React-core.js

/**
  * Copyright 2013-present, Facebook, Inc.
  * All rights reserved.
  *
  * This source code is licensed under the BSD-style license found in the
  * LICENSE file in the root directory of this source tree. An additional grant
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @providesModule React-core
  */
'use strict';

var warning = require('warning');
var emptyObject = require('emptyObject');
var invariant = require('invariant');
var emptyFunction = require('emptyFunction');

var warning$2 = warning;

function warnNoop(publicInstance, callerName) {
  if (__DEV__) {
    var constructor = publicInstance.constructor;
    warning$2(false, '%s(...): Can only update a mounted or mounting component. ' + 'This usually means you called %s() on an unmounted component. ' + 'This is a no-op.\n\nPlease check the code for the %s component.', callerName, callerName, constructor && (constructor.displayName || constructor.name) || 'ReactClass');
  }
}

/**
 * This is the abstract API for an update queue.
 */
var ReactNoopUpdateQueue$1 = {

  /**
   * Checks whether or not this composite component is mounted.
   * @param {ReactClass} publicInstance The instance we want to test.
   * @return {boolean} True if mounted, false otherwise.
   * @protected
   * @final
   */
  isMounted: function (publicInstance) {
    return false;
  },

  /**
   * Forces an update. This should only be invoked when it is known with
   * certainty that we are **not** in a DOM transaction.
   *
   * You may want to call this when you know that some deeper aspect of the
   * component's state has changed but `setState` was not called.
   *
   * This will not invoke `shouldComponentUpdate`, but it will invoke
   * `componentWillUpdate` and `componentDidUpdate`.
   *
   * @param {ReactClass} publicInstance The instance that should rerender.
   * @param {?function} callback Called after component is updated.
   * @param {?string} Name of the calling function in the public API.
   * @internal
   */
  enqueueForceUpdate: function (publicInstance, callback, callerName) {
    warnNoop(publicInstance, 'forceUpdate');
  },

  /**
   * Replaces all of the state. Always use this or `setState` to mutate state.
   * You should treat `this.state` as immutable.
   *
   * There is no guarantee that `this.state` will be immediately updated, so
   * accessing `this.state` after calling this method may return the old value.
   *
   * @param {ReactClass} publicInstance The instance that should rerender.
   * @param {object} completeState Next state.
   * @param {?function} callback Called after component is updated.
   * @param {?string} Name of the calling function in the public API.
   * @internal
   */
  enqueueReplaceState: function (publicInstance, completeState, callback, callerName) {
    warnNoop(publicInstance, 'replaceState');
  },

  /**
   * Sets a subset of the state. This only exists because _pendingState is
   * internal. This provides a merging strategy that is not available to deep
   * properties which is confusing. TODO: Expose pendingState or don't use it
   * during the merge.
   *
   * @param {ReactClass} publicInstance The instance that should rerender.
   * @param {object} partialState Next partial state to be merged with state.
   * @param {?function} callback Called after component is updated.
   * @param {?string} Name of the calling function in the public API.
   * @internal
   */
  enqueueSetState: function (publicInstance, partialState, callback, callerName) {
    warnNoop(publicInstance, 'setState');
  }
};

var ReactNoopUpdateQueue_1 = ReactNoopUpdateQueue$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 *
 * @providesModule canDefineProperty
 */

var canDefineProperty$1 = false;
if (__DEV__) {
  try {
    // $FlowFixMe https://github.com/facebook/flow/issues/285
    Object.defineProperty({}, 'x', { get: function () {} });
    canDefineProperty$1 = true;
  } catch (x) {
    // IE will fail on defineProperty
  }
}

var canDefineProperty_1 = canDefineProperty$1;

var ReactNoopUpdateQueue = ReactNoopUpdateQueue_1;

var canDefineProperty = canDefineProperty_1;
var emptyObject$1 = emptyObject;
var invariant2 = invariant;
var warning$1 = warning;

/**
 * Base class helpers for the updating state of a component.
 */
function ReactComponent(props, context, updater) {
  this.props = props;
  this.context = context;
  this.refs = emptyObject$1;
  // We initialize the default updater but the real one gets injected by the
  // renderer.
  this.updater = updater || ReactNoopUpdateQueue;
}

ReactComponent.prototype.isReactComponent = {};

/**
 * Sets a subset of the state. Always use this to mutate
 * state. You should treat `this.state` as immutable.
 *
 * There is no guarantee that `this.state` will be immediately updated, so
 * accessing `this.state` after calling this method may return the old value.
 *
 * There is no guarantee that calls to `setState` will run synchronously,
 * as they may eventually be batched together.  You can provide an optional
 * callback that will be executed when the call to setState is actually
 * completed.
 *
 * When a function is provided to setState, it will be called at some point in
 * the future (not synchronously). It will be called with the up to date
 * component arguments (state, props, context). These values can be different
 * from this.* because your function may be called after receiveProps but before
 * shouldComponentUpdate, and this new state, props, and context will not yet be
 * assigned to this.
 *
 * @param {object|function} partialState Next partial state or function to
 *        produce next partial state to be merged with current state.
 * @param {?function} callback Called after state is updated.
 * @final
 * @protected
 */
ReactComponent.prototype.setState = function (partialState, callback) {
  invariant2(typeof partialState === 'object' || typeof partialState === 'function' || partialState == null, 'setState(...): takes an object of state variables to update or a ' + 'function which returns an object of state variables.');
  this.updater.enqueueSetState(this, partialState, callback, 'setState');
};

/**
 * Forces an update. This should only be invoked when it is known with
 * certainty that we are **not** in a DOM transaction.
 *
 * You may want to call this when you know that some deeper aspect of the
 * component's state has changed but `setState` was not called.
 *
 * This will not invoke `shouldComponentUpdate`, but it will invoke
 * `componentWillUpdate` and `componentDidUpdate`.
 *
 * @param {?function} callback Called after update is complete.
 * @final
 * @protected
 */
ReactComponent.prototype.forceUpdate = function (callback) {
  this.updater.enqueueForceUpdate(this, callback, 'forceUpdate');
};

/**
 * Deprecated APIs. These APIs used to exist on classic React classes but since
 * we would like to deprecate them, we're not going to move them over to this
 * modern base class. Instead, we define a getter that warns if it's accessed.
 */
if (__DEV__) {
  var deprecatedAPIs = {
    isMounted: ['isMounted', 'Instead, make sure to clean up subscriptions and pending requests in ' + 'componentWillUnmount to prevent memory leaks.'],
    replaceState: ['replaceState', 'Refactor your code to use setState instead (see ' + 'https://github.com/facebook/react/issues/3236).']
  };
  var defineDeprecationWarning = function (methodName, info) {
    if (canDefineProperty) {
      Object.defineProperty(ReactComponent.prototype, methodName, {
        get: function () {
          warning$1(false, '%s(...) is deprecated in plain JavaScript React classes. %s', info[0], info[1]);
          return undefined;
        }
      });
    }
  };
  for (var fnName in deprecatedAPIs) {
    if (deprecatedAPIs.hasOwnProperty(fnName)) {
      defineDeprecationWarning(fnName, deprecatedAPIs[fnName]);
    }
  }
}

/**
 * Base class helpers for the updating state of a component.
 */
function ReactPureComponent(props, context, updater) {
  // Duplicated from ReactComponent.
  this.props = props;
  this.context = context;
  this.refs = emptyObject$1;
  // We initialize the default updater but the real one gets injected by the
  // renderer.
  this.updater = updater || ReactNoopUpdateQueue;
}

function ComponentDummy() {}
ComponentDummy.prototype = ReactComponent.prototype;
ReactPureComponent.prototype = new ComponentDummy();
ReactPureComponent.prototype.constructor = ReactPureComponent;
// Avoid an extra prototype jump for these methods.
Object.assign(ReactPureComponent.prototype, ReactComponent.prototype);
ReactPureComponent.prototype.isPureReactComponent = true;

var ReactBaseClasses$1 = {
  Component: ReactComponent,
  PureComponent: ReactPureComponent
};

var invariant$1 = invariant;

/**
 * Static poolers. Several custom versions for each potential number of
 * arguments. A completely generic pooler is easy to implement, but would
 * require accessing the `arguments` object. In each of these, `this` refers to
 * the Class itself, not an instance. If any others are needed, simply add them
 * here, or in their own files.
 */
var oneArgumentPooler = function (copyFieldsFrom) {
  var Klass = this;
  if (Klass.instancePool.length) {
    var instance = Klass.instancePool.pop();
    Klass.call(instance, copyFieldsFrom);
    return instance;
  } else {
    return new Klass(copyFieldsFrom);
  }
};

var twoArgumentPooler$1 = function (a1, a2) {
  var Klass = this;
  if (Klass.instancePool.length) {
    var instance = Klass.instancePool.pop();
    Klass.call(instance, a1, a2);
    return instance;
  } else {
    return new Klass(a1, a2);
  }
};

var threeArgumentPooler = function (a1, a2, a3) {
  var Klass = this;
  if (Klass.instancePool.length) {
    var instance = Klass.instancePool.pop();
    Klass.call(instance, a1, a2, a3);
    return instance;
  } else {
    return new Klass(a1, a2, a3);
  }
};

var fourArgumentPooler$1 = function (a1, a2, a3, a4) {
  var Klass = this;
  if (Klass.instancePool.length) {
    var instance = Klass.instancePool.pop();
    Klass.call(instance, a1, a2, a3, a4);
    return instance;
  } else {
    return new Klass(a1, a2, a3, a4);
  }
};

var standardReleaser = function (instance) {
  var Klass = this;
  invariant$1(instance instanceof Klass, 'Trying to release an instance into a pool of a different type.');
  instance.destructor();
  if (Klass.instancePool.length < Klass.poolSize) {
    Klass.instancePool.push(instance);
  }
};

var DEFAULT_POOL_SIZE = 10;
var DEFAULT_POOLER = oneArgumentPooler;

/**
 * Augments `CopyConstructor` to be a poolable class, augmenting only the class
 * itself (statically) not adding any prototypical fields. Any CopyConstructor
 * you give this may have a `poolSize` property, and will look for a
 * prototypical `destructor` on instances.
 *
 * @param {Function} CopyConstructor Constructor that can be used to reset.
 * @param {Function} pooler Customizable pooler.
 */
var addPoolingTo = function (CopyConstructor, pooler) {
  // Casting as any so that flow ignores the actual implementation and trusts
  // it to match the type we declared
  var NewKlass = CopyConstructor;
  NewKlass.instancePool = [];
  NewKlass.getPooled = pooler || DEFAULT_POOLER;
  if (!NewKlass.poolSize) {
    NewKlass.poolSize = DEFAULT_POOL_SIZE;
  }
  NewKlass.release = standardReleaser;
  return NewKlass;
};

var PooledClass$1 = {
  addPoolingTo: addPoolingTo,
  oneArgumentPooler: oneArgumentPooler,
  twoArgumentPooler: twoArgumentPooler$1,
  threeArgumentPooler: threeArgumentPooler,
  fourArgumentPooler: fourArgumentPooler$1
};

var PooledClass_1 = PooledClass$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactCurrentOwner
 *
 */

/**
 * Keeps track of the current owner.
 *
 * The current owner is the component who should own any components that are
 * currently being constructed.
 */
var ReactCurrentOwner$1 = {

  /**
   * @internal
   * @type {ReactComponent}
   */
  current: null

};

var ReactCurrentOwner_1 = ReactCurrentOwner$1;

/**
 * Copyright 2014-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactElementSymbol
 *
 */

// The Symbol used to tag the ReactElement type. If there is no native Symbol
// nor polyfill, then a plain number is used for performance.

var REACT_ELEMENT_TYPE$1 = typeof Symbol === 'function' && Symbol['for'] && Symbol['for']('react.element') || 0xeac7;

var ReactElementSymbol = REACT_ELEMENT_TYPE$1;

var ReactCurrentOwner = ReactCurrentOwner_1;

var warning$3 = warning;
var canDefineProperty$2 = canDefineProperty_1;
var hasOwnProperty = Object.prototype.hasOwnProperty;

var REACT_ELEMENT_TYPE = ReactElementSymbol;

var RESERVED_PROPS = {
  key: true,
  ref: true,
  __self: true,
  __source: true
};

var specialPropKeyWarningShown;
var specialPropRefWarningShown;

function hasValidRef(config) {
  if (__DEV__) {
    if (hasOwnProperty.call(config, 'ref')) {
      var getter = Object.getOwnPropertyDescriptor(config, 'ref').get;
      if (getter && getter.isReactWarning) {
        return false;
      }
    }
  }
  return config.ref !== undefined;
}

function hasValidKey(config) {
  if (__DEV__) {
    if (hasOwnProperty.call(config, 'key')) {
      var getter = Object.getOwnPropertyDescriptor(config, 'key').get;
      if (getter && getter.isReactWarning) {
        return false;
      }
    }
  }
  return config.key !== undefined;
}

function defineKeyPropWarningGetter(props, displayName) {
  var warnAboutAccessingKey = function () {
    if (!specialPropKeyWarningShown) {
      specialPropKeyWarningShown = true;
      warning$3(false, '%s: `key` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName);
    }
  };
  warnAboutAccessingKey.isReactWarning = true;
  Object.defineProperty(props, 'key', {
    get: warnAboutAccessingKey,
    configurable: true
  });
}

function defineRefPropWarningGetter(props, displayName) {
  var warnAboutAccessingRef = function () {
    if (!specialPropRefWarningShown) {
      specialPropRefWarningShown = true;
      warning$3(false, '%s: `ref` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName);
    }
  };
  warnAboutAccessingRef.isReactWarning = true;
  Object.defineProperty(props, 'ref', {
    get: warnAboutAccessingRef,
    configurable: true
  });
}

/**
 * Factory method to create a new React element. This no longer adheres to
 * the class pattern, so do not use new to call it. Also, no instanceof check
 * will work. Instead test $$typeof field against Symbol.for('react.element') to check
 * if something is a React Element.
 *
 * @param {*} type
 * @param {*} key
 * @param {string|object} ref
 * @param {*} self A *temporary* helper to detect places where `this` is
 * different from the `owner` when React.createElement is called, so that we
 * can warn. We want to get rid of owner and replace string `ref`s with arrow
 * functions, and as long as `this` and owner are the same, there will be no
 * change in behavior.
 * @param {*} source An annotation object (added by a transpiler or otherwise)
 * indicating filename, line number, and/or other information.
 * @param {*} owner
 * @param {*} props
 * @internal
 */
var ReactElement$2 = function (type, key, ref, self, source, owner, props) {
  var element = {
    // This tag allow us to uniquely identify this as a React Element
    $$typeof: REACT_ELEMENT_TYPE,

    // Built-in properties that belong on the element
    type: type,
    key: key,
    ref: ref,
    props: props,

    // Record the component responsible for creating this element.
    _owner: owner
  };

  if (__DEV__) {
    // The validation flag is currently mutative. We put it on
    // an external backing store so that we can freeze the whole object.
    // This can be replaced with a WeakMap once they are implemented in
    // commonly used development environments.
    element._store = {};

    // To make comparing ReactElements easier for testing purposes, we make
    // the validation flag non-enumerable (where possible, which should
    // include every environment we run tests in), so the test framework
    // ignores it.
    if (canDefineProperty$2) {
      Object.defineProperty(element._store, 'validated', {
        configurable: false,
        enumerable: false,
        writable: true,
        value: false
      });
      // self and source are DEV only properties.
      Object.defineProperty(element, '_self', {
        configurable: false,
        enumerable: false,
        writable: false,
        value: self
      });
      // Two elements created in two different places should be considered
      // equal for testing purposes and therefore we hide it from enumeration.
      Object.defineProperty(element, '_source', {
        configurable: false,
        enumerable: false,
        writable: false,
        value: source
      });
    } else {
      element._store.validated = false;
      element._self = self;
      element._source = source;
    }
    if (Object.freeze) {
      Object.freeze(element.props);
      Object.freeze(element);
    }
  }

  return element;
};

/**
 * Create and return a new ReactElement of the given type.
 * See https://facebook.github.io/react/docs/react-api.html#createelement
 */
ReactElement$2.createElement = function (type, config, children) {
  var propName;

  // Reserved names are extracted
  var props = {};

  var key = null;
  var ref = null;
  var self = null;
  var source = null;

  if (config != null) {
    if (hasValidRef(config)) {
      ref = config.ref;
    }
    if (hasValidKey(config)) {
      key = '' + config.key;
    }

    self = config.__self === undefined ? null : config.__self;
    source = config.__source === undefined ? null : config.__source;
    // Remaining properties are added to a new props object
    for (propName in config) {
      if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
        props[propName] = config[propName];
      }
    }
  }

  // Children can be more than one argument, and those are transferred onto
  // the newly allocated props object.
  var childrenLength = arguments.length - 2;
  if (childrenLength === 1) {
    props.children = children;
  } else if (childrenLength > 1) {
    var childArray = Array(childrenLength);
    for (var i = 0; i < childrenLength; i++) {
      childArray[i] = arguments[i + 2];
    }
    if (__DEV__) {
      if (Object.freeze) {
        Object.freeze(childArray);
      }
    }
    props.children = childArray;
  }

  // Resolve default props
  if (type && type.defaultProps) {
    var defaultProps = type.defaultProps;
    for (propName in defaultProps) {
      if (props[propName] === undefined) {
        props[propName] = defaultProps[propName];
      }
    }
  }
  if (__DEV__) {
    if (key || ref) {
      if (typeof props.$$typeof === 'undefined' || props.$$typeof !== REACT_ELEMENT_TYPE) {
        var displayName = typeof type === 'function' ? type.displayName || type.name || 'Unknown' : type;
        if (key) {
          defineKeyPropWarningGetter(props, displayName);
        }
        if (ref) {
          defineRefPropWarningGetter(props, displayName);
        }
      }
    }
  }
  return ReactElement$2(type, key, ref, self, source, ReactCurrentOwner.current, props);
};

/**
 * Return a function that produces ReactElements of a given type.
 * See https://facebook.github.io/react/docs/react-api.html#createfactory
 */
ReactElement$2.createFactory = function (type) {
  var factory = ReactElement$2.createElement.bind(null, type);
  // Expose the type on the factory and the prototype so that it can be
  // easily accessed on elements. E.g. `<Foo />.type === Foo`.
  // This should not be named `constructor` since this may not be the function
  // that created the element, and it may not even be a constructor.
  // Legacy hook TODO: Warn if this is accessed
  factory.type = type;
  return factory;
};

ReactElement$2.cloneAndReplaceKey = function (oldElement, newKey) {
  var newElement = ReactElement$2(oldElement.type, newKey, oldElement.ref, oldElement._self, oldElement._source, oldElement._owner, oldElement.props);

  return newElement;
};

/**
 * Clone and return a new ReactElement using element as the starting point.
 * See https://facebook.github.io/react/docs/react-api.html#cloneelement
 */
ReactElement$2.cloneElement = function (element, config, children) {
  var propName;

  // Original props are copied
  var props = Object.assign({}, element.props);

  // Reserved names are extracted
  var key = element.key;
  var ref = element.ref;
  // Self is preserved since the owner is preserved.
  var self = element._self;
  // Source is preserved since cloneElement is unlikely to be targeted by a
  // transpiler, and the original source is probably a better indicator of the
  // true owner.
  var source = element._source;

  // Owner will be preserved, unless ref is overridden
  var owner = element._owner;

  if (config != null) {
    if (hasValidRef(config)) {
      // Silently steal the ref from the parent.
      ref = config.ref;
      owner = ReactCurrentOwner.current;
    }
    if (hasValidKey(config)) {
      key = '' + config.key;
    }

    // Remaining properties override existing props
    var defaultProps;
    if (element.type && element.type.defaultProps) {
      defaultProps = element.type.defaultProps;
    }
    for (propName in config) {
      if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
        if (config[propName] === undefined && defaultProps !== undefined) {
          // Resolve default props
          props[propName] = defaultProps[propName];
        } else {
          props[propName] = config[propName];
        }
      }
    }
  }

  // Children can be more than one argument, and those are transferred onto
  // the newly allocated props object.
  var childrenLength = arguments.length - 2;
  if (childrenLength === 1) {
    props.children = children;
  } else if (childrenLength > 1) {
    var childArray = Array(childrenLength);
    for (var i = 0; i < childrenLength; i++) {
      childArray[i] = arguments[i + 2];
    }
    props.children = childArray;
  }

  return ReactElement$2(element.type, key, ref, self, source, owner, props);
};

/**
 * Verifies the object is a ReactElement.
 * See https://facebook.github.io/react/docs/react-api.html#isvalidelement
 * @param {?object} object
 * @return {boolean} True if `object` is a valid component.
 * @final
 */
ReactElement$2.isValidElement = function (object) {
  return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE;
};

var ReactElement_1 = ReactElement$2;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule getIteratorFn
 *
 */

/* global Symbol */

var ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
var FAUX_ITERATOR_SYMBOL = '@@iterator'; // Before Symbol spec.

/**
 * Returns the iterator method function contained on the iterable object.
 *
 * Be sure to invoke the function with the iterable as context:
 *
 *     var iteratorFn = getIteratorFn(myIterable);
 *     if (iteratorFn) {
 *       var iterator = iteratorFn.call(myIterable);
 *       ...
 *     }
 *
 * @param {?object} maybeIterable
 * @return {?function}
 */
function getIteratorFn$1(maybeIterable) {
  var iteratorFn = maybeIterable && (ITERATOR_SYMBOL && maybeIterable[ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL]);
  if (typeof iteratorFn === 'function') {
    return iteratorFn;
  }
}

var getIteratorFn_1 = getIteratorFn$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule KeyEscapeUtils
 *
 */

/**
 * Escape and wrap key so it is safe to use as a reactid
 *
 * @param {string} key to be escaped.
 * @return {string} the escaped key.
 */

function escape(key) {
  var escapeRegex = /[=:]/g;
  var escaperLookup = {
    '=': '=0',
    ':': '=2'
  };
  var escapedString = ('' + key).replace(escapeRegex, function (match) {
    return escaperLookup[match];
  });

  return '$' + escapedString;
}

/**
 * Unescape and unwrap key for human-readable display
 *
 * @param {string} key to unescape.
 * @return {string} the unescaped key.
 */
function unescape(key) {
  var unescapeRegex = /(=0|=2)/g;
  var unescaperLookup = {
    '=0': '=',
    '=2': ':'
  };
  var keySubstring = key[0] === '.' && key[1] === '$' ? key.substring(2) : key.substring(1);

  return ('' + keySubstring).replace(unescapeRegex, function (match) {
    return unescaperLookup[match];
  });
}

var KeyEscapeUtils$1 = {
  escape: escape,
  unescape: unescape
};

var KeyEscapeUtils_1 = KeyEscapeUtils$1;

var ReactCurrentOwner$2 = ReactCurrentOwner_1;
var REACT_ELEMENT_TYPE$2 = ReactElementSymbol;

var getIteratorFn = getIteratorFn_1;
var invariant$2 = invariant;
var KeyEscapeUtils = KeyEscapeUtils_1;
var warning$4 = warning;

var SEPARATOR = '.';
var SUBSEPARATOR = ':';

/**
 * This is inlined from ReactElement since this file is shared between
 * isomorphic and renderers. We could extract this to a
 *
 */

/**
 * TODO: Test that a single child and an array with one item have the same key
 * pattern.
 */

var didWarnAboutMaps = false;

/**
 * Generate a key string that identifies a component within a set.
 *
 * @param {*} component A component that could contain a manual key.
 * @param {number} index Index that is used if a manual key is not provided.
 * @return {string}
 */
function getComponentKey(component, index) {
  // Do some typechecking here since we call this blindly. We want to ensure
  // that we don't block potential future ES APIs.
  if (component && typeof component === 'object' && component.key != null) {
    // Explicit key
    return KeyEscapeUtils.escape(component.key);
  }
  // Implicit key determined by the index in the set
  return index.toString(36);
}

/**
 * @param {?*} children Children tree container.
 * @param {!string} nameSoFar Name of the key path so far.
 * @param {!function} callback Callback to invoke with each child found.
 * @param {?*} traverseContext Used to pass information throughout the traversal
 * process.
 * @return {!number} The number of children in this subtree.
 */
function traverseAllChildrenImpl(children, nameSoFar, callback, traverseContext) {
  var type = typeof children;

  if (type === 'undefined' || type === 'boolean') {
    // All of the above are perceived as null.
    children = null;
  }

  if (children === null || type === 'string' || type === 'number' ||
  // The following is inlined from ReactElement. This means we can optimize
  // some checks. React Fiber also inlines this logic for similar purposes.
  type === 'object' && children.$$typeof === REACT_ELEMENT_TYPE$2) {
    callback(traverseContext, children,
    // If it's the only child, treat the name as if it was wrapped in an array
    // so that it's consistent if the number of children grows.
    nameSoFar === '' ? SEPARATOR + getComponentKey(children, 0) : nameSoFar);
    return 1;
  }

  var child;
  var nextName;
  var subtreeCount = 0; // Count of children found in the current subtree.
  var nextNamePrefix = nameSoFar === '' ? SEPARATOR : nameSoFar + SUBSEPARATOR;

  if (Array.isArray(children)) {
    for (var i = 0; i < children.length; i++) {
      child = children[i];
      nextName = nextNamePrefix + getComponentKey(child, i);
      subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext);
    }
  } else {
    var iteratorFn = getIteratorFn(children);
    if (iteratorFn) {
      if (__DEV__) {
        // Warn about using Maps as children
        if (iteratorFn === children.entries) {
          var mapsAsChildrenAddendum = '';
          if (ReactCurrentOwner$2.current) {
            var mapsAsChildrenOwnerName = ReactCurrentOwner$2.current.getName();
            if (mapsAsChildrenOwnerName) {
              mapsAsChildrenAddendum = '\n\nCheck the render method of `' + mapsAsChildrenOwnerName + '`.';
            }
          }
          warning$4(didWarnAboutMaps, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.%s', mapsAsChildrenAddendum);
          didWarnAboutMaps = true;
        }
      }

      var iterator = iteratorFn.call(children);
      var step;
      var ii = 0;
      while (!(step = iterator.next()).done) {
        child = step.value;
        nextName = nextNamePrefix + getComponentKey(child, ii++);
        subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext);
      }
    } else if (type === 'object') {
      var addendum = '';
      if (__DEV__) {
        addendum = ' If you meant to render a collection of children, use an array ' + 'instead or wrap the object using createFragment(object) from the ' + 'React add-ons.';
        if (ReactCurrentOwner$2.current) {
          var name = ReactCurrentOwner$2.current.getName();
          if (name) {
            addendum += '\n\nCheck the render method of `' + name + '`.';
          }
        }
      }
      var childrenString = '' + children;
      invariant$2(false, 'Objects are not valid as a React child (found: %s).%s', childrenString === '[object Object]' ? 'object with keys {' + Object.keys(children).join(', ') + '}' : childrenString, addendum);
    }
  }

  return subtreeCount;
}

/**
 * Traverses children that are typically specified as `props.children`, but
 * might also be specified through attributes:
 *
 * - `traverseAllChildren(this.props.children, ...)`
 * - `traverseAllChildren(this.props.leftPanelChildren, ...)`
 *
 * The `traverseContext` is an optional argument that is passed through the
 * entire traversal. It can be used to store accumulations or anything else that
 * the callback might find relevant.
 *
 * @param {?*} children Children tree object.
 * @param {!function} callback To invoke upon traversing each child.
 * @param {?*} traverseContext Context for traversal.
 * @return {!number} The number of children in this subtree.
 */
function traverseAllChildren$1(children, callback, traverseContext) {
  if (children == null) {
    return 0;
  }

  return traverseAllChildrenImpl(children, '', callback, traverseContext);
}

var traverseAllChildren_1 = traverseAllChildren$1;

var PooledClass = PooledClass_1;
var ReactElement$1 = ReactElement_1;

var emptyFunction$1 = emptyFunction;
var traverseAllChildren = traverseAllChildren_1;

var twoArgumentPooler = PooledClass.twoArgumentPooler;
var fourArgumentPooler = PooledClass.fourArgumentPooler;

var userProvidedKeyEscapeRegex = /\/+/g;
function escapeUserProvidedKey(text) {
  return ('' + text).replace(userProvidedKeyEscapeRegex, '$&/');
}

/**
 * PooledClass representing the bookkeeping associated with performing a child
 * traversal. Allows avoiding binding callbacks.
 *
 * @constructor ForEachBookKeeping
 * @param {!function} forEachFunction Function to perform traversal with.
 * @param {?*} forEachContext Context to perform context with.
 */
function ForEachBookKeeping(forEachFunction, forEachContext) {
  this.func = forEachFunction;
  this.context = forEachContext;
  this.count = 0;
}
ForEachBookKeeping.prototype.destructor = function () {
  this.func = null;
  this.context = null;
  this.count = 0;
};
PooledClass.addPoolingTo(ForEachBookKeeping, twoArgumentPooler);

function forEachSingleChild(bookKeeping, child, name) {
  var func = bookKeeping.func,
      context = bookKeeping.context;

  func.call(context, child, bookKeeping.count++);
}

/**
 * Iterates through children that are typically specified as `props.children`.
 *
 * See https://facebook.github.io/react/docs/react-api.html#react.children.foreach
 *
 * The provided forEachFunc(child, index) will be called for each
 * leaf child.
 *
 * @param {?*} children Children tree container.
 * @param {function(*, int)} forEachFunc
 * @param {*} forEachContext Context for forEachContext.
 */
function forEachChildren(children, forEachFunc, forEachContext) {
  if (children == null) {
    return children;
  }
  var traverseContext = ForEachBookKeeping.getPooled(forEachFunc, forEachContext);
  traverseAllChildren(children, forEachSingleChild, traverseContext);
  ForEachBookKeeping.release(traverseContext);
}

/**
 * PooledClass representing the bookkeeping associated with performing a child
 * mapping. Allows avoiding binding callbacks.
 *
 * @constructor MapBookKeeping
 * @param {!*} mapResult Object containing the ordered map of results.
 * @param {!function} mapFunction Function to perform mapping with.
 * @param {?*} mapContext Context to perform mapping with.
 */
function MapBookKeeping(mapResult, keyPrefix, mapFunction, mapContext) {
  this.result = mapResult;
  this.keyPrefix = keyPrefix;
  this.func = mapFunction;
  this.context = mapContext;
  this.count = 0;
}
MapBookKeeping.prototype.destructor = function () {
  this.result = null;
  this.keyPrefix = null;
  this.func = null;
  this.context = null;
  this.count = 0;
};
PooledClass.addPoolingTo(MapBookKeeping, fourArgumentPooler);

function mapSingleChildIntoContext(bookKeeping, child, childKey) {
  var result = bookKeeping.result,
      keyPrefix = bookKeeping.keyPrefix,
      func = bookKeeping.func,
      context = bookKeeping.context;


  var mappedChild = func.call(context, child, bookKeeping.count++);
  if (Array.isArray(mappedChild)) {
    mapIntoWithKeyPrefixInternal(mappedChild, result, childKey, emptyFunction$1.thatReturnsArgument);
  } else if (mappedChild != null) {
    if (ReactElement$1.isValidElement(mappedChild)) {
      mappedChild = ReactElement$1.cloneAndReplaceKey(mappedChild,
      // Keep both the (mapped) and old keys if they differ, just as
      // traverseAllChildren used to do for objects as children
      keyPrefix + (mappedChild.key && (!child || child.key !== mappedChild.key) ? escapeUserProvidedKey(mappedChild.key) + '/' : '') + childKey);
    }
    result.push(mappedChild);
  }
}

function mapIntoWithKeyPrefixInternal(children, array, prefix, func, context) {
  var escapedPrefix = '';
  if (prefix != null) {
    escapedPrefix = escapeUserProvidedKey(prefix) + '/';
  }
  var traverseContext = MapBookKeeping.getPooled(array, escapedPrefix, func, context);
  traverseAllChildren(children, mapSingleChildIntoContext, traverseContext);
  MapBookKeeping.release(traverseContext);
}

/**
 * Maps children that are typically specified as `props.children`.
 *
 * See https://facebook.github.io/react/docs/react-api.html#react.children.map
 *
 * The provided mapFunction(child, key, index) will be called for each
 * leaf child.
 *
 * @param {?*} children Children tree container.
 * @param {function(*, int)} func The map function.
 * @param {*} context Context for mapFunction.
 * @return {object} Object containing the ordered map of results.
 */
function mapChildren(children, func, context) {
  if (children == null) {
    return children;
  }
  var result = [];
  mapIntoWithKeyPrefixInternal(children, result, null, func, context);
  return result;
}

function forEachSingleChildDummy(traverseContext, child, name) {
  return null;
}

/**
 * Count the number of children that are typically specified as
 * `props.children`.
 *
 * See https://facebook.github.io/react/docs/react-api.html#react.children.count
 *
 * @param {?*} children Children tree container.
 * @return {number} The number of children.
 */
function countChildren(children, context) {
  return traverseAllChildren(children, forEachSingleChildDummy, null);
}

/**
 * Flatten a children object (typically specified as `props.children`) and
 * return an array with appropriately re-keyed children.
 *
 * See https://facebook.github.io/react/docs/react-api.html#react.children.toarray
 */
function toArray(children) {
  var result = [];
  mapIntoWithKeyPrefixInternal(children, result, null, emptyFunction$1.thatReturnsArgument);
  return result;
}

var ReactChildren$1 = {
  forEach: forEachChildren,
  map: mapChildren,
  mapIntoWithKeyPrefixInternal: mapIntoWithKeyPrefixInternal,
  count: countChildren,
  toArray: toArray
};

var ReactChildren_1 = ReactChildren$1;

var ReactBaseClasses$3 = ReactBaseClasses$1;
var ReactElement$3 = ReactElement_1;
var ReactNoopUpdateQueue$2 = ReactNoopUpdateQueue_1;

var emptyObject$2 = emptyObject;
var invariant$3 = invariant;
var warning$5 = warning;

var ReactComponent$1 = ReactBaseClasses$3.Component;

var MIXINS_KEY = 'mixins';

// Helper function to allow the creation of anonymous functions which do not
// have .name set to the name of the variable being assigned to.
function identity(fn) {
  return fn;
}

/**
 * Policies that describe methods in `ReactClassInterface`.
 */


/**
 * Composite components are higher-level components that compose other composite
 * or host components.
 *
 * To create a new type of `ReactClass`, pass a specification of
 * your new class to `React.createClass`. The only requirement of your class
 * specification is that you implement a `render` method.
 *
 *   var MyComponent = React.createClass({
 *     render: function() {
 *       return <div>Hello World</div>;
 *     }
 *   });
 *
 * The class specification supports a specific protocol of methods that have
 * special meaning (e.g. `render`). See `ReactClassInterface` for
 * more the comprehensive protocol. Any other properties and methods in the
 * class specification will be available on the prototype.
 *
 * @interface ReactClassInterface
 * @internal
 */
var ReactClassInterface = {

  /**
   * An array of Mixin objects to include when defining your component.
   *
   * @type {array}
   * @optional
   */
  mixins: 'DEFINE_MANY',

  /**
   * An object containing properties and methods that should be defined on
   * the component's constructor instead of its prototype (static methods).
   *
   * @type {object}
   * @optional
   */
  statics: 'DEFINE_MANY',

  /**
   * Definition of prop types for this component.
   *
   * @type {object}
   * @optional
   */
  propTypes: 'DEFINE_MANY',

  /**
   * Definition of context types for this component.
   *
   * @type {object}
   * @optional
   */
  contextTypes: 'DEFINE_MANY',

  /**
   * Definition of context types this component sets for its children.
   *
   * @type {object}
   * @optional
   */
  childContextTypes: 'DEFINE_MANY',

  // ==== Definition methods ====

  /**
   * Invoked when the component is mounted. Values in the mapping will be set on
   * `this.props` if that prop is not specified (i.e. using an `in` check).
   *
   * This method is invoked before `getInitialState` and therefore cannot rely
   * on `this.state` or use `this.setState`.
   *
   * @return {object}
   * @optional
   */
  getDefaultProps: 'DEFINE_MANY_MERGED',

  /**
   * Invoked once before the component is mounted. The return value will be used
   * as the initial value of `this.state`.
   *
   *   getInitialState: function() {
   *     return {
   *       isOn: false,
   *       fooBaz: new BazFoo()
   *     }
   *   }
   *
   * @return {object}
   * @optional
   */
  getInitialState: 'DEFINE_MANY_MERGED',

  /**
   * @return {object}
   * @optional
   */
  getChildContext: 'DEFINE_MANY_MERGED',

  /**
   * Uses props from `this.props` and state from `this.state` to render the
   * structure of the component.
   *
   * No guarantees are made about when or how often this method is invoked, so
   * it must not have side effects.
   *
   *   render: function() {
   *     var name = this.props.name;
   *     return <div>Hello, {name}!</div>;
   *   }
   *
   * @return {ReactComponent}
   * @required
   */
  render: 'DEFINE_ONCE',

  // ==== Delegate methods ====

  /**
   * Invoked when the component is initially created and about to be mounted.
   * This may have side effects, but any external subscriptions or data created
   * by this method must be cleaned up in `componentWillUnmount`.
   *
   * @optional
   */
  componentWillMount: 'DEFINE_MANY',

  /**
   * Invoked when the component has been mounted and has a DOM representation.
   * However, there is no guarantee that the DOM node is in the document.
   *
   * Use this as an opportunity to operate on the DOM when the component has
   * been mounted (initialized and rendered) for the first time.
   *
   * @param {DOMElement} rootNode DOM element representing the component.
   * @optional
   */
  componentDidMount: 'DEFINE_MANY',

  /**
   * Invoked before the component receives new props.
   *
   * Use this as an opportunity to react to a prop transition by updating the
   * state using `this.setState`. Current props are accessed via `this.props`.
   *
   *   componentWillReceiveProps: function(nextProps, nextContext) {
   *     this.setState({
   *       likesIncreasing: nextProps.likeCount > this.props.likeCount
   *     });
   *   }
   *
   * NOTE: There is no equivalent `componentWillReceiveState`. An incoming prop
   * transition may cause a state change, but the opposite is not true. If you
   * need it, you are probably looking for `componentWillUpdate`.
   *
   * @param {object} nextProps
   * @optional
   */
  componentWillReceiveProps: 'DEFINE_MANY',

  /**
   * Invoked while deciding if the component should be updated as a result of
   * receiving new props, state and/or context.
   *
   * Use this as an opportunity to `return false` when you're certain that the
   * transition to the new props/state/context will not require a component
   * update.
   *
   *   shouldComponentUpdate: function(nextProps, nextState, nextContext) {
   *     return !equal(nextProps, this.props) ||
   *       !equal(nextState, this.state) ||
   *       !equal(nextContext, this.context);
   *   }
   *
   * @param {object} nextProps
   * @param {?object} nextState
   * @param {?object} nextContext
   * @return {boolean} True if the component should update.
   * @optional
   */
  shouldComponentUpdate: 'DEFINE_ONCE',

  /**
   * Invoked when the component is about to update due to a transition from
   * `this.props`, `this.state` and `this.context` to `nextProps`, `nextState`
   * and `nextContext`.
   *
   * Use this as an opportunity to perform preparation before an update occurs.
   *
   * NOTE: You **cannot** use `this.setState()` in this method.
   *
   * @param {object} nextProps
   * @param {?object} nextState
   * @param {?object} nextContext
   * @param {ReactReconcileTransaction} transaction
   * @optional
   */
  componentWillUpdate: 'DEFINE_MANY',

  /**
   * Invoked when the component's DOM representation has been updated.
   *
   * Use this as an opportunity to operate on the DOM when the component has
   * been updated.
   *
   * @param {object} prevProps
   * @param {?object} prevState
   * @param {?object} prevContext
   * @param {DOMElement} rootNode DOM element representing the component.
   * @optional
   */
  componentDidUpdate: 'DEFINE_MANY',

  /**
   * Invoked when the component is about to be removed from its parent and have
   * its DOM representation destroyed.
   *
   * Use this as an opportunity to deallocate any external resources.
   *
   * NOTE: There is no `componentDidUnmount` since your component will have been
   * destroyed by that point.
   *
   * @optional
   */
  componentWillUnmount: 'DEFINE_MANY',

  // ==== Advanced methods ====

  /**
   * Updates the component's currently mounted DOM representation.
   *
   * By default, this implements React's rendering and reconciliation algorithm.
   * Sophisticated clients may wish to override this.
   *
   * @param {ReactReconcileTransaction} transaction
   * @internal
   * @overridable
   */
  updateComponent: 'OVERRIDE_BASE'

};

/**
 * Mapping from class specification keys to special processing functions.
 *
 * Although these are declared like instance properties in the specification
 * when defining classes using `React.createClass`, they are actually static
 * and are accessible on the constructor instead of the prototype. Despite
 * being static, they must be defined outside of the "statics" key under
 * which all other static methods are defined.
 */
var RESERVED_SPEC_KEYS = {
  displayName: function (Constructor, displayName) {
    Constructor.displayName = displayName;
  },
  mixins: function (Constructor, mixins) {
    if (mixins) {
      for (var i = 0; i < mixins.length; i++) {
        mixSpecIntoComponent(Constructor, mixins[i]);
      }
    }
  },
  childContextTypes: function (Constructor, childContextTypes) {
    if (__DEV__) {
      validateTypeDef(Constructor, childContextTypes, 'child context');
    }
    Constructor.childContextTypes = Object.assign({}, Constructor.childContextTypes, childContextTypes);
  },
  contextTypes: function (Constructor, contextTypes) {
    if (__DEV__) {
      validateTypeDef(Constructor, contextTypes, 'context');
    }
    Constructor.contextTypes = Object.assign({}, Constructor.contextTypes, contextTypes);
  },
  /**
   * Special case getDefaultProps which should move into statics but requires
   * automatic merging.
   */
  getDefaultProps: function (Constructor, getDefaultProps) {
    if (Constructor.getDefaultProps) {
      Constructor.getDefaultProps = createMergedResultFunction(Constructor.getDefaultProps, getDefaultProps);
    } else {
      Constructor.getDefaultProps = getDefaultProps;
    }
  },
  propTypes: function (Constructor, propTypes) {
    if (__DEV__) {
      validateTypeDef(Constructor, propTypes, 'prop');
    }
    Constructor.propTypes = Object.assign({}, Constructor.propTypes, propTypes);
  },
  statics: function (Constructor, statics) {
    mixStaticSpecIntoComponent(Constructor, statics);
  },
  autobind: function () {} };

function validateTypeDef(Constructor, typeDef, location) {
  for (var propName in typeDef) {
    if (typeDef.hasOwnProperty(propName)) {
      // use a warning instead of an invariant so components
      // don't show up in prod but only in __DEV__
      warning$5(typeof typeDef[propName] === 'function', '%s: %s type `%s` is invalid; it must be a function, usually from ' + 'React.PropTypes.', Constructor.displayName || 'ReactClass', location, propName);
    }
  }
}

function validateMethodOverride(isAlreadyDefined, name) {
  var specPolicy = ReactClassInterface.hasOwnProperty(name) ? ReactClassInterface[name] : null;

  // Disallow overriding of base class methods unless explicitly allowed.
  if (ReactClassMixin.hasOwnProperty(name)) {
    invariant$3(specPolicy === 'OVERRIDE_BASE', 'ReactClassInterface: You are attempting to override ' + '`%s` from your class specification. Ensure that your method names ' + 'do not overlap with React methods.', name);
  }

  // Disallow defining methods more than once unless explicitly allowed.
  if (isAlreadyDefined) {
    invariant$3(specPolicy === 'DEFINE_MANY' || specPolicy === 'DEFINE_MANY_MERGED', 'ReactClassInterface: You are attempting to define ' + '`%s` on your component more than once. This conflict may be due ' + 'to a mixin.', name);
  }
}

/**
 * Mixin helper which handles policy validation and reserved
 * specification keys when building React classes.
 */
function mixSpecIntoComponent(Constructor, spec) {
  if (!spec) {
    if (__DEV__) {
      var typeofSpec = typeof spec;
      var isMixinValid = typeofSpec === 'object' && spec !== null;

      warning$5(isMixinValid, '%s: You\'re attempting to include a mixin that is either null ' + 'or not an object. Check the mixins included by the component, ' + 'as well as any mixins they include themselves. ' + 'Expected object but got %s.', Constructor.displayName || 'ReactClass', spec === null ? null : typeofSpec);
    }

    return;
  }

  invariant$3(typeof spec !== 'function', 'ReactClass: You\'re attempting to ' + 'use a component class or function as a mixin. Instead, just use a ' + 'regular object.');
  invariant$3(!ReactElement$3.isValidElement(spec), 'ReactClass: You\'re attempting to ' + 'use a component as a mixin. Instead, just use a regular object.');

  var proto = Constructor.prototype;
  var autoBindPairs = proto.__reactAutoBindPairs;

  // By handling mixins before any other properties, we ensure the same
  // chaining order is applied to methods with DEFINE_MANY policy, whether
  // mixins are listed before or after these methods in the spec.
  if (spec.hasOwnProperty(MIXINS_KEY)) {
    RESERVED_SPEC_KEYS.mixins(Constructor, spec.mixins);
  }

  for (var name in spec) {
    if (!spec.hasOwnProperty(name)) {
      continue;
    }

    if (name === MIXINS_KEY) {
      // We have already handled mixins in a special case above.
      continue;
    }

    var property = spec[name];
    var isAlreadyDefined = proto.hasOwnProperty(name);
    validateMethodOverride(isAlreadyDefined, name);

    if (RESERVED_SPEC_KEYS.hasOwnProperty(name)) {
      RESERVED_SPEC_KEYS[name](Constructor, property);
    } else {
      // Setup methods on prototype:
      // The following member methods should not be automatically bound:
      // 1. Expected ReactClass methods (in the "interface").
      // 2. Overridden methods (that were mixed in).
      var isReactClassMethod = ReactClassInterface.hasOwnProperty(name);
      var isFunction = typeof property === 'function';
      var shouldAutoBind = isFunction && !isReactClassMethod && !isAlreadyDefined && spec.autobind !== false;

      if (shouldAutoBind) {
        autoBindPairs.push(name, property);
        proto[name] = property;
      } else {
        if (isAlreadyDefined) {
          var specPolicy = ReactClassInterface[name];

          // These cases should already be caught by validateMethodOverride.
          invariant$3(isReactClassMethod && (specPolicy === 'DEFINE_MANY_MERGED' || specPolicy === 'DEFINE_MANY'), 'ReactClass: Unexpected spec policy %s for key %s ' + 'when mixing in component specs.', specPolicy, name);

          // For methods which are defined more than once, call the existing
          // methods before calling the new property, merging if appropriate.
          if (specPolicy === 'DEFINE_MANY_MERGED') {
            proto[name] = createMergedResultFunction(proto[name], property);
          } else if (specPolicy === 'DEFINE_MANY') {
            proto[name] = createChainedFunction(proto[name], property);
          }
        } else {
          proto[name] = property;
          if (__DEV__) {
            // Add verbose displayName to the function, which helps when looking
            // at profiling tools.
            if (typeof property === 'function' && spec.displayName) {
              proto[name].displayName = spec.displayName + '_' + name;
            }
          }
        }
      }
    }
  }
}

function mixStaticSpecIntoComponent(Constructor, statics) {
  if (!statics) {
    return;
  }
  for (var name in statics) {
    var property = statics[name];
    if (!statics.hasOwnProperty(name)) {
      continue;
    }

    var isReserved = name in RESERVED_SPEC_KEYS;
    invariant$3(!isReserved, 'ReactClass: You are attempting to define a reserved ' + 'property, `%s`, that shouldn\'t be on the "statics" key. Define it ' + 'as an instance property instead; it will still be accessible on the ' + 'constructor.', name);

    var isInherited = name in Constructor;
    invariant$3(!isInherited, 'ReactClass: You are attempting to define ' + '`%s` on your component more than once. This conflict may be ' + 'due to a mixin.', name);
    Constructor[name] = property;
  }
}

/**
 * Merge two objects, but throw if both contain the same key.
 *
 * @param {object} one The first object, which is mutated.
 * @param {object} two The second object
 * @return {object} one after it has been mutated to contain everything in two.
 */
function mergeIntoWithNoDuplicateKeys(one, two) {
  invariant$3(one && two && typeof one === 'object' && typeof two === 'object', 'mergeIntoWithNoDuplicateKeys(): Cannot merge non-objects.');

  for (var key in two) {
    if (two.hasOwnProperty(key)) {
      invariant$3(one[key] === undefined, 'mergeIntoWithNoDuplicateKeys(): ' + 'Tried to merge two objects with the same key: `%s`. This conflict ' + 'may be due to a mixin; in particular, this may be caused by two ' + 'getInitialState() or getDefaultProps() methods returning objects ' + 'with clashing keys.', key);
      one[key] = two[key];
    }
  }
  return one;
}

/**
 * Creates a function that invokes two functions and merges their return values.
 *
 * @param {function} one Function to invoke first.
 * @param {function} two Function to invoke second.
 * @return {function} Function that invokes the two argument functions.
 * @private
 */
function createMergedResultFunction(one, two) {
  return function mergedResult() {
    var a = one.apply(this, arguments);
    var b = two.apply(this, arguments);
    if (a == null) {
      return b;
    } else if (b == null) {
      return a;
    }
    var c = {};
    mergeIntoWithNoDuplicateKeys(c, a);
    mergeIntoWithNoDuplicateKeys(c, b);
    return c;
  };
}

/**
 * Creates a function that invokes two functions and ignores their return vales.
 *
 * @param {function} one Function to invoke first.
 * @param {function} two Function to invoke second.
 * @return {function} Function that invokes the two argument functions.
 * @private
 */
function createChainedFunction(one, two) {
  return function chainedFunction() {
    one.apply(this, arguments);
    two.apply(this, arguments);
  };
}

/**
 * Binds a method to the component.
 *
 * @param {object} component Component whose method is going to be bound.
 * @param {function} method Method to be bound.
 * @return {function} The bound method.
 */
function bindAutoBindMethod(component, method) {
  var boundMethod = method.bind(component);
  if (__DEV__) {
    boundMethod.__reactBoundContext = component;
    boundMethod.__reactBoundMethod = method;
    boundMethod.__reactBoundArguments = null;
    var componentName = component.constructor.displayName;
    var _bind = boundMethod.bind;
    boundMethod.bind = function (newThis) {
      for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
        args[_key - 1] = arguments[_key];
      }

      // User is trying to bind() an autobound method; we effectively will
      // ignore the value of "this" that the user is trying to use, so
      // let's warn.
      if (newThis !== component && newThis !== null) {
        warning$5(false, 'bind(): React component methods may only be bound to the ' + 'component instance.\n\nSee %s', componentName);
      } else if (!args.length) {
        warning$5(false, 'bind(): You are binding a component method to the component. ' + 'React does this for you automatically in a high-performance ' + 'way, so you can safely remove this call.\n\nSee %s', componentName);
        return boundMethod;
      }
      var reboundMethod = _bind.apply(boundMethod, arguments);
      reboundMethod.__reactBoundContext = component;
      reboundMethod.__reactBoundMethod = method;
      reboundMethod.__reactBoundArguments = args;
      return reboundMethod;
    };
  }
  return boundMethod;
}

/**
 * Binds all auto-bound methods in a component.
 *
 * @param {object} component Component whose method is going to be bound.
 */
function bindAutoBindMethods(component) {
  var pairs = component.__reactAutoBindPairs;
  for (var i = 0; i < pairs.length; i += 2) {
    var autoBindKey = pairs[i];
    var method = pairs[i + 1];
    component[autoBindKey] = bindAutoBindMethod(component, method);
  }
}

/**
 * Add more to the ReactClass base class. These are all legacy features and
 * therefore not already part of the modern ReactComponent.
 */
var ReactClassMixin = {

  /**
   * TODO: This will be deprecated because state should always keep a consistent
   * type signature and the only use case for this, is to avoid that.
   */
  replaceState: function (newState, callback) {
    this.updater.enqueueReplaceState(this, newState, callback, 'replaceState');
  },

  /**
   * Checks whether or not this composite component is mounted.
   * @return {boolean} True if mounted, false otherwise.
   * @protected
   * @final
   */
  isMounted: function () {
    return this.updater.isMounted(this);
  }
};

var ReactClassComponent = function () {};
Object.assign(ReactClassComponent.prototype, ReactComponent$1.prototype, ReactClassMixin);

/**
 * Module for creating composite components.
 *
 * @class ReactClass
 */
var ReactClass$1 = {

  /**
   * Creates a composite component class given a class specification.
   * See https://facebook.github.io/react/docs/react-api.html#createclass
   *
   * @param {object} spec Class specification (which must define `render`).
   * @return {function} Component constructor function.
   * @public
   */
  createClass: function (spec) {
    // To keep our warnings more understandable, we'll use a little hack here to
    // ensure that Constructor.name !== 'Constructor'. This makes sure we don't
    // unnecessarily identify a class without displayName as 'Constructor'.
    var Constructor = identity(function (props, context, updater) {
      // This constructor gets overridden by mocks. The argument is used
      // by mocks to assert on what gets mounted.

      if (__DEV__) {
        warning$5(this instanceof Constructor, 'Something is calling a React component directly. Use a factory or ' + 'JSX instead. See: https://fb.me/react-legacyfactory');
      }

      // Wire up auto-binding
      if (this.__reactAutoBindPairs.length) {
        bindAutoBindMethods(this);
      }

      this.props = props;
      this.context = context;
      this.refs = emptyObject$2;
      this.updater = updater || ReactNoopUpdateQueue$2;

      this.state = null;

      // ReactClasses doesn't have constructors. Instead, they use the
      // getInitialState and componentWillMount methods for initialization.

      var initialState = this.getInitialState ? this.getInitialState() : null;
      if (__DEV__) {
        // We allow auto-mocks to proceed as if they're returning null.
        if (initialState === undefined && this.getInitialState._isMockFunction) {
          // This is probably bad practice. Consider warning here and
          // deprecating this convenience.
          initialState = null;
        }
      }
      invariant$3(typeof initialState === 'object' && !Array.isArray(initialState), '%s.getInitialState(): must return an object or null', Constructor.displayName || 'ReactCompositeComponent');

      this.state = initialState;
    });
    Constructor.prototype = new ReactClassComponent();
    Constructor.prototype.constructor = Constructor;
    Constructor.prototype.__reactAutoBindPairs = [];

    mixSpecIntoComponent(Constructor, spec);

    // Initialize the defaultProps property after all mixins have been merged.
    if (Constructor.getDefaultProps) {
      Constructor.defaultProps = Constructor.getDefaultProps();
    }

    if (__DEV__) {
      // This is a tag to indicate that the use of these method names is ok,
      // since it's used with createClass. If it's not, then it's likely a
      // mistake so we'll warn you to use the static property, property
      // initializer or constructor respectively.
      if (Constructor.getDefaultProps) {
        Constructor.getDefaultProps.isReactClassApproved = {};
      }
      if (Constructor.prototype.getInitialState) {
        Constructor.prototype.getInitialState.isReactClassApproved = {};
      }
    }

    invariant$3(Constructor.prototype.render, 'createClass(...): Class specification must implement a `render` method.');

    if (__DEV__) {
      warning$5(!Constructor.prototype.componentShouldUpdate, '%s has a method called ' + 'componentShouldUpdate(). Did you mean shouldComponentUpdate()? ' + 'The name is phrased as a question because the function is ' + 'expected to return a value.', spec.displayName || 'A component');
      warning$5(!Constructor.prototype.componentWillRecieveProps, '%s has a method called ' + 'componentWillRecieveProps(). Did you mean componentWillReceiveProps()?', spec.displayName || 'A component');
    }

    // Reduce time spent doing lookups by setting these on the prototype.
    for (var methodName in ReactClassInterface) {
      if (!Constructor.prototype[methodName]) {
        Constructor.prototype[methodName] = null;
      }
    }

    return Constructor;
  }

};

var ReactClass_1 = ReactClass$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactTypeOfWork
 *
 */

var ReactTypeOfWork$1 = {
  IndeterminateComponent: 0, // Before we know whether it is functional or class
  FunctionalComponent: 1,
  ClassComponent: 2,
  HostRoot: 3, // Root of a host tree. Could be nested inside another node.
  HostPortal: 4, // A subtree. Could be an entry point to a different renderer.
  HostComponent: 5,
  HostText: 6,
  CoroutineComponent: 7,
  CoroutineHandlerPhase: 8,
  YieldComponent: 9,
  Fragment: 10
};

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 *
 * @providesModule getComponentName
 */

function getComponentName$2(instanceOrFiber) {
  if (typeof instanceOrFiber.getName === 'function') {
    // Stack reconciler
    var instance = instanceOrFiber;
    return instance.getName();
  }
  if (typeof instanceOrFiber.tag === 'number') {
    // Fiber reconciler
    var fiber = instanceOrFiber;
    var type = fiber.type;

    if (typeof type === 'string') {
      return type;
    }
    if (typeof type === 'function') {
      return type.displayName || type.name;
    }
  }
  return null;
}

var getComponentName_1 = getComponentName$2;

var ReactCurrentOwner$4 = ReactCurrentOwner_1;
var ReactTypeOfWork = ReactTypeOfWork$1;
var IndeterminateComponent = ReactTypeOfWork.IndeterminateComponent;
var FunctionalComponent = ReactTypeOfWork.FunctionalComponent;
var ClassComponent = ReactTypeOfWork.ClassComponent;
var HostComponent = ReactTypeOfWork.HostComponent;


var getComponentName$1 = getComponentName_1;
var invariant$4 = invariant;
var warning$7 = warning;

function isNative(fn) {
  // Based on isNative() from Lodash
  var funcToString = Function.prototype.toString;
  var hasOwnProperty = Object.prototype.hasOwnProperty;
  var reIsNative = RegExp('^' + funcToString
  // Take an example native function source for comparison
  .call(hasOwnProperty)
  // Strip regex characters so we can use it for regex
  .replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
  // Remove hasOwnProperty from the template to make it generic
  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$');
  try {
    var source = funcToString.call(fn);
    return reIsNative.test(source);
  } catch (err) {
    return false;
  }
}

var canUseCollections =
// Array.from
typeof Array.from === 'function' &&
// Map
typeof Map === 'function' && isNative(Map) &&
// Map.prototype.keys
Map.prototype != null && typeof Map.prototype.keys === 'function' && isNative(Map.prototype.keys) &&
// Set
typeof Set === 'function' && isNative(Set) &&
// Set.prototype.keys
Set.prototype != null && typeof Set.prototype.keys === 'function' && isNative(Set.prototype.keys);

var setItem;
var getItem;
var removeItem;
var getItemIDs;
var addRoot;
var removeRoot;
var getRootIDs;

if (canUseCollections) {
  var itemMap = new Map();
  var rootIDSet = new Set();

  setItem = function (id, item) {
    itemMap.set(id, item);
  };
  getItem = function (id) {
    return itemMap.get(id);
  };
  removeItem = function (id) {
    itemMap['delete'](id);
  };
  getItemIDs = function () {
    return Array.from(itemMap.keys());
  };

  addRoot = function (id) {
    rootIDSet.add(id);
  };
  removeRoot = function (id) {
    rootIDSet['delete'](id);
  };
  getRootIDs = function () {
    return Array.from(rootIDSet.keys());
  };
} else {
  var itemByKey = {};
  var rootByKey = {};

  // Use non-numeric keys to prevent V8 performance issues:
  // https://github.com/facebook/react/pull/7232
  var getKeyFromID = function (id) {
    return '.' + id;
  };
  var getIDFromKey = function (key) {
    return parseInt(key.substr(1), 10);
  };

  setItem = function (id, item) {
    var key = getKeyFromID(id);
    itemByKey[key] = item;
  };
  getItem = function (id) {
    var key = getKeyFromID(id);
    return itemByKey[key];
  };
  removeItem = function (id) {
    var key = getKeyFromID(id);
    delete itemByKey[key];
  };
  getItemIDs = function () {
    return Object.keys(itemByKey).map(getIDFromKey);
  };

  addRoot = function (id) {
    var key = getKeyFromID(id);
    rootByKey[key] = true;
  };
  removeRoot = function (id) {
    var key = getKeyFromID(id);
    delete rootByKey[key];
  };
  getRootIDs = function () {
    return Object.keys(rootByKey).map(getIDFromKey);
  };
}

var unmountedIDs = [];

function purgeDeep(id) {
  var item = getItem(id);
  if (item) {
    var childIDs = item.childIDs;

    removeItem(id);
    childIDs.forEach(purgeDeep);
  }
}

function describeComponentFrame(name, source, ownerName) {
  return '\n    in ' + (name || 'Unknown') + (source ? ' (at ' + source.fileName.replace(/^.*[\\\/]/, '') + ':' + source.lineNumber + ')' : ownerName ? ' (created by ' + ownerName + ')' : '');
}

function getDisplayName(element) {
  if (element == null) {
    return '#empty';
  } else if (typeof element === 'string' || typeof element === 'number') {
    return '#text';
  } else if (typeof element.type === 'string') {
    return element.type;
  } else {
    return element.type.displayName || element.type.name || 'Unknown';
  }
}

function describeID(id) {
  var name = ReactComponentTreeHook$1.getDisplayName(id);
  var element = ReactComponentTreeHook$1.getElement(id);
  var ownerID = ReactComponentTreeHook$1.getOwnerID(id);
  var ownerName;
  if (ownerID) {
    ownerName = ReactComponentTreeHook$1.getDisplayName(ownerID);
  }
  warning$7(element, 'ReactComponentTreeHook: Missing React element for debugID %s when ' + 'building stack', id);
  return describeComponentFrame(name, element && element._source, ownerName);
}

function describeFiber(fiber) {
  switch (fiber.tag) {
    case IndeterminateComponent:
    case FunctionalComponent:
    case ClassComponent:
    case HostComponent:
      var owner = fiber._debugOwner;
      var source = fiber._debugSource;
      var name = getComponentName$1(fiber);
      var ownerName = null;
      if (owner) {
        ownerName = getComponentName$1(owner);
      }
      return describeComponentFrame(name, source, ownerName);
    default:
      return '';
  }
}

var ReactComponentTreeHook$1 = {
  onSetChildren: function (id, nextChildIDs) {
    var item = getItem(id);
    invariant$4(item, 'Item must have been set');
    item.childIDs = nextChildIDs;

    for (var i = 0; i < nextChildIDs.length; i++) {
      var nextChildID = nextChildIDs[i];
      var nextChild = getItem(nextChildID);
      invariant$4(nextChild, 'Expected hook events to fire for the child ' + 'before its parent includes it in onSetChildren().');
      invariant$4(nextChild.childIDs != null || typeof nextChild.element !== 'object' || nextChild.element == null, 'Expected onSetChildren() to fire for a container child ' + 'before its parent includes it in onSetChildren().');
      invariant$4(nextChild.isMounted, 'Expected onMountComponent() to fire for the child ' + 'before its parent includes it in onSetChildren().');
      if (nextChild.parentID == null) {
        nextChild.parentID = id;
        // TODO: This shouldn't be necessary but mounting a new root during in
        // componentWillMount currently causes not-yet-mounted components to
        // be purged from our tree data so their parent id is missing.
      }
      invariant$4(nextChild.parentID === id, 'Expected onBeforeMountComponent() parent and onSetChildren() to ' + 'be consistent (%s has parents %s and %s).', nextChildID, nextChild.parentID, id);
    }
  },
  onBeforeMountComponent: function (id, element, parentID) {
    var item = {
      element: element,
      parentID: parentID,
      text: null,
      childIDs: [],
      isMounted: false,
      updateCount: 0
    };
    setItem(id, item);
  },
  onBeforeUpdateComponent: function (id, element) {
    var item = getItem(id);
    if (!item || !item.isMounted) {
      // We may end up here as a result of setState() in componentWillUnmount().
      // In this case, ignore the element.
      return;
    }
    item.element = element;
  },
  onMountComponent: function (id) {
    var item = getItem(id);
    invariant$4(item, 'Item must have been set');
    item.isMounted = true;
    var isRoot = item.parentID === 0;
    if (isRoot) {
      addRoot(id);
    }
  },
  onUpdateComponent: function (id) {
    var item = getItem(id);
    if (!item || !item.isMounted) {
      // We may end up here as a result of setState() in componentWillUnmount().
      // In this case, ignore the element.
      return;
    }
    item.updateCount++;
  },
  onUnmountComponent: function (id) {
    var item = getItem(id);
    if (item) {
      // We need to check if it exists.
      // `item` might not exist if it is inside an error boundary, and a sibling
      // error boundary child threw while mounting. Then this instance never
      // got a chance to mount, but it still gets an unmounting event during
      // the error boundary cleanup.
      item.isMounted = false;
      var isRoot = item.parentID === 0;
      if (isRoot) {
        removeRoot(id);
      }
    }
    unmountedIDs.push(id);
  },
  purgeUnmountedComponents: function () {
    if (ReactComponentTreeHook$1._preventPurging) {
      // Should only be used for testing.
      return;
    }

    for (var i = 0; i < unmountedIDs.length; i++) {
      var id = unmountedIDs[i];
      purgeDeep(id);
    }
    unmountedIDs.length = 0;
  },
  isMounted: function (id) {
    var item = getItem(id);
    return item ? item.isMounted : false;
  },
  getCurrentStackAddendum: function (topElement) {
    var info = '';
    if (topElement) {
      var name = getDisplayName(topElement);
      var owner = topElement._owner;
      info += describeComponentFrame(name, topElement._source, owner && getComponentName$1(owner));
    }

    var currentOwner = ReactCurrentOwner$4.current;
    if (currentOwner) {
      if (typeof currentOwner.tag === 'number') {
        var workInProgress = currentOwner;
        // Safe because if current owner exists, we are reconciling,
        // and it is guaranteed to be the work-in-progress version.
        info += ReactComponentTreeHook$1.getStackAddendumByWorkInProgressFiber(workInProgress);
      } else if (typeof currentOwner._debugID === 'number') {
        info += ReactComponentTreeHook$1.getStackAddendumByID(currentOwner._debugID);
      }
    }
    return info;
  },
  getStackAddendumByID: function (id) {
    var info = '';
    while (id) {
      info += describeID(id);
      id = ReactComponentTreeHook$1.getParentID(id);
    }
    return info;
  },


  // This function can only be called with a work-in-progress fiber and
  // only during begin or complete phase. Do not call it under any other
  // circumstances.
  getStackAddendumByWorkInProgressFiber: function (workInProgress) {
    var info = '';
    var node = workInProgress;
    do {
      info += describeFiber(node);
      // Otherwise this return pointer might point to the wrong tree:
      node = node['return'];
    } while (node);
    return info;
  },
  getChildIDs: function (id) {
    var item = getItem(id);
    return item ? item.childIDs : [];
  },
  getDisplayName: function (id) {
    var element = ReactComponentTreeHook$1.getElement(id);
    if (!element) {
      return null;
    }
    return getDisplayName(element);
  },
  getElement: function (id) {
    var item = getItem(id);
    return item ? item.element : null;
  },
  getOwnerID: function (id) {
    var element = ReactComponentTreeHook$1.getElement(id);
    if (!element || !element._owner) {
      return null;
    }
    return element._owner._debugID;
  },
  getParentID: function (id) {
    var item = getItem(id);
    return item ? item.parentID : null;
  },
  getSource: function (id) {
    var item = getItem(id);
    var element = item ? item.element : null;
    var source = element != null ? element._source : null;
    return source;
  },
  getText: function (id) {
    var element = ReactComponentTreeHook$1.getElement(id);
    if (typeof element === 'string') {
      return element;
    } else if (typeof element === 'number') {
      return '' + element;
    } else {
      return null;
    }
  },
  getUpdateCount: function (id) {
    var item = getItem(id);
    return item ? item.updateCount : 0;
  },


  getRootIDs: getRootIDs,
  getRegisteredIDs: getItemIDs
};

var ReactComponentTreeHook_1 = ReactComponentTreeHook$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 *
 * @providesModule ReactPropTypesSecret
 */

var ReactPropTypesSecret$1 = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';

var ReactPropTypesSecret_1 = ReactPropTypesSecret$1;

var ReactPropTypesSecret = ReactPropTypesSecret_1;

var invariant$5 = invariant;
var warning$8 = warning;

var loggedTypeFailures = {};

/**
 * Assert that the values match with the type specs.
 * Error messages are memorized and will only be shown once.
 *
 * @param {object} typeSpecs Map of name to a ReactPropType
 * @param {object} values Runtime values that need to be type-checked
 * @param {string} location e.g. "prop", "context", "child context"
 * @param {string} componentName Name of the component for error messages.
 * @param {?Function} getStack Returns the component stack.
 * @private
 */
function checkPropTypes$2(typeSpecs, values, location, componentName, getStack) {
  if (__DEV__) {
    for (var typeSpecName in typeSpecs) {
      if (typeSpecs.hasOwnProperty(typeSpecName)) {
        var error;
        // Prop type validation may throw. In case they do, we don't want to
        // fail the render phase where it didn't fail before. So we log it.
        // After these have been cleaned up, we'll let them throw.
        try {
          // This is intentionally an invariant that gets caught. It's the same
          // behavior as without this statement except with a better message.
          invariant$5(typeof typeSpecs[typeSpecName] === 'function', '%s: %s type `%s` is invalid; it must be a function, usually from ' + 'React.PropTypes.', componentName || 'React class', location, typeSpecName);
          error = typeSpecs[typeSpecName](values, typeSpecName, componentName, location, null, ReactPropTypesSecret);
        } catch (ex) {
          error = ex;
        }
        warning$8(!error || error instanceof Error, '%s: type specification of %s `%s` is invalid; the type checker ' + 'function must return `null` or an `Error` but returned a %s. ' + 'You may have forgotten to pass an argument to the type checker ' + 'creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and ' + 'shape all require an argument).', componentName || 'React class', location, typeSpecName, typeof error);
        if (error instanceof Error && !(error.message in loggedTypeFailures)) {
          // Only monitor this failure once because there tends to be a lot of the
          // same error.
          loggedTypeFailures[error.message] = true;

          var stack = getStack ? getStack() : '';

          warning$8(false, 'Failed %s type: %s%s', location, error.message, stack != null ? stack : '');
        }
      }
    }
  }
}

var checkPropTypes_1 = checkPropTypes$2;

var ReactDebugCurrentFrame$1 = {};

if (__DEV__) {
  var _require$1 = ReactComponentTreeHook_1,
      getStackAddendumByID = _require$1.getStackAddendumByID,
      getStackAddendumByWorkInProgressFiber = _require$1.getStackAddendumByWorkInProgressFiber,
      getCurrentStackAddendum = _require$1.getCurrentStackAddendum;

  // Component that is being worked on


  ReactDebugCurrentFrame$1.current = null;

  // Element that is being cloned or created
  ReactDebugCurrentFrame$1.element = null;

  ReactDebugCurrentFrame$1.getStackAddendum = function () {
    var stack = null;
    var current = ReactDebugCurrentFrame$1.current;
    var element = ReactDebugCurrentFrame$1.element;
    if (current !== null) {
      if (typeof current === 'number') {
        // DebugID from Stack.
        var debugID = current;
        stack = getStackAddendumByID(debugID);
      } else if (typeof current.tag === 'number') {
        // This is a Fiber.
        // The stack will only be correct if this is a work in progress
        // version and we're calling it during reconciliation.
        var workInProgress = current;
        stack = getStackAddendumByWorkInProgressFiber(workInProgress);
      }
    } else if (element !== null) {
      stack = getCurrentStackAddendum(element);
    }
    return stack;
  };
}

var ReactDebugCurrentFrame_1 = ReactDebugCurrentFrame$1;

var checkPropTypes$1 = checkPropTypes_1;

var _require = ReactDebugCurrentFrame_1;
var getStackAddendum = _require.getStackAddendum;

function checkReactTypeSpec$1(typeSpecs, values, location, componentName) {
  checkPropTypes$1(typeSpecs, values, location, componentName, getStackAddendum);
}

var checkReactTypeSpec_1 = checkReactTypeSpec$1;

var ReactCurrentOwner$3 = ReactCurrentOwner_1;
var ReactComponentTreeHook = ReactComponentTreeHook_1;
var ReactElement$5 = ReactElement_1;

var checkReactTypeSpec = checkReactTypeSpec_1;

var canDefineProperty$3 = canDefineProperty_1;
var getComponentName = getComponentName_1;
var getIteratorFn$2 = getIteratorFn_1;

if (__DEV__) {
  var warning$6 = warning;
  var ReactDebugCurrentFrame = ReactDebugCurrentFrame_1;
}

function getDeclarationErrorAddendum() {
  if (ReactCurrentOwner$3.current) {
    var name = getComponentName(ReactCurrentOwner$3.current);
    if (name) {
      return '\n\nCheck the render method of `' + name + '`.';
    }
  }
  return '';
}

function getSourceInfoErrorAddendum(elementProps) {
  if (elementProps !== null && elementProps !== undefined && elementProps.__source !== undefined) {
    var source = elementProps.__source;
    var fileName = source.fileName.replace(/^.*[\\\/]/, '');
    var lineNumber = source.lineNumber;
    return '\n\nCheck your code at ' + fileName + ':' + lineNumber + '.';
  }
  return '';
}

/**
 * Warn if there's no key explicitly set on dynamic arrays of children or
 * object keys are not valid. This allows us to keep track of children between
 * updates.
 */
var ownerHasKeyUseWarning = {};

function getCurrentComponentErrorInfo(parentType) {
  var info = getDeclarationErrorAddendum();

  if (!info) {
    var parentName = typeof parentType === 'string' ? parentType : parentType.displayName || parentType.name;
    if (parentName) {
      info = '\n\nCheck the top-level render call using <' + parentName + '>.';
    }
  }
  return info;
}

/**
 * Warn if the element doesn't have an explicit key assigned to it.
 * This element is in an array. The array could grow and shrink or be
 * reordered. All children that haven't already been validated are required to
 * have a "key" property assigned to it. Error statuses are cached so a warning
 * will only be shown once.
 *
 * @internal
 * @param {ReactElement} element Element that requires a key.
 * @param {*} parentType element's parent's type.
 */
function validateExplicitKey(element, parentType) {
  if (!element._store || element._store.validated || element.key != null) {
    return;
  }
  element._store.validated = true;

  var memoizer = ownerHasKeyUseWarning.uniqueKey || (ownerHasKeyUseWarning.uniqueKey = {});

  var currentComponentErrorInfo = getCurrentComponentErrorInfo(parentType);
  if (memoizer[currentComponentErrorInfo]) {
    return;
  }
  memoizer[currentComponentErrorInfo] = true;

  // Usually the current owner is the offender, but if it accepts children as a
  // property, it may be the creator of the child that's responsible for
  // assigning it a key.
  var childOwner = '';
  if (element && element._owner && element._owner !== ReactCurrentOwner$3.current) {
    // Give the component that originally created this child.
    childOwner = ' It was passed a child from ' + getComponentName(element._owner) + '.';
  }

  warning$6(false, 'Each child in an array or iterator should have a unique "key" prop.' + '%s%s See https://fb.me/react-warning-keys for more information.%s', currentComponentErrorInfo, childOwner, ReactComponentTreeHook.getCurrentStackAddendum(element));
}

/**
 * Ensure that every element either is passed in a static location, in an
 * array with an explicit keys property defined, or in an object literal
 * with valid key property.
 *
 * @internal
 * @param {ReactNode} node Statically passed child of any type.
 * @param {*} parentType node's parent's type.
 */
function validateChildKeys(node, parentType) {
  if (typeof node !== 'object') {
    return;
  }
  if (Array.isArray(node)) {
    for (var i = 0; i < node.length; i++) {
      var child = node[i];
      if (ReactElement$5.isValidElement(child)) {
        validateExplicitKey(child, parentType);
      }
    }
  } else if (ReactElement$5.isValidElement(node)) {
    // This element was passed in a valid location.
    if (node._store) {
      node._store.validated = true;
    }
  } else if (node) {
    var iteratorFn = getIteratorFn$2(node);
    // Entry iterators provide implicit keys.
    if (iteratorFn) {
      if (iteratorFn !== node.entries) {
        var iterator = iteratorFn.call(node);
        var step;
        while (!(step = iterator.next()).done) {
          if (ReactElement$5.isValidElement(step.value)) {
            validateExplicitKey(step.value, parentType);
          }
        }
      }
    }
  }
}

/**
 * Given an element, validate that its props follow the propTypes definition,
 * provided by the type.
 *
 * @param {ReactElement} element
 */
function validatePropTypes(element) {
  var componentClass = element.type;
  if (typeof componentClass !== 'function') {
    return;
  }
  var name = componentClass.displayName || componentClass.name;
  if (componentClass.propTypes) {
    checkReactTypeSpec(componentClass.propTypes, element.props, 'prop', name);
  }
  if (typeof componentClass.getDefaultProps === 'function') {
    warning$6(componentClass.getDefaultProps.isReactClassApproved, 'getDefaultProps is only used on classic React.createClass ' + 'definitions. Use a static property named `defaultProps` instead.');
  }
}

var ReactElementValidator$2 = {

  createElement: function (type, props, children) {
    var validType = typeof type === 'string' || typeof type === 'function';
    // We warn in this case but don't throw. We expect the element creation to
    // succeed and there will likely be errors in render.
    if (!validType) {
      var info = '';
      if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
        info += ' You likely forgot to export your component from the file ' + 'it\'s defined in.';
      }

      var sourceInfo = getSourceInfoErrorAddendum(props);
      if (sourceInfo) {
        info += sourceInfo;
      } else {
        info += getDeclarationErrorAddendum();
      }

      info += ReactComponentTreeHook.getCurrentStackAddendum();

      warning$6(false, 'React.createElement: type is invalid -- expected a string (for ' + 'built-in components) or a class/function (for composite ' + 'components) but got: %s.%s', type == null ? type : typeof type, info);
    }

    var element = ReactElement$5.createElement.apply(this, arguments);

    // The result can be nullish if a mock or a custom function is used.
    // TODO: Drop this when these are no longer allowed as the type argument.
    if (element == null) {
      return element;
    }

    if (__DEV__) {
      ReactDebugCurrentFrame.element = element;
    }

    // Skip key warning if the type isn't valid since our key validation logic
    // doesn't expect a non-string/function type and can throw confusing errors.
    // We don't want exception behavior to differ between dev and prod.
    // (Rendering will throw with a helpful message and as soon as the type is
    // fixed, the key warnings will appear.)
    if (validType) {
      for (var i = 2; i < arguments.length; i++) {
        validateChildKeys(arguments[i], type);
      }
    }

    validatePropTypes(element);

    if (__DEV__) {
      ReactDebugCurrentFrame.element = null;
    }

    return element;
  },

  createFactory: function (type) {
    var validatedFactory = ReactElementValidator$2.createElement.bind(null, type);
    // Legacy hook TODO: Warn if this is accessed
    validatedFactory.type = type;

    if (__DEV__) {
      if (canDefineProperty$3) {
        Object.defineProperty(validatedFactory, 'type', {
          enumerable: false,
          get: function () {
            warning$6(false, 'Factory.type is deprecated. Access the class directly ' + 'before passing it to createFactory.');
            Object.defineProperty(this, 'type', {
              value: type
            });
            return type;
          }
        });
      }
    }

    return validatedFactory;
  },

  cloneElement: function (element, props, children) {
    var newElement = ReactElement$5.cloneElement.apply(this, arguments);
    if (__DEV__) {
      ReactDebugCurrentFrame.element = newElement;
    }
    for (var i = 2; i < arguments.length; i++) {
      validateChildKeys(arguments[i], newElement.type);
    }
    validatePropTypes(newElement);
    if (__DEV__) {
      ReactDebugCurrentFrame.element = null;
    }
    return newElement;
  }

};

var ReactElementValidator_1 = ReactElementValidator$2;

var ReactElement$4 = ReactElement_1;

/**
 * Create a factory that creates HTML tag elements.
 *
 * @private
 */
var createDOMFactory = ReactElement$4.createFactory;
if (__DEV__) {
  var ReactElementValidator$1 = ReactElementValidator_1;
  createDOMFactory = ReactElementValidator$1.createFactory;
}

/**
 * Creates a mapping from supported HTML tags to `ReactDOMComponent` classes.
 * This is also accessible via `React.DOM`.
 *
 * @public
 */
var ReactDOMFactories$1 = {
  a: createDOMFactory('a'),
  abbr: createDOMFactory('abbr'),
  address: createDOMFactory('address'),
  area: createDOMFactory('area'),
  article: createDOMFactory('article'),
  aside: createDOMFactory('aside'),
  audio: createDOMFactory('audio'),
  b: createDOMFactory('b'),
  base: createDOMFactory('base'),
  bdi: createDOMFactory('bdi'),
  bdo: createDOMFactory('bdo'),
  big: createDOMFactory('big'),
  blockquote: createDOMFactory('blockquote'),
  body: createDOMFactory('body'),
  br: createDOMFactory('br'),
  button: createDOMFactory('button'),
  canvas: createDOMFactory('canvas'),
  caption: createDOMFactory('caption'),
  cite: createDOMFactory('cite'),
  code: createDOMFactory('code'),
  col: createDOMFactory('col'),
  colgroup: createDOMFactory('colgroup'),
  data: createDOMFactory('data'),
  datalist: createDOMFactory('datalist'),
  dd: createDOMFactory('dd'),
  del: createDOMFactory('del'),
  details: createDOMFactory('details'),
  dfn: createDOMFactory('dfn'),
  dialog: createDOMFactory('dialog'),
  div: createDOMFactory('div'),
  dl: createDOMFactory('dl'),
  dt: createDOMFactory('dt'),
  em: createDOMFactory('em'),
  embed: createDOMFactory('embed'),
  fieldset: createDOMFactory('fieldset'),
  figcaption: createDOMFactory('figcaption'),
  figure: createDOMFactory('figure'),
  footer: createDOMFactory('footer'),
  form: createDOMFactory('form'),
  h1: createDOMFactory('h1'),
  h2: createDOMFactory('h2'),
  h3: createDOMFactory('h3'),
  h4: createDOMFactory('h4'),
  h5: createDOMFactory('h5'),
  h6: createDOMFactory('h6'),
  head: createDOMFactory('head'),
  header: createDOMFactory('header'),
  hgroup: createDOMFactory('hgroup'),
  hr: createDOMFactory('hr'),
  html: createDOMFactory('html'),
  i: createDOMFactory('i'),
  iframe: createDOMFactory('iframe'),
  img: createDOMFactory('img'),
  input: createDOMFactory('input'),
  ins: createDOMFactory('ins'),
  kbd: createDOMFactory('kbd'),
  keygen: createDOMFactory('keygen'),
  label: createDOMFactory('label'),
  legend: createDOMFactory('legend'),
  li: createDOMFactory('li'),
  link: createDOMFactory('link'),
  main: createDOMFactory('main'),
  map: createDOMFactory('map'),
  mark: createDOMFactory('mark'),
  menu: createDOMFactory('menu'),
  menuitem: createDOMFactory('menuitem'),
  meta: createDOMFactory('meta'),
  meter: createDOMFactory('meter'),
  nav: createDOMFactory('nav'),
  noscript: createDOMFactory('noscript'),
  object: createDOMFactory('object'),
  ol: createDOMFactory('ol'),
  optgroup: createDOMFactory('optgroup'),
  option: createDOMFactory('option'),
  output: createDOMFactory('output'),
  p: createDOMFactory('p'),
  param: createDOMFactory('param'),
  picture: createDOMFactory('picture'),
  pre: createDOMFactory('pre'),
  progress: createDOMFactory('progress'),
  q: createDOMFactory('q'),
  rp: createDOMFactory('rp'),
  rt: createDOMFactory('rt'),
  ruby: createDOMFactory('ruby'),
  s: createDOMFactory('s'),
  samp: createDOMFactory('samp'),
  script: createDOMFactory('script'),
  section: createDOMFactory('section'),
  select: createDOMFactory('select'),
  small: createDOMFactory('small'),
  source: createDOMFactory('source'),
  span: createDOMFactory('span'),
  strong: createDOMFactory('strong'),
  style: createDOMFactory('style'),
  sub: createDOMFactory('sub'),
  summary: createDOMFactory('summary'),
  sup: createDOMFactory('sup'),
  table: createDOMFactory('table'),
  tbody: createDOMFactory('tbody'),
  td: createDOMFactory('td'),
  textarea: createDOMFactory('textarea'),
  tfoot: createDOMFactory('tfoot'),
  th: createDOMFactory('th'),
  thead: createDOMFactory('thead'),
  time: createDOMFactory('time'),
  title: createDOMFactory('title'),
  tr: createDOMFactory('tr'),
  track: createDOMFactory('track'),
  u: createDOMFactory('u'),
  ul: createDOMFactory('ul'),
  'var': createDOMFactory('var'),
  video: createDOMFactory('video'),
  wbr: createDOMFactory('wbr'),

  // SVG
  circle: createDOMFactory('circle'),
  clipPath: createDOMFactory('clipPath'),
  defs: createDOMFactory('defs'),
  ellipse: createDOMFactory('ellipse'),
  g: createDOMFactory('g'),
  image: createDOMFactory('image'),
  line: createDOMFactory('line'),
  linearGradient: createDOMFactory('linearGradient'),
  mask: createDOMFactory('mask'),
  path: createDOMFactory('path'),
  pattern: createDOMFactory('pattern'),
  polygon: createDOMFactory('polygon'),
  polyline: createDOMFactory('polyline'),
  radialGradient: createDOMFactory('radialGradient'),
  rect: createDOMFactory('rect'),
  stop: createDOMFactory('stop'),
  svg: createDOMFactory('svg'),
  text: createDOMFactory('text'),
  tspan: createDOMFactory('tspan')
};

var ReactDOMFactories_1 = ReactDOMFactories$1;

var ReactElement$6 = ReactElement_1;
var ReactPropTypesSecret$2 = ReactPropTypesSecret_1;

var emptyFunction$2 = emptyFunction;
var getIteratorFn$3 = getIteratorFn_1;
var invariant$6 = invariant;
var warning$9 = warning;

/**
 * Collection of methods that allow declaration and validation of props that are
 * supplied to React components. Example usage:
 *
 *   var Props = require('ReactPropTypes');
 *   var MyArticle = React.createClass({
 *     propTypes: {
 *       // An optional string prop named "description".
 *       description: Props.string,
 *
 *       // A required enum prop named "category".
 *       category: Props.oneOf(['News','Photos']).isRequired,
 *
 *       // A prop named "dialog" that requires an instance of Dialog.
 *       dialog: Props.instanceOf(Dialog).isRequired
 *     },
 *     render: function() { ... }
 *   });
 *
 * A more formal specification of how these methods are used:
 *
 *   type := array|bool|func|object|number|string|oneOf([...])|instanceOf(...)
 *   decl := ReactPropTypes.{type}(.isRequired)?
 *
 * Each and every declaration produces a function with the same signature. This
 * allows the creation of custom validation functions. For example:
 *
 *  var MyLink = React.createClass({
 *    propTypes: {
 *      // An optional string or URI prop named "href".
 *      href: function(props, propName, componentName) {
 *        var propValue = props[propName];
 *        if (propValue != null && typeof propValue !== 'string' &&
 *            !(propValue instanceof URI)) {
 *          return new Error(
 *            'Expected a string or an URI for ' + propName + ' in ' +
 *            componentName
 *          );
 *        }
 *      }
 *    },
 *    render: function() {...}
 *  });
 *
 * @internal
 */

var ANONYMOUS = '<<anonymous>>';

var ReactPropTypes$1;

if (__DEV__) {
  // Keep in sync with production version below
  ReactPropTypes$1 = {
    array: createPrimitiveTypeChecker('array'),
    bool: createPrimitiveTypeChecker('boolean'),
    func: createPrimitiveTypeChecker('function'),
    number: createPrimitiveTypeChecker('number'),
    object: createPrimitiveTypeChecker('object'),
    string: createPrimitiveTypeChecker('string'),
    symbol: createPrimitiveTypeChecker('symbol'),

    any: createAnyTypeChecker(),
    arrayOf: createArrayOfTypeChecker,
    element: createElementTypeChecker(),
    instanceOf: createInstanceTypeChecker,
    node: createNodeChecker(),
    objectOf: createObjectOfTypeChecker,
    oneOf: createEnumTypeChecker,
    oneOfType: createUnionTypeChecker,
    shape: createShapeTypeChecker
  };
} else {
  var productionTypeChecker = function () {
    invariant$6(false, 'React.PropTypes type checking code is stripped in production.');
  };
  productionTypeChecker.isRequired = productionTypeChecker;
  var getProductionTypeChecker = function () {
    return productionTypeChecker;
  };
  // Keep in sync with development version above
  ReactPropTypes$1 = {
    array: productionTypeChecker,
    bool: productionTypeChecker,
    func: productionTypeChecker,
    number: productionTypeChecker,
    object: productionTypeChecker,
    string: productionTypeChecker,
    symbol: productionTypeChecker,

    any: productionTypeChecker,
    arrayOf: getProductionTypeChecker,
    element: productionTypeChecker,
    instanceOf: getProductionTypeChecker,
    node: productionTypeChecker,
    objectOf: getProductionTypeChecker,
    oneOf: getProductionTypeChecker,
    oneOfType: getProductionTypeChecker,
    shape: getProductionTypeChecker
  };
}

/**
 * inlined Object.is polyfill to avoid requiring consumers ship their own
 * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
 */
/*eslint-disable no-self-compare*/
function is(x, y) {
  // SameValue algorithm
  if (x === y) {
    // Steps 1-5, 7-10
    // Steps 6.b-6.e: +0 != -0
    return x !== 0 || 1 / x === 1 / y;
  } else {
    // Step 6.a: NaN == NaN
    return x !== x && y !== y;
  }
}
/*eslint-enable no-self-compare*/

/**
 * We use an Error-like object for backward compatibility as people may call
 * PropTypes directly and inspect their output. However, we don't use real
 * Errors anymore. We don't inspect their stack anyway, and creating them
 * is prohibitively expensive if they are created too often, such as what
 * happens in oneOfType() for any type before the one that matched.
 */
function PropTypeError(message) {
  this.message = message;
  this.stack = '';
}
// Make `instanceof Error` still work for returned errors.
PropTypeError.prototype = Error.prototype;

function createChainableTypeChecker(validate) {
  if (__DEV__) {
    var manualPropTypeCallCache = {};
  }
  function checkType(isRequired, props, propName, componentName, location, propFullName, secret) {
    componentName = componentName || ANONYMOUS;
    propFullName = propFullName || propName;
    if (__DEV__) {
      if (secret !== ReactPropTypesSecret$2 && typeof console !== 'undefined') {
        var cacheKey = componentName + ':' + propName;
        if (!manualPropTypeCallCache[cacheKey]) {
          warning$9(false, 'You are manually calling a React.PropTypes validation ' + 'function for the `%s` prop on `%s`. This is deprecated ' + 'and will not work in production with the next major version. ' + 'You may be seeing this warning due to a third-party PropTypes ' + 'library. See https://fb.me/react-warning-dont-call-proptypes ' + 'for details.', propFullName, componentName);
          manualPropTypeCallCache[cacheKey] = true;
        }
      }
    }
    if (props[propName] == null) {
      if (isRequired) {
        if (props[propName] === null) {
          return new PropTypeError('The ' + location + ' `' + propFullName + '` is marked as required ' + ('in `' + componentName + '`, but its value is `null`.'));
        }
        return new PropTypeError('The ' + location + ' `' + propFullName + '` is marked as required in ' + ('`' + componentName + '`, but its value is `undefined`.'));
      }
      return null;
    } else {
      return validate(props, propName, componentName, location, propFullName);
    }
  }

  var chainedCheckType = checkType.bind(null, false);
  chainedCheckType.isRequired = checkType.bind(null, true);

  return chainedCheckType;
}

function createPrimitiveTypeChecker(expectedType) {
  function validate(props, propName, componentName, location, propFullName, secret) {
    var propValue = props[propName];
    var propType = getPropType(propValue);
    if (propType !== expectedType) {
      // `propValue` being instance of, say, date/regexp, pass the 'object'
      // check, but we can offer a more precise error message here rather than
      // 'of type `object`'.
      var preciseType = getPreciseType(propValue);

      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + preciseType + '` supplied to `' + componentName + '`, expected ') + ('`' + expectedType + '`.'));
    }
    return null;
  }
  return createChainableTypeChecker(validate);
}

function createAnyTypeChecker() {
  return createChainableTypeChecker(emptyFunction$2.thatReturnsNull);
}

function createArrayOfTypeChecker(typeChecker) {
  function validate(props, propName, componentName, location, propFullName) {
    if (typeof typeChecker !== 'function') {
      return new PropTypeError('Property `' + propFullName + '` of component `' + componentName + '` has invalid PropType notation inside arrayOf.');
    }
    var propValue = props[propName];
    if (!Array.isArray(propValue)) {
      var propType = getPropType(propValue);
      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected an array.'));
    }
    for (var i = 0; i < propValue.length; i++) {
      var error = typeChecker(propValue, i, componentName, location, propFullName + '[' + i + ']', ReactPropTypesSecret$2);
      if (error instanceof Error) {
        return error;
      }
    }
    return null;
  }
  return createChainableTypeChecker(validate);
}

function createElementTypeChecker() {
  function validate(props, propName, componentName, location, propFullName) {
    var propValue = props[propName];
    if (!ReactElement$6.isValidElement(propValue)) {
      var propType = getPropType(propValue);
      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected a single ReactElement.'));
    }
    return null;
  }
  return createChainableTypeChecker(validate);
}

function createInstanceTypeChecker(expectedClass) {
  function validate(props, propName, componentName, location, propFullName) {
    if (!(props[propName] instanceof expectedClass)) {
      var expectedClassName = expectedClass.name || ANONYMOUS;
      var actualClassName = getClassName(props[propName]);
      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + actualClassName + '` supplied to `' + componentName + '`, expected ') + ('instance of `' + expectedClassName + '`.'));
    }
    return null;
  }
  return createChainableTypeChecker(validate);
}

function createEnumTypeChecker(expectedValues) {
  if (!Array.isArray(expectedValues)) {
    warning$9(false, 'Invalid argument supplied to oneOf, expected an instance of array.');
    return emptyFunction$2.thatReturnsNull;
  }

  function validate(props, propName, componentName, location, propFullName) {
    var propValue = props[propName];
    for (var i = 0; i < expectedValues.length; i++) {
      if (is(propValue, expectedValues[i])) {
        return null;
      }
    }

    var valuesString = JSON.stringify(expectedValues);
    return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of value `' + propValue + '` ' + ('supplied to `' + componentName + '`, expected one of ' + valuesString + '.'));
  }
  return createChainableTypeChecker(validate);
}

function createObjectOfTypeChecker(typeChecker) {
  function validate(props, propName, componentName, location, propFullName) {
    if (typeof typeChecker !== 'function') {
      return new PropTypeError('Property `' + propFullName + '` of component `' + componentName + '` has invalid PropType notation inside objectOf.');
    }
    var propValue = props[propName];
    var propType = getPropType(propValue);
    if (propType !== 'object') {
      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected an object.'));
    }
    for (var key in propValue) {
      if (propValue.hasOwnProperty(key)) {
        var error = typeChecker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret$2);
        if (error instanceof Error) {
          return error;
        }
      }
    }
    return null;
  }
  return createChainableTypeChecker(validate);
}

function createUnionTypeChecker(arrayOfTypeCheckers) {
  if (!Array.isArray(arrayOfTypeCheckers)) {
    warning$9(false, 'Invalid argument supplied to oneOfType, expected an instance of array.');
    return emptyFunction$2.thatReturnsNull;
  }

  function validate(props, propName, componentName, location, propFullName) {
    for (var i = 0; i < arrayOfTypeCheckers.length; i++) {
      var checker = arrayOfTypeCheckers[i];
      if (checker(props, propName, componentName, location, propFullName, ReactPropTypesSecret$2) == null) {
        return null;
      }
    }

    return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` supplied to ' + ('`' + componentName + '`.'));
  }
  return createChainableTypeChecker(validate);
}

function createNodeChecker() {
  function validate(props, propName, componentName, location, propFullName) {
    if (!isNode(props[propName])) {
      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` supplied to ' + ('`' + componentName + '`, expected a ReactNode.'));
    }
    return null;
  }
  return createChainableTypeChecker(validate);
}

function createShapeTypeChecker(shapeTypes) {
  function validate(props, propName, componentName, location, propFullName) {
    var propValue = props[propName];
    var propType = getPropType(propValue);
    if (propType !== 'object') {
      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type `' + propType + '` ' + ('supplied to `' + componentName + '`, expected `object`.'));
    }
    for (var key in shapeTypes) {
      var checker = shapeTypes[key];
      if (!checker) {
        continue;
      }
      var error = checker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret$2);
      if (error) {
        return error;
      }
    }
    return null;
  }
  return createChainableTypeChecker(validate);
}

function isNode(propValue) {
  switch (typeof propValue) {
    case 'number':
    case 'string':
    case 'undefined':
      return true;
    case 'boolean':
      return !propValue;
    case 'object':
      if (Array.isArray(propValue)) {
        return propValue.every(isNode);
      }
      if (propValue === null || ReactElement$6.isValidElement(propValue)) {
        return true;
      }

      var iteratorFn = getIteratorFn$3(propValue);
      if (iteratorFn) {
        var iterator = iteratorFn.call(propValue);
        var step;
        if (iteratorFn !== propValue.entries) {
          while (!(step = iterator.next()).done) {
            if (!isNode(step.value)) {
              return false;
            }
          }
        } else {
          // Iterator will provide entry [k,v] tuples rather than values.
          while (!(step = iterator.next()).done) {
            var entry = step.value;
            if (entry) {
              if (!isNode(entry[1])) {
                return false;
              }
            }
          }
        }
      } else {
        return false;
      }

      return true;
    default:
      return false;
  }
}

function isSymbol(propType, propValue) {
  // Native Symbol.
  if (propType === 'symbol') {
    return true;
  }

  // 19.4.3.5 Symbol.prototype[@@toStringTag] === 'Symbol'
  if (propValue['@@toStringTag'] === 'Symbol') {
    return true;
  }

  // Fallback for non-spec compliant Symbols which are polyfilled.
  if (typeof Symbol === 'function' && propValue instanceof Symbol) {
    return true;
  }

  return false;
}

// Equivalent of `typeof` but with special handling for array and regexp.
function getPropType(propValue) {
  var propType = typeof propValue;
  if (Array.isArray(propValue)) {
    return 'array';
  }
  if (propValue instanceof RegExp) {
    // Old webkits (at least until Android 4.0) return 'function' rather than
    // 'object' for typeof a RegExp. We'll normalize this here so that /bla/
    // passes PropTypes.object.
    return 'object';
  }
  if (isSymbol(propType, propValue)) {
    return 'symbol';
  }
  return propType;
}

// This handles more types than `getPropType`. Only used for error messages.
// See `createPrimitiveTypeChecker`.
function getPreciseType(propValue) {
  var propType = getPropType(propValue);
  if (propType === 'object') {
    if (propValue instanceof Date) {
      return 'date';
    } else if (propValue instanceof RegExp) {
      return 'regexp';
    }
  }
  return propType;
}

// Returns class name of the object, if any.
function getClassName(propValue) {
  if (!propValue.constructor || !propValue.constructor.name) {
    return ANONYMOUS;
  }
  return propValue.constructor.name;
}

var ReactPropTypes_1 = ReactPropTypes$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactVersion
 */

var ReactVersion$1 = '16.0.0-alpha.3';

var ReactElement$7 = ReactElement_1;

var invariant$7 = invariant;

/**
 * Returns the first child in a collection of children and verifies that there
 * is only one child in the collection.
 *
 * See https://facebook.github.io/react/docs/react-api.html#react.children.only
 *
 * The current implementation of this function assumes that a single child gets
 * passed without a wrapper, but the purpose of this helper function is to
 * abstract away the particular structure of children.
 *
 * @param {?object} children Child collection structure.
 * @return {ReactElement} The first and only `ReactElement` contained in the
 * structure.
 */
function onlyChild$1(children) {
  invariant$7(ReactElement$7.isValidElement(children), 'React.Children.only expected to receive a single React element child.');
  return children;
}

var onlyChild_1 = onlyChild$1;

var ReactBaseClasses = ReactBaseClasses$1;
var ReactChildren = ReactChildren_1;
var ReactClass = ReactClass_1;
var ReactDOMFactories = ReactDOMFactories_1;
var ReactElement = ReactElement_1;
var ReactPropTypes = ReactPropTypes_1;
var ReactVersion = ReactVersion$1;

var onlyChild = onlyChild_1;
var warning2 = warning;
var checkPropTypes = checkPropTypes_1;

var createElement = ReactElement.createElement;
var createFactory = ReactElement.createFactory;
var cloneElement = ReactElement.cloneElement;

if (__DEV__) {
  var ReactElementValidator = ReactElementValidator_1;
  createElement = ReactElementValidator.createElement;
  createFactory = ReactElementValidator.createFactory;
  cloneElement = ReactElementValidator.cloneElement;
}

var createMixin = function (mixin) {
  return mixin;
};

if (__DEV__) {
  var warnedForCreateMixin = false;

  createMixin = function (mixin) {
    warning2(warnedForCreateMixin, 'React.createMixin is deprecated and should not be used. You ' + 'can use this mixin directly instead.');
    warnedForCreateMixin = true;
    return mixin;
  };
}

var React$1 = {

  // Modern

  Children: {
    map: ReactChildren.map,
    forEach: ReactChildren.forEach,
    count: ReactChildren.count,
    toArray: ReactChildren.toArray,
    only: onlyChild
  },

  Component: ReactBaseClasses.Component,
  PureComponent: ReactBaseClasses.PureComponent,

  createElement: createElement,
  cloneElement: cloneElement,
  isValidElement: ReactElement.isValidElement,

  checkPropTypes: checkPropTypes,

  // Classic

  PropTypes: ReactPropTypes,
  createClass: ReactClass.createClass,
  createFactory: createFactory,
  createMixin: createMixin,

  // This looks DOM specific but these are actually isomorphic helpers
  // since they are just generating DOM strings.
  DOM: ReactDOMFactories,

  version: ReactVersion

};

var React_1 = React$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactInstanceMap
 */

/**
 * `ReactInstanceMap` maintains a mapping from a public facing stateful
 * instance (key) and the internal representation (value). This allows public
 * methods to accept the user facing instance as an argument and map them back
 * to internal methods.
 */

// TODO: Replace this with ES6: var ReactInstanceMap = new Map();

var ReactInstanceMap = {

  /**
   * This API should be called `delete` but we'd have to make sure to always
   * transform these to strings for IE support. When this transform is fully
   * supported we can rename it.
   */
  remove: function (key) {
    key._reactInternalInstance = undefined;
  },

  get: function (key) {
    return key._reactInternalInstance;
  },

  has: function (key) {
    return key._reactInternalInstance !== undefined;
  },

  set: function (key, value) {
    key._reactInternalInstance = value;
  }

};

var ReactInstanceMap_1 = ReactInstanceMap;

var KeyEscapeUtils$2 = KeyEscapeUtils_1;
var traverseAllChildren$2 = traverseAllChildren_1;
var warning$10 = warning;

var ReactComponentTreeHook$2;

if (typeof process !== 'undefined' && process.env && process.env.NODE_ENV === 'test') {
  // Temporary hack.
  // Inline requires don't work well with Jest:
  // https://github.com/facebook/react/issues/7240
  // Remove the inline requires when we don't need them anymore:
  // https://github.com/facebook/react/pull/7178
  ReactComponentTreeHook$2 = ReactComponentTreeHook_1;
}

/**
 * @param {function} traverseContext Context passed through traversal.
 * @param {?ReactComponent} child React child component.
 * @param {!string} name String name of key path to child.
 * @param {number=} selfDebugID Optional debugID of the current internal instance.
 */
function flattenSingleChildIntoContext(traverseContext, child, name, selfDebugID) {
  // We found a component instance.
  if (traverseContext && typeof traverseContext === 'object') {
    var result = traverseContext;
    var keyUnique = result[name] === undefined;
    if (__DEV__) {
      if (!ReactComponentTreeHook$2) {
        ReactComponentTreeHook$2 = ReactComponentTreeHook_1;
      }
      if (!keyUnique) {
        warning$10(false, 'flattenChildren(...): Encountered two children with the same key, ' + '`%s`. Child keys must be unique; when two children share a key, only ' + 'the first child will be used.%s', KeyEscapeUtils$2.unescape(name), ReactComponentTreeHook$2.getStackAddendumByID(selfDebugID));
      }
    }
    if (keyUnique && child != null) {
      result[name] = child;
    }
  }
}

/**
 * Flattens children that are typically specified as `props.children`. Any null
 * children will not be included in the resulting object.
 * @return {!object} flattened children keyed by name.
 */
function flattenChildren(children, selfDebugID) {
  if (children == null) {
    return children;
  }
  var result = {};

  if (__DEV__) {
    traverseAllChildren$2(children, function (traverseContext, child, name) {
      return flattenSingleChildIntoContext(traverseContext, child, name, selfDebugID);
    }, result);
  } else {
    traverseAllChildren$2(children, flattenSingleChildIntoContext, result);
  }
  return result;
}

var flattenChildren_1 = flattenChildren;

var React = React_1;

// `version` will be added here by the React module.
var ReactFBEntry = Object.assign({
  __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: {
    ReactCurrentOwner: ReactCurrentOwner_1,
    getComponentName: getComponentName_1,
    ReactInstanceMap: ReactInstanceMap_1,
    flattenChildren: flattenChildren_1
  }
}, React);

if (__DEV__) {
  Object.assign(ReactFBEntry.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED, {
    // ReactComponentTreeHook should not be included in production.
    ReactComponentTreeHook: ReactComponentTreeHook_1
  });
}

var ReactFBEntry_1 = ReactFBEntry;

module.exports = ReactFBEntry_1;

ReactDOM-core.js

/**
  * Copyright 2013-present, Facebook, Inc.
  * All rights reserved.
  *
  * This source code is licensed under the BSD-style license found in the
  * LICENSE file in the root directory of this source tree. An additional grant
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @providesModule ReactDOM-core
  */
'use strict';

var React = require('React');
var invariant = require('invariant');
var warning = require('warning');
var ExecutionEnvironment = require('ExecutionEnvironment');
var emptyFunction = require('emptyFunction');
var EventListener = require('EventListener');
var getUnboundedScrollPosition = require('getUnboundedScrollPosition');
var containsNode = require('containsNode');
var focusNode = require('focusNode');
var getActiveElement = require('getActiveElement');
var shallowEqual = require('shallowEqual');
var createNodesFromMarkup = require('createNodesFromMarkup');
var performanceNow = require('performanceNow');
var camelizeStyleName = require('camelizeStyleName');
var hyphenateStyleName = require('hyphenateStyleName');
var memoizeStringOnly = require('memoizeStringOnly');
var emptyObject = require('emptyObject');

var invariant$1 = invariant;

function checkMask(value, bitmask) {
  return (value & bitmask) === bitmask;
}

var DOMPropertyInjection = {
  /**
   * Mapping from normalized, camelcased property names to a configuration that
   * specifies how the associated DOM property should be accessed or rendered.
   */
  MUST_USE_PROPERTY: 0x1,
  HAS_BOOLEAN_VALUE: 0x4,
  HAS_NUMERIC_VALUE: 0x8,
  HAS_POSITIVE_NUMERIC_VALUE: 0x10 | 0x8,
  HAS_OVERLOADED_BOOLEAN_VALUE: 0x20,

  /**
   * Inject some specialized knowledge about the DOM. This takes a config object
   * with the following properties:
   *
   * isCustomAttribute: function that given an attribute name will return true
   * if it can be inserted into the DOM verbatim. Useful for data-* or aria-*
   * attributes where it's impossible to enumerate all of the possible
   * attribute names,
   *
   * Properties: object mapping DOM property name to one of the
   * DOMPropertyInjection constants or null. If your attribute isn't in here,
   * it won't get written to the DOM.
   *
   * DOMAttributeNames: object mapping React attribute name to the DOM
   * attribute name. Attribute names not specified use the **lowercase**
   * normalized name.
   *
   * DOMAttributeNamespaces: object mapping React attribute name to the DOM
   * attribute namespace URL. (Attribute names not specified use no namespace.)
   *
   * DOMPropertyNames: similar to DOMAttributeNames but for DOM properties.
   * Property names not specified use the normalized name.
   *
   * DOMMutationMethods: Properties that require special mutation methods. If
   * `value` is undefined, the mutation method should unset the property.
   *
   * @param {object} domPropertyConfig the config as described above.
   */
  injectDOMPropertyConfig: function (domPropertyConfig) {
    var Injection = DOMPropertyInjection;
    var Properties = domPropertyConfig.Properties || {};
    var DOMAttributeNamespaces = domPropertyConfig.DOMAttributeNamespaces || {};
    var DOMAttributeNames = domPropertyConfig.DOMAttributeNames || {};
    var DOMPropertyNames = domPropertyConfig.DOMPropertyNames || {};
    var DOMMutationMethods = domPropertyConfig.DOMMutationMethods || {};

    if (domPropertyConfig.isCustomAttribute) {
      DOMProperty$1._isCustomAttributeFunctions.push(domPropertyConfig.isCustomAttribute);
    }

    for (var propName in Properties) {
      invariant$1(!DOMProperty$1.properties.hasOwnProperty(propName), 'injectDOMPropertyConfig(...): You\'re trying to inject DOM property ' + '\'%s\' which has already been injected. You may be accidentally ' + 'injecting the same DOM property config twice, or you may be ' + 'injecting two configs that have conflicting property names.', propName);

      var lowerCased = propName.toLowerCase();
      var propConfig = Properties[propName];

      var propertyInfo = {
        attributeName: lowerCased,
        attributeNamespace: null,
        propertyName: propName,
        mutationMethod: null,

        mustUseProperty: checkMask(propConfig, Injection.MUST_USE_PROPERTY),
        hasBooleanValue: checkMask(propConfig, Injection.HAS_BOOLEAN_VALUE),
        hasNumericValue: checkMask(propConfig, Injection.HAS_NUMERIC_VALUE),
        hasPositiveNumericValue: checkMask(propConfig, Injection.HAS_POSITIVE_NUMERIC_VALUE),
        hasOverloadedBooleanValue: checkMask(propConfig, Injection.HAS_OVERLOADED_BOOLEAN_VALUE)
      };
      invariant$1(propertyInfo.hasBooleanValue + propertyInfo.hasNumericValue + propertyInfo.hasOverloadedBooleanValue <= 1, 'DOMProperty: Value can be one of boolean, overloaded boolean, or ' + 'numeric value, but not a combination: %s', propName);

      if (__DEV__) {
        DOMProperty$1.getPossibleStandardName[lowerCased] = propName;
      }

      if (DOMAttributeNames.hasOwnProperty(propName)) {
        var attributeName = DOMAttributeNames[propName];
        propertyInfo.attributeName = attributeName;
        if (__DEV__) {
          DOMProperty$1.getPossibleStandardName[attributeName] = propName;
        }
      }

      if (DOMAttributeNamespaces.hasOwnProperty(propName)) {
        propertyInfo.attributeNamespace = DOMAttributeNamespaces[propName];
      }

      if (DOMPropertyNames.hasOwnProperty(propName)) {
        propertyInfo.propertyName = DOMPropertyNames[propName];
      }

      if (DOMMutationMethods.hasOwnProperty(propName)) {
        propertyInfo.mutationMethod = DOMMutationMethods[propName];
      }

      DOMProperty$1.properties[propName] = propertyInfo;
    }
  }
};

/* eslint-disable max-len */
var ATTRIBUTE_NAME_START_CHAR = ':A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD';
/* eslint-enable max-len */

/**
 * DOMProperty exports lookup objects that can be used like functions:
 *
 *   > DOMProperty.isValid['id']
 *   true
 *   > DOMProperty.isValid['foobar']
 *   undefined
 *
 * Although this may be confusing, it performs better in general.
 *
 * @see http://jsperf.com/key-exists
 * @see http://jsperf.com/key-missing
 */
var DOMProperty$1 = {

  ID_ATTRIBUTE_NAME: 'data-reactid',
  ROOT_ATTRIBUTE_NAME: 'data-reactroot',

  ATTRIBUTE_NAME_START_CHAR: ATTRIBUTE_NAME_START_CHAR,
  ATTRIBUTE_NAME_CHAR: ATTRIBUTE_NAME_START_CHAR + '\\-.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040',

  /**
   * Map from property "standard name" to an object with info about how to set
   * the property in the DOM. Each object contains:
   *
   * attributeName:
   *   Used when rendering markup or with `*Attribute()`.
   * attributeNamespace
   * propertyName:
   *   Used on DOM node instances. (This includes properties that mutate due to
   *   external factors.)
   * mutationMethod:
   *   If non-null, used instead of the property or `setAttribute()` after
   *   initial render.
   * mustUseProperty:
   *   Whether the property must be accessed and mutated as an object property.
   * hasBooleanValue:
   *   Whether the property should be removed when set to a falsey value.
   * hasNumericValue:
   *   Whether the property must be numeric or parse as a numeric and should be
   *   removed when set to a falsey value.
   * hasPositiveNumericValue:
   *   Whether the property must be positive numeric or parse as a positive
   *   numeric and should be removed when set to a falsey value.
   * hasOverloadedBooleanValue:
   *   Whether the property can be used as a flag as well as with a value.
   *   Removed when strictly equal to false; present without a value when
   *   strictly equal to true; present with a value otherwise.
   */
  properties: {},

  /**
   * Mapping from lowercase property names to the properly cased version, used
   * to warn in the case of missing properties. Available only in __DEV__.
   *
   * autofocus is predefined, because adding it to the property whitelist
   * causes unintended side effects.
   *
   * @type {Object}
   */
  getPossibleStandardName: __DEV__ ? { autofocus: 'autoFocus' } : null,

  /**
   * All of the isCustomAttribute() functions that have been injected.
   */
  _isCustomAttributeFunctions: [],

  /**
   * Checks whether a property name is a custom attribute.
   * @method
   */
  isCustomAttribute: function (attributeName) {
    for (var i = 0; i < DOMProperty$1._isCustomAttributeFunctions.length; i++) {
      var isCustomAttributeFn = DOMProperty$1._isCustomAttributeFunctions[i];
      if (isCustomAttributeFn(attributeName)) {
        return true;
      }
    }
    return false;
  },

  injection: DOMPropertyInjection
};

var DOMProperty_1 = DOMProperty$1;

/**
 * Copyright 2015-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactDOMComponentFlags
 */

var ReactDOMComponentFlags$1 = {
  hasCachedChildNodes: 1 << 0
};

var ReactDOMComponentFlags_1 = ReactDOMComponentFlags$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactTypeOfWork
 *
 */

var ReactTypeOfWork = {
  IndeterminateComponent: 0, // Before we know whether it is functional or class
  FunctionalComponent: 1,
  ClassComponent: 2,
  HostRoot: 3, // Root of a host tree. Could be nested inside another node.
  HostPortal: 4, // A subtree. Could be an entry point to a different renderer.
  HostComponent: 5,
  HostText: 6,
  CoroutineComponent: 7,
  CoroutineHandlerPhase: 8,
  YieldComponent: 9,
  Fragment: 10
};

var DOMProperty = DOMProperty_1;
var ReactDOMComponentFlags = ReactDOMComponentFlags_1;

var _require = ReactTypeOfWork;
var HostComponent = _require.HostComponent;
var HostText = _require.HostText;

var invariant2 = invariant;

var ATTR_NAME = DOMProperty.ID_ATTRIBUTE_NAME;
var Flags = ReactDOMComponentFlags;

var randomKey = Math.random().toString(36).slice(2);

var internalInstanceKey = '__reactInternalInstance$' + randomKey;

var internalEventHandlersKey = '__reactEventHandlers$' + randomKey;

/**
 * Check if a given node should be cached.
 */
function shouldPrecacheNode(node, nodeID) {
  return node.nodeType === 1 && node.getAttribute(ATTR_NAME) === '' + nodeID || node.nodeType === 8 && node.nodeValue === ' react-text: ' + nodeID + ' ' || node.nodeType === 8 && node.nodeValue === ' react-empty: ' + nodeID + ' ';
}

/**
 * Drill down (through composites and empty components) until we get a host or
 * host text component.
 *
 * This is pretty polymorphic but unavoidable with the current structure we have
 * for `_renderedChildren`.
 */
function getRenderedHostOrTextFromComponent(component) {
  var rendered;
  while (rendered = component._renderedComponent) {
    component = rendered;
  }
  return component;
}

/**
 * Populate `_hostNode` on the rendered host/text component with the given
 * DOM node. The passed `inst` can be a composite.
 */
function precacheNode(inst, node) {
  var hostInst = getRenderedHostOrTextFromComponent(inst);
  hostInst._hostNode = node;
  node[internalInstanceKey] = hostInst;
}

function precacheFiberNode(hostInst, node) {
  node[internalInstanceKey] = hostInst;
}

function uncacheNode(inst) {
  var node = inst._hostNode;
  if (node) {
    delete node[internalInstanceKey];
    inst._hostNode = null;
  }
}

/**
 * Populate `_hostNode` on each child of `inst`, assuming that the children
 * match up with the DOM (element) children of `node`.
 *
 * We cache entire levels at once to avoid an n^2 problem where we access the
 * children of a node sequentially and have to walk from the start to our target
 * node every time.
 *
 * Since we update `_renderedChildren` and the actual DOM at (slightly)
 * different times, we could race here and see a newer `_renderedChildren` than
 * the DOM nodes we see. To avoid this, ReactMultiChild calls
 * `prepareToManageChildren` before we change `_renderedChildren`, at which
 * time the container's child nodes are always cached (until it unmounts).
 */
function precacheChildNodes(inst, node) {
  if (inst._flags & Flags.hasCachedChildNodes) {
    return;
  }
  var children = inst._renderedChildren;
  var childNode = node.firstChild;
  outer: for (var name in children) {
    if (!children.hasOwnProperty(name)) {
      continue;
    }
    var childInst = children[name];
    var childID = getRenderedHostOrTextFromComponent(childInst)._domID;
    if (childID === 0) {
      // We're currently unmounting this child in ReactMultiChild; skip it.
      continue;
    }
    // We assume the child nodes are in the same order as the child instances.
    for (; childNode !== null; childNode = childNode.nextSibling) {
      if (shouldPrecacheNode(childNode, childID)) {
        precacheNode(childInst, childNode);
        continue outer;
      }
    }
    // We reached the end of the DOM children without finding an ID match.
    invariant2(false, 'Unable to find element with ID %s.', childID);
  }
  inst._flags |= Flags.hasCachedChildNodes;
}

/**
 * Given a DOM node, return the closest ReactDOMComponent or
 * ReactDOMTextComponent instance ancestor.
 */
function getClosestInstanceFromNode(node) {
  if (node[internalInstanceKey]) {
    return node[internalInstanceKey];
  }

  // Walk up the tree until we find an ancestor whose instance we have cached.
  var parents = [];
  while (!node[internalInstanceKey]) {
    parents.push(node);
    if (node.parentNode) {
      node = node.parentNode;
    } else {
      // Top of the tree. This node must not be part of a React tree (or is
      // unmounted, potentially).
      return null;
    }
  }

  var closest;
  var inst = node[internalInstanceKey];
  if (inst.tag === HostComponent || inst.tag === HostText) {
    // In Fiber, this will always be the deepest root.
    return inst;
  }
  for (; node && (inst = node[internalInstanceKey]); node = parents.pop()) {
    closest = inst;
    if (parents.length) {
      precacheChildNodes(inst, node);
    }
  }

  return closest;
}

/**
 * Given a DOM node, return the ReactDOMComponent or ReactDOMTextComponent
 * instance, or null if the node was not rendered by this React.
 */
function getInstanceFromNode(node) {
  var inst = node[internalInstanceKey];
  if (inst) {
    if (inst.tag === HostComponent || inst.tag === HostText) {
      return inst;
    } else if (inst._hostNode === node) {
      return inst;
    } else {
      return null;
    }
  }
  inst = getClosestInstanceFromNode(node);
  if (inst != null && inst._hostNode === node) {
    return inst;
  } else {
    return null;
  }
}

/**
 * Given a ReactDOMComponent or ReactDOMTextComponent, return the corresponding
 * DOM node.
 */
function getNodeFromInstance(inst) {
  if (inst.tag === HostComponent || inst.tag === HostText) {
    // In Fiber this, is just the state node right now. We assume it will be
    // a host component or host text.
    return inst.stateNode;
  }

  // Without this first invariant2, passing a non-DOM-component triggers the next
  // invariant2 for a missing parent, which is super confusing.
  invariant2(inst._hostNode !== undefined, 'getNodeFromInstance: Invalid argument.');

  if (inst._hostNode) {
    return inst._hostNode;
  }

  // Walk up the tree until we find an ancestor whose DOM node we have cached.
  var parents = [];
  while (!inst._hostNode) {
    parents.push(inst);
    invariant2(inst._hostParent, 'React DOM tree root should always have a node reference.');
    inst = inst._hostParent;
  }

  // Now parents contains each ancestor that does *not* have a cached native
  // node, and `inst` is the deepest ancestor that does.
  for (; parents.length; inst = parents.pop()) {
    precacheChildNodes(inst, inst._hostNode);
  }

  return inst._hostNode;
}

function getFiberCurrentPropsFromNode(node) {
  return node[internalEventHandlersKey] || null;
}

function updateFiberProps(node, props) {
  node[internalEventHandlersKey] = props;
}

var ReactDOMComponentTree$1 = {
  getClosestInstanceFromNode: getClosestInstanceFromNode,
  getInstanceFromNode: getInstanceFromNode,
  getNodeFromInstance: getNodeFromInstance,
  precacheChildNodes: precacheChildNodes,
  precacheNode: precacheNode,
  uncacheNode: uncacheNode,
  precacheFiberNode: precacheFiberNode,
  getFiberCurrentPropsFromNode: getFiberCurrentPropsFromNode,
  updateFiberProps: updateFiberProps
};

var ReactDOMComponentTree_1 = ReactDOMComponentTree$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ARIADOMPropertyConfig
 */

var ARIADOMPropertyConfig$1 = {
  Properties: {
    // Global States and Properties
    'aria-current': 0, // state
    'aria-details': 0,
    'aria-disabled': 0, // state
    'aria-hidden': 0, // state
    'aria-invalid': 0, // state
    'aria-keyshortcuts': 0,
    'aria-label': 0,
    'aria-roledescription': 0,
    // Widget Attributes
    'aria-autocomplete': 0,
    'aria-checked': 0,
    'aria-expanded': 0,
    'aria-haspopup': 0,
    'aria-level': 0,
    'aria-modal': 0,
    'aria-multiline': 0,
    'aria-multiselectable': 0,
    'aria-orientation': 0,
    'aria-placeholder': 0,
    'aria-pressed': 0,
    'aria-readonly': 0,
    'aria-required': 0,
    'aria-selected': 0,
    'aria-sort': 0,
    'aria-valuemax': 0,
    'aria-valuemin': 0,
    'aria-valuenow': 0,
    'aria-valuetext': 0,
    // Live Region Attributes
    'aria-atomic': 0,
    'aria-busy': 0,
    'aria-live': 0,
    'aria-relevant': 0,
    // Drag-and-Drop Attributes
    'aria-dropeffect': 0,
    'aria-grabbed': 0,
    // Relationship Attributes
    'aria-activedescendant': 0,
    'aria-colcount': 0,
    'aria-colindex': 0,
    'aria-colspan': 0,
    'aria-controls': 0,
    'aria-describedby': 0,
    'aria-errormessage': 0,
    'aria-flowto': 0,
    'aria-labelledby': 0,
    'aria-owns': 0,
    'aria-posinset': 0,
    'aria-rowcount': 0,
    'aria-rowindex': 0,
    'aria-rowspan': 0,
    'aria-setsize': 0
  },
  DOMAttributeNames: {},
  DOMPropertyNames: {}
};

var ARIADOMPropertyConfig_1 = ARIADOMPropertyConfig$1;

var invariant$3 = invariant;

/**
 * Injectable ordering of event plugins.
 */
var eventPluginOrder = null;

/**
 * Injectable mapping from names to event plugin modules.
 */
var namesToPlugins = {};

/**
 * Recomputes the plugin list using the injected plugins and plugin ordering.
 *
 * @private
 */
function recomputePluginOrdering() {
  if (!eventPluginOrder) {
    // Wait until an `eventPluginOrder` is injected.
    return;
  }
  for (var pluginName in namesToPlugins) {
    var pluginModule = namesToPlugins[pluginName];
    var pluginIndex = eventPluginOrder.indexOf(pluginName);
    invariant$3(pluginIndex > -1, 'EventPluginRegistry: Cannot inject event plugins that do not exist in ' + 'the plugin ordering, `%s`.', pluginName);
    if (EventPluginRegistry$1.plugins[pluginIndex]) {
      continue;
    }
    invariant$3(pluginModule.extractEvents, 'EventPluginRegistry: Event plugins must implement an `extractEvents` ' + 'method, but `%s` does not.', pluginName);
    EventPluginRegistry$1.plugins[pluginIndex] = pluginModule;
    var publishedEvents = pluginModule.eventTypes;
    for (var eventName in publishedEvents) {
      invariant$3(publishEventForPlugin(publishedEvents[eventName], pluginModule, eventName), 'EventPluginRegistry: Failed to publish event `%s` for plugin `%s`.', eventName, pluginName);
    }
  }
}

/**
 * Publishes an event so that it can be dispatched by the supplied plugin.
 *
 * @param {object} dispatchConfig Dispatch configuration for the event.
 * @param {object} PluginModule Plugin publishing the event.
 * @return {boolean} True if the event was successfully published.
 * @private
 */
function publishEventForPlugin(dispatchConfig, pluginModule, eventName) {
  invariant$3(!EventPluginRegistry$1.eventNameDispatchConfigs.hasOwnProperty(eventName), 'EventPluginHub: More than one plugin attempted to publish the same ' + 'event name, `%s`.', eventName);
  EventPluginRegistry$1.eventNameDispatchConfigs[eventName] = dispatchConfig;

  var phasedRegistrationNames = dispatchConfig.phasedRegistrationNames;
  if (phasedRegistrationNames) {
    for (var phaseName in phasedRegistrationNames) {
      if (phasedRegistrationNames.hasOwnProperty(phaseName)) {
        var phasedRegistrationName = phasedRegistrationNames[phaseName];
        publishRegistrationName(phasedRegistrationName, pluginModule, eventName);
      }
    }
    return true;
  } else if (dispatchConfig.registrationName) {
    publishRegistrationName(dispatchConfig.registrationName, pluginModule, eventName);
    return true;
  }
  return false;
}

/**
 * Publishes a registration name that is used to identify dispatched events.
 *
 * @param {string} registrationName Registration name to add.
 * @param {object} PluginModule Plugin publishing the event.
 * @private
 */
function publishRegistrationName(registrationName, pluginModule, eventName) {
  invariant$3(!EventPluginRegistry$1.registrationNameModules[registrationName], 'EventPluginHub: More than one plugin attempted to publish the same ' + 'registration name, `%s`.', registrationName);
  EventPluginRegistry$1.registrationNameModules[registrationName] = pluginModule;
  EventPluginRegistry$1.registrationNameDependencies[registrationName] = pluginModule.eventTypes[eventName].dependencies;

  if (__DEV__) {
    var lowerCasedName = registrationName.toLowerCase();
    EventPluginRegistry$1.possibleRegistrationNames[lowerCasedName] = registrationName;

    if (registrationName === 'onDoubleClick') {
      EventPluginRegistry$1.possibleRegistrationNames.ondblclick = registrationName;
    }
  }
}

/**
 * Registers plugins so that they can extract and dispatch events.
 *
 * @see {EventPluginHub}
 */
var EventPluginRegistry$1 = {

  /**
   * Ordered list of injected plugins.
   */
  plugins: [],

  /**
   * Mapping from event name to dispatch config
   */
  eventNameDispatchConfigs: {},

  /**
   * Mapping from registration name to plugin module
   */
  registrationNameModules: {},

  /**
   * Mapping from registration name to event name
   */
  registrationNameDependencies: {},

  /**
   * Mapping from lowercase registration names to the properly cased version,
   * used to warn in the case of missing event handlers. Available
   * only in __DEV__.
   * @type {Object}
   */
  possibleRegistrationNames: __DEV__ ? {} : null,
  // Trust the developer to only use possibleRegistrationNames in __DEV__

  /**
   * Injects an ordering of plugins (by plugin name). This allows the ordering
   * to be decoupled from injection of the actual plugins so that ordering is
   * always deterministic regardless of packaging, on-the-fly injection, etc.
   *
   * @param {array} InjectedEventPluginOrder
   * @internal
   * @see {EventPluginHub.injection.injectEventPluginOrder}
   */
  injectEventPluginOrder: function (injectedEventPluginOrder) {
    invariant$3(!eventPluginOrder, 'EventPluginRegistry: Cannot inject event plugin ordering more than ' + 'once. You are likely trying to load more than one copy of React.');
    // Clone the ordering so it cannot be dynamically mutated.
    eventPluginOrder = Array.prototype.slice.call(injectedEventPluginOrder);
    recomputePluginOrdering();
  },

  /**
   * Injects plugins to be used by `EventPluginHub`. The plugin names must be
   * in the ordering injected by `injectEventPluginOrder`.
   *
   * Plugins can be injected as part of page initialization or on-the-fly.
   *
   * @param {object} injectedNamesToPlugins Map from names to plugin modules.
   * @internal
   * @see {EventPluginHub.injection.injectEventPluginsByName}
   */
  injectEventPluginsByName: function (injectedNamesToPlugins) {
    var isOrderingDirty = false;
    for (var pluginName in injectedNamesToPlugins) {
      if (!injectedNamesToPlugins.hasOwnProperty(pluginName)) {
        continue;
      }
      var pluginModule = injectedNamesToPlugins[pluginName];
      if (!namesToPlugins.hasOwnProperty(pluginName) || namesToPlugins[pluginName] !== pluginModule) {
        invariant$3(!namesToPlugins[pluginName], 'EventPluginRegistry: Cannot inject two different event plugins ' + 'using the same name, `%s`.', pluginName);
        namesToPlugins[pluginName] = pluginModule;
        isOrderingDirty = true;
      }
    }
    if (isOrderingDirty) {
      recomputePluginOrdering();
    }
  },

  /**
   * Looks up the plugin for the supplied event.
   *
   * @param {object} event A synthetic event.
   * @return {?object} The plugin that created the supplied event.
   * @internal
   */
  getPluginModuleForEvent: function (event) {
    var dispatchConfig = event.dispatchConfig;
    if (dispatchConfig.registrationName) {
      return EventPluginRegistry$1.registrationNameModules[dispatchConfig.registrationName] || null;
    }
    if (dispatchConfig.phasedRegistrationNames !== undefined) {
      // pulling phasedRegistrationNames out of dispatchConfig helps Flow see
      // that it is not undefined.
      var phasedRegistrationNames = dispatchConfig.phasedRegistrationNames;

      for (var phase in phasedRegistrationNames) {
        if (!phasedRegistrationNames.hasOwnProperty(phase)) {
          continue;
        }
        var pluginModule = EventPluginRegistry$1.registrationNameModules[phasedRegistrationNames[phase]];
        if (pluginModule) {
          return pluginModule;
        }
      }
    }
    return null;
  },

  /**
   * Exposed for unit testing.
   * @private
   */
  _resetEventPlugins: function () {
    eventPluginOrder = null;
    for (var pluginName in namesToPlugins) {
      if (namesToPlugins.hasOwnProperty(pluginName)) {
        delete namesToPlugins[pluginName];
      }
    }
    EventPluginRegistry$1.plugins.length = 0;

    var eventNameDispatchConfigs = EventPluginRegistry$1.eventNameDispatchConfigs;
    for (var eventName in eventNameDispatchConfigs) {
      if (eventNameDispatchConfigs.hasOwnProperty(eventName)) {
        delete eventNameDispatchConfigs[eventName];
      }
    }

    var registrationNameModules = EventPluginRegistry$1.registrationNameModules;
    for (var registrationName in registrationNameModules) {
      if (registrationNameModules.hasOwnProperty(registrationName)) {
        delete registrationNameModules[registrationName];
      }
    }

    if (__DEV__) {
      var possibleRegistrationNames = EventPluginRegistry$1.possibleRegistrationNames;
      for (var lowerCasedName in possibleRegistrationNames) {
        if (possibleRegistrationNames.hasOwnProperty(lowerCasedName)) {
          delete possibleRegistrationNames[lowerCasedName];
        }
      }
    }
  }

};

var EventPluginRegistry_1 = EventPluginRegistry$1;

/**
* Copyright 2013-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @providesModule ReactErrorUtils
*
*/

var caughtError = null;

/**
 * Call a function while guarding against errors that happens within it.
 * Returns an error if it throws, otherwise null.
 *
 * @param {String} name of the guard to use for logging or debugging
 * @param {Function} func The function to invoke
 * @param {*} context The context to use when calling the function
 * @param {...*} args Arguments for function
 */
var ReactErrorUtils$2 = {
  invokeGuardedCallback: function (name, func, context, a, b, c, d, e, f) {
    var funcArgs = Array.prototype.slice.call(arguments, 3);
    try {
      func.apply(context, funcArgs);
    } catch (error) {
      return error;
    }
    return null;
  },

  /**
   * Same as invokeGuardedCallback, but instead of returning an error, it stores
   * it in a global so it can be rethrown by `rethrowCaughtError` later.
   *
   * @param {String} name of the guard to use for logging or debugging
   * @param {Function} func The function to invoke
   * @param {*} context The context to use when calling the function
   * @param {...*} args Arguments for function
   */
  invokeGuardedCallbackAndCatchFirstError: function (name, func, context, a, b, c, d, e, f) {
    var error = ReactErrorUtils$2.invokeGuardedCallback.apply(this, arguments);
    if (error !== null && caughtError === null) {
      caughtError = error;
    }
  },

  /**
   * During execution of guarded functions we will capture the first error which
   * we will rethrow to be handled by the top level error handler.
   */
  rethrowCaughtError: function () {
    if (caughtError) {
      var error = caughtError;
      caughtError = null;
      throw error;
    }
  }
};

if (__DEV__) {
  /**
   * To help development we can get better devtools integration by simulating a
   * real browser event.
   */
  if (typeof window !== 'undefined' && typeof window.dispatchEvent === 'function' && typeof document !== 'undefined' && typeof document.createEvent === 'function') {

    var fakeNode = document.createElement('React');
    var depth = 0;

    ReactErrorUtils$2.invokeGuardedCallback = function (name, func, context, a, b, c, d, e, f) {
      depth++;
      var thisDepth = depth;
      var funcArgs = Array.prototype.slice.call(arguments, 3);
      var boundFunc = function () {
        func.apply(context, funcArgs);
      };
      var fakeEventError = null;
      var onFakeEventError = function (event) {
        // Don't capture nested errors
        if (depth === thisDepth) {
          fakeEventError = event.error;
        }
      };
      var evtType = 'react-' + (name ? name : 'invokeguardedcallback') + '-' + depth;
      window.addEventListener('error', onFakeEventError);
      fakeNode.addEventListener(evtType, boundFunc, false);
      var evt = document.createEvent('Event');
      evt.initEvent(evtType, false, false);
      fakeNode.dispatchEvent(evt);
      fakeNode.removeEventListener(evtType, boundFunc, false);
      window.removeEventListener('error', onFakeEventError);
      depth--;
      return fakeEventError;
    };
  }
}

var ReactErrorUtils_1 = ReactErrorUtils$2;

var ReactErrorUtils$1 = ReactErrorUtils_1;

var invariant$4 = invariant;
var warning$2 = warning;

/**
 * Injected dependencies:
 */

/**
 * - `ComponentTree`: [required] Module that can convert between React instances
 *   and actual node references.
 */
var ComponentTree;
var injection = {
  injectComponentTree: function (Injected) {
    ComponentTree = Injected;
    if (__DEV__) {
      warning$2(Injected && Injected.getNodeFromInstance && Injected.getInstanceFromNode, 'EventPluginUtils.injection.injectComponentTree(...): Injected ' + 'module is missing getNodeFromInstance or getInstanceFromNode.');
    }
  }
};

function isEndish(topLevelType) {
  return topLevelType === 'topMouseUp' || topLevelType === 'topTouchEnd' || topLevelType === 'topTouchCancel';
}

function isMoveish(topLevelType) {
  return topLevelType === 'topMouseMove' || topLevelType === 'topTouchMove';
}
function isStartish(topLevelType) {
  return topLevelType === 'topMouseDown' || topLevelType === 'topTouchStart';
}

var validateEventDispatches;
if (__DEV__) {
  validateEventDispatches = function (event) {
    var dispatchListeners = event._dispatchListeners;
    var dispatchInstances = event._dispatchInstances;

    var listenersIsArr = Array.isArray(dispatchListeners);
    var listenersLen = listenersIsArr ? dispatchListeners.length : dispatchListeners ? 1 : 0;

    var instancesIsArr = Array.isArray(dispatchInstances);
    var instancesLen = instancesIsArr ? dispatchInstances.length : dispatchInstances ? 1 : 0;

    warning$2(instancesIsArr === listenersIsArr && instancesLen === listenersLen, 'EventPluginUtils: Invalid `event`.');
  };
}

/**
 * Dispatch the event to the listener.
 * @param {SyntheticEvent} event SyntheticEvent to handle
 * @param {boolean} simulated If the event is simulated (changes exn behavior)
 * @param {function} listener Application-level callback
 * @param {*} inst Internal component instance
 */
function executeDispatch(event, simulated, listener, inst) {
  var type = event.type || 'unknown-event';
  event.currentTarget = EventPluginUtils$2.getNodeFromInstance(inst);
  ReactErrorUtils$1.invokeGuardedCallbackAndCatchFirstError(type, listener, undefined, event);
  event.currentTarget = null;
}

/**
 * Standard/simple iteration through an event's collected dispatches.
 */
function executeDispatchesInOrder(event, simulated) {
  var dispatchListeners = event._dispatchListeners;
  var dispatchInstances = event._dispatchInstances;
  if (__DEV__) {
    validateEventDispatches(event);
  }
  if (Array.isArray(dispatchListeners)) {
    for (var i = 0; i < dispatchListeners.length; i++) {
      if (event.isPropagationStopped()) {
        break;
      }
      // Listeners and Instances are two parallel arrays that are always in sync.
      executeDispatch(event, simulated, dispatchListeners[i], dispatchInstances[i]);
    }
  } else if (dispatchListeners) {
    executeDispatch(event, simulated, dispatchListeners, dispatchInstances);
  }
  event._dispatchListeners = null;
  event._dispatchInstances = null;
}

/**
 * Standard/simple iteration through an event's collected dispatches, but stops
 * at the first dispatch execution returning true, and returns that id.
 *
 * @return {?string} id of the first dispatch execution who's listener returns
 * true, or null if no listener returned true.
 */
function executeDispatchesInOrderStopAtTrueImpl(event) {
  var dispatchListeners = event._dispatchListeners;
  var dispatchInstances = event._dispatchInstances;
  if (__DEV__) {
    validateEventDispatches(event);
  }
  if (Array.isArray(dispatchListeners)) {
    for (var i = 0; i < dispatchListeners.length; i++) {
      if (event.isPropagationStopped()) {
        break;
      }
      // Listeners and Instances are two parallel arrays that are always in sync.
      if (dispatchListeners[i](event, dispatchInstances[i])) {
        return dispatchInstances[i];
      }
    }
  } else if (dispatchListeners) {
    if (dispatchListeners(event, dispatchInstances)) {
      return dispatchInstances;
    }
  }
  return null;
}

/**
 * @see executeDispatchesInOrderStopAtTrueImpl
 */
function executeDispatchesInOrderStopAtTrue(event) {
  var ret = executeDispatchesInOrderStopAtTrueImpl(event);
  event._dispatchInstances = null;
  event._dispatchListeners = null;
  return ret;
}

/**
 * Execution of a "direct" dispatch - there must be at most one dispatch
 * accumulated on the event or it is considered an error. It doesn't really make
 * sense for an event with multiple dispatches (bubbled) to keep track of the
 * return values at each dispatch execution, but it does tend to make sense when
 * dealing with "direct" dispatches.
 *
 * @return {*} The return value of executing the single dispatch.
 */
function executeDirectDispatch(event) {
  if (__DEV__) {
    validateEventDispatches(event);
  }
  var dispatchListener = event._dispatchListeners;
  var dispatchInstance = event._dispatchInstances;
  invariant$4(!Array.isArray(dispatchListener), 'executeDirectDispatch(...): Invalid `event`.');
  event.currentTarget = dispatchListener ? EventPluginUtils$2.getNodeFromInstance(dispatchInstance) : null;
  var res = dispatchListener ? dispatchListener(event) : null;
  event.currentTarget = null;
  event._dispatchListeners = null;
  event._dispatchInstances = null;
  return res;
}

/**
 * @param {SyntheticEvent} event
 * @return {boolean} True iff number of dispatches accumulated is greater than 0.
 */
function hasDispatches(event) {
  return !!event._dispatchListeners;
}

/**
 * General utilities that are useful in creating custom Event Plugins.
 */
var EventPluginUtils$2 = {
  isEndish: isEndish,
  isMoveish: isMoveish,
  isStartish: isStartish,

  executeDirectDispatch: executeDirectDispatch,
  executeDispatchesInOrder: executeDispatchesInOrder,
  executeDispatchesInOrderStopAtTrue: executeDispatchesInOrderStopAtTrue,
  hasDispatches: hasDispatches,

  getFiberCurrentPropsFromNode: function (node) {
    return ComponentTree.getFiberCurrentPropsFromNode(node);
  },
  getInstanceFromNode: function (node) {
    return ComponentTree.getInstanceFromNode(node);
  },
  getNodeFromInstance: function (node) {
    return ComponentTree.getNodeFromInstance(node);
  },

  injection: injection
};

var EventPluginUtils_1 = EventPluginUtils$2;

var invariant$5 = invariant;

/**
 * Accumulates items that must not be null or undefined into the first one. This
 * is used to conserve memory by avoiding array allocations, and thus sacrifices
 * API cleanness. Since `current` can be null before being passed in and not
 * null after this function, make sure to assign it back to `current`:
 *
 * `a = accumulateInto(a, b);`
 *
 * This API should be sparingly used. Try `accumulate` for something cleaner.
 *
 * @return {*|array<*>} An accumulation of items.
 */

function accumulateInto$2(current, next) {
  invariant$5(next != null, 'accumulateInto(...): Accumulated items must not be null or undefined.');

  if (current == null) {
    return next;
  }

  // Both are not empty. Warning: Never call x.concat(y) when you are not
  // certain that x is an Array (x could be a string with concat method).
  if (Array.isArray(current)) {
    if (Array.isArray(next)) {
      current.push.apply(current, next);
      return current;
    }
    current.push(next);
    return current;
  }

  if (Array.isArray(next)) {
    // A bit too dangerous to mutate `next`.
    return [current].concat(next);
  }

  return [current, next];
}

var accumulateInto_1 = accumulateInto$2;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule forEachAccumulated
 *
 */

/**
 * @param {array} arr an "accumulation" of items which is either an Array or
 * a single item. Useful when paired with the `accumulate` module. This is a
 * simple utility that allows us to reason about a collection of items, but
 * handling the case when there is exactly one item (and we do not need to
 * allocate an array).
 * @param {function} cb Callback invoked with each element or a collection.
 * @param {?} [scope] Scope used as `this` in a callback.
 */

function forEachAccumulated$2(arr, cb, scope) {
  if (Array.isArray(arr)) {
    arr.forEach(cb, scope);
  } else if (arr) {
    cb.call(scope, arr);
  }
}

var forEachAccumulated_1 = forEachAccumulated$2;

var EventPluginRegistry = EventPluginRegistry_1;
var EventPluginUtils$1 = EventPluginUtils_1;
var ReactErrorUtils = ReactErrorUtils_1;

var accumulateInto$1 = accumulateInto_1;
var forEachAccumulated$1 = forEachAccumulated_1;
var invariant$2 = invariant;

/**
 * Internal queue of events that have accumulated their dispatches and are
 * waiting to have their dispatches executed.
 */
var eventQueue = null;

/**
 * Dispatches an event and releases it back into the pool, unless persistent.
 *
 * @param {?object} event Synthetic event to be dispatched.
 * @param {boolean} simulated If the event is simulated (changes exn behavior)
 * @private
 */
var executeDispatchesAndRelease = function (event, simulated) {
  if (event) {
    EventPluginUtils$1.executeDispatchesInOrder(event, simulated);

    if (!event.isPersistent()) {
      event.constructor.release(event);
    }
  }
};
var executeDispatchesAndReleaseSimulated = function (e) {
  return executeDispatchesAndRelease(e, true);
};
var executeDispatchesAndReleaseTopLevel = function (e) {
  return executeDispatchesAndRelease(e, false);
};

function isInteractive(tag) {
  return tag === 'button' || tag === 'input' || tag === 'select' || tag === 'textarea';
}

function shouldPreventMouseEvent(name, type, props) {
  switch (name) {
    case 'onClick':
    case 'onClickCapture':
    case 'onDoubleClick':
    case 'onDoubleClickCapture':
    case 'onMouseDown':
    case 'onMouseDownCapture':
    case 'onMouseMove':
    case 'onMouseMoveCapture':
    case 'onMouseUp':
    case 'onMouseUpCapture':
      return !!(props.disabled && isInteractive(type));
    default:
      return false;
  }
}

/**
 * This is a unified interface for event plugins to be installed and configured.
 *
 * Event plugins can implement the following properties:
 *
 *   `extractEvents` {function(string, DOMEventTarget, string, object): *}
 *     Required. When a top-level event is fired, this method is expected to
 *     extract synthetic events that will in turn be queued and dispatched.
 *
 *   `eventTypes` {object}
 *     Optional, plugins that fire events must publish a mapping of registration
 *     names that are used to register listeners. Values of this mapping must
 *     be objects that contain `registrationName` or `phasedRegistrationNames`.
 *
 *   `executeDispatch` {function(object, function, string)}
 *     Optional, allows plugins to override how an event gets dispatched. By
 *     default, the listener is simply invoked.
 *
 * Each plugin that is injected into `EventsPluginHub` is immediately operable.
 *
 * @public
 */
var EventPluginHub$2 = {

  /**
   * Methods for injecting dependencies.
   */
  injection: {

    /**
     * @param {array} InjectedEventPluginOrder
     * @public
     */
    injectEventPluginOrder: EventPluginRegistry.injectEventPluginOrder,

    /**
     * @param {object} injectedNamesToPlugins Map from names to plugin modules.
     */
    injectEventPluginsByName: EventPluginRegistry.injectEventPluginsByName

  },

  /**
   * @param {object} inst The instance, which is the source of events.
   * @param {string} registrationName Name of listener (e.g. `onClick`).
   * @return {?function} The stored callback.
   */
  getListener: function (inst, registrationName) {
    var listener;

    // TODO: shouldPreventMouseEvent is DOM-specific and definitely should not
    // live here; needs to be moved to a better place soon
    if (typeof inst.tag === 'number') {
      var props = EventPluginUtils$1.getFiberCurrentPropsFromNode(inst.stateNode);
      if (!props) {
        // Work in progress.
        return null;
      }
      listener = props[registrationName];
      if (shouldPreventMouseEvent(registrationName, inst.type, props)) {
        return null;
      }
    } else {
      if (typeof inst._currentElement === 'string') {
        // Text node, let it bubble through.
        return null;
      }
      if (!inst._rootNodeID) {
        // If the instance is already unmounted, we have no listeners.
        return null;
      }
      var _props = inst._currentElement.props;
      listener = _props[registrationName];
      if (shouldPreventMouseEvent(registrationName, inst._currentElement.type, _props)) {
        return null;
      }
    }

    invariant$2(!listener || typeof listener === 'function', 'Expected %s listener to be a function, instead got type %s', registrationName, typeof listener);
    return listener;
  },

  /**
   * Allows registered plugins an opportunity to extract events from top-level
   * native browser events.
   *
   * @return {*} An accumulation of synthetic events.
   * @internal
   */
  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    var events;
    var plugins = EventPluginRegistry.plugins;
    for (var i = 0; i < plugins.length; i++) {
      // Not every plugin in the ordering may be loaded at runtime.
      var possiblePlugin = plugins[i];
      if (possiblePlugin) {
        var extractedEvents = possiblePlugin.extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget);
        if (extractedEvents) {
          events = accumulateInto$1(events, extractedEvents);
        }
      }
    }
    return events;
  },

  /**
   * Enqueues a synthetic event that should be dispatched when
   * `processEventQueue` is invoked.
   *
   * @param {*} events An accumulation of synthetic events.
   * @internal
   */
  enqueueEvents: function (events) {
    if (events) {
      eventQueue = accumulateInto$1(eventQueue, events);
    }
  },

  /**
   * Dispatches all synthetic events on the event queue.
   *
   * @internal
   */
  processEventQueue: function (simulated) {
    // Set `eventQueue` to null before processing it so that we can tell if more
    // events get enqueued while processing.
    var processingEventQueue = eventQueue;
    eventQueue = null;
    if (simulated) {
      forEachAccumulated$1(processingEventQueue, executeDispatchesAndReleaseSimulated);
    } else {
      forEachAccumulated$1(processingEventQueue, executeDispatchesAndReleaseTopLevel);
    }
    invariant$2(!eventQueue, 'processEventQueue(): Additional events were enqueued while processing ' + 'an event queue. Support for this has not yet been implemented.');
    // This would be a good time to rethrow if any of the event handlers threw.
    ReactErrorUtils.rethrowCaughtError();
  }

};

var EventPluginHub_1 = EventPluginHub$2;

var _require$1 = ReactTypeOfWork;
var HostComponent$1 = _require$1.HostComponent;

function getParent(inst) {
  if (inst._hostParent !== undefined) {
    return inst._hostParent;
  }
  if (typeof inst.tag === 'number') {
    do {
      inst = inst['return'];
      // TODO: If this is a HostRoot we might want to bail out.
      // That is depending on if we want nested subtrees (layers) to bubble
      // events to their parent. We could also go through parentNode on the
      // host node but that wouldn't work for React Native and doesn't let us
      // do the portal feature.
    } while (inst && inst.tag !== HostComponent$1);
    if (inst) {
      return inst;
    }
  }
  return null;
}

/**
 * Return the lowest common ancestor of A and B, or null if they are in
 * different trees.
 */
function getLowestCommonAncestor(instA, instB) {
  var depthA = 0;
  for (var tempA = instA; tempA; tempA = getParent(tempA)) {
    depthA++;
  }
  var depthB = 0;
  for (var tempB = instB; tempB; tempB = getParent(tempB)) {
    depthB++;
  }

  // If A is deeper, crawl up.
  while (depthA - depthB > 0) {
    instA = getParent(instA);
    depthA--;
  }

  // If B is deeper, crawl up.
  while (depthB - depthA > 0) {
    instB = getParent(instB);
    depthB--;
  }

  // Walk in lockstep until we find a match.
  var depth = depthA;
  while (depth--) {
    if (instA === instB || instA === instB.alternate) {
      return instA;
    }
    instA = getParent(instA);
    instB = getParent(instB);
  }
  return null;
}

/**
 * Return if A is an ancestor of B.
 */
function isAncestor(instA, instB) {
  while (instB) {
    if (instA === instB || instA === instB.alternate) {
      return true;
    }
    instB = getParent(instB);
  }
  return false;
}

/**
 * Return the parent instance of the passed-in instance.
 */
function getParentInstance(inst) {
  return getParent(inst);
}

/**
 * Simulates the traversal of a two-phase, capture/bubble event dispatch.
 */
function traverseTwoPhase(inst, fn, arg) {
  var path = [];
  while (inst) {
    path.push(inst);
    inst = getParent(inst);
  }
  var i;
  for (i = path.length; i-- > 0;) {
    fn(path[i], 'captured', arg);
  }
  for (i = 0; i < path.length; i++) {
    fn(path[i], 'bubbled', arg);
  }
}

/**
 * Traverses the ID hierarchy and invokes the supplied `cb` on any IDs that
 * should would receive a `mouseEnter` or `mouseLeave` event.
 *
 * Does not invoke the callback on the nearest common ancestor because nothing
 * "entered" or "left" that element.
 */
function traverseEnterLeave(from, to, fn, argFrom, argTo) {
  var common = from && to ? getLowestCommonAncestor(from, to) : null;
  var pathFrom = [];
  while (from && from !== common) {
    pathFrom.push(from);
    from = getParent(from);
  }
  var pathTo = [];
  while (to && to !== common) {
    pathTo.push(to);
    to = getParent(to);
  }
  var i;
  for (i = 0; i < pathFrom.length; i++) {
    fn(pathFrom[i], 'bubbled', argFrom);
  }
  for (i = pathTo.length; i-- > 0;) {
    fn(pathTo[i], 'captured', argTo);
  }
}

var ReactTreeTraversal$1 = {
  isAncestor: isAncestor,
  getLowestCommonAncestor: getLowestCommonAncestor,
  getParentInstance: getParentInstance,
  traverseTwoPhase: traverseTwoPhase,
  traverseEnterLeave: traverseEnterLeave
};

var EventPluginHub$1 = EventPluginHub_1;
var ReactTreeTraversal = ReactTreeTraversal$1;

var accumulateInto = accumulateInto_1;
var forEachAccumulated = forEachAccumulated_1;
var warning$1 = warning;

var getListener = EventPluginHub$1.getListener;

/**
 * Some event types have a notion of different registration names for different
 * "phases" of propagation. This finds listeners by a given phase.
 */
function listenerAtPhase(inst, event, propagationPhase) {
  var registrationName = event.dispatchConfig.phasedRegistrationNames[propagationPhase];
  return getListener(inst, registrationName);
}

/**
 * Tags a `SyntheticEvent` with dispatched listeners. Creating this function
 * here, allows us to not have to bind or create functions for each event.
 * Mutating the event's members allows us to not have to create a wrapping
 * "dispatch" object that pairs the event with the listener.
 */
function accumulateDirectionalDispatches(inst, phase, event) {
  if (__DEV__) {
    warning$1(inst, 'Dispatching inst must not be null');
  }
  var listener = listenerAtPhase(inst, event, phase);
  if (listener) {
    event._dispatchListeners = accumulateInto(event._dispatchListeners, listener);
    event._dispatchInstances = accumulateInto(event._dispatchInstances, inst);
  }
}

/**
 * Collect dispatches (must be entirely collected before dispatching - see unit
 * tests). Lazily allocate the array to conserve memory.  We must loop through
 * each event and perform the traversal for each one. We cannot perform a
 * single traversal for the entire collection of events because each event may
 * have a different target.
 */
function accumulateTwoPhaseDispatchesSingle(event) {
  if (event && event.dispatchConfig.phasedRegistrationNames) {
    ReactTreeTraversal.traverseTwoPhase(event._targetInst, accumulateDirectionalDispatches, event);
  }
}

/**
 * Same as `accumulateTwoPhaseDispatchesSingle`, but skips over the targetID.
 */
function accumulateTwoPhaseDispatchesSingleSkipTarget(event) {
  if (event && event.dispatchConfig.phasedRegistrationNames) {
    var targetInst = event._targetInst;
    var parentInst = targetInst ? ReactTreeTraversal.getParentInstance(targetInst) : null;
    ReactTreeTraversal.traverseTwoPhase(parentInst, accumulateDirectionalDispatches, event);
  }
}

/**
 * Accumulates without regard to direction, does not look for phased
 * registration names. Same as `accumulateDirectDispatchesSingle` but without
 * requiring that the `dispatchMarker` be the same as the dispatched ID.
 */
function accumulateDispatches(inst, ignoredDirection, event) {
  if (event && event.dispatchConfig.registrationName) {
    var registrationName = event.dispatchConfig.registrationName;
    var listener = getListener(inst, registrationName);
    if (listener) {
      event._dispatchListeners = accumulateInto(event._dispatchListeners, listener);
      event._dispatchInstances = accumulateInto(event._dispatchInstances, inst);
    }
  }
}

/**
 * Accumulates dispatches on an `SyntheticEvent`, but only for the
 * `dispatchMarker`.
 * @param {SyntheticEvent} event
 */
function accumulateDirectDispatchesSingle(event) {
  if (event && event.dispatchConfig.registrationName) {
    accumulateDispatches(event._targetInst, null, event);
  }
}

function accumulateTwoPhaseDispatches(events) {
  forEachAccumulated(events, accumulateTwoPhaseDispatchesSingle);
}

function accumulateTwoPhaseDispatchesSkipTarget(events) {
  forEachAccumulated(events, accumulateTwoPhaseDispatchesSingleSkipTarget);
}

function accumulateEnterLeaveDispatches(leave, enter, from, to) {
  ReactTreeTraversal.traverseEnterLeave(from, to, accumulateDispatches, leave, enter);
}

function accumulateDirectDispatches(events) {
  forEachAccumulated(events, accumulateDirectDispatchesSingle);
}

/**
 * A small set of propagation patterns, each of which will accept a small amount
 * of information, and generate a set of "dispatch ready event objects" - which
 * are sets of events that have already been annotated with a set of dispatched
 * listener functions/ids. The API is designed this way to discourage these
 * propagation strategies from actually executing the dispatches, since we
 * always want to collect the entire set of dispatches before executing even a
 * single one.
 *
 * @constructor EventPropagators
 */
var EventPropagators$1 = {
  accumulateTwoPhaseDispatches: accumulateTwoPhaseDispatches,
  accumulateTwoPhaseDispatchesSkipTarget: accumulateTwoPhaseDispatchesSkipTarget,
  accumulateDirectDispatches: accumulateDirectDispatches,
  accumulateEnterLeaveDispatches: accumulateEnterLeaveDispatches
};

var EventPropagators_1 = EventPropagators$1;

var invariant$6 = invariant;

/**
 * Static poolers. Several custom versions for each potential number of
 * arguments. A completely generic pooler is easy to implement, but would
 * require accessing the `arguments` object. In each of these, `this` refers to
 * the Class itself, not an instance. If any others are needed, simply add them
 * here, or in their own files.
 */
var oneArgumentPooler = function (copyFieldsFrom) {
  var Klass = this;
  if (Klass.instancePool.length) {
    var instance = Klass.instancePool.pop();
    Klass.call(instance, copyFieldsFrom);
    return instance;
  } else {
    return new Klass(copyFieldsFrom);
  }
};

var twoArgumentPooler = function (a1, a2) {
  var Klass = this;
  if (Klass.instancePool.length) {
    var instance = Klass.instancePool.pop();
    Klass.call(instance, a1, a2);
    return instance;
  } else {
    return new Klass(a1, a2);
  }
};

var threeArgumentPooler = function (a1, a2, a3) {
  var Klass = this;
  if (Klass.instancePool.length) {
    var instance = Klass.instancePool.pop();
    Klass.call(instance, a1, a2, a3);
    return instance;
  } else {
    return new Klass(a1, a2, a3);
  }
};

var fourArgumentPooler = function (a1, a2, a3, a4) {
  var Klass = this;
  if (Klass.instancePool.length) {
    var instance = Klass.instancePool.pop();
    Klass.call(instance, a1, a2, a3, a4);
    return instance;
  } else {
    return new Klass(a1, a2, a3, a4);
  }
};

var standardReleaser = function (instance) {
  var Klass = this;
  invariant$6(instance instanceof Klass, 'Trying to release an instance into a pool of a different type.');
  instance.destructor();
  if (Klass.instancePool.length < Klass.poolSize) {
    Klass.instancePool.push(instance);
  }
};

var DEFAULT_POOL_SIZE = 10;
var DEFAULT_POOLER = oneArgumentPooler;

/**
 * Augments `CopyConstructor` to be a poolable class, augmenting only the class
 * itself (statically) not adding any prototypical fields. Any CopyConstructor
 * you give this may have a `poolSize` property, and will look for a
 * prototypical `destructor` on instances.
 *
 * @param {Function} CopyConstructor Constructor that can be used to reset.
 * @param {Function} pooler Customizable pooler.
 */
var addPoolingTo = function (CopyConstructor, pooler) {
  // Casting as any so that flow ignores the actual implementation and trusts
  // it to match the type we declared
  var NewKlass = CopyConstructor;
  NewKlass.instancePool = [];
  NewKlass.getPooled = pooler || DEFAULT_POOLER;
  if (!NewKlass.poolSize) {
    NewKlass.poolSize = DEFAULT_POOL_SIZE;
  }
  NewKlass.release = standardReleaser;
  return NewKlass;
};

var PooledClass$1 = {
  addPoolingTo: addPoolingTo,
  oneArgumentPooler: oneArgumentPooler,
  twoArgumentPooler: twoArgumentPooler,
  threeArgumentPooler: threeArgumentPooler,
  fourArgumentPooler: fourArgumentPooler
};

var PooledClass_1 = PooledClass$1;

var ExecutionEnvironment$2 = ExecutionEnvironment;

var contentKey = null;

/**
 * Gets the key used to access text content on a DOM node.
 *
 * @return {?string} Key used to access text content.
 * @internal
 */
function getTextContentAccessor$1() {
  if (!contentKey && ExecutionEnvironment$2.canUseDOM) {
    // Prefer textContent to innerText because many browsers support both but
    // SVG <text> elements don't support innerText even when <div> does.
    contentKey = 'textContent' in document.documentElement ? 'textContent' : 'innerText';
  }
  return contentKey;
}

var getTextContentAccessor_1 = getTextContentAccessor$1;

var PooledClass = PooledClass_1;

var getTextContentAccessor = getTextContentAccessor_1;

/**
 * This helper class stores information about text content of a target node,
 * allowing comparison of content before and after a given event.
 *
 * Identify the node where selection currently begins, then observe
 * both its text content and its current position in the DOM. Since the
 * browser may natively replace the target node during composition, we can
 * use its position to find its replacement.
 *
 * @param {DOMEventTarget} root
 */
function FallbackCompositionState$1(root) {
  this._root = root;
  this._startText = this.getText();
  this._fallbackText = null;
}

Object.assign(FallbackCompositionState$1.prototype, {
  destructor: function () {
    this._root = null;
    this._startText = null;
    this._fallbackText = null;
  },

  /**
   * Get current text of input.
   *
   * @return {string}
   */
  getText: function () {
    if ('value' in this._root) {
      return this._root.value;
    }
    return this._root[getTextContentAccessor()];
  },

  /**
   * Determine the differing substring between the initially stored
   * text content and the current content.
   *
   * @return {string}
   */
  getData: function () {
    if (this._fallbackText) {
      return this._fallbackText;
    }

    var start;
    var startValue = this._startText;
    var startLength = startValue.length;
    var end;
    var endValue = this.getText();
    var endLength = endValue.length;

    for (start = 0; start < startLength; start++) {
      if (startValue[start] !== endValue[start]) {
        break;
      }
    }

    var minEnd = startLength - start;
    for (end = 1; end <= minEnd; end++) {
      if (startValue[startLength - end] !== endValue[endLength - end]) {
        break;
      }
    }

    var sliceTail = end > 1 ? 1 - end : undefined;
    this._fallbackText = endValue.slice(start, sliceTail);
    return this._fallbackText;
  }
});

PooledClass.addPoolingTo(FallbackCompositionState$1);

var FallbackCompositionState_1 = FallbackCompositionState$1;

var PooledClass$2 = PooledClass_1;

var emptyFunction$1 = emptyFunction;
var warning$3 = warning;

var didWarnForAddedNewProperty = false;
var isProxySupported = typeof Proxy === 'function';

var shouldBeReleasedProperties = ['dispatchConfig', '_targetInst', 'nativeEvent', 'isDefaultPrevented', 'isPropagationStopped', '_dispatchListeners', '_dispatchInstances'];

/**
 * @interface Event
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var EventInterface = {
  type: null,
  target: null,
  // currentTarget is set when dispatching; no use in copying it here
  currentTarget: emptyFunction$1.thatReturnsNull,
  eventPhase: null,
  bubbles: null,
  cancelable: null,
  timeStamp: function (event) {
    return event.timeStamp || Date.now();
  },
  defaultPrevented: null,
  isTrusted: null
};

/**
 * Synthetic events are dispatched by event plugins, typically in response to a
 * top-level event delegation handler.
 *
 * These systems should generally use pooling to reduce the frequency of garbage
 * collection. The system should check `isPersistent` to determine whether the
 * event should be released into the pool after being dispatched. Users that
 * need a persisted event should invoke `persist`.
 *
 * Synthetic events (and subclasses) implement the DOM Level 3 Events API by
 * normalizing browser quirks. Subclasses do not necessarily have to implement a
 * DOM interface; custom application-specific events can also subclass this.
 *
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {*} targetInst Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @param {DOMEventTarget} nativeEventTarget Target node.
 */
function SyntheticEvent$1(dispatchConfig, targetInst, nativeEvent, nativeEventTarget) {
  if (__DEV__) {
    // these have a getter/setter for warnings
    delete this.nativeEvent;
    delete this.preventDefault;
    delete this.stopPropagation;
  }

  this.dispatchConfig = dispatchConfig;
  this._targetInst = targetInst;
  this.nativeEvent = nativeEvent;

  var Interface = this.constructor.Interface;
  for (var propName in Interface) {
    if (!Interface.hasOwnProperty(propName)) {
      continue;
    }
    if (__DEV__) {
      delete this[propName]; // this has a getter/setter for warnings
    }
    var normalize = Interface[propName];
    if (normalize) {
      this[propName] = normalize(nativeEvent);
    } else {
      if (propName === 'target') {
        this.target = nativeEventTarget;
      } else {
        this[propName] = nativeEvent[propName];
      }
    }
  }

  var defaultPrevented = nativeEvent.defaultPrevented != null ? nativeEvent.defaultPrevented : nativeEvent.returnValue === false;
  if (defaultPrevented) {
    this.isDefaultPrevented = emptyFunction$1.thatReturnsTrue;
  } else {
    this.isDefaultPrevented = emptyFunction$1.thatReturnsFalse;
  }
  this.isPropagationStopped = emptyFunction$1.thatReturnsFalse;
  return this;
}

Object.assign(SyntheticEvent$1.prototype, {

  preventDefault: function () {
    this.defaultPrevented = true;
    var event = this.nativeEvent;
    if (!event) {
      return;
    }

    if (event.preventDefault) {
      event.preventDefault();
    } else if (typeof event.returnValue !== 'unknown') {
      // eslint-disable-line valid-typeof
      event.returnValue = false;
    }
    this.isDefaultPrevented = emptyFunction$1.thatReturnsTrue;
  },

  stopPropagation: function () {
    var event = this.nativeEvent;
    if (!event) {
      return;
    }

    if (event.stopPropagation) {
      event.stopPropagation();
    } else if (typeof event.cancelBubble !== 'unknown') {
      // eslint-disable-line valid-typeof
      // The ChangeEventPlugin registers a "propertychange" event for
      // IE. This event does not support bubbling or cancelling, and
      // any references to cancelBubble throw "Member not found".  A
      // typeof check of "unknown" circumvents this issue (and is also
      // IE specific).
      event.cancelBubble = true;
    }

    this.isPropagationStopped = emptyFunction$1.thatReturnsTrue;
  },

  /**
   * We release all dispatched `SyntheticEvent`s after each event loop, adding
   * them back into the pool. This allows a way to hold onto a reference that
   * won't be added back into the pool.
   */
  persist: function () {
    this.isPersistent = emptyFunction$1.thatReturnsTrue;
  },

  /**
   * Checks if this event should be released back into the pool.
   *
   * @return {boolean} True if this should not be released, false otherwise.
   */
  isPersistent: emptyFunction$1.thatReturnsFalse,

  /**
   * `PooledClass` looks for `destructor` on each instance it releases.
   */
  destructor: function () {
    var Interface = this.constructor.Interface;
    for (var propName in Interface) {
      if (__DEV__) {
        Object.defineProperty(this, propName, getPooledWarningPropertyDefinition(propName, Interface[propName]));
      } else {
        this[propName] = null;
      }
    }
    for (var i = 0; i < shouldBeReleasedProperties.length; i++) {
      this[shouldBeReleasedProperties[i]] = null;
    }
    if (__DEV__) {
      Object.defineProperty(this, 'nativeEvent', getPooledWarningPropertyDefinition('nativeEvent', null));
      Object.defineProperty(this, 'preventDefault', getPooledWarningPropertyDefinition('preventDefault', emptyFunction$1));
      Object.defineProperty(this, 'stopPropagation', getPooledWarningPropertyDefinition('stopPropagation', emptyFunction$1));
    }
  }

});

SyntheticEvent$1.Interface = EventInterface;

if (__DEV__) {
  if (isProxySupported) {
    /*eslint-disable no-func-assign */
    SyntheticEvent$1 = new Proxy(SyntheticEvent$1, {
      construct: function (target, args) {
        return this.apply(target, Object.create(target.prototype), args);
      },
      apply: function (constructor, that, args) {
        return new Proxy(constructor.apply(that, args), {
          set: function (target, prop, value) {
            if (prop !== 'isPersistent' && !target.constructor.Interface.hasOwnProperty(prop) && shouldBeReleasedProperties.indexOf(prop) === -1) {
              warning$3(didWarnForAddedNewProperty || target.isPersistent(), 'This synthetic event is reused for performance reasons. If you\'re ' + 'seeing this, you\'re adding a new property in the synthetic event object. ' + 'The property is never released. See ' + 'https://fb.me/react-event-pooling for more information.');
              didWarnForAddedNewProperty = true;
            }
            target[prop] = value;
            return true;
          }
        });
      }
    });
    /*eslint-enable no-func-assign */
  }
}
/**
 * Helper to reduce boilerplate when creating subclasses.
 *
 * @param {function} Class
 * @param {?object} Interface
 */
SyntheticEvent$1.augmentClass = function (Class, Interface) {
  var Super = this;

  var E = function () {};
  E.prototype = Super.prototype;
  var prototype = new E();

  Object.assign(prototype, Class.prototype);
  Class.prototype = prototype;
  Class.prototype.constructor = Class;

  Class.Interface = Object.assign({}, Super.Interface, Interface);
  Class.augmentClass = Super.augmentClass;

  PooledClass$2.addPoolingTo(Class, PooledClass$2.fourArgumentPooler);
};

PooledClass$2.addPoolingTo(SyntheticEvent$1, PooledClass$2.fourArgumentPooler);

var SyntheticEvent_1 = SyntheticEvent$1;

/**
  * Helper to nullify syntheticEvent instance properties when destructing
  *
  * @param {object} SyntheticEvent
  * @param {String} propName
  * @return {object} defineProperty object
  */
function getPooledWarningPropertyDefinition(propName, getVal) {
  var isFunction = typeof getVal === 'function';
  return {
    configurable: true,
    set: set,
    get: get
  };

  function set(val) {
    var action = isFunction ? 'setting the method' : 'setting the property';
    warn(action, 'This is effectively a no-op');
    return val;
  }

  function get() {
    var action = isFunction ? 'accessing the method' : 'accessing the property';
    var result = isFunction ? 'This is a no-op function' : 'This is set to null';
    warn(action, result);
    return getVal;
  }

  function warn(action, result) {
    var warningCondition = false;
    warning$3(warningCondition, 'This synthetic event is reused for performance reasons. If you\'re seeing this, ' + 'you\'re %s `%s` on a released/nullified synthetic event. %s. ' + 'If you must keep the original synthetic event around, use event.persist(). ' + 'See https://fb.me/react-event-pooling for more information.', action, propName, result);
  }
}

var SyntheticEvent = SyntheticEvent_1;

/**
 * @interface Event
 * @see http://www.w3.org/TR/DOM-Level-3-Events/#events-compositionevents
 */
var CompositionEventInterface = {
  data: null
};

/**
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {string} dispatchMarker Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @extends {SyntheticUIEvent}
 */
function SyntheticCompositionEvent$1(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
  return SyntheticEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}

SyntheticEvent.augmentClass(SyntheticCompositionEvent$1, CompositionEventInterface);

var SyntheticCompositionEvent_1 = SyntheticCompositionEvent$1;

var SyntheticEvent$2 = SyntheticEvent_1;

/**
 * @interface Event
 * @see http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105
 *      /#events-inputevents
 */
var InputEventInterface = {
  data: null
};

/**
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {string} dispatchMarker Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @extends {SyntheticUIEvent}
 */
function SyntheticInputEvent$1(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
  return SyntheticEvent$2.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}

SyntheticEvent$2.augmentClass(SyntheticInputEvent$1, InputEventInterface);

var SyntheticInputEvent_1 = SyntheticInputEvent$1;

var EventPropagators = EventPropagators_1;
var ExecutionEnvironment$1 = ExecutionEnvironment;
var FallbackCompositionState = FallbackCompositionState_1;
var SyntheticCompositionEvent = SyntheticCompositionEvent_1;
var SyntheticInputEvent = SyntheticInputEvent_1;

var END_KEYCODES = [9, 13, 27, 32]; // Tab, Return, Esc, Space
var START_KEYCODE = 229;

var canUseCompositionEvent = ExecutionEnvironment$1.canUseDOM && 'CompositionEvent' in window;

var documentMode = null;
if (ExecutionEnvironment$1.canUseDOM && 'documentMode' in document) {
  documentMode = document.documentMode;
}

// Webkit offers a very useful `textInput` event that can be used to
// directly represent `beforeInput`. The IE `textinput` event is not as
// useful, so we don't use it.
var canUseTextInputEvent = ExecutionEnvironment$1.canUseDOM && 'TextEvent' in window && !documentMode && !isPresto();

// In IE9+, we have access to composition events, but the data supplied
// by the native compositionend event may be incorrect. Japanese ideographic
// spaces, for instance (\u3000) are not recorded correctly.
var useFallbackCompositionData = ExecutionEnvironment$1.canUseDOM && (!canUseCompositionEvent || documentMode && documentMode > 8 && documentMode <= 11);

/**
 * Opera <= 12 includes TextEvent in window, but does not fire
 * text input events. Rely on keypress instead.
 */
function isPresto() {
  var opera = window.opera;
  return typeof opera === 'object' && typeof opera.version === 'function' && parseInt(opera.version(), 10) <= 12;
}

var SPACEBAR_CODE = 32;
var SPACEBAR_CHAR = String.fromCharCode(SPACEBAR_CODE);

// Events and their corresponding property names.
var eventTypes = {
  beforeInput: {
    phasedRegistrationNames: {
      bubbled: 'onBeforeInput',
      captured: 'onBeforeInputCapture'
    },
    dependencies: ['topCompositionEnd', 'topKeyPress', 'topTextInput', 'topPaste']
  },
  compositionEnd: {
    phasedRegistrationNames: {
      bubbled: 'onCompositionEnd',
      captured: 'onCompositionEndCapture'
    },
    dependencies: ['topBlur', 'topCompositionEnd', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']
  },
  compositionStart: {
    phasedRegistrationNames: {
      bubbled: 'onCompositionStart',
      captured: 'onCompositionStartCapture'
    },
    dependencies: ['topBlur', 'topCompositionStart', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']
  },
  compositionUpdate: {
    phasedRegistrationNames: {
      bubbled: 'onCompositionUpdate',
      captured: 'onCompositionUpdateCapture'
    },
    dependencies: ['topBlur', 'topCompositionUpdate', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']
  }
};

// Track whether we've ever handled a keypress on the space key.
var hasSpaceKeypress = false;

/**
 * Return whether a native keypress event is assumed to be a command.
 * This is required because Firefox fires `keypress` events for key commands
 * (cut, copy, select-all, etc.) even though no character is inserted.
 */
function isKeypressCommand(nativeEvent) {
  return (nativeEvent.ctrlKey || nativeEvent.altKey || nativeEvent.metaKey) &&
  // ctrlKey && altKey is equivalent to AltGr, and is not a command.
  !(nativeEvent.ctrlKey && nativeEvent.altKey);
}

/**
 * Translate native top level events into event types.
 *
 * @param {string} topLevelType
 * @return {object}
 */
function getCompositionEventType(topLevelType) {
  switch (topLevelType) {
    case 'topCompositionStart':
      return eventTypes.compositionStart;
    case 'topCompositionEnd':
      return eventTypes.compositionEnd;
    case 'topCompositionUpdate':
      return eventTypes.compositionUpdate;
  }
}

/**
 * Does our fallback best-guess model think this event signifies that
 * composition has begun?
 *
 * @param {string} topLevelType
 * @param {object} nativeEvent
 * @return {boolean}
 */
function isFallbackCompositionStart(topLevelType, nativeEvent) {
  return topLevelType === 'topKeyDown' && nativeEvent.keyCode === START_KEYCODE;
}

/**
 * Does our fallback mode think that this event is the end of composition?
 *
 * @param {string} topLevelType
 * @param {object} nativeEvent
 * @return {boolean}
 */
function isFallbackCompositionEnd(topLevelType, nativeEvent) {
  switch (topLevelType) {
    case 'topKeyUp':
      // Command keys insert or clear IME input.
      return END_KEYCODES.indexOf(nativeEvent.keyCode) !== -1;
    case 'topKeyDown':
      // Expect IME keyCode on each keydown. If we get any other
      // code we must have exited earlier.
      return nativeEvent.keyCode !== START_KEYCODE;
    case 'topKeyPress':
    case 'topMouseDown':
    case 'topBlur':
      // Events are not possible without cancelling IME.
      return true;
    default:
      return false;
  }
}

/**
 * Google Input Tools provides composition data via a CustomEvent,
 * with the `data` property populated in the `detail` object. If this
 * is available on the event object, use it. If not, this is a plain
 * composition event and we have nothing special to extract.
 *
 * @param {object} nativeEvent
 * @return {?string}
 */
function getDataFromCustomEvent(nativeEvent) {
  var detail = nativeEvent.detail;
  if (typeof detail === 'object' && 'data' in detail) {
    return detail.data;
  }
  return null;
}

// Track the current IME composition fallback object, if any.
var currentComposition = null;

/**
 * @return {?object} A SyntheticCompositionEvent.
 */
function extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
  var eventType;
  var fallbackData;

  if (canUseCompositionEvent) {
    eventType = getCompositionEventType(topLevelType);
  } else if (!currentComposition) {
    if (isFallbackCompositionStart(topLevelType, nativeEvent)) {
      eventType = eventTypes.compositionStart;
    }
  } else if (isFallbackCompositionEnd(topLevelType, nativeEvent)) {
    eventType = eventTypes.compositionEnd;
  }

  if (!eventType) {
    return null;
  }

  if (useFallbackCompositionData) {
    // The current composition is stored statically and must not be
    // overwritten while composition continues.
    if (!currentComposition && eventType === eventTypes.compositionStart) {
      currentComposition = FallbackCompositionState.getPooled(nativeEventTarget);
    } else if (eventType === eventTypes.compositionEnd) {
      if (currentComposition) {
        fallbackData = currentComposition.getData();
      }
    }
  }

  var event = SyntheticCompositionEvent.getPooled(eventType, targetInst, nativeEvent, nativeEventTarget);

  if (fallbackData) {
    // Inject data generated from fallback path into the synthetic event.
    // This matches the property of native CompositionEventInterface.
    event.data = fallbackData;
  } else {
    var customData = getDataFromCustomEvent(nativeEvent);
    if (customData !== null) {
      event.data = customData;
    }
  }

  EventPropagators.accumulateTwoPhaseDispatches(event);
  return event;
}

/**
 * @param {string} topLevelType Record from `EventConstants`.
 * @param {object} nativeEvent Native browser event.
 * @return {?string} The string corresponding to this `beforeInput` event.
 */
function getNativeBeforeInputChars(topLevelType, nativeEvent) {
  switch (topLevelType) {
    case 'topCompositionEnd':
      return getDataFromCustomEvent(nativeEvent);
    case 'topKeyPress':
      /**
       * If native `textInput` events are available, our goal is to make
       * use of them. However, there is a special case: the spacebar key.
       * In Webkit, preventing default on a spacebar `textInput` event
       * cancels character insertion, but it *also* causes the browser
       * to fall back to its default spacebar behavior of scrolling the
       * page.
       *
       * Tracking at:
       * https://code.google.com/p/chromium/issues/detail?id=355103
       *
       * To avoid this issue, use the keypress event as if no `textInput`
       * event is available.
       */
      var which = nativeEvent.which;
      if (which !== SPACEBAR_CODE) {
        return null;
      }

      hasSpaceKeypress = true;
      return SPACEBAR_CHAR;

    case 'topTextInput':
      // Record the characters to be added to the DOM.
      var chars = nativeEvent.data;

      // If it's a spacebar character, assume that we have already handled
      // it at the keypress level and bail immediately. Android Chrome
      // doesn't give us keycodes, so we need to blacklist it.
      if (chars === SPACEBAR_CHAR && hasSpaceKeypress) {
        return null;
      }

      return chars;

    default:
      // For other native event types, do nothing.
      return null;
  }
}

/**
 * For browsers that do not provide the `textInput` event, extract the
 * appropriate string to use for SyntheticInputEvent.
 *
 * @param {string} topLevelType Record from `EventConstants`.
 * @param {object} nativeEvent Native browser event.
 * @return {?string} The fallback string for this `beforeInput` event.
 */
function getFallbackBeforeInputChars(topLevelType, nativeEvent) {
  // If we are currently composing (IME) and using a fallback to do so,
  // try to extract the composed characters from the fallback object.
  // If composition event is available, we extract a string only at
  // compositionevent, otherwise extract it at fallback events.
  if (currentComposition) {
    if (topLevelType === 'topCompositionEnd' || !canUseCompositionEvent && isFallbackCompositionEnd(topLevelType, nativeEvent)) {
      var chars = currentComposition.getData();
      FallbackCompositionState.release(currentComposition);
      currentComposition = null;
      return chars;
    }
    return null;
  }

  switch (topLevelType) {
    case 'topPaste':
      // If a paste event occurs after a keypress, throw out the input
      // chars. Paste events should not lead to BeforeInput events.
      return null;
    case 'topKeyPress':
      /**
       * As of v27, Firefox may fire keypress events even when no character
       * will be inserted. A few possibilities:
       *
       * - `which` is `0`. Arrow keys, Esc key, etc.
       *
       * - `which` is the pressed key code, but no char is available.
       *   Ex: 'AltGr + d` in Polish. There is no modified character for
       *   this key combination and no character is inserted into the
       *   document, but FF fires the keypress for char code `100` anyway.
       *   No `input` event will occur.
       *
       * - `which` is the pressed key code, but a command combination is
       *   being used. Ex: `Cmd+C`. No character is inserted, and no
       *   `input` event will occur.
       */
      if (nativeEvent.which && !isKeypressCommand(nativeEvent)) {
        return String.fromCharCode(nativeEvent.which);
      }
      return null;
    case 'topCompositionEnd':
      return useFallbackCompositionData ? null : nativeEvent.data;
    default:
      return null;
  }
}

/**
 * Extract a SyntheticInputEvent for `beforeInput`, based on either native
 * `textInput` or fallback behavior.
 *
 * @return {?object} A SyntheticInputEvent.
 */
function extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
  var chars;

  if (canUseTextInputEvent) {
    chars = getNativeBeforeInputChars(topLevelType, nativeEvent);
  } else {
    chars = getFallbackBeforeInputChars(topLevelType, nativeEvent);
  }

  // If no characters are being inserted, no BeforeInput event should
  // be fired.
  if (!chars) {
    return null;
  }

  var event = SyntheticInputEvent.getPooled(eventTypes.beforeInput, targetInst, nativeEvent, nativeEventTarget);

  event.data = chars;
  EventPropagators.accumulateTwoPhaseDispatches(event);
  return event;
}

/**
 * Create an `onBeforeInput` event to match
 * http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105/#events-inputevents.
 *
 * This event plugin is based on the native `textInput` event
 * available in Chrome, Safari, Opera, and IE. This event fires after
 * `onKeyPress` and `onCompositionEnd`, but before `onInput`.
 *
 * `beforeInput` is spec'd but not implemented in any browsers, and
 * the `input` event does not provide any useful information about what has
 * actually been added, contrary to the spec. Thus, `textInput` is the best
 * available event to identify the characters that have actually been inserted
 * into the target node.
 *
 * This plugin is also responsible for emitting `composition` events, thus
 * allowing us to share composition fallback code for both `beforeInput` and
 * `composition` event types.
 */
var BeforeInputEventPlugin$1 = {

  eventTypes: eventTypes,

  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    return [extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget), extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget)];
  }
};

var BeforeInputEventPlugin_1 = BeforeInputEventPlugin$1;

var EventPluginUtils$3 = EventPluginUtils_1;

var invariant$7 = invariant;

// Use to restore controlled state after a change event has fired.

var fiberHostComponent = null;

var ReactControlledComponentInjection = {
  injectFiberControlledHostComponent: function (hostComponentImpl) {
    // The fiber implementation doesn't use dynamic dispatch so we need to
    // inject the implementation.
    fiberHostComponent = hostComponentImpl;
  }
};

var restoreTarget = null;
var restoreQueue = null;

function restoreStateOfTarget(target) {
  // We perform this translation at the end of the event loop so that we
  // always receive the correct fiber here
  var internalInstance = EventPluginUtils$3.getInstanceFromNode(target);
  if (!internalInstance) {
    // Unmounted
    return;
  }
  if (typeof internalInstance.tag === 'number') {
    invariant$7(fiberHostComponent && typeof fiberHostComponent.restoreControlledState === 'function', 'Fiber needs to be injected to handle a fiber target for controlled ' + 'events.');
    var props = EventPluginUtils$3.getFiberCurrentPropsFromNode(internalInstance.stateNode);
    fiberHostComponent.restoreControlledState(internalInstance.stateNode, internalInstance.type, props);
    return;
  }
  invariant$7(typeof internalInstance.restoreControlledState === 'function', 'The internal instance must be a React host component.');
  // If it is not a Fiber, we can just use dynamic dispatch.
  internalInstance.restoreControlledState();
}

var ReactControlledComponent$1 = {
  injection: ReactControlledComponentInjection,

  enqueueStateRestore: function (target) {
    if (restoreTarget) {
      if (restoreQueue) {
        restoreQueue.push(target);
      } else {
        restoreQueue = [target];
      }
    } else {
      restoreTarget = target;
    }
  },
  restoreStateIfNeeded: function () {
    if (!restoreTarget) {
      return;
    }
    var target = restoreTarget;
    var queuedTargets = restoreQueue;
    restoreTarget = null;
    restoreQueue = null;

    restoreStateOfTarget(target);
    if (queuedTargets) {
      for (var i = 0; i < queuedTargets.length; i++) {
        restoreStateOfTarget(queuedTargets[i]);
      }
    }
  }
};

var ReactControlledComponent_1 = ReactControlledComponent$1;

var ReactControlledComponent$2 = ReactControlledComponent_1;

// Used as a way to call batchedUpdates when we don't know if we're in a Fiber
// or Stack context. Such as when we're dispatching events or if third party
// libraries need to call batchedUpdates. Eventually, this API will go away when
// everything is batched by default. We'll then have a similar API to opt-out of
// scheduled work and instead do synchronous work.

// Defaults
var stackBatchedUpdates = function (fn, a, b, c, d, e) {
  return fn(a, b, c, d, e);
};
var fiberBatchedUpdates = function (fn, bookkeeping) {
  return fn(bookkeeping);
};

function performFiberBatchedUpdates(fn, bookkeeping) {
  // If we have Fiber loaded, we need to wrap this in a batching call so that
  // Fiber can apply its default priority for this call.
  return fiberBatchedUpdates(fn, bookkeeping);
}
function batchedUpdates(fn, bookkeeping) {
  // We first perform work with the stack batching strategy, by passing our
  // indirection to it.
  return stackBatchedUpdates(performFiberBatchedUpdates, fn, bookkeeping);
}

var isNestingBatched = false;
function batchedUpdatesWithControlledComponents(fn, bookkeeping) {
  if (isNestingBatched) {
    // If we are currently inside another batch, we need to wait until it
    // fully completes before restoring state. Therefore, we add the target to
    // a queue of work.
    return batchedUpdates(fn, bookkeeping);
  }
  isNestingBatched = true;
  try {
    return batchedUpdates(fn, bookkeeping);
  } finally {
    // Here we wait until all updates have propagated, which is important
    // when using controlled components within layers:
    // https://github.com/facebook/react/issues/1698
    // Then we restore state of any controlled component.
    isNestingBatched = false;
    ReactControlledComponent$2.restoreStateIfNeeded();
  }
}

var ReactGenericBatchingInjection = {
  injectStackBatchedUpdates: function (_batchedUpdates) {
    stackBatchedUpdates = _batchedUpdates;
  },
  injectFiberBatchedUpdates: function (_batchedUpdates) {
    fiberBatchedUpdates = _batchedUpdates;
  }
};

var ReactGenericBatching$2 = {
  batchedUpdates: batchedUpdatesWithControlledComponents,
  injection: ReactGenericBatchingInjection
};

var ReactGenericBatching_1 = ReactGenericBatching$2;

var ReactDOMComponentTree$4 = ReactDOMComponentTree_1;

function isCheckable(elem) {
  var type = elem.type;
  var nodeName = elem.nodeName;
  return nodeName && nodeName.toLowerCase() === 'input' && (type === 'checkbox' || type === 'radio');
}

function getTracker(inst) {
  if (typeof inst.tag === 'number') {
    inst = inst.stateNode;
  }
  return inst._wrapperState.valueTracker;
}

function attachTracker(inst, tracker) {
  inst._wrapperState.valueTracker = tracker;
}

function detachTracker(inst) {
  delete inst._wrapperState.valueTracker;
}

function getValueFromNode(node) {
  var value;
  if (node) {
    value = isCheckable(node) ? '' + node.checked : node.value;
  }
  return value;
}

function trackValueOnNode(node, inst) {
  var valueField = isCheckable(node) ? 'checked' : 'value';
  var descriptor = Object.getOwnPropertyDescriptor(node.constructor.prototype, valueField);

  var currentValue = '' + node[valueField];

  // if someone has already defined a value or Safari, then bail
  // and don't track value will cause over reporting of changes,
  // but it's better then a hard failure
  // (needed for certain tests that spyOn input values and Safari)
  if (node.hasOwnProperty(valueField) || typeof descriptor.get !== 'function' || typeof descriptor.set !== 'function') {
    return;
  }

  Object.defineProperty(node, valueField, {
    enumerable: descriptor.enumerable,
    configurable: true,
    get: function () {
      return descriptor.get.call(this);
    },
    set: function (value) {
      currentValue = '' + value;
      descriptor.set.call(this, value);
    }
  });

  var tracker = {
    getValue: function () {
      return currentValue;
    },
    setValue: function (value) {
      currentValue = '' + value;
    },
    stopTracking: function () {
      detachTracker(inst);
      delete node[valueField];
    }
  };
  return tracker;
}

var inputValueTracking$1 = {
  // exposed for testing
  _getTrackerFromNode: function (node) {
    return getTracker(ReactDOMComponentTree$4.getInstanceFromNode(node));
  },


  trackNode: function (node) {
    if (node._wrapperState.valueTracker) {
      return;
    }
    node._wrapperState.valueTracker = trackValueOnNode(node, node);
  },

  track: function (inst) {
    if (getTracker(inst)) {
      return;
    }
    var node = ReactDOMComponentTree$4.getNodeFromInstance(inst);
    attachTracker(inst, trackValueOnNode(node, inst));
  },

  updateValueIfChanged: function (inst) {
    if (!inst) {
      return false;
    }
    var tracker = getTracker(inst);

    if (!tracker) {
      if (typeof inst.tag === 'number') {
        inputValueTracking$1.trackNode(inst.stateNode);
      } else {
        inputValueTracking$1.track(inst);
      }
      return true;
    }

    var lastValue = tracker.getValue();
    var nextValue = getValueFromNode(ReactDOMComponentTree$4.getNodeFromInstance(inst));

    if (nextValue !== lastValue) {
      tracker.setValue(nextValue);
      return true;
    }

    return false;
  },
  stopTracking: function (inst) {
    var tracker = getTracker(inst);
    if (tracker) {
      tracker.stopTracking();
    }
  }
};

var inputValueTracking_1 = inputValueTracking$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule getEventTarget
 */

/**
 * Gets the target node from a native browser event by accounting for
 * inconsistencies in browser DOM APIs.
 *
 * @param {object} nativeEvent Native browser event.
 * @return {DOMEventTarget} Target node.
 */

function getEventTarget$1(nativeEvent) {
  var target = nativeEvent.target || nativeEvent.srcElement || window;

  // Normalize SVG <use> element events #4963
  if (target.correspondingUseElement) {
    target = target.correspondingUseElement;
  }

  // Safari may fire events on text nodes (Node.TEXT_NODE is 3).
  // @see http://www.quirksmode.org/js/events_properties.html
  return target.nodeType === 3 ? target.parentNode : target;
}

var getEventTarget_1 = getEventTarget$1;

var ExecutionEnvironment$4 = ExecutionEnvironment;

var useHasFeature;
if (ExecutionEnvironment$4.canUseDOM) {
  useHasFeature = document.implementation && document.implementation.hasFeature &&
  // always returns true in newer browsers as per the standard.
  // @see http://dom.spec.whatwg.org/#dom-domimplementation-hasfeature
  document.implementation.hasFeature('', '') !== true;
}

/**
 * Checks if an event is supported in the current execution environment.
 *
 * NOTE: This will not work correctly for non-generic events such as `change`,
 * `reset`, `load`, `error`, and `select`.
 *
 * Borrows from Modernizr.
 *
 * @param {string} eventNameSuffix Event name, e.g. "click".
 * @param {?boolean} capture Check if the capture phase is supported.
 * @return {boolean} True if the event is supported.
 * @internal
 * @license Modernizr 3.0.0pre (Custom Build) | MIT
 */
function isEventSupported$1(eventNameSuffix, capture) {
  if (!ExecutionEnvironment$4.canUseDOM || capture && !('addEventListener' in document)) {
    return false;
  }

  var eventName = 'on' + eventNameSuffix;
  var isSupported = eventName in document;

  if (!isSupported) {
    var element = document.createElement('div');
    element.setAttribute(eventName, 'return;');
    isSupported = typeof element[eventName] === 'function';
  }

  if (!isSupported && useHasFeature && eventNameSuffix === 'wheel') {
    // This is the only way to test support for the `wheel` event in IE9+.
    isSupported = document.implementation.hasFeature('Events.wheel', '3.0');
  }

  return isSupported;
}

var isEventSupported_1 = isEventSupported$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule isTextInputElement
 *
 */

/**
 * @see http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary
 */

var supportedInputTypes = {
  'color': true,
  'date': true,
  'datetime': true,
  'datetime-local': true,
  'email': true,
  'month': true,
  'number': true,
  'password': true,
  'range': true,
  'search': true,
  'tel': true,
  'text': true,
  'time': true,
  'url': true,
  'week': true
};

function isTextInputElement$1(elem) {
  var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase();

  if (nodeName === 'input') {
    return !!supportedInputTypes[elem.type];
  }

  if (nodeName === 'textarea') {
    return true;
  }

  return false;
}

var isTextInputElement_1 = isTextInputElement$1;

var EventPluginHub$3 = EventPluginHub_1;
var EventPropagators$2 = EventPropagators_1;
var ExecutionEnvironment$3 = ExecutionEnvironment;
var ReactControlledComponent = ReactControlledComponent_1;
var ReactDOMComponentTree$3 = ReactDOMComponentTree_1;
var ReactGenericBatching$1 = ReactGenericBatching_1;
var SyntheticEvent$3 = SyntheticEvent_1;

var inputValueTracking = inputValueTracking_1;
var getEventTarget = getEventTarget_1;
var isEventSupported = isEventSupported_1;
var isTextInputElement = isTextInputElement_1;

var eventTypes$1 = {
  change: {
    phasedRegistrationNames: {
      bubbled: 'onChange',
      captured: 'onChangeCapture'
    },
    dependencies: ['topBlur', 'topChange', 'topClick', 'topFocus', 'topInput', 'topKeyDown', 'topKeyUp', 'topSelectionChange']
  }
};

function createAndAccumulateChangeEvent(inst, nativeEvent, target) {
  var event = SyntheticEvent$3.getPooled(eventTypes$1.change, inst, nativeEvent, target);
  event.type = 'change';
  // Flag this event loop as needing state restore.
  ReactControlledComponent.enqueueStateRestore(target);
  EventPropagators$2.accumulateTwoPhaseDispatches(event);
  return event;
}
/**
 * For IE shims
 */
var activeElement = null;
var activeElementInst = null;

/**
 * SECTION: handle `change` event
 */
function shouldUseChangeEvent(elem) {
  var nodeName = elem.nodeName && elem.nodeName.toLowerCase();
  return nodeName === 'select' || nodeName === 'input' && elem.type === 'file';
}

var doesChangeEventBubble = false;
if (ExecutionEnvironment$3.canUseDOM) {
  // See `handleChange` comment below
  doesChangeEventBubble = isEventSupported('change') && (!document.documentMode || document.documentMode > 8);
}

function manualDispatchChangeEvent(nativeEvent) {
  var event = createAndAccumulateChangeEvent(activeElementInst, nativeEvent, getEventTarget(nativeEvent));

  // If change and propertychange bubbled, we'd just bind to it like all the
  // other events and have it go through ReactBrowserEventEmitter. Since it
  // doesn't, we manually listen for the events and so we have to enqueue and
  // process the abstract event manually.
  //
  // Batching is necessary here in order to ensure that all event handlers run
  // before the next rerender (including event handlers attached to ancestor
  // elements instead of directly on the input). Without this, controlled
  // components don't work properly in conjunction with event bubbling because
  // the component is rerendered and the value reverted before all the event
  // handlers can run. See https://github.com/facebook/react/issues/708.
  ReactGenericBatching$1.batchedUpdates(runEventInBatch, event);
}

function runEventInBatch(event) {
  EventPluginHub$3.enqueueEvents(event);
  EventPluginHub$3.processEventQueue(false);
}

function startWatchingForChangeEventIE8(target, targetInst) {
  activeElement = target;
  activeElementInst = targetInst;
  activeElement.attachEvent('onchange', manualDispatchChangeEvent);
}

function stopWatchingForChangeEventIE8() {
  if (!activeElement) {
    return;
  }
  activeElement.detachEvent('onchange', manualDispatchChangeEvent);
  activeElement = null;
  activeElementInst = null;
}

function getInstIfValueChanged(targetInst) {
  if (inputValueTracking.updateValueIfChanged(targetInst)) {
    return targetInst;
  }
}

function getTargetInstForChangeEvent(topLevelType, targetInst) {
  if (topLevelType === 'topChange') {
    return targetInst;
  }
}

function handleEventsForChangeEventIE8(topLevelType, target, targetInst) {
  if (topLevelType === 'topFocus') {
    // stopWatching() should be a noop here but we call it just in case we
    // missed a blur event somehow.
    stopWatchingForChangeEventIE8();
    startWatchingForChangeEventIE8(target, targetInst);
  } else if (topLevelType === 'topBlur') {
    stopWatchingForChangeEventIE8();
  }
}

/**
 * SECTION: handle `input` event
 */
var isInputEventSupported = false;
if (ExecutionEnvironment$3.canUseDOM) {
  // IE9 claims to support the input event but fails to trigger it when
  // deleting text, so we ignore its input events.
  isInputEventSupported = isEventSupported('input') && (!document.documentMode || document.documentMode > 9);
}

/**
 * (For IE <=9) Starts tracking propertychange events on the passed-in element
 * and override the value property so that we can distinguish user events from
 * value changes in JS.
 */
function startWatchingForValueChange(target, targetInst) {
  activeElement = target;
  activeElementInst = targetInst;
  activeElement.attachEvent('onpropertychange', handlePropertyChange);
}

/**
 * (For IE <=9) Removes the event listeners from the currently-tracked element,
 * if any exists.
 */
function stopWatchingForValueChange() {
  if (!activeElement) {
    return;
  }
  activeElement.detachEvent('onpropertychange', handlePropertyChange);
  activeElement = null;
  activeElementInst = null;
}

/**
 * (For IE <=9) Handles a propertychange event, sending a `change` event if
 * the value of the active element has changed.
 */
function handlePropertyChange(nativeEvent) {
  if (nativeEvent.propertyName !== 'value') {
    return;
  }
  if (getInstIfValueChanged(activeElementInst)) {
    manualDispatchChangeEvent(nativeEvent);
  }
}

function handleEventsForInputEventPolyfill(topLevelType, target, targetInst) {
  if (topLevelType === 'topFocus') {
    // In IE8, we can capture almost all .value changes by adding a
    // propertychange handler and looking for events with propertyName
    // equal to 'value'
    // In IE9, propertychange fires for most input events but is buggy and
    // doesn't fire when text is deleted, but conveniently, selectionchange
    // appears to fire in all of the remaining cases so we catch those and
    // forward the event if the value has changed
    // In either case, we don't want to call the event handler if the value
    // is changed from JS so we redefine a setter for `.value` that updates
    // our activeElementValue variable, allowing us to ignore those changes
    //
    // stopWatching() should be a noop here but we call it just in case we
    // missed a blur event somehow.
    stopWatchingForValueChange();
    startWatchingForValueChange(target, targetInst);
  } else if (topLevelType === 'topBlur') {
    stopWatchingForValueChange();
  }
}

// For IE8 and IE9.
function getTargetInstForInputEventPolyfill(topLevelType, targetInst) {
  if (topLevelType === 'topSelectionChange' || topLevelType === 'topKeyUp' || topLevelType === 'topKeyDown') {
    // On the selectionchange event, the target is just document which isn't
    // helpful for us so just check activeElement instead.
    //
    // 99% of the time, keydown and keyup aren't necessary. IE8 fails to fire
    // propertychange on the first input event after setting `value` from a
    // script and fires only keydown, keypress, keyup. Catching keyup usually
    // gets it and catching keydown lets us fire an event for the first
    // keystroke if user does a key repeat (it'll be a little delayed: right
    // before the second keystroke). Other input methods (e.g., paste) seem to
    // fire selectionchange normally.
    return getInstIfValueChanged(activeElementInst);
  }
}

/**
 * SECTION: handle `click` event
 */
function shouldUseClickEvent(elem) {
  // Use the `click` event to detect changes to checkbox and radio inputs.
  // This approach works across all browsers, whereas `change` does not fire
  // until `blur` in IE8.
  var nodeName = elem.nodeName;
  return nodeName && nodeName.toLowerCase() === 'input' && (elem.type === 'checkbox' || elem.type === 'radio');
}

function getTargetInstForClickEvent(topLevelType, targetInst) {
  if (topLevelType === 'topClick') {
    return getInstIfValueChanged(targetInst);
  }
}

function getTargetInstForInputOrChangeEvent(topLevelType, targetInst) {
  if (topLevelType === 'topInput' || topLevelType === 'topChange') {
    return getInstIfValueChanged(targetInst);
  }
}

/**
 * This plugin creates an `onChange` event that normalizes change events
 * across form elements. This event fires at a time when it's possible to
 * change the element's value without seeing a flicker.
 *
 * Supported elements are:
 * - input (see `isTextInputElement`)
 * - textarea
 * - select
 */
var ChangeEventPlugin$1 = {

  eventTypes: eventTypes$1,

  _isInputEventSupported: isInputEventSupported,

  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    var targetNode = targetInst ? ReactDOMComponentTree$3.getNodeFromInstance(targetInst) : window;

    var getTargetInstFunc, handleEventFunc;
    if (shouldUseChangeEvent(targetNode)) {
      if (doesChangeEventBubble) {
        getTargetInstFunc = getTargetInstForChangeEvent;
      } else {
        handleEventFunc = handleEventsForChangeEventIE8;
      }
    } else if (isTextInputElement(targetNode)) {
      if (isInputEventSupported) {
        getTargetInstFunc = getTargetInstForInputOrChangeEvent;
      } else {
        getTargetInstFunc = getTargetInstForInputEventPolyfill;
        handleEventFunc = handleEventsForInputEventPolyfill;
      }
    } else if (shouldUseClickEvent(targetNode)) {
      getTargetInstFunc = getTargetInstForClickEvent;
    }

    if (getTargetInstFunc) {
      var inst = getTargetInstFunc(topLevelType, targetInst);
      if (inst) {
        var event = createAndAccumulateChangeEvent(inst, nativeEvent, nativeEventTarget);
        return event;
      }
    }

    if (handleEventFunc) {
      handleEventFunc(topLevelType, targetNode, targetInst);
    }
  }

};

var ChangeEventPlugin_1 = ChangeEventPlugin$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule DOMEventPluginOrder
 */

/**
 * Module that is injectable into `EventPluginHub`, that specifies a
 * deterministic ordering of `EventPlugin`s. A convenient way to reason about
 * plugins, without having to package every one of them. This is better than
 * having plugins be ordered in the same order that they are injected because
 * that ordering would be influenced by the packaging order.
 * `ResponderEventPlugin` must occur before `SimpleEventPlugin` so that
 * preventing default on events is convenient in `SimpleEventPlugin` handlers.
 */

var DOMEventPluginOrder$1 = ['ResponderEventPlugin', 'SimpleEventPlugin', 'TapEventPlugin', 'EnterLeaveEventPlugin', 'ChangeEventPlugin', 'SelectEventPlugin', 'BeforeInputEventPlugin'];

var DOMEventPluginOrder_1 = DOMEventPluginOrder$1;

var SyntheticEvent$4 = SyntheticEvent_1;

var getEventTarget$2 = getEventTarget_1;

/**
 * @interface UIEvent
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var UIEventInterface = {
  view: function (event) {
    if (event.view) {
      return event.view;
    }

    var target = getEventTarget$2(event);
    if (target.window === target) {
      // target is a window object
      return target;
    }

    var doc = target.ownerDocument;
    // TODO: Figure out why `ownerDocument` is sometimes undefined in IE8.
    if (doc) {
      return doc.defaultView || doc.parentWindow;
    } else {
      return window;
    }
  },
  detail: function (event) {
    return event.detail || 0;
  }
};

/**
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {string} dispatchMarker Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @extends {SyntheticEvent}
 */
function SyntheticUIEvent$1(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
  return SyntheticEvent$4.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}

SyntheticEvent$4.augmentClass(SyntheticUIEvent$1, UIEventInterface);

var SyntheticUIEvent_1 = SyntheticUIEvent$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ViewportMetrics
 */

var ViewportMetrics$1 = {

  currentScrollLeft: 0,

  currentScrollTop: 0,

  refreshScrollValues: function (scrollPosition) {
    ViewportMetrics$1.currentScrollLeft = scrollPosition.x;
    ViewportMetrics$1.currentScrollTop = scrollPosition.y;
  }

};

var ViewportMetrics_1 = ViewportMetrics$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule getEventModifierState
 */

/**
 * Translation from modifier key to the associated property in the event.
 * @see http://www.w3.org/TR/DOM-Level-3-Events/#keys-Modifiers
 */

var modifierKeyToProp = {
  'Alt': 'altKey',
  'Control': 'ctrlKey',
  'Meta': 'metaKey',
  'Shift': 'shiftKey'
};

// IE8 does not implement getModifierState so we simply map it to the only
// modifier keys exposed by the event itself, does not support Lock-keys.
// Currently, all major browsers except Chrome seems to support Lock-keys.
function modifierStateGetter(keyArg) {
  var syntheticEvent = this;
  var nativeEvent = syntheticEvent.nativeEvent;
  if (nativeEvent.getModifierState) {
    return nativeEvent.getModifierState(keyArg);
  }
  var keyProp = modifierKeyToProp[keyArg];
  return keyProp ? !!nativeEvent[keyProp] : false;
}

function getEventModifierState$1(nativeEvent) {
  return modifierStateGetter;
}

var getEventModifierState_1 = getEventModifierState$1;

var SyntheticUIEvent = SyntheticUIEvent_1;
var ViewportMetrics = ViewportMetrics_1;

var getEventModifierState = getEventModifierState_1;

/**
 * @interface MouseEvent
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var MouseEventInterface = {
  screenX: null,
  screenY: null,
  clientX: null,
  clientY: null,
  ctrlKey: null,
  shiftKey: null,
  altKey: null,
  metaKey: null,
  getModifierState: getEventModifierState,
  button: function (event) {
    // Webkit, Firefox, IE9+
    // which:  1 2 3
    // button: 0 1 2 (standard)
    var button = event.button;
    if ('which' in event) {
      return button;
    }
    // IE<9
    // which:  undefined
    // button: 0 0 0
    // button: 1 4 2 (onmouseup)
    return button === 2 ? 2 : button === 4 ? 1 : 0;
  },
  buttons: null,
  relatedTarget: function (event) {
    return event.relatedTarget || (event.fromElement === event.srcElement ? event.toElement : event.fromElement);
  },
  // "Proprietary" Interface.
  pageX: function (event) {
    return 'pageX' in event ? event.pageX : event.clientX + ViewportMetrics.currentScrollLeft;
  },
  pageY: function (event) {
    return 'pageY' in event ? event.pageY : event.clientY + ViewportMetrics.currentScrollTop;
  }
};

/**
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {string} dispatchMarker Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @extends {SyntheticUIEvent}
 */
function SyntheticMouseEvent$1(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
  return SyntheticUIEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}

SyntheticUIEvent.augmentClass(SyntheticMouseEvent$1, MouseEventInterface);

var SyntheticMouseEvent_1 = SyntheticMouseEvent$1;

var EventPropagators$3 = EventPropagators_1;
var ReactDOMComponentTree$5 = ReactDOMComponentTree_1;
var SyntheticMouseEvent = SyntheticMouseEvent_1;

var eventTypes$2 = {
  mouseEnter: {
    registrationName: 'onMouseEnter',
    dependencies: ['topMouseOut', 'topMouseOver']
  },
  mouseLeave: {
    registrationName: 'onMouseLeave',
    dependencies: ['topMouseOut', 'topMouseOver']
  }
};

var EnterLeaveEventPlugin$1 = {

  eventTypes: eventTypes$2,

  /**
   * For almost every interaction we care about, there will be both a top-level
   * `mouseover` and `mouseout` event that occurs. Only use `mouseout` so that
   * we do not extract duplicate events. However, moving the mouse into the
   * browser from outside will not fire a `mouseout` event. In this case, we use
   * the `mouseover` top-level event.
   */
  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    if (topLevelType === 'topMouseOver' && (nativeEvent.relatedTarget || nativeEvent.fromElement)) {
      return null;
    }
    if (topLevelType !== 'topMouseOut' && topLevelType !== 'topMouseOver') {
      // Must not be a mouse in or mouse out - ignoring.
      return null;
    }

    var win;
    if (nativeEventTarget.window === nativeEventTarget) {
      // `nativeEventTarget` is probably a window object.
      win = nativeEventTarget;
    } else {
      // TODO: Figure out why `ownerDocument` is sometimes undefined in IE8.
      var doc = nativeEventTarget.ownerDocument;
      if (doc) {
        win = doc.defaultView || doc.parentWindow;
      } else {
        win = window;
      }
    }

    var from;
    var to;
    if (topLevelType === 'topMouseOut') {
      from = targetInst;
      var related = nativeEvent.relatedTarget || nativeEvent.toElement;
      to = related ? ReactDOMComponentTree$5.getClosestInstanceFromNode(related) : null;
    } else {
      // Moving to a node from outside the window.
      from = null;
      to = targetInst;
    }

    if (from === to) {
      // Nothing pertains to our managed components.
      return null;
    }

    var fromNode = from == null ? win : ReactDOMComponentTree$5.getNodeFromInstance(from);
    var toNode = to == null ? win : ReactDOMComponentTree$5.getNodeFromInstance(to);

    var leave = SyntheticMouseEvent.getPooled(eventTypes$2.mouseLeave, from, nativeEvent, nativeEventTarget);
    leave.type = 'mouseleave';
    leave.target = fromNode;
    leave.relatedTarget = toNode;

    var enter = SyntheticMouseEvent.getPooled(eventTypes$2.mouseEnter, to, nativeEvent, nativeEventTarget);
    enter.type = 'mouseenter';
    enter.target = toNode;
    enter.relatedTarget = fromNode;

    EventPropagators$3.accumulateEnterLeaveDispatches(leave, enter, from, to);

    return [leave, enter];
  }

};

var EnterLeaveEventPlugin_1 = EnterLeaveEventPlugin$1;

var DOMProperty$3 = DOMProperty_1;

var MUST_USE_PROPERTY = DOMProperty$3.injection.MUST_USE_PROPERTY;
var HAS_BOOLEAN_VALUE = DOMProperty$3.injection.HAS_BOOLEAN_VALUE;
var HAS_NUMERIC_VALUE = DOMProperty$3.injection.HAS_NUMERIC_VALUE;
var HAS_POSITIVE_NUMERIC_VALUE = DOMProperty$3.injection.HAS_POSITIVE_NUMERIC_VALUE;
var HAS_OVERLOADED_BOOLEAN_VALUE = DOMProperty$3.injection.HAS_OVERLOADED_BOOLEAN_VALUE;

var HTMLDOMPropertyConfig$1 = {
  isCustomAttribute: RegExp.prototype.test.bind(new RegExp('^(data|aria)-[' + DOMProperty$3.ATTRIBUTE_NAME_CHAR + ']*$')),
  Properties: {
    /**
     * Standard Properties
     */
    accept: 0,
    acceptCharset: 0,
    accessKey: 0,
    action: 0,
    allowFullScreen: HAS_BOOLEAN_VALUE,
    allowTransparency: 0,
    alt: 0,
    // specifies target context for links with `preload` type
    as: 0,
    async: HAS_BOOLEAN_VALUE,
    autoComplete: 0,
    // autoFocus is polyfilled/normalized by AutoFocusUtils
    // autoFocus: HAS_BOOLEAN_VALUE,
    autoPlay: HAS_BOOLEAN_VALUE,
    capture: HAS_BOOLEAN_VALUE,
    cellPadding: 0,
    cellSpacing: 0,
    charSet: 0,
    challenge: 0,
    checked: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE,
    cite: 0,
    classID: 0,
    className: 0,
    cols: HAS_POSITIVE_NUMERIC_VALUE,
    colSpan: 0,
    content: 0,
    contentEditable: 0,
    contextMenu: 0,
    controls: HAS_BOOLEAN_VALUE,
    coords: 0,
    crossOrigin: 0,
    data: 0, // For `<object />` acts as `src`.
    dateTime: 0,
    'default': HAS_BOOLEAN_VALUE,
    defer: HAS_BOOLEAN_VALUE,
    dir: 0,
    disabled: HAS_BOOLEAN_VALUE,
    download: HAS_OVERLOADED_BOOLEAN_VALUE,
    draggable: 0,
    encType: 0,
    form: 0,
    formAction: 0,
    formEncType: 0,
    formMethod: 0,
    formNoValidate: HAS_BOOLEAN_VALUE,
    formTarget: 0,
    frameBorder: 0,
    headers: 0,
    height: 0,
    hidden: HAS_BOOLEAN_VALUE,
    high: 0,
    href: 0,
    hrefLang: 0,
    htmlFor: 0,
    httpEquiv: 0,
    id: 0,
    inputMode: 0,
    integrity: 0,
    is: 0,
    keyParams: 0,
    keyType: 0,
    kind: 0,
    label: 0,
    lang: 0,
    list: 0,
    loop: HAS_BOOLEAN_VALUE,
    low: 0,
    manifest: 0,
    marginHeight: 0,
    marginWidth: 0,
    max: 0,
    maxLength: 0,
    media: 0,
    mediaGroup: 0,
    method: 0,
    min: 0,
    minLength: 0,
    // Caution; `option.selected` is not updated if `select.multiple` is
    // disabled with `removeAttribute`.
    multiple: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE,
    muted: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE,
    name: 0,
    nonce: 0,
    noValidate: HAS_BOOLEAN_VALUE,
    open: HAS_BOOLEAN_VALUE,
    optimum: 0,
    pattern: 0,
    placeholder: 0,
    playsInline: HAS_BOOLEAN_VALUE,
    poster: 0,
    preload: 0,
    profile: 0,
    radioGroup: 0,
    readOnly: HAS_BOOLEAN_VALUE,
    referrerPolicy: 0,
    rel: 0,
    required: HAS_BOOLEAN_VALUE,
    reversed: HAS_BOOLEAN_VALUE,
    role: 0,
    rows: HAS_POSITIVE_NUMERIC_VALUE,
    rowSpan: HAS_NUMERIC_VALUE,
    sandbox: 0,
    scope: 0,
    scoped: HAS_BOOLEAN_VALUE,
    scrolling: 0,
    seamless: HAS_BOOLEAN_VALUE,
    selected: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE,
    shape: 0,
    size: HAS_POSITIVE_NUMERIC_VALUE,
    sizes: 0,
    // support for projecting regular DOM Elements via V1 named slots ( shadow dom )
    slot: 0,
    span: HAS_POSITIVE_NUMERIC_VALUE,
    spellCheck: 0,
    src: 0,
    srcDoc: 0,
    srcLang: 0,
    srcSet: 0,
    start: HAS_NUMERIC_VALUE,
    step: 0,
    style: 0,
    summary: 0,
    tabIndex: 0,
    target: 0,
    title: 0,
    // Setting .type throws on non-<input> tags
    type: 0,
    useMap: 0,
    value: 0,
    width: 0,
    wmode: 0,
    wrap: 0,

    /**
     * RDFa Properties
     */
    about: 0,
    datatype: 0,
    inlist: 0,
    prefix: 0,
    // property is also supported for OpenGraph in meta tags.
    property: 0,
    resource: 0,
    'typeof': 0,
    vocab: 0,

    /**
     * Non-standard Properties
     */
    // autoCapitalize and autoCorrect are supported in Mobile Safari for
    // keyboard hints.
    autoCapitalize: 0,
    autoCorrect: 0,
    // autoSave allows WebKit/Blink to persist values of input fields on page reloads
    autoSave: 0,
    // color is for Safari mask-icon link
    color: 0,
    // itemProp, itemScope, itemType are for
    // Microdata support. See http://schema.org/docs/gs.html
    itemProp: 0,
    itemScope: HAS_BOOLEAN_VALUE,
    itemType: 0,
    // itemID and itemRef are for Microdata support as well but
    // only specified in the WHATWG spec document. See
    // https://html.spec.whatwg.org/multipage/microdata.html#microdata-dom-api
    itemID: 0,
    itemRef: 0,
    // results show looking glass icon and recent searches on input
    // search fields in WebKit/Blink
    results: 0,
    // IE-only attribute that specifies security restrictions on an iframe
    // as an alternative to the sandbox attribute on IE<10
    security: 0,
    // IE-only attribute that controls focus behavior
    unselectable: 0
  },
  DOMAttributeNames: {
    acceptCharset: 'accept-charset',
    className: 'class',
    htmlFor: 'for',
    httpEquiv: 'http-equiv'
  },
  DOMPropertyNames: {}
};

var HTMLDOMPropertyConfig_1 = HTMLDOMPropertyConfig$1;

var EventPluginHub$4 = EventPluginHub_1;

function runEventQueueInBatch(events) {
  EventPluginHub$4.enqueueEvents(events);
  EventPluginHub$4.processEventQueue(false);
}

var ReactEventEmitterMixin$1 = {

  /**
   * Streams a fired top-level event to `EventPluginHub` where plugins have the
   * opportunity to create `ReactEvent`s to be dispatched.
   */
  handleTopLevel: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    var events = EventPluginHub$4.extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget);
    runEventQueueInBatch(events);
  }
};

var ReactEventEmitterMixin_1 = ReactEventEmitterMixin$1;

var ExecutionEnvironment$5 = ExecutionEnvironment;

/**
 * Generate a mapping of standard vendor prefixes using the defined style property and event name.
 *
 * @param {string} styleProp
 * @param {string} eventName
 * @returns {object}
 */
function makePrefixMap(styleProp, eventName) {
  var prefixes = {};

  prefixes[styleProp.toLowerCase()] = eventName.toLowerCase();
  prefixes['Webkit' + styleProp] = 'webkit' + eventName;
  prefixes['Moz' + styleProp] = 'moz' + eventName;
  prefixes['ms' + styleProp] = 'MS' + eventName;
  prefixes['O' + styleProp] = 'o' + eventName.toLowerCase();

  return prefixes;
}

/**
 * A list of event names to a configurable list of vendor prefixes.
 */
var vendorPrefixes = {
  animationend: makePrefixMap('Animation', 'AnimationEnd'),
  animationiteration: makePrefixMap('Animation', 'AnimationIteration'),
  animationstart: makePrefixMap('Animation', 'AnimationStart'),
  transitionend: makePrefixMap('Transition', 'TransitionEnd')
};

/**
 * Event names that have already been detected and prefixed (if applicable).
 */
var prefixedEventNames = {};

/**
 * Element to check for prefixes on.
 */
var style = {};

/**
 * Bootstrap if a DOM exists.
 */
if (ExecutionEnvironment$5.canUseDOM) {
  style = document.createElement('div').style;

  // On some platforms, in particular some releases of Android 4.x,
  // the un-prefixed "animation" and "transition" properties are defined on the
  // style object but the events that fire will still be prefixed, so we need
  // to check if the un-prefixed events are usable, and if not remove them from the map.
  if (!('AnimationEvent' in window)) {
    delete vendorPrefixes.animationend.animation;
    delete vendorPrefixes.animationiteration.animation;
    delete vendorPrefixes.animationstart.animation;
  }

  // Same as above
  if (!('TransitionEvent' in window)) {
    delete vendorPrefixes.transitionend.transition;
  }
}

/**
 * Attempts to determine the correct vendor prefixed event name.
 *
 * @param {string} eventName
 * @returns {string}
 */
function getVendorPrefixedEventName$1(eventName) {
  if (prefixedEventNames[eventName]) {
    return prefixedEventNames[eventName];
  } else if (!vendorPrefixes[eventName]) {
    return eventName;
  }

  var prefixMap = vendorPrefixes[eventName];

  for (var styleProp in prefixMap) {
    if (prefixMap.hasOwnProperty(styleProp) && styleProp in style) {
      return prefixedEventNames[eventName] = prefixMap[styleProp];
    }
  }

  return '';
}

var getVendorPrefixedEventName_1 = getVendorPrefixedEventName$1;

var EventPluginRegistry$2 = EventPluginRegistry_1;
var ReactEventEmitterMixin = ReactEventEmitterMixin_1;
var ViewportMetrics$2 = ViewportMetrics_1;

var getVendorPrefixedEventName = getVendorPrefixedEventName_1;
var isEventSupported$2 = isEventSupported_1;

/**
 * Summary of `ReactBrowserEventEmitter` event handling:
 *
 *  - Top-level delegation is used to trap most native browser events. This
 *    may only occur in the main thread and is the responsibility of
 *    ReactEventListener, which is injected and can therefore support pluggable
 *    event sources. This is the only work that occurs in the main thread.
 *
 *  - We normalize and de-duplicate events to account for browser quirks. This
 *    may be done in the worker thread.
 *
 *  - Forward these native events (with the associated top-level type used to
 *    trap it) to `EventPluginHub`, which in turn will ask plugins if they want
 *    to extract any synthetic events.
 *
 *  - The `EventPluginHub` will then process each event by annotating them with
 *    "dispatches", a sequence of listeners and IDs that care about that event.
 *
 *  - The `EventPluginHub` then dispatches the events.
 *
 * Overview of React and the event system:
 *
 * +------------+    .
 * |    DOM     |    .
 * +------------+    .
 *       |           .
 *       v           .
 * +------------+    .
 * | ReactEvent |    .
 * |  Listener  |    .
 * +------------+    .                         +-----------+
 *       |           .               +--------+|SimpleEvent|
 *       |           .               |         |Plugin     |
 * +-----|------+    .               v         +-----------+
 * |     |      |    .    +--------------+                    +------------+
 * |     +-----------.--->|EventPluginHub|                    |    Event   |
 * |            |    .    |              |     +-----------+  | Propagators|
 * | ReactEvent |    .    |              |     |TapEvent   |  |------------|
 * |  Emitter   |    .    |              |<---+|Plugin     |  |other plugin|
 * |            |    .    |              |     +-----------+  |  utilities |
 * |     +-----------.--->|              |                    +------------+
 * |     |      |    .    +--------------+
 * +-----|------+    .                ^        +-----------+
 *       |           .                |        |Enter/Leave|
 *       +           .                +-------+|Plugin     |
 * +-------------+   .                         +-----------+
 * | application |   .
 * |-------------|   .
 * |             |   .
 * |             |   .
 * +-------------+   .
 *                   .
 *    React Core     .  General Purpose Event Plugin System
 */

var hasEventPageXY;
var alreadyListeningTo = {};
var isMonitoringScrollValue = false;
var reactTopListenersCounter = 0;

// For events like 'submit' which don't consistently bubble (which we trap at a
// lower node than `document`), binding at `document` would cause duplicate
// events so we don't include them here
var topEventMapping = {
  topAbort: 'abort',
  topAnimationEnd: getVendorPrefixedEventName('animationend') || 'animationend',
  topAnimationIteration: getVendorPrefixedEventName('animationiteration') || 'animationiteration',
  topAnimationStart: getVendorPrefixedEventName('animationstart') || 'animationstart',
  topBlur: 'blur',
  topCancel: 'cancel',
  topCanPlay: 'canplay',
  topCanPlayThrough: 'canplaythrough',
  topChange: 'change',
  topClick: 'click',
  topClose: 'close',
  topCompositionEnd: 'compositionend',
  topCompositionStart: 'compositionstart',
  topCompositionUpdate: 'compositionupdate',
  topContextMenu: 'contextmenu',
  topCopy: 'copy',
  topCut: 'cut',
  topDoubleClick: 'dblclick',
  topDrag: 'drag',
  topDragEnd: 'dragend',
  topDragEnter: 'dragenter',
  topDragExit: 'dragexit',
  topDragLeave: 'dragleave',
  topDragOver: 'dragover',
  topDragStart: 'dragstart',
  topDrop: 'drop',
  topDurationChange: 'durationchange',
  topEmptied: 'emptied',
  topEncrypted: 'encrypted',
  topEnded: 'ended',
  topError: 'error',
  topFocus: 'focus',
  topInput: 'input',
  topKeyDown: 'keydown',
  topKeyPress: 'keypress',
  topKeyUp: 'keyup',
  topLoadedData: 'loadeddata',
  topLoadedMetadata: 'loadedmetadata',
  topLoadStart: 'loadstart',
  topMouseDown: 'mousedown',
  topMouseMove: 'mousemove',
  topMouseOut: 'mouseout',
  topMouseOver: 'mouseover',
  topMouseUp: 'mouseup',
  topPaste: 'paste',
  topPause: 'pause',
  topPlay: 'play',
  topPlaying: 'playing',
  topProgress: 'progress',
  topRateChange: 'ratechange',
  topScroll: 'scroll',
  topSeeked: 'seeked',
  topSeeking: 'seeking',
  topSelectionChange: 'selectionchange',
  topStalled: 'stalled',
  topSuspend: 'suspend',
  topTextInput: 'textInput',
  topTimeUpdate: 'timeupdate',
  topToggle: 'toggle',
  topTouchCancel: 'touchcancel',
  topTouchEnd: 'touchend',
  topTouchMove: 'touchmove',
  topTouchStart: 'touchstart',
  topTransitionEnd: getVendorPrefixedEventName('transitionend') || 'transitionend',
  topVolumeChange: 'volumechange',
  topWaiting: 'waiting',
  topWheel: 'wheel'
};

/**
 * To ensure no conflicts with other potential React instances on the page
 */
var topListenersIDKey = '_reactListenersID' + ('' + Math.random()).slice(2);

function getListeningForDocument(mountAt) {
  // In IE8, `mountAt` is a host object and doesn't have `hasOwnProperty`
  // directly.
  if (!Object.prototype.hasOwnProperty.call(mountAt, topListenersIDKey)) {
    mountAt[topListenersIDKey] = reactTopListenersCounter++;
    alreadyListeningTo[mountAt[topListenersIDKey]] = {};
  }
  return alreadyListeningTo[mountAt[topListenersIDKey]];
}

var ReactBrowserEventEmitter$1 = Object.assign({}, ReactEventEmitterMixin, {

  /**
   * Injectable event backend
   */
  ReactEventListener: null,

  injection: {
    /**
     * @param {object} ReactEventListener
     */
    injectReactEventListener: function (ReactEventListener) {
      ReactEventListener.setHandleTopLevel(ReactBrowserEventEmitter$1.handleTopLevel);
      ReactBrowserEventEmitter$1.ReactEventListener = ReactEventListener;
    }
  },

  /**
   * Sets whether or not any created callbacks should be enabled.
   *
   * @param {boolean} enabled True if callbacks should be enabled.
   */
  setEnabled: function (enabled) {
    if (ReactBrowserEventEmitter$1.ReactEventListener) {
      ReactBrowserEventEmitter$1.ReactEventListener.setEnabled(enabled);
    }
  },

  /**
   * @return {boolean} True if callbacks are enabled.
   */
  isEnabled: function () {
    return !!(ReactBrowserEventEmitter$1.ReactEventListener && ReactBrowserEventEmitter$1.ReactEventListener.isEnabled());
  },

  /**
   * We listen for bubbled touch events on the document object.
   *
   * Firefox v8.01 (and possibly others) exhibited strange behavior when
   * mounting `onmousemove` events at some node that was not the document
   * element. The symptoms were that if your mouse is not moving over something
   * contained within that mount point (for example on the background) the
   * top-level listeners for `onmousemove` won't be called. However, if you
   * register the `mousemove` on the document object, then it will of course
   * catch all `mousemove`s. This along with iOS quirks, justifies restricting
   * top-level listeners to the document object only, at least for these
   * movement types of events and possibly all events.
   *
   * @see http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html
   *
   * Also, `keyup`/`keypress`/`keydown` do not bubble to the window on IE, but
   * they bubble to document.
   *
   * @param {string} registrationName Name of listener (e.g. `onClick`).
   * @param {object} contentDocumentHandle Document which owns the container
   */
  listenTo: function (registrationName, contentDocumentHandle) {
    var mountAt = contentDocumentHandle;
    var isListening = getListeningForDocument(mountAt);
    var dependencies = EventPluginRegistry$2.registrationNameDependencies[registrationName];

    for (var i = 0; i < dependencies.length; i++) {
      var dependency = dependencies[i];
      if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) {
        if (dependency === 'topWheel') {
          if (isEventSupported$2('wheel')) {
            ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent('topWheel', 'wheel', mountAt);
          } else if (isEventSupported$2('mousewheel')) {
            ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent('topWheel', 'mousewheel', mountAt);
          } else {
            // Firefox needs to capture a different mouse scroll event.
            // @see http://www.quirksmode.org/dom/events/tests/scroll.html
            ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent('topWheel', 'DOMMouseScroll', mountAt);
          }
        } else if (dependency === 'topScroll') {

          if (isEventSupported$2('scroll', true)) {
            ReactBrowserEventEmitter$1.ReactEventListener.trapCapturedEvent('topScroll', 'scroll', mountAt);
          } else {
            ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent('topScroll', 'scroll', ReactBrowserEventEmitter$1.ReactEventListener.WINDOW_HANDLE);
          }
        } else if (dependency === 'topFocus' || dependency === 'topBlur') {

          if (isEventSupported$2('focus', true)) {
            ReactBrowserEventEmitter$1.ReactEventListener.trapCapturedEvent('topFocus', 'focus', mountAt);
            ReactBrowserEventEmitter$1.ReactEventListener.trapCapturedEvent('topBlur', 'blur', mountAt);
          } else if (isEventSupported$2('focusin')) {
            // IE has `focusin` and `focusout` events which bubble.
            // @see http://www.quirksmode.org/blog/archives/2008/04/delegating_the.html
            ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent('topFocus', 'focusin', mountAt);
            ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent('topBlur', 'focusout', mountAt);
          }

          // to make sure blur and focus event listeners are only attached once
          isListening.topBlur = true;
          isListening.topFocus = true;
        } else if (dependency === 'topCancel') {
          if (isEventSupported$2('cancel', true)) {
            ReactBrowserEventEmitter$1.ReactEventListener.trapCapturedEvent('topCancel', 'cancel', mountAt);
          }
          isListening.topCancel = true;
        } else if (dependency === 'topClose') {
          if (isEventSupported$2('close', true)) {
            ReactBrowserEventEmitter$1.ReactEventListener.trapCapturedEvent('topClose', 'close', mountAt);
          }
          isListening.topClose = true;
        } else if (topEventMapping.hasOwnProperty(dependency)) {
          ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent(dependency, topEventMapping[dependency], mountAt);
        }

        isListening[dependency] = true;
      }
    }
  },

  isListeningToAllDependencies: function (registrationName, mountAt) {
    var isListening = getListeningForDocument(mountAt);
    var dependencies = EventPluginRegistry$2.registrationNameDependencies[registrationName];
    for (var i = 0; i < dependencies.length; i++) {
      var dependency = dependencies[i];
      if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) {
        return false;
      }
    }
    return true;
  },

  trapBubbledEvent: function (topLevelType, handlerBaseName, handle) {
    return ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent(topLevelType, handlerBaseName, handle);
  },

  trapCapturedEvent: function (topLevelType, handlerBaseName, handle) {
    return ReactBrowserEventEmitter$1.ReactEventListener.trapCapturedEvent(topLevelType, handlerBaseName, handle);
  },

  /**
   * Protect against document.createEvent() returning null
   * Some popup blocker extensions appear to do this:
   * https://github.com/facebook/react/issues/6887
   */
  supportsEventPageXY: function () {
    if (!document.createEvent) {
      return false;
    }
    var ev = document.createEvent('MouseEvent');
    return ev != null && 'pageX' in ev;
  },

  /**
   * Listens to window scroll and resize events. We cache scroll values so that
   * application code can access them without triggering reflows.
   *
   * ViewportMetrics is only used by SyntheticMouse/TouchEvent and only when
   * pageX/pageY isn't supported (legacy browsers).
   *
   * NOTE: Scroll events do not bubble.
   *
   * @see http://www.quirksmode.org/dom/events/scroll.html
   */
  ensureScrollValueMonitoring: function () {
    if (hasEventPageXY === undefined) {
      hasEventPageXY = ReactBrowserEventEmitter$1.supportsEventPageXY();
    }
    if (!hasEventPageXY && !isMonitoringScrollValue) {
      var refresh = ViewportMetrics$2.refreshScrollValues;
      ReactBrowserEventEmitter$1.ReactEventListener.monitorScrollValue(refresh);
      isMonitoringScrollValue = true;
    }
  }

});

var ReactBrowserEventEmitter_1 = ReactBrowserEventEmitter$1;

var EventListener$1 = EventListener;
var ExecutionEnvironment$6 = ExecutionEnvironment;
var PooledClass$3 = PooledClass_1;
var ReactDOMComponentTree$6 = ReactDOMComponentTree_1;
var ReactGenericBatching$3 = ReactGenericBatching_1;
var ReactTypeOfWork$2 = ReactTypeOfWork;

var getEventTarget$3 = getEventTarget_1;
var getUnboundedScrollPosition$1 = getUnboundedScrollPosition;

var HostRoot = ReactTypeOfWork$2.HostRoot;

/**
 * Find the deepest React component completely containing the root of the
 * passed-in instance (for use when entire React trees are nested within each
 * other). If React trees are not nested, returns null.
 */

function findRootContainerNode(inst) {
  // TODO: It may be a good idea to cache this to prevent unnecessary DOM
  // traversal, but caching is difficult to do correctly without using a
  // mutation observer to listen for all DOM changes.
  if (typeof inst.tag === 'number') {
    while (inst['return']) {
      inst = inst['return'];
    }
    if (inst.tag !== HostRoot) {
      // This can happen if we're in a detached tree.
      return null;
    }
    return inst.stateNode.containerInfo;
  } else {
    while (inst._hostParent) {
      inst = inst._hostParent;
    }
    var rootNode = ReactDOMComponentTree$6.getNodeFromInstance(inst);
    return rootNode.parentNode;
  }
}

// Used to store ancestor hierarchy in top level callback
function TopLevelCallbackBookKeeping(topLevelType, nativeEvent, targetInst) {
  this.topLevelType = topLevelType;
  this.nativeEvent = nativeEvent;
  this.targetInst = targetInst;
  this.ancestors = [];
}
Object.assign(TopLevelCallbackBookKeeping.prototype, {
  destructor: function () {
    this.topLevelType = null;
    this.nativeEvent = null;
    this.targetInst = null;
    this.ancestors.length = 0;
  }
});
PooledClass$3.addPoolingTo(TopLevelCallbackBookKeeping, PooledClass$3.threeArgumentPooler);

function handleTopLevelImpl(bookKeeping) {
  var targetInst = bookKeeping.targetInst;

  // Loop through the hierarchy, in case there's any nested components.
  // It's important that we build the array of ancestors before calling any
  // event handlers, because event handlers can modify the DOM, leading to
  // inconsistencies with ReactMount's node cache. See #1105.
  var ancestor = targetInst;
  do {
    if (!ancestor) {
      bookKeeping.ancestors.push(ancestor);
      break;
    }
    var root = findRootContainerNode(ancestor);
    if (!root) {
      break;
    }
    bookKeeping.ancestors.push(ancestor);
    ancestor = ReactDOMComponentTree$6.getClosestInstanceFromNode(root);
  } while (ancestor);

  for (var i = 0; i < bookKeeping.ancestors.length; i++) {
    targetInst = bookKeeping.ancestors[i];
    ReactEventListener$1._handleTopLevel(bookKeeping.topLevelType, targetInst, bookKeeping.nativeEvent, getEventTarget$3(bookKeeping.nativeEvent));
  }
}

function scrollValueMonitor(cb) {
  var scrollPosition = getUnboundedScrollPosition$1(window);
  cb(scrollPosition);
}

var ReactEventListener$1 = {
  _enabled: true,
  _handleTopLevel: null,

  WINDOW_HANDLE: ExecutionEnvironment$6.canUseDOM ? window : null,

  setHandleTopLevel: function (handleTopLevel) {
    ReactEventListener$1._handleTopLevel = handleTopLevel;
  },

  setEnabled: function (enabled) {
    ReactEventListener$1._enabled = !!enabled;
  },

  isEnabled: function () {
    return ReactEventListener$1._enabled;
  },

  /**
   * Traps top-level events by using event bubbling.
   *
   * @param {string} topLevelType Record from `EventConstants`.
   * @param {string} handlerBaseName Event name (e.g. "click").
   * @param {object} element Element on which to attach listener.
   * @return {?object} An object with a remove function which will forcefully
   *                  remove the listener.
   * @internal
   */
  trapBubbledEvent: function (topLevelType, handlerBaseName, element) {
    if (!element) {
      return null;
    }
    return EventListener$1.listen(element, handlerBaseName, ReactEventListener$1.dispatchEvent.bind(null, topLevelType));
  },

  /**
   * Traps a top-level event by using event capturing.
   *
   * @param {string} topLevelType Record from `EventConstants`.
   * @param {string} handlerBaseName Event name (e.g. "click").
   * @param {object} element Element on which to attach listener.
   * @return {?object} An object with a remove function which will forcefully
   *                  remove the listener.
   * @internal
   */
  trapCapturedEvent: function (topLevelType, handlerBaseName, element) {
    if (!element) {
      return null;
    }
    return EventListener$1.capture(element, handlerBaseName, ReactEventListener$1.dispatchEvent.bind(null, topLevelType));
  },

  monitorScrollValue: function (refresh) {
    var callback = scrollValueMonitor.bind(null, refresh);
    EventListener$1.listen(window, 'scroll', callback);
  },

  dispatchEvent: function (topLevelType, nativeEvent) {
    if (!ReactEventListener$1._enabled) {
      return;
    }

    var nativeEventTarget = getEventTarget$3(nativeEvent);
    var targetInst = ReactDOMComponentTree$6.getClosestInstanceFromNode(nativeEventTarget);

    var bookKeeping = TopLevelCallbackBookKeeping.getPooled(topLevelType, nativeEvent, targetInst);

    try {
      // Event queue being processed in the same cycle allows
      // `preventDefault`.
      ReactGenericBatching$3.batchedUpdates(handleTopLevelImpl, bookKeeping);
    } finally {
      TopLevelCallbackBookKeeping.release(bookKeeping);
    }
  }
};

var ReactEventListener_1 = ReactEventListener$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule SVGDOMPropertyConfig
 */

var NS = {
  xlink: 'http://www.w3.org/1999/xlink',
  xml: 'http://www.w3.org/XML/1998/namespace'
};

// We use attributes for everything SVG so let's avoid some duplication and run
// code instead.
// The following are all specified in the HTML config already so we exclude here.
// - class (as className)
// - color
// - height
// - id
// - lang
// - max
// - media
// - method
// - min
// - name
// - style
// - target
// - type
// - width
var ATTRS = {
  accentHeight: 'accent-height',
  accumulate: 0,
  additive: 0,
  alignmentBaseline: 'alignment-baseline',
  allowReorder: 'allowReorder',
  alphabetic: 0,
  amplitude: 0,
  arabicForm: 'arabic-form',
  ascent: 0,
  attributeName: 'attributeName',
  attributeType: 'attributeType',
  autoReverse: 'autoReverse',
  azimuth: 0,
  baseFrequency: 'baseFrequency',
  baseProfile: 'baseProfile',
  baselineShift: 'baseline-shift',
  bbox: 0,
  begin: 0,
  bias: 0,
  by: 0,
  calcMode: 'calcMode',
  capHeight: 'cap-height',
  clip: 0,
  clipPath: 'clip-path',
  clipRule: 'clip-rule',
  clipPathUnits: 'clipPathUnits',
  colorInterpolation: 'color-interpolation',
  colorInterpolationFilters: 'color-interpolation-filters',
  colorProfile: 'color-profile',
  colorRendering: 'color-rendering',
  contentScriptType: 'contentScriptType',
  contentStyleType: 'contentStyleType',
  cursor: 0,
  cx: 0,
  cy: 0,
  d: 0,
  decelerate: 0,
  descent: 0,
  diffuseConstant: 'diffuseConstant',
  direction: 0,
  display: 0,
  divisor: 0,
  dominantBaseline: 'dominant-baseline',
  dur: 0,
  dx: 0,
  dy: 0,
  edgeMode: 'edgeMode',
  elevation: 0,
  enableBackground: 'enable-background',
  end: 0,
  exponent: 0,
  externalResourcesRequired: 'externalResourcesRequired',
  fill: 0,
  fillOpacity: 'fill-opacity',
  fillRule: 'fill-rule',
  filter: 0,
  filterRes: 'filterRes',
  filterUnits: 'filterUnits',
  floodColor: 'flood-color',
  floodOpacity: 'flood-opacity',
  focusable: 0,
  fontFamily: 'font-family',
  fontSize: 'font-size',
  fontSizeAdjust: 'font-size-adjust',
  fontStretch: 'font-stretch',
  fontStyle: 'font-style',
  fontVariant: 'font-variant',
  fontWeight: 'font-weight',
  format: 0,
  from: 0,
  fx: 0,
  fy: 0,
  g1: 0,
  g2: 0,
  glyphName: 'glyph-name',
  glyphOrientationHorizontal: 'glyph-orientation-horizontal',
  glyphOrientationVertical: 'glyph-orientation-vertical',
  glyphRef: 'glyphRef',
  gradientTransform: 'gradientTransform',
  gradientUnits: 'gradientUnits',
  hanging: 0,
  horizAdvX: 'horiz-adv-x',
  horizOriginX: 'horiz-origin-x',
  ideographic: 0,
  imageRendering: 'image-rendering',
  'in': 0,
  in2: 0,
  intercept: 0,
  k: 0,
  k1: 0,
  k2: 0,
  k3: 0,
  k4: 0,
  kernelMatrix: 'kernelMatrix',
  kernelUnitLength: 'kernelUnitLength',
  kerning: 0,
  keyPoints: 'keyPoints',
  keySplines: 'keySplines',
  keyTimes: 'keyTimes',
  lengthAdjust: 'lengthAdjust',
  letterSpacing: 'letter-spacing',
  lightingColor: 'lighting-color',
  limitingConeAngle: 'limitingConeAngle',
  local: 0,
  markerEnd: 'marker-end',
  markerMid: 'marker-mid',
  markerStart: 'marker-start',
  markerHeight: 'markerHeight',
  markerUnits: 'markerUnits',
  markerWidth: 'markerWidth',
  mask: 0,
  maskContentUnits: 'maskContentUnits',
  maskUnits: 'maskUnits',
  mathematical: 0,
  mode: 0,
  numOctaves: 'numOctaves',
  offset: 0,
  opacity: 0,
  operator: 0,
  order: 0,
  orient: 0,
  orientation: 0,
  origin: 0,
  overflow: 0,
  overlinePosition: 'overline-position',
  overlineThickness: 'overline-thickness',
  paintOrder: 'paint-order',
  panose1: 'panose-1',
  pathLength: 'pathLength',
  patternContentUnits: 'patternContentUnits',
  patternTransform: 'patternTransform',
  patternUnits: 'patternUnits',
  pointerEvents: 'pointer-events',
  points: 0,
  pointsAtX: 'pointsAtX',
  pointsAtY: 'pointsAtY',
  pointsAtZ: 'pointsAtZ',
  preserveAlpha: 'preserveAlpha',
  preserveAspectRatio: 'preserveAspectRatio',
  primitiveUnits: 'primitiveUnits',
  r: 0,
  radius: 0,
  refX: 'refX',
  refY: 'refY',
  renderingIntent: 'rendering-intent',
  repeatCount: 'repeatCount',
  repeatDur: 'repeatDur',
  requiredExtensions: 'requiredExtensions',
  requiredFeatures: 'requiredFeatures',
  restart: 0,
  result: 0,
  rotate: 0,
  rx: 0,
  ry: 0,
  scale: 0,
  seed: 0,
  shapeRendering: 'shape-rendering',
  slope: 0,
  spacing: 0,
  specularConstant: 'specularConstant',
  specularExponent: 'specularExponent',
  speed: 0,
  spreadMethod: 'spreadMethod',
  startOffset: 'startOffset',
  stdDeviation: 'stdDeviation',
  stemh: 0,
  stemv: 0,
  stitchTiles: 'stitchTiles',
  stopColor: 'stop-color',
  stopOpacity: 'stop-opacity',
  strikethroughPosition: 'strikethrough-position',
  strikethroughThickness: 'strikethrough-thickness',
  string: 0,
  stroke: 0,
  strokeDasharray: 'stroke-dasharray',
  strokeDashoffset: 'stroke-dashoffset',
  strokeLinecap: 'stroke-linecap',
  strokeLinejoin: 'stroke-linejoin',
  strokeMiterlimit: 'stroke-miterlimit',
  strokeOpacity: 'stroke-opacity',
  strokeWidth: 'stroke-width',
  surfaceScale: 'surfaceScale',
  systemLanguage: 'systemLanguage',
  tableValues: 'tableValues',
  targetX: 'targetX',
  targetY: 'targetY',
  textAnchor: 'text-anchor',
  textDecoration: 'text-decoration',
  textRendering: 'text-rendering',
  textLength: 'textLength',
  to: 0,
  transform: 0,
  u1: 0,
  u2: 0,
  underlinePosition: 'underline-position',
  underlineThickness: 'underline-thickness',
  unicode: 0,
  unicodeBidi: 'unicode-bidi',
  unicodeRange: 'unicode-range',
  unitsPerEm: 'units-per-em',
  vAlphabetic: 'v-alphabetic',
  vHanging: 'v-hanging',
  vIdeographic: 'v-ideographic',
  vMathematical: 'v-mathematical',
  values: 0,
  vectorEffect: 'vector-effect',
  version: 0,
  vertAdvY: 'vert-adv-y',
  vertOriginX: 'vert-origin-x',
  vertOriginY: 'vert-origin-y',
  viewBox: 'viewBox',
  viewTarget: 'viewTarget',
  visibility: 0,
  widths: 0,
  wordSpacing: 'word-spacing',
  writingMode: 'writing-mode',
  x: 0,
  xHeight: 'x-height',
  x1: 0,
  x2: 0,
  xChannelSelector: 'xChannelSelector',
  xlinkActuate: 'xlink:actuate',
  xlinkArcrole: 'xlink:arcrole',
  xlinkHref: 'xlink:href',
  xlinkRole: 'xlink:role',
  xlinkShow: 'xlink:show',
  xlinkTitle: 'xlink:title',
  xlinkType: 'xlink:type',
  xmlBase: 'xml:base',
  xmlns: 0,
  xmlnsXlink: 'xmlns:xlink',
  xmlLang: 'xml:lang',
  xmlSpace: 'xml:space',
  y: 0,
  y1: 0,
  y2: 0,
  yChannelSelector: 'yChannelSelector',
  z: 0,
  zoomAndPan: 'zoomAndPan'
};

var SVGDOMPropertyConfig$1 = {
  Properties: {},
  DOMAttributeNamespaces: {
    xlinkActuate: NS.xlink,
    xlinkArcrole: NS.xlink,
    xlinkHref: NS.xlink,
    xlinkRole: NS.xlink,
    xlinkShow: NS.xlink,
    xlinkTitle: NS.xlink,
    xlinkType: NS.xlink,
    xmlBase: NS.xml,
    xmlLang: NS.xml,
    xmlSpace: NS.xml
  },
  DOMAttributeNames: {}
};

Object.keys(ATTRS).forEach(function (key) {
  SVGDOMPropertyConfig$1.Properties[key] = 0;
  if (ATTRS[key]) {
    SVGDOMPropertyConfig$1.DOMAttributeNames[key] = ATTRS[key];
  }
});

var SVGDOMPropertyConfig_1 = SVGDOMPropertyConfig$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule getNodeForCharacterOffset
 */

/**
 * Given any node return the first leaf node without children.
 *
 * @param {DOMElement|DOMTextNode} node
 * @return {DOMElement|DOMTextNode}
 */

function getLeafNode(node) {
  while (node && node.firstChild) {
    node = node.firstChild;
  }
  return node;
}

/**
 * Get the next sibling within a container. This will walk up the
 * DOM if a node's siblings have been exhausted.
 *
 * @param {DOMElement|DOMTextNode} node
 * @return {?DOMElement|DOMTextNode}
 */
function getSiblingNode(node) {
  while (node) {
    if (node.nextSibling) {
      return node.nextSibling;
    }
    node = node.parentNode;
  }
}

/**
 * Get object describing the nodes which contain characters at offset.
 *
 * @param {DOMElement|DOMTextNode} root
 * @param {number} offset
 * @return {?object}
 */
function getNodeForCharacterOffset$1(root, offset) {
  var node = getLeafNode(root);
  var nodeStart = 0;
  var nodeEnd = 0;

  while (node) {
    if (node.nodeType === 3) {
      nodeEnd = nodeStart + node.textContent.length;

      if (nodeStart <= offset && nodeEnd >= offset) {
        return {
          node: node,
          offset: offset - nodeStart
        };
      }

      nodeStart = nodeEnd;
    }

    node = getLeafNode(getSiblingNode(node));
  }
}

var getNodeForCharacterOffset_1 = getNodeForCharacterOffset$1;

var ExecutionEnvironment$8 = ExecutionEnvironment;

var getNodeForCharacterOffset = getNodeForCharacterOffset_1;
var getTextContentAccessor$2 = getTextContentAccessor_1;

/**
 * While `isCollapsed` is available on the Selection object and `collapsed`
 * is available on the Range object, IE11 sometimes gets them wrong.
 * If the anchor/focus nodes and offsets are the same, the range is collapsed.
 */
function isCollapsed(anchorNode, anchorOffset, focusNode$$1, focusOffset) {
  return anchorNode === focusNode$$1 && anchorOffset === focusOffset;
}

/**
 * Get the appropriate anchor and focus node/offset pairs for IE.
 *
 * The catch here is that IE's selection API doesn't provide information
 * about whether the selection is forward or backward, so we have to
 * behave as though it's always forward.
 *
 * IE text differs from modern selection in that it behaves as though
 * block elements end with a new line. This means character offsets will
 * differ between the two APIs.
 *
 * @param {DOMElement} node
 * @return {object}
 */
function getIEOffsets(node) {
  var selection = document.selection;
  var selectedRange = selection.createRange();
  var selectedLength = selectedRange.text.length;

  // Duplicate selection so we can move range without breaking user selection.
  var fromStart = selectedRange.duplicate();
  fromStart.moveToElementText(node);
  fromStart.setEndPoint('EndToStart', selectedRange);

  var startOffset = fromStart.text.length;
  var endOffset = startOffset + selectedLength;

  return {
    start: startOffset,
    end: endOffset
  };
}

/**
 * @param {DOMElement} node
 * @return {?object}
 */
function getModernOffsets(node) {
  var selection = window.getSelection && window.getSelection();

  if (!selection || selection.rangeCount === 0) {
    return null;
  }

  var anchorNode = selection.anchorNode;
  var anchorOffset = selection.anchorOffset;
  var focusNode$$1 = selection.focusNode;
  var focusOffset = selection.focusOffset;

  var currentRange = selection.getRangeAt(0);

  // In Firefox, range.startContainer and range.endContainer can be "anonymous
  // divs", e.g. the up/down buttons on an <input type="number">. Anonymous
  // divs do not seem to expose properties, triggering a "Permission denied
  // error" if any of its properties are accessed. The only seemingly possible
  // way to avoid erroring is to access a property that typically works for
  // non-anonymous divs and catch any error that may otherwise arise. See
  // https://bugzilla.mozilla.org/show_bug.cgi?id=208427
  try {
    /* eslint-disable no-unused-expressions */
    currentRange.startContainer.nodeType;
    currentRange.endContainer.nodeType;
    /* eslint-enable no-unused-expressions */
  } catch (e) {
    return null;
  }

  // If the node and offset values are the same, the selection is collapsed.
  // `Selection.isCollapsed` is available natively, but IE sometimes gets
  // this value wrong.
  var isSelectionCollapsed = isCollapsed(selection.anchorNode, selection.anchorOffset, selection.focusNode, selection.focusOffset);

  var rangeLength = isSelectionCollapsed ? 0 : currentRange.toString().length;

  var tempRange = currentRange.cloneRange();
  tempRange.selectNodeContents(node);
  tempRange.setEnd(currentRange.startContainer, currentRange.startOffset);

  var isTempRangeCollapsed = isCollapsed(tempRange.startContainer, tempRange.startOffset, tempRange.endContainer, tempRange.endOffset);

  var start = isTempRangeCollapsed ? 0 : tempRange.toString().length;
  var end = start + rangeLength;

  // Detect whether the selection is backward.
  var detectionRange = document.createRange();
  detectionRange.setStart(anchorNode, anchorOffset);
  detectionRange.setEnd(focusNode$$1, focusOffset);
  var isBackward = detectionRange.collapsed;

  return {
    start: isBackward ? end : start,
    end: isBackward ? start : end
  };
}

/**
 * @param {DOMElement|DOMTextNode} node
 * @param {object} offsets
 */
function setIEOffsets(node, offsets) {
  var range = document.selection.createRange().duplicate();
  var start, end;

  if (offsets.end === undefined) {
    start = offsets.start;
    end = start;
  } else if (offsets.start > offsets.end) {
    start = offsets.end;
    end = offsets.start;
  } else {
    start = offsets.start;
    end = offsets.end;
  }

  range.moveToElementText(node);
  range.moveStart('character', start);
  range.setEndPoint('EndToStart', range);
  range.moveEnd('character', end - start);
  range.select();
}

/**
 * In modern non-IE browsers, we can support both forward and backward
 * selections.
 *
 * Note: IE10+ supports the Selection object, but it does not support
 * the `extend` method, which means that even in modern IE, it's not possible
 * to programmatically create a backward selection. Thus, for all IE
 * versions, we use the old IE API to create our selections.
 *
 * @param {DOMElement|DOMTextNode} node
 * @param {object} offsets
 */
function setModernOffsets(node, offsets) {
  if (!window.getSelection) {
    return;
  }

  var selection = window.getSelection();
  var length = node[getTextContentAccessor$2()].length;
  var start = Math.min(offsets.start, length);
  var end = offsets.end === undefined ? start : Math.min(offsets.end, length);

  // IE 11 uses modern selection, but doesn't support the extend method.
  // Flip backward selections, so we can set with a single range.
  if (!selection.extend && start > end) {
    var temp = end;
    end = start;
    start = temp;
  }

  var startMarker = getNodeForCharacterOffset(node, start);
  var endMarker = getNodeForCharacterOffset(node, end);

  if (startMarker && endMarker) {
    var range = document.createRange();
    range.setStart(startMarker.node, startMarker.offset);
    selection.removeAllRanges();

    if (start > end) {
      selection.addRange(range);
      selection.extend(endMarker.node, endMarker.offset);
    } else {
      range.setEnd(endMarker.node, endMarker.offset);
      selection.addRange(range);
    }
  }
}

var useIEOffsets = ExecutionEnvironment$8.canUseDOM && 'selection' in document && !('getSelection' in window);

var ReactDOMSelection$1 = {
  /**
   * @param {DOMElement} node
   */
  getOffsets: useIEOffsets ? getIEOffsets : getModernOffsets,

  /**
   * @param {DOMElement|DOMTextNode} node
   * @param {object} offsets
   */
  setOffsets: useIEOffsets ? setIEOffsets : setModernOffsets
};

var ReactDOMSelection_1 = ReactDOMSelection$1;

var ReactDOMSelection = ReactDOMSelection_1;

var containsNode$1 = containsNode;
var focusNode$1 = focusNode;
var getActiveElement$2 = getActiveElement;

function isInDocument(node) {
  return containsNode$1(document.documentElement, node);
}

/**
 * @ReactInputSelection: React input selection module. Based on Selection.js,
 * but modified to be suitable for react and has a couple of bug fixes (doesn't
 * assume buttons have range selections allowed).
 * Input selection module for React.
 */
var ReactInputSelection$1 = {

  hasSelectionCapabilities: function (elem) {
    var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase();
    return nodeName && (nodeName === 'input' && elem.type === 'text' || nodeName === 'textarea' || elem.contentEditable === 'true');
  },

  getSelectionInformation: function () {
    var focusedElem = getActiveElement$2();
    return {
      focusedElem: focusedElem,
      selectionRange: ReactInputSelection$1.hasSelectionCapabilities(focusedElem) ? ReactInputSelection$1.getSelection(focusedElem) : null
    };
  },

  /**
   * @restoreSelection: If any selection information was potentially lost,
   * restore it. This is useful when performing operations that could remove dom
   * nodes and place them back in, resulting in focus being lost.
   */
  restoreSelection: function (priorSelectionInformation) {
    var curFocusedElem = getActiveElement$2();
    var priorFocusedElem = priorSelectionInformation.focusedElem;
    var priorSelectionRange = priorSelectionInformation.selectionRange;
    if (curFocusedElem !== priorFocusedElem && isInDocument(priorFocusedElem)) {
      if (ReactInputSelection$1.hasSelectionCapabilities(priorFocusedElem)) {
        ReactInputSelection$1.setSelection(priorFocusedElem, priorSelectionRange);
      }

      // Focusing a node can change the scroll position, which is undesirable
      var ancestors = [];
      var ancestor = priorFocusedElem;
      while (ancestor = ancestor.parentNode) {
        if (ancestor.nodeType === 1) {
          ancestors.push({
            element: ancestor,
            left: ancestor.scrollLeft,
            top: ancestor.scrollTop
          });
        }
      }

      focusNode$1(priorFocusedElem);

      for (var i = 0; i < ancestors.length; i++) {
        var info = ancestors[i];
        info.element.scrollLeft = info.left;
        info.element.scrollTop = info.top;
      }
    }
  },

  /**
   * @getSelection: Gets the selection bounds of a focused textarea, input or
   * contentEditable node.
   * -@input: Look up selection bounds of this input
   * -@return {start: selectionStart, end: selectionEnd}
   */
  getSelection: function (input) {
    var selection;

    if ('selectionStart' in input) {
      // Modern browser with input or textarea.
      selection = {
        start: input.selectionStart,
        end: input.selectionEnd
      };
    } else if (document.selection && input.nodeName && input.nodeName.toLowerCase() === 'input') {
      // IE8 input.
      var range = document.selection.createRange();
      // There can only be one selection per document in IE, so it must
      // be in our element.
      if (range.parentElement() === input) {
        selection = {
          start: -range.moveStart('character', -input.value.length),
          end: -range.moveEnd('character', -input.value.length)
        };
      }
    } else {
      // Content editable or old IE textarea.
      selection = ReactDOMSelection.getOffsets(input);
    }

    return selection || { start: 0, end: 0 };
  },

  /**
   * @setSelection: Sets the selection bounds of a textarea or input and focuses
   * the input.
   * -@input     Set selection bounds of this input or textarea
   * -@offsets   Object of same form that is returned from get*
   */
  setSelection: function (input, offsets) {
    var start = offsets.start;
    var end = offsets.end;
    if (end === undefined) {
      end = start;
    }

    if ('selectionStart' in input) {
      input.selectionStart = start;
      input.selectionEnd = Math.min(end, input.value.length);
    } else if (document.selection && input.nodeName && input.nodeName.toLowerCase() === 'input') {
      var range = input.createTextRange();
      range.collapse(true);
      range.moveStart('character', start);
      range.moveEnd('character', end - start);
      range.select();
    } else {
      ReactDOMSelection.setOffsets(input, offsets);
    }
  }
};

var ReactInputSelection_1 = ReactInputSelection$1;

var EventPropagators$4 = EventPropagators_1;
var ExecutionEnvironment$7 = ExecutionEnvironment;
var ReactBrowserEventEmitter$2 = ReactBrowserEventEmitter_1;
var ReactDOMComponentTree$7 = ReactDOMComponentTree_1;
var ReactInputSelection = ReactInputSelection_1;
var SyntheticEvent$5 = SyntheticEvent_1;

var getActiveElement$1 = getActiveElement;
var isTextInputElement$2 = isTextInputElement_1;
var shallowEqual$1 = shallowEqual;

var skipSelectionChangeEvent = ExecutionEnvironment$7.canUseDOM && 'documentMode' in document && document.documentMode <= 11;

var eventTypes$3 = {
  select: {
    phasedRegistrationNames: {
      bubbled: 'onSelect',
      captured: 'onSelectCapture'
    },
    dependencies: ['topBlur', 'topContextMenu', 'topFocus', 'topKeyDown', 'topKeyUp', 'topMouseDown', 'topMouseUp', 'topSelectionChange']
  }
};

var activeElement$1 = null;
var activeElementInst$1 = null;
var lastSelection = null;
var mouseDown = false;

// Track whether all listeners exists for this plugin. If none exist, we do
// not extract events. See #3639.
var isListeningToAllDependencies = ReactBrowserEventEmitter$2.isListeningToAllDependencies;

/**
 * Get an object which is a unique representation of the current selection.
 *
 * The return value will not be consistent across nodes or browsers, but
 * two identical selections on the same node will return identical objects.
 *
 * @param {DOMElement} node
 * @return {object}
 */
function getSelection(node) {
  if ('selectionStart' in node && ReactInputSelection.hasSelectionCapabilities(node)) {
    return {
      start: node.selectionStart,
      end: node.selectionEnd
    };
  } else if (window.getSelection) {
    var selection = window.getSelection();
    return {
      anchorNode: selection.anchorNode,
      anchorOffset: selection.anchorOffset,
      focusNode: selection.focusNode,
      focusOffset: selection.focusOffset
    };
  } else if (document.selection) {
    var range = document.selection.createRange();
    return {
      parentElement: range.parentElement(),
      text: range.text,
      top: range.boundingTop,
      left: range.boundingLeft
    };
  }
}

/**
 * Poll selection to see whether it's changed.
 *
 * @param {object} nativeEvent
 * @return {?SyntheticEvent}
 */
function constructSelectEvent(nativeEvent, nativeEventTarget) {
  // Ensure we have the right element, and that the user is not dragging a
  // selection (this matches native `select` event behavior). In HTML5, select
  // fires only on input and textarea thus if there's no focused element we
  // won't dispatch.
  if (mouseDown || activeElement$1 == null || activeElement$1 !== getActiveElement$1()) {
    return null;
  }

  // Only fire when selection has actually changed.
  var currentSelection = getSelection(activeElement$1);
  if (!lastSelection || !shallowEqual$1(lastSelection, currentSelection)) {
    lastSelection = currentSelection;

    var syntheticEvent = SyntheticEvent$5.getPooled(eventTypes$3.select, activeElementInst$1, nativeEvent, nativeEventTarget);

    syntheticEvent.type = 'select';
    syntheticEvent.target = activeElement$1;

    EventPropagators$4.accumulateTwoPhaseDispatches(syntheticEvent);

    return syntheticEvent;
  }

  return null;
}

/**
 * This plugin creates an `onSelect` event that normalizes select events
 * across form elements.
 *
 * Supported elements are:
 * - input (see `isTextInputElement`)
 * - textarea
 * - contentEditable
 *
 * This differs from native browser implementations in the following ways:
 * - Fires on contentEditable fields as well as inputs.
 * - Fires for collapsed selection.
 * - Fires after user input.
 */
var SelectEventPlugin$1 = {

  eventTypes: eventTypes$3,

  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    var doc = nativeEventTarget.window === nativeEventTarget ? nativeEventTarget.document : nativeEventTarget.nodeType === 9 ? nativeEventTarget : nativeEventTarget.ownerDocument;
    if (!doc || !isListeningToAllDependencies('onSelect', doc)) {
      return null;
    }

    var targetNode = targetInst ? ReactDOMComponentTree$7.getNodeFromInstance(targetInst) : window;

    switch (topLevelType) {
      // Track the input node that has focus.
      case 'topFocus':
        if (isTextInputElement$2(targetNode) || targetNode.contentEditable === 'true') {
          activeElement$1 = targetNode;
          activeElementInst$1 = targetInst;
          lastSelection = null;
        }
        break;
      case 'topBlur':
        activeElement$1 = null;
        activeElementInst$1 = null;
        lastSelection = null;
        break;

      // Don't fire the event while the user is dragging. This matches the
      // semantics of the native select event.
      case 'topMouseDown':
        mouseDown = true;
        break;
      case 'topContextMenu':
      case 'topMouseUp':
        mouseDown = false;
        return constructSelectEvent(nativeEvent, nativeEventTarget);

      // Chrome and IE fire non-standard event when selection is changed (and
      // sometimes when it hasn't). IE's event fires out of order with respect
      // to key and input events on deletion, so we discard it.
      //
      // Firefox doesn't support selectionchange, so check selection status
      // after each key entry. The selection changes after keydown and before
      // keyup, but we check on keydown as well in the case of holding down a
      // key, when multiple keydown events are fired but only one keyup is.
      // This is also our approach for IE handling, for the reason above.
      case 'topSelectionChange':
        if (skipSelectionChangeEvent) {
          break;
        }
      // falls through
      case 'topKeyDown':
      case 'topKeyUp':
        return constructSelectEvent(nativeEvent, nativeEventTarget);
    }

    return null;
  }

};

var SelectEventPlugin_1 = SelectEventPlugin$1;

var SyntheticEvent$7 = SyntheticEvent_1;

/**
 * @interface Event
 * @see http://www.w3.org/TR/css3-animations/#AnimationEvent-interface
 * @see https://developer.mozilla.org/en-US/docs/Web/API/AnimationEvent
 */
var AnimationEventInterface = {
  animationName: null,
  elapsedTime: null,
  pseudoElement: null
};

/**
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {string} dispatchMarker Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @extends {SyntheticEvent}
 */
function SyntheticAnimationEvent$1(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
  return SyntheticEvent$7.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}

SyntheticEvent$7.augmentClass(SyntheticAnimationEvent$1, AnimationEventInterface);

var SyntheticAnimationEvent_1 = SyntheticAnimationEvent$1;

var SyntheticEvent$8 = SyntheticEvent_1;

/**
 * @interface Event
 * @see http://www.w3.org/TR/clipboard-apis/
 */
var ClipboardEventInterface = {
  clipboardData: function (event) {
    return 'clipboardData' in event ? event.clipboardData : window.clipboardData;
  }
};

/**
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {string} dispatchMarker Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @extends {SyntheticUIEvent}
 */
function SyntheticClipboardEvent$1(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
  return SyntheticEvent$8.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}

SyntheticEvent$8.augmentClass(SyntheticClipboardEvent$1, ClipboardEventInterface);

var SyntheticClipboardEvent_1 = SyntheticClipboardEvent$1;

var SyntheticUIEvent$3 = SyntheticUIEvent_1;

/**
 * @interface FocusEvent
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var FocusEventInterface = {
  relatedTarget: null
};

/**
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {string} dispatchMarker Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @extends {SyntheticUIEvent}
 */
function SyntheticFocusEvent$1(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
  return SyntheticUIEvent$3.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}

SyntheticUIEvent$3.augmentClass(SyntheticFocusEvent$1, FocusEventInterface);

var SyntheticFocusEvent_1 = SyntheticFocusEvent$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule getEventCharCode
 */

/**
 * `charCode` represents the actual "character code" and is safe to use with
 * `String.fromCharCode`. As such, only keys that correspond to printable
 * characters produce a valid `charCode`, the only exception to this is Enter.
 * The Tab-key is considered non-printable and does not have a `charCode`,
 * presumably because it does not produce a tab-character in browsers.
 *
 * @param {object} nativeEvent Native browser event.
 * @return {number} Normalized `charCode` property.
 */

function getEventCharCode$2(nativeEvent) {
  var charCode;
  var keyCode = nativeEvent.keyCode;

  if ('charCode' in nativeEvent) {
    charCode = nativeEvent.charCode;

    // FF does not set `charCode` for the Enter-key, check against `keyCode`.
    if (charCode === 0 && keyCode === 13) {
      charCode = 13;
    }
  } else {
    // IE8 does not implement `charCode`, but `keyCode` has the correct value.
    charCode = keyCode;
  }

  // Some non-printable keys are reported in `charCode`/`keyCode`, discard them.
  // Must not discard the (non-)printable Enter-key.
  if (charCode >= 32 || charCode === 13) {
    return charCode;
  }

  return 0;
}

var getEventCharCode_1 = getEventCharCode$2;

var getEventCharCode$3 = getEventCharCode_1;

/**
 * Normalization of deprecated HTML5 `key` values
 * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names
 */
var normalizeKey = {
  'Esc': 'Escape',
  'Spacebar': ' ',
  'Left': 'ArrowLeft',
  'Up': 'ArrowUp',
  'Right': 'ArrowRight',
  'Down': 'ArrowDown',
  'Del': 'Delete',
  'Win': 'OS',
  'Menu': 'ContextMenu',
  'Apps': 'ContextMenu',
  'Scroll': 'ScrollLock',
  'MozPrintableKey': 'Unidentified'
};

/**
 * Translation from legacy `keyCode` to HTML5 `key`
 * Only special keys supported, all others depend on keyboard layout or browser
 * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names
 */
var translateToKey = {
  8: 'Backspace',
  9: 'Tab',
  12: 'Clear',
  13: 'Enter',
  16: 'Shift',
  17: 'Control',
  18: 'Alt',
  19: 'Pause',
  20: 'CapsLock',
  27: 'Escape',
  32: ' ',
  33: 'PageUp',
  34: 'PageDown',
  35: 'End',
  36: 'Home',
  37: 'ArrowLeft',
  38: 'ArrowUp',
  39: 'ArrowRight',
  40: 'ArrowDown',
  45: 'Insert',
  46: 'Delete',
  112: 'F1', 113: 'F2', 114: 'F3', 115: 'F4', 116: 'F5', 117: 'F6',
  118: 'F7', 119: 'F8', 120: 'F9', 121: 'F10', 122: 'F11', 123: 'F12',
  144: 'NumLock',
  145: 'ScrollLock',
  224: 'Meta'
};

/**
 * @param {object} nativeEvent Native browser event.
 * @return {string} Normalized `key` property.
 */
function getEventKey$1(nativeEvent) {
  if (nativeEvent.key) {
    // Normalize inconsistent values reported by browsers due to
    // implementations of a working draft specification.

    // FireFox implements `key` but returns `MozPrintableKey` for all
    // printable characters (normalized to `Unidentified`), ignore it.
    var key = normalizeKey[nativeEvent.key] || nativeEvent.key;
    if (key !== 'Unidentified') {
      return key;
    }
  }

  // Browser does not implement `key`, polyfill as much of it as we can.
  if (nativeEvent.type === 'keypress') {
    var charCode = getEventCharCode$3(nativeEvent);

    // The enter-key is technically both printable and non-printable and can
    // thus be captured by `keypress`, no other non-printable key should.
    return charCode === 13 ? 'Enter' : String.fromCharCode(charCode);
  }
  if (nativeEvent.type === 'keydown' || nativeEvent.type === 'keyup') {
    // While user keyboard layout determines the actual meaning of each
    // `keyCode` value, almost all function keys have a universal value.
    return translateToKey[nativeEvent.keyCode] || 'Unidentified';
  }
  return '';
}

var getEventKey_1 = getEventKey$1;

var SyntheticUIEvent$4 = SyntheticUIEvent_1;

var getEventCharCode$1 = getEventCharCode_1;
var getEventKey = getEventKey_1;
var getEventModifierState$2 = getEventModifierState_1;

/**
 * @interface KeyboardEvent
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var KeyboardEventInterface = {
  key: getEventKey,
  location: null,
  ctrlKey: null,
  shiftKey: null,
  altKey: null,
  metaKey: null,
  repeat: null,
  locale: null,
  getModifierState: getEventModifierState$2,
  // Legacy Interface
  charCode: function (event) {
    // `charCode` is the result of a KeyPress event and represents the value of
    // the actual printable character.

    // KeyPress is deprecated, but its replacement is not yet final and not
    // implemented in any major browser. Only KeyPress has charCode.
    if (event.type === 'keypress') {
      return getEventCharCode$1(event);
    }
    return 0;
  },
  keyCode: function (event) {
    // `keyCode` is the result of a KeyDown/Up event and represents the value of
    // physical keyboard key.

    // The actual meaning of the value depends on the users' keyboard layout
    // which cannot be detected. Assuming that it is a US keyboard layout
    // provides a surprisingly accurate mapping for US and European users.
    // Due to this, it is left to the user to implement at this time.
    if (event.type === 'keydown' || event.type === 'keyup') {
      return event.keyCode;
    }
    return 0;
  },
  which: function (event) {
    // `which` is an alias for either `keyCode` or `charCode` depending on the
    // type of the event.
    if (event.type === 'keypress') {
      return getEventCharCode$1(event);
    }
    if (event.type === 'keydown' || event.type === 'keyup') {
      return event.keyCode;
    }
    return 0;
  }
};

/**
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {string} dispatchMarker Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @extends {SyntheticUIEvent}
 */
function SyntheticKeyboardEvent$1(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
  return SyntheticUIEvent$4.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}

SyntheticUIEvent$4.augmentClass(SyntheticKeyboardEvent$1, KeyboardEventInterface);

var SyntheticKeyboardEvent_1 = SyntheticKeyboardEvent$1;

var SyntheticMouseEvent$3 = SyntheticMouseEvent_1;

/**
 * @interface DragEvent
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var DragEventInterface = {
  dataTransfer: null
};

/**
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {string} dispatchMarker Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @extends {SyntheticUIEvent}
 */
function SyntheticDragEvent$1(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
  return SyntheticMouseEvent$3.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}

SyntheticMouseEvent$3.augmentClass(SyntheticDragEvent$1, DragEventInterface);

var SyntheticDragEvent_1 = SyntheticDragEvent$1;

var SyntheticUIEvent$5 = SyntheticUIEvent_1;

var getEventModifierState$3 = getEventModifierState_1;

/**
 * @interface TouchEvent
 * @see http://www.w3.org/TR/touch-events/
 */
var TouchEventInterface = {
  touches: null,
  targetTouches: null,
  changedTouches: null,
  altKey: null,
  metaKey: null,
  ctrlKey: null,
  shiftKey: null,
  getModifierState: getEventModifierState$3
};

/**
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {string} dispatchMarker Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @extends {SyntheticUIEvent}
 */
function SyntheticTouchEvent$1(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
  return SyntheticUIEvent$5.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}

SyntheticUIEvent$5.augmentClass(SyntheticTouchEvent$1, TouchEventInterface);

var SyntheticTouchEvent_1 = SyntheticTouchEvent$1;

var SyntheticEvent$9 = SyntheticEvent_1;

/**
 * @interface Event
 * @see http://www.w3.org/TR/2009/WD-css3-transitions-20090320/#transition-events-
 * @see https://developer.mozilla.org/en-US/docs/Web/API/TransitionEvent
 */
var TransitionEventInterface = {
  propertyName: null,
  elapsedTime: null,
  pseudoElement: null
};

/**
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {string} dispatchMarker Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @extends {SyntheticEvent}
 */
function SyntheticTransitionEvent$1(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
  return SyntheticEvent$9.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}

SyntheticEvent$9.augmentClass(SyntheticTransitionEvent$1, TransitionEventInterface);

var SyntheticTransitionEvent_1 = SyntheticTransitionEvent$1;

var SyntheticMouseEvent$4 = SyntheticMouseEvent_1;

/**
 * @interface WheelEvent
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var WheelEventInterface = {
  deltaX: function (event) {
    return 'deltaX' in event ? event.deltaX :
    // Fallback to `wheelDeltaX` for Webkit and normalize (right is positive).
    'wheelDeltaX' in event ? -event.wheelDeltaX : 0;
  },
  deltaY: function (event) {
    return 'deltaY' in event ? event.deltaY :
    // Fallback to `wheelDeltaY` for Webkit and normalize (down is positive).
    'wheelDeltaY' in event ? -event.wheelDeltaY :
    // Fallback to `wheelDelta` for IE<9 and normalize (down is positive).
    'wheelDelta' in event ? -event.wheelDelta : 0;
  },
  deltaZ: null,

  // Browsers without "deltaMode" is reporting in raw wheel delta where one
  // notch on the scroll is always +/- 120, roughly equivalent to pixels.
  // A good approximation of DOM_DELTA_LINE (1) is 5% of viewport size or
  // ~40 pixels, for DOM_DELTA_SCREEN (2) it is 87.5% of viewport size.
  deltaMode: null
};

/**
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {string} dispatchMarker Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @extends {SyntheticMouseEvent}
 */
function SyntheticWheelEvent$1(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
  return SyntheticMouseEvent$4.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}

SyntheticMouseEvent$4.augmentClass(SyntheticWheelEvent$1, WheelEventInterface);

var SyntheticWheelEvent_1 = SyntheticWheelEvent$1;

var EventPropagators$5 = EventPropagators_1;
var SyntheticAnimationEvent = SyntheticAnimationEvent_1;
var SyntheticClipboardEvent = SyntheticClipboardEvent_1;
var SyntheticEvent$6 = SyntheticEvent_1;
var SyntheticFocusEvent = SyntheticFocusEvent_1;
var SyntheticKeyboardEvent = SyntheticKeyboardEvent_1;
var SyntheticMouseEvent$2 = SyntheticMouseEvent_1;
var SyntheticDragEvent = SyntheticDragEvent_1;
var SyntheticTouchEvent = SyntheticTouchEvent_1;
var SyntheticTransitionEvent = SyntheticTransitionEvent_1;
var SyntheticUIEvent$2 = SyntheticUIEvent_1;
var SyntheticWheelEvent = SyntheticWheelEvent_1;

var getEventCharCode = getEventCharCode_1;
var invariant$8 = invariant;

/**
 * Turns
 * ['abort', ...]
 * into
 * eventTypes = {
 *   'abort': {
 *     phasedRegistrationNames: {
 *       bubbled: 'onAbort',
 *       captured: 'onAbortCapture',
 *     },
 *     dependencies: ['topAbort'],
 *   },
 *   ...
 * };
 * topLevelEventsToDispatchConfig = {
 *   'topAbort': { sameConfig }
 * };
 */
var eventTypes$4 = {};
var topLevelEventsToDispatchConfig = {};
['abort', 'animationEnd', 'animationIteration', 'animationStart', 'blur', 'cancel', 'canPlay', 'canPlayThrough', 'click', 'close', 'contextMenu', 'copy', 'cut', 'doubleClick', 'drag', 'dragEnd', 'dragEnter', 'dragExit', 'dragLeave', 'dragOver', 'dragStart', 'drop', 'durationChange', 'emptied', 'encrypted', 'ended', 'error', 'focus', 'input', 'invalid', 'keyDown', 'keyPress', 'keyUp', 'load', 'loadedData', 'loadedMetadata', 'loadStart', 'mouseDown', 'mouseMove', 'mouseOut', 'mouseOver', 'mouseUp', 'paste', 'pause', 'play', 'playing', 'progress', 'rateChange', 'reset', 'scroll', 'seeked', 'seeking', 'stalled', 'submit', 'suspend', 'timeUpdate', 'toggle', 'touchCancel', 'touchEnd', 'touchMove', 'touchStart', 'transitionEnd', 'volumeChange', 'waiting', 'wheel'].forEach(function (event) {
  var capitalizedEvent = event[0].toUpperCase() + event.slice(1);
  var onEvent = 'on' + capitalizedEvent;
  var topEvent = 'top' + capitalizedEvent;

  var type = {
    phasedRegistrationNames: {
      bubbled: onEvent,
      captured: onEvent + 'Capture'
    },
    dependencies: [topEvent]
  };
  eventTypes$4[event] = type;
  topLevelEventsToDispatchConfig[topEvent] = type;
});

var SimpleEventPlugin$1 = {

  eventTypes: eventTypes$4,

  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    var dispatchConfig = topLevelEventsToDispatchConfig[topLevelType];
    if (!dispatchConfig) {
      return null;
    }
    var EventConstructor;
    switch (topLevelType) {
      case 'topAbort':
      case 'topCancel':
      case 'topCanPlay':
      case 'topCanPlayThrough':
      case 'topClose':
      case 'topDurationChange':
      case 'topEmptied':
      case 'topEncrypted':
      case 'topEnded':
      case 'topError':
      case 'topInput':
      case 'topInvalid':
      case 'topLoad':
      case 'topLoadedData':
      case 'topLoadedMetadata':
      case 'topLoadStart':
      case 'topPause':
      case 'topPlay':
      case 'topPlaying':
      case 'topProgress':
      case 'topRateChange':
      case 'topReset':
      case 'topSeeked':
      case 'topSeeking':
      case 'topStalled':
      case 'topSubmit':
      case 'topSuspend':
      case 'topTimeUpdate':
      case 'topToggle':
      case 'topVolumeChange':
      case 'topWaiting':
        // HTML Events
        // @see http://www.w3.org/TR/html5/index.html#events-0
        EventConstructor = SyntheticEvent$6;
        break;
      case 'topKeyPress':
        // Firefox creates a keypress event for function keys too. This removes
        // the unwanted keypress events. Enter is however both printable and
        // non-printable. One would expect Tab to be as well (but it isn't).
        if (getEventCharCode(nativeEvent) === 0) {
          return null;
        }
      /* falls through */
      case 'topKeyDown':
      case 'topKeyUp':
        EventConstructor = SyntheticKeyboardEvent;
        break;
      case 'topBlur':
      case 'topFocus':
        EventConstructor = SyntheticFocusEvent;
        break;
      case 'topClick':
        // Firefox creates a click event on right mouse clicks. This removes the
        // unwanted click events.
        if (nativeEvent.button === 2) {
          return null;
        }
      /* falls through */
      case 'topDoubleClick':
      case 'topMouseDown':
      case 'topMouseMove':
      case 'topMouseUp':
      // TODO: Disabled elements should not respond to mouse events
      /* falls through */
      case 'topMouseOut':
      case 'topMouseOver':
      case 'topContextMenu':
        EventConstructor = SyntheticMouseEvent$2;
        break;
      case 'topDrag':
      case 'topDragEnd':
      case 'topDragEnter':
      case 'topDragExit':
      case 'topDragLeave':
      case 'topDragOver':
      case 'topDragStart':
      case 'topDrop':
        EventConstructor = SyntheticDragEvent;
        break;
      case 'topTouchCancel':
      case 'topTouchEnd':
      case 'topTouchMove':
      case 'topTouchStart':
        EventConstructor = SyntheticTouchEvent;
        break;
      case 'topAnimationEnd':
      case 'topAnimationIteration':
      case 'topAnimationStart':
        EventConstructor = SyntheticAnimationEvent;
        break;
      case 'topTransitionEnd':
        EventConstructor = SyntheticTransitionEvent;
        break;
      case 'topScroll':
        EventConstructor = SyntheticUIEvent$2;
        break;
      case 'topWheel':
        EventConstructor = SyntheticWheelEvent;
        break;
      case 'topCopy':
      case 'topCut':
      case 'topPaste':
        EventConstructor = SyntheticClipboardEvent;
        break;
    }
    invariant$8(EventConstructor, 'SimpleEventPlugin: Unhandled event type, `%s`.', topLevelType);
    var event = EventConstructor.getPooled(dispatchConfig, targetInst, nativeEvent, nativeEventTarget);
    EventPropagators$5.accumulateTwoPhaseDispatches(event);
    return event;
  }

};

var SimpleEventPlugin_1 = SimpleEventPlugin$1;

var ARIADOMPropertyConfig = ARIADOMPropertyConfig_1;
var BeforeInputEventPlugin = BeforeInputEventPlugin_1;
var DOMProperty$2 = DOMProperty_1;
var ChangeEventPlugin = ChangeEventPlugin_1;
var DOMEventPluginOrder = DOMEventPluginOrder_1;
var EnterLeaveEventPlugin = EnterLeaveEventPlugin_1;
var EventPluginHub = EventPluginHub_1;
var EventPluginUtils = EventPluginUtils_1;
var HTMLDOMPropertyConfig = HTMLDOMPropertyConfig_1;
var ReactBrowserEventEmitter = ReactBrowserEventEmitter_1;
var ReactDOMComponentTree$2 = ReactDOMComponentTree_1;
var ReactEventListener = ReactEventListener_1;
var SVGDOMPropertyConfig = SVGDOMPropertyConfig_1;
var SelectEventPlugin = SelectEventPlugin_1;
var SimpleEventPlugin = SimpleEventPlugin_1;

var alreadyInjected = false;

function inject() {
  if (alreadyInjected) {
    // TODO: This is currently true because these injections are shared between
    // the client and the server package. They should be built independently
    // and not share any injection state. Then this problem will be solved.
    return;
  }
  alreadyInjected = true;

  ReactBrowserEventEmitter.injection.injectReactEventListener(ReactEventListener);

  /**
   * Inject modules for resolving DOM hierarchy and plugin ordering.
   */
  EventPluginHub.injection.injectEventPluginOrder(DOMEventPluginOrder);
  EventPluginUtils.injection.injectComponentTree(ReactDOMComponentTree$2);

  /**
   * Some important event plugins included by default (without having to require
   * them).
   */
  EventPluginHub.injection.injectEventPluginsByName({
    SimpleEventPlugin: SimpleEventPlugin,
    EnterLeaveEventPlugin: EnterLeaveEventPlugin,
    ChangeEventPlugin: ChangeEventPlugin,
    SelectEventPlugin: SelectEventPlugin,
    BeforeInputEventPlugin: BeforeInputEventPlugin
  });

  DOMProperty$2.injection.injectDOMPropertyConfig(ARIADOMPropertyConfig);
  DOMProperty$2.injection.injectDOMPropertyConfig(HTMLDOMPropertyConfig);
  DOMProperty$2.injection.injectDOMPropertyConfig(SVGDOMPropertyConfig);
}

var ReactDOMInjection$1 = {
  inject: inject
};

var invariant$9 = invariant;

var injected = false;

var ReactComponentEnvironment$1 = {

  /**
   * Optionally injectable hook for swapping out mount images in the middle of
   * the tree.
   */
  replaceNodeWithMarkup: null,

  /**
   * Optionally injectable hook for processing a queue of child updates. Will
   * later move into MultiChildComponents.
   */
  processChildrenUpdates: null,

  injection: {
    injectEnvironment: function (environment) {
      invariant$9(!injected, 'ReactCompositeComponent: injectEnvironment() can only be called once.');
      ReactComponentEnvironment$1.replaceNodeWithMarkup = environment.replaceNodeWithMarkup;
      ReactComponentEnvironment$1.processChildrenUpdates = environment.processChildrenUpdates;
      injected = true;
    }
  }

};

var ReactComponentEnvironment_1 = ReactComponentEnvironment$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule DOMNamespaces
 */

var DOMNamespaces$1 = {
  html: 'http://www.w3.org/1999/xhtml',
  mathml: 'http://www.w3.org/1998/Math/MathML',
  svg: 'http://www.w3.org/2000/svg'
};

var DOMNamespaces_1 = DOMNamespaces$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule createMicrosoftUnsafeLocalFunction
 */

/* globals MSApp */

/**
 * Create a function which has 'unsafe' privileges (required by windows8 apps)
 */

var createMicrosoftUnsafeLocalFunction$3 = function (func) {
  if (typeof MSApp !== 'undefined' && MSApp.execUnsafeLocalFunction) {
    return function (arg0, arg1, arg2, arg3) {
      MSApp.execUnsafeLocalFunction(function () {
        return func(arg0, arg1, arg2, arg3);
      });
    };
  } else {
    return func;
  }
};

var createMicrosoftUnsafeLocalFunction_1 = createMicrosoftUnsafeLocalFunction$3;

var ExecutionEnvironment$9 = ExecutionEnvironment;
var DOMNamespaces$2 = DOMNamespaces_1;

var WHITESPACE_TEST = /^[ \r\n\t\f]/;
var NONVISIBLE_TEST = /<(!--|link|noscript|meta|script|style)[ \r\n\t\f\/>]/;

var createMicrosoftUnsafeLocalFunction$2 = createMicrosoftUnsafeLocalFunction_1;

// SVG temp container for IE lacking innerHTML
var reusableSVGContainer;

/**
 * Set the innerHTML property of a node, ensuring that whitespace is preserved
 * even in IE8.
 *
 * @param {DOMElement} node
 * @param {string} html
 * @internal
 */
var setInnerHTML$2 = createMicrosoftUnsafeLocalFunction$2(function (node, html) {
  // IE does not have innerHTML for SVG nodes, so instead we inject the
  // new markup in a temp node and then move the child nodes across into
  // the target node
  if (node.namespaceURI === DOMNamespaces$2.svg && !('innerHTML' in node)) {
    reusableSVGContainer = reusableSVGContainer || document.createElement('div');
    reusableSVGContainer.innerHTML = '<svg>' + html + '</svg>';
    var svgNode = reusableSVGContainer.firstChild;
    while (svgNode.firstChild) {
      node.appendChild(svgNode.firstChild);
    }
  } else {
    node.innerHTML = html;
  }
});

if (ExecutionEnvironment$9.canUseDOM) {
  // IE8: When updating a just created node with innerHTML only leading
  // whitespace is removed. When updating an existing node with innerHTML
  // whitespace in root TextNodes is also collapsed.
  // @see quirksmode.org/bugreports/archives/2004/11/innerhtml_and_t.html

  // Feature detection; only IE8 is known to behave improperly like this.
  var testElement = document.createElement('div');
  testElement.innerHTML = ' ';
  if (testElement.innerHTML === '') {
    setInnerHTML$2 = function (node, html) {
      // Magic theory: IE8 supposedly differentiates between added and updated
      // nodes when processing innerHTML, innerHTML on updated nodes suffers
      // from worse whitespace behavior. Re-adding a node like this triggers
      // the initial and more favorable whitespace behavior.
      // TODO: What to do on a detached node?
      if (node.parentNode) {
        node.parentNode.replaceChild(node, node);
      }

      // We also implement a workaround for non-visible tags disappearing into
      // thin air on IE8, this only happens if there is no visible text
      // in-front of the non-visible tags. Piggyback on the whitespace fix
      // and simply check if any non-visible tags appear in the source.
      if (WHITESPACE_TEST.test(html) || html[0] === '<' && NONVISIBLE_TEST.test(html)) {
        // Recover leading whitespace by temporarily prepending any character.
        // \uFEFF has the potential advantage of being zero-width/invisible.
        // UglifyJS drops U+FEFF chars when parsing, so use String.fromCharCode
        // in hopes that this is preserved even if "\uFEFF" is transformed to
        // the actual Unicode character (by Babel, for example).
        // https://github.com/mishoo/UglifyJS2/blob/v2.4.20/lib/parse.js#L216
        node.innerHTML = String.fromCharCode(0xFEFF) + html;

        // deleteData leaves an empty `TextNode` which offsets the index of all
        // children. Definitely want to avoid this.
        var textNode = node.firstChild;
        if (textNode.data.length === 1) {
          node.removeChild(textNode);
        } else {
          textNode.deleteData(0, 1);
        }
      } else {
        node.innerHTML = html;
      }
    };
  }
  testElement = null;
}

var setInnerHTML_1 = setInnerHTML$2;

/**
 * Copyright 2016-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * Based on the escape-html library, which is used under the MIT License below:
 *
 * Copyright (c) 2012-2013 TJ Holowaychuk
 * Copyright (c) 2015 Andreas Lubbe
 * Copyright (c) 2015 Tiancheng "Timothy" Gu
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * 'Software'), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * @providesModule escapeTextContentForBrowser
 */

// code copied and modified from escape-html
/**
 * Module variables.
 * @private
 */

var matchHtmlRegExp = /["'&<>]/;

/**
 * Escape special characters in the given string of html.
 *
 * @param  {string} string The string to escape for inserting into HTML
 * @return {string}
 * @public
 */

function escapeHtml(string) {
  var str = '' + string;
  var match = matchHtmlRegExp.exec(str);

  if (!match) {
    return str;
  }

  var escape;
  var html = '';
  var index = 0;
  var lastIndex = 0;

  for (index = match.index; index < str.length; index++) {
    switch (str.charCodeAt(index)) {
      case 34:
        // "
        escape = '&quot;';
        break;
      case 38:
        // &
        escape = '&amp;';
        break;
      case 39:
        // '
        escape = '&#x27;'; // modified from escape-html; used to be '&#39'
        break;
      case 60:
        // <
        escape = '&lt;';
        break;
      case 62:
        // >
        escape = '&gt;';
        break;
      default:
        continue;
    }

    if (lastIndex !== index) {
      html += str.substring(lastIndex, index);
    }

    lastIndex = index + 1;
    html += escape;
  }

  return lastIndex !== index ? html + str.substring(lastIndex, index) : html;
}
// end code copied and modified from escape-html


/**
 * Escapes text to prevent scripting attacks.
 *
 * @param {*} text Text value to escape.
 * @return {string} An escaped string.
 */
function escapeTextContentForBrowser$1(text) {
  if (typeof text === 'boolean' || typeof text === 'number') {
    // this shortcircuit helps perf for types that we know will never have
    // special characters, especially given that this function is used often
    // for numeric dom ids.
    return '' + text;
  }
  return escapeHtml(text);
}

var escapeTextContentForBrowser_1 = escapeTextContentForBrowser$1;

var ExecutionEnvironment$10 = ExecutionEnvironment;
var escapeTextContentForBrowser = escapeTextContentForBrowser_1;
var setInnerHTML$3 = setInnerHTML_1;

/**
 * Set the textContent property of a node, ensuring that whitespace is preserved
 * even in IE8. innerText is a poor substitute for textContent and, among many
 * issues, inserts <br> instead of the literal newline chars. innerHTML behaves
 * as it should.
 *
 * @param {DOMElement} node
 * @param {string} text
 * @internal
 */
var setTextContent$2 = function (node, text) {
  if (text) {
    var firstChild = node.firstChild;

    if (firstChild && firstChild === node.lastChild && firstChild.nodeType === 3) {
      firstChild.nodeValue = text;
      return;
    }
  }
  node.textContent = text;
};

if (ExecutionEnvironment$10.canUseDOM) {
  if (!('textContent' in document.documentElement)) {
    setTextContent$2 = function (node, text) {
      if (node.nodeType === 3) {
        node.nodeValue = text;
        return;
      }
      setInnerHTML$3(node, escapeTextContentForBrowser(text));
    };
  }
}

var setTextContent_1 = setTextContent$2;

var DOMNamespaces = DOMNamespaces_1;
var setInnerHTML$1 = setInnerHTML_1;

var createMicrosoftUnsafeLocalFunction$1 = createMicrosoftUnsafeLocalFunction_1;
var setTextContent$1 = setTextContent_1;

var ELEMENT_NODE_TYPE = 1;
var DOCUMENT_FRAGMENT_NODE_TYPE = 11;

/**
 * In IE (8-11) and Edge, appending nodes with no children is dramatically
 * faster than appending a full subtree, so we essentially queue up the
 * .appendChild calls here and apply them so each node is added to its parent
 * before any children are added.
 *
 * In other browsers, doing so is slower or neutral compared to the other order
 * (in Firefox, twice as slow) so we only do this inversion in IE.
 *
 * See https://github.com/spicyj/innerhtml-vs-createelement-vs-clonenode.
 */
var enableLazy = typeof document !== 'undefined' && typeof document.documentMode === 'number' || typeof navigator !== 'undefined' && typeof navigator.userAgent === 'string' && /\bEdge\/\d/.test(navigator.userAgent);

function insertTreeChildren(tree) {
  if (!enableLazy) {
    return;
  }
  var node = tree.node;
  var children = tree.children;
  if (children.length) {
    for (var i = 0; i < children.length; i++) {
      insertTreeBefore(node, children[i], null);
    }
  } else if (tree.html != null) {
    setInnerHTML$1(node, tree.html);
  } else if (tree.text != null) {
    setTextContent$1(node, tree.text);
  }
}

var insertTreeBefore = createMicrosoftUnsafeLocalFunction$1(function (parentNode, tree, referenceNode) {
  // DocumentFragments aren't actually part of the DOM after insertion so
  // appending children won't update the DOM. We need to ensure the fragment
  // is properly populated first, breaking out of our lazy approach for just
  // this level. Also, some <object> plugins (like Flash Player) will read
  // <param> nodes immediately upon insertion into the DOM, so <object>
  // must also be populated prior to insertion into the DOM.
  if (tree.node.nodeType === DOCUMENT_FRAGMENT_NODE_TYPE || tree.node.nodeType === ELEMENT_NODE_TYPE && tree.node.nodeName.toLowerCase() === 'object' && (tree.node.namespaceURI == null || tree.node.namespaceURI === DOMNamespaces.html)) {
    insertTreeChildren(tree);
    parentNode.insertBefore(tree.node, referenceNode);
  } else {
    parentNode.insertBefore(tree.node, referenceNode);
    insertTreeChildren(tree);
  }
});

function replaceChildWithTree(oldNode, newTree) {
  oldNode.parentNode.replaceChild(newTree.node, oldNode);
  insertTreeChildren(newTree);
}

function queueChild(parentTree, childTree) {
  if (enableLazy) {
    parentTree.children.push(childTree);
  } else {
    parentTree.node.appendChild(childTree.node);
  }
}

function queueHTML(tree, html) {
  if (enableLazy) {
    tree.html = html;
  } else {
    setInnerHTML$1(tree.node, html);
  }
}

function queueText(tree, text) {
  if (enableLazy) {
    tree.text = text;
  } else {
    setTextContent$1(tree.node, text);
  }
}

function toString() {
  return this.node.nodeName;
}

function DOMLazyTree$1(node) {
  return {
    node: node,
    children: [],
    html: null,
    text: null,
    toString: toString
  };
}

DOMLazyTree$1.insertTreeBefore = insertTreeBefore;
DOMLazyTree$1.replaceChildWithTree = replaceChildWithTree;
DOMLazyTree$1.queueChild = queueChild;
DOMLazyTree$1.queueHTML = queueHTML;
DOMLazyTree$1.queueText = queueText;

var DOMLazyTree_1 = DOMLazyTree$1;

var DOMLazyTree$2 = DOMLazyTree_1;
var ExecutionEnvironment$11 = ExecutionEnvironment;

var createNodesFromMarkup$1 = createNodesFromMarkup;
var emptyFunction$2 = emptyFunction;
var invariant$10 = invariant;

var Danger$1 = {

  /**
   * Replaces a node with a string of markup at its current position within its
   * parent. The markup must render into a single root node.
   *
   * @param {DOMElement} oldChild Child node to replace.
   * @param {string} markup Markup to render in place of the child node.
   * @internal
   */
  dangerouslyReplaceNodeWithMarkup: function (oldChild, markup) {
    invariant$10(ExecutionEnvironment$11.canUseDOM, 'dangerouslyReplaceNodeWithMarkup(...): Cannot render markup in a ' + 'worker thread. Make sure `window` and `document` are available ' + 'globally before requiring React when unit testing or use ' + 'ReactDOMServer.renderToString() for server rendering.');
    invariant$10(markup, 'dangerouslyReplaceNodeWithMarkup(...): Missing markup.');
    invariant$10(oldChild.nodeName !== 'HTML', 'dangerouslyReplaceNodeWithMarkup(...): Cannot replace markup of the ' + '<html> node. This is because browser quirks make this unreliable ' + 'and/or slow. If you want to render to the root you must use ' + 'server rendering. See ReactDOMServer.renderToString().');

    if (typeof markup === 'string') {
      var newChild = createNodesFromMarkup$1(markup, emptyFunction$2)[0];
      oldChild.parentNode.replaceChild(newChild, oldChild);
    } else {
      DOMLazyTree$2.replaceChildWithTree(oldChild, markup);
    }
  }

};

var Danger_1 = Danger$1;

var warning$5 = warning;

var ReactInvalidSetStateWarningHook$1 = {};

if (__DEV__) {
  var processingChildContext = false;

  var warnInvalidSetState = function () {
    warning$5(!processingChildContext, 'setState(...): Cannot call setState() inside getChildContext()');
  };

  ReactInvalidSetStateWarningHook$1 = {
    onBeginProcessingChildContext: function () {
      processingChildContext = true;
    },
    onEndProcessingChildContext: function () {
      processingChildContext = false;
    },
    onSetState: function () {
      warnInvalidSetState();
    }
  };
}

var ReactInvalidSetStateWarningHook_1 = ReactInvalidSetStateWarningHook$1;

/**
 * Copyright 2016-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactHostOperationHistoryHook
 *
 */

// Trust the developer to only use this with a __DEV__ check
var ReactHostOperationHistoryHook$1 = null;

if (__DEV__) {
  var history = [];

  ReactHostOperationHistoryHook$1 = {
    onHostOperation: function (operation) {
      history.push(operation);
    },
    clearHistory: function () {
      if (ReactHostOperationHistoryHook$1._preventClearing) {
        // Should only be used for tests.
        return;
      }

      history = [];
    },
    getHistory: function () {
      return history;
    }
  };
}

var ReactHostOperationHistoryHook_1 = ReactHostOperationHistoryHook$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactCurrentOwner
 *
 */

/**
 * Keeps track of the current owner.
 *
 * The current owner is the component who should own any components that are
 * currently being constructed.
 */
var ReactCurrentOwner$1 = {

  /**
   * @internal
   * @type {ReactComponent}
   */
  current: null

};

var ReactCurrentOwner_1 = ReactCurrentOwner$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 *
 * @providesModule getComponentName
 */

function getComponentName$1(instanceOrFiber) {
  if (typeof instanceOrFiber.getName === 'function') {
    // Stack reconciler
    var instance = instanceOrFiber;
    return instance.getName();
  }
  if (typeof instanceOrFiber.tag === 'number') {
    // Fiber reconciler
    var fiber = instanceOrFiber;
    var type = fiber.type;

    if (typeof type === 'string') {
      return type;
    }
    if (typeof type === 'function') {
      return type.displayName || type.name;
    }
  }
  return null;
}

var getComponentName_1 = getComponentName$1;

var ReactCurrentOwner = ReactCurrentOwner_1;
var ReactTypeOfWork$3 = ReactTypeOfWork;
var IndeterminateComponent = ReactTypeOfWork$3.IndeterminateComponent;
var FunctionalComponent = ReactTypeOfWork$3.FunctionalComponent;
var ClassComponent = ReactTypeOfWork$3.ClassComponent;
var HostComponent$2 = ReactTypeOfWork$3.HostComponent;


var getComponentName = getComponentName_1;
var invariant$11 = invariant;
var warning$6 = warning;

function isNative(fn) {
  // Based on isNative() from Lodash
  var funcToString = Function.prototype.toString;
  var hasOwnProperty = Object.prototype.hasOwnProperty;
  var reIsNative = RegExp('^' + funcToString
  // Take an example native function source for comparison
  .call(hasOwnProperty)
  // Strip regex characters so we can use it for regex
  .replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
  // Remove hasOwnProperty from the template to make it generic
  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$');
  try {
    var source = funcToString.call(fn);
    return reIsNative.test(source);
  } catch (err) {
    return false;
  }
}

var canUseCollections =
// Array.from
typeof Array.from === 'function' &&
// Map
typeof Map === 'function' && isNative(Map) &&
// Map.prototype.keys
Map.prototype != null && typeof Map.prototype.keys === 'function' && isNative(Map.prototype.keys) &&
// Set
typeof Set === 'function' && isNative(Set) &&
// Set.prototype.keys
Set.prototype != null && typeof Set.prototype.keys === 'function' && isNative(Set.prototype.keys);

var setItem;
var getItem;
var removeItem;
var getItemIDs;
var addRoot;
var removeRoot;
var getRootIDs;

if (canUseCollections) {
  var itemMap = new Map();
  var rootIDSet = new Set();

  setItem = function (id, item) {
    itemMap.set(id, item);
  };
  getItem = function (id) {
    return itemMap.get(id);
  };
  removeItem = function (id) {
    itemMap['delete'](id);
  };
  getItemIDs = function () {
    return Array.from(itemMap.keys());
  };

  addRoot = function (id) {
    rootIDSet.add(id);
  };
  removeRoot = function (id) {
    rootIDSet['delete'](id);
  };
  getRootIDs = function () {
    return Array.from(rootIDSet.keys());
  };
} else {
  var itemByKey = {};
  var rootByKey = {};

  // Use non-numeric keys to prevent V8 performance issues:
  // https://github.com/facebook/react/pull/7232
  var getKeyFromID = function (id) {
    return '.' + id;
  };
  var getIDFromKey = function (key) {
    return parseInt(key.substr(1), 10);
  };

  setItem = function (id, item) {
    var key = getKeyFromID(id);
    itemByKey[key] = item;
  };
  getItem = function (id) {
    var key = getKeyFromID(id);
    return itemByKey[key];
  };
  removeItem = function (id) {
    var key = getKeyFromID(id);
    delete itemByKey[key];
  };
  getItemIDs = function () {
    return Object.keys(itemByKey).map(getIDFromKey);
  };

  addRoot = function (id) {
    var key = getKeyFromID(id);
    rootByKey[key] = true;
  };
  removeRoot = function (id) {
    var key = getKeyFromID(id);
    delete rootByKey[key];
  };
  getRootIDs = function () {
    return Object.keys(rootByKey).map(getIDFromKey);
  };
}

var unmountedIDs = [];

function purgeDeep(id) {
  var item = getItem(id);
  if (item) {
    var childIDs = item.childIDs;

    removeItem(id);
    childIDs.forEach(purgeDeep);
  }
}

function describeComponentFrame(name, source, ownerName) {
  return '\n    in ' + (name || 'Unknown') + (source ? ' (at ' + source.fileName.replace(/^.*[\\\/]/, '') + ':' + source.lineNumber + ')' : ownerName ? ' (created by ' + ownerName + ')' : '');
}

function getDisplayName(element) {
  if (element == null) {
    return '#empty';
  } else if (typeof element === 'string' || typeof element === 'number') {
    return '#text';
  } else if (typeof element.type === 'string') {
    return element.type;
  } else {
    return element.type.displayName || element.type.name || 'Unknown';
  }
}

function describeID(id) {
  var name = ReactComponentTreeHook$1.getDisplayName(id);
  var element = ReactComponentTreeHook$1.getElement(id);
  var ownerID = ReactComponentTreeHook$1.getOwnerID(id);
  var ownerName;
  if (ownerID) {
    ownerName = ReactComponentTreeHook$1.getDisplayName(ownerID);
  }
  warning$6(element, 'ReactComponentTreeHook: Missing React element for debugID %s when ' + 'building stack', id);
  return describeComponentFrame(name, element && element._source, ownerName);
}

function describeFiber(fiber) {
  switch (fiber.tag) {
    case IndeterminateComponent:
    case FunctionalComponent:
    case ClassComponent:
    case HostComponent$2:
      var owner = fiber._debugOwner;
      var source = fiber._debugSource;
      var name = getComponentName(fiber);
      var ownerName = null;
      if (owner) {
        ownerName = getComponentName(owner);
      }
      return describeComponentFrame(name, source, ownerName);
    default:
      return '';
  }
}

var ReactComponentTreeHook$1 = {
  onSetChildren: function (id, nextChildIDs) {
    var item = getItem(id);
    invariant$11(item, 'Item must have been set');
    item.childIDs = nextChildIDs;

    for (var i = 0; i < nextChildIDs.length; i++) {
      var nextChildID = nextChildIDs[i];
      var nextChild = getItem(nextChildID);
      invariant$11(nextChild, 'Expected hook events to fire for the child ' + 'before its parent includes it in onSetChildren().');
      invariant$11(nextChild.childIDs != null || typeof nextChild.element !== 'object' || nextChild.element == null, 'Expected onSetChildren() to fire for a container child ' + 'before its parent includes it in onSetChildren().');
      invariant$11(nextChild.isMounted, 'Expected onMountComponent() to fire for the child ' + 'before its parent includes it in onSetChildren().');
      if (nextChild.parentID == null) {
        nextChild.parentID = id;
        // TODO: This shouldn't be necessary but mounting a new root during in
        // componentWillMount currently causes not-yet-mounted components to
        // be purged from our tree data so their parent id is missing.
      }
      invariant$11(nextChild.parentID === id, 'Expected onBeforeMountComponent() parent and onSetChildren() to ' + 'be consistent (%s has parents %s and %s).', nextChildID, nextChild.parentID, id);
    }
  },
  onBeforeMountComponent: function (id, element, parentID) {
    var item = {
      element: element,
      parentID: parentID,
      text: null,
      childIDs: [],
      isMounted: false,
      updateCount: 0
    };
    setItem(id, item);
  },
  onBeforeUpdateComponent: function (id, element) {
    var item = getItem(id);
    if (!item || !item.isMounted) {
      // We may end up here as a result of setState() in componentWillUnmount().
      // In this case, ignore the element.
      return;
    }
    item.element = element;
  },
  onMountComponent: function (id) {
    var item = getItem(id);
    invariant$11(item, 'Item must have been set');
    item.isMounted = true;
    var isRoot = item.parentID === 0;
    if (isRoot) {
      addRoot(id);
    }
  },
  onUpdateComponent: function (id) {
    var item = getItem(id);
    if (!item || !item.isMounted) {
      // We may end up here as a result of setState() in componentWillUnmount().
      // In this case, ignore the element.
      return;
    }
    item.updateCount++;
  },
  onUnmountComponent: function (id) {
    var item = getItem(id);
    if (item) {
      // We need to check if it exists.
      // `item` might not exist if it is inside an error boundary, and a sibling
      // error boundary child threw while mounting. Then this instance never
      // got a chance to mount, but it still gets an unmounting event during
      // the error boundary cleanup.
      item.isMounted = false;
      var isRoot = item.parentID === 0;
      if (isRoot) {
        removeRoot(id);
      }
    }
    unmountedIDs.push(id);
  },
  purgeUnmountedComponents: function () {
    if (ReactComponentTreeHook$1._preventPurging) {
      // Should only be used for testing.
      return;
    }

    for (var i = 0; i < unmountedIDs.length; i++) {
      var id = unmountedIDs[i];
      purgeDeep(id);
    }
    unmountedIDs.length = 0;
  },
  isMounted: function (id) {
    var item = getItem(id);
    return item ? item.isMounted : false;
  },
  getCurrentStackAddendum: function (topElement) {
    var info = '';
    if (topElement) {
      var name = getDisplayName(topElement);
      var owner = topElement._owner;
      info += describeComponentFrame(name, topElement._source, owner && getComponentName(owner));
    }

    var currentOwner = ReactCurrentOwner.current;
    if (currentOwner) {
      if (typeof currentOwner.tag === 'number') {
        var workInProgress = currentOwner;
        // Safe because if current owner exists, we are reconciling,
        // and it is guaranteed to be the work-in-progress version.
        info += ReactComponentTreeHook$1.getStackAddendumByWorkInProgressFiber(workInProgress);
      } else if (typeof currentOwner._debugID === 'number') {
        info += ReactComponentTreeHook$1.getStackAddendumByID(currentOwner._debugID);
      }
    }
    return info;
  },
  getStackAddendumByID: function (id) {
    var info = '';
    while (id) {
      info += describeID(id);
      id = ReactComponentTreeHook$1.getParentID(id);
    }
    return info;
  },


  // This function can only be called with a work-in-progress fiber and
  // only during begin or complete phase. Do not call it under any other
  // circumstances.
  getStackAddendumByWorkInProgressFiber: function (workInProgress) {
    var info = '';
    var node = workInProgress;
    do {
      info += describeFiber(node);
      // Otherwise this return pointer might point to the wrong tree:
      node = node['return'];
    } while (node);
    return info;
  },
  getChildIDs: function (id) {
    var item = getItem(id);
    return item ? item.childIDs : [];
  },
  getDisplayName: function (id) {
    var element = ReactComponentTreeHook$1.getElement(id);
    if (!element) {
      return null;
    }
    return getDisplayName(element);
  },
  getElement: function (id) {
    var item = getItem(id);
    return item ? item.element : null;
  },
  getOwnerID: function (id) {
    var element = ReactComponentTreeHook$1.getElement(id);
    if (!element || !element._owner) {
      return null;
    }
    return element._owner._debugID;
  },
  getParentID: function (id) {
    var item = getItem(id);
    return item ? item.parentID : null;
  },
  getSource: function (id) {
    var item = getItem(id);
    var element = item ? item.element : null;
    var source = element != null ? element._source : null;
    return source;
  },
  getText: function (id) {
    var element = ReactComponentTreeHook$1.getElement(id);
    if (typeof element === 'string') {
      return element;
    } else if (typeof element === 'number') {
      return '' + element;
    } else {
      return null;
    }
  },
  getUpdateCount: function (id) {
    var item = getItem(id);
    return item ? item.updateCount : 0;
  },


  getRootIDs: getRootIDs,
  getRegisteredIDs: getItemIDs
};

var ReactComponentTreeHook_1 = ReactComponentTreeHook$1;

var ReactInvalidSetStateWarningHook = ReactInvalidSetStateWarningHook_1;
var ReactHostOperationHistoryHook = ReactHostOperationHistoryHook_1;
var ReactComponentTreeHook = ReactComponentTreeHook_1;
var ExecutionEnvironment$12 = ExecutionEnvironment;

var performanceNow$1 = performanceNow;
var warning$4 = warning;

// Trust the developer to only use this with a __DEV__ check
var ReactDebugTool$1 = null;

if (__DEV__) {
  var hooks = [];
  var didHookThrowForEvent = {};

  var callHook = function (event, fn, context, arg1, arg2, arg3, arg4, arg5) {
    try {
      fn.call(context, arg1, arg2, arg3, arg4, arg5);
    } catch (e) {
      warning$4(didHookThrowForEvent[event], 'Exception thrown by hook while handling %s: %s', event, e + '\n' + e.stack);
      didHookThrowForEvent[event] = true;
    }
  };

  var emitEvent = function (event, arg1, arg2, arg3, arg4, arg5) {
    for (var i = 0; i < hooks.length; i++) {
      var hook = hooks[i];
      var fn = hook[event];
      if (fn) {
        callHook(event, fn, hook, arg1, arg2, arg3, arg4, arg5);
      }
    }
  };

  var isProfiling = false;
  var flushHistory = [];
  var lifeCycleTimerStack = [];
  var currentFlushNesting = 0;
  var currentFlushMeasurements = [];
  var currentFlushStartTime = 0;
  var currentTimerDebugID = null;
  var currentTimerStartTime = 0;
  var currentTimerNestedFlushDuration = 0;
  var currentTimerType = null;

  var lifeCycleTimerHasWarned = false;

  var clearHistory = function () {
    ReactComponentTreeHook.purgeUnmountedComponents();
    ReactHostOperationHistoryHook.clearHistory();
  };

  var getTreeSnapshot = function (registeredIDs) {
    return registeredIDs.reduce(function (tree, id) {
      var ownerID = ReactComponentTreeHook.getOwnerID(id);
      var parentID = ReactComponentTreeHook.getParentID(id);
      tree[id] = {
        displayName: ReactComponentTreeHook.getDisplayName(id),
        text: ReactComponentTreeHook.getText(id),
        updateCount: ReactComponentTreeHook.getUpdateCount(id),
        childIDs: ReactComponentTreeHook.getChildIDs(id),
        // Text nodes don't have owners but this is close enough.
        ownerID: ownerID || parentID && ReactComponentTreeHook.getOwnerID(parentID) || 0,
        parentID: parentID
      };
      return tree;
    }, {});
  };

  var resetMeasurements = function () {
    var previousStartTime = currentFlushStartTime;
    var previousMeasurements = currentFlushMeasurements;
    var previousOperations = ReactHostOperationHistoryHook.getHistory();

    if (currentFlushNesting === 0) {
      currentFlushStartTime = 0;
      currentFlushMeasurements = [];
      clearHistory();
      return;
    }

    if (previousMeasurements.length || previousOperations.length) {
      var registeredIDs = ReactComponentTreeHook.getRegisteredIDs();
      flushHistory.push({
        duration: performanceNow$1() - previousStartTime,
        measurements: previousMeasurements || [],
        operations: previousOperations || [],
        treeSnapshot: getTreeSnapshot(registeredIDs)
      });
    }

    clearHistory();
    currentFlushStartTime = performanceNow$1();
    currentFlushMeasurements = [];
  };

  var checkDebugID = function (debugID) {
    var allowRoot = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

    if (allowRoot && debugID === 0) {
      return;
    }
    if (!debugID) {
      warning$4(false, 'ReactDebugTool: debugID may not be empty.');
    }
  };

  var beginLifeCycleTimer = function (debugID, timerType) {
    if (currentFlushNesting === 0) {
      return;
    }
    if (currentTimerType && !lifeCycleTimerHasWarned) {
      warning$4(false, 'There is an internal error in the React performance measurement code.' + '\n\nDid not expect %s timer to start while %s timer is still in ' + 'progress for %s instance.', timerType, currentTimerType || 'no', debugID === currentTimerDebugID ? 'the same' : 'another');
      lifeCycleTimerHasWarned = true;
    }
    currentTimerStartTime = performanceNow$1();
    currentTimerNestedFlushDuration = 0;
    currentTimerDebugID = debugID;
    currentTimerType = timerType;
  };

  var endLifeCycleTimer = function (debugID, timerType) {
    if (currentFlushNesting === 0) {
      return;
    }
    if (currentTimerType !== timerType && !lifeCycleTimerHasWarned) {
      warning$4(false, 'There is an internal error in the React performance measurement code. ' + 'We did not expect %s timer to stop while %s timer is still in ' + 'progress for %s instance. Please report this as a bug in React.', timerType, currentTimerType || 'no', debugID === currentTimerDebugID ? 'the same' : 'another');
      lifeCycleTimerHasWarned = true;
    }
    if (isProfiling) {
      currentFlushMeasurements.push({
        timerType: timerType,
        instanceID: debugID,
        duration: performanceNow$1() - currentTimerStartTime - currentTimerNestedFlushDuration
      });
    }
    currentTimerStartTime = 0;
    currentTimerNestedFlushDuration = 0;
    currentTimerDebugID = null;
    currentTimerType = null;
  };

  var pauseCurrentLifeCycleTimer = function () {
    var currentTimer = {
      startTime: currentTimerStartTime,
      nestedFlushStartTime: performanceNow$1(),
      debugID: currentTimerDebugID,
      timerType: currentTimerType
    };
    lifeCycleTimerStack.push(currentTimer);
    currentTimerStartTime = 0;
    currentTimerNestedFlushDuration = 0;
    currentTimerDebugID = null;
    currentTimerType = null;
  };

  var resumeCurrentLifeCycleTimer = function () {
    var _lifeCycleTimerStack$ = lifeCycleTimerStack.pop(),
        startTime = _lifeCycleTimerStack$.startTime,
        nestedFlushStartTime = _lifeCycleTimerStack$.nestedFlushStartTime,
        debugID = _lifeCycleTimerStack$.debugID,
        timerType = _lifeCycleTimerStack$.timerType;

    var nestedFlushDuration = performanceNow$1() - nestedFlushStartTime;
    currentTimerStartTime = startTime;
    currentTimerNestedFlushDuration += nestedFlushDuration;
    currentTimerDebugID = debugID;
    currentTimerType = timerType;
  };

  var lastMarkTimeStamp = 0;
  var canUsePerformanceMeasure = typeof performance !== 'undefined' && typeof performance.mark === 'function' && typeof performance.clearMarks === 'function' && typeof performance.measure === 'function' && typeof performance.clearMeasures === 'function';

  var shouldMark = function (debugID) {
    if (!isProfiling || !canUsePerformanceMeasure) {
      return false;
    }
    var element = ReactComponentTreeHook.getElement(debugID);
    if (element == null || typeof element !== 'object') {
      return false;
    }
    var isHostElement = typeof element.type === 'string';
    if (isHostElement) {
      return false;
    }
    return true;
  };

  var markBegin = function (debugID, markType) {
    if (!shouldMark(debugID)) {
      return;
    }

    var markName = debugID + '::' + markType;
    lastMarkTimeStamp = performanceNow$1();
    performance.mark(markName);
  };

  var markEnd = function (debugID, markType) {
    if (!shouldMark(debugID)) {
      return;
    }

    var markName = debugID + '::' + markType;
    var displayName = ReactComponentTreeHook.getDisplayName(debugID) || 'Unknown';

    // Chrome has an issue of dropping markers recorded too fast:
    // https://bugs.chromium.org/p/chromium/issues/detail?id=640652
    // To work around this, we will not report very small measurements.
    // I determined the magic number by tweaking it back and forth.
    // 0.05ms was enough to prevent the issue, but I set it to 0.1ms to be safe.
    // When the bug is fixed, we can `measure()` unconditionally if we want to.
    var timeStamp = performanceNow$1();
    if (timeStamp - lastMarkTimeStamp > 0.1) {
      var measurementName = displayName + ' [' + markType + ']';
      performance.measure(measurementName, markName);
    }

    performance.clearMarks(markName);
    performance.clearMeasures(measurementName);
  };

  ReactDebugTool$1 = {
    addHook: function (hook) {
      hooks.push(hook);
    },
    removeHook: function (hook) {
      for (var i = 0; i < hooks.length; i++) {
        if (hooks[i] === hook) {
          hooks.splice(i, 1);
          i--;
        }
      }
    },
    isProfiling: function () {
      return isProfiling;
    },
    beginProfiling: function () {
      if (isProfiling) {
        return;
      }

      isProfiling = true;
      flushHistory.length = 0;
      resetMeasurements();
      ReactDebugTool$1.addHook(ReactHostOperationHistoryHook);
    },
    endProfiling: function () {
      if (!isProfiling) {
        return;
      }

      isProfiling = false;
      resetMeasurements();
      ReactDebugTool$1.removeHook(ReactHostOperationHistoryHook);
    },
    getFlushHistory: function () {
      return flushHistory;
    },
    onBeginFlush: function () {
      currentFlushNesting++;
      resetMeasurements();
      pauseCurrentLifeCycleTimer();
      emitEvent('onBeginFlush');
    },
    onEndFlush: function () {
      resetMeasurements();
      currentFlushNesting--;
      resumeCurrentLifeCycleTimer();
      emitEvent('onEndFlush');
    },
    onBeginLifeCycleTimer: function (debugID, timerType) {
      checkDebugID(debugID);
      emitEvent('onBeginLifeCycleTimer', debugID, timerType);
      markBegin(debugID, timerType);
      beginLifeCycleTimer(debugID, timerType);
    },
    onEndLifeCycleTimer: function (debugID, timerType) {
      checkDebugID(debugID);
      endLifeCycleTimer(debugID, timerType);
      markEnd(debugID, timerType);
      emitEvent('onEndLifeCycleTimer', debugID, timerType);
    },
    onBeginProcessingChildContext: function () {
      emitEvent('onBeginProcessingChildContext');
    },
    onEndProcessingChildContext: function () {
      emitEvent('onEndProcessingChildContext');
    },
    onHostOperation: function (operation) {
      checkDebugID(operation.instanceID);
      emitEvent('onHostOperation', operation);
    },
    onSetState: function () {
      emitEvent('onSetState');
    },
    onSetChildren: function (debugID, childDebugIDs) {
      checkDebugID(debugID);
      childDebugIDs.forEach(checkDebugID);
      emitEvent('onSetChildren', debugID, childDebugIDs);
    },
    onBeforeMountComponent: function (debugID, element, parentDebugID) {
      checkDebugID(debugID);
      checkDebugID(parentDebugID, true);
      emitEvent('onBeforeMountComponent', debugID, element, parentDebugID);
      markBegin(debugID, 'mount');
    },
    onMountComponent: function (debugID) {
      checkDebugID(debugID);
      markEnd(debugID, 'mount');
      emitEvent('onMountComponent', debugID);
    },
    onBeforeUpdateComponent: function (debugID, element) {
      checkDebugID(debugID);
      emitEvent('onBeforeUpdateComponent', debugID, element);
      markBegin(debugID, 'update');
    },
    onUpdateComponent: function (debugID) {
      checkDebugID(debugID);
      markEnd(debugID, 'update');
      emitEvent('onUpdateComponent', debugID);
    },
    onBeforeUnmountComponent: function (debugID) {
      checkDebugID(debugID);
      emitEvent('onBeforeUnmountComponent', debugID);
      markBegin(debugID, 'unmount');
    },
    onUnmountComponent: function (debugID) {
      checkDebugID(debugID);
      markEnd(debugID, 'unmount');
      emitEvent('onUnmountComponent', debugID);
    },
    onTestEvent: function () {
      emitEvent('onTestEvent');
    }
  };

  ReactDebugTool$1.addHook(ReactInvalidSetStateWarningHook);
  ReactDebugTool$1.addHook(ReactComponentTreeHook);
  var url = ExecutionEnvironment$12.canUseDOM && window.location.href || '';
  if (/[?&]react_perf\b/.test(url)) {
    ReactDebugTool$1.beginProfiling();
  }
}

var ReactDebugTool_1 = ReactDebugTool$1;

// Trust the developer to only use ReactInstrumentation with a __DEV__ check

var debugTool = null;

if (__DEV__) {
  var ReactDebugTool = ReactDebugTool_1;
  debugTool = ReactDebugTool;
}

var ReactInstrumentation$2 = { debugTool: debugTool };

var DOMLazyTree = DOMLazyTree_1;
var Danger = Danger_1;
var ReactDOMComponentTree$9 = ReactDOMComponentTree_1;
var ReactInstrumentation$1 = ReactInstrumentation$2;

var createMicrosoftUnsafeLocalFunction = createMicrosoftUnsafeLocalFunction_1;
var setInnerHTML = setInnerHTML_1;
var setTextContent = setTextContent_1;

function getNodeAfter(parentNode, node) {
  // Special case for text components, which return [open, close] comments
  // from getHostNode.
  if (Array.isArray(node)) {
    node = node[1];
  }
  return node ? node.nextSibling : parentNode.firstChild;
}

/**
 * Inserts `childNode` as a child of `parentNode` at the `index`.
 *
 * @param {DOMElement} parentNode Parent node in which to insert.
 * @param {DOMElement} childNode Child node to insert.
 * @param {number} index Index at which to insert the child.
 * @internal
 */
var insertChildAt = createMicrosoftUnsafeLocalFunction(function (parentNode, childNode, referenceNode) {
  // We rely exclusively on `insertBefore(node, null)` instead of also using
  // `appendChild(node)`. (Using `undefined` is not allowed by all browsers so
  // we are careful to use `null`.)
  parentNode.insertBefore(childNode, referenceNode);
});

function insertLazyTreeChildAt(parentNode, childTree, referenceNode) {
  DOMLazyTree.insertTreeBefore(parentNode, childTree, referenceNode);
}

function moveChild(parentNode, childNode, referenceNode) {
  if (Array.isArray(childNode)) {
    moveDelimitedText(parentNode, childNode[0], childNode[1], referenceNode);
  } else {
    insertChildAt(parentNode, childNode, referenceNode);
  }
}

function removeChild(parentNode, childNode) {
  if (Array.isArray(childNode)) {
    var closingComment = childNode[1];
    childNode = childNode[0];
    removeDelimitedText(parentNode, childNode, closingComment);
    parentNode.removeChild(closingComment);
  }
  parentNode.removeChild(childNode);
}

function moveDelimitedText(parentNode, openingComment, closingComment, referenceNode) {
  var node = openingComment;
  while (true) {
    var nextNode = node.nextSibling;
    insertChildAt(parentNode, node, referenceNode);
    if (node === closingComment) {
      break;
    }
    node = nextNode;
  }
}

function removeDelimitedText(parentNode, startNode, closingComment) {
  while (true) {
    var node = startNode.nextSibling;
    if (node === closingComment) {
      // The closing comment is removed by ReactMultiChild.
      break;
    } else {
      parentNode.removeChild(node);
    }
  }
}

function replaceDelimitedText(openingComment, closingComment, stringText) {
  var parentNode = openingComment.parentNode;
  var nodeAfterComment = openingComment.nextSibling;
  if (nodeAfterComment === closingComment) {
    // There are no text nodes between the opening and closing comments; insert
    // a new one if stringText isn't empty.
    if (stringText) {
      insertChildAt(parentNode, document.createTextNode(stringText), nodeAfterComment);
    }
  } else {
    if (stringText) {
      // Set the text content of the first node after the opening comment, and
      // remove all following nodes up until the closing comment.
      setTextContent(nodeAfterComment, stringText);
      removeDelimitedText(parentNode, nodeAfterComment, closingComment);
    } else {
      removeDelimitedText(parentNode, openingComment, closingComment);
    }
  }

  if (__DEV__) {
    ReactInstrumentation$1.debugTool.onHostOperation({
      instanceID: ReactDOMComponentTree$9.getInstanceFromNode(openingComment)._debugID,
      type: 'replace text',
      payload: stringText
    });
  }
}

var dangerouslyReplaceNodeWithMarkup = Danger.dangerouslyReplaceNodeWithMarkup;
if (__DEV__) {
  dangerouslyReplaceNodeWithMarkup = function (oldChild, markup, prevInstance) {
    Danger.dangerouslyReplaceNodeWithMarkup(oldChild, markup);
    if (prevInstance._debugID !== 0) {
      ReactInstrumentation$1.debugTool.onHostOperation({
        instanceID: prevInstance._debugID,
        type: 'replace with',
        payload: markup.toString()
      });
    } else {
      var nextInstance = ReactDOMComponentTree$9.getInstanceFromNode(markup.node);
      if (nextInstance._debugID !== 0) {
        ReactInstrumentation$1.debugTool.onHostOperation({
          instanceID: nextInstance._debugID,
          type: 'mount',
          payload: markup.toString()
        });
      }
    }
  };
}

/**
 * Operations for updating with DOM children.
 */
var DOMChildrenOperations$1 = {

  dangerouslyReplaceNodeWithMarkup: dangerouslyReplaceNodeWithMarkup,

  replaceDelimitedText: replaceDelimitedText,

  /**
   * Updates a component's children by processing a series of updates. The
   * update configurations are each expected to have a `parentNode` property.
   *
   * @param {array<object>} updates List of update configurations.
   * @internal
   */
  processUpdates: function (parentNode, updates) {
    if (__DEV__) {
      var parentNodeDebugID = ReactDOMComponentTree$9.getInstanceFromNode(parentNode)._debugID;
    }

    for (var k = 0; k < updates.length; k++) {
      var update = updates[k];
      switch (update.type) {
        case 'INSERT_MARKUP':
          insertLazyTreeChildAt(parentNode, update.content, getNodeAfter(parentNode, update.afterNode));
          if (__DEV__) {
            ReactInstrumentation$1.debugTool.onHostOperation({
              instanceID: parentNodeDebugID,
              type: 'insert child',
              payload: { toIndex: update.toIndex, content: update.content.toString() }
            });
          }
          break;
        case 'MOVE_EXISTING':
          moveChild(parentNode, update.fromNode, getNodeAfter(parentNode, update.afterNode));
          if (__DEV__) {
            ReactInstrumentation$1.debugTool.onHostOperation({
              instanceID: parentNodeDebugID,
              type: 'move child',
              payload: { fromIndex: update.fromIndex, toIndex: update.toIndex }
            });
          }
          break;
        case 'SET_MARKUP':
          setInnerHTML(parentNode, update.content);
          if (__DEV__) {
            ReactInstrumentation$1.debugTool.onHostOperation({
              instanceID: parentNodeDebugID,
              type: 'replace children',
              payload: update.content.toString()
            });
          }
          break;
        case 'TEXT_CONTENT':
          setTextContent(parentNode, update.content);
          if (__DEV__) {
            ReactInstrumentation$1.debugTool.onHostOperation({
              instanceID: parentNodeDebugID,
              type: 'replace text',
              payload: update.content.toString()
            });
          }
          break;
        case 'REMOVE_NODE':
          removeChild(parentNode, update.fromNode);
          if (__DEV__) {
            ReactInstrumentation$1.debugTool.onHostOperation({
              instanceID: parentNodeDebugID,
              type: 'remove child',
              payload: { fromIndex: update.fromIndex }
            });
          }
          break;
      }
    }
  }

};

var DOMChildrenOperations_1 = DOMChildrenOperations$1;

var DOMChildrenOperations$2 = DOMChildrenOperations_1;
var ReactDOMComponentTree$10 = ReactDOMComponentTree_1;

/**
 * Operations used to process updates to DOM nodes.
 */
var ReactDOMIDOperations$1 = {

  /**
   * Updates a component's children by processing a series of updates.
   *
   * @param {array<object>} updates List of update configurations.
   * @internal
   */
  dangerouslyProcessChildrenUpdates: function (parentInst, updates) {
    var node = ReactDOMComponentTree$10.getNodeFromInstance(parentInst);
    DOMChildrenOperations$2.processUpdates(node, updates);
  }
};

var ReactDOMIDOperations_1 = ReactDOMIDOperations$1;

var DOMChildrenOperations = DOMChildrenOperations_1;
var ReactDOMIDOperations = ReactDOMIDOperations_1;

/**
 * Abstracts away all functionality of the reconciler that requires knowledge of
 * the browser context. TODO: These callers should be refactored to avoid the
 * need for this injection.
 */
var ReactComponentBrowserEnvironment$1 = {

  processChildrenUpdates: ReactDOMIDOperations.dangerouslyProcessChildrenUpdates,

  replaceNodeWithMarkup: DOMChildrenOperations.dangerouslyReplaceNodeWithMarkup

};

var ReactComponentBrowserEnvironment_1 = ReactComponentBrowserEnvironment$1;

var ReactDOMComponentTree$12 = ReactDOMComponentTree_1;

var focusNode$2 = focusNode;

var AutoFocusUtils$1 = {
  focusDOMComponent: function () {
    focusNode$2(ReactDOMComponentTree$12.getNodeFromInstance(this));
  }
};

var AutoFocusUtils_1 = AutoFocusUtils$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule CSSProperty
 */

/**
 * CSS properties which accept numbers but are not in units of "px".
 */

var isUnitlessNumber = {
  animationIterationCount: true,
  borderImageOutset: true,
  borderImageSlice: true,
  borderImageWidth: true,
  boxFlex: true,
  boxFlexGroup: true,
  boxOrdinalGroup: true,
  columnCount: true,
  flex: true,
  flexGrow: true,
  flexPositive: true,
  flexShrink: true,
  flexNegative: true,
  flexOrder: true,
  gridRow: true,
  gridColumn: true,
  fontWeight: true,
  lineClamp: true,
  lineHeight: true,
  opacity: true,
  order: true,
  orphans: true,
  tabSize: true,
  widows: true,
  zIndex: true,
  zoom: true,

  // SVG-related properties
  fillOpacity: true,
  floodOpacity: true,
  stopOpacity: true,
  strokeDasharray: true,
  strokeDashoffset: true,
  strokeMiterlimit: true,
  strokeOpacity: true,
  strokeWidth: true
};

/**
 * @param {string} prefix vendor-specific prefix, eg: Webkit
 * @param {string} key style name, eg: transitionDuration
 * @return {string} style name prefixed with `prefix`, properly camelCased, eg:
 * WebkitTransitionDuration
 */
function prefixKey(prefix, key) {
  return prefix + key.charAt(0).toUpperCase() + key.substring(1);
}

/**
 * Support style names that may come passed in prefixed by adding permutations
 * of vendor prefixes.
 */
var prefixes = ['Webkit', 'ms', 'Moz', 'O'];

// Using Object.keys here, or else the vanilla for-in loop makes IE8 go into an
// infinite loop, because it iterates over the newly added props too.
Object.keys(isUnitlessNumber).forEach(function (prop) {
  prefixes.forEach(function (prefix) {
    isUnitlessNumber[prefixKey(prefix, prop)] = isUnitlessNumber[prop];
  });
});

/**
 * Most style properties can be unset by doing .style[prop] = '' but IE8
 * doesn't like doing that with shorthand properties so for the properties that
 * IE8 breaks on, which are listed here, we instead unset each of the
 * individual properties. See http://bugs.jquery.com/ticket/12385.
 * The 4-value 'clock' properties like margin, padding, border-width seem to
 * behave without any problems. Curiously, list-style works too without any
 * special prodding.
 */
var shorthandPropertyExpansions = {
  background: {
    backgroundAttachment: true,
    backgroundColor: true,
    backgroundImage: true,
    backgroundPositionX: true,
    backgroundPositionY: true,
    backgroundRepeat: true
  },
  backgroundPosition: {
    backgroundPositionX: true,
    backgroundPositionY: true
  },
  border: {
    borderWidth: true,
    borderStyle: true,
    borderColor: true
  },
  borderBottom: {
    borderBottomWidth: true,
    borderBottomStyle: true,
    borderBottomColor: true
  },
  borderLeft: {
    borderLeftWidth: true,
    borderLeftStyle: true,
    borderLeftColor: true
  },
  borderRight: {
    borderRightWidth: true,
    borderRightStyle: true,
    borderRightColor: true
  },
  borderTop: {
    borderTopWidth: true,
    borderTopStyle: true,
    borderTopColor: true
  },
  font: {
    fontStyle: true,
    fontVariant: true,
    fontWeight: true,
    fontSize: true,
    lineHeight: true,
    fontFamily: true
  },
  outline: {
    outlineWidth: true,
    outlineStyle: true,
    outlineColor: true
  }
};

var CSSProperty$1 = {
  isUnitlessNumber: isUnitlessNumber,
  shorthandPropertyExpansions: shorthandPropertyExpansions
};

var CSSProperty_1 = CSSProperty$1;

var CSSProperty$2 = CSSProperty_1;

var isUnitlessNumber$1 = CSSProperty$2.isUnitlessNumber;

/**
 * Convert a value into the proper css writable value. The style name `name`
 * should be logical (no hyphens), as specified
 * in `CSSProperty.isUnitlessNumber`.
 *
 * @param {string} name CSS property name such as `topMargin`.
 * @param {*} value CSS property value such as `10px`.
 * @param {ReactDOMComponent} component
 * @return {string} Normalized style value with dimensions applied.
 */
function dangerousStyleValue$1(name, value, component) {
  // Note that we've removed escapeTextForBrowser() calls here since the
  // whole string will be escaped when the attribute is injected into
  // the markup. If you provide unsafe user data here they can inject
  // arbitrary CSS which may be problematic (I couldn't repro this):
  // https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
  // http://www.thespanner.co.uk/2007/11/26/ultimate-xss-css-injection/
  // This is not an XSS hole but instead a potential CSS injection issue
  // which has lead to a greater discussion about how we're going to
  // trust URLs moving forward. See #2115901

  var isEmpty = value == null || typeof value === 'boolean' || value === '';
  if (isEmpty) {
    return '';
  }

  if (typeof value === 'number' && value !== 0 && !(isUnitlessNumber$1.hasOwnProperty(name) && isUnitlessNumber$1[name])) {
    return value + 'px'; // Presumes implicit 'px' suffix for unitless numbers
  }

  return ('' + value).trim();
}

var dangerousStyleValue_1 = dangerousStyleValue$1;

if (__DEV__) {
  var getComponentName$3 = getComponentName_1;

  var _require$3 = ReactComponentTreeHook_1,
      getStackAddendumByWorkInProgressFiber = _require$3.getStackAddendumByWorkInProgressFiber;
}

function getCurrentFiberOwnerName$1() {
  if (__DEV__) {
    var fiber = ReactDebugCurrentFiber.current;
    if (fiber === null) {
      return null;
    }
    if (fiber._debugOwner != null) {
      return getComponentName$3(fiber._debugOwner);
    }
  }
  return null;
}

function getCurrentFiberStackAddendum() {
  if (__DEV__) {
    var fiber = ReactDebugCurrentFiber.current;
    if (fiber === null) {
      return null;
    }
    // Safe because if current fiber exists, we are reconciling,
    // and it is guaranteed to be the work-in-progress version.
    return getStackAddendumByWorkInProgressFiber(fiber);
  }
  return null;
}

var ReactDebugCurrentFiber = {
  current: null,
  phase: null,

  getCurrentFiberOwnerName: getCurrentFiberOwnerName$1,
  getCurrentFiberStackAddendum: getCurrentFiberStackAddendum
};

var ReactDebugCurrentFiber_1 = ReactDebugCurrentFiber;

var CSSProperty = CSSProperty_1;
var ExecutionEnvironment$13 = ExecutionEnvironment;

var camelizeStyleName$1 = camelizeStyleName;
var dangerousStyleValue = dangerousStyleValue_1;
var getComponentName$2 = getComponentName_1;
var hyphenateStyleName$1 = hyphenateStyleName;
var memoizeStringOnly$1 = memoizeStringOnly;
var warning$8 = warning;

if (__DEV__) {
  var _require$2 = ReactDebugCurrentFiber_1,
      getCurrentFiberOwnerName = _require$2.getCurrentFiberOwnerName;
}

var processStyleName = memoizeStringOnly$1(function (styleName) {
  return hyphenateStyleName$1(styleName);
});

var hasShorthandPropertyBug = false;
var styleFloatAccessor = 'cssFloat';
if (ExecutionEnvironment$13.canUseDOM) {
  var tempStyle = document.createElement('div').style;
  try {
    // IE8 throws "Invalid argument." if resetting shorthand style properties.
    tempStyle.font = '';
  } catch (e) {
    hasShorthandPropertyBug = true;
  }
  // IE8 only supports accessing cssFloat (standard) as styleFloat
  if (document.documentElement.style.cssFloat === undefined) {
    styleFloatAccessor = 'styleFloat';
  }
}

if (__DEV__) {
  // 'msTransform' is correct, but the other prefixes should be capitalized
  var badVendoredStyleNamePattern = /^(?:webkit|moz|o)[A-Z]/;

  // style values shouldn't contain a semicolon
  var badStyleValueWithSemicolonPattern = /;\s*$/;

  var warnedStyleNames = {};
  var warnedStyleValues = {};
  var warnedForNaNValue = false;

  var warnHyphenatedStyleName = function (name, owner) {
    if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
      return;
    }

    warnedStyleNames[name] = true;
    warning$8(false, 'Unsupported style property %s. Did you mean %s?%s', name, camelizeStyleName$1(name), checkRenderMessage(owner));
  };

  var warnBadVendoredStyleName = function (name, owner) {
    if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
      return;
    }

    warnedStyleNames[name] = true;
    warning$8(false, 'Unsupported vendor-prefixed style property %s. Did you mean %s?%s', name, name.charAt(0).toUpperCase() + name.slice(1), checkRenderMessage(owner));
  };

  var warnStyleValueWithSemicolon = function (name, value, owner) {
    if (warnedStyleValues.hasOwnProperty(value) && warnedStyleValues[value]) {
      return;
    }

    warnedStyleValues[value] = true;
    warning$8(false, 'Style property values shouldn\'t contain a semicolon.%s ' + 'Try "%s: %s" instead.', checkRenderMessage(owner), name, value.replace(badStyleValueWithSemicolonPattern, ''));
  };

  var warnStyleValueIsNaN = function (name, value, owner) {
    if (warnedForNaNValue) {
      return;
    }

    warnedForNaNValue = true;
    warning$8(false, '`NaN` is an invalid value for the `%s` css style property.%s', name, checkRenderMessage(owner));
  };

  var checkRenderMessage = function (owner) {
    var ownerName;
    if (owner != null) {
      // Stack passes the owner manually all the way to CSSPropertyOperations.
      ownerName = getComponentName$2(owner);
    } else {
      // Fiber doesn't pass it but uses ReactDebugCurrentFiber to track it.
      // It is only enabled in development and tracks host components too.
      ownerName = getCurrentFiberOwnerName();
      // TODO: also report the stack.
    }
    if (ownerName) {
      return '\n\nCheck the render method of `' + ownerName + '`.';
    }
    return '';
  };

  /**
   * @param {string} name
   * @param {*} value
   * @param {ReactDOMComponent} component
   */
  var warnValidStyle = function (name, value, component) {
    var owner;
    if (component) {
      owner = component._currentElement._owner;
    }
    if (name.indexOf('-') > -1) {
      warnHyphenatedStyleName(name, owner);
    } else if (badVendoredStyleNamePattern.test(name)) {
      warnBadVendoredStyleName(name, owner);
    } else if (badStyleValueWithSemicolonPattern.test(value)) {
      warnStyleValueWithSemicolon(name, value, owner);
    }

    if (typeof value === 'number' && isNaN(value)) {
      warnStyleValueIsNaN(name, value, owner);
    }
  };
}

/**
 * Operations for dealing with CSS properties.
 */
var CSSPropertyOperations$1 = {

  /**
   * Serializes a mapping of style properties for use as inline styles:
   *
   *   > createMarkupForStyles({width: '200px', height: 0})
   *   "width:200px;height:0;"
   *
   * Undefined values are ignored so that declarative programming is easier.
   * The result should be HTML-escaped before insertion into the DOM.
   *
   * @param {object} styles
   * @param {ReactDOMComponent} component
   * @return {?string}
   */
  createMarkupForStyles: function (styles, component) {
    var serialized = '';
    for (var styleName in styles) {
      if (!styles.hasOwnProperty(styleName)) {
        continue;
      }
      var styleValue = styles[styleName];
      if (__DEV__) {
        warnValidStyle(styleName, styleValue, component);
      }
      if (styleValue != null) {
        serialized += processStyleName(styleName) + ':';
        serialized += dangerousStyleValue(styleName, styleValue, component) + ';';
      }
    }
    return serialized || null;
  },

  /**
   * Sets the value for multiple styles on a node.  If a value is specified as
   * '' (empty string), the corresponding style property will be unset.
   *
   * @param {DOMElement} node
   * @param {object} styles
   * @param {ReactDOMComponent} component
   */
  setValueForStyles: function (node, styles, component) {
    var style = node.style;
    for (var styleName in styles) {
      if (!styles.hasOwnProperty(styleName)) {
        continue;
      }
      if (__DEV__) {
        warnValidStyle(styleName, styles[styleName], component);
      }
      var styleValue = dangerousStyleValue(styleName, styles[styleName], component);
      if (styleName === 'float' || styleName === 'cssFloat') {
        styleName = styleFloatAccessor;
      }
      if (styleValue) {
        style[styleName] = styleValue;
      } else {
        var expansion = hasShorthandPropertyBug && CSSProperty.shorthandPropertyExpansions[styleName];
        if (expansion) {
          // Shorthand property that IE8 won't like unsetting, so unset each
          // component to placate it
          for (var individualStyleName in expansion) {
            style[individualStyleName] = '';
          }
        } else {
          style[styleName] = '';
        }
      }
    }
  }

};

var CSSPropertyOperations_1 = CSSPropertyOperations$1;

var escapeTextContentForBrowser$3 = escapeTextContentForBrowser_1;

/**
 * Escapes attribute value to prevent scripting attacks.
 *
 * @param {*} value Value to escape.
 * @return {string} An escaped string.
 */
function quoteAttributeValueForBrowser$1(value) {
  return '"' + escapeTextContentForBrowser$3(value) + '"';
}

var quoteAttributeValueForBrowser_1 = quoteAttributeValueForBrowser$1;

var DOMProperty$5 = DOMProperty_1;
var ReactDOMComponentTree$13 = ReactDOMComponentTree_1;
var ReactInstrumentation$5 = ReactInstrumentation$2;

var quoteAttributeValueForBrowser = quoteAttributeValueForBrowser_1;
var warning$9 = warning;

var VALID_ATTRIBUTE_NAME_REGEX = new RegExp('^[' + DOMProperty$5.ATTRIBUTE_NAME_START_CHAR + '][' + DOMProperty$5.ATTRIBUTE_NAME_CHAR + ']*$');
var illegalAttributeNameCache = {};
var validatedAttributeNameCache = {};

function isAttributeNameSafe(attributeName) {
  if (validatedAttributeNameCache.hasOwnProperty(attributeName)) {
    return true;
  }
  if (illegalAttributeNameCache.hasOwnProperty(attributeName)) {
    return false;
  }
  if (VALID_ATTRIBUTE_NAME_REGEX.test(attributeName)) {
    validatedAttributeNameCache[attributeName] = true;
    return true;
  }
  illegalAttributeNameCache[attributeName] = true;
  warning$9(false, 'Invalid attribute name: `%s`', attributeName);
  return false;
}

function shouldIgnoreValue(propertyInfo, value) {
  return value == null || propertyInfo.hasBooleanValue && !value || propertyInfo.hasNumericValue && isNaN(value) || propertyInfo.hasPositiveNumericValue && value < 1 || propertyInfo.hasOverloadedBooleanValue && value === false;
}

/**
 * Operations for dealing with DOM properties.
 */
var DOMPropertyOperations$1 = {

  /**
   * Creates markup for the ID property.
   *
   * @param {string} id Unescaped ID.
   * @return {string} Markup string.
   */
  createMarkupForID: function (id) {
    return DOMProperty$5.ID_ATTRIBUTE_NAME + '=' + quoteAttributeValueForBrowser(id);
  },

  setAttributeForID: function (node, id) {
    node.setAttribute(DOMProperty$5.ID_ATTRIBUTE_NAME, id);
  },

  createMarkupForRoot: function () {
    return DOMProperty$5.ROOT_ATTRIBUTE_NAME + '=""';
  },

  setAttributeForRoot: function (node) {
    node.setAttribute(DOMProperty$5.ROOT_ATTRIBUTE_NAME, '');
  },

  /**
   * Creates markup for a property.
   *
   * @param {string} name
   * @param {*} value
   * @return {?string} Markup string, or null if the property was invalid.
   */
  createMarkupForProperty: function (name, value) {
    var propertyInfo = DOMProperty$5.properties.hasOwnProperty(name) ? DOMProperty$5.properties[name] : null;
    if (propertyInfo) {
      if (shouldIgnoreValue(propertyInfo, value)) {
        return '';
      }
      var attributeName = propertyInfo.attributeName;
      if (propertyInfo.hasBooleanValue || propertyInfo.hasOverloadedBooleanValue && value === true) {
        return attributeName + '=""';
      }
      return attributeName + '=' + quoteAttributeValueForBrowser(value);
    } else if (DOMProperty$5.isCustomAttribute(name)) {
      if (value == null) {
        return '';
      }
      return name + '=' + quoteAttributeValueForBrowser(value);
    }
    return null;
  },

  /**
   * Creates markup for a custom property.
   *
   * @param {string} name
   * @param {*} value
   * @return {string} Markup string, or empty string if the property was invalid.
   */
  createMarkupForCustomAttribute: function (name, value) {
    if (!isAttributeNameSafe(name) || value == null) {
      return '';
    }
    return name + '=' + quoteAttributeValueForBrowser(value);
  },

  /**
   * Sets the value for a property on a node.
   *
   * @param {DOMElement} node
   * @param {string} name
   * @param {*} value
   */
  setValueForProperty: function (node, name, value) {
    var propertyInfo = DOMProperty$5.properties.hasOwnProperty(name) ? DOMProperty$5.properties[name] : null;
    if (propertyInfo) {
      var mutationMethod = propertyInfo.mutationMethod;
      if (mutationMethod) {
        mutationMethod(node, value);
      } else if (shouldIgnoreValue(propertyInfo, value)) {
        DOMPropertyOperations$1.deleteValueForProperty(node, name);
        return;
      } else if (propertyInfo.mustUseProperty) {
        // Contrary to `setAttribute`, object properties are properly
        // `toString`ed by IE8/9.
        node[propertyInfo.propertyName] = value;
      } else {
        var attributeName = propertyInfo.attributeName;
        var namespace = propertyInfo.attributeNamespace;
        // `setAttribute` with objects becomes only `[object]` in IE8/9,
        // ('' + value) makes it output the correct toString()-value.
        if (namespace) {
          node.setAttributeNS(namespace, attributeName, '' + value);
        } else if (propertyInfo.hasBooleanValue || propertyInfo.hasOverloadedBooleanValue && value === true) {
          node.setAttribute(attributeName, '');
        } else {
          node.setAttribute(attributeName, '' + value);
        }
      }
    } else if (DOMProperty$5.isCustomAttribute(name)) {
      DOMPropertyOperations$1.setValueForAttribute(node, name, value);
      return;
    }

    if (__DEV__) {
      var payload = {};
      payload[name] = value;
      ReactInstrumentation$5.debugTool.onHostOperation({
        instanceID: ReactDOMComponentTree$13.getInstanceFromNode(node)._debugID,
        type: 'update attribute',
        payload: payload
      });
    }
  },

  setValueForAttribute: function (node, name, value) {
    if (!isAttributeNameSafe(name)) {
      return;
    }
    if (value == null) {
      node.removeAttribute(name);
    } else {
      node.setAttribute(name, '' + value);
    }

    if (__DEV__) {
      var payload = {};
      payload[name] = value;
      ReactInstrumentation$5.debugTool.onHostOperation({
        instanceID: ReactDOMComponentTree$13.getInstanceFromNode(node)._debugID,
        type: 'update attribute',
        payload: payload
      });
    }
  },

  /**
   * Deletes an attributes from a node.
   *
   * @param {DOMElement} node
   * @param {string} name
   */
  deleteValueForAttribute: function (node, name) {
    node.removeAttribute(name);
    if (__DEV__) {
      ReactInstrumentation$5.debugTool.onHostOperation({
        instanceID: ReactDOMComponentTree$13.getInstanceFromNode(node)._debugID,
        type: 'remove attribute',
        payload: name
      });
    }
  },

  /**
   * Deletes the value for a property on a node.
   *
   * @param {DOMElement} node
   * @param {string} name
   */
  deleteValueForProperty: function (node, name) {
    var propertyInfo = DOMProperty$5.properties.hasOwnProperty(name) ? DOMProperty$5.properties[name] : null;
    if (propertyInfo) {
      var mutationMethod = propertyInfo.mutationMethod;
      if (mutationMethod) {
        mutationMethod(node, undefined);
      } else if (propertyInfo.mustUseProperty) {
        var propName = propertyInfo.propertyName;
        if (propertyInfo.hasBooleanValue) {
          node[propName] = false;
        } else {
          node[propName] = '';
        }
      } else {
        node.removeAttribute(propertyInfo.attributeName);
      }
    } else if (DOMProperty$5.isCustomAttribute(name)) {
      node.removeAttribute(name);
    }

    if (__DEV__) {
      ReactInstrumentation$5.debugTool.onHostOperation({
        instanceID: ReactDOMComponentTree$13.getInstanceFromNode(node)._debugID,
        type: 'remove attribute',
        payload: name
      });
    }
  }

};

var DOMPropertyOperations_1 = DOMPropertyOperations$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 *
 * @providesModule ReactPropTypesSecret
 */

var ReactPropTypesSecret$1 = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';

var ReactPropTypesSecret_1 = ReactPropTypesSecret$1;

var React$1 = React;
var ReactPropTypesSecret = ReactPropTypesSecret_1;

var warning$11 = warning;

var hasReadOnlyValue = {
  'button': true,
  'checkbox': true,
  'image': true,
  'hidden': true,
  'radio': true,
  'reset': true,
  'submit': true
};

var propTypes = {
  value: function (props, propName, componentName) {
    if (!props[propName] || hasReadOnlyValue[props.type] || props.onChange || props.readOnly || props.disabled) {
      return null;
    }
    return new Error('You provided a `value` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultValue`. Otherwise, ' + 'set either `onChange` or `readOnly`.');
  },
  checked: function (props, propName, componentName) {
    if (!props[propName] || props.onChange || props.readOnly || props.disabled) {
      return null;
    }
    return new Error('You provided a `checked` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultChecked`. Otherwise, ' + 'set either `onChange` or `readOnly`.');
  },
  onChange: React$1.PropTypes.func
};

var loggedTypeFailures = {};
function getDeclarationErrorAddendum$1(ownerName) {
  if (ownerName) {
    return '\n\nCheck the render method of `' + ownerName + '`.';
  }
  return '';
}

/**
 * Provide a linked `value` attribute for controlled forms. You should not use
 * this outside of the ReactDOM controlled form components.
 */
var ReactControlledValuePropTypes$1 = {
  checkPropTypes: function (tagName, props, ownerName) {
    for (var propName in propTypes) {
      if (propTypes.hasOwnProperty(propName)) {
        var error = propTypes[propName](props, propName, tagName, 'prop', null, ReactPropTypesSecret);
      }
      if (error instanceof Error && !(error.message in loggedTypeFailures)) {
        // Only monitor this failure once because there tends to be a lot of the
        // same error.
        loggedTypeFailures[error.message] = true;

        var addendum = getDeclarationErrorAddendum$1(ownerName);
        warning$11(false, 'Failed form propType: %s%s', error.message, addendum);
      }
    }
  }
};

var ReactControlledValuePropTypes_1 = ReactControlledValuePropTypes$1;

var DOMPropertyOperations$2 = DOMPropertyOperations_1;
var ReactControlledValuePropTypes = ReactControlledValuePropTypes_1;
var ReactDOMComponentTree$14 = ReactDOMComponentTree_1;

var invariant$13 = invariant;
var warning$10 = warning;

var didWarnValueDefaultValue = false;
var didWarnCheckedDefaultChecked = false;
var didWarnControlledToUncontrolled = false;
var didWarnUncontrolledToControlled = false;

function isControlled(props) {
  var usesChecked = props.type === 'checkbox' || props.type === 'radio';
  return usesChecked ? props.checked != null : props.value != null;
}

/**
 * Implements an <input> host component that allows setting these optional
 * props: `checked`, `value`, `defaultChecked`, and `defaultValue`.
 *
 * If `checked` or `value` are not supplied (or null/undefined), user actions
 * that affect the checked state or value will trigger updates to the element.
 *
 * If they are supplied (and not null/undefined), the rendered element will not
 * trigger updates to the element. Instead, the props must change in order for
 * the rendered element to be updated.
 *
 * The rendered element will be initialized as unchecked (or `defaultChecked`)
 * with an empty value (or `defaultValue`).
 *
 * @see http://www.w3.org/TR/2012/WD-html5-20121025/the-input-element.html
 */
var ReactDOMInput$1 = {
  getHostProps: function (inst, props) {
    var value = props.value;
    var checked = props.checked;

    var hostProps = Object.assign({
      // Make sure we set .type before any other properties (setting .value
      // before .type means .value is lost in IE11 and below)
      type: undefined,
      // Make sure we set .step before .value (setting .value before .step
      // means .value is rounded on mount, based upon step precision)
      step: undefined,
      // Make sure we set .min & .max before .value (to ensure proper order
      // in corner cases such as min or max deriving from value, e.g. Issue #7170)
      min: undefined,
      max: undefined
    }, props, {
      defaultChecked: undefined,
      defaultValue: undefined,
      value: value != null ? value : inst._wrapperState.initialValue,
      checked: checked != null ? checked : inst._wrapperState.initialChecked
    });

    return hostProps;
  },

  mountWrapper: function (inst, props) {
    if (__DEV__) {
      var owner = inst._currentElement._owner;
      ReactControlledValuePropTypes.checkPropTypes('input', props, owner ? owner.getName() : null);

      if (props.checked !== undefined && props.defaultChecked !== undefined && !didWarnCheckedDefaultChecked) {
        warning$10(false, '%s contains an input of type %s with both checked and defaultChecked props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the checked prop, or the defaultChecked prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', owner && owner.getName() || 'A component', props.type);
        didWarnCheckedDefaultChecked = true;
      }
      if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue) {
        warning$10(false, '%s contains an input of type %s with both value and defaultValue props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', owner && owner.getName() || 'A component', props.type);
        didWarnValueDefaultValue = true;
      }
    }

    var defaultValue = props.defaultValue;
    inst._wrapperState = {
      initialChecked: props.checked != null ? props.checked : props.defaultChecked,
      initialValue: props.value != null ? props.value : defaultValue,
      listeners: null
    };

    if (__DEV__) {
      inst._wrapperState.controlled = isControlled(props);
    }
  },

  updateWrapper: function (inst) {
    var props = inst._currentElement.props;

    if (__DEV__) {
      var controlled = isControlled(props);
      var owner = inst._currentElement._owner;

      if (!inst._wrapperState.controlled && controlled && !didWarnUncontrolledToControlled) {
        warning$10(false, '%s is changing an uncontrolled input of type %s to be controlled. ' + 'Input elements should not switch from uncontrolled to controlled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components', owner && owner.getName() || 'A component', props.type);
        didWarnUncontrolledToControlled = true;
      }
      if (inst._wrapperState.controlled && !controlled && !didWarnControlledToUncontrolled) {
        warning$10(false, '%s is changing a controlled input of type %s to be uncontrolled. ' + 'Input elements should not switch from controlled to uncontrolled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components', owner && owner.getName() || 'A component', props.type);
        didWarnControlledToUncontrolled = true;
      }
    }

    var checked = props.checked;
    if (checked != null) {
      DOMPropertyOperations$2.setValueForProperty(ReactDOMComponentTree$14.getNodeFromInstance(inst), 'checked', checked || false);
    }

    var node = ReactDOMComponentTree$14.getNodeFromInstance(inst);
    var value = props.value;
    if (value != null) {

      // Cast `value` to a string to ensure the value is set correctly. While
      // browsers typically do this as necessary, jsdom doesn't.
      var newValue = '' + value;

      // To avoid side effects (such as losing text selection), only set value if changed
      if (newValue !== node.value) {
        node.value = newValue;
      }
    } else {
      if (props.value == null && props.defaultValue != null) {
        // In Chrome, assigning defaultValue to certain input types triggers input validation.
        // For number inputs, the display value loses trailing decimal points. For email inputs,
        // Chrome raises "The specified value <x> is not a valid email address".
        //
        // Here we check to see if the defaultValue has actually changed, avoiding these problems
        // when the user is inputting text
        //
        // https://github.com/facebook/react/issues/7253
        if (node.defaultValue !== '' + props.defaultValue) {
          node.defaultValue = '' + props.defaultValue;
        }
      }
      if (props.checked == null && props.defaultChecked != null) {
        node.defaultChecked = !!props.defaultChecked;
      }
    }
  },

  postMountWrapper: function (inst) {
    var props = inst._currentElement.props;

    // This is in postMount because we need access to the DOM node, which is not
    // available until after the component has mounted.
    var node = ReactDOMComponentTree$14.getNodeFromInstance(inst);

    // Detach value from defaultValue. We won't do anything if we're working on
    // submit or reset inputs as those values & defaultValues are linked. They
    // are not resetable nodes so this operation doesn't matter and actually
    // removes browser-default values (eg "Submit Query") when no value is
    // provided.

    switch (props.type) {
      case 'submit':
      case 'reset':
        break;
      case 'color':
      case 'date':
      case 'datetime':
      case 'datetime-local':
      case 'month':
      case 'time':
      case 'week':
        // This fixes the no-show issue on iOS Safari and Android Chrome:
        // https://github.com/facebook/react/issues/7233
        node.value = '';
        node.value = node.defaultValue;
        break;
      default:
        node.value = node.value;
        break;
    }

    // Normally, we'd just do `node.checked = node.checked` upon initial mount, less this bug
    // this is needed to work around a chrome bug where setting defaultChecked
    // will sometimes influence the value of checked (even after detachment).
    // Reference: https://bugs.chromium.org/p/chromium/issues/detail?id=608416
    // We need to temporarily unset name to avoid disrupting radio button groups.
    var name = node.name;
    if (name !== '') {
      node.name = '';
    }
    node.defaultChecked = !node.defaultChecked;
    node.defaultChecked = !node.defaultChecked;
    if (name !== '') {
      node.name = name;
    }
  },

  restoreControlledState: function (inst) {
    if (inst._rootNodeID) {
      // DOM component is still mounted; update
      ReactDOMInput$1.updateWrapper(inst);
    }
    var props = inst._currentElement.props;
    updateNamedCousins(inst, props);
  }
};

function updateNamedCousins(thisInstance, props) {
  var name = props.name;
  if (props.type === 'radio' && name != null) {
    var rootNode = ReactDOMComponentTree$14.getNodeFromInstance(thisInstance);
    var queryRoot = rootNode;

    while (queryRoot.parentNode) {
      queryRoot = queryRoot.parentNode;
    }

    // If `rootNode.form` was non-null, then we could try `form.elements`,
    // but that sometimes behaves strangely in IE8. We could also try using
    // `form.getElementsByName`, but that will only return direct children
    // and won't include inputs that use the HTML5 `form=` attribute. Since
    // the input might not even be in a form. It might not even be in the
    // document. Let's just use the local `querySelectorAll` to ensure we don't
    // miss anything.
    var group = queryRoot.querySelectorAll('input[name=' + JSON.stringify('' + name) + '][type="radio"]');

    for (var i = 0; i < group.length; i++) {
      var otherNode = group[i];
      if (otherNode === rootNode || otherNode.form !== rootNode.form) {
        continue;
      }
      // This will throw if radio buttons rendered by different copies of React
      // and the same name are rendered into the same form (same as #1939).
      // That's probably okay; we don't support it just as we don't support
      // mixing React radio buttons with non-React ones.
      var otherInstance = ReactDOMComponentTree$14.getInstanceFromNode(otherNode);
      invariant$13(otherInstance, 'ReactDOMInput: Mixing React and non-React radio inputs with the ' + 'same `name` is not supported.');
      // If this is a controlled radio button group, forcing the input that
      // was previously checked to update will cause it to be come re-checked
      // as appropriate.
      if (otherInstance._rootNodeID) {
        ReactDOMInput$1.updateWrapper(otherInstance);
      }
    }
  }
}

var ReactDOMInput_1 = ReactDOMInput$1;

var ReactControlledValuePropTypes$2 = ReactControlledValuePropTypes_1;
var ReactDOMComponentTree$16 = ReactDOMComponentTree_1;

var warning$13 = warning;

var didWarnValueDefaultValue$1 = false;

function getDeclarationErrorAddendum$2(owner) {
  if (owner) {
    var name = owner.getName();
    if (name) {
      return '\n\nCheck the render method of `' + name + '`.';
    }
  }
  return '';
}

var valuePropNames = ['value', 'defaultValue'];

/**
 * Validation function for `value` and `defaultValue`.
 * @private
 */
function checkSelectPropTypes(inst, props) {
  var owner = inst._currentElement._owner;
  ReactControlledValuePropTypes$2.checkPropTypes('select', props, owner ? owner.getName() : null);

  for (var i = 0; i < valuePropNames.length; i++) {
    var propName = valuePropNames[i];
    if (props[propName] == null) {
      continue;
    }
    var isArray = Array.isArray(props[propName]);
    if (props.multiple && !isArray) {
      warning$13(false, 'The `%s` prop supplied to <select> must be an array if ' + '`multiple` is true.%s', propName, getDeclarationErrorAddendum$2(owner));
    } else if (!props.multiple && isArray) {
      warning$13(false, 'The `%s` prop supplied to <select> must be a scalar ' + 'value if `multiple` is false.%s', propName, getDeclarationErrorAddendum$2(owner));
    }
  }
}

/**
 * @param {ReactDOMComponent} inst
 * @param {boolean} multiple
 * @param {*} propValue A stringable (with `multiple`, a list of stringables).
 * @private
 */
function updateOptions(inst, multiple, propValue) {
  var options = ReactDOMComponentTree$16.getNodeFromInstance(inst).options;

  if (multiple) {
    var selectedValue = {};
    for (var i = 0; i < propValue.length; i++) {
      selectedValue['' + propValue[i]] = true;
    }
    for (var _i = 0; _i < options.length; _i++) {
      var selected = selectedValue.hasOwnProperty(options[_i].value);
      if (options[_i].selected !== selected) {
        options[_i].selected = selected;
      }
    }
  } else {
    // Do not set `select.value` as exact behavior isn't consistent across all
    // browsers for all cases.
    var _selectedValue = '' + propValue;
    for (var _i2 = 0; _i2 < options.length; _i2++) {
      if (options[_i2].value === _selectedValue) {
        options[_i2].selected = true;
        return;
      }
    }
    if (options.length) {
      options[0].selected = true;
    }
  }
}

/**
 * Implements a <select> host component that allows optionally setting the
 * props `value` and `defaultValue`. If `multiple` is false, the prop must be a
 * stringable. If `multiple` is true, the prop must be an array of stringables.
 *
 * If `value` is not supplied (or null/undefined), user actions that change the
 * selected option will trigger updates to the rendered options.
 *
 * If it is supplied (and not null/undefined), the rendered options will not
 * update in response to user actions. Instead, the `value` prop must change in
 * order for the rendered options to update.
 *
 * If `defaultValue` is provided, any options with the supplied values will be
 * selected.
 */
var ReactDOMSelect$2 = {
  getHostProps: function (inst, props) {
    return Object.assign({}, props, {
      value: undefined
    });
  },

  mountWrapper: function (inst, props) {
    if (__DEV__) {
      checkSelectPropTypes(inst, props);
    }

    var value = props.value;
    inst._wrapperState = {
      initialValue: value != null ? value : props.defaultValue,
      listeners: null,
      wasMultiple: !!props.multiple
    };

    if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue$1) {
      warning$13(false, 'Select elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled select ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components');
      didWarnValueDefaultValue$1 = true;
    }
  },

  getSelectValueContext: function (inst) {
    // ReactDOMOption looks at this initial value so the initial generated
    // markup has correct `selected` attributes
    return inst._wrapperState.initialValue;
  },

  postUpdateWrapper: function (inst) {
    var props = inst._currentElement.props;

    // After the initial mount, we control selected-ness manually so don't pass
    // this value down
    inst._wrapperState.initialValue = undefined;

    var wasMultiple = inst._wrapperState.wasMultiple;
    inst._wrapperState.wasMultiple = !!props.multiple;

    var value = props.value;
    if (value != null) {
      updateOptions(inst, !!props.multiple, value);
    } else if (wasMultiple !== !!props.multiple) {
      // For simplicity, reapply `defaultValue` if `multiple` is toggled.
      if (props.defaultValue != null) {
        updateOptions(inst, !!props.multiple, props.defaultValue);
      } else {
        // Revert the select back to its default unselected state.
        updateOptions(inst, !!props.multiple, props.multiple ? [] : '');
      }
    }
  },

  restoreControlledState: function (inst) {
    if (inst._rootNodeID) {
      var props = inst._currentElement.props;
      var value = props.value;

      if (value != null) {
        updateOptions(inst, !!props.multiple, value);
      }
    }
  }
};

var ReactDOMSelect_1 = ReactDOMSelect$2;

var React$2 = React;
var ReactDOMComponentTree$15 = ReactDOMComponentTree_1;
var ReactDOMSelect$1 = ReactDOMSelect_1;

var warning$12 = warning;
var didWarnInvalidOptionChildren = false;

function flattenChildren(children) {
  var content = '';

  // Flatten children and warn if they aren't strings or numbers;
  // invalid types are ignored.
  React$2.Children.forEach(children, function (child) {
    if (child == null) {
      return;
    }
    if (typeof child === 'string' || typeof child === 'number') {
      content += child;
    } else if (!didWarnInvalidOptionChildren) {
      didWarnInvalidOptionChildren = true;
      warning$12(false, 'Only strings and numbers are supported as <option> children.');
    }
  });

  return content;
}

/**
 * Implements an <option> host component that warns when `selected` is set.
 */
var ReactDOMOption$1 = {
  mountWrapper: function (inst, props, hostParent) {
    // TODO (yungsters): Remove support for `selected` in <option>.
    if (__DEV__) {
      warning$12(props.selected == null, 'Use the `defaultValue` or `value` props on <select> instead of ' + 'setting `selected` on <option>.');
    }

    // Look up whether this option is 'selected'
    var selectValue = null;
    if (hostParent != null) {
      var selectParent = hostParent;

      if (selectParent._tag === 'optgroup') {
        selectParent = selectParent._hostParent;
      }

      if (selectParent != null && selectParent._tag === 'select') {
        selectValue = ReactDOMSelect$1.getSelectValueContext(selectParent);
      }
    }

    // If the value is null (e.g., no specified value or after initial mount)
    // or missing (e.g., for <datalist>), we don't change props.selected
    var selected = null;
    if (selectValue != null) {
      var value;
      if (props.value != null) {
        value = props.value + '';
      } else {
        value = flattenChildren(props.children);
      }
      selected = false;
      if (Array.isArray(selectValue)) {
        // multiple
        for (var i = 0; i < selectValue.length; i++) {
          if ('' + selectValue[i] === value) {
            selected = true;
            break;
          }
        }
      } else {
        selected = '' + selectValue === value;
      }
    }

    inst._wrapperState = { selected: selected };
  },

  postMountWrapper: function (inst) {
    // value="" should make a value attribute (#6219)
    var props = inst._currentElement.props;
    if (props.value != null) {
      var node = ReactDOMComponentTree$15.getNodeFromInstance(inst);
      node.setAttribute('value', props.value);
    }
  },

  getHostProps: function (inst, props) {
    var hostProps = Object.assign({ selected: undefined, children: undefined }, props);

    // Read state only from initial mount because <select> updates value
    // manually; we need the initial state only for server rendering
    if (inst._wrapperState.selected != null) {
      hostProps.selected = inst._wrapperState.selected;
    }

    var content = flattenChildren(props.children);

    if (content) {
      hostProps.children = content;
    }

    return hostProps;
  }

};

var ReactDOMOption_1 = ReactDOMOption$1;

var ReactControlledValuePropTypes$3 = ReactControlledValuePropTypes_1;
var ReactDOMComponentTree$17 = ReactDOMComponentTree_1;

var invariant$14 = invariant;
var warning$14 = warning;

var didWarnValDefaultVal = false;

/**
 * Implements a <textarea> host component that allows setting `value`, and
 * `defaultValue`. This differs from the traditional DOM API because value is
 * usually set as PCDATA children.
 *
 * If `value` is not supplied (or null/undefined), user actions that affect the
 * value will trigger updates to the element.
 *
 * If `value` is supplied (and not null/undefined), the rendered element will
 * not trigger updates to the element. Instead, the `value` prop must change in
 * order for the rendered element to be updated.
 *
 * The rendered element will be initialized with an empty value, the prop
 * `defaultValue` if specified, or the children content (deprecated).
 */
var ReactDOMTextarea$1 = {
  getHostProps: function (inst, props) {
    invariant$14(props.dangerouslySetInnerHTML == null, '`dangerouslySetInnerHTML` does not make sense on <textarea>.');

    // Always set children to the same thing. In IE9, the selection range will
    // get reset if `textContent` is mutated.  We could add a check in setTextContent
    // to only set the value if/when the value differs from the node value (which would
    // completely solve this IE9 bug), but Sebastian+Ben seemed to like this solution.
    // The value can be a boolean or object so that's why it's forced to be a string.
    var hostProps = Object.assign({}, props, {
      value: undefined,
      defaultValue: undefined,
      children: '' + inst._wrapperState.initialValue
    });

    return hostProps;
  },

  mountWrapper: function (inst, props) {
    if (__DEV__) {
      var owner = inst._currentElement._owner;
      ReactControlledValuePropTypes$3.checkPropTypes('textarea', props, owner ? owner.getName() : null);
      if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValDefaultVal) {
        warning$14(false, 'Textarea elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled textarea ' + 'and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components');
        didWarnValDefaultVal = true;
      }
    }

    var value = props.value;
    var initialValue = value;

    // Only bother fetching default value if we're going to use it
    if (value == null) {
      var defaultValue = props.defaultValue;
      // TODO (yungsters): Remove support for children content in <textarea>.
      var children = props.children;
      if (children != null) {
        if (__DEV__) {
          warning$14(false, 'Use the `defaultValue` or `value` props instead of setting ' + 'children on <textarea>.');
        }
        invariant$14(defaultValue == null, 'If you supply `defaultValue` on a <textarea>, do not pass children.');
        if (Array.isArray(children)) {
          invariant$14(children.length <= 1, '<textarea> can only have at most one child.');
          children = children[0];
        }

        defaultValue = '' + children;
      }
      if (defaultValue == null) {
        defaultValue = '';
      }
      initialValue = defaultValue;
    }

    inst._wrapperState = {
      initialValue: '' + initialValue,
      listeners: null
    };
  },

  updateWrapper: function (inst) {
    var props = inst._currentElement.props;

    var node = ReactDOMComponentTree$17.getNodeFromInstance(inst);
    var value = props.value;
    if (value != null) {
      // Cast `value` to a string to ensure the value is set correctly. While
      // browsers typically do this as necessary, jsdom doesn't.
      var newValue = '' + value;

      // To avoid side effects (such as losing text selection), only set value if changed
      if (newValue !== node.value) {
        node.value = newValue;
      }
      if (props.defaultValue == null) {
        node.defaultValue = newValue;
      }
    }
    if (props.defaultValue != null) {
      node.defaultValue = props.defaultValue;
    }
  },

  postMountWrapper: function (inst) {
    // This is in postMount because we need access to the DOM node, which is not
    // available until after the component has mounted.
    var node = ReactDOMComponentTree$17.getNodeFromInstance(inst);
    var textContent = node.textContent;

    // Only set node.value if textContent is equal to the expected
    // initial value. In IE10/IE11 there is a bug where the placeholder attribute
    // will populate textContent as well.
    // https://developer.microsoft.com/microsoft-edge/platform/issues/101525/
    if (textContent === inst._wrapperState.initialValue) {
      node.value = textContent;
    }
  },

  restoreControlledState: function (inst) {
    if (inst._rootNodeID) {
      // DOM component is still mounted; update
      ReactDOMTextarea$1.updateWrapper(inst);
    }
  }

};

var ReactDOMTextarea_1 = ReactDOMTextarea$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactInstanceMap
 */

/**
 * `ReactInstanceMap` maintains a mapping from a public facing stateful
 * instance (key) and the internal representation (value). This allows public
 * methods to accept the user facing instance as an argument and map them back
 * to internal methods.
 */

// TODO: Replace this with ES6: var ReactInstanceMap = new Map();

var ReactInstanceMap$1 = {

  /**
   * This API should be called `delete` but we'd have to make sure to always
   * transform these to strings for IE support. When this transform is fully
   * supported we can rename it.
   */
  remove: function (key) {
    key._reactInternalInstance = undefined;
  },

  get: function (key) {
    return key._reactInternalInstance;
  },

  has: function (key) {
    return key._reactInternalInstance !== undefined;
  },

  set: function (key, value) {
    key._reactInternalInstance = value;
  }

};

var ReactInstanceMap_1 = ReactInstanceMap$1;

var _require$4 = ReactTypeOfWork;
var ClassComponent$1 = _require$4.ClassComponent;

var emptyObject$1 = emptyObject;
var invariant$16 = invariant;

/**
 * @param {?object} object
 * @return {boolean} True if `object` is a valid owner.
 * @final
 */
function isValidOwner(object) {
  return !!(object && typeof object.attachRef === 'function' && typeof object.detachRef === 'function');
}

/**
 * ReactOwners are capable of storing references to owned components.
 *
 * All components are capable of //being// referenced by owner components, but
 * only ReactOwner components are capable of //referencing// owned components.
 * The named reference is known as a "ref".
 *
 * Refs are available when mounted and updated during reconciliation.
 *
 *   var MyComponent = React.createClass({
 *     render: function() {
 *       return (
 *         <div onClick={this.handleClick}>
 *           <CustomComponent ref="custom" />
 *         </div>
 *       );
 *     },
 *     handleClick: function() {
 *       this.refs.custom.handleClick();
 *     },
 *     componentDidMount: function() {
 *       this.refs.custom.initialize();
 *     }
 *   });
 *
 * Refs should rarely be used. When refs are used, they should only be done to
 * control data that is not handled by React's data flow.
 *
 * @class ReactOwner
 */
var ReactOwner$1 = {
  /**
   * Adds a component by ref to an owner component.
   *
   * @param {ReactComponent} component Component to reference.
   * @param {string} ref Name by which to refer to the component.
   * @param {ReactOwner} owner Component on which to record the ref.
   * @final
   * @internal
   */
  addComponentAsRefTo: function (component, ref, owner) {
    if (owner && owner.tag === ClassComponent$1) {
      var inst = owner.stateNode;
      var refs = inst.refs === emptyObject$1 ? inst.refs = {} : inst.refs;
      refs[ref] = component.getPublicInstance();
    } else {
      invariant$16(isValidOwner(owner), 'addComponentAsRefTo(...): Only a ReactOwner can have refs. You might ' + 'be adding a ref to a component that was not created inside a component\'s ' + '`render` method, or you have multiple copies of React loaded ' + '(details: https://fb.me/react-refs-must-have-owner).');
      owner.attachRef(ref, component);
    }
  },

  /**
   * Removes a component by ref from an owner component.
   *
   * @param {ReactComponent} component Component to dereference.
   * @param {string} ref Name of the ref to remove.
   * @param {ReactOwner} owner Component on which the ref is recorded.
   * @final
   * @internal
   */
  removeComponentAsRefFrom: function (component, ref, owner) {
    if (owner && owner.tag === ClassComponent$1) {
      var inst = owner.stateNode;
      if (inst && inst.refs[ref] === component.getPublicInstance()) {
        delete inst.refs[ref];
      }
    } else {
      invariant$16(isValidOwner(owner), 'removeComponentAsRefFrom(...): Only a ReactOwner can have refs. You might ' + 'be removing a ref to a component that was not created inside a component\'s ' + '`render` method, or you have multiple copies of React loaded ' + '(details: https://fb.me/react-refs-must-have-owner).');
      var ownerPublicInstance = owner.getPublicInstance();
      // Check that `component`'s owner is still alive and that `component` is still the current ref
      // because we do not want to detach the ref if another component stole it.
      if (ownerPublicInstance && ownerPublicInstance.refs[ref] === component.getPublicInstance()) {
        owner.detachRef(ref);
      }
    }
  }

};

var ReactOwner_1 = ReactOwner$1;

var ReactCompositeComponentTypes$1 = {
  ImpureClass: 0,
  PureClass: 1,
  StatelessFunctional: 2
}; /**
    * Copyright 2013-present, Facebook, Inc.
    * All rights reserved.
    *
    * This source code is licensed under the BSD-style license found in the
    * LICENSE file in the root directory of this source tree. An additional grant
    * of patent rights can be found in the PATENTS file in the same directory.
    *
    * @providesModule ReactCompositeComponentTypes
    *
    */

var ReactOwner = ReactOwner_1;

var ReactRef$1 = {};

if (__DEV__) {
  var ReactCompositeComponentTypes = ReactCompositeComponentTypes$1;
  var ReactComponentTreeHook$2 = ReactComponentTreeHook_1;
  var warning$16 = warning;

  var warnedAboutStatelessRefs = {};
}

function attachRef(ref, component, owner) {
  if (__DEV__) {
    if (component._compositeType === ReactCompositeComponentTypes.StatelessFunctional) {
      var info = '';
      var ownerName = void 0;
      if (owner) {
        if (typeof owner.getName === 'function') {
          ownerName = owner.getName();
        }
        if (ownerName) {
          info += '\n\nCheck the render method of `' + ownerName + '`.';
        }
      }

      var warningKey = ownerName || component._debugID;
      var element = component._currentElement;
      if (element && element._source) {
        warningKey = element._source.fileName + ':' + element._source.lineNumber;
      }
      if (!warnedAboutStatelessRefs[warningKey]) {
        warnedAboutStatelessRefs[warningKey] = true;
        warning$16(false, 'Stateless function components cannot be given refs. ' + 'Attempts to access this ref will fail.%s%s', info, ReactComponentTreeHook$2.getStackAddendumByID(component._debugID));
      }
    }
  }

  if (typeof ref === 'function') {
    ref(component.getPublicInstance());
  } else {
    // Legacy ref
    ReactOwner.addComponentAsRefTo(component, ref, owner);
  }
}

function detachRef(ref, component, owner) {
  if (typeof ref === 'function') {
    ref(null);
  } else {
    // Legacy ref
    ReactOwner.removeComponentAsRefFrom(component, ref, owner);
  }
}

ReactRef$1.attachRefs = function (instance, element) {
  if (element === null || typeof element !== 'object') {
    return;
  }
  var ref = element.ref;
  if (ref != null) {
    attachRef(ref, instance, element._owner);
  }
};

ReactRef$1.shouldUpdateRefs = function (prevElement, nextElement) {
  // If either the owner or a `ref` has changed, make sure the newest owner
  // has stored a reference to `this`, and the previous owner (if different)
  // has forgotten the reference to `this`. We use the element instead
  // of the public this.props because the post processing cannot determine
  // a ref. The ref conceptually lives on the element.

  // TODO: Should this even be possible? The owner cannot change because
  // it's forbidden by shouldUpdateReactComponent. The ref can change
  // if you swap the keys of but not the refs. Reconsider where this check
  // is made. It probably belongs where the key checking and
  // instantiateReactComponent is done.

  var prevRef = null;
  var prevOwner = null;
  if (prevElement !== null && typeof prevElement === 'object') {
    prevRef = prevElement.ref;
    prevOwner = prevElement._owner;
  }

  var nextRef = null;
  var nextOwner = null;
  if (nextElement !== null && typeof nextElement === 'object') {
    nextRef = nextElement.ref;
    nextOwner = nextElement._owner;
  }

  return prevRef !== nextRef ||
  // If owner changes but we have an unchanged function ref, don't update refs
  typeof nextRef === 'string' && nextOwner !== prevOwner;
};

ReactRef$1.detachRefs = function (instance, element) {
  if (element === null || typeof element !== 'object') {
    return;
  }
  var ref = element.ref;
  if (ref != null) {
    detachRef(ref, instance, element._owner);
  }
};

var ReactRef_1 = ReactRef$1;

var ReactRef = ReactRef_1;
var ReactInstrumentation$7 = ReactInstrumentation$2;

var warning$15 = warning;

/**
 * Helper to call ReactRef.attachRefs with this composite component, split out
 * to avoid allocations in the transaction mount-ready queue.
 */
function attachRefs() {
  ReactRef.attachRefs(this, this._currentElement);
}

var ReactReconciler$2 = {

  /**
   * Initializes the component, renders markup, and registers event listeners.
   *
   * @param {ReactComponent} internalInstance
   * @param {ReactReconcileTransaction|ReactServerRenderingTransaction} transaction
   * @param {?object} the containing host component instance
   * @param {?object} info about the host container
   * @return {?string} Rendered markup to be inserted into the DOM.
   * @final
   * @internal
   */
  mountComponent: function (internalInstance, transaction, hostParent, hostContainerInfo, context, parentDebugID // 0 in production and for roots
  ) {
    if (__DEV__) {
      if (internalInstance._debugID !== 0) {
        ReactInstrumentation$7.debugTool.onBeforeMountComponent(internalInstance._debugID, internalInstance._currentElement, parentDebugID);
      }
    }
    var markup = internalInstance.mountComponent(transaction, hostParent, hostContainerInfo, context, parentDebugID);
    if (internalInstance._currentElement && internalInstance._currentElement.ref != null) {
      transaction.getReactMountReady().enqueue(attachRefs, internalInstance);
    }
    if (__DEV__) {
      if (internalInstance._debugID !== 0) {
        ReactInstrumentation$7.debugTool.onMountComponent(internalInstance._debugID);
      }
    }
    return markup;
  },

  /**
   * Returns a value that can be passed to
   * ReactComponentEnvironment.replaceNodeWithMarkup.
   */
  getHostNode: function (internalInstance) {
    return internalInstance.getHostNode();
  },

  /**
   * Releases any resources allocated by `mountComponent`.
   *
   * @final
   * @internal
   */
  unmountComponent: function (internalInstance, safely, skipLifecycle) {
    if (__DEV__) {
      if (internalInstance._debugID !== 0) {
        ReactInstrumentation$7.debugTool.onBeforeUnmountComponent(internalInstance._debugID);
      }
    }
    ReactRef.detachRefs(internalInstance, internalInstance._currentElement);
    internalInstance.unmountComponent(safely, skipLifecycle);
    if (__DEV__) {
      if (internalInstance._debugID !== 0) {
        ReactInstrumentation$7.debugTool.onUnmountComponent(internalInstance._debugID);
      }
    }
  },

  /**
   * Update a component using a new element.
   *
   * @param {ReactComponent} internalInstance
   * @param {ReactElement} nextElement
   * @param {ReactReconcileTransaction} transaction
   * @param {object} context
   * @internal
   */
  receiveComponent: function (internalInstance, nextElement, transaction, context) {
    var prevElement = internalInstance._currentElement;

    if (nextElement === prevElement && context === internalInstance._context) {
      // Since elements are immutable after the owner is rendered,
      // we can do a cheap identity compare here to determine if this is a
      // superfluous reconcile. It's possible for state to be mutable but such
      // change should trigger an update of the owner which would recreate
      // the element. We explicitly check for the existence of an owner since
      // it's possible for an element created outside a composite to be
      // deeply mutated and reused.

      // TODO: Bailing out early is just a perf optimization right?
      // TODO: Removing the return statement should affect correctness?
      return;
    }

    if (__DEV__) {
      if (internalInstance._debugID !== 0) {
        ReactInstrumentation$7.debugTool.onBeforeUpdateComponent(internalInstance._debugID, nextElement);
      }
    }

    var refsChanged = ReactRef.shouldUpdateRefs(prevElement, nextElement);

    if (refsChanged) {
      ReactRef.detachRefs(internalInstance, prevElement);
    }

    internalInstance.receiveComponent(nextElement, transaction, context);

    if (refsChanged && internalInstance._currentElement && internalInstance._currentElement.ref != null) {
      transaction.getReactMountReady().enqueue(attachRefs, internalInstance);
    }

    if (__DEV__) {
      if (internalInstance._debugID !== 0) {
        ReactInstrumentation$7.debugTool.onUpdateComponent(internalInstance._debugID);
      }
    }
  },

  /**
   * Flush any dirty changes in a component.
   *
   * @param {ReactComponent} internalInstance
   * @param {ReactReconcileTransaction} transaction
   * @internal
   */
  performUpdateIfNecessary: function (internalInstance, transaction, updateBatchNumber) {
    if (internalInstance._updateBatchNumber !== updateBatchNumber) {
      // The component's enqueued batch number should always be the current
      // batch or the following one.
      warning$15(internalInstance._updateBatchNumber == null || internalInstance._updateBatchNumber === updateBatchNumber + 1, 'performUpdateIfNecessary: Unexpected batch number (current %s, ' + 'pending %s)', updateBatchNumber, internalInstance._updateBatchNumber);
      return;
    }
    if (__DEV__) {
      if (internalInstance._debugID !== 0) {
        ReactInstrumentation$7.debugTool.onBeforeUpdateComponent(internalInstance._debugID, internalInstance._currentElement);
      }
    }
    internalInstance.performUpdateIfNecessary(transaction);
    if (__DEV__) {
      if (internalInstance._debugID !== 0) {
        ReactInstrumentation$7.debugTool.onUpdateComponent(internalInstance._debugID);
      }
    }
  }

};

var ReactReconciler_1 = ReactReconciler$2;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule KeyEscapeUtils
 *
 */

/**
 * Escape and wrap key so it is safe to use as a reactid
 *
 * @param {string} key to be escaped.
 * @return {string} the escaped key.
 */

function escape(key) {
  var escapeRegex = /[=:]/g;
  var escaperLookup = {
    '=': '=0',
    ':': '=2'
  };
  var escapedString = ('' + key).replace(escapeRegex, function (match) {
    return escaperLookup[match];
  });

  return '$' + escapedString;
}

/**
 * Unescape and unwrap key for human-readable display
 *
 * @param {string} key to unescape.
 * @return {string} the unescaped key.
 */
function unescape(key) {
  var unescapeRegex = /(=0|=2)/g;
  var unescaperLookup = {
    '=0': '=',
    '=2': ':'
  };
  var keySubstring = key[0] === '.' && key[1] === '$' ? key.substring(2) : key.substring(1);

  return ('' + keySubstring).replace(unescapeRegex, function (match) {
    return unescaperLookup[match];
  });
}

var KeyEscapeUtils$1 = {
  escape: escape,
  unescape: unescape
};

var KeyEscapeUtils_1 = KeyEscapeUtils$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactFeatureFlags
 *
 */

var ReactFeatureFlags$1 = {
  // When true, call console.time() before and .timeEnd() after each top-level
  // render (both initial renders and updates). Useful when looking at prod-mode
  // timeline profiles in Chrome, for example.
  logTopLevelRenders: false,
  prepareNewChildrenBeforeUnmountInStack: true,
  disableNewFiberFeatures: false
};

var ReactFeatureFlags_1 = ReactFeatureFlags$1;

var React$4 = React;

var invariant$19 = invariant;

var ReactNodeTypes$1 = {
  HOST: 0,
  COMPOSITE: 1,
  EMPTY: 2,

  getType: function (node) {
    if (node === null || node === false) {
      return ReactNodeTypes$1.EMPTY;
    } else if (React$4.isValidElement(node)) {
      if (typeof node.type === 'function') {
        return ReactNodeTypes$1.COMPOSITE;
      } else {
        return ReactNodeTypes$1.HOST;
      }
    }
    invariant$19(false, 'Unexpected node: %s', node);
  }
};

var ReactNodeTypes_1 = ReactNodeTypes$1;

var ReactPropTypesSecret$2 = ReactPropTypesSecret_1;

var invariant$20 = invariant;
var warning$20 = warning;

var loggedTypeFailures$1 = {};

/**
 * Assert that the values match with the type specs.
 * Error messages are memorized and will only be shown once.
 *
 * @param {object} typeSpecs Map of name to a ReactPropType
 * @param {object} values Runtime values that need to be type-checked
 * @param {string} location e.g. "prop", "context", "child context"
 * @param {string} componentName Name of the component for error messages.
 * @param {?Function} getStack Returns the component stack.
 * @private
 */
function checkPropTypes$1(typeSpecs, values, location, componentName, getStack) {
  if (__DEV__) {
    for (var typeSpecName in typeSpecs) {
      if (typeSpecs.hasOwnProperty(typeSpecName)) {
        var error;
        // Prop type validation may throw. In case they do, we don't want to
        // fail the render phase where it didn't fail before. So we log it.
        // After these have been cleaned up, we'll let them throw.
        try {
          // This is intentionally an invariant that gets caught. It's the same
          // behavior as without this statement except with a better message.
          invariant$20(typeof typeSpecs[typeSpecName] === 'function', '%s: %s type `%s` is invalid; it must be a function, usually from ' + 'React.PropTypes.', componentName || 'React class', location, typeSpecName);
          error = typeSpecs[typeSpecName](values, typeSpecName, componentName, location, null, ReactPropTypesSecret$2);
        } catch (ex) {
          error = ex;
        }
        warning$20(!error || error instanceof Error, '%s: type specification of %s `%s` is invalid; the type checker ' + 'function must return `null` or an `Error` but returned a %s. ' + 'You may have forgotten to pass an argument to the type checker ' + 'creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and ' + 'shape all require an argument).', componentName || 'React class', location, typeSpecName, typeof error);
        if (error instanceof Error && !(error.message in loggedTypeFailures$1)) {
          // Only monitor this failure once because there tends to be a lot of the
          // same error.
          loggedTypeFailures$1[error.message] = true;

          var stack = getStack ? getStack() : '';

          warning$20(false, 'Failed %s type: %s%s', location, error.message, stack != null ? stack : '');
        }
      }
    }
  }
}

var checkPropTypes_1 = checkPropTypes$1;

var ReactDebugCurrentFrame$1 = {};

if (__DEV__) {
  var _require$6 = ReactComponentTreeHook_1,
      getStackAddendumByID = _require$6.getStackAddendumByID,
      getStackAddendumByWorkInProgressFiber$1 = _require$6.getStackAddendumByWorkInProgressFiber,
      getCurrentStackAddendum = _require$6.getCurrentStackAddendum;

  // Component that is being worked on


  ReactDebugCurrentFrame$1.current = null;

  // Element that is being cloned or created
  ReactDebugCurrentFrame$1.element = null;

  ReactDebugCurrentFrame$1.getStackAddendum = function () {
    var stack = null;
    var current = ReactDebugCurrentFrame$1.current;
    var element = ReactDebugCurrentFrame$1.element;
    if (current !== null) {
      if (typeof current === 'number') {
        // DebugID from Stack.
        var debugID = current;
        stack = getStackAddendumByID(debugID);
      } else if (typeof current.tag === 'number') {
        // This is a Fiber.
        // The stack will only be correct if this is a work in progress
        // version and we're calling it during reconciliation.
        var workInProgress = current;
        stack = getStackAddendumByWorkInProgressFiber$1(workInProgress);
      }
    } else if (element !== null) {
      stack = getCurrentStackAddendum(element);
    }
    return stack;
  };
}

var ReactDebugCurrentFrame_1 = ReactDebugCurrentFrame$1;

var checkPropTypes = checkPropTypes_1;

var _require$5 = ReactDebugCurrentFrame_1;
var getStackAddendum = _require$5.getStackAddendum;

function checkReactTypeSpec$1(typeSpecs, values, location, componentName) {
  checkPropTypes(typeSpecs, values, location, componentName, getStackAddendum);
}

var checkReactTypeSpec_1 = checkReactTypeSpec$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule shouldUpdateReactComponent
 */

/**
 * Given a `prevElement` and `nextElement`, determines if the existing
 * instance should be updated as opposed to being destroyed or replaced by a new
 * instance. Both arguments are elements. This ensures that this logic can
 * operate on stateless trees without any backing instance.
 *
 * @param {?object} prevElement
 * @param {?object} nextElement
 * @return {boolean} True if the existing instance should be updated.
 * @protected
 */

function shouldUpdateReactComponent$2(prevElement, nextElement) {
  var prevEmpty = prevElement === null || prevElement === false;
  var nextEmpty = nextElement === null || nextElement === false;
  if (prevEmpty || nextEmpty) {
    return prevEmpty === nextEmpty;
  }

  var prevType = typeof prevElement;
  var nextType = typeof nextElement;
  if (prevType === 'string' || prevType === 'number') {
    return nextType === 'string' || nextType === 'number';
  } else {
    return nextType === 'object' && prevElement.type === nextElement.type && prevElement.key === nextElement.key;
  }
}

var shouldUpdateReactComponent_1 = shouldUpdateReactComponent$2;

var React$3 = React;
var ReactComponentEnvironment$3 = ReactComponentEnvironment_1;
var ReactCompositeComponentTypes$3 = ReactCompositeComponentTypes$1;
var ReactCurrentOwner$3 = ReactCurrentOwner_1;
var ReactErrorUtils$3 = ReactErrorUtils_1;
var ReactFeatureFlags$2 = ReactFeatureFlags_1;
var ReactInstanceMap$2 = ReactInstanceMap_1;
var ReactInstrumentation$8 = ReactInstrumentation$2;
var ReactNodeTypes = ReactNodeTypes_1;
var ReactReconciler$4 = ReactReconciler_1;

if (__DEV__) {
  var checkReactTypeSpec = checkReactTypeSpec_1;
  var ReactDebugCurrentFrame = ReactDebugCurrentFrame_1;
  var warningAboutMissingGetChildContext = {};
}

var emptyObject$2 = emptyObject;
var invariant$18 = invariant;
var shallowEqual$2 = shallowEqual;
var shouldUpdateReactComponent$1 = shouldUpdateReactComponent_1;
var warning$19 = warning;

function StatelessComponent(Component) {}
StatelessComponent.prototype.render = function () {
  var Component = ReactInstanceMap$2.get(this)._currentElement.type;
  var element = Component(this.props, this.context, this.updater);
  return element;
};

function shouldConstruct(Component) {
  return !!(Component.prototype && Component.prototype.isReactComponent);
}

function isPureComponent(Component) {
  return !!(Component.prototype && Component.prototype.isPureReactComponent);
}

// Separated into a function to contain deoptimizations caused by try/finally.
function measureLifeCyclePerf(fn, debugID, timerType) {
  if (debugID === 0) {
    // Top-level wrappers (see ReactMount) and empty components (see
    // ReactDOMEmptyComponent) are invisible to hooks and devtools.
    // Both are implementation details that should go away in the future.
    return fn();
  }

  ReactInstrumentation$8.debugTool.onBeginLifeCycleTimer(debugID, timerType);
  try {
    return fn();
  } finally {
    ReactInstrumentation$8.debugTool.onEndLifeCycleTimer(debugID, timerType);
  }
}

/**
 * ------------------ The Life-Cycle of a Composite Component ------------------
 *
 * - constructor: Initialization of state. The instance is now retained.
 *   - componentWillMount
 *   - render
 *   - [children's constructors]
 *     - [children's componentWillMount and render]
 *     - [children's componentDidMount]
 *     - componentDidMount
 *
 *       Update Phases:
 *       - componentWillReceiveProps (only called if parent updated)
 *       - shouldComponentUpdate
 *         - componentWillUpdate
 *           - render
 *           - [children's constructors or receive props phases]
 *         - componentDidUpdate
 *
 *     - componentWillUnmount
 *     - [children's componentWillUnmount]
 *   - [children destroyed]
 * - (destroyed): The instance is now blank, released by React and ready for GC.
 *
 * -----------------------------------------------------------------------------
 */

/**
 * An incrementing ID assigned to each component when it is mounted. This is
 * used to enforce the order in which `ReactUpdates` updates dirty components.
 *
 * @private
 */
var nextMountID = 1;

/**
 * @lends {ReactCompositeComponent.prototype}
 */
var ReactCompositeComponent$1 = {

  /**
   * Base constructor for all composite component.
   *
   * @param {ReactElement} element
   * @final
   * @internal
   */
  construct: function (element) {
    this._currentElement = element;
    this._rootNodeID = 0;
    this._compositeType = null;
    this._instance = null;
    this._hostParent = null;
    this._hostContainerInfo = null;

    // See ReactUpdateQueue
    this._updateBatchNumber = null;
    this._pendingElement = null;
    this._pendingStateQueue = null;
    this._pendingReplaceState = false;
    this._pendingForceUpdate = false;

    this._renderedNodeType = null;
    this._renderedComponent = null;
    this._context = null;
    this._mountOrder = 0;
    this._topLevelWrapper = null;

    // See ReactUpdates and ReactUpdateQueue.
    this._pendingCallbacks = null;

    // ComponentWillUnmount shall only be called once
    this._calledComponentWillUnmount = false;

    if (__DEV__) {
      this._warnedAboutRefsInRender = false;
    }
  },

  /**
   * Initializes the component, renders markup, and registers event listeners.
   *
   * @param {ReactReconcileTransaction|ReactServerRenderingTransaction} transaction
   * @param {?object} hostParent
   * @param {?object} hostContainerInfo
   * @param {?object} context
   * @return {?string} Rendered markup to be inserted into the DOM.
   * @final
   * @internal
   */
  mountComponent: function (transaction, hostParent, hostContainerInfo, context) {
    var _this = this;

    this._context = context;
    this._mountOrder = nextMountID++;
    this._hostParent = hostParent;
    this._hostContainerInfo = hostContainerInfo;

    var publicProps = this._currentElement.props;
    var publicContext = this._processContext(context);

    var Component = this._currentElement.type;

    var updateQueue = transaction.getUpdateQueue();

    // Initialize the public class
    var doConstruct = shouldConstruct(Component);
    var inst = this._constructComponent(doConstruct, publicProps, publicContext, updateQueue);
    var renderedElement;

    // Support functional components
    if (!doConstruct && (inst == null || inst.render == null)) {
      renderedElement = inst;
      if (__DEV__) {
        warning$19(!Component.childContextTypes, '%s(...): childContextTypes cannot be defined on a functional component.', Component.displayName || Component.name || 'Component');
      }
      invariant$18(inst === null || inst === false || React$3.isValidElement(inst), '%s(...): A valid React element (or null) must be returned. You may have ' + 'returned undefined, an array or some other invalid object.', Component.displayName || Component.name || 'Component');
      inst = new StatelessComponent(Component);
      this._compositeType = ReactCompositeComponentTypes$3.StatelessFunctional;
    } else {
      if (isPureComponent(Component)) {
        this._compositeType = ReactCompositeComponentTypes$3.PureClass;
      } else {
        this._compositeType = ReactCompositeComponentTypes$3.ImpureClass;
      }
    }

    if (__DEV__) {
      // This will throw later in _renderValidatedComponent, but add an early
      // warning now to help debugging
      if (inst.render == null) {
        warning$19(false, '%s(...): No `render` method found on the returned component ' + 'instance: you may have forgotten to define `render`.', Component.displayName || Component.name || 'Component');
      }

      var propsMutated = inst.props !== publicProps;
      var componentName = Component.displayName || Component.name || 'Component';

      warning$19(inst.props === undefined || !propsMutated, '%s(...): When calling super() in `%s`, make sure to pass ' + 'up the same props that your component\'s constructor was passed.', componentName, componentName);
    }

    // These should be set up in the constructor, but as a convenience for
    // simpler class abstractions, we set them up after the fact.
    inst.props = publicProps;
    inst.context = publicContext;
    inst.refs = emptyObject$2;
    inst.updater = updateQueue;

    this._instance = inst;

    // Store a reference from the instance back to the internal representation
    ReactInstanceMap$2.set(inst, this);

    if (__DEV__) {
      // Since plain JS classes are defined without any special initialization
      // logic, we can not catch common errors early. Therefore, we have to
      // catch them here, at initialization time, instead.
      warning$19(!inst.getInitialState || inst.getInitialState.isReactClassApproved || inst.state, 'getInitialState was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Did you mean to define a state property instead?', this.getName() || 'a component');
      warning$19(!inst.getDefaultProps || inst.getDefaultProps.isReactClassApproved, 'getDefaultProps was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Use a static property to define defaultProps instead.', this.getName() || 'a component');
      warning$19(!inst.propTypes, 'propTypes was defined as an instance property on %s. Use a static ' + 'property to define propTypes instead.', this.getName() || 'a component');
      warning$19(!inst.contextTypes, 'contextTypes was defined as an instance property on %s. Use a ' + 'static property to define contextTypes instead.', this.getName() || 'a component');
      warning$19(typeof inst.componentShouldUpdate !== 'function', '%s has a method called ' + 'componentShouldUpdate(). Did you mean shouldComponentUpdate()? ' + 'The name is phrased as a question because the function is ' + 'expected to return a value.', this.getName() || 'A component');
      warning$19(typeof inst.componentDidUnmount !== 'function', '%s has a method called ' + 'componentDidUnmount(). But there is no such lifecycle method. ' + 'Did you mean componentWillUnmount()?', this.getName() || 'A component');
      warning$19(typeof inst.componentWillRecieveProps !== 'function', '%s has a method called ' + 'componentWillRecieveProps(). Did you mean componentWillReceiveProps()?', this.getName() || 'A component');
    }

    var initialState = inst.state;
    if (initialState === undefined) {
      inst.state = initialState = null;
    }
    invariant$18(typeof initialState === 'object' && !Array.isArray(initialState), '%s.state: must be set to an object or null', this.getName() || 'ReactCompositeComponent');

    this._pendingStateQueue = null;
    this._pendingReplaceState = false;
    this._pendingForceUpdate = false;

    if (inst.componentWillMount) {
      if (__DEV__) {
        measureLifeCyclePerf(function () {
          return inst.componentWillMount();
        }, this._debugID, 'componentWillMount');
      } else {
        inst.componentWillMount();
      }
      // When mounting, calls to `setState` by `componentWillMount` will set
      // `this._pendingStateQueue` without triggering a re-render.
      if (this._pendingStateQueue) {
        inst.state = this._processPendingState(inst.props, inst.context);
      }
    }

    var markup;
    if (inst.unstable_handleError) {
      markup = this.performInitialMountWithErrorHandling(renderedElement, hostParent, hostContainerInfo, transaction, context);
    } else {
      markup = this.performInitialMount(renderedElement, hostParent, hostContainerInfo, transaction, context);
    }

    if (inst.componentDidMount) {
      if (__DEV__) {
        transaction.getReactMountReady().enqueue(function () {
          measureLifeCyclePerf(function () {
            return inst.componentDidMount();
          }, _this._debugID, 'componentDidMount');
        });
      } else {
        transaction.getReactMountReady().enqueue(inst.componentDidMount, inst);
      }
    }

    // setState callbacks during willMount should end up here
    var callbacks = this._pendingCallbacks;
    if (callbacks) {
      this._pendingCallbacks = null;
      for (var i = 0; i < callbacks.length; i++) {
        transaction.getReactMountReady().enqueue(callbacks[i], inst);
      }
    }

    return markup;
  },

  _constructComponent: function (doConstruct, publicProps, publicContext, updateQueue) {
    if (__DEV__) {
      ReactCurrentOwner$3.current = this;
      try {
        return this._constructComponentWithoutOwner(doConstruct, publicProps, publicContext, updateQueue);
      } finally {
        ReactCurrentOwner$3.current = null;
      }
    } else {
      return this._constructComponentWithoutOwner(doConstruct, publicProps, publicContext, updateQueue);
    }
  },

  _constructComponentWithoutOwner: function (doConstruct, publicProps, publicContext, updateQueue) {
    var Component = this._currentElement.type;

    if (doConstruct) {
      if (__DEV__) {
        return measureLifeCyclePerf(function () {
          return new Component(publicProps, publicContext, updateQueue);
        }, this._debugID, 'ctor');
      } else {
        return new Component(publicProps, publicContext, updateQueue);
      }
    }

    // This can still be an instance in case of factory components
    // but we'll count this as time spent rendering as the more common case.
    if (__DEV__) {
      return measureLifeCyclePerf(function () {
        return Component(publicProps, publicContext, updateQueue);
      }, this._debugID, 'render');
    } else {
      return Component(publicProps, publicContext, updateQueue);
    }
  },

  performInitialMountWithErrorHandling: function (renderedElement, hostParent, hostContainerInfo, transaction, context) {
    var markup;
    var checkpoint = transaction.checkpoint();
    try {
      markup = this.performInitialMount(renderedElement, hostParent, hostContainerInfo, transaction, context);
    } catch (e) {
      // Roll back to checkpoint, handle error (which may add items to the transaction), and take a new checkpoint
      transaction.rollback(checkpoint);
      this._instance.unstable_handleError(e);
      if (this._pendingStateQueue) {
        this._instance.state = this._processPendingState(this._instance.props, this._instance.context);
      }
      checkpoint = transaction.checkpoint();
      this._renderedComponent.unmountComponent(true, /* safely */
      // Don't call componentWillUnmount() because they never fully mounted:
      true /* skipLifecyle */
      );
      transaction.rollback(checkpoint);

      // Try again - we've informed the component about the error, so they can render an error message this time.
      // If this throws again, the error will bubble up (and can be caught by a higher error boundary).
      markup = this.performInitialMount(renderedElement, hostParent, hostContainerInfo, transaction, context);
    }
    return markup;
  },

  performInitialMount: function (renderedElement, hostParent, hostContainerInfo, transaction, context) {
    // If not a stateless component, we now render
    if (renderedElement === undefined) {
      renderedElement = this._renderValidatedComponent();
    }

    var nodeType = ReactNodeTypes.getType(renderedElement);
    this._renderedNodeType = nodeType;
    var child = this._instantiateReactComponent(renderedElement, nodeType !== ReactNodeTypes.EMPTY /* shouldHaveDebugID */
    );
    this._renderedComponent = child;

    var debugID = 0;
    if (__DEV__) {
      debugID = this._debugID;
    }

    var markup = ReactReconciler$4.mountComponent(child, transaction, hostParent, hostContainerInfo, this._processChildContext(context), debugID);

    if (__DEV__) {
      if (debugID !== 0) {
        var childDebugIDs = child._debugID !== 0 ? [child._debugID] : [];
        ReactInstrumentation$8.debugTool.onSetChildren(debugID, childDebugIDs);
      }
    }

    return markup;
  },

  getHostNode: function () {
    return ReactReconciler$4.getHostNode(this._renderedComponent);
  },

  /**
   * Releases any resources allocated by `mountComponent`.
   *
   * @final
   * @internal
   */
  unmountComponent: function (safely, skipLifecycle) {
    if (!this._renderedComponent) {
      return;
    }

    var inst = this._instance;

    if (inst.componentWillUnmount && !inst._calledComponentWillUnmount) {
      inst._calledComponentWillUnmount = true;

      if (safely) {
        if (!skipLifecycle) {
          var name = this.getName() + '.componentWillUnmount()';
          ReactErrorUtils$3.invokeGuardedCallbackAndCatchFirstError(name, inst.componentWillUnmount, inst);
        }
      } else {
        if (__DEV__) {
          measureLifeCyclePerf(function () {
            return inst.componentWillUnmount();
          }, this._debugID, 'componentWillUnmount');
        } else {
          inst.componentWillUnmount();
        }
      }
    }

    if (this._renderedComponent) {
      ReactReconciler$4.unmountComponent(this._renderedComponent, safely, skipLifecycle);
      this._renderedNodeType = null;
      this._renderedComponent = null;
      this._instance = null;
    }

    // Reset pending fields
    // Even if this component is scheduled for another update in ReactUpdates,
    // it would still be ignored because these fields are reset.
    this._pendingStateQueue = null;
    this._pendingReplaceState = false;
    this._pendingForceUpdate = false;
    this._pendingCallbacks = null;
    this._pendingElement = null;

    // These fields do not really need to be reset since this object is no
    // longer accessible.
    this._context = null;
    this._rootNodeID = 0;
    this._topLevelWrapper = null;

    // Delete the reference from the instance to this internal representation
    // which allow the internals to be properly cleaned up even if the user
    // leaks a reference to the public instance.
    ReactInstanceMap$2.remove(inst);

    // Some existing components rely on inst.props even after they've been
    // destroyed (in event handlers).
    // TODO: inst.props = null;
    // TODO: inst.state = null;
    // TODO: inst.context = null;
  },

  /**
   * Filters the context object to only contain keys specified in
   * `contextTypes`
   *
   * @param {object} context
   * @return {?object}
   * @private
   */
  _maskContext: function (context) {
    var Component = this._currentElement.type;
    var contextTypes = Component.contextTypes;
    if (!contextTypes) {
      return emptyObject$2;
    }
    var maskedContext = {};
    for (var contextName in contextTypes) {
      maskedContext[contextName] = context[contextName];
    }
    return maskedContext;
  },

  /**
   * Filters the context object to only contain keys specified in
   * `contextTypes`, and asserts that they are valid.
   *
   * @param {object} context
   * @return {?object}
   * @private
   */
  _processContext: function (context) {
    var maskedContext = this._maskContext(context);
    if (__DEV__) {
      var Component = this._currentElement.type;
      if (Component.contextTypes) {
        this._checkContextTypes(Component.contextTypes, maskedContext, 'context');
      }
    }
    return maskedContext;
  },

  /**
   * @param {object} currentContext
   * @return {object}
   * @private
   */
  _processChildContext: function (currentContext) {
    var Component = this._currentElement.type;
    var inst = this._instance;
    var childContext;

    if (typeof inst.getChildContext === 'function') {
      if (__DEV__) {
        ReactInstrumentation$8.debugTool.onBeginProcessingChildContext();
        try {
          childContext = inst.getChildContext();
        } finally {
          ReactInstrumentation$8.debugTool.onEndProcessingChildContext();
        }
      } else {
        childContext = inst.getChildContext();
      }

      invariant$18(typeof Component.childContextTypes === 'object', '%s.getChildContext(): childContextTypes must be defined in order to ' + 'use getChildContext().', this.getName() || 'ReactCompositeComponent');
      if (__DEV__) {
        this._checkContextTypes(Component.childContextTypes, childContext, 'child context');
      }
      for (var name in childContext) {
        invariant$18(name in Component.childContextTypes, '%s.getChildContext(): key "%s" is not defined in childContextTypes.', this.getName() || 'ReactCompositeComponent', name);
      }
      return Object.assign({}, currentContext, childContext);
    } else {
      if (__DEV__) {
        var componentName = this.getName();

        if (!warningAboutMissingGetChildContext[componentName]) {
          warningAboutMissingGetChildContext[componentName] = true;
          warning$19(!Component.childContextTypes, '%s.childContextTypes is specified but there is no getChildContext() method ' + 'on the instance. You can either define getChildContext() on %s or remove ' + 'childContextTypes from it.', componentName, componentName);
        }
      }
    }
    return currentContext;
  },

  /**
   * Assert that the context types are valid
   *
   * @param {object} typeSpecs Map of context field to a ReactPropType
   * @param {object} values Runtime values that need to be type-checked
   * @param {string} location e.g. "prop", "context", "child context"
   * @private
   */
  _checkContextTypes: function (typeSpecs, values, location) {
    if (__DEV__) {
      ReactDebugCurrentFrame.current = this._debugID;
      checkReactTypeSpec(typeSpecs, values, location, this.getName());
      ReactDebugCurrentFrame.current = null;
    }
  },

  receiveComponent: function (nextElement, transaction, nextContext) {
    var prevElement = this._currentElement;
    var prevContext = this._context;

    this._pendingElement = null;

    this.updateComponent(transaction, prevElement, nextElement, prevContext, nextContext);
  },

  /**
   * If any of `_pendingElement`, `_pendingStateQueue`, or `_pendingForceUpdate`
   * is set, update the component.
   *
   * @param {ReactReconcileTransaction} transaction
   * @internal
   */
  performUpdateIfNecessary: function (transaction) {
    if (this._pendingElement != null) {
      ReactReconciler$4.receiveComponent(this, this._pendingElement, transaction, this._context);
    } else if (this._pendingStateQueue !== null || this._pendingForceUpdate) {
      this.updateComponent(transaction, this._currentElement, this._currentElement, this._context, this._context);
    } else {
      var callbacks = this._pendingCallbacks;
      this._pendingCallbacks = null;
      if (callbacks) {
        for (var j = 0; j < callbacks.length; j++) {
          transaction.getReactMountReady().enqueue(callbacks[j], this.getPublicInstance());
        }
      }
      this._updateBatchNumber = null;
    }
  },

  /**
   * Perform an update to a mounted component. The componentWillReceiveProps and
   * shouldComponentUpdate methods are called, then (assuming the update isn't
   * skipped) the remaining update lifecycle methods are called and the DOM
   * representation is updated.
   *
   * By default, this implements React's rendering and reconciliation algorithm.
   * Sophisticated clients may wish to override this.
   *
   * @param {ReactReconcileTransaction} transaction
   * @param {ReactElement} prevParentElement
   * @param {ReactElement} nextParentElement
   * @internal
   * @overridable
   */
  updateComponent: function (transaction, prevParentElement, nextParentElement, prevUnmaskedContext, nextUnmaskedContext) {
    var inst = this._instance;
    invariant$18(inst != null, 'Attempted to update component `%s` that has already been unmounted ' + '(or failed to mount).', this.getName() || 'ReactCompositeComponent');

    var willReceive = false;
    var nextContext;

    // Determine if the context has changed or not
    if (this._context === nextUnmaskedContext) {
      nextContext = inst.context;
    } else {
      nextContext = this._processContext(nextUnmaskedContext);
      willReceive = true;
    }

    var prevProps = prevParentElement.props;
    var nextProps = nextParentElement.props;

    // Not a simple state update but a props update
    if (prevParentElement !== nextParentElement) {
      willReceive = true;
    }

    // An update here will schedule an update but immediately set
    // _pendingStateQueue which will ensure that any state updates gets
    // immediately reconciled instead of waiting for the next batch.
    if (willReceive && inst.componentWillReceiveProps) {
      var beforeState = inst.state;
      if (__DEV__) {
        measureLifeCyclePerf(function () {
          return inst.componentWillReceiveProps(nextProps, nextContext);
        }, this._debugID, 'componentWillReceiveProps');
      } else {
        inst.componentWillReceiveProps(nextProps, nextContext);
      }
      var afterState = inst.state;
      if (beforeState !== afterState) {
        inst.state = beforeState;
        inst.updater.enqueueReplaceState(inst, afterState);
        if (__DEV__) {
          warning$19(false, '%s.componentWillReceiveProps(): Assigning directly to ' + 'this.state is deprecated (except inside a component\'s ' + 'constructor). Use setState instead.', this.getName() || 'ReactCompositeComponent');
        }
      }
    }

    // If updating happens to enqueue any new updates, we shouldn't execute new
    // callbacks until the next render happens, so stash the callbacks first.
    var callbacks = this._pendingCallbacks;
    this._pendingCallbacks = null;

    var nextState = this._processPendingState(nextProps, nextContext);
    var shouldUpdate = true;
    if (!this._pendingForceUpdate) {
      var prevState = inst.state;
      shouldUpdate = willReceive || nextState !== prevState;
      if (inst.shouldComponentUpdate) {
        if (__DEV__) {
          shouldUpdate = measureLifeCyclePerf(function () {
            return inst.shouldComponentUpdate(nextProps, nextState, nextContext);
          }, this._debugID, 'shouldComponentUpdate');
        } else {
          shouldUpdate = inst.shouldComponentUpdate(nextProps, nextState, nextContext);
        }
      } else {
        if (this._compositeType === ReactCompositeComponentTypes$3.PureClass) {
          shouldUpdate = !shallowEqual$2(prevProps, nextProps) || !shallowEqual$2(inst.state, nextState);
        }
      }
    }

    if (__DEV__) {
      warning$19(shouldUpdate !== undefined, '%s.shouldComponentUpdate(): Returned undefined instead of a ' + 'boolean value. Make sure to return true or false.', this.getName() || 'ReactCompositeComponent');
    }

    this._updateBatchNumber = null;
    if (shouldUpdate) {
      this._pendingForceUpdate = false;
      // Will set `this.props`, `this.state` and `this.context`.
      this._performComponentUpdate(nextParentElement, nextProps, nextState, nextContext, transaction, nextUnmaskedContext);
    } else {
      // If it's determined that a component should not update, we still want
      // to set props and state but we shortcut the rest of the update.
      this._currentElement = nextParentElement;
      this._context = nextUnmaskedContext;
      inst.props = nextProps;
      inst.state = nextState;
      inst.context = nextContext;
    }

    if (callbacks) {
      for (var j = 0; j < callbacks.length; j++) {
        transaction.getReactMountReady().enqueue(callbacks[j], this.getPublicInstance());
      }
    }
  },

  _processPendingState: function (props, context) {
    var inst = this._instance;
    var queue = this._pendingStateQueue;
    var replace = this._pendingReplaceState;
    this._pendingReplaceState = false;
    this._pendingStateQueue = null;

    if (!queue) {
      return inst.state;
    }

    if (replace && queue.length === 1) {
      return queue[0];
    }

    var nextState = replace ? queue[0] : inst.state;
    var dontMutate = true;
    for (var i = replace ? 1 : 0; i < queue.length; i++) {
      var partial = queue[i];
      var partialState = typeof partial === 'function' ? partial.call(inst, nextState, props, context) : partial;
      if (partialState) {
        if (dontMutate) {
          dontMutate = false;
          nextState = Object.assign({}, nextState, partialState);
        } else {
          Object.assign(nextState, partialState);
        }
      }
    }

    return nextState;
  },

  /**
   * Merges new props and state, notifies delegate methods of update and
   * performs update.
   *
   * @param {ReactElement} nextElement Next element
   * @param {object} nextProps Next public object to set as properties.
   * @param {?object} nextState Next object to set as state.
   * @param {?object} nextContext Next public object to set as context.
   * @param {ReactReconcileTransaction} transaction
   * @param {?object} unmaskedContext
   * @private
   */
  _performComponentUpdate: function (nextElement, nextProps, nextState, nextContext, transaction, unmaskedContext) {
    var _this2 = this;

    var inst = this._instance;

    var hasComponentDidUpdate = !!inst.componentDidUpdate;
    var prevProps;
    var prevState;
    var prevContext;
    if (hasComponentDidUpdate) {
      prevProps = inst.props;
      prevState = inst.state;
      prevContext = inst.context;
    }

    if (inst.componentWillUpdate) {
      if (__DEV__) {
        measureLifeCyclePerf(function () {
          return inst.componentWillUpdate(nextProps, nextState, nextContext);
        }, this._debugID, 'componentWillUpdate');
      } else {
        inst.componentWillUpdate(nextProps, nextState, nextContext);
      }
    }

    this._currentElement = nextElement;
    this._context = unmaskedContext;
    inst.props = nextProps;
    inst.state = nextState;
    inst.context = nextContext;

    if (inst.unstable_handleError) {
      this._updateRenderedComponentWithErrorHandling(transaction, unmaskedContext);
    } else {
      this._updateRenderedComponent(transaction, unmaskedContext);
    }

    if (hasComponentDidUpdate) {
      if (__DEV__) {
        transaction.getReactMountReady().enqueue(function () {
          measureLifeCyclePerf(inst.componentDidUpdate.bind(inst, prevProps, prevState, prevContext), _this2._debugID, 'componentDidUpdate');
        });
      } else {
        transaction.getReactMountReady().enqueue(inst.componentDidUpdate.bind(inst, prevProps, prevState, prevContext), inst);
      }
    }
  },

  /**
   * Call the component's `render` method and update the DOM accordingly.
   *
   * @param {ReactReconcileTransaction} transaction
   * @internal
   */
  _updateRenderedComponentWithErrorHandling: function (transaction, context) {
    var checkpoint = transaction.checkpoint();
    try {
      this._updateRenderedComponent(transaction, context);
    } catch (e) {
      // Roll back to checkpoint, handle error (which may add items to the transaction),
      // and take a new checkpoint
      transaction.rollback(checkpoint);
      this._instance.unstable_handleError(e);
      if (this._pendingStateQueue) {
        this._instance.state = this._processPendingState(this._instance.props, this._instance.context);
      }
      checkpoint = transaction.checkpoint();

      // Gracefully update to a clean state
      this._updateRenderedComponentWithNextElement(transaction, context, null, true /* safely */
      );

      // Try again - we've informed the component about the error, so they can render an error message this time.
      // If this throws again, the error will bubble up (and can be caught by a higher error boundary).
      this._updateRenderedComponent(transaction, context);
    }
  },

  /**
   * Call the component's `render` method and update the DOM accordingly.
   *
   * @param {ReactReconcileTransaction} transaction
   * @internal
   */
  _updateRenderedComponent: function (transaction, context) {
    var nextRenderedElement = this._renderValidatedComponent();
    this._updateRenderedComponentWithNextElement(transaction, context, nextRenderedElement, false /* safely */
    );
  },

  /**
   * Call the component's `render` method and update the DOM accordingly.
   *
   * @param {ReactReconcileTransaction} transaction
   * @internal
   */
  _updateRenderedComponentWithNextElement: function (transaction, context, nextRenderedElement, safely) {
    var prevComponentInstance = this._renderedComponent;
    var prevRenderedElement = prevComponentInstance._currentElement;

    var debugID = 0;
    if (__DEV__) {
      debugID = this._debugID;
    }

    if (shouldUpdateReactComponent$1(prevRenderedElement, nextRenderedElement)) {
      ReactReconciler$4.receiveComponent(prevComponentInstance, nextRenderedElement, transaction, this._processChildContext(context));
    } else {
      var oldHostNode = ReactReconciler$4.getHostNode(prevComponentInstance);

      if (!ReactFeatureFlags$2.prepareNewChildrenBeforeUnmountInStack) {
        ReactReconciler$4.unmountComponent(prevComponentInstance, safely, false /* skipLifecycle */
        );
      }

      var nodeType = ReactNodeTypes.getType(nextRenderedElement);
      this._renderedNodeType = nodeType;
      var child = this._instantiateReactComponent(nextRenderedElement, nodeType !== ReactNodeTypes.EMPTY /* shouldHaveDebugID */
      );
      this._renderedComponent = child;

      var nextMarkup = ReactReconciler$4.mountComponent(child, transaction, this._hostParent, this._hostContainerInfo, this._processChildContext(context), debugID);

      if (ReactFeatureFlags$2.prepareNewChildrenBeforeUnmountInStack) {
        ReactReconciler$4.unmountComponent(prevComponentInstance, safely, false /* skipLifecycle */
        );
      }

      if (__DEV__) {
        if (debugID !== 0) {
          var childDebugIDs = child._debugID !== 0 ? [child._debugID] : [];
          ReactInstrumentation$8.debugTool.onSetChildren(debugID, childDebugIDs);
        }
      }

      this._replaceNodeWithMarkup(oldHostNode, nextMarkup, prevComponentInstance);
    }
  },

  /**
   * Overridden in shallow rendering.
   *
   * @protected
   */
  _replaceNodeWithMarkup: function (oldHostNode, nextMarkup, prevInstance) {
    ReactComponentEnvironment$3.replaceNodeWithMarkup(oldHostNode, nextMarkup, prevInstance);
  },

  /**
   * @protected
   */
  _renderValidatedComponentWithoutOwnerOrContext: function () {
    var inst = this._instance;
    var renderedElement;

    if (__DEV__) {
      renderedElement = measureLifeCyclePerf(function () {
        return inst.render();
      }, this._debugID, 'render');
    } else {
      renderedElement = inst.render();
    }

    if (__DEV__) {
      // We allow auto-mocks to proceed as if they're returning null.
      if (renderedElement === undefined && inst.render._isMockFunction) {
        // This is probably bad practice. Consider warning here and
        // deprecating this convenience.
        renderedElement = null;
      }
    }

    return renderedElement;
  },

  /**
   * @private
   */
  _renderValidatedComponent: function () {
    var renderedElement;
    if (__DEV__ || this._compositeType !== ReactCompositeComponentTypes$3.StatelessFunctional) {
      ReactCurrentOwner$3.current = this;
      try {
        renderedElement = this._renderValidatedComponentWithoutOwnerOrContext();
      } finally {
        ReactCurrentOwner$3.current = null;
      }
    } else {
      renderedElement = this._renderValidatedComponentWithoutOwnerOrContext();
    }
    invariant$18(
    // TODO: An `isValidNode` function would probably be more appropriate
    renderedElement === null || renderedElement === false || React$3.isValidElement(renderedElement), '%s.render(): A valid React element (or null) must be returned. You may have ' + 'returned undefined, an array or some other invalid object.', this.getName() || 'ReactCompositeComponent');

    return renderedElement;
  },

  /**
   * Lazily allocates the refs object and stores `component` as `ref`.
   *
   * @param {string} ref Reference name.
   * @param {component} component Component to store as `ref`.
   * @final
   * @private
   */
  attachRef: function (ref, component) {
    var inst = this.getPublicInstance();
    invariant$18(inst != null, 'Stateless function components cannot have refs.');
    var publicComponentInstance = component.getPublicInstance();
    var refs = inst.refs === emptyObject$2 ? inst.refs = {} : inst.refs;
    refs[ref] = publicComponentInstance;
  },

  /**
   * Detaches a reference name.
   *
   * @param {string} ref Name to dereference.
   * @final
   * @private
   */
  detachRef: function (ref) {
    var refs = this.getPublicInstance().refs;
    delete refs[ref];
  },

  /**
   * Get a text description of the component that can be used to identify it
   * in error messages.
   * @return {string} The name or null.
   * @internal
   */
  getName: function () {
    var type = this._currentElement.type;
    var constructor = this._instance && this._instance.constructor;
    return type.displayName || constructor && constructor.displayName || type.name || constructor && constructor.name || null;
  },

  /**
   * Get the publicly accessible representation of this component - i.e. what
   * is exposed by refs and returned by render. Can be null for stateless
   * components.
   *
   * @return {ReactComponent} the public component instance.
   * @internal
   */
  getPublicInstance: function () {
    var inst = this._instance;
    if (this._compositeType === ReactCompositeComponentTypes$3.StatelessFunctional) {
      return null;
    }
    return inst;
  },

  // Stub
  _instantiateReactComponent: null

};

var ReactCompositeComponent_1 = ReactCompositeComponent$1;

/**
 * Copyright 2014-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactEmptyComponent
 */

var emptyComponentFactory;

var ReactEmptyComponentInjection = {
  injectEmptyComponentFactory: function (factory) {
    emptyComponentFactory = factory;
  }
};

var ReactEmptyComponent$2 = {
  create: function (instantiate) {
    return emptyComponentFactory(instantiate);
  }
};

ReactEmptyComponent$2.injection = ReactEmptyComponentInjection;

var ReactEmptyComponent_1 = ReactEmptyComponent$2;

var invariant$21 = invariant;

var genericComponentClass = null;
var textComponentClass = null;

var ReactHostComponentInjection = {
  // This accepts a class that receives the tag string. This is a catch all
  // that can render any kind of tag.
  injectGenericComponentClass: function (componentClass) {
    genericComponentClass = componentClass;
  },
  // This accepts a text component class that takes the text string to be
  // rendered as props.
  injectTextComponentClass: function (componentClass) {
    textComponentClass = componentClass;
  }
};

/**
 * Get a host internal component class for a specific tag.
 *
 * @param {ReactElement} element The element to create.
 * @return {function} The internal class constructor function.
 */
function createInternalComponent(element) {
  invariant$21(genericComponentClass, 'There is no registered component for the tag %s', element.type);
  return new genericComponentClass(element);
}

/**
 * @param {ReactText} text
 * @return {ReactComponent}
 */
function createInstanceForText(text) {
  return new textComponentClass(text);
}

/**
 * @param {ReactComponent} component
 * @return {boolean}
 */
function isTextComponent(component) {
  return component instanceof textComponentClass;
}

var ReactHostComponent$2 = {
  createInternalComponent: createInternalComponent,
  createInstanceForText: createInstanceForText,
  isTextComponent: isTextComponent,
  injection: ReactHostComponentInjection
};

var ReactHostComponent_1 = ReactHostComponent$2;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule getNextDebugID
 *
 */

var nextDebugID = 1;

function getNextDebugID$1() {
  return nextDebugID++;
}

var getNextDebugID_1 = getNextDebugID$1;

var ReactCompositeComponent = ReactCompositeComponent_1;
var ReactEmptyComponent$1 = ReactEmptyComponent_1;
var ReactHostComponent$1 = ReactHostComponent_1;

var getNextDebugID = getNextDebugID_1;
var invariant$17 = invariant;
var warning$18 = warning;

// To avoid a cyclic dependency, we create the final class in this module
var ReactCompositeComponentWrapper = function (element) {
  this.construct(element);
};

function getDeclarationErrorAddendum$3(owner) {
  if (owner) {
    var name = owner.getName();
    if (name) {
      return '\n\nCheck the render method of `' + name + '`.';
    }
  }
  return '';
}

/**
 * Check if the type reference is a known internal type. I.e. not a user
 * provided composite type.
 *
 * @param {function} type
 * @return {boolean} Returns true if this is a valid internal type.
 */
function isInternalComponentType(type) {
  return typeof type === 'function' && typeof type.prototype !== 'undefined' && typeof type.prototype.mountComponent === 'function' && typeof type.prototype.receiveComponent === 'function';
}

/**
 * Given a ReactNode, create an instance that will actually be mounted.
 *
 * @param {ReactNode} node
 * @param {boolean} shouldHaveDebugID
 * @return {object} A new instance of the element's constructor.
 * @protected
 */
function instantiateReactComponent$1(node, shouldHaveDebugID) {
  var instance;

  if (node === null || node === false) {
    instance = ReactEmptyComponent$1.create(instantiateReactComponent$1);
  } else if (typeof node === 'object') {
    var element = node;
    var type = element.type;
    if (typeof type !== 'function' && typeof type !== 'string') {
      var info = '';
      if (__DEV__) {
        if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
          info += ' You likely forgot to export your component from the file ' + 'it\'s defined in.';
        }
      }
      info += getDeclarationErrorAddendum$3(element._owner);
      invariant$17(false, 'Element type is invalid: expected a string (for built-in components) ' + 'or a class/function (for composite components) but got: %s.%s', type == null ? type : typeof type, info);
    }

    // Special case string values
    if (typeof element.type === 'string') {
      instance = ReactHostComponent$1.createInternalComponent(element);
    } else if (isInternalComponentType(element.type)) {
      // This is temporarily available for custom components that are not string
      // representations. I.e. ART. Once those are updated to use the string
      // representation, we can drop this code path.
      instance = new element.type(element);

      // We renamed this. Allow the old name for compat. :(
      if (!instance.getHostNode) {
        instance.getHostNode = instance.getNativeNode;
      }
    } else {
      instance = new ReactCompositeComponentWrapper(element);
    }
  } else if (typeof node === 'string' || typeof node === 'number') {
    instance = ReactHostComponent$1.createInstanceForText(node);
  } else {
    invariant$17(false, 'Encountered invalid React node of type %s', typeof node);
  }

  if (__DEV__) {
    warning$18(typeof instance.mountComponent === 'function' && typeof instance.receiveComponent === 'function' && typeof instance.getHostNode === 'function' && typeof instance.unmountComponent === 'function', 'Only React Components can be mounted.');
  }

  // These two fields are used by the DOM and ART diffing algorithms
  // respectively. Instead of using expandos on components, we should be
  // storing the state needed by the diffing algorithms elsewhere.
  instance._mountIndex = 0;
  instance._mountImage = null;

  if (__DEV__) {
    instance._debugID = shouldHaveDebugID ? getNextDebugID() : 0;
  }

  // Internal instances should fully constructed at this point, so they should
  // not get any new fields added to them at this point.
  if (__DEV__) {
    if (Object.preventExtensions) {
      Object.preventExtensions(instance);
    }
  }

  return instance;
}

Object.assign(ReactCompositeComponentWrapper.prototype, ReactCompositeComponent, {
  _instantiateReactComponent: instantiateReactComponent$1
});

var instantiateReactComponent_1 = instantiateReactComponent$1;

/**
 * Copyright 2014-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactElementSymbol
 *
 */

// The Symbol used to tag the ReactElement type. If there is no native Symbol
// nor polyfill, then a plain number is used for performance.

var REACT_ELEMENT_TYPE$1 = typeof Symbol === 'function' && Symbol['for'] && Symbol['for']('react.element') || 0xeac7;

var ReactElementSymbol = REACT_ELEMENT_TYPE$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule getIteratorFn
 *
 */

/* global Symbol */

var ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
var FAUX_ITERATOR_SYMBOL = '@@iterator'; // Before Symbol spec.

/**
 * Returns the iterator method function contained on the iterable object.
 *
 * Be sure to invoke the function with the iterable as context:
 *
 *     var iteratorFn = getIteratorFn(myIterable);
 *     if (iteratorFn) {
 *       var iterator = iteratorFn.call(myIterable);
 *       ...
 *     }
 *
 * @param {?object} maybeIterable
 * @return {?function}
 */
function getIteratorFn$1(maybeIterable) {
  var iteratorFn = maybeIterable && (ITERATOR_SYMBOL && maybeIterable[ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL]);
  if (typeof iteratorFn === 'function') {
    return iteratorFn;
  }
}

var getIteratorFn_1 = getIteratorFn$1;

var ReactCurrentOwner$4 = ReactCurrentOwner_1;
var REACT_ELEMENT_TYPE = ReactElementSymbol;

var getIteratorFn = getIteratorFn_1;
var invariant$22 = invariant;
var KeyEscapeUtils$2 = KeyEscapeUtils_1;
var warning$21 = warning;

var SEPARATOR = '.';
var SUBSEPARATOR = ':';

/**
 * This is inlined from ReactElement since this file is shared between
 * isomorphic and renderers. We could extract this to a
 *
 */

/**
 * TODO: Test that a single child and an array with one item have the same key
 * pattern.
 */

var didWarnAboutMaps = false;

/**
 * Generate a key string that identifies a component within a set.
 *
 * @param {*} component A component that could contain a manual key.
 * @param {number} index Index that is used if a manual key is not provided.
 * @return {string}
 */
function getComponentKey(component, index) {
  // Do some typechecking here since we call this blindly. We want to ensure
  // that we don't block potential future ES APIs.
  if (component && typeof component === 'object' && component.key != null) {
    // Explicit key
    return KeyEscapeUtils$2.escape(component.key);
  }
  // Implicit key determined by the index in the set
  return index.toString(36);
}

/**
 * @param {?*} children Children tree container.
 * @param {!string} nameSoFar Name of the key path so far.
 * @param {!function} callback Callback to invoke with each child found.
 * @param {?*} traverseContext Used to pass information throughout the traversal
 * process.
 * @return {!number} The number of children in this subtree.
 */
function traverseAllChildrenImpl(children, nameSoFar, callback, traverseContext) {
  var type = typeof children;

  if (type === 'undefined' || type === 'boolean') {
    // All of the above are perceived as null.
    children = null;
  }

  if (children === null || type === 'string' || type === 'number' ||
  // The following is inlined from ReactElement. This means we can optimize
  // some checks. React Fiber also inlines this logic for similar purposes.
  type === 'object' && children.$$typeof === REACT_ELEMENT_TYPE) {
    callback(traverseContext, children,
    // If it's the only child, treat the name as if it was wrapped in an array
    // so that it's consistent if the number of children grows.
    nameSoFar === '' ? SEPARATOR + getComponentKey(children, 0) : nameSoFar);
    return 1;
  }

  var child;
  var nextName;
  var subtreeCount = 0; // Count of children found in the current subtree.
  var nextNamePrefix = nameSoFar === '' ? SEPARATOR : nameSoFar + SUBSEPARATOR;

  if (Array.isArray(children)) {
    for (var i = 0; i < children.length; i++) {
      child = children[i];
      nextName = nextNamePrefix + getComponentKey(child, i);
      subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext);
    }
  } else {
    var iteratorFn = getIteratorFn(children);
    if (iteratorFn) {
      if (__DEV__) {
        // Warn about using Maps as children
        if (iteratorFn === children.entries) {
          var mapsAsChildrenAddendum = '';
          if (ReactCurrentOwner$4.current) {
            var mapsAsChildrenOwnerName = ReactCurrentOwner$4.current.getName();
            if (mapsAsChildrenOwnerName) {
              mapsAsChildrenAddendum = '\n\nCheck the render method of `' + mapsAsChildrenOwnerName + '`.';
            }
          }
          warning$21(didWarnAboutMaps, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.%s', mapsAsChildrenAddendum);
          didWarnAboutMaps = true;
        }
      }

      var iterator = iteratorFn.call(children);
      var step;
      var ii = 0;
      while (!(step = iterator.next()).done) {
        child = step.value;
        nextName = nextNamePrefix + getComponentKey(child, ii++);
        subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext);
      }
    } else if (type === 'object') {
      var addendum = '';
      if (__DEV__) {
        addendum = ' If you meant to render a collection of children, use an array ' + 'instead or wrap the object using createFragment(object) from the ' + 'React add-ons.';
        if (ReactCurrentOwner$4.current) {
          var name = ReactCurrentOwner$4.current.getName();
          if (name) {
            addendum += '\n\nCheck the render method of `' + name + '`.';
          }
        }
      }
      var childrenString = '' + children;
      invariant$22(false, 'Objects are not valid as a React child (found: %s).%s', childrenString === '[object Object]' ? 'object with keys {' + Object.keys(children).join(', ') + '}' : childrenString, addendum);
    }
  }

  return subtreeCount;
}

/**
 * Traverses children that are typically specified as `props.children`, but
 * might also be specified through attributes:
 *
 * - `traverseAllChildren(this.props.children, ...)`
 * - `traverseAllChildren(this.props.leftPanelChildren, ...)`
 *
 * The `traverseContext` is an optional argument that is passed through the
 * entire traversal. It can be used to store accumulations or anything else that
 * the callback might find relevant.
 *
 * @param {?*} children Children tree object.
 * @param {!function} callback To invoke upon traversing each child.
 * @param {?*} traverseContext Context for traversal.
 * @return {!number} The number of children in this subtree.
 */
function traverseAllChildren$1(children, callback, traverseContext) {
  if (children == null) {
    return 0;
  }

  return traverseAllChildrenImpl(children, '', callback, traverseContext);
}

var traverseAllChildren_1 = traverseAllChildren$1;

var KeyEscapeUtils = KeyEscapeUtils_1;
var ReactFeatureFlags = ReactFeatureFlags_1;
var ReactReconciler$3 = ReactReconciler_1;

var instantiateReactComponent = instantiateReactComponent_1;
var shouldUpdateReactComponent = shouldUpdateReactComponent_1;
var traverseAllChildren = traverseAllChildren_1;
var warning$17 = warning;

var ReactComponentTreeHook$3;

if (typeof process !== 'undefined' && process.env && process.env.NODE_ENV === 'test') {
  // Temporary hack.
  // Inline requires don't work well with Jest:
  // https://github.com/facebook/react/issues/7240
  // Remove the inline requires when we don't need them anymore:
  // https://github.com/facebook/react/pull/7178
  ReactComponentTreeHook$3 = ReactComponentTreeHook_1;
}

function instantiateChild(childInstances, child, name, selfDebugID) {
  // We found a component instance.
  var keyUnique = childInstances[name] === undefined;
  if (__DEV__) {
    if (!ReactComponentTreeHook$3) {
      ReactComponentTreeHook$3 = ReactComponentTreeHook_1;
    }
    if (!keyUnique) {
      warning$17(false, 'flattenChildren(...): Encountered two children with the same key, ' + '`%s`. Child keys must be unique; when two children share a key, only ' + 'the first child will be used.%s', KeyEscapeUtils.unescape(name), ReactComponentTreeHook$3.getStackAddendumByID(selfDebugID));
    }
  }
  if (child != null && keyUnique) {
    childInstances[name] = instantiateReactComponent(child, true);
  }
}

/**
 * ReactChildReconciler provides helpers for initializing or updating a set of
 * children. Its output is suitable for passing it onto ReactMultiChild which
 * does diffed reordering and insertion.
 */
var ReactChildReconciler$1 = {
  /**
   * Generates a "mount image" for each of the supplied children. In the case
   * of `ReactDOMComponent`, a mount image is a string of markup.
   *
   * @param {?object} nestedChildNodes Nested child maps.
   * @return {?object} A set of child instances.
   * @internal
   */
  instantiateChildren: function (nestedChildNodes, transaction, context, selfDebugID // 0 in production and for roots
  ) {
    if (nestedChildNodes == null) {
      return null;
    }
    var childInstances = {};

    if (__DEV__) {
      traverseAllChildren(nestedChildNodes, function (childInsts, child, name) {
        return instantiateChild(childInsts, child, name, selfDebugID);
      }, childInstances);
    } else {
      traverseAllChildren(nestedChildNodes, instantiateChild, childInstances);
    }
    return childInstances;
  },

  /**
   * Updates the rendered children and returns a new set of children.
   *
   * @param {?object} prevChildren Previously initialized set of children.
   * @param {?object} nextChildren Flat child element maps.
   * @param {ReactReconcileTransaction} transaction
   * @param {object} context
   * @return {?object} A new set of child instances.
   * @internal
   */
  updateChildren: function (prevChildren, nextChildren, mountImages, removedNodes, transaction, hostParent, hostContainerInfo, context, selfDebugID // 0 in production and for roots
  ) {
    // We currently don't have a way to track moves here but if we use iterators
    // instead of for..in we can zip the iterators and check if an item has
    // moved.
    // TODO: If nothing has changed, return the prevChildren object so that we
    // can quickly bailout if nothing has changed.
    if (!nextChildren && !prevChildren) {
      return;
    }
    var name;
    var prevChild;
    for (name in nextChildren) {
      if (!nextChildren.hasOwnProperty(name)) {
        continue;
      }
      prevChild = prevChildren && prevChildren[name];
      var prevElement = prevChild && prevChild._currentElement;
      var nextElement = nextChildren[name];
      if (prevChild != null && shouldUpdateReactComponent(prevElement, nextElement)) {
        ReactReconciler$3.receiveComponent(prevChild, nextElement, transaction, context);
        nextChildren[name] = prevChild;
      } else {
        if (!ReactFeatureFlags.prepareNewChildrenBeforeUnmountInStack && prevChild) {
          removedNodes[name] = ReactReconciler$3.getHostNode(prevChild);
          ReactReconciler$3.unmountComponent(prevChild, false, /* safely */
          false /* skipLifecycle */
          );
        }
        // The child must be instantiated before it's mounted.
        var nextChildInstance = instantiateReactComponent(nextElement, true);
        nextChildren[name] = nextChildInstance;
        // Creating mount image now ensures refs are resolved in right order
        // (see https://github.com/facebook/react/pull/7101 for explanation).
        var nextChildMountImage = ReactReconciler$3.mountComponent(nextChildInstance, transaction, hostParent, hostContainerInfo, context, selfDebugID);
        mountImages.push(nextChildMountImage);
        if (ReactFeatureFlags.prepareNewChildrenBeforeUnmountInStack && prevChild) {
          removedNodes[name] = ReactReconciler$3.getHostNode(prevChild);
          ReactReconciler$3.unmountComponent(prevChild, false, /* safely */
          false /* skipLifecycle */
          );
        }
      }
    }
    // Unmount children that are no longer present.
    for (name in prevChildren) {
      if (prevChildren.hasOwnProperty(name) && !(nextChildren && nextChildren.hasOwnProperty(name))) {
        prevChild = prevChildren[name];
        removedNodes[name] = ReactReconciler$3.getHostNode(prevChild);
        ReactReconciler$3.unmountComponent(prevChild, false, /* safely */
        false /* skipLifecycle */
        );
      }
    }
  },

  /**
   * Unmounts all rendered children. This should be used to clean up children
   * when this component is unmounted.
   *
   * @param {?object} renderedChildren Previously initialized set of children.
   * @internal
   */
  unmountChildren: function (renderedChildren, safely, skipLifecycle) {
    for (var name in renderedChildren) {
      if (renderedChildren.hasOwnProperty(name)) {
        var renderedChild = renderedChildren[name];
        ReactReconciler$3.unmountComponent(renderedChild, safely, skipLifecycle);
      }
    }
  }

};

var ReactChildReconciler_1 = ReactChildReconciler$1;

var KeyEscapeUtils$3 = KeyEscapeUtils_1;
var traverseAllChildren$2 = traverseAllChildren_1;
var warning$22 = warning;

var ReactComponentTreeHook$4;

if (typeof process !== 'undefined' && process.env && process.env.NODE_ENV === 'test') {
  // Temporary hack.
  // Inline requires don't work well with Jest:
  // https://github.com/facebook/react/issues/7240
  // Remove the inline requires when we don't need them anymore:
  // https://github.com/facebook/react/pull/7178
  ReactComponentTreeHook$4 = ReactComponentTreeHook_1;
}

/**
 * @param {function} traverseContext Context passed through traversal.
 * @param {?ReactComponent} child React child component.
 * @param {!string} name String name of key path to child.
 * @param {number=} selfDebugID Optional debugID of the current internal instance.
 */
function flattenSingleChildIntoContext(traverseContext, child, name, selfDebugID) {
  // We found a component instance.
  if (traverseContext && typeof traverseContext === 'object') {
    var result = traverseContext;
    var keyUnique = result[name] === undefined;
    if (__DEV__) {
      if (!ReactComponentTreeHook$4) {
        ReactComponentTreeHook$4 = ReactComponentTreeHook_1;
      }
      if (!keyUnique) {
        warning$22(false, 'flattenChildren(...): Encountered two children with the same key, ' + '`%s`. Child keys must be unique; when two children share a key, only ' + 'the first child will be used.%s', KeyEscapeUtils$3.unescape(name), ReactComponentTreeHook$4.getStackAddendumByID(selfDebugID));
      }
    }
    if (keyUnique && child != null) {
      result[name] = child;
    }
  }
}

/**
 * Flattens children that are typically specified as `props.children`. Any null
 * children will not be included in the resulting object.
 * @return {!object} flattened children keyed by name.
 */
function flattenChildren$2(children, selfDebugID) {
  if (children == null) {
    return children;
  }
  var result = {};

  if (__DEV__) {
    traverseAllChildren$2(children, function (traverseContext, child, name) {
      return flattenSingleChildIntoContext(traverseContext, child, name, selfDebugID);
    }, result);
  } else {
    traverseAllChildren$2(children, flattenSingleChildIntoContext, result);
  }
  return result;
}

var flattenChildren_1 = flattenChildren$2;

var ReactComponentEnvironment$2 = ReactComponentEnvironment_1;
var ReactInstanceMap = ReactInstanceMap_1;
var ReactInstrumentation$6 = ReactInstrumentation$2;

var ReactCurrentOwner$2 = ReactCurrentOwner_1;
var ReactReconciler$1 = ReactReconciler_1;
var ReactChildReconciler = ReactChildReconciler_1;

var emptyFunction$4 = emptyFunction;
var flattenChildren$1 = flattenChildren_1;
var invariant$15 = invariant;

/**
 * Make an update for markup to be rendered and inserted at a supplied index.
 *
 * @param {string} markup Markup that renders into an element.
 * @param {number} toIndex Destination index.
 * @private
 */
function makeInsertMarkup(markup, afterNode, toIndex) {
  // NOTE: Null values reduce hidden classes.
  return {
    type: 'INSERT_MARKUP',
    content: markup,
    fromIndex: null,
    fromNode: null,
    toIndex: toIndex,
    afterNode: afterNode
  };
}

/**
 * Make an update for moving an existing element to another index.
 *
 * @param {number} fromIndex Source index of the existing element.
 * @param {number} toIndex Destination index of the element.
 * @private
 */
function makeMove(child, afterNode, toIndex) {
  // NOTE: Null values reduce hidden classes.
  return {
    type: 'MOVE_EXISTING',
    content: null,
    fromIndex: child._mountIndex,
    fromNode: ReactReconciler$1.getHostNode(child),
    toIndex: toIndex,
    afterNode: afterNode
  };
}

/**
 * Make an update for removing an element at an index.
 *
 * @param {number} fromIndex Index of the element to remove.
 * @private
 */
function makeRemove(child, node) {
  // NOTE: Null values reduce hidden classes.
  return {
    type: 'REMOVE_NODE',
    content: null,
    fromIndex: child._mountIndex,
    fromNode: node,
    toIndex: null,
    afterNode: null
  };
}

/**
 * Make an update for setting the markup of a node.
 *
 * @param {string} markup Markup that renders into an element.
 * @private
 */
function makeSetMarkup(markup) {
  // NOTE: Null values reduce hidden classes.
  return {
    type: 'SET_MARKUP',
    content: markup,
    fromIndex: null,
    fromNode: null,
    toIndex: null,
    afterNode: null
  };
}

/**
 * Make an update for setting the text content.
 *
 * @param {string} textContent Text content to set.
 * @private
 */
function makeTextContent(textContent) {
  // NOTE: Null values reduce hidden classes.
  return {
    type: 'TEXT_CONTENT',
    content: textContent,
    fromIndex: null,
    fromNode: null,
    toIndex: null,
    afterNode: null
  };
}

/**
 * Push an update, if any, onto the queue. Creates a new queue if none is
 * passed and always returns the queue. Mutative.
 */
function enqueue(queue, update) {
  if (update) {
    queue = queue || [];
    queue.push(update);
  }
  return queue;
}

/**
 * Processes any enqueued updates.
 *
 * @private
 */
function processQueue(inst, updateQueue) {
  ReactComponentEnvironment$2.processChildrenUpdates(inst, updateQueue);
}

var setChildrenForInstrumentation = emptyFunction$4;
if (__DEV__) {
  var getDebugID = function (inst) {
    if (!inst._debugID) {
      // Check for ART-like instances. TODO: This is silly/gross.
      var internal;
      if (internal = ReactInstanceMap.get(inst)) {
        inst = internal;
      }
    }
    return inst._debugID;
  };
  setChildrenForInstrumentation = function (children) {
    var debugID = getDebugID(this);
    // TODO: React Native empty components are also multichild.
    // This means they still get into this method but don't have _debugID.
    if (debugID !== 0) {
      ReactInstrumentation$6.debugTool.onSetChildren(debugID, children ? Object.keys(children).map(function (key) {
        return children[key]._debugID;
      }) : []);
    }
  };
}

/**
 * Provides common functionality for components that must reconcile multiple
 * children. This is used by `ReactDOMComponent` to mount, update, and
 * unmount child components.
 */
var ReactMultiChild$1 = {
  _reconcilerInstantiateChildren: function (nestedChildren, transaction, context) {
    if (__DEV__) {
      var selfDebugID = getDebugID(this);
      if (this._currentElement) {
        try {
          ReactCurrentOwner$2.current = this._currentElement._owner;
          return ReactChildReconciler.instantiateChildren(nestedChildren, transaction, context, selfDebugID);
        } finally {
          ReactCurrentOwner$2.current = null;
        }
      }
    }
    return ReactChildReconciler.instantiateChildren(nestedChildren, transaction, context);
  },

  _reconcilerUpdateChildren: function (prevChildren, nextNestedChildrenElements, mountImages, removedNodes, transaction, context) {
    var nextChildren;
    var selfDebugID = 0;
    if (__DEV__) {
      selfDebugID = getDebugID(this);
      if (this._currentElement) {
        try {
          ReactCurrentOwner$2.current = this._currentElement._owner;
          nextChildren = flattenChildren$1(nextNestedChildrenElements, selfDebugID);
        } finally {
          ReactCurrentOwner$2.current = null;
        }
        ReactChildReconciler.updateChildren(prevChildren, nextChildren, mountImages, removedNodes, transaction, this, this._hostContainerInfo, context, selfDebugID);
        return nextChildren;
      }
    }
    nextChildren = flattenChildren$1(nextNestedChildrenElements, selfDebugID);
    ReactChildReconciler.updateChildren(prevChildren, nextChildren, mountImages, removedNodes, transaction, this, this._hostContainerInfo, context, selfDebugID);
    return nextChildren;
  },

  /**
   * Generates a "mount image" for each of the supplied children. In the case
   * of `ReactDOMComponent`, a mount image is a string of markup.
   *
   * @param {?object} nestedChildren Nested child maps.
   * @return {array} An array of mounted representations.
   * @internal
   */
  mountChildren: function (nestedChildren, transaction, context) {
    var children = this._reconcilerInstantiateChildren(nestedChildren, transaction, context);
    this._renderedChildren = children;

    var mountImages = [];
    var index = 0;
    for (var name in children) {
      if (children.hasOwnProperty(name)) {
        var child = children[name];
        var selfDebugID = 0;
        if (__DEV__) {
          selfDebugID = getDebugID(this);
        }
        var mountImage = ReactReconciler$1.mountComponent(child, transaction, this, this._hostContainerInfo, context, selfDebugID);
        child._mountIndex = index++;
        mountImages.push(mountImage);
      }
    }

    if (__DEV__) {
      setChildrenForInstrumentation.call(this, children);
    }

    return mountImages;
  },

  /**
   * Replaces any rendered children with a text content string.
   *
   * @param {string} nextContent String of content.
   * @internal
   */
  updateTextContent: function (nextContent) {
    var prevChildren = this._renderedChildren;
    // Remove any rendered children.
    ReactChildReconciler.unmountChildren(prevChildren, false, /* safely */
    false /* skipLifecycle */
    );
    for (var name in prevChildren) {
      if (prevChildren.hasOwnProperty(name)) {
        invariant$15(false, 'updateTextContent called on non-empty component.');
      }
    }
    // Set new text content.
    var updates = [makeTextContent(nextContent)];
    processQueue(this, updates);
  },

  /**
   * Replaces any rendered children with a markup string.
   *
   * @param {string} nextMarkup String of markup.
   * @internal
   */
  updateMarkup: function (nextMarkup) {
    var prevChildren = this._renderedChildren;
    // Remove any rendered children.
    ReactChildReconciler.unmountChildren(prevChildren, false, /* safely */
    false /* skipLifecycle */
    );
    for (var name in prevChildren) {
      if (prevChildren.hasOwnProperty(name)) {
        invariant$15(false, 'updateTextContent called on non-empty component.');
      }
    }
    var updates = [makeSetMarkup(nextMarkup)];
    processQueue(this, updates);
  },

  /**
   * Updates the rendered children with new children.
   *
   * @param {?object} nextNestedChildrenElements Nested child element maps.
   * @param {ReactReconcileTransaction} transaction
   * @internal
   */
  updateChildren: function (nextNestedChildrenElements, transaction, context) {
    // Hook used by React ART
    this._updateChildren(nextNestedChildrenElements, transaction, context);
  },

  /**
   * @param {?object} nextNestedChildrenElements Nested child element maps.
   * @param {ReactReconcileTransaction} transaction
   * @final
   * @protected
   */
  _updateChildren: function (nextNestedChildrenElements, transaction, context) {
    var prevChildren = this._renderedChildren;
    var removedNodes = {};
    var mountImages = [];
    var nextChildren = this._reconcilerUpdateChildren(prevChildren, nextNestedChildrenElements, mountImages, removedNodes, transaction, context);
    if (!nextChildren && !prevChildren) {
      return;
    }
    var updates = null;
    var name;
    // `nextIndex` will increment for each child in `nextChildren`, but
    // `lastIndex` will be the last index visited in `prevChildren`.
    var nextIndex = 0;
    var lastIndex = 0;
    // `nextMountIndex` will increment for each newly mounted child.
    var nextMountIndex = 0;
    var lastPlacedNode = null;
    for (name in nextChildren) {
      if (!nextChildren.hasOwnProperty(name)) {
        continue;
      }
      var prevChild = prevChildren && prevChildren[name];
      var nextChild = nextChildren[name];
      if (prevChild === nextChild) {
        updates = enqueue(updates, this.moveChild(prevChild, lastPlacedNode, nextIndex, lastIndex));
        lastIndex = Math.max(prevChild._mountIndex, lastIndex);
        prevChild._mountIndex = nextIndex;
      } else {
        if (prevChild) {
          // Update `lastIndex` before `_mountIndex` gets unset by unmounting.
          lastIndex = Math.max(prevChild._mountIndex, lastIndex);
          // The `removedNodes` loop below will actually remove the child.
        }
        // The child must be instantiated before it's mounted.
        updates = enqueue(updates, this._mountChildAtIndex(nextChild, mountImages[nextMountIndex], lastPlacedNode, nextIndex, transaction, context));
        nextMountIndex++;
      }
      nextIndex++;
      lastPlacedNode = ReactReconciler$1.getHostNode(nextChild);
    }
    // Remove children that are no longer present.
    for (name in removedNodes) {
      if (removedNodes.hasOwnProperty(name)) {
        updates = enqueue(updates, this._unmountChild(prevChildren[name], removedNodes[name]));
      }
    }
    if (updates) {
      processQueue(this, updates);
    }
    this._renderedChildren = nextChildren;

    if (__DEV__) {
      setChildrenForInstrumentation.call(this, nextChildren);
    }
  },

  /**
   * Unmounts all rendered children. This should be used to clean up children
   * when this component is unmounted. It does not actually perform any
   * backend operations.
   *
   * @internal
   */
  unmountChildren: function (safely, skipLifecycle) {
    var renderedChildren = this._renderedChildren;
    ReactChildReconciler.unmountChildren(renderedChildren, safely, skipLifecycle);
    this._renderedChildren = null;
  },

  /**
   * Moves a child component to the supplied index.
   *
   * @param {ReactComponent} child Component to move.
   * @param {number} toIndex Destination index of the element.
   * @param {number} lastIndex Last index visited of the siblings of `child`.
   * @protected
   */
  moveChild: function (child, afterNode, toIndex, lastIndex) {
    // If the index of `child` is less than `lastIndex`, then it needs to
    // be moved. Otherwise, we do not need to move it because a child will be
    // inserted or moved before `child`.
    if (child._mountIndex < lastIndex) {
      return makeMove(child, afterNode, toIndex);
    }
  },

  /**
   * Creates a child component.
   *
   * @param {ReactComponent} child Component to create.
   * @param {string} mountImage Markup to insert.
   * @protected
   */
  createChild: function (child, afterNode, mountImage) {
    return makeInsertMarkup(mountImage, afterNode, child._mountIndex);
  },

  /**
   * Removes a child component.
   *
   * @param {ReactComponent} child Child to remove.
   * @protected
   */
  removeChild: function (child, node) {
    return makeRemove(child, node);
  },

  /**
   * Mounts a child with the supplied name.
   *
   * NOTE: This is part of `updateChildren` and is here for readability.
   *
   * @param {ReactComponent} child Component to mount.
   * @param {string} name Name of the child.
   * @param {number} index Index at which to insert the child.
   * @param {ReactReconcileTransaction} transaction
   * @private
   */
  _mountChildAtIndex: function (child, mountImage, afterNode, index, transaction, context) {
    child._mountIndex = index;
    return this.createChild(child, afterNode, mountImage);
  },

  /**
   * Unmounts a rendered child.
   *
   * NOTE: This is part of `updateChildren` and is here for readability.
   *
   * @param {ReactComponent} child Component to unmount.
   * @private
   */
  _unmountChild: function (child, node) {
    var update = this.removeChild(child, node);
    child._mountIndex = null;
    return update;
  }
};

var ReactMultiChild_1 = ReactMultiChild$1;

var invariant$23 = invariant;

var OBSERVED_ERROR = {};

/**
 * `Transaction` creates a black box that is able to wrap any method such that
 * certain invariants are maintained before and after the method is invoked
 * (Even if an exception is thrown while invoking the wrapped method). Whoever
 * instantiates a transaction can provide enforcers of the invariants at
 * creation time. The `Transaction` class itself will supply one additional
 * automatic invariant for you - the invariant that any transaction instance
 * should not be run while it is already being run. You would typically create a
 * single instance of a `Transaction` for reuse multiple times, that potentially
 * is used to wrap several different methods. Wrappers are extremely simple -
 * they only require implementing two methods.
 *
 * <pre>
 *                       wrappers (injected at creation time)
 *                                      +        +
 *                                      |        |
 *                    +-----------------|--------|--------------+
 *                    |                 v        |              |
 *                    |      +---------------+   |              |
 *                    |   +--|    wrapper1   |---|----+         |
 *                    |   |  +---------------+   v    |         |
 *                    |   |          +-------------+  |         |
 *                    |   |     +----|   wrapper2  |--------+   |
 *                    |   |     |    +-------------+  |     |   |
 *                    |   |     |                     |     |   |
 *                    |   v     v                     v     v   | wrapper
 *                    | +---+ +---+   +---------+   +---+ +---+ | invariants
 * perform(anyMethod) | |   | |   |   |         |   |   | |   | | maintained
 * +----------------->|-|---|-|---|-->|anyMethod|---|---|-|---|-|-------->
 *                    | |   | |   |   |         |   |   | |   | |
 *                    | |   | |   |   |         |   |   | |   | |
 *                    | |   | |   |   |         |   |   | |   | |
 *                    | +---+ +---+   +---------+   +---+ +---+ |
 *                    |  initialize                    close    |
 *                    +-----------------------------------------+
 * </pre>
 *
 * Use cases:
 * - Preserving the input selection ranges before/after reconciliation.
 *   Restoring selection even in the event of an unexpected error.
 * - Deactivating events while rearranging the DOM, preventing blurs/focuses,
 *   while guaranteeing that afterwards, the event system is reactivated.
 * - Flushing a queue of collected DOM mutations to the main UI thread after a
 *   reconciliation takes place in a worker thread.
 * - Invoking any collected `componentDidUpdate` callbacks after rendering new
 *   content.
 * - (Future use case): Wrapping particular flushes of the `ReactWorker` queue
 *   to preserve the `scrollTop` (an automatic scroll aware DOM).
 * - (Future use case): Layout calculations before and after DOM updates.
 *
 * Transactional plugin API:
 * - A module that has an `initialize` method that returns any precomputation.
 * - and a `close` method that accepts the precomputation. `close` is invoked
 *   when the wrapped process is completed, or has failed.
 *
 * @param {Array<TransactionalWrapper>} transactionWrapper Wrapper modules
 * that implement `initialize` and `close`.
 * @return {Transaction} Single transaction for reuse in thread.
 *
 * @class Transaction
 */
var TransactionImpl = {
  /**
   * Sets up this instance so that it is prepared for collecting metrics. Does
   * so such that this setup method may be used on an instance that is already
   * initialized, in a way that does not consume additional memory upon reuse.
   * That can be useful if you decide to make your subclass of this mixin a
   * "PooledClass".
   */
  reinitializeTransaction: function () {
    this.transactionWrappers = this.getTransactionWrappers();
    if (this.wrapperInitData) {
      this.wrapperInitData.length = 0;
    } else {
      this.wrapperInitData = [];
    }
    this._isInTransaction = false;
  },

  _isInTransaction: false,

  /**
   * @abstract
   * @return {Array<TransactionWrapper>} Array of transaction wrappers.
   */
  getTransactionWrappers: null,

  isInTransaction: function () {
    return !!this._isInTransaction;
  },

  /**
   * Executes the function within a safety window. Use this for the top level
   * methods that result in large amounts of computation/mutations that would
   * need to be safety checked. The optional arguments helps prevent the need
   * to bind in many cases.
   *
   * @param {function} method Member of scope to call.
   * @param {Object} scope Scope to invoke from.
   * @param {Object?=} a Argument to pass to the method.
   * @param {Object?=} b Argument to pass to the method.
   * @param {Object?=} c Argument to pass to the method.
   * @param {Object?=} d Argument to pass to the method.
   * @param {Object?=} e Argument to pass to the method.
   * @param {Object?=} f Argument to pass to the method.
   *
   * @return {*} Return value from `method`.
   */
  perform: function (method, scope, a, b, c, d, e, f) {
    invariant$23(!this.isInTransaction(), 'Transaction.perform(...): Cannot initialize a transaction when there ' + 'is already an outstanding transaction.');
    var errorThrown;
    var ret;
    try {
      this._isInTransaction = true;
      // Catching errors makes debugging more difficult, so we start with
      // errorThrown set to true before setting it to false after calling
      // close -- if it's still set to true in the finally block, it means
      // one of these calls threw.
      errorThrown = true;
      this.initializeAll(0);
      ret = method.call(scope, a, b, c, d, e, f);
      errorThrown = false;
    } finally {
      try {
        if (errorThrown) {
          // If `method` throws, prefer to show that stack trace over any thrown
          // by invoking `closeAll`.
          try {
            this.closeAll(0);
          } catch (err) {}
        } else {
          // Since `method` didn't throw, we don't want to silence the exception
          // here.
          this.closeAll(0);
        }
      } finally {
        this._isInTransaction = false;
      }
    }
    return ret;
  },

  initializeAll: function (startIndex) {
    var transactionWrappers = this.transactionWrappers;
    for (var i = startIndex; i < transactionWrappers.length; i++) {
      var wrapper = transactionWrappers[i];
      try {
        // Catching errors makes debugging more difficult, so we start with the
        // OBSERVED_ERROR state before overwriting it with the real return value
        // of initialize -- if it's still set to OBSERVED_ERROR in the finally
        // block, it means wrapper.initialize threw.
        this.wrapperInitData[i] = OBSERVED_ERROR;
        this.wrapperInitData[i] = wrapper.initialize ? wrapper.initialize.call(this) : null;
      } finally {
        if (this.wrapperInitData[i] === OBSERVED_ERROR) {
          // The initializer for wrapper i threw an error; initialize the
          // remaining wrappers but silence any exceptions from them to ensure
          // that the first error is the one to bubble up.
          try {
            this.initializeAll(i + 1);
          } catch (err) {}
        }
      }
    }
  },

  /**
   * Invokes each of `this.transactionWrappers.close[i]` functions, passing into
   * them the respective return values of `this.transactionWrappers.init[i]`
   * (`close`rs that correspond to initializers that failed will not be
   * invoked).
   */
  closeAll: function (startIndex) {
    invariant$23(this.isInTransaction(), 'Transaction.closeAll(): Cannot close transaction when none are open.');
    var transactionWrappers = this.transactionWrappers;
    for (var i = startIndex; i < transactionWrappers.length; i++) {
      var wrapper = transactionWrappers[i];
      var initData = this.wrapperInitData[i];
      var errorThrown;
      try {
        // Catching errors makes debugging more difficult, so we start with
        // errorThrown set to true before setting it to false after calling
        // close -- if it's still set to true in the finally block, it means
        // wrapper.close threw.
        errorThrown = true;
        if (initData !== OBSERVED_ERROR && wrapper.close) {
          wrapper.close.call(this, initData);
        }
        errorThrown = false;
      } finally {
        if (errorThrown) {
          // The closer for wrapper i threw an error; close the remaining
          // wrappers but silence any exceptions from them to ensure that the
          // first error is the one to bubble up.
          try {
            this.closeAll(i + 1);
          } catch (e) {}
        }
      }
    }
    this.wrapperInitData.length = 0;
  }
};

var Transaction$1 = TransactionImpl;

var PooledClass$5 = PooledClass_1;
var ReactFeatureFlags$3 = ReactFeatureFlags_1;
var ReactReconciler$5 = ReactReconciler_1;
var Transaction$3 = Transaction$1;

var invariant$24 = invariant;

var dirtyComponents = [];
var updateBatchNumber = 0;

var batchingStrategy = null;

function ensureInjected() {
  invariant$24(ReactUpdates$2.ReactReconcileTransaction && batchingStrategy, 'ReactUpdates: must inject a reconcile transaction class and batching ' + 'strategy');
}

var NESTED_UPDATES = {
  initialize: function () {
    this.dirtyComponentsLength = dirtyComponents.length;
  },
  close: function () {
    if (this.dirtyComponentsLength !== dirtyComponents.length) {
      // Additional updates were enqueued by componentDidUpdate handlers or
      // similar; before our own UPDATE_QUEUEING wrapper closes, we want to run
      // these new updates so that if A's componentDidUpdate calls setState on
      // B, B will update before the callback A's updater provided when calling
      // setState.
      dirtyComponents.splice(0, this.dirtyComponentsLength);
      flushBatchedUpdates();
    } else {
      dirtyComponents.length = 0;
    }
  }
};

var TRANSACTION_WRAPPERS$1 = [NESTED_UPDATES];

function ReactUpdatesFlushTransaction() {
  this.reinitializeTransaction();
  this.dirtyComponentsLength = null;
  this.reconcileTransaction = ReactUpdates$2.ReactReconcileTransaction.getPooled(
  /* useCreateElement */true);
}

Object.assign(ReactUpdatesFlushTransaction.prototype, Transaction$3, {
  getTransactionWrappers: function () {
    return TRANSACTION_WRAPPERS$1;
  },

  destructor: function () {
    this.dirtyComponentsLength = null;
    ReactUpdates$2.ReactReconcileTransaction.release(this.reconcileTransaction);
    this.reconcileTransaction = null;
  },

  perform: function (method, scope, a) {
    // Essentially calls `this.reconcileTransaction.perform(method, scope, a)`
    // with this transaction's wrappers around it.
    return Transaction$3.perform.call(this, this.reconcileTransaction.perform, this.reconcileTransaction, method, scope, a);
  }
});

PooledClass$5.addPoolingTo(ReactUpdatesFlushTransaction);

function batchedUpdates$1(callback, a, b, c, d, e) {
  ensureInjected();
  return batchingStrategy.batchedUpdates(callback, a, b, c, d, e);
}

/**
 * Array comparator for ReactComponents by mount ordering.
 *
 * @param {ReactComponent} c1 first component you're comparing
 * @param {ReactComponent} c2 second component you're comparing
 * @return {number} Return value usable by Array.prototype.sort().
 */
function mountOrderComparator(c1, c2) {
  return c1._mountOrder - c2._mountOrder;
}

function runBatchedUpdates(transaction) {
  var len = transaction.dirtyComponentsLength;
  invariant$24(len === dirtyComponents.length, 'Expected flush transaction\'s stored dirty-components length (%s) to ' + 'match dirty-components array length (%s).', len, dirtyComponents.length);

  // Since reconciling a component higher in the owner hierarchy usually (not
  // always -- see shouldComponentUpdate()) will reconcile children, reconcile
  // them before their children by sorting the array.
  dirtyComponents.sort(mountOrderComparator);

  // Any updates enqueued while reconciling must be performed after this entire
  // batch. Otherwise, if dirtyComponents is [A, B] where A has children B and
  // C, B could update twice in a single batch if C's render enqueues an update
  // to B (since B would have already updated, we should skip it, and the only
  // way we can know to do so is by checking the batch counter).
  updateBatchNumber++;

  for (var i = 0; i < len; i++) {
    // If a component is unmounted before pending changes apply, it will still
    // be here, but we assume that it has cleared its _pendingCallbacks and
    // that performUpdateIfNecessary is a noop.
    var component = dirtyComponents[i];

    var markerName;
    if (ReactFeatureFlags$3.logTopLevelRenders) {
      var namedComponent = component;
      // Duck type TopLevelWrapper. This is probably always true.
      if (component._currentElement.type.isReactTopLevelWrapper) {
        namedComponent = component._renderedComponent;
      }
      markerName = 'React update: ' + namedComponent.getName();
      console.time(markerName);
    }

    ReactReconciler$5.performUpdateIfNecessary(component, transaction.reconcileTransaction, updateBatchNumber);

    if (markerName) {
      console.timeEnd(markerName);
    }
  }
}

var flushBatchedUpdates = function () {
  // ReactUpdatesFlushTransaction's wrappers will clear the dirtyComponents
  // array and perform any updates enqueued by mount-ready handlers (i.e.,
  // componentDidUpdate) but we need to check here too in order to catch
  // updates enqueued by setState callbacks.
  while (dirtyComponents.length) {
    var transaction = ReactUpdatesFlushTransaction.getPooled();
    transaction.perform(runBatchedUpdates, null, transaction);
    ReactUpdatesFlushTransaction.release(transaction);
  }
};

/**
 * Mark a component as needing a rerender, adding an optional callback to a
 * list of functions which will be executed once the rerender occurs.
 */
function enqueueUpdate$1(component) {
  ensureInjected();

  // Various parts of our code (such as ReactCompositeComponent's
  // _renderValidatedComponent) assume that calls to render aren't nested;
  // verify that that's the case. (This is called by each top-level update
  // function, like setState, forceUpdate, etc.; creation and
  // destruction of top-level components is guarded in ReactMount.)

  if (!batchingStrategy.isBatchingUpdates) {
    batchingStrategy.batchedUpdates(enqueueUpdate$1, component);
    return;
  }

  dirtyComponents.push(component);
  if (component._updateBatchNumber == null) {
    component._updateBatchNumber = updateBatchNumber + 1;
  }
}

var ReactUpdatesInjection = {
  injectReconcileTransaction: function (ReconcileTransaction) {
    invariant$24(ReconcileTransaction, 'ReactUpdates: must provide a reconcile transaction class');
    ReactUpdates$2.ReactReconcileTransaction = ReconcileTransaction;
  },

  injectBatchingStrategy: function (_batchingStrategy) {
    invariant$24(_batchingStrategy, 'ReactUpdates: must provide a batching strategy');
    invariant$24(typeof _batchingStrategy.batchedUpdates === 'function', 'ReactUpdates: must provide a batchedUpdates() function');
    invariant$24(typeof _batchingStrategy.isBatchingUpdates === 'boolean', 'ReactUpdates: must provide an isBatchingUpdates boolean attribute');
    batchingStrategy = _batchingStrategy;
  },

  getBatchingStrategy: function () {
    return batchingStrategy;
  }
};

var ReactUpdates$2 = {
  /**
   * React references `ReactReconcileTransaction` using this property in order
   * to allow dependency injection.
   *
   * @internal
   */
  ReactReconcileTransaction: null,

  batchedUpdates: batchedUpdates$1,
  enqueueUpdate: enqueueUpdate$1,
  flushBatchedUpdates: flushBatchedUpdates,
  injection: ReactUpdatesInjection
};

var ReactUpdates_1 = ReactUpdates$2;

var ReactCurrentOwner$5 = ReactCurrentOwner_1;
var ReactInstanceMap$3 = ReactInstanceMap_1;
var ReactInstrumentation$10 = ReactInstrumentation$2;
var ReactUpdates$1 = ReactUpdates_1;

if (__DEV__) {
  var warning$24 = warning;
  var warnOnInvalidCallback = function (callback, callerName) {
    warning$24(callback === null || typeof callback === 'function', '%s(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callerName, '' + callback);
  };
}

function enqueueUpdate(internalInstance) {
  ReactUpdates$1.enqueueUpdate(internalInstance);
}

function getInternalInstanceReadyForUpdate(publicInstance, callerName) {
  var internalInstance = ReactInstanceMap$3.get(publicInstance);
  if (!internalInstance) {
    if (__DEV__) {
      var ctor = publicInstance.constructor;
      warning$24(false, 'Can only update a mounted or mounting component. This usually means ' + 'you called setState, replaceState, or forceUpdate on an unmounted ' + 'component. This is a no-op.\n\nPlease check the code for the ' + '%s component.', ctor && (ctor.displayName || ctor.name) || 'ReactClass');
    }
    return null;
  }

  if (__DEV__) {
    warning$24(ReactCurrentOwner$5.current == null, 'Cannot update during an existing state transition (such as within ' + '`render` or another component\'s constructor). Render methods should ' + 'be a pure function of props and state; constructor side-effects are ' + 'an anti-pattern, but can be moved to `componentWillMount`.');
  }

  return internalInstance;
}

/**
 * ReactUpdateQueue allows for state updates to be scheduled into a later
 * reconciliation step.
 */
var ReactUpdateQueue$1 = {

  /**
   * Checks whether or not this composite component is mounted.
   * @param {ReactClass} publicInstance The instance we want to test.
   * @return {boolean} True if mounted, false otherwise.
   * @protected
   * @final
   */
  isMounted: function (publicInstance) {
    if (__DEV__) {
      var owner = ReactCurrentOwner$5.current;
      if (owner !== null) {
        warning$24(owner._warnedAboutRefsInRender, '%s is accessing isMounted inside its render() function. ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', owner.getName() || 'A component');
        owner._warnedAboutRefsInRender = true;
      }
    }
    var internalInstance = ReactInstanceMap$3.get(publicInstance);
    if (internalInstance) {
      // During componentWillMount and render this will still be null but after
      // that will always render to something. At least for now. So we can use
      // this hack.
      return !!internalInstance._renderedComponent;
    } else {
      return false;
    }
  },

  enqueueCallbackInternal: function (internalInstance, callback) {
    if (internalInstance._pendingCallbacks) {
      internalInstance._pendingCallbacks.push(callback);
    } else {
      internalInstance._pendingCallbacks = [callback];
    }
    enqueueUpdate(internalInstance);
  },

  /**
   * Forces an update. This should only be invoked when it is known with
   * certainty that we are **not** in a DOM transaction.
   *
   * You may want to call this when you know that some deeper aspect of the
   * component's state has changed but `setState` was not called.
   *
   * This will not invoke `shouldComponentUpdate`, but it will invoke
   * `componentWillUpdate` and `componentDidUpdate`.
   *
   * @param {ReactClass} publicInstance The instance that should rerender.
   * @param {?function} callback Called after component is updated.
   * @param {?string} Name of the calling function in the public API.
   * @internal
   */
  enqueueForceUpdate: function (publicInstance, callback, callerName) {
    var internalInstance = getInternalInstanceReadyForUpdate(publicInstance);

    if (!internalInstance) {
      return;
    }

    if (callback) {
      callback = callback === undefined ? null : callback;
      if (__DEV__) {
        warnOnInvalidCallback(callback, callerName);
      }
      if (internalInstance._pendingCallbacks) {
        internalInstance._pendingCallbacks.push(callback);
      } else {
        internalInstance._pendingCallbacks = [callback];
      }
    }

    internalInstance._pendingForceUpdate = true;

    enqueueUpdate(internalInstance);
  },

  /**
   * Replaces all of the state. Always use this or `setState` to mutate state.
   * You should treat `this.state` as immutable.
   *
   * There is no guarantee that `this.state` will be immediately updated, so
   * accessing `this.state` after calling this method may return the old value.
   *
   * @param {ReactClass} publicInstance The instance that should rerender.
   * @param {object} completeState Next state.
   * @param {?function} callback Called after state is updated.
   * @param {?string} Name of the calling function in the public API.
   * @internal
   */
  enqueueReplaceState: function (publicInstance, completeState, callback, callerName) {
    var internalInstance = getInternalInstanceReadyForUpdate(publicInstance);

    if (!internalInstance) {
      return;
    }

    internalInstance._pendingStateQueue = [completeState];
    internalInstance._pendingReplaceState = true;

    if (callback) {
      callback = callback === undefined ? null : callback;
      if (__DEV__) {
        warnOnInvalidCallback(callback, callerName);
      }
      if (internalInstance._pendingCallbacks) {
        internalInstance._pendingCallbacks.push(callback);
      } else {
        internalInstance._pendingCallbacks = [callback];
      }
    }

    enqueueUpdate(internalInstance);
  },

  /**
   * Sets a subset of the state. This only exists because _pendingState is
   * internal. This provides a merging strategy that is not available to deep
   * properties which is confusing. TODO: Expose pendingState or don't use it
   * during the merge.
   *
   * @param {ReactClass} publicInstance The instance that should rerender.
   * @param {object} partialState Next partial state to be merged with state.
   * @param {?function} callback Called after state is updated.
   * @param {?string} Name of the calling function in the public API.
   * @internal
   */
  enqueueSetState: function (publicInstance, partialState, callback, callerName) {
    if (__DEV__) {
      ReactInstrumentation$10.debugTool.onSetState();
      warning$24(partialState != null, 'setState(...): You passed an undefined or null state object; ' + 'instead, use forceUpdate().');
    }

    var internalInstance = getInternalInstanceReadyForUpdate(publicInstance);

    if (!internalInstance) {
      return;
    }

    var queue = internalInstance._pendingStateQueue || (internalInstance._pendingStateQueue = []);
    queue.push(partialState);

    if (callback) {
      callback = callback === undefined ? null : callback;
      if (__DEV__) {
        warnOnInvalidCallback(callback, callerName);
      }
      if (internalInstance._pendingCallbacks) {
        internalInstance._pendingCallbacks.push(callback);
      } else {
        internalInstance._pendingCallbacks = [callback];
      }
    }

    enqueueUpdate(internalInstance);
  },

  enqueueElementInternal: function (internalInstance, nextElement, nextContext) {
    internalInstance._pendingElement = nextElement;
    // TODO: introduce _pendingContext instead of setting it directly.
    internalInstance._context = nextContext;
    enqueueUpdate(internalInstance);
  }

};

var ReactUpdateQueue_1 = ReactUpdateQueue$1;

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var ReactUpdateQueue = ReactUpdateQueue_1;

var warning$23 = warning;

function warnNoop(publicInstance, callerName) {
  if (__DEV__) {
    var constructor = publicInstance.constructor;
    warning$23(false, '%s(...): Can only update a mounting component. ' + 'This usually means you called %s() outside componentWillMount() on the server. ' + 'This is a no-op.\n\nPlease check the code for the %s component.', callerName, callerName, constructor && (constructor.displayName || constructor.name) || 'ReactClass');
  }
}

/**
 * This is the update queue used for server rendering.
 * It delegates to ReactUpdateQueue while server rendering is in progress and
 * switches to ReactNoopUpdateQueue after the transaction has completed.
 * @class ReactServerUpdateQueue
 * @param {Transaction} transaction
 */

var ReactServerUpdateQueue$1 = function () {
  function ReactServerUpdateQueue(transaction) {
    _classCallCheck(this, ReactServerUpdateQueue);

    this.transaction = transaction;
  }

  /**
   * Checks whether or not this composite component is mounted.
   * @param {ReactClass} publicInstance The instance we want to test.
   * @return {boolean} True if mounted, false otherwise.
   * @protected
   * @final
   */


  ReactServerUpdateQueue.prototype.isMounted = function isMounted(publicInstance) {
    return false;
  };

  /**
   * Forces an update. This should only be invoked when it is known with
   * certainty that we are **not** in a DOM transaction.
   *
   * You may want to call this when you know that some deeper aspect of the
   * component's state has changed but `setState` was not called.
   *
   * This will not invoke `shouldComponentUpdate`, but it will invoke
   * `componentWillUpdate` and `componentDidUpdate`.
   *
   * @param {ReactClass} publicInstance The instance that should rerender.
   * @param {?function} callback Called after component is updated.
   * @param {?string} Name of the calling function in the public API.
   * @internal
   */


  ReactServerUpdateQueue.prototype.enqueueForceUpdate = function enqueueForceUpdate(publicInstance, callback, callerName) {
    if (this.transaction.isInTransaction()) {
      ReactUpdateQueue.enqueueForceUpdate(publicInstance, callback, callerName);
    } else {
      warnNoop(publicInstance, 'forceUpdate');
    }
  };

  /**
   * Replaces all of the state. Always use this or `setState` to mutate state.
   * You should treat `this.state` as immutable.
   *
   * There is no guarantee that `this.state` will be immediately updated, so
   * accessing `this.state` after calling this method may return the old value.
   *
   * @param {ReactClass} publicInstance The instance that should rerender.
   * @param {object|function} completeState Next state.
   * @param {?function} callback Called after component is updated.
   * @param {?string} Name of the calling function in the public API.
   * @internal
   */


  ReactServerUpdateQueue.prototype.enqueueReplaceState = function enqueueReplaceState(publicInstance, completeState, callback, callerName) {
    if (this.transaction.isInTransaction()) {
      ReactUpdateQueue.enqueueReplaceState(publicInstance, completeState, callback, callerName);
    } else {
      warnNoop(publicInstance, 'replaceState');
    }
  };

  /**
   * Sets a subset of the state. This only exists because _pendingState is
   * internal. This provides a merging strategy that is not available to deep
   * properties which is confusing. TODO: Expose pendingState or don't use it
   * during the merge.
   *
   * @param {ReactClass} publicInstance The instance that should rerender.
   * @param {object|function} partialState Next partial state to be merged with state.
   * @internal
   */


  ReactServerUpdateQueue.prototype.enqueueSetState = function enqueueSetState(publicInstance, partialState, callback, callerName) {
    if (this.transaction.isInTransaction()) {
      ReactUpdateQueue.enqueueSetState(publicInstance, partialState, callback, callerName);
    } else {
      warnNoop(publicInstance, 'setState');
    }
  };

  return ReactServerUpdateQueue;
}();

var ReactServerUpdateQueue_1 = ReactServerUpdateQueue$1;

var PooledClass$4 = PooledClass_1;
var Transaction = Transaction$1;
var ReactInstrumentation$9 = ReactInstrumentation$2;
var ReactServerUpdateQueue = ReactServerUpdateQueue_1;

/**
 * Executed within the scope of the `Transaction` instance. Consider these as
 * being member methods, but with an implied ordering while being isolated from
 * each other.
 */
var TRANSACTION_WRAPPERS = [];

if (__DEV__) {
  TRANSACTION_WRAPPERS.push({
    initialize: ReactInstrumentation$9.debugTool.onBeginFlush,
    close: ReactInstrumentation$9.debugTool.onEndFlush
  });
}

var noopCallbackQueue = {
  enqueue: function () {}
};

/**
 * @class ReactServerRenderingTransaction
 * @param {boolean} renderToStaticMarkup
 */
function ReactServerRenderingTransaction$1(renderToStaticMarkup) {
  this.reinitializeTransaction();
  this.renderToStaticMarkup = renderToStaticMarkup;
  this.useCreateElement = false;
  this.updateQueue = new ReactServerUpdateQueue(this);
}

var Mixin = {
  /**
   * @see Transaction
   * @abstract
   * @final
   * @return {array} Empty list of operation wrap procedures.
   */
  getTransactionWrappers: function () {
    return TRANSACTION_WRAPPERS;
  },

  /**
   * @return {object} The queue to collect `onDOMReady` callbacks with.
   */
  getReactMountReady: function () {
    return noopCallbackQueue;
  },

  /**
   * @return {object} The queue to collect React async events.
   */
  getUpdateQueue: function () {
    return this.updateQueue;
  },

  /**
   * `PooledClass` looks for this, and will invoke this before allowing this
   * instance to be reused.
   */
  destructor: function () {},

  checkpoint: function () {},

  rollback: function () {}
};

Object.assign(ReactServerRenderingTransaction$1.prototype, Transaction, Mixin);

PooledClass$4.addPoolingTo(ReactServerRenderingTransaction$1);

var ReactServerRenderingTransaction_1 = ReactServerRenderingTransaction$1;

var emptyFunction$5 = emptyFunction;
var getComponentName$4 = getComponentName_1;
var warning$25 = warning;

var validateDOMNesting$1 = emptyFunction$5;

if (__DEV__) {
  var _require$7 = ReactDebugCurrentFiber_1,
      getCurrentFiberStackAddendum$1 = _require$7.getCurrentFiberStackAddendum;

  // This validation code was written based on the HTML5 parsing spec:
  // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-scope
  //
  // Note: this does not catch all invalid nesting, nor does it try to (as it's
  // not clear what practical benefit doing so provides); instead, we warn only
  // for cases where the parser will give a parse tree differing from what React
  // intended. For example, <b><div></div></b> is invalid but we don't warn
  // because it still parses correctly; we do warn for other cases like nested
  // <p> tags where the beginning of the second element implicitly closes the
  // first, causing a confusing mess.

  // https://html.spec.whatwg.org/multipage/syntax.html#special


  var specialTags = ['address', 'applet', 'area', 'article', 'aside', 'base', 'basefont', 'bgsound', 'blockquote', 'body', 'br', 'button', 'caption', 'center', 'col', 'colgroup', 'dd', 'details', 'dir', 'div', 'dl', 'dt', 'embed', 'fieldset', 'figcaption', 'figure', 'footer', 'form', 'frame', 'frameset', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'header', 'hgroup', 'hr', 'html', 'iframe', 'img', 'input', 'isindex', 'li', 'link', 'listing', 'main', 'marquee', 'menu', 'menuitem', 'meta', 'nav', 'noembed', 'noframes', 'noscript', 'object', 'ol', 'p', 'param', 'plaintext', 'pre', 'script', 'section', 'select', 'source', 'style', 'summary', 'table', 'tbody', 'td', 'template', 'textarea', 'tfoot', 'th', 'thead', 'title', 'tr', 'track', 'ul', 'wbr', 'xmp'];

  // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-scope
  var inScopeTags = ['applet', 'caption', 'html', 'table', 'td', 'th', 'marquee', 'object', 'template',

  // https://html.spec.whatwg.org/multipage/syntax.html#html-integration-point
  // TODO: Distinguish by namespace here -- for <title>, including it here
  // errs on the side of fewer warnings
  'foreignObject', 'desc', 'title'];

  // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-button-scope
  var buttonScopeTags = inScopeTags.concat(['button']);

  // https://html.spec.whatwg.org/multipage/syntax.html#generate-implied-end-tags
  var impliedEndTags = ['dd', 'dt', 'li', 'option', 'optgroup', 'p', 'rp', 'rt'];

  var emptyAncestorInfo = {
    current: null,

    formTag: null,
    aTagInScope: null,
    buttonTagInScope: null,
    nobrTagInScope: null,
    pTagInButtonScope: null,

    listItemTagAutoclosing: null,
    dlItemTagAutoclosing: null
  };

  var updatedAncestorInfo = function (oldInfo, tag, instance) {
    var ancestorInfo = Object.assign({}, oldInfo || emptyAncestorInfo);
    var info = { tag: tag, instance: instance };

    if (inScopeTags.indexOf(tag) !== -1) {
      ancestorInfo.aTagInScope = null;
      ancestorInfo.buttonTagInScope = null;
      ancestorInfo.nobrTagInScope = null;
    }
    if (buttonScopeTags.indexOf(tag) !== -1) {
      ancestorInfo.pTagInButtonScope = null;
    }

    // See rules for 'li', 'dd', 'dt' start tags in
    // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inbody
    if (specialTags.indexOf(tag) !== -1 && tag !== 'address' && tag !== 'div' && tag !== 'p') {
      ancestorInfo.listItemTagAutoclosing = null;
      ancestorInfo.dlItemTagAutoclosing = null;
    }

    ancestorInfo.current = info;

    if (tag === 'form') {
      ancestorInfo.formTag = info;
    }
    if (tag === 'a') {
      ancestorInfo.aTagInScope = info;
    }
    if (tag === 'button') {
      ancestorInfo.buttonTagInScope = info;
    }
    if (tag === 'nobr') {
      ancestorInfo.nobrTagInScope = info;
    }
    if (tag === 'p') {
      ancestorInfo.pTagInButtonScope = info;
    }
    if (tag === 'li') {
      ancestorInfo.listItemTagAutoclosing = info;
    }
    if (tag === 'dd' || tag === 'dt') {
      ancestorInfo.dlItemTagAutoclosing = info;
    }

    return ancestorInfo;
  };

  /**
   * Returns whether
   */
  var isTagValidWithParent = function (tag, parentTag) {
    // First, let's check if we're in an unusual parsing mode...
    switch (parentTag) {
      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inselect
      case 'select':
        return tag === 'option' || tag === 'optgroup' || tag === '#text';
      case 'optgroup':
        return tag === 'option' || tag === '#text';
      // Strictly speaking, seeing an <option> doesn't mean we're in a <select>
      // but
      case 'option':
        return tag === '#text';

      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intd
      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-incaption
      // No special behavior since these rules fall back to "in body" mode for
      // all except special table nodes which cause bad parsing behavior anyway.

      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intr
      case 'tr':
        return tag === 'th' || tag === 'td' || tag === 'style' || tag === 'script' || tag === 'template';

      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intbody
      case 'tbody':
      case 'thead':
      case 'tfoot':
        return tag === 'tr' || tag === 'style' || tag === 'script' || tag === 'template';

      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-incolgroup
      case 'colgroup':
        return tag === 'col' || tag === 'template';

      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intable
      case 'table':
        return tag === 'caption' || tag === 'colgroup' || tag === 'tbody' || tag === 'tfoot' || tag === 'thead' || tag === 'style' || tag === 'script' || tag === 'template';

      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inhead
      case 'head':
        return tag === 'base' || tag === 'basefont' || tag === 'bgsound' || tag === 'link' || tag === 'meta' || tag === 'title' || tag === 'noscript' || tag === 'noframes' || tag === 'style' || tag === 'script' || tag === 'template';

      // https://html.spec.whatwg.org/multipage/semantics.html#the-html-element
      case 'html':
        return tag === 'head' || tag === 'body';
      case '#document':
        return tag === 'html';
    }

    // Probably in the "in body" parsing mode, so we outlaw only tag combos
    // where the parsing rules cause implicit opens or closes to be added.
    // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inbody
    switch (tag) {
      case 'h1':
      case 'h2':
      case 'h3':
      case 'h4':
      case 'h5':
      case 'h6':
        return parentTag !== 'h1' && parentTag !== 'h2' && parentTag !== 'h3' && parentTag !== 'h4' && parentTag !== 'h5' && parentTag !== 'h6';

      case 'rp':
      case 'rt':
        return impliedEndTags.indexOf(parentTag) === -1;

      case 'body':
      case 'caption':
      case 'col':
      case 'colgroup':
      case 'frame':
      case 'head':
      case 'html':
      case 'tbody':
      case 'td':
      case 'tfoot':
      case 'th':
      case 'thead':
      case 'tr':
        // These tags are only valid with a few parents that have special child
        // parsing rules -- if we're down here, then none of those matched and
        // so we allow it only if we don't know what the parent is, as all other
        // cases are invalid.
        return parentTag == null;
    }

    return true;
  };

  /**
   * Returns whether
   */
  var findInvalidAncestorForTag = function (tag, ancestorInfo) {
    switch (tag) {
      case 'address':
      case 'article':
      case 'aside':
      case 'blockquote':
      case 'center':
      case 'details':
      case 'dialog':
      case 'dir':
      case 'div':
      case 'dl':
      case 'fieldset':
      case 'figcaption':
      case 'figure':
      case 'footer':
      case 'header':
      case 'hgroup':
      case 'main':
      case 'menu':
      case 'nav':
      case 'ol':
      case 'p':
      case 'section':
      case 'summary':
      case 'ul':
      case 'pre':
      case 'listing':
      case 'table':
      case 'hr':
      case 'xmp':
      case 'h1':
      case 'h2':
      case 'h3':
      case 'h4':
      case 'h5':
      case 'h6':
        return ancestorInfo.pTagInButtonScope;

      case 'form':
        return ancestorInfo.formTag || ancestorInfo.pTagInButtonScope;

      case 'li':
        return ancestorInfo.listItemTagAutoclosing;

      case 'dd':
      case 'dt':
        return ancestorInfo.dlItemTagAutoclosing;

      case 'button':
        return ancestorInfo.buttonTagInScope;

      case 'a':
        // Spec says something about storing a list of markers, but it sounds
        // equivalent to this check.
        return ancestorInfo.aTagInScope;

      case 'nobr':
        return ancestorInfo.nobrTagInScope;
    }

    return null;
  };

  /**
   * Given a ReactCompositeComponent instance, return a list of its recursive
   * owners, starting at the root and ending with the instance itself.
   */
  var findOwnerStack = function (instance) {
    if (!instance) {
      return [];
    }

    var stack = [];
    do {
      stack.push(instance);
    } while (instance = instance._currentElement._owner);
    stack.reverse();
    return stack;
  };

  var getOwnerInfo = function (childInstance, childTag, ancestorInstance, ancestorTag, isParent) {
    var childOwner = childInstance && childInstance._currentElement._owner;
    var ancestorOwner = ancestorInstance && ancestorInstance._currentElement._owner;

    var childOwners = findOwnerStack(childOwner);
    var ancestorOwners = findOwnerStack(ancestorOwner);

    var minStackLen = Math.min(childOwners.length, ancestorOwners.length);
    var i;

    var deepestCommon = -1;
    for (i = 0; i < minStackLen; i++) {
      if (childOwners[i] === ancestorOwners[i]) {
        deepestCommon = i;
      } else {
        break;
      }
    }

    var UNKNOWN = '(unknown)';
    var childOwnerNames = childOwners.slice(deepestCommon + 1).map(function (inst) {
      return getComponentName$4(inst) || UNKNOWN;
    });
    var ancestorOwnerNames = ancestorOwners.slice(deepestCommon + 1).map(function (inst) {
      return getComponentName$4(inst) || UNKNOWN;
    });
    var ownerInfo = [].concat(
    // If the parent and child instances have a common owner ancestor, start
    // with that -- otherwise we just start with the parent's owners.
    deepestCommon !== -1 ? getComponentName$4(childOwners[deepestCommon]) || UNKNOWN : [], ancestorOwnerNames, ancestorTag,
    // If we're warning about an invalid (non-parent) ancestry, add '...'
    isParent ? [] : ['...'], childOwnerNames, childTag).join(' > ');

    return ownerInfo;
  };

  var didWarn = {};

  validateDOMNesting$1 = function (childTag, childText, childInstance, ancestorInfo) {
    ancestorInfo = ancestorInfo || emptyAncestorInfo;
    var parentInfo = ancestorInfo.current;
    var parentTag = parentInfo && parentInfo.tag;

    if (childText != null) {
      warning$25(childTag == null, 'validateDOMNesting: when childText is passed, childTag should be null');
      childTag = '#text';
    }

    var invalidParent = isTagValidWithParent(childTag, parentTag) ? null : parentInfo;
    var invalidAncestor = invalidParent ? null : findInvalidAncestorForTag(childTag, ancestorInfo);
    var invalidParentOrAncestor = invalidParent || invalidAncestor;
    if (!invalidParentOrAncestor) {
      return;
    }

    var ancestorInstance = invalidParentOrAncestor.instance;
    var ancestorTag = invalidParentOrAncestor.tag;
    var addendum;

    if (childInstance != null) {
      addendum = ' See ' + getOwnerInfo(childInstance, childTag, ancestorInstance, ancestorTag, !!invalidParent) + '.';
    } else {
      addendum = getCurrentFiberStackAddendum$1();
    }

    var warnKey = !!invalidParent + '|' + childTag + '|' + ancestorTag + '|' + addendum;
    if (didWarn[warnKey]) {
      return;
    }
    didWarn[warnKey] = true;

    var tagDisplayName = childTag;
    var whitespaceInfo = '';
    if (childTag === '#text') {
      if (/\S/.test(childText)) {
        tagDisplayName = 'Text nodes';
      } else {
        tagDisplayName = 'Whitespace text nodes';
        whitespaceInfo = ' Make sure you don\'t have any extra whitespace between tags on ' + 'each line of your source code.';
      }
    } else {
      tagDisplayName = '<' + childTag + '>';
    }

    if (invalidParent) {
      var info = '';
      if (ancestorTag === 'table' && childTag === 'tr') {
        info += ' Add a <tbody> to your code to match the DOM tree generated by ' + 'the browser.';
      }
      warning$25(false, 'validateDOMNesting(...): %s cannot appear as a child of <%s>.%s%s%s', tagDisplayName, ancestorTag, whitespaceInfo, info, addendum);
    } else {
      warning$25(false, 'validateDOMNesting(...): %s cannot appear as a descendant of ' + '<%s>.%s', tagDisplayName, ancestorTag, addendum);
    }
  };

  validateDOMNesting$1.updatedAncestorInfo = updatedAncestorInfo;

  // For testing
  validateDOMNesting$1.isTagValidInContext = function (tag, ancestorInfo) {
    ancestorInfo = ancestorInfo || emptyAncestorInfo;
    var parentInfo = ancestorInfo.current;
    var parentTag = parentInfo && parentInfo.tag;
    return isTagValidWithParent(tag, parentTag) && !findInvalidAncestorForTag(tag, ancestorInfo);
  };
}

var validateDOMNesting_1 = validateDOMNesting$1;

var AutoFocusUtils = AutoFocusUtils_1;
var CSSPropertyOperations = CSSPropertyOperations_1;
var DOMLazyTree$3 = DOMLazyTree_1;
var DOMNamespaces$3 = DOMNamespaces_1;
var DOMProperty$4 = DOMProperty_1;
var DOMPropertyOperations = DOMPropertyOperations_1;
var EventPluginRegistry$3 = EventPluginRegistry_1;
var ReactBrowserEventEmitter$3 = ReactBrowserEventEmitter_1;
var ReactDOMComponentFlags$2 = ReactDOMComponentFlags_1;
var ReactDOMComponentTree$11 = ReactDOMComponentTree_1;
var ReactDOMInput = ReactDOMInput_1;
var ReactDOMOption = ReactDOMOption_1;
var ReactDOMSelect = ReactDOMSelect_1;
var ReactDOMTextarea = ReactDOMTextarea_1;
var ReactInstrumentation$4 = ReactInstrumentation$2;
var ReactMultiChild = ReactMultiChild_1;
var ReactServerRenderingTransaction = ReactServerRenderingTransaction_1;

var emptyFunction$3 = emptyFunction;
var escapeTextContentForBrowser$2 = escapeTextContentForBrowser_1;
var invariant$12 = invariant;
var isEventSupported$3 = isEventSupported_1;
var inputValueTracking$2 = inputValueTracking_1;
var validateDOMNesting = validateDOMNesting_1;
var warning$7 = warning;
var didWarnShadyDOM = false;

var Flags$1 = ReactDOMComponentFlags$2;
var getNode = ReactDOMComponentTree$11.getNodeFromInstance;
var listenTo = ReactBrowserEventEmitter$3.listenTo;
var registrationNameModules = EventPluginRegistry$3.registrationNameModules;

// For quickly matching children type, to test if can be treated as content.
var CONTENT_TYPES = { 'string': true, 'number': true };

var STYLE = 'style';
var HTML = '__html';
var RESERVED_PROPS = {
  children: null,
  dangerouslySetInnerHTML: null,
  suppressContentEditableWarning: null
};

// Node type for document fragments (Node.DOCUMENT_FRAGMENT_NODE).
var DOC_FRAGMENT_TYPE = 11;

function getDeclarationErrorAddendum(internalInstance) {
  if (internalInstance) {
    var owner = internalInstance._currentElement._owner || null;
    if (owner) {
      var name = owner.getName();
      if (name) {
        return '\n\nThis DOM node was rendered by `' + name + '`.';
      }
    }
  }
  return '';
}

/**
 * @param {object} component
 * @param {?object} props
 */
function assertValidProps(component, props) {
  if (!props) {
    return;
  }
  // Note the use of `==` which checks for null or undefined.
  if (voidElementTags[component._tag]) {
    invariant$12(props.children == null && props.dangerouslySetInnerHTML == null, '%s is a void element tag and must neither have `children` nor ' + 'use `dangerouslySetInnerHTML`.%s', component._tag, getDeclarationErrorAddendum(component));
  }
  if (props.dangerouslySetInnerHTML != null) {
    invariant$12(props.children == null, 'Can only set one of `children` or `props.dangerouslySetInnerHTML`.');
    invariant$12(typeof props.dangerouslySetInnerHTML === 'object' && HTML in props.dangerouslySetInnerHTML, '`props.dangerouslySetInnerHTML` must be in the form `{__html: ...}`. ' + 'Please visit https://fb.me/react-invariant-dangerously-set-inner-html ' + 'for more information.');
  }
  if (__DEV__) {
    warning$7(props.innerHTML == null, 'Directly setting property `innerHTML` is not permitted. ' + 'For more information, lookup documentation on `dangerouslySetInnerHTML`.');
    warning$7(props.suppressContentEditableWarning || !props.contentEditable || props.children == null, 'A component is `contentEditable` and contains `children` managed by ' + 'React. It is now your responsibility to guarantee that none of ' + 'those nodes are unexpectedly modified or duplicated. This is ' + 'probably not intentional.');
    warning$7(props.onFocusIn == null && props.onFocusOut == null, 'React uses onFocus and onBlur instead of onFocusIn and onFocusOut. ' + 'All React events are normalized to bubble, so onFocusIn and onFocusOut ' + 'are not needed/supported by React.');
  }
  invariant$12(props.style == null || typeof props.style === 'object', 'The `style` prop expects a mapping from style properties to values, ' + 'not a string. For example, style={{marginRight: spacing + \'em\'}} when ' + 'using JSX.%s', getDeclarationErrorAddendum(component));
}

function ensureListeningTo(inst, registrationName, transaction) {
  if (transaction instanceof ReactServerRenderingTransaction) {
    return;
  }
  if (__DEV__) {
    // IE8 has no API for event capturing and the `onScroll` event doesn't
    // bubble.
    warning$7(registrationName !== 'onScroll' || isEventSupported$3('scroll', true), 'This browser doesn\'t support the `onScroll` event');
  }
  var containerInfo = inst._hostContainerInfo;
  var isDocumentFragment = containerInfo._node && containerInfo._node.nodeType === DOC_FRAGMENT_TYPE;
  var doc = isDocumentFragment ? containerInfo._node : containerInfo._ownerDocument;
  listenTo(registrationName, doc);
}

function inputPostMount() {
  var inst = this;
  ReactDOMInput.postMountWrapper(inst);
}

function textareaPostMount() {
  var inst = this;
  ReactDOMTextarea.postMountWrapper(inst);
}

function optionPostMount() {
  var inst = this;
  ReactDOMOption.postMountWrapper(inst);
}

var setAndValidateContentChildDev = emptyFunction$3;
if (__DEV__) {
  setAndValidateContentChildDev = function (content) {
    var hasExistingContent = this._contentDebugID != null;
    var debugID = this._debugID;
    // This ID represents the inlined child that has no backing instance:
    var contentDebugID = -debugID;

    if (content == null) {
      if (hasExistingContent) {
        ReactInstrumentation$4.debugTool.onUnmountComponent(this._contentDebugID);
      }
      this._contentDebugID = null;
      return;
    }

    validateDOMNesting(null, '' + content, this, this._ancestorInfo);
    this._contentDebugID = contentDebugID;
    if (hasExistingContent) {
      ReactInstrumentation$4.debugTool.onBeforeUpdateComponent(contentDebugID, content);
      ReactInstrumentation$4.debugTool.onUpdateComponent(contentDebugID);
    } else {
      ReactInstrumentation$4.debugTool.onBeforeMountComponent(contentDebugID, content, debugID);
      ReactInstrumentation$4.debugTool.onMountComponent(contentDebugID);
      ReactInstrumentation$4.debugTool.onSetChildren(debugID, [contentDebugID]);
    }
  };
}

// There are so many media events, it makes sense to just
// maintain a list rather than create a `trapBubbledEvent` for each
var mediaEvents = {
  topAbort: 'abort',
  topCanPlay: 'canplay',
  topCanPlayThrough: 'canplaythrough',
  topDurationChange: 'durationchange',
  topEmptied: 'emptied',
  topEncrypted: 'encrypted',
  topEnded: 'ended',
  topError: 'error',
  topLoadedData: 'loadeddata',
  topLoadedMetadata: 'loadedmetadata',
  topLoadStart: 'loadstart',
  topPause: 'pause',
  topPlay: 'play',
  topPlaying: 'playing',
  topProgress: 'progress',
  topRateChange: 'ratechange',
  topSeeked: 'seeked',
  topSeeking: 'seeking',
  topStalled: 'stalled',
  topSuspend: 'suspend',
  topTimeUpdate: 'timeupdate',
  topVolumeChange: 'volumechange',
  topWaiting: 'waiting'
};

function trackInputValue() {
  inputValueTracking$2.track(this);
}

function trapClickOnNonInteractiveElement() {
  // Mobile Safari does not fire properly bubble click events on
  // non-interactive elements, which means delegated click listeners do not
  // fire. The workaround for this bug involves attaching an empty click
  // listener on the target node.
  // http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html
  // Just set it using the onclick property so that we don't have to manage any
  // bookkeeping for it. Not sure if we need to clear it when the listener is
  // removed.
  // TODO: Only do this for the relevant Safaris maybe?
  var node = getNode(this);
  node.onclick = emptyFunction$3;
}

function trapBubbledEventsLocal() {
  var inst = this;
  // If a component renders to null or if another component fatals and causes
  // the state of the tree to be corrupted, `node` here can be null.
  invariant$12(inst._rootNodeID, 'Must be mounted to trap events');
  var node = getNode(inst);
  invariant$12(node, 'trapBubbledEvent(...): Requires node to be rendered.');

  switch (inst._tag) {
    case 'iframe':
    case 'object':
      inst._wrapperState.listeners = [ReactBrowserEventEmitter$3.trapBubbledEvent('topLoad', 'load', node)];
      break;
    case 'video':
    case 'audio':

      inst._wrapperState.listeners = [];
      // Create listener for each media event
      for (var event in mediaEvents) {
        if (mediaEvents.hasOwnProperty(event)) {
          inst._wrapperState.listeners.push(ReactBrowserEventEmitter$3.trapBubbledEvent(event, mediaEvents[event], node));
        }
      }
      break;
    case 'source':
      inst._wrapperState.listeners = [ReactBrowserEventEmitter$3.trapBubbledEvent('topError', 'error', node)];
      break;
    case 'img':
    case 'image':
      inst._wrapperState.listeners = [ReactBrowserEventEmitter$3.trapBubbledEvent('topError', 'error', node), ReactBrowserEventEmitter$3.trapBubbledEvent('topLoad', 'load', node)];
      break;
    case 'form':
      inst._wrapperState.listeners = [ReactBrowserEventEmitter$3.trapBubbledEvent('topReset', 'reset', node), ReactBrowserEventEmitter$3.trapBubbledEvent('topSubmit', 'submit', node)];
      break;
    case 'input':
    case 'select':
    case 'textarea':
      inst._wrapperState.listeners = [ReactBrowserEventEmitter$3.trapBubbledEvent('topInvalid', 'invalid', node)];
      break;
    case 'details':
      inst._wrapperState.listeners = [ReactBrowserEventEmitter$3.trapBubbledEvent('topToggle', 'toggle', node)];
      break;
  }
}

function postUpdateSelectWrapper() {
  ReactDOMSelect.postUpdateWrapper(this);
}

// For HTML, certain tags should omit their close tag. We keep a whitelist for
// those special-case tags.

var omittedCloseTags = {
  'area': true,
  'base': true,
  'br': true,
  'col': true,
  'embed': true,
  'hr': true,
  'img': true,
  'input': true,
  'keygen': true,
  'link': true,
  'meta': true,
  'param': true,
  'source': true,
  'track': true,
  'wbr': true
};

var newlineEatingTags = {
  'listing': true,
  'pre': true,
  'textarea': true
};

// For HTML, certain tags cannot have children. This has the same purpose as
// `omittedCloseTags` except that `menuitem` should still have its closing tag.

var voidElementTags = Object.assign({
  'menuitem': true
}, omittedCloseTags);

// We accept any tag to be rendered but since this gets injected into arbitrary
// HTML, we want to make sure that it's a safe tag.
// http://www.w3.org/TR/REC-xml/#NT-Name

var VALID_TAG_REGEX = /^[a-zA-Z][a-zA-Z:_\.\-\d]*$/; // Simplified subset
var validatedTagCache = {};
var hasOwnProperty = {}.hasOwnProperty;

function validateDangerousTag(tag) {
  if (!hasOwnProperty.call(validatedTagCache, tag)) {
    invariant$12(VALID_TAG_REGEX.test(tag), 'Invalid tag: %s', tag);
    validatedTagCache[tag] = true;
  }
}

function isCustomComponent(tagName, props) {
  return tagName.indexOf('-') >= 0 || props.is != null;
}

var globalIdCounter = 1;

/**
 * Creates a new React class that is idempotent and capable of containing other
 * React components. It accepts event listeners and DOM properties that are
 * valid according to `DOMProperty`.
 *
 *  - Event listeners: `onClick`, `onMouseDown`, etc.
 *  - DOM properties: `className`, `name`, `title`, etc.
 *
 * The `style` property functions differently from the DOM API. It accepts an
 * object mapping of style properties to values.
 *
 * @constructor ReactDOMComponent
 * @extends ReactMultiChild
 */
function ReactDOMComponent$1(element) {
  var tag = element.type;
  this._currentElement = element;
  this._tag = tag.toLowerCase();
  this._namespaceURI = null;
  this._renderedChildren = null;
  this._hostNode = null;
  this._hostParent = null;
  this._rootNodeID = 0;
  this._domID = 0;
  this._hostContainerInfo = null;
  this._wrapperState = null;
  this._topLevelWrapper = null;
  this._flags = 0;
  if (__DEV__) {
    this._ancestorInfo = null;
    setAndValidateContentChildDev.call(this, null);
  }
}

ReactDOMComponent$1.displayName = 'ReactDOMComponent';

ReactDOMComponent$1.Mixin = {

  /**
   * Generates root tag markup then recurses. This method has side effects and
   * is not idempotent.
   *
   * @internal
   * @param {ReactReconcileTransaction|ReactServerRenderingTransaction} transaction
   * @param {?ReactDOMComponent} the parent component instance
   * @param {?object} info about the host container
   * @param {object} context
   * @return {string} The computed markup.
   */
  mountComponent: function (transaction, hostParent, hostContainerInfo, context) {
    this._rootNodeID = globalIdCounter++;
    this._domID = hostContainerInfo._idCounter++;
    this._hostParent = hostParent;
    this._hostContainerInfo = hostContainerInfo;

    var props = this._currentElement.props;

    switch (this._tag) {
      case 'audio':
      case 'form':
      case 'iframe':
      case 'img':
      case 'image':
      case 'link':
      case 'object':
      case 'source':
      case 'video':
      case 'details':
        this._wrapperState = {
          listeners: null
        };
        transaction.getReactMountReady().enqueue(trapBubbledEventsLocal, this);
        break;
      case 'input':
        ReactDOMInput.mountWrapper(this, props, hostParent);
        props = ReactDOMInput.getHostProps(this, props);
        transaction.getReactMountReady().enqueue(trackInputValue, this);
        transaction.getReactMountReady().enqueue(trapBubbledEventsLocal, this);
        // For controlled components we always need to ensure we're listening
        // to onChange. Even if there is no listener.
        ensureListeningTo(this, 'onChange', transaction);
        break;
      case 'option':
        ReactDOMOption.mountWrapper(this, props, hostParent);
        props = ReactDOMOption.getHostProps(this, props);
        break;
      case 'select':
        ReactDOMSelect.mountWrapper(this, props, hostParent);
        props = ReactDOMSelect.getHostProps(this, props);
        transaction.getReactMountReady().enqueue(trapBubbledEventsLocal, this);
        // For controlled components we always need to ensure we're listening
        // to onChange. Even if there is no listener.
        ensureListeningTo(this, 'onChange', transaction);
        break;
      case 'textarea':
        ReactDOMTextarea.mountWrapper(this, props, hostParent);
        props = ReactDOMTextarea.getHostProps(this, props);
        transaction.getReactMountReady().enqueue(trackInputValue, this);
        transaction.getReactMountReady().enqueue(trapBubbledEventsLocal, this);
        // For controlled components we always need to ensure we're listening
        // to onChange. Even if there is no listener.
        ensureListeningTo(this, 'onChange', transaction);
        break;
    }

    assertValidProps(this, props);

    // We create tags in the namespace of their parent container, except HTML
    // tags get no namespace.
    var namespaceURI;
    var parentTag;
    if (hostParent != null) {
      namespaceURI = hostParent._namespaceURI;
      parentTag = hostParent._tag;
    } else if (hostContainerInfo._tag) {
      namespaceURI = hostContainerInfo._namespaceURI;
      parentTag = hostContainerInfo._tag;
    }
    if (namespaceURI == null || namespaceURI === DOMNamespaces$3.svg && parentTag === 'foreignobject') {
      namespaceURI = DOMNamespaces$3.html;
    }
    if (namespaceURI === DOMNamespaces$3.html) {
      if (__DEV__) {
        warning$7(isCustomComponent(this._tag, props) || this._tag === this._currentElement.type, '<%s /> is using uppercase HTML. Always use lowercase HTML tags ' + 'in React.', this._currentElement.type);
      }
      if (this._tag === 'svg') {
        namespaceURI = DOMNamespaces$3.svg;
      } else if (this._tag === 'math') {
        namespaceURI = DOMNamespaces$3.mathml;
      }
    }
    this._namespaceURI = namespaceURI;

    if (__DEV__) {
      var parentInfo;
      if (hostParent != null) {
        parentInfo = hostParent._ancestorInfo;
      } else if (hostContainerInfo._tag) {
        parentInfo = hostContainerInfo._ancestorInfo;
      }
      if (parentInfo) {
        // parentInfo should always be present except for the top-level
        // component when server rendering
        validateDOMNesting(this._tag, null, this, parentInfo);
      }
      this._ancestorInfo = validateDOMNesting.updatedAncestorInfo(parentInfo, this._tag, this);
    }

    var mountImage;
    var type = this._currentElement.type;
    if (transaction.useCreateElement) {
      var ownerDocument = hostContainerInfo._ownerDocument;
      var el;
      if (namespaceURI === DOMNamespaces$3.html) {
        if (this._tag === 'script') {
          // Create the script via .innerHTML so its "parser-inserted" flag is
          // set to true and it does not execute
          var div = ownerDocument.createElement('div');
          div.innerHTML = '<' + type + '></' + type + '>';
          el = div.removeChild(div.firstChild);
        } else if (props.is) {
          el = ownerDocument.createElement(type, props.is);
        } else {
          // Separate else branch instead of using `props.is || undefined` above because of a Firefox bug.
          // See discussion in https://github.com/facebook/react/pull/6896
          // and discussion in https://bugzilla.mozilla.org/show_bug.cgi?id=1276240
          el = ownerDocument.createElement(type);
        }
      } else {
        el = ownerDocument.createElementNS(namespaceURI, type);
      }
      var isCustomComponentTag = isCustomComponent(this._tag, props);
      if (__DEV__ && isCustomComponentTag && !didWarnShadyDOM && el.shadyRoot) {
        var owner = this._currentElement._owner;
        var name = owner && owner.getName() || 'A component';
        warning$7(false, '%s is using shady DOM. Using shady DOM with React can ' + 'cause things to break subtly.', name);
        didWarnShadyDOM = true;
      }
      ReactDOMComponentTree$11.precacheNode(this, el);
      this._flags |= Flags$1.hasCachedChildNodes;
      if (!this._hostParent) {
        DOMPropertyOperations.setAttributeForRoot(el);
      }
      this._updateDOMProperties(null, props, transaction, isCustomComponentTag);
      var lazyTree = DOMLazyTree$3(el);
      this._createInitialChildren(transaction, props, context, lazyTree);
      mountImage = lazyTree;
    } else {
      validateDangerousTag(this._tag);
      var tagOpen = this._createOpenTagMarkupAndPutListeners(transaction, props);
      var tagContent = this._createContentMarkup(transaction, props, context);
      if (!tagContent && omittedCloseTags[this._tag]) {
        mountImage = tagOpen + '/>';
      } else {
        mountImage = tagOpen + '>' + tagContent + '</' + type + '>';
      }
    }

    switch (this._tag) {
      case 'input':
        transaction.getReactMountReady().enqueue(inputPostMount, this);
        if (props.autoFocus) {
          transaction.getReactMountReady().enqueue(AutoFocusUtils.focusDOMComponent, this);
        }
        break;
      case 'textarea':
        transaction.getReactMountReady().enqueue(textareaPostMount, this);
        if (props.autoFocus) {
          transaction.getReactMountReady().enqueue(AutoFocusUtils.focusDOMComponent, this);
        }
        break;
      case 'select':
        if (props.autoFocus) {
          transaction.getReactMountReady().enqueue(AutoFocusUtils.focusDOMComponent, this);
        }
        break;
      case 'button':
        if (props.autoFocus) {
          transaction.getReactMountReady().enqueue(AutoFocusUtils.focusDOMComponent, this);
        }
        break;
      case 'option':
        transaction.getReactMountReady().enqueue(optionPostMount, this);
        break;
      default:
        if (typeof props.onClick === 'function') {
          transaction.getReactMountReady().enqueue(trapClickOnNonInteractiveElement, this);
        }
        break;
    }

    return mountImage;
  },

  /**
   * Creates markup for the open tag and all attributes.
   *
   * This method has side effects because events get registered.
   *
   * Iterating over object properties is faster than iterating over arrays.
   * @see http://jsperf.com/obj-vs-arr-iteration
   *
   * @private
   * @param {ReactReconcileTransaction|ReactServerRenderingTransaction} transaction
   * @param {object} props
   * @return {string} Markup of opening tag.
   */
  _createOpenTagMarkupAndPutListeners: function (transaction, props) {
    var ret = '<' + this._currentElement.type;

    for (var propKey in props) {
      if (!props.hasOwnProperty(propKey)) {
        continue;
      }
      var propValue = props[propKey];
      if (propValue == null) {
        continue;
      }
      if (registrationNameModules.hasOwnProperty(propKey)) {
        if (propValue) {
          ensureListeningTo(this, propKey, transaction);
        }
      } else {
        if (propKey === STYLE) {
          if (propValue) {
            if (__DEV__) {
              Object.freeze(propValue);
            }
          }
          propValue = CSSPropertyOperations.createMarkupForStyles(propValue, this);
        }
        var markup = null;
        if (this._tag != null && isCustomComponent(this._tag, props)) {
          if (!RESERVED_PROPS.hasOwnProperty(propKey)) {
            markup = DOMPropertyOperations.createMarkupForCustomAttribute(propKey, propValue);
          }
        } else {
          markup = DOMPropertyOperations.createMarkupForProperty(propKey, propValue);
        }
        if (markup) {
          ret += ' ' + markup;
        }
      }
    }

    // For static pages, no need to put React ID and checksum. Saves lots of
    // bytes.
    if (transaction.renderToStaticMarkup) {
      return ret;
    }

    if (!this._hostParent) {
      ret += ' ' + DOMPropertyOperations.createMarkupForRoot();
    }
    ret += ' ' + DOMPropertyOperations.createMarkupForID(this._domID);
    return ret;
  },

  /**
   * Creates markup for the content between the tags.
   *
   * @private
   * @param {ReactReconcileTransaction|ReactServerRenderingTransaction} transaction
   * @param {object} props
   * @param {object} context
   * @return {string} Content markup.
   */
  _createContentMarkup: function (transaction, props, context) {
    var ret = '';

    // Intentional use of != to avoid catching zero/false.
    var innerHTML = props.dangerouslySetInnerHTML;
    if (innerHTML != null) {
      if (innerHTML.__html != null) {
        ret = innerHTML.__html;
      }
    } else {
      var contentToUse = CONTENT_TYPES[typeof props.children] ? props.children : null;
      var childrenToUse = contentToUse != null ? null : props.children;
      if (contentToUse != null) {
        // TODO: Validate that text is allowed as a child of this node
        ret = escapeTextContentForBrowser$2(contentToUse);
        if (__DEV__) {
          setAndValidateContentChildDev.call(this, contentToUse);
        }
      } else if (childrenToUse != null) {
        var mountImages = this.mountChildren(childrenToUse, transaction, context);
        ret = mountImages.join('');
      }
    }
    if (newlineEatingTags[this._tag] && ret.charAt(0) === '\n') {
      // text/html ignores the first character in these tags if it's a newline
      // Prefer to break application/xml over text/html (for now) by adding
      // a newline specifically to get eaten by the parser. (Alternately for
      // textareas, replacing "^\n" with "\r\n" doesn't get eaten, and the first
      // \r is normalized out by HTMLTextAreaElement#value.)
      // See: <http://www.w3.org/TR/html-polyglot/#newlines-in-textarea-and-pre>
      // See: <http://www.w3.org/TR/html5/syntax.html#element-restrictions>
      // See: <http://www.w3.org/TR/html5/syntax.html#newlines>
      // See: Parsing of "textarea" "listing" and "pre" elements
      //  from <http://www.w3.org/TR/html5/syntax.html#parsing-main-inbody>
      return '\n' + ret;
    } else {
      return ret;
    }
  },

  _createInitialChildren: function (transaction, props, context, lazyTree) {
    // Intentional use of != to avoid catching zero/false.
    var innerHTML = props.dangerouslySetInnerHTML;
    if (innerHTML != null) {
      var innerHTMLContent = innerHTML.__html;
      if (innerHTMLContent != null && innerHTMLContent !== '') {
        DOMLazyTree$3.queueHTML(lazyTree, innerHTMLContent);
      }
    } else {
      var contentToUse = CONTENT_TYPES[typeof props.children] ? props.children : null;
      var childrenToUse = contentToUse != null ? null : props.children;
      // TODO: Validate that text is allowed as a child of this node
      if (contentToUse != null) {
        // Avoid setting textContent when the text is empty. In IE11 setting
        // textContent on a text area will cause the placeholder to not
        // show within the textarea until it has been focused and blurred again.
        // https://github.com/facebook/react/issues/6731#issuecomment-254874553
        if (contentToUse !== '') {
          if (__DEV__) {
            setAndValidateContentChildDev.call(this, contentToUse);
          }
          DOMLazyTree$3.queueText(lazyTree, contentToUse);
        }
      } else if (childrenToUse != null) {
        var mountImages = this.mountChildren(childrenToUse, transaction, context);
        for (var i = 0; i < mountImages.length; i++) {
          DOMLazyTree$3.queueChild(lazyTree, mountImages[i]);
        }
      }
    }
  },

  /**
   * Receives a next element and updates the component.
   *
   * @internal
   * @param {ReactElement} nextElement
   * @param {ReactReconcileTransaction|ReactServerRenderingTransaction} transaction
   * @param {object} context
   */
  receiveComponent: function (nextElement, transaction, context) {
    var prevElement = this._currentElement;
    this._currentElement = nextElement;
    this.updateComponent(transaction, prevElement, nextElement, context);
  },

  /**
   * Updates a DOM component after it has already been allocated and
   * attached to the DOM. Reconciles the root DOM node, then recurses.
   *
   * @param {ReactReconcileTransaction} transaction
   * @param {ReactElement} prevElement
   * @param {ReactElement} nextElement
   * @internal
   * @overridable
   */
  updateComponent: function (transaction, prevElement, nextElement, context) {
    var lastProps = prevElement.props;
    var nextProps = this._currentElement.props;

    switch (this._tag) {
      case 'input':
        lastProps = ReactDOMInput.getHostProps(this, lastProps);
        nextProps = ReactDOMInput.getHostProps(this, nextProps);
        break;
      case 'option':
        lastProps = ReactDOMOption.getHostProps(this, lastProps);
        nextProps = ReactDOMOption.getHostProps(this, nextProps);
        break;
      case 'select':
        lastProps = ReactDOMSelect.getHostProps(this, lastProps);
        nextProps = ReactDOMSelect.getHostProps(this, nextProps);
        break;
      case 'textarea':
        lastProps = ReactDOMTextarea.getHostProps(this, lastProps);
        nextProps = ReactDOMTextarea.getHostProps(this, nextProps);
        break;
      default:
        if (typeof lastProps.onClick !== 'function' && typeof nextProps.onClick === 'function') {
          transaction.getReactMountReady().enqueue(trapClickOnNonInteractiveElement, this);
        }
        break;
    }

    assertValidProps(this, nextProps);
    var isCustomComponentTag = isCustomComponent(this._tag, nextProps);
    this._updateDOMProperties(lastProps, nextProps, transaction, isCustomComponentTag);
    this._updateDOMChildren(lastProps, nextProps, transaction, context);

    switch (this._tag) {
      case 'input':
        // Update the wrapper around inputs *after* updating props. This has to
        // happen after `_updateDOMProperties`. Otherwise HTML5 input validations
        // raise warnings and prevent the new value from being assigned.
        ReactDOMInput.updateWrapper(this);
        break;
      case 'textarea':
        ReactDOMTextarea.updateWrapper(this);
        break;
      case 'select':
        // <select> value update needs to occur after <option> children
        // reconciliation
        transaction.getReactMountReady().enqueue(postUpdateSelectWrapper, this);
        break;
    }
  },

  /**
   * Reconciles the properties by detecting differences in property values and
   * updating the DOM as necessary. This function is probably the single most
   * critical path for performance optimization.
   *
   * TODO: Benchmark whether checking for changed values in memory actually
   *       improves performance (especially statically positioned elements).
   * TODO: Benchmark the effects of putting this at the top since 99% of props
   *       do not change for a given reconciliation.
   * TODO: Benchmark areas that can be improved with caching.
   *
   * @private
   * @param {object} lastProps
   * @param {object} nextProps
   * @param {?DOMElement} node
   */
  _updateDOMProperties: function (lastProps, nextProps, transaction, isCustomComponentTag) {
    var propKey;
    var styleName;
    var styleUpdates;
    for (propKey in lastProps) {
      if (nextProps.hasOwnProperty(propKey) || !lastProps.hasOwnProperty(propKey) || lastProps[propKey] == null) {
        continue;
      }
      if (propKey === STYLE) {
        var lastStyle = lastProps[STYLE];
        for (styleName in lastStyle) {
          if (lastStyle.hasOwnProperty(styleName)) {
            styleUpdates = styleUpdates || {};
            styleUpdates[styleName] = '';
          }
        }
      } else if (registrationNameModules.hasOwnProperty(propKey)) {
        // Do nothing for event names.
      } else if (isCustomComponent(this._tag, lastProps)) {
        if (!RESERVED_PROPS.hasOwnProperty(propKey)) {
          DOMPropertyOperations.deleteValueForAttribute(getNode(this), propKey);
        }
      } else if (DOMProperty$4.properties[propKey] || DOMProperty$4.isCustomAttribute(propKey)) {
        DOMPropertyOperations.deleteValueForProperty(getNode(this), propKey);
      }
    }
    for (propKey in nextProps) {
      var nextProp = nextProps[propKey];
      var lastProp = lastProps != null ? lastProps[propKey] : undefined;
      if (!nextProps.hasOwnProperty(propKey) || nextProp === lastProp || nextProp == null && lastProp == null) {
        continue;
      }
      if (propKey === STYLE) {
        if (nextProp) {
          if (__DEV__) {
            Object.freeze(nextProp);
          }
        }
        if (lastProp) {
          // Unset styles on `lastProp` but not on `nextProp`.
          for (styleName in lastProp) {
            if (lastProp.hasOwnProperty(styleName) && (!nextProp || !nextProp.hasOwnProperty(styleName))) {
              styleUpdates = styleUpdates || {};
              styleUpdates[styleName] = '';
            }
          }
          // Update styles that changed since `lastProp`.
          for (styleName in nextProp) {
            if (nextProp.hasOwnProperty(styleName) && lastProp[styleName] !== nextProp[styleName]) {
              styleUpdates = styleUpdates || {};
              styleUpdates[styleName] = nextProp[styleName];
            }
          }
        } else {
          // Relies on `updateStylesByID` not mutating `styleUpdates`.
          styleUpdates = nextProp;
        }
      } else if (registrationNameModules.hasOwnProperty(propKey)) {
        if (nextProp) {
          ensureListeningTo(this, propKey, transaction);
        }
      } else if (isCustomComponentTag) {
        if (!RESERVED_PROPS.hasOwnProperty(propKey)) {
          DOMPropertyOperations.setValueForAttribute(getNode(this), propKey, nextProp);
        }
      } else if (DOMProperty$4.properties[propKey] || DOMProperty$4.isCustomAttribute(propKey)) {
        var node = getNode(this);
        // If we're updating to null or undefined, we should remove the property
        // from the DOM node instead of inadvertently setting to a string. This
        // brings us in line with the same behavior we have on initial render.
        if (nextProp != null) {
          DOMPropertyOperations.setValueForProperty(node, propKey, nextProp);
        } else {
          DOMPropertyOperations.deleteValueForProperty(node, propKey);
        }
      }
    }
    if (styleUpdates) {
      if (__DEV__) {
        ReactInstrumentation$4.debugTool.onHostOperation({
          instanceID: this._debugID,
          type: 'update styles',
          payload: styleUpdates
        });
      }
      CSSPropertyOperations.setValueForStyles(getNode(this), styleUpdates, this);
    }
  },

  /**
   * Reconciles the children with the various properties that affect the
   * children content.
   *
   * @param {object} lastProps
   * @param {object} nextProps
   * @param {ReactReconcileTransaction} transaction
   * @param {object} context
   */
  _updateDOMChildren: function (lastProps, nextProps, transaction, context) {
    var lastContent = CONTENT_TYPES[typeof lastProps.children] ? lastProps.children : null;
    var nextContent = CONTENT_TYPES[typeof nextProps.children] ? nextProps.children : null;

    var lastHtml = lastProps.dangerouslySetInnerHTML && lastProps.dangerouslySetInnerHTML.__html;
    var nextHtml = nextProps.dangerouslySetInnerHTML && nextProps.dangerouslySetInnerHTML.__html;

    // Note the use of `!=` which checks for null or undefined.
    var lastChildren = lastContent != null ? null : lastProps.children;
    var nextChildren = nextContent != null ? null : nextProps.children;

    // If we're switching from children to content/html or vice versa, remove
    // the old content
    var lastHasContentOrHtml = lastContent != null || lastHtml != null;
    var nextHasContentOrHtml = nextContent != null || nextHtml != null;
    if (lastChildren != null && nextChildren == null) {
      this.updateChildren(null, transaction, context);
    } else if (lastHasContentOrHtml && !nextHasContentOrHtml) {
      this.updateTextContent('');
      if (__DEV__) {
        ReactInstrumentation$4.debugTool.onSetChildren(this._debugID, []);
      }
    }

    if (nextContent != null) {
      if (lastContent !== nextContent) {
        this.updateTextContent('' + nextContent);
        if (__DEV__) {
          setAndValidateContentChildDev.call(this, nextContent);
        }
      }
    } else if (nextHtml != null) {
      if (lastHtml !== nextHtml) {
        this.updateMarkup('' + nextHtml);
      }
      if (__DEV__) {
        ReactInstrumentation$4.debugTool.onSetChildren(this._debugID, []);
      }
    } else if (nextChildren != null) {
      if (__DEV__) {
        setAndValidateContentChildDev.call(this, null);
      }

      this.updateChildren(nextChildren, transaction, context);
    }
  },

  getHostNode: function () {
    return getNode(this);
  },

  /**
   * Destroys all event registrations for this instance. Does not remove from
   * the DOM. That must be done by the parent.
   *
   * @internal
   */
  unmountComponent: function (safely, skipLifecycle) {
    switch (this._tag) {
      case 'audio':
      case 'form':
      case 'iframe':
      case 'img':
      case 'image':
      case 'link':
      case 'object':
      case 'source':
      case 'video':
        var listeners = this._wrapperState.listeners;
        if (listeners) {
          for (var i = 0; i < listeners.length; i++) {
            listeners[i].remove();
          }
        }
        break;
      case 'input':
      case 'textarea':
        inputValueTracking$2.stopTracking(this);
        break;
      case 'html':
      case 'head':
      case 'body':
        /**
         * Components like <html> <head> and <body> can't be removed or added
         * easily in a cross-browser way, however it's valuable to be able to
         * take advantage of React's reconciliation for styling and <title>
         * management. So we just document it and throw in dangerous cases.
         */
        invariant$12(false, '<%s> tried to unmount. Because of cross-browser quirks it is ' + 'impossible to unmount some top-level components (eg <html>, ' + '<head>, and <body>) reliably and efficiently. To fix this, have a ' + 'single top-level component that never unmounts render these ' + 'elements.', this._tag);
        break;
    }

    this.unmountChildren(safely, skipLifecycle);
    ReactDOMComponentTree$11.uncacheNode(this);
    this._rootNodeID = 0;
    this._domID = 0;
    this._wrapperState = null;

    if (__DEV__) {
      setAndValidateContentChildDev.call(this, null);
    }
  },

  restoreControlledState: function () {
    switch (this._tag) {
      case 'input':
        ReactDOMInput.restoreControlledState(this);
        return;
      case 'textarea':
        ReactDOMTextarea.restoreControlledState(this);
        return;
      case 'select':
        ReactDOMSelect.restoreControlledState(this);
        return;
    }
  },

  getPublicInstance: function () {
    return getNode(this);
  }

};

Object.assign(ReactDOMComponent$1.prototype, ReactDOMComponent$1.Mixin, ReactMultiChild);

var ReactDOMComponent_1 = ReactDOMComponent$1;

var DOMLazyTree$4 = DOMLazyTree_1;
var ReactDOMComponentTree$18 = ReactDOMComponentTree_1;

var ReactDOMEmptyComponent$1 = function (instantiate) {
  // ReactCompositeComponent uses this:
  this._currentElement = null;
  // ReactDOMComponentTree uses these:
  this._hostNode = null;
  this._hostParent = null;
  this._hostContainerInfo = null;
  this._domID = 0;
};
Object.assign(ReactDOMEmptyComponent$1.prototype, {
  mountComponent: function (transaction, hostParent, hostContainerInfo, context) {
    var domID = hostContainerInfo._idCounter++;
    this._domID = domID;
    this._hostParent = hostParent;
    this._hostContainerInfo = hostContainerInfo;

    var nodeValue = ' react-empty: ' + this._domID + ' ';
    if (transaction.useCreateElement) {
      var ownerDocument = hostContainerInfo._ownerDocument;
      var node = ownerDocument.createComment(nodeValue);
      ReactDOMComponentTree$18.precacheNode(this, node);
      return DOMLazyTree$4(node);
    } else {
      if (transaction.renderToStaticMarkup) {
        // Normally we'd insert a comment node, but since this is a situation
        // where React won't take over (static pages), we can simply return
        // nothing.
        return '';
      }
      return '<!--' + nodeValue + '-->';
    }
  },
  receiveComponent: function () {},
  getHostNode: function () {
    return ReactDOMComponentTree$18.getNodeFromInstance(this);
  },
  unmountComponent: function () {
    ReactDOMComponentTree$18.uncacheNode(this);
  }
});

var ReactDOMEmptyComponent_1 = ReactDOMEmptyComponent$1;

var DOMChildrenOperations$3 = DOMChildrenOperations_1;
var DOMLazyTree$5 = DOMLazyTree_1;
var ReactDOMComponentTree$19 = ReactDOMComponentTree_1;

var escapeTextContentForBrowser$4 = escapeTextContentForBrowser_1;
var invariant$25 = invariant;
var validateDOMNesting$2 = validateDOMNesting_1;

/**
 * Text nodes violate a couple assumptions that React makes about components:
 *
 *  - When mounting text into the DOM, adjacent text nodes are merged.
 *  - Text nodes cannot be assigned a React root ID.
 *
 * This component is used to wrap strings between comment nodes so that they
 * can undergo the same reconciliation that is applied to elements.
 *
 * TODO: Investigate representing React components in the DOM with text nodes.
 *
 * @class ReactDOMTextComponent
 * @extends ReactComponent
 * @internal
 */
var ReactDOMTextComponent$1 = function (text) {
  // TODO: This is really a ReactText (ReactNode), not a ReactElement
  this._currentElement = text;
  this._stringText = '' + text;
  // ReactDOMComponentTree uses these:
  this._hostNode = null;
  this._hostParent = null;

  // Properties
  this._domID = 0;
  this._mountIndex = 0;
  this._closingComment = null;
  this._commentNodes = null;
};

Object.assign(ReactDOMTextComponent$1.prototype, {

  /**
   * Creates the markup for this text node. This node is not intended to have
   * any features besides containing text content.
   *
   * @param {ReactReconcileTransaction|ReactServerRenderingTransaction} transaction
   * @return {string} Markup for this text node.
   * @internal
   */
  mountComponent: function (transaction, hostParent, hostContainerInfo, context) {
    if (__DEV__) {
      var parentInfo;
      if (hostParent != null) {
        parentInfo = hostParent._ancestorInfo;
      } else if (hostContainerInfo != null) {
        parentInfo = hostContainerInfo._ancestorInfo;
      }
      if (parentInfo) {
        // parentInfo should always be present except for the top-level
        // component when server rendering
        validateDOMNesting$2(null, this._stringText, this, parentInfo);
      }
    }

    var domID = hostContainerInfo._idCounter++;
    var openingValue = ' react-text: ' + domID + ' ';
    var closingValue = ' /react-text ';
    this._domID = domID;
    this._hostParent = hostParent;
    if (transaction.useCreateElement) {
      var ownerDocument = hostContainerInfo._ownerDocument;
      var openingComment = ownerDocument.createComment(openingValue);
      var closingComment = ownerDocument.createComment(closingValue);
      var lazyTree = DOMLazyTree$5(ownerDocument.createDocumentFragment());
      DOMLazyTree$5.queueChild(lazyTree, DOMLazyTree$5(openingComment));
      if (this._stringText) {
        DOMLazyTree$5.queueChild(lazyTree, DOMLazyTree$5(ownerDocument.createTextNode(this._stringText)));
      }
      DOMLazyTree$5.queueChild(lazyTree, DOMLazyTree$5(closingComment));
      ReactDOMComponentTree$19.precacheNode(this, openingComment);
      this._closingComment = closingComment;
      return lazyTree;
    } else {
      var escapedText = escapeTextContentForBrowser$4(this._stringText);

      if (transaction.renderToStaticMarkup) {
        // Normally we'd wrap this between comment nodes for the reasons stated
        // above, but since this is a situation where React won't take over
        // (static pages), we can simply return the text as it is.
        return escapedText;
      }

      return '<!--' + openingValue + '-->' + escapedText + '<!--' + closingValue + '-->';
    }
  },

  /**
   * Updates this component by updating the text content.
   *
   * @param {ReactText} nextText The next text content
   * @param {ReactReconcileTransaction} transaction
   * @internal
   */
  receiveComponent: function (nextText, transaction) {
    if (nextText !== this._currentElement) {
      this._currentElement = nextText;
      var nextStringText = '' + nextText;
      if (nextStringText !== this._stringText) {
        // TODO: Save this as pending props and use performUpdateIfNecessary
        // and/or updateComponent to do the actual update for consistency with
        // other component types?
        this._stringText = nextStringText;
        var commentNodes = this.getHostNode();
        DOMChildrenOperations$3.replaceDelimitedText(commentNodes[0], commentNodes[1], nextStringText);
      }
    }
  },

  getHostNode: function () {
    var hostNode = this._commentNodes;
    if (hostNode) {
      return hostNode;
    }
    if (!this._closingComment) {
      var openingComment = ReactDOMComponentTree$19.getNodeFromInstance(this);
      var node = openingComment.nextSibling;
      while (true) {
        invariant$25(node != null, 'Missing closing comment for text component %s', this._domID);
        if (node.nodeType === 8 && node.nodeValue === ' /react-text ') {
          this._closingComment = node;
          break;
        }
        node = node.nextSibling;
      }
    }
    hostNode = [this._hostNode, this._closingComment];
    this._commentNodes = hostNode;
    return hostNode;
  },

  unmountComponent: function () {
    this._closingComment = null;
    this._commentNodes = null;
    ReactDOMComponentTree$19.uncacheNode(this);
  }

});

var ReactDOMTextComponent_1 = ReactDOMTextComponent$1;

var ReactUpdates$3 = ReactUpdates_1;
var Transaction$4 = Transaction$1;

var emptyFunction$6 = emptyFunction;

var RESET_BATCHED_UPDATES = {
  initialize: emptyFunction$6,
  close: function () {
    ReactDefaultBatchingStrategy$1.isBatchingUpdates = false;
  }
};

var FLUSH_BATCHED_UPDATES = {
  initialize: emptyFunction$6,
  close: ReactUpdates$3.flushBatchedUpdates.bind(ReactUpdates$3)
};

var TRANSACTION_WRAPPERS$2 = [FLUSH_BATCHED_UPDATES, RESET_BATCHED_UPDATES];

function ReactDefaultBatchingStrategyTransaction() {
  this.reinitializeTransaction();
}

Object.assign(ReactDefaultBatchingStrategyTransaction.prototype, Transaction$4, {
  getTransactionWrappers: function () {
    return TRANSACTION_WRAPPERS$2;
  }
});

var transaction = new ReactDefaultBatchingStrategyTransaction();

var ReactDefaultBatchingStrategy$1 = {
  isBatchingUpdates: false,

  /**
   * Call the provided function in a context within which calls to `setState`
   * and friends are batched such that components aren't updated unnecessarily.
   */
  batchedUpdates: function (callback, a, b, c, d, e) {
    var alreadyBatchingUpdates = ReactDefaultBatchingStrategy$1.isBatchingUpdates;

    ReactDefaultBatchingStrategy$1.isBatchingUpdates = true;

    // The code is written this way to avoid extra allocations
    if (alreadyBatchingUpdates) {
      return callback(a, b, c, d, e);
    } else {
      return transaction.perform(callback, null, a, b, c, d, e);
    }
  }
};

var ReactDefaultBatchingStrategy_1 = ReactDefaultBatchingStrategy$1;

var invariant$27 = invariant;

function validateCallback$1(callback) {
  invariant$27(!callback || typeof callback === 'function', 'Invalid argument passed as callback. Expected a function. Instead ' + 'received: %s', callback);
}

var validateCallback_1 = validateCallback$1;

function _classCallCheck$1(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var PooledClass$7 = PooledClass_1;

var invariant$26 = invariant;
var validateCallback = validateCallback_1;

/**
 * A specialized pseudo-event module to help keep track of components waiting to
 * be notified when their DOM representations are available for use.
 *
 * This implements `PooledClass`, so you should never need to instantiate this.
 * Instead, use `CallbackQueue.getPooled()`.
 *
 * @class CallbackQueue
 * @implements PooledClass
 * @internal
 */

var CallbackQueue$1 = function () {
  function CallbackQueue(arg) {
    _classCallCheck$1(this, CallbackQueue);

    this._callbacks = null;
    this._contexts = null;
    this._arg = arg;
  }

  /**
   * Enqueues a callback to be invoked when `notifyAll` is invoked.
   *
   * @param {function} callback Invoked when `notifyAll` is invoked.
   * @param {?object} context Context to call `callback` with.
   * @internal
   */


  CallbackQueue.prototype.enqueue = function enqueue(callback, context) {
    this._callbacks = this._callbacks || [];
    this._callbacks.push(callback);
    this._contexts = this._contexts || [];
    this._contexts.push(context);
  };

  /**
   * Invokes all enqueued callbacks and clears the queue. This is invoked after
   * the DOM representation of a component has been created or updated.
   *
   * @internal
   */


  CallbackQueue.prototype.notifyAll = function notifyAll() {
    var callbacks = this._callbacks;
    var contexts = this._contexts;
    var arg = this._arg;
    if (callbacks && contexts) {
      invariant$26(callbacks.length === contexts.length, 'Mismatched list of contexts in callback queue');
      this._callbacks = null;
      this._contexts = null;
      for (var i = 0; i < callbacks.length; i++) {
        validateCallback(callbacks[i]);
        callbacks[i].call(contexts[i], arg);
      }
      callbacks.length = 0;
      contexts.length = 0;
    }
  };

  CallbackQueue.prototype.checkpoint = function checkpoint() {
    return this._callbacks ? this._callbacks.length : 0;
  };

  CallbackQueue.prototype.rollback = function rollback(len) {
    if (this._callbacks && this._contexts) {
      this._callbacks.length = len;
      this._contexts.length = len;
    }
  };

  /**
   * Resets the internal queue.
   *
   * @internal
   */


  CallbackQueue.prototype.reset = function reset() {
    this._callbacks = null;
    this._contexts = null;
  };

  /**
   * `PooledClass` looks for this.
   */


  CallbackQueue.prototype.destructor = function destructor() {
    this.reset();
  };

  return CallbackQueue;
}();

var CallbackQueue_1 = PooledClass$7.addPoolingTo(CallbackQueue$1);

var CallbackQueue = CallbackQueue_1;
var PooledClass$6 = PooledClass_1;
var ReactBrowserEventEmitter$4 = ReactBrowserEventEmitter_1;
var ReactInputSelection$2 = ReactInputSelection_1;
var ReactInstrumentation$11 = ReactInstrumentation$2;
var Transaction$5 = Transaction$1;
var ReactUpdateQueue$2 = ReactUpdateQueue_1;

/**
 * Ensures that, when possible, the selection range (currently selected text
 * input) is not disturbed by performing the transaction.
 */
var SELECTION_RESTORATION = {
  /**
   * @return {Selection} Selection information.
   */
  initialize: ReactInputSelection$2.getSelectionInformation,
  /**
   * @param {Selection} sel Selection information returned from `initialize`.
   */
  close: ReactInputSelection$2.restoreSelection
};

/**
 * Suppresses events (blur/focus) that could be inadvertently dispatched due to
 * high level DOM manipulations (like temporarily removing a text input from the
 * DOM).
 */
var EVENT_SUPPRESSION = {
  /**
   * @return {boolean} The enabled status of `ReactBrowserEventEmitter` before
   * the reconciliation.
   */
  initialize: function () {
    var currentlyEnabled = ReactBrowserEventEmitter$4.isEnabled();
    ReactBrowserEventEmitter$4.setEnabled(false);
    return currentlyEnabled;
  },

  /**
   * @param {boolean} previouslyEnabled Enabled status of
   *   `ReactBrowserEventEmitter` before the reconciliation occurred. `close`
   *   restores the previous value.
   */
  close: function (previouslyEnabled) {
    ReactBrowserEventEmitter$4.setEnabled(previouslyEnabled);
  }
};

/**
 * Provides a queue for collecting `componentDidMount` and
 * `componentDidUpdate` callbacks during the transaction.
 */
var ON_DOM_READY_QUEUEING = {
  /**
   * Initializes the internal `onDOMReady` queue.
   */
  initialize: function () {
    this.reactMountReady.reset();
  },

  /**
   * After DOM is flushed, invoke all registered `onDOMReady` callbacks.
   */
  close: function () {
    this.reactMountReady.notifyAll();
  }
};

/**
 * Executed within the scope of the `Transaction` instance. Consider these as
 * being member methods, but with an implied ordering while being isolated from
 * each other.
 */
var TRANSACTION_WRAPPERS$3 = [SELECTION_RESTORATION, EVENT_SUPPRESSION, ON_DOM_READY_QUEUEING];

if (__DEV__) {
  TRANSACTION_WRAPPERS$3.push({
    initialize: ReactInstrumentation$11.debugTool.onBeginFlush,
    close: ReactInstrumentation$11.debugTool.onEndFlush
  });
}

/**
 * Currently:
 * - The order that these are listed in the transaction is critical:
 * - Suppresses events.
 * - Restores selection range.
 *
 * Future:
 * - Restore document/overflow scroll positions that were unintentionally
 *   modified via DOM insertions above the top viewport boundary.
 * - Implement/integrate with customized constraint based layout system and keep
 *   track of which dimensions must be remeasured.
 *
 * @class ReactReconcileTransaction
 */
function ReactReconcileTransaction$1(useCreateElement) {
  this.reinitializeTransaction();
  // Only server-side rendering really needs this option (see
  // `ReactServerRendering`), but server-side uses
  // `ReactServerRenderingTransaction` instead. This option is here so that it's
  // accessible and defaults to false when `ReactDOMComponent` and
  // `ReactDOMTextComponent` checks it in `mountComponent`.`
  this.renderToStaticMarkup = false;
  this.reactMountReady = CallbackQueue.getPooled(null);
  this.useCreateElement = useCreateElement;
}

var Mixin$1 = {
  /**
   * @see Transaction
   * @abstract
   * @final
   * @return {array<object>} List of operation wrap procedures.
   *   TODO: convert to array<TransactionWrapper>
   */
  getTransactionWrappers: function () {
    return TRANSACTION_WRAPPERS$3;
  },

  /**
   * @return {object} The queue to collect `onDOMReady` callbacks with.
   */
  getReactMountReady: function () {
    return this.reactMountReady;
  },

  /**
   * @return {object} The queue to collect React async events.
   */
  getUpdateQueue: function () {
    return ReactUpdateQueue$2;
  },

  /**
   * Save current transaction state -- if the return value from this method is
   * passed to `rollback`, the transaction will be reset to that state.
   */
  checkpoint: function () {
    // reactMountReady is the our only stateful wrapper
    return this.reactMountReady.checkpoint();
  },

  rollback: function (checkpoint) {
    this.reactMountReady.rollback(checkpoint);
  },

  /**
   * `PooledClass` looks for this, and will invoke this before allowing this
   * instance to be reused.
   */
  destructor: function () {
    CallbackQueue.release(this.reactMountReady);
    this.reactMountReady = null;
  }
};

Object.assign(ReactReconcileTransaction$1.prototype, Transaction$5, Mixin$1);

PooledClass$6.addPoolingTo(ReactReconcileTransaction$1);

var ReactReconcileTransaction_1 = ReactReconcileTransaction$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule findDOMNode
 *
 */

var ReactCurrentOwner$6 = ReactCurrentOwner_1;
var ReactInstanceMap$4 = ReactInstanceMap_1;

var getComponentName$5 = getComponentName_1;
var invariant$28 = invariant;
var warning$26 = warning;

var findFiber = function (arg) {
  invariant$28(false, 'Missing injection for fiber findDOMNode');
};
var findStack = function (arg) {
  invariant$28(false, 'Missing injection for stack findDOMNode');
};

var findDOMNode$2 = function (componentOrElement) {
  if (__DEV__) {
    var owner = ReactCurrentOwner$6.current;
    if (owner !== null) {
      var isFiber = typeof owner.tag === 'number';
      var warnedAboutRefsInRender = isFiber ? owner.stateNode._warnedAboutRefsInRender : owner._warnedAboutRefsInRender;
      warning$26(warnedAboutRefsInRender, '%s is accessing findDOMNode inside its render(). ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', getComponentName$5(owner) || 'A component');
      if (isFiber) {
        owner.stateNode._warnedAboutRefsInRender = true;
      } else {
        owner._warnedAboutRefsInRender = true;
      }
    }
  }
  if (componentOrElement == null) {
    return null;
  }
  if (componentOrElement.nodeType === 1) {
    return componentOrElement;
  }

  var inst = ReactInstanceMap$4.get(componentOrElement);
  if (inst) {
    if (typeof inst.tag === 'number') {
      return findFiber(inst);
    } else {
      return findStack(inst);
    }
  }

  if (typeof componentOrElement.render === 'function') {
    invariant$28(false, 'Unable to find node on an unmounted component.');
  } else {
    invariant$28(false, 'Element appears to be neither ReactComponent nor DOMNode. Keys: %s', Object.keys(componentOrElement));
  }
};

findDOMNode$2._injectFiber = function (fn) {
  findFiber = fn;
};
findDOMNode$2._injectStack = function (fn) {
  findStack = fn;
};

var findDOMNode_1 = findDOMNode$2;

var ReactNodeTypes$2 = ReactNodeTypes_1;

function getHostComponentFromComposite$2(inst) {
  var type;

  while ((type = inst._renderedNodeType) === ReactNodeTypes$2.COMPOSITE) {
    inst = inst._renderedComponent;
  }

  if (type === ReactNodeTypes$2.HOST) {
    return inst._renderedComponent;
  } else if (type === ReactNodeTypes$2.EMPTY) {
    return null;
  }
}

var getHostComponentFromComposite_1 = getHostComponentFromComposite$2;

var ReactComponentEnvironment = ReactComponentEnvironment_1;
var ReactComponentBrowserEnvironment = ReactComponentBrowserEnvironment_1;
var ReactDOMComponent = ReactDOMComponent_1;
var ReactDOMComponentTree$8 = ReactDOMComponentTree_1;
var ReactDOMEmptyComponent = ReactDOMEmptyComponent_1;
var ReactDOMTextComponent = ReactDOMTextComponent_1;
var ReactDefaultBatchingStrategy = ReactDefaultBatchingStrategy_1;
var ReactEmptyComponent = ReactEmptyComponent_1;
var ReactGenericBatching$4 = ReactGenericBatching_1;
var ReactHostComponent = ReactHostComponent_1;
var ReactReconcileTransaction = ReactReconcileTransaction_1;
var ReactUpdates = ReactUpdates_1;

var findDOMNode$1 = findDOMNode_1;
var getHostComponentFromComposite$1 = getHostComponentFromComposite_1;

var alreadyInjected$1 = false;

function inject$1() {
  if (alreadyInjected$1) {
    // TODO: This is currently true because these injections are shared between
    // the client and the server package. They should be built independently
    // and not share any injection state. Then this problem will be solved.
    return;
  }
  alreadyInjected$1 = true;

  ReactGenericBatching$4.injection.injectStackBatchedUpdates(ReactUpdates.batchedUpdates);

  ReactHostComponent.injection.injectGenericComponentClass(ReactDOMComponent);

  ReactHostComponent.injection.injectTextComponentClass(ReactDOMTextComponent);

  ReactEmptyComponent.injection.injectEmptyComponentFactory(function (instantiate) {
    return new ReactDOMEmptyComponent(instantiate);
  });

  ReactUpdates.injection.injectReconcileTransaction(ReactReconcileTransaction);
  ReactUpdates.injection.injectBatchingStrategy(ReactDefaultBatchingStrategy);

  ReactComponentEnvironment.injection.injectEnvironment(ReactComponentBrowserEnvironment);

  findDOMNode$1._injectStack(function (inst) {
    inst = getHostComponentFromComposite$1(inst);
    return inst ? ReactDOMComponentTree$8.getNodeFromInstance(inst) : null;
  });
}

var ReactDOMStackInjection$1 = {
  inject: inject$1
};

var validateDOMNesting$3 = validateDOMNesting_1;

var DOC_NODE_TYPE$1 = 9;

function ReactDOMContainerInfo$1(topLevelWrapper, node) {
  var info = {
    _topLevelWrapper: topLevelWrapper,
    _idCounter: 1,
    _ownerDocument: node ? node.nodeType === DOC_NODE_TYPE$1 ? node : node.ownerDocument : null,
    _node: node,
    _tag: node ? node.nodeName.toLowerCase() : null,
    _namespaceURI: node ? node.namespaceURI : null
  };
  if (__DEV__) {
    info._ancestorInfo = node ? validateDOMNesting$3.updatedAncestorInfo(null, info._tag, null) : null;
  }
  return info;
}

var ReactDOMContainerInfo_1 = ReactDOMContainerInfo$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactDOMFeatureFlags
 */

var ReactDOMFeatureFlags$1 = {
  useCreateElement: true,
  useFiber: false
};

var ReactDOMFeatureFlags_1 = ReactDOMFeatureFlags$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule adler32
 *
 */

var MOD = 65521;

// adler32 is not cryptographically strong, and is only used to sanity check that
// markup generated on the server matches the markup generated on the client.
// This implementation (a modified version of the SheetJS version) has been optimized
// for our use case, at the expense of conforming to the adler32 specification
// for non-ascii inputs.
function adler32$1(data) {
  var a = 1;
  var b = 0;
  var i = 0;
  var l = data.length;
  var m = l & ~0x3;
  while (i < m) {
    var n = Math.min(i + 4096, m);
    for (; i < n; i += 4) {
      b += (a += data.charCodeAt(i)) + (a += data.charCodeAt(i + 1)) + (a += data.charCodeAt(i + 2)) + (a += data.charCodeAt(i + 3));
    }
    a %= MOD;
    b %= MOD;
  }
  for (; i < l; i++) {
    b += a += data.charCodeAt(i);
  }
  a %= MOD;
  b %= MOD;
  return a | b << 16;
}

var adler32_1 = adler32$1;

var adler32 = adler32_1;

var TAG_END = /\/?>/;
var COMMENT_START = /^<\!\-\-/;

var ReactMarkupChecksum$1 = {
  CHECKSUM_ATTR_NAME: 'data-react-checksum',

  /**
   * @param {string} markup Markup string
   * @return {string} Markup string with checksum attribute attached
   */
  addChecksumToMarkup: function (markup) {
    var checksum = adler32(markup);

    // Add checksum (handle both parent tags, comments and self-closing tags)
    if (COMMENT_START.test(markup)) {
      return markup;
    } else {
      return markup.replace(TAG_END, ' ' + ReactMarkupChecksum$1.CHECKSUM_ATTR_NAME + '="' + checksum + '"$&');
    }
  },

  /**
   * @param {string} markup to use
   * @param {DOMElement} element root React element
   * @returns {boolean} whether or not the markup is the same
   */
  canReuseMarkup: function (markup, element) {
    var existingChecksum = element.getAttribute(ReactMarkupChecksum$1.CHECKSUM_ATTR_NAME);
    existingChecksum = existingChecksum && parseInt(existingChecksum, 10);
    var markupChecksum = adler32(markup);
    return markupChecksum === existingChecksum;
  }
};

var ReactMarkupChecksum_1 = ReactMarkupChecksum$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule getContextForSubtree
 *
 */

var ReactInstanceMap$6 = ReactInstanceMap_1;

var emptyObject$3 = emptyObject;
var invariant$30 = invariant;

var getContextFiber = function (arg) {
  invariant$30(false, 'Missing injection for fiber getContextForSubtree');
};

function getContextForSubtree$1(parentComponent) {
  if (!parentComponent) {
    return emptyObject$3;
  }

  var instance = ReactInstanceMap$6.get(parentComponent);
  if (typeof instance.tag === 'number') {
    return getContextFiber(instance);
  } else {
    return instance._processChildContext(instance._context);
  }
}

getContextForSubtree$1._injectFiber = function (fn) {
  getContextFiber = fn;
};

var getContextForSubtree_1 = getContextForSubtree$1;

var DOMLazyTree$6 = DOMLazyTree_1;
var DOMProperty$6 = DOMProperty_1;
var React$5 = React;
var ReactBrowserEventEmitter$5 = ReactBrowserEventEmitter_1;
var ReactCurrentOwner$7 = ReactCurrentOwner_1;
var ReactDOMComponentTree$20 = ReactDOMComponentTree_1;
var ReactDOMContainerInfo = ReactDOMContainerInfo_1;
var ReactDOMFeatureFlags = ReactDOMFeatureFlags_1;
var ReactFeatureFlags$4 = ReactFeatureFlags_1;
var ReactInstanceMap$5 = ReactInstanceMap_1;
var ReactInstrumentation$12 = ReactInstrumentation$2;
var ReactMarkupChecksum = ReactMarkupChecksum_1;
var ReactReconciler$6 = ReactReconciler_1;
var ReactUpdateQueue$3 = ReactUpdateQueue_1;
var ReactUpdates$4 = ReactUpdates_1;

var getContextForSubtree = getContextForSubtree_1;
var instantiateReactComponent$2 = instantiateReactComponent_1;
var invariant$29 = invariant;
var setInnerHTML$4 = setInnerHTML_1;
var shouldUpdateReactComponent$3 = shouldUpdateReactComponent_1;
var warning$27 = warning;
var validateCallback$2 = validateCallback_1;

var ATTR_NAME$1 = DOMProperty$6.ID_ATTRIBUTE_NAME;
var ROOT_ATTR_NAME = DOMProperty$6.ROOT_ATTRIBUTE_NAME;

var ELEMENT_NODE_TYPE$1 = 1;
var DOC_NODE_TYPE = 9;
var DOCUMENT_FRAGMENT_NODE_TYPE$1 = 11;

var instancesByReactRootID = {};

/**
 * Finds the index of the first character
 * that's not common between the two given strings.
 *
 * @return {number} the index of the character where the strings diverge
 */
function firstDifferenceIndex(string1, string2) {
  var minLen = Math.min(string1.length, string2.length);
  for (var i = 0; i < minLen; i++) {
    if (string1.charAt(i) !== string2.charAt(i)) {
      return i;
    }
  }
  return string1.length === string2.length ? -1 : minLen;
}

/**
 * @param {DOMElement|DOMDocument} container DOM element that may contain
 * a React component
 * @return {?*} DOM element that may have the reactRoot ID, or null.
 */
function getReactRootElementInContainer(container) {
  if (!container) {
    return null;
  }

  if (container.nodeType === DOC_NODE_TYPE) {
    return container.documentElement;
  } else {
    return container.firstChild;
  }
}

function internalGetID(node) {
  // If node is something like a window, document, or text node, none of
  // which support attributes or a .getAttribute method, gracefully return
  // the empty string, as if the attribute were missing.
  return node.getAttribute && node.getAttribute(ATTR_NAME$1) || '';
}

/**
 * Mounts this component and inserts it into the DOM.
 *
 * @param {ReactComponent} componentInstance The instance to mount.
 * @param {DOMElement} container DOM element to mount into.
 * @param {ReactReconcileTransaction} transaction
 * @param {boolean} shouldReuseMarkup If true, do not insert markup
 */
function mountComponentIntoNode(wrapperInstance, container, transaction, shouldReuseMarkup, context) {
  var markerName;
  if (ReactFeatureFlags$4.logTopLevelRenders) {
    var wrappedElement = wrapperInstance._currentElement.props.child;
    var type = wrappedElement.type;
    markerName = 'React mount: ' + (typeof type === 'string' ? type : type.displayName || type.name);
    console.time(markerName);
  }

  var markup = ReactReconciler$6.mountComponent(wrapperInstance, transaction, null, ReactDOMContainerInfo(wrapperInstance, container), context, 0 /* parentDebugID */
  );

  if (markerName) {
    console.timeEnd(markerName);
  }

  wrapperInstance._renderedComponent._topLevelWrapper = wrapperInstance;
  ReactMount$1._mountImageIntoNode(markup, container, wrapperInstance, shouldReuseMarkup, transaction);
}

/**
 * Batched mount.
 *
 * @param {ReactComponent} componentInstance The instance to mount.
 * @param {DOMElement} container DOM element to mount into.
 * @param {boolean} shouldReuseMarkup If true, do not insert markup
 */
function batchedMountComponentIntoNode(componentInstance, container, shouldReuseMarkup, context) {
  var transaction = ReactUpdates$4.ReactReconcileTransaction.getPooled(
  /* useCreateElement */
  !shouldReuseMarkup && ReactDOMFeatureFlags.useCreateElement);
  transaction.perform(mountComponentIntoNode, null, componentInstance, container, transaction, shouldReuseMarkup, context);
  ReactUpdates$4.ReactReconcileTransaction.release(transaction);
}

/**
 * Unmounts a component and removes it from the DOM.
 *
 * @param {ReactComponent} instance React component instance.
 * @param {DOMElement} container DOM element to unmount from.
 * @final
 * @internal
 * @see {ReactMount.unmountComponentAtNode}
 */
function unmountComponentFromNode(instance, container) {
  if (__DEV__) {
    ReactInstrumentation$12.debugTool.onBeginFlush();
  }
  ReactReconciler$6.unmountComponent(instance, false /* safely */
  , false /* skipLifecycle */
  );
  if (__DEV__) {
    ReactInstrumentation$12.debugTool.onEndFlush();
  }

  if (container.nodeType === DOC_NODE_TYPE) {
    container = container.documentElement;
  }

  // http://jsperf.com/emptying-a-node
  while (container.lastChild) {
    container.removeChild(container.lastChild);
  }
}

/**
 * True if the supplied DOM node has a direct React-rendered child that is
 * not a React root element. Useful for warning in `render`,
 * `unmountComponentAtNode`, etc.
 *
 * @param {?DOMElement} node The candidate DOM node.
 * @return {boolean} True if the DOM element contains a direct child that was
 * rendered by React but is not a root element.
 * @internal
 */
function hasNonRootReactChild(container) {
  var rootEl = getReactRootElementInContainer(container);
  if (rootEl) {
    var inst = ReactDOMComponentTree$20.getInstanceFromNode(rootEl);
    return !!(inst && inst._hostParent);
  }
}

/**
 * True if the supplied DOM node is a React DOM element and
 * it has been rendered by another copy of React.
 *
 * @param {?DOMElement} node The candidate DOM node.
 * @return {boolean} True if the DOM has been rendered by another copy of React
 * @internal
 */
function nodeIsRenderedByOtherInstance(container) {
  var rootEl = getReactRootElementInContainer(container);
  return !!(rootEl && isReactNode(rootEl) && !ReactDOMComponentTree$20.getInstanceFromNode(rootEl));
}

/**
 * True if the supplied DOM node is a valid node element.
 *
 * @param {?DOMElement} node The candidate DOM node.
 * @return {boolean} True if the DOM is a valid DOM node.
 * @internal
 */
function isValidContainer(node) {
  return !!(node && (node.nodeType === ELEMENT_NODE_TYPE$1 || node.nodeType === DOC_NODE_TYPE || node.nodeType === DOCUMENT_FRAGMENT_NODE_TYPE$1));
}

/**
 * True if the supplied DOM node is a valid React node element.
 *
 * @param {?DOMElement} node The candidate DOM node.
 * @return {boolean} True if the DOM is a valid React DOM node.
 * @internal
 */
function isReactNode(node) {
  return isValidContainer(node) && (node.hasAttribute(ROOT_ATTR_NAME) || node.hasAttribute(ATTR_NAME$1));
}

function getHostRootInstanceInContainer(container) {
  var rootEl = getReactRootElementInContainer(container);
  var prevHostInstance = rootEl && ReactDOMComponentTree$20.getInstanceFromNode(rootEl);
  return prevHostInstance && !prevHostInstance._hostParent ? prevHostInstance : null;
}

function getTopLevelWrapperInContainer(container) {
  var root = getHostRootInstanceInContainer(container);
  return root ? root._hostContainerInfo._topLevelWrapper : null;
}

/**
 * Temporary (?) hack so that we can store all top-level pending updates on
 * composites instead of having to worry about different types of components
 * here.
 */
var topLevelRootCounter = 1;
var TopLevelWrapper = function () {
  this.rootID = topLevelRootCounter++;
};
TopLevelWrapper.prototype.isReactComponent = {};
if (__DEV__) {
  TopLevelWrapper.displayName = 'TopLevelWrapper';
}
TopLevelWrapper.prototype.render = function () {
  return this.props.child;
};
TopLevelWrapper.isReactTopLevelWrapper = true;

/**
 * Mounting is the process of initializing a React component by creating its
 * representative DOM elements and inserting them into a supplied `container`.
 * Any prior content inside `container` is destroyed in the process.
 *
 *   ReactMount.render(
 *     component,
 *     document.getElementById('container')
 *   );
 *
 *   <div id="container">                   <-- Supplied `container`.
 *     <div data-reactid=".3">              <-- Rendered reactRoot of React
 *       // ...                                 component.
 *     </div>
 *   </div>
 *
 * Inside of `container`, the first element rendered is the "reactRoot".
 */
var ReactMount$1 = {

  TopLevelWrapper: TopLevelWrapper,

  /**
   * Used by devtools. The keys are not important.
   */
  _instancesByReactRootID: instancesByReactRootID,

  /**
   * This is a hook provided to support rendering React components while
   * ensuring that the apparent scroll position of its `container` does not
   * change.
   *
   * @param {DOMElement} container The `container` being rendered into.
   * @param {function} renderCallback This must be called once to do the render.
   */
  scrollMonitor: function (container, renderCallback) {
    renderCallback();
  },

  /**
   * Take a component that's already mounted into the DOM and replace its props
   * @param {ReactComponent} prevComponent component instance already in the DOM
   * @param {ReactElement} nextElement component instance to render
   * @param {DOMElement} container container to render into
   * @param {?function} callback function triggered on completion
   */
  _updateRootComponent: function (prevComponent, nextElement, nextContext, container, callback) {
    ReactMount$1.scrollMonitor(container, function () {
      ReactUpdateQueue$3.enqueueElementInternal(prevComponent, nextElement, nextContext);
      if (callback) {
        ReactUpdateQueue$3.enqueueCallbackInternal(prevComponent, callback);
      }
    });

    return prevComponent;
  },

  /**
   * Render a new component into the DOM. Hooked by hooks!
   *
   * @param {ReactElement} nextElement element to render
   * @param {DOMElement} container container to render into
   * @param {boolean} shouldReuseMarkup if we should skip the markup insertion
   * @return {ReactComponent} nextComponent
   */
  _renderNewRootComponent: function (nextElement, container, shouldReuseMarkup, context, callback) {
    // Various parts of our code (such as ReactCompositeComponent's
    // _renderValidatedComponent) assume that calls to render aren't nested;
    // verify that that's the case.
    warning$27(ReactCurrentOwner$7.current == null, '_renderNewRootComponent(): Render methods should be a pure function ' + 'of props and state; triggering nested component updates from ' + 'render is not allowed. If necessary, trigger nested updates in ' + 'componentDidUpdate.\n\nCheck the render method of %s.', ReactCurrentOwner$7.current && ReactCurrentOwner$7.current.getName() || 'ReactCompositeComponent');

    invariant$29(isValidContainer(container), '_registerComponent(...): Target container is not a DOM element.');

    ReactBrowserEventEmitter$5.ensureScrollValueMonitoring();
    var componentInstance = instantiateReactComponent$2(nextElement, false);

    if (callback) {
      componentInstance._pendingCallbacks = [function () {
        validateCallback$2(callback);
        callback.call(componentInstance._renderedComponent.getPublicInstance());
      }];
    }

    // The initial render is synchronous but any updates that happen during
    // rendering, in componentWillMount or componentDidMount, will be batched
    // according to the current batching strategy.

    ReactUpdates$4.batchedUpdates(batchedMountComponentIntoNode, componentInstance, container, shouldReuseMarkup, context);

    var wrapperID = componentInstance._instance.rootID;
    instancesByReactRootID[wrapperID] = componentInstance;

    return componentInstance;
  },

  /**
   * Renders a React component into the DOM in the supplied `container`.
   *
   * If the React component was previously rendered into `container`, this will
   * perform an update on it and only mutate the DOM as necessary to reflect the
   * latest React component.
   *
   * @param {ReactComponent} parentComponent The conceptual parent of this render tree.
   * @param {ReactElement} nextElement Component element to render.
   * @param {DOMElement} container DOM element to render into.
   * @param {?function} callback function triggered on completion
   * @return {ReactComponent} Component instance rendered in `container`.
   */
  renderSubtreeIntoContainer: function (parentComponent, nextElement, container, callback) {
    invariant$29(parentComponent != null && ReactInstanceMap$5.has(parentComponent), 'parentComponent must be a valid React Component');
    return ReactMount$1._renderSubtreeIntoContainer(parentComponent, nextElement, container, callback);
  },

  _renderSubtreeIntoContainer: function (parentComponent, nextElement, container, callback) {
    callback = callback === undefined ? null : callback;
    if (__DEV__) {
      warning$27(callback === null || typeof callback === 'function', 'render(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', '' + callback);
    }
    if (!React$5.isValidElement(nextElement)) {
      if (typeof nextElement === 'string') {
        invariant$29(false, 'ReactDOM.render(): Invalid component element. Instead of ' + 'passing a string like \'div\', pass ' + 'React.createElement(\'div\') or <div />.');
      } else if (typeof nextElement === 'function') {
        invariant$29(false, 'ReactDOM.render(): Invalid component element. Instead of ' + 'passing a class like Foo, pass React.createElement(Foo) ' + 'or <Foo />.');
      } else if (nextElement != null && typeof nextElement.props !== 'undefined') {
        // Check if it quacks like an element
        invariant$29(false, 'ReactDOM.render(): Invalid component element. This may be ' + 'caused by unintentionally loading two independent copies ' + 'of React.');
      } else {
        invariant$29(false, 'ReactDOM.render(): Invalid component element.');
      }
    }

    warning$27(!container || !container.tagName || container.tagName.toUpperCase() !== 'BODY', 'render(): Rendering components directly into document.body is ' + 'discouraged, since its children are often manipulated by third-party ' + 'scripts and browser extensions. This may lead to subtle ' + 'reconciliation issues. Try rendering into a container element created ' + 'for your app.');

    var nextWrappedElement = React$5.createElement(TopLevelWrapper, { child: nextElement });

    var nextContext = getContextForSubtree(parentComponent);
    var prevComponent = getTopLevelWrapperInContainer(container);

    if (prevComponent) {
      var prevWrappedElement = prevComponent._currentElement;
      var prevElement = prevWrappedElement.props.child;
      if (shouldUpdateReactComponent$3(prevElement, nextElement)) {
        var publicInst = prevComponent._renderedComponent.getPublicInstance();
        var updatedCallback = callback && function () {
          validateCallback$2(callback);
          callback.call(publicInst);
        };
        ReactMount$1._updateRootComponent(prevComponent, nextWrappedElement, nextContext, container, updatedCallback);
        return publicInst;
      } else {
        ReactMount$1.unmountComponentAtNode(container);
      }
    }

    var reactRootElement = getReactRootElementInContainer(container);
    var containerHasReactMarkup = reactRootElement && !!internalGetID(reactRootElement);
    var containerHasNonRootReactChild = hasNonRootReactChild(container);

    if (__DEV__) {
      warning$27(!containerHasNonRootReactChild, 'render(...): Replacing React-rendered children with a new root ' + 'component. If you intended to update the children of this node, ' + 'you should instead have the existing children update their state ' + 'and render the new components instead of calling ReactDOM.render.');

      if (!containerHasReactMarkup || reactRootElement.nextSibling) {
        var rootElementSibling = reactRootElement;
        while (rootElementSibling) {
          if (internalGetID(rootElementSibling)) {
            warning$27(false, 'render(): Target node has markup rendered by React, but there ' + 'are unrelated nodes as well. This is most commonly caused by ' + 'white-space inserted around server-rendered markup.');
            break;
          }
          rootElementSibling = rootElementSibling.nextSibling;
        }
      }
    }

    var shouldReuseMarkup = containerHasReactMarkup && !prevComponent && !containerHasNonRootReactChild;
    var component = ReactMount$1._renderNewRootComponent(nextWrappedElement, container, shouldReuseMarkup, nextContext, callback)._renderedComponent.getPublicInstance();
    return component;
  },

  /**
   * Renders a React component into the DOM in the supplied `container`.
   * See https://facebook.github.io/react/docs//Users/gaearon/p/react/src/renderers/dom/ReactDOM.js.html#render
   *
   * If the React component was previously rendered into `container`, this will
   * perform an update on it and only mutate the DOM as necessary to reflect the
   * latest React component.
   *
   * @param {ReactElement} nextElement Component element to render.
   * @param {DOMElement} container DOM element to render into.
   * @param {?function} callback function triggered on completion
   * @return {ReactComponent} Component instance rendered in `container`.
   */
  render: function (nextElement, container, callback) {
    return ReactMount$1._renderSubtreeIntoContainer(null, nextElement, container, callback);
  },

  /**
   * Unmounts and destroys the React component rendered in the `container`.
   * See https://facebook.github.io/react/docs//Users/gaearon/p/react/src/renderers/dom/ReactDOM.js.html#unmountcomponentatnode
   *
   * @param {DOMElement} container DOM element containing a React component.
   * @return {boolean} True if a component was found in and unmounted from
   *                   `container`
   */
  unmountComponentAtNode: function (container) {
    // Various parts of our code (such as ReactCompositeComponent's
    // _renderValidatedComponent) assume that calls to render aren't nested;
    // verify that that's the case. (Strictly speaking, unmounting won't cause a
    // render but we still don't expect to be in a render call here.)
    warning$27(ReactCurrentOwner$7.current == null, 'unmountComponentAtNode(): Render methods should be a pure function ' + 'of props and state; triggering nested component updates from render ' + 'is not allowed. If necessary, trigger nested updates in ' + 'componentDidUpdate.\n\nCheck the render method of %s.', ReactCurrentOwner$7.current && ReactCurrentOwner$7.current.getName() || 'ReactCompositeComponent');

    invariant$29(isValidContainer(container), 'unmountComponentAtNode(...): Target container is not a DOM element.');

    if (__DEV__) {
      warning$27(!nodeIsRenderedByOtherInstance(container), 'unmountComponentAtNode(): The node you\'re attempting to unmount ' + 'was rendered by another copy of React.');
    }

    var prevComponent = getTopLevelWrapperInContainer(container);
    if (!prevComponent) {
      // Check if the node being unmounted was rendered by React, but isn't a
      // root node.
      var containerHasNonRootReactChild = hasNonRootReactChild(container);

      // Check if the container itself is a React root node.
      var isContainerReactRoot = container.nodeType === 1 && container.hasAttribute(ROOT_ATTR_NAME);

      if (__DEV__) {
        warning$27(!containerHasNonRootReactChild, 'unmountComponentAtNode(): The node you\'re attempting to unmount ' + 'was rendered by React and is not a top-level container. %s', isContainerReactRoot ? 'You may have accidentally passed in a React root node instead ' + 'of its container.' : 'Instead, have the parent component update its state and ' + 'rerender in order to remove this component.');
      }

      return false;
    }
    delete instancesByReactRootID[prevComponent._instance.rootID];
    ReactUpdates$4.batchedUpdates(unmountComponentFromNode, prevComponent, container);
    return true;
  },

  _mountImageIntoNode: function (markup, container, instance, shouldReuseMarkup, transaction) {
    invariant$29(isValidContainer(container), 'mountComponentIntoNode(...): Target container is not valid.');

    if (shouldReuseMarkup) {
      var rootElement = getReactRootElementInContainer(container);
      if (ReactMarkupChecksum.canReuseMarkup(markup, rootElement)) {
        ReactDOMComponentTree$20.precacheNode(instance, rootElement);
        return;
      } else {
        var checksum = rootElement.getAttribute(ReactMarkupChecksum.CHECKSUM_ATTR_NAME);
        rootElement.removeAttribute(ReactMarkupChecksum.CHECKSUM_ATTR_NAME);

        var rootMarkup = rootElement.outerHTML;
        rootElement.setAttribute(ReactMarkupChecksum.CHECKSUM_ATTR_NAME, checksum);

        var normalizedMarkup = markup;
        if (__DEV__) {
          // because rootMarkup is retrieved from the DOM, various normalizations
          // will have occurred which will not be present in `markup`. Here,
          // insert markup into a <div> or <iframe> depending on the container
          // type to perform the same normalizations before comparing.
          var normalizer;
          if (container.nodeType === ELEMENT_NODE_TYPE$1) {
            normalizer = document.createElement('div');
            normalizer.innerHTML = markup;
            normalizedMarkup = normalizer.innerHTML;
          } else {
            normalizer = document.createElement('iframe');
            document.body.appendChild(normalizer);
            normalizer.contentDocument.write(markup);
            normalizedMarkup = normalizer.contentDocument.documentElement.outerHTML;
            document.body.removeChild(normalizer);
          }
        }

        var diffIndex = firstDifferenceIndex(normalizedMarkup, rootMarkup);
        var difference = ' (client) ' + normalizedMarkup.substring(diffIndex - 20, diffIndex + 20) + '\n (server) ' + rootMarkup.substring(diffIndex - 20, diffIndex + 20);

        invariant$29(container.nodeType !== DOC_NODE_TYPE, 'You\'re trying to render a component to the document using ' + 'server rendering but the checksum was invalid. This usually ' + 'means you rendered a different component type or props on ' + 'the client from the one on the server, or your render() ' + 'methods are impure. React cannot handle this case due to ' + 'cross-browser quirks by rendering at the document root. You ' + 'should look for environment dependent code in your components ' + 'and ensure the props are the same client and server side:\n%s', difference);

        if (__DEV__) {
          warning$27(false, 'React attempted to reuse markup in a container but the ' + 'checksum was invalid. This generally means that you are ' + 'using server rendering and the markup generated on the ' + 'server was not what the client was expecting. React injected ' + 'new markup to compensate which works but you have lost many ' + 'of the benefits of server rendering. Instead, figure out ' + 'why the markup being generated is different on the client ' + 'or server:\n%s', difference);
        }
      }
    }

    invariant$29(container.nodeType !== DOC_NODE_TYPE, 'You\'re trying to render a component to the document but ' + 'you didn\'t use server rendering. We can\'t do this ' + 'without using server rendering due to cross-browser quirks. ' + 'See ReactDOMServer.renderToString() for server rendering.');

    if (transaction.useCreateElement) {
      while (container.lastChild) {
        container.removeChild(container.lastChild);
      }
      DOMLazyTree$6.insertTreeBefore(container, markup, null);
    } else {
      setInnerHTML$4(container, markup);
      ReactDOMComponentTree$20.precacheNode(instance, container.firstChild);
    }

    if (__DEV__) {
      var hostNode = ReactDOMComponentTree$20.getInstanceFromNode(container.firstChild);
      if (hostNode._debugID !== 0) {
        ReactInstrumentation$12.debugTool.onHostOperation({
          instanceID: hostNode._debugID,
          type: 'mount',
          payload: markup.toString()
        });
      }
    }
  }
};

var ReactMount_1 = ReactMount$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactVersion
 */

var ReactVersion$1 = '16.0.0-alpha.3';

var DOMProperty$7 = DOMProperty_1;
var EventPluginRegistry$4 = EventPluginRegistry_1;
var ReactComponentTreeHook$5 = ReactComponentTreeHook_1;
var ReactDebugCurrentFiber$1 = ReactDebugCurrentFiber_1;

var warning$28 = warning;

function getStackAddendum$1(debugID) {
  if (debugID != null) {
    // This can only happen on Stack
    return ReactComponentTreeHook$5.getStackAddendumByID(debugID);
  } else {
    // This can only happen on Fiber
    return ReactDebugCurrentFiber$1.getCurrentFiberStackAddendum();
  }
}

if (__DEV__) {
  var reactProps = {
    children: true,
    dangerouslySetInnerHTML: true,
    key: true,
    ref: true,

    autoFocus: true,
    defaultValue: true,
    defaultChecked: true,
    innerHTML: true,
    suppressContentEditableWarning: true,
    onFocusIn: true,
    onFocusOut: true
  };
  var warnedProperties = {};

  var validateProperty = function (tagName, name, debugID) {
    if (DOMProperty$7.properties.hasOwnProperty(name) || DOMProperty$7.isCustomAttribute(name)) {
      return true;
    }
    if (reactProps.hasOwnProperty(name) && reactProps[name] || warnedProperties.hasOwnProperty(name) && warnedProperties[name]) {
      return true;
    }
    if (EventPluginRegistry$4.registrationNameModules.hasOwnProperty(name)) {
      return true;
    }
    warnedProperties[name] = true;
    var lowerCasedName = name.toLowerCase();

    // data-* attributes should be lowercase; suggest the lowercase version
    var standardName = DOMProperty$7.isCustomAttribute(lowerCasedName) ? lowerCasedName : DOMProperty$7.getPossibleStandardName.hasOwnProperty(lowerCasedName) ? DOMProperty$7.getPossibleStandardName[lowerCasedName] : null;

    var registrationName = EventPluginRegistry$4.possibleRegistrationNames.hasOwnProperty(lowerCasedName) ? EventPluginRegistry$4.possibleRegistrationNames[lowerCasedName] : null;

    if (standardName != null) {
      warning$28(false, 'Unknown DOM property %s. Did you mean %s?%s', name, standardName, getStackAddendum$1(debugID));
      return true;
    } else if (registrationName != null) {
      warning$28(false, 'Unknown event handler property %s. Did you mean `%s`?%s', name, registrationName, getStackAddendum$1(debugID));
      return true;
    } else {
      // We were unable to guess which prop the user intended.
      // It is likely that the user was just blindly spreading/forwarding props
      // Components should be careful to only render valid props/attributes.
      // Warning will be invoked in warnUnknownProperties to allow grouping.
      return false;
    }
  };
}

var warnUnknownProperties = function (type, props, debugID) {
  var unknownProps = [];
  for (var key in props) {
    var isValid = validateProperty(type, key, debugID);
    if (!isValid) {
      unknownProps.push(key);
    }
  }

  var unknownPropString = unknownProps.map(function (prop) {
    return '`' + prop + '`';
  }).join(', ');

  if (unknownProps.length === 1) {
    warning$28(false, 'Unknown prop %s on <%s> tag. Remove this prop from the element. ' + 'For details, see https://fb.me/react-unknown-prop%s', unknownPropString, type, getStackAddendum$1(debugID));
  } else if (unknownProps.length > 1) {
    warning$28(false, 'Unknown props %s on <%s> tag. Remove these props from the element. ' + 'For details, see https://fb.me/react-unknown-prop%s', unknownPropString, type, getStackAddendum$1(debugID));
  }
};

function validateProperties(type, props, debugID /* Stack only */) {
  if (type.indexOf('-') >= 0 || props.is) {
    return;
  }
  warnUnknownProperties(type, props, debugID);
}

var ReactDOMUnknownPropertyHook$1 = {
  // Fiber
  validateProperties: validateProperties,
  // Stack
  onBeforeMountComponent: function (debugID, element) {
    if (__DEV__ && element != null && typeof element.type === 'string') {
      validateProperties(element.type, element.props, debugID);
    }
  },
  onBeforeUpdateComponent: function (debugID, element) {
    if (__DEV__ && element != null && typeof element.type === 'string') {
      validateProperties(element.type, element.props, debugID);
    }
  }
};

var ReactDOMUnknownPropertyHook_1 = ReactDOMUnknownPropertyHook$1;

var ReactComponentTreeHook$6 = ReactComponentTreeHook_1;
var ReactDebugCurrentFiber$2 = ReactDebugCurrentFiber_1;

var warning$29 = warning;

var didWarnValueNull = false;

function getStackAddendum$2(debugID) {
  if (debugID != null) {
    // This can only happen on Stack
    return ReactComponentTreeHook$6.getStackAddendumByID(debugID);
  } else {
    // This can only happen on Fiber
    return ReactDebugCurrentFiber$2.getCurrentFiberStackAddendum();
  }
}

function validateProperties$1(type, props, debugID /* Stack only */) {
  if (type !== 'input' && type !== 'textarea' && type !== 'select') {
    return;
  }
  if (props != null && props.value === null && !didWarnValueNull) {
    warning$29(false, '`value` prop on `%s` should not be null. ' + 'Consider using the empty string to clear the component or `undefined` ' + 'for uncontrolled components.%s', type, getStackAddendum$2(debugID));

    didWarnValueNull = true;
  }
}

var ReactDOMNullInputValuePropHook$1 = {
  // Fiber
  validateProperties: validateProperties$1,
  // Stack
  onBeforeMountComponent: function (debugID, element) {
    if (__DEV__ && element != null && typeof element.type === 'string') {
      validateProperties$1(element.type, element.props, debugID);
    }
  },
  onBeforeUpdateComponent: function (debugID, element) {
    if (__DEV__ && element != null && typeof element.type === 'string') {
      validateProperties$1(element.type, element.props, debugID);
    }
  }
};

var ReactDOMNullInputValuePropHook_1 = ReactDOMNullInputValuePropHook$1;

var DOMProperty$8 = DOMProperty_1;
var ReactComponentTreeHook$7 = ReactComponentTreeHook_1;
var ReactDebugCurrentFiber$3 = ReactDebugCurrentFiber_1;

var warning$30 = warning;

var warnedProperties$1 = {};
var rARIA = new RegExp('^(aria)-[' + DOMProperty$8.ATTRIBUTE_NAME_CHAR + ']*$');

function getStackAddendum$3(debugID) {
  if (debugID != null) {
    // This can only happen on Stack
    return ReactComponentTreeHook$7.getStackAddendumByID(debugID);
  } else {
    // This can only happen on Fiber
    return ReactDebugCurrentFiber$3.getCurrentFiberStackAddendum();
  }
}

function validateProperty$1(tagName, name, debugID) {
  if (warnedProperties$1.hasOwnProperty(name) && warnedProperties$1[name]) {
    return true;
  }

  if (rARIA.test(name)) {
    var lowerCasedName = name.toLowerCase();
    var standardName = DOMProperty$8.getPossibleStandardName.hasOwnProperty(lowerCasedName) ? DOMProperty$8.getPossibleStandardName[lowerCasedName] : null;

    // If this is an aria-* attribute, but is not listed in the known DOM
    // DOM properties, then it is an invalid aria-* attribute.
    if (standardName == null) {
      warnedProperties$1[name] = true;
      return false;
    }
    // aria-* attributes should be lowercase; suggest the lowercase version.
    if (name !== standardName) {
      warning$30(false, 'Unknown ARIA attribute %s. Did you mean %s?%s', name, standardName, getStackAddendum$3(debugID));
      warnedProperties$1[name] = true;
      return true;
    }
  }

  return true;
}

function warnInvalidARIAProps(type, props, debugID) {
  var invalidProps = [];

  for (var key in props) {
    var isValid = validateProperty$1(type, key, debugID);
    if (!isValid) {
      invalidProps.push(key);
    }
  }

  var unknownPropString = invalidProps.map(function (prop) {
    return '`' + prop + '`';
  }).join(', ');

  if (invalidProps.length === 1) {
    warning$30(false, 'Invalid aria prop %s on <%s> tag. ' + 'For details, see https://fb.me/invalid-aria-prop%s', unknownPropString, type, getStackAddendum$3(debugID));
  } else if (invalidProps.length > 1) {
    warning$30(false, 'Invalid aria props %s on <%s> tag. ' + 'For details, see https://fb.me/invalid-aria-prop%s', unknownPropString, type, getStackAddendum$3(debugID));
  }
}

function validateProperties$2(type, props, debugID /* Stack only */) {
  if (type.indexOf('-') >= 0 || props.is) {
    return;
  }
  warnInvalidARIAProps(type, props, debugID);
}

var ReactDOMInvalidARIAHook$1 = {
  // Fiber
  validateProperties: validateProperties$2,
  // Stack
  onBeforeMountComponent: function (debugID, element) {
    if (__DEV__ && element != null && typeof element.type === 'string') {
      validateProperties$2(element.type, element.props, debugID);
    }
  },
  onBeforeUpdateComponent: function (debugID, element) {
    if (__DEV__ && element != null && typeof element.type === 'string') {
      validateProperties$2(element.type, element.props, debugID);
    }
  }
};

var ReactDOMInvalidARIAHook_1 = ReactDOMInvalidARIAHook$1;

var ReactDOMComponentTree = ReactDOMComponentTree_1;
var ReactDOMInjection = ReactDOMInjection$1;
var ReactDOMStackInjection = ReactDOMStackInjection$1;
var ReactGenericBatching = ReactGenericBatching_1;
var ReactMount = ReactMount_1;
var ReactReconciler = ReactReconciler_1;
var ReactVersion = ReactVersion$1;

var findDOMNode = findDOMNode_1;
var getHostComponentFromComposite = getHostComponentFromComposite_1;
var warning2 = warning;

ReactDOMInjection.inject();
ReactDOMStackInjection.inject();

var ReactDOM$1 = {
  findDOMNode: findDOMNode,
  render: ReactMount.render,
  unmountComponentAtNode: ReactMount.unmountComponentAtNode,
  version: ReactVersion,

  /* eslint-disable camelcase */
  unstable_batchedUpdates: ReactGenericBatching.batchedUpdates,
  unstable_renderSubtreeIntoContainer: ReactMount.renderSubtreeIntoContainer
};

// Inject the runtime into a devtools global hook regardless of browser.
// Allows for debugging when the hook is injected on the page.
if (typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ !== 'undefined' && typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.inject === 'function') {
  __REACT_DEVTOOLS_GLOBAL_HOOK__.inject({
    ComponentTree: {
      getClosestInstanceFromNode: ReactDOMComponentTree.getClosestInstanceFromNode,
      getNodeFromInstance: function (inst) {
        // inst is an internal instance (but could be a composite)
        if (inst._renderedComponent) {
          inst = getHostComponentFromComposite(inst);
        }
        if (inst) {
          return ReactDOMComponentTree.getNodeFromInstance(inst);
        } else {
          return null;
        }
      }
    },
    Mount: ReactMount,
    Reconciler: ReactReconciler
  });
}

if (__DEV__) {
  var ExecutionEnvironment2 = ExecutionEnvironment;
  if (ExecutionEnvironment2.canUseDOM && window.top === window.self) {

    // First check if devtools is not installed
    if (typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === 'undefined') {
      // If we're in Chrome or Firefox, provide a download link if not installed.
      if (navigator.userAgent.indexOf('Chrome') > -1 && navigator.userAgent.indexOf('Edge') === -1 || navigator.userAgent.indexOf('Firefox') > -1) {
        // Firefox does not have the issue with devtools loaded over file://
        var showFileUrlMessage = window.location.protocol.indexOf('http') === -1 && navigator.userAgent.indexOf('Firefox') === -1;
        console.debug('Download the React DevTools ' + (showFileUrlMessage ? 'and use an HTTP server (instead of a file: URL) ' : '') + 'for a better development experience: ' + 'https://fb.me/react-devtools');
      }
    }

    var testFunc = function testFn() {};
    warning2((testFunc.name || testFunc.toString()).indexOf('testFn') !== -1, 'It looks like you\'re using a minified copy of the development build ' + 'of React. When deploying React apps to production, make sure to use ' + 'the production build which skips development warning2s and is faster. ' + 'See https://fb.me/react-minification for more details.');

    // If we're in IE8, check to see if we are in compatibility mode and provide
    // information on preventing compatibility mode
    var ieCompatibilityMode = document.documentMode && document.documentMode < 8;

    warning2(!ieCompatibilityMode, 'Internet Explorer is running in compatibility mode; please add the ' + 'following tag to your HTML to prevent this from happening: ' + '<meta http-equiv="X-UA-Compatible" content="IE=edge" />');

    var expectedFeatures = [
    // shims
    Array.isArray, Array.prototype.every, Array.prototype.forEach, Array.prototype.indexOf, Array.prototype.map, Date.now, Function.prototype.bind, Object.keys, String.prototype.trim];

    for (var i = 0; i < expectedFeatures.length; i++) {
      if (!expectedFeatures[i]) {
        warning2(false, 'One or more ES5 shims expected by React are not available: ' + 'https://fb.me/react-warning2-polyfills');
        break;
      }
    }
  }
}

if (__DEV__) {
  var ReactInstrumentation = ReactInstrumentation$2;
  var ReactDOMUnknownPropertyHook = ReactDOMUnknownPropertyHook_1;
  var ReactDOMNullInputValuePropHook = ReactDOMNullInputValuePropHook_1;
  var ReactDOMInvalidARIAHook = ReactDOMInvalidARIAHook_1;

  ReactInstrumentation.debugTool.addHook(ReactDOMUnknownPropertyHook);
  ReactInstrumentation.debugTool.addHook(ReactDOMNullInputValuePropHook);
  ReactInstrumentation.debugTool.addHook(ReactDOMInvalidARIAHook);
}

var ReactDOM_1 = ReactDOM$1;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var ReactDebugTool$2 = ReactDebugTool_1;
var warning$31 = warning;
var alreadyWarned = false;

function roundFloat(val) {
  var base = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 2;

  var n = Math.pow(10, base);
  return Math.floor(val * n) / n;
}

// Flow type definition of console.table is too strict right now, see
// https://github.com/facebook/flow/pull/2353 for updates
function consoleTable(table) {
  console.table(table);
}

function warnInProduction() {
  if (alreadyWarned) {
    return;
  }
  alreadyWarned = true;
  if (typeof console !== 'undefined') {
    console.error('ReactPerf is not supported in the production builds of React. ' + 'To collect measurements, please use the development build of React instead.');
  }
}

function getLastMeasurements() {
  if (!__DEV__) {
    warnInProduction();
    return [];
  }

  return ReactDebugTool$2.getFlushHistory();
}

function getExclusive() {
  var flushHistory = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : getLastMeasurements();

  if (!__DEV__) {
    warnInProduction();
    return [];
  }

  var aggregatedStats = {};
  var affectedIDs = {};

  function updateAggregatedStats(treeSnapshot, instanceID, timerType, applyUpdate) {
    var displayName = treeSnapshot[instanceID].displayName;

    var key = displayName;
    var stats = aggregatedStats[key];
    if (!stats) {
      affectedIDs[key] = {};
      stats = aggregatedStats[key] = {
        key: key,
        instanceCount: 0,
        counts: {},
        durations: {},
        totalDuration: 0
      };
    }
    if (!stats.durations[timerType]) {
      stats.durations[timerType] = 0;
    }
    if (!stats.counts[timerType]) {
      stats.counts[timerType] = 0;
    }
    affectedIDs[key][instanceID] = true;
    applyUpdate(stats);
  }

  flushHistory.forEach(function (flush) {
    var measurements = flush.measurements,
        treeSnapshot = flush.treeSnapshot;

    measurements.forEach(function (measurement) {
      var duration = measurement.duration,
          instanceID = measurement.instanceID,
          timerType = measurement.timerType;

      updateAggregatedStats(treeSnapshot, instanceID, timerType, function (stats) {
        stats.totalDuration += duration;
        stats.durations[timerType] += duration;
        stats.counts[timerType]++;
      });
    });
  });

  return Object.keys(aggregatedStats).map(function (key) {
    return _extends({}, aggregatedStats[key], {
      instanceCount: Object.keys(affectedIDs[key]).length
    });
  }).sort(function (a, b) {
    return b.totalDuration - a.totalDuration;
  });
}

function getInclusive() {
  var flushHistory = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : getLastMeasurements();

  if (!__DEV__) {
    warnInProduction();
    return [];
  }

  var aggregatedStats = {};
  var affectedIDs = {};

  function updateAggregatedStats(treeSnapshot, instanceID, applyUpdate) {
    var _treeSnapshot$instanc = treeSnapshot[instanceID],
        displayName = _treeSnapshot$instanc.displayName,
        ownerID = _treeSnapshot$instanc.ownerID;

    var owner = treeSnapshot[ownerID];
    var key = (owner ? owner.displayName + ' > ' : '') + displayName;
    var stats = aggregatedStats[key];
    if (!stats) {
      affectedIDs[key] = {};
      stats = aggregatedStats[key] = {
        key: key,
        instanceCount: 0,
        inclusiveRenderDuration: 0,
        renderCount: 0
      };
    }
    affectedIDs[key][instanceID] = true;
    applyUpdate(stats);
  }

  var isCompositeByID = {};
  flushHistory.forEach(function (flush) {
    var measurements = flush.measurements;

    measurements.forEach(function (measurement) {
      var instanceID = measurement.instanceID,
          timerType = measurement.timerType;

      if (timerType !== 'render') {
        return;
      }
      isCompositeByID[instanceID] = true;
    });
  });

  flushHistory.forEach(function (flush) {
    var measurements = flush.measurements,
        treeSnapshot = flush.treeSnapshot;

    measurements.forEach(function (measurement) {
      var duration = measurement.duration,
          instanceID = measurement.instanceID,
          timerType = measurement.timerType;

      if (timerType !== 'render') {
        return;
      }
      updateAggregatedStats(treeSnapshot, instanceID, function (stats) {
        stats.renderCount++;
      });
      var nextParentID = instanceID;
      while (nextParentID) {
        // As we traverse parents, only count inclusive time towards composites.
        // We know something is a composite if its render() was called.
        if (isCompositeByID[nextParentID]) {
          updateAggregatedStats(treeSnapshot, nextParentID, function (stats) {
            stats.inclusiveRenderDuration += duration;
          });
        }
        nextParentID = treeSnapshot[nextParentID].parentID;
      }
    });
  });

  return Object.keys(aggregatedStats).map(function (key) {
    return _extends({}, aggregatedStats[key], {
      instanceCount: Object.keys(affectedIDs[key]).length
    });
  }).sort(function (a, b) {
    return b.inclusiveRenderDuration - a.inclusiveRenderDuration;
  });
}

function getWasted() {
  var flushHistory = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : getLastMeasurements();

  if (!__DEV__) {
    warnInProduction();
    return [];
  }

  var aggregatedStats = {};
  var affectedIDs = {};

  function updateAggregatedStats(treeSnapshot, instanceID, applyUpdate) {
    var _treeSnapshot$instanc2 = treeSnapshot[instanceID],
        displayName = _treeSnapshot$instanc2.displayName,
        ownerID = _treeSnapshot$instanc2.ownerID;

    var owner = treeSnapshot[ownerID];
    var key = (owner ? owner.displayName + ' > ' : '') + displayName;
    var stats = aggregatedStats[key];
    if (!stats) {
      affectedIDs[key] = {};
      stats = aggregatedStats[key] = {
        key: key,
        instanceCount: 0,
        inclusiveRenderDuration: 0,
        renderCount: 0
      };
    }
    affectedIDs[key][instanceID] = true;
    applyUpdate(stats);
  }

  flushHistory.forEach(function (flush) {
    var measurements = flush.measurements,
        treeSnapshot = flush.treeSnapshot,
        operations = flush.operations;

    var isDefinitelyNotWastedByID = {};

    // Find host components associated with an operation in this batch.
    // Mark all components in their parent tree as definitely not wasted.
    operations.forEach(function (operation) {
      var instanceID = operation.instanceID;

      var nextParentID = instanceID;
      while (nextParentID) {
        isDefinitelyNotWastedByID[nextParentID] = true;
        nextParentID = treeSnapshot[nextParentID].parentID;
      }
    });

    // Find composite components that rendered in this batch.
    // These are potential candidates for being wasted renders.
    var renderedCompositeIDs = {};
    measurements.forEach(function (measurement) {
      var instanceID = measurement.instanceID,
          timerType = measurement.timerType;

      if (timerType !== 'render') {
        return;
      }
      renderedCompositeIDs[instanceID] = true;
    });

    measurements.forEach(function (measurement) {
      var duration = measurement.duration,
          instanceID = measurement.instanceID,
          timerType = measurement.timerType;

      if (timerType !== 'render') {
        return;
      }

      // If there was a DOM update below this component, or it has just been
      // mounted, its render() is not considered wasted.
      var updateCount = treeSnapshot[instanceID].updateCount;

      if (isDefinitelyNotWastedByID[instanceID] || updateCount === 0) {
        return;
      }

      // We consider this render() wasted.
      updateAggregatedStats(treeSnapshot, instanceID, function (stats) {
        stats.renderCount++;
      });

      var nextParentID = instanceID;
      while (nextParentID) {
        // Any parents rendered during this batch are considered wasted
        // unless we previously marked them as dirty.
        var isWasted = renderedCompositeIDs[nextParentID] && !isDefinitelyNotWastedByID[nextParentID];
        if (isWasted) {
          updateAggregatedStats(treeSnapshot, nextParentID, function (stats) {
            stats.inclusiveRenderDuration += duration;
          });
        }
        nextParentID = treeSnapshot[nextParentID].parentID;
      }
    });
  });

  return Object.keys(aggregatedStats).map(function (key) {
    return _extends({}, aggregatedStats[key], {
      instanceCount: Object.keys(affectedIDs[key]).length
    });
  }).sort(function (a, b) {
    return b.inclusiveRenderDuration - a.inclusiveRenderDuration;
  });
}

function getOperations() {
  var flushHistory = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : getLastMeasurements();

  if (!__DEV__) {
    warnInProduction();
    return [];
  }

  var stats = [];
  flushHistory.forEach(function (flush, flushIndex) {
    var operations = flush.operations,
        treeSnapshot = flush.treeSnapshot;

    operations.forEach(function (operation) {
      var instanceID = operation.instanceID,
          type = operation.type,
          payload = operation.payload;
      var _treeSnapshot$instanc3 = treeSnapshot[instanceID],
          displayName = _treeSnapshot$instanc3.displayName,
          ownerID = _treeSnapshot$instanc3.ownerID;

      var owner = treeSnapshot[ownerID];
      var key = (owner ? owner.displayName + ' > ' : '') + displayName;

      stats.push({
        flushIndex: flushIndex,
        instanceID: instanceID,
        key: key,
        type: type,
        ownerID: ownerID,
        payload: payload
      });
    });
  });
  return stats;
}

function printExclusive(flushHistory) {
  if (!__DEV__) {
    warnInProduction();
    return;
  }

  var stats = getExclusive(flushHistory);
  var table = stats.map(function (item) {
    var key = item.key,
        instanceCount = item.instanceCount,
        totalDuration = item.totalDuration;

    var renderCount = item.counts.render || 0;
    var renderDuration = item.durations.render || 0;
    return {
      'Component': key,
      'Total time (ms)': roundFloat(totalDuration),
      'Instance count': instanceCount,
      'Total render time (ms)': roundFloat(renderDuration),
      'Average render time (ms)': renderCount ? roundFloat(renderDuration / renderCount) : undefined,
      'Render count': renderCount,
      'Total lifecycle time (ms)': roundFloat(totalDuration - renderDuration)
    };
  });
  consoleTable(table);
}

function printInclusive(flushHistory) {
  if (!__DEV__) {
    warnInProduction();
    return;
  }

  var stats = getInclusive(flushHistory);
  var table = stats.map(function (item) {
    var key = item.key,
        instanceCount = item.instanceCount,
        inclusiveRenderDuration = item.inclusiveRenderDuration,
        renderCount = item.renderCount;

    return {
      'Owner > Component': key,
      'Inclusive render time (ms)': roundFloat(inclusiveRenderDuration),
      'Instance count': instanceCount,
      'Render count': renderCount
    };
  });
  consoleTable(table);
}

function printWasted(flushHistory) {
  if (!__DEV__) {
    warnInProduction();
    return;
  }

  var stats = getWasted(flushHistory);
  var table = stats.map(function (item) {
    var key = item.key,
        instanceCount = item.instanceCount,
        inclusiveRenderDuration = item.inclusiveRenderDuration,
        renderCount = item.renderCount;

    return {
      'Owner > Component': key,
      'Inclusive wasted time (ms)': roundFloat(inclusiveRenderDuration),
      'Instance count': instanceCount,
      'Render count': renderCount
    };
  });
  consoleTable(table);
}

function printOperations(flushHistory) {
  if (!__DEV__) {
    warnInProduction();
    return;
  }

  var stats = getOperations(flushHistory);
  var table = stats.map(function (stat) {
    return {
      'Owner > Node': stat.key,
      'Operation': stat.type,
      'Payload': typeof stat.payload === 'object' ? JSON.stringify(stat.payload) : stat.payload,
      'Flush index': stat.flushIndex,
      'Owner Component ID': stat.ownerID,
      'DOM Component ID': stat.instanceID
    };
  });
  consoleTable(table);
}

var warnedAboutPrintDOM = false;
function printDOM(measurements) {
  warning$31(warnedAboutPrintDOM, '`ReactPerf.printDOM(...)` is deprecated. Use ' + '`ReactPerf.printOperations(...)` instead.');
  warnedAboutPrintDOM = true;
  return printOperations(measurements);
}

var warnedAboutGetMeasurementsSummaryMap = false;
function getMeasurementsSummaryMap(measurements) {
  warning$31(warnedAboutGetMeasurementsSummaryMap, '`ReactPerf.getMeasurementsSummaryMap(...)` is deprecated. Use ' + '`ReactPerf.getWasted(...)` instead.');
  warnedAboutGetMeasurementsSummaryMap = true;
  return getWasted(measurements);
}

function start() {
  if (!__DEV__) {
    warnInProduction();
    return;
  }

  ReactDebugTool$2.beginProfiling();
}

function stop() {
  if (!__DEV__) {
    warnInProduction();
    return;
  }

  ReactDebugTool$2.endProfiling();
}

function isRunning() {
  if (!__DEV__) {
    warnInProduction();
    return false;
  }

  return ReactDebugTool$2.isProfiling();
}

var ReactPerfAnalysis = {
  getLastMeasurements: getLastMeasurements,
  getExclusive: getExclusive,
  getInclusive: getInclusive,
  getWasted: getWasted,
  getOperations: getOperations,
  printExclusive: printExclusive,
  printInclusive: printInclusive,
  printWasted: printWasted,
  printOperations: printOperations,
  start: start,
  stop: stop,
  isRunning: isRunning,
  // Deprecated:
  printDOM: printDOM,
  getMeasurementsSummaryMap: getMeasurementsSummaryMap
};

var ReactPerf = ReactPerfAnalysis;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule EventConstants
 */

/**
 * Types of raw signals from the browser caught at the top level.
 */
var topLevelTypes$1 = {
  topAbort: null,
  topAnimationEnd: null,
  topAnimationIteration: null,
  topAnimationStart: null,
  topBlur: null,
  topCancel: null,
  topCanPlay: null,
  topCanPlayThrough: null,
  topChange: null,
  topClick: null,
  topClose: null,
  topCompositionEnd: null,
  topCompositionStart: null,
  topCompositionUpdate: null,
  topContextMenu: null,
  topCopy: null,
  topCut: null,
  topDoubleClick: null,
  topDrag: null,
  topDragEnd: null,
  topDragEnter: null,
  topDragExit: null,
  topDragLeave: null,
  topDragOver: null,
  topDragStart: null,
  topDrop: null,
  topDurationChange: null,
  topEmptied: null,
  topEncrypted: null,
  topEnded: null,
  topError: null,
  topFocus: null,
  topInput: null,
  topInvalid: null,
  topKeyDown: null,
  topKeyPress: null,
  topKeyUp: null,
  topLoad: null,
  topLoadedData: null,
  topLoadedMetadata: null,
  topLoadStart: null,
  topMouseDown: null,
  topMouseMove: null,
  topMouseOut: null,
  topMouseOver: null,
  topMouseUp: null,
  topPaste: null,
  topPause: null,
  topPlay: null,
  topPlaying: null,
  topProgress: null,
  topRateChange: null,
  topReset: null,
  topScroll: null,
  topSeeked: null,
  topSeeking: null,
  topSelectionChange: null,
  topStalled: null,
  topSubmit: null,
  topSuspend: null,
  topTextInput: null,
  topTimeUpdate: null,
  topToggle: null,
  topTouchCancel: null,
  topTouchEnd: null,
  topTouchMove: null,
  topTouchStart: null,
  topTransitionEnd: null,
  topVolumeChange: null,
  topWaiting: null,
  topWheel: null
};

var EventConstants$1 = {
  topLevelTypes: topLevelTypes$1
};

var EventConstants_1 = EventConstants$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactTypeOfSideEffect
 *
 */

var ReactTypeOfSideEffect = {
  NoEffect: 0, // 0b0000000
  Placement: 1, // 0b0000001
  Update: 2, // 0b0000010
  PlacementAndUpdate: 3, // 0b0000011
  Deletion: 4, // 0b0000100
  ContentReset: 8, // 0b0001000
  Callback: 16, // 0b0010000
  Err: 32, // 0b0100000
  Ref: 64 };

var ReactInstanceMap$8 = ReactInstanceMap_1;
var ReactCurrentOwner$8 = ReactCurrentOwner_1;

var invariant$32 = invariant;

if (__DEV__) {
  var warning$32 = warning;
}

var _require$8 = ReactTypeOfWork;
var HostRoot$1 = _require$8.HostRoot;
var HostComponent$4 = _require$8.HostComponent;
var HostText$2 = _require$8.HostText;
var ClassComponent$3 = _require$8.ClassComponent;

var _require2 = ReactTypeOfSideEffect;
var NoEffect = _require2.NoEffect;
var Placement = _require2.Placement;

var MOUNTING = 1;
var MOUNTED = 2;
var UNMOUNTED = 3;

function isFiberMountedImpl(fiber) {
  var node = fiber;
  if (!fiber.alternate) {
    // If there is no alternate, this might be a new tree that isn't inserted
    // yet. If it is, then it will have a pending insertion effect on it.
    if ((node.effectTag & Placement) !== NoEffect) {
      return MOUNTING;
    }
    while (node['return']) {
      node = node['return'];
      if ((node.effectTag & Placement) !== NoEffect) {
        return MOUNTING;
      }
    }
  } else {
    while (node['return']) {
      node = node['return'];
    }
  }
  if (node.tag === HostRoot$1) {
    // TODO: Check if this was a nested HostRoot when used with
    // renderContainerIntoSubtree.
    return MOUNTED;
  }
  // If we didn't hit the root, that means that we're in an disconnected tree
  // that has been unmounted.
  return UNMOUNTED;
}
var isFiberMounted = function (fiber) {
  return isFiberMountedImpl(fiber) === MOUNTED;
};

var isMounted = function (component) {
  if (__DEV__) {
    var owner = ReactCurrentOwner$8.current;
    if (owner !== null && owner.tag === ClassComponent$3) {
      var ownerFiber = owner;
      var instance = ownerFiber.stateNode;
      warning$32(instance._warnedAboutRefsInRender, '%s is accessing isMounted inside its render() function. ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', getComponentName$6(ownerFiber));
      instance._warnedAboutRefsInRender = true;
    }
  }

  var fiber = ReactInstanceMap$8.get(component);
  if (!fiber) {
    return false;
  }
  return isFiberMountedImpl(fiber) === MOUNTED;
};

function assertIsMounted(fiber) {
  invariant$32(isFiberMountedImpl(fiber) === MOUNTED, 'Unable to find node on an unmounted component.');
}

function findCurrentFiberUsingSlowPath(fiber) {
  var alternate = fiber.alternate;
  if (!alternate) {
    // If there is no alternate, then we only need to check if it is mounted.
    var state = isFiberMountedImpl(fiber);
    invariant$32(state !== UNMOUNTED, 'Unable to find node on an unmounted component.');
    if (state === MOUNTING) {
      return null;
    }
    return fiber;
  }
  // If we have two possible branches, we'll walk backwards up to the root
  // to see what path the root points to. On the way we may hit one of the
  // special cases and we'll deal with them.
  var a = fiber;
  var b = alternate;
  while (true) {
    var parentA = a['return'];
    var parentB = parentA ? parentA.alternate : null;
    if (!parentA || !parentB) {
      // We're at the root.
      break;
    }

    // If both copies of the parent fiber point to the same child, we can
    // assume that the child is current. This happens when we bailout on low
    // priority: the bailed out fiber's child reuses the current child.
    if (parentA.child === parentB.child) {
      var child = parentA.child;
      while (child) {
        if (child === a) {
          // We've determined that A is the current branch.
          assertIsMounted(parentA);
          return fiber;
        }
        if (child === b) {
          // We've determined that B is the current branch.
          assertIsMounted(parentA);
          return alternate;
        }
        child = child.sibling;
      }
      // We should never have an alternate for any mounting node. So the only
      // way this could possibly happen is if this was unmounted, if at all.
      invariant$32(false, 'Unable to find node on an unmounted component.');
    }

    if (a['return'] !== b['return']) {
      // The return pointer of A and the return pointer of B point to different
      // fibers. We assume that return pointers never criss-cross, so A must
      // belong to the child set of A.return, and B must belong to the child
      // set of B.return.
      a = parentA;
      b = parentB;
    } else {
      // The return pointers pointer to the same fiber. We'll have to use the
      // default, slow path: scan the child sets of each parent alternate to see
      // which child belongs to which set.
      //
      // Search parent A's child set
      var didFindChild = false;
      var _child = parentA.child;
      while (_child) {
        if (_child === a) {
          didFindChild = true;
          a = parentA;
          b = parentB;
          break;
        }
        if (_child === b) {
          didFindChild = true;
          b = parentA;
          a = parentB;
          break;
        }
        _child = _child.sibling;
      }
      if (!didFindChild) {
        // Search parent B's child set
        _child = parentB.child;
        while (_child) {
          if (_child === a) {
            didFindChild = true;
            a = parentB;
            b = parentA;
            break;
          }
          if (_child === b) {
            didFindChild = true;
            b = parentB;
            a = parentA;
            break;
          }
          _child = _child.sibling;
        }
        invariant$32(didFindChild, 'Child was not found in either parent set. This indicates a bug ' + 'related to the return pointer.');
      }
    }

    invariant$32(a.alternate === b, 'Return fibers should always be each others\' alternates.');
  }
  // If the root is not a host container, we're in a disconnected tree. I.e.
  // unmounted.
  invariant$32(a.tag === HostRoot$1, 'Unable to find node on an unmounted component.');
  if (a.stateNode.current === a) {
    // We've determined that A is the current branch.
    return fiber;
  }
  // Otherwise B has to be current branch.
  return alternate;
}
var findCurrentFiberUsingSlowPath_1 = findCurrentFiberUsingSlowPath;

var findCurrentHostFiber = function (parent) {
  var currentParent = findCurrentFiberUsingSlowPath(parent);
  if (!currentParent) {
    return null;
  }

  // Next we'll drill down this component to find the first HostComponent/Text.
  var node = currentParent;
  while (true) {
    if (node.tag === HostComponent$4 || node.tag === HostText$2) {
      return node;
    } else if (node.child) {
      // TODO: If we hit a Portal, we're supposed to skip it.
      node.child['return'] = node;
      node = node.child;
      continue;
    }
    if (node === currentParent) {
      return null;
    }
    while (!node.sibling) {
      if (!node['return'] || node['return'] === currentParent) {
        return null;
      }
      node = node['return'];
    }
    node.sibling['return'] = node['return'];
    node = node.sibling;
  }
  // Flow needs the return null here, but ESLint complains about it.
  // eslint-disable-next-line no-unreachable
  return null;
};

function getComponentName$6(fiber) {
  var type = fiber.type;
  var instance = fiber.stateNode;
  var constructor = instance && instance.constructor;
  return type.displayName || constructor && constructor.displayName || type.name || constructor && constructor.name || 'A Component';
}
var getComponentName_1$2 = getComponentName$6;

var ReactFiberTreeReflection$1 = {
	isFiberMounted: isFiberMounted,
	isMounted: isMounted,
	findCurrentFiberUsingSlowPath: findCurrentFiberUsingSlowPath_1,
	findCurrentHostFiber: findCurrentHostFiber,
	getComponentName: getComponentName_1$2
};

function _classCallCheck$2(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var React$7 = React;
var ReactDOMInjection$3 = ReactDOMInjection$1;
var ReactDOMStackInjection$3 = ReactDOMStackInjection$1;
var ReactCompositeComponent$2 = ReactCompositeComponent_1;
var ReactReconciler$7 = ReactReconciler_1;
var ReactUpdates$5 = ReactUpdates_1;

var emptyObject$4 = emptyObject;
var getNextDebugID$2 = getNextDebugID_1;
var invariant$33 = invariant;

var NoopInternalComponent = function () {
  function NoopInternalComponent(element) {
    _classCallCheck$2(this, NoopInternalComponent);

    this._renderedOutput = element;
    this._currentElement = element;

    if (__DEV__) {
      this._debugID = getNextDebugID$2();
    }
  }

  NoopInternalComponent.prototype.mountComponent = function mountComponent() {};

  NoopInternalComponent.prototype.receiveComponent = function receiveComponent(element) {
    this._renderedOutput = element;
    this._currentElement = element;
  };

  NoopInternalComponent.prototype.unmountComponent = function unmountComponent() {};

  NoopInternalComponent.prototype.getHostNode = function getHostNode() {
    return undefined;
  };

  NoopInternalComponent.prototype.getPublicInstance = function getPublicInstance() {
    return null;
  };

  return NoopInternalComponent;
}();

var ShallowComponentWrapper = function (element) {
  // TODO: Consolidate with instantiateReactComponent
  if (__DEV__) {
    this._debugID = getNextDebugID$2();
  }

  this.construct(element);
};
Object.assign(ShallowComponentWrapper.prototype, ReactCompositeComponent$2, {
  _constructComponent: ReactCompositeComponent$2._constructComponentWithoutOwner,
  _instantiateReactComponent: function (element) {
    return new NoopInternalComponent(element);
  },
  _replaceNodeWithMarkup: function () {},
  _renderValidatedComponent: ReactCompositeComponent$2._renderValidatedComponentWithoutOwnerOrContext
});

function _batchedRender(renderer, element, context) {
  var transaction = ReactUpdates$5.ReactReconcileTransaction.getPooled(true);
  renderer._render(element, transaction, context);
  ReactUpdates$5.ReactReconcileTransaction.release(transaction);
}

var ReactShallowRenderer$1 = function () {
  function ReactShallowRenderer() {
    _classCallCheck$2(this, ReactShallowRenderer);

    this._instance = null;
  }

  ReactShallowRenderer.prototype.getMountedInstance = function getMountedInstance() {
    return this._instance ? this._instance._instance : null;
  };

  ReactShallowRenderer.prototype.render = function render(element, context) {
    // Ensure we've done the default injections. This might not be true in the
    // case of a simple test that only requires React and the TestUtils in
    // conjunction with an inline-requires transform.
    ReactDOMInjection$3.inject();
    ReactDOMStackInjection$3.inject();

    invariant$33(React$7.isValidElement(element), 'ReactShallowRenderer render(): Invalid component element.%s', typeof element === 'function' ? ' Instead of passing a component class, make sure to instantiate ' + 'it by passing it to React.createElement.' : '');
    invariant$33(typeof element.type !== 'string', 'ReactShallowRenderer render(): Shallow rendering works only with custom ' + 'components, not primitives (%s). Instead of calling `.render(el)` and ' + 'inspecting the rendered output, look at `el.props` directly instead.', element.type);

    if (!context) {
      context = emptyObject$4;
    }
    ReactUpdates$5.batchedUpdates(_batchedRender, this, element, context);

    return this.getRenderOutput();
  };

  ReactShallowRenderer.prototype.getRenderOutput = function getRenderOutput() {
    return this._instance && this._instance._renderedComponent && this._instance._renderedComponent._renderedOutput || null;
  };

  ReactShallowRenderer.prototype.unmount = function unmount() {
    if (this._instance) {
      ReactReconciler$7.unmountComponent(this._instance, false, /* safely */
      false /* skipLifecycle */
      );
    }
  };

  ReactShallowRenderer.prototype._render = function _render(element, transaction, context) {
    if (this._instance) {
      ReactReconciler$7.receiveComponent(this._instance, element, transaction, context);
    } else {
      var instance = new ShallowComponentWrapper(element);
      ReactReconciler$7.mountComponent(instance, transaction, null, null, context, 0);
      this._instance = instance;
    }
  };

  return ReactShallowRenderer;
}();

var ReactShallowRenderer_1 = ReactShallowRenderer$1;

var EventConstants = EventConstants_1;
var EventPluginHub$5 = EventPluginHub_1;
var EventPluginRegistry$5 = EventPluginRegistry_1;
var EventPropagators$6 = EventPropagators_1;
var React$6 = React;
var ReactControlledComponent$3 = ReactControlledComponent_1;
var ReactDOM$2 = ReactDOM_1;
var ReactDOMComponentTree$21 = ReactDOMComponentTree_1;
var ReactBrowserEventEmitter$6 = ReactBrowserEventEmitter_1;
var ReactFiberTreeReflection = ReactFiberTreeReflection$1;
var ReactInstanceMap$7 = ReactInstanceMap_1;
var ReactTypeOfWork$4 = ReactTypeOfWork;
var ReactGenericBatching$5 = ReactGenericBatching_1;
var SyntheticEvent$10 = SyntheticEvent_1;
var ReactShallowRenderer = ReactShallowRenderer_1;

var findDOMNode$3 = findDOMNode_1;
var invariant$31 = invariant;

var topLevelTypes = EventConstants.topLevelTypes;
var ClassComponent$2 = ReactTypeOfWork$4.ClassComponent;
var FunctionalComponent$1 = ReactTypeOfWork$4.FunctionalComponent;
var HostComponent$3 = ReactTypeOfWork$4.HostComponent;
var HostText$1 = ReactTypeOfWork$4.HostText;


function Event(suffix) {}

/**
 * @class ReactTestUtils
 */

function findAllInRenderedStackTreeInternal(inst, test) {
  if (!inst || !inst.getPublicInstance) {
    return [];
  }
  var publicInst = inst.getPublicInstance();
  var ret = test(publicInst) ? [publicInst] : [];
  var currentElement = inst._currentElement;
  if (ReactTestUtils.isDOMComponent(publicInst)) {
    var renderedChildren = inst._renderedChildren;
    var key;
    for (key in renderedChildren) {
      if (!renderedChildren.hasOwnProperty(key)) {
        continue;
      }
      ret = ret.concat(findAllInRenderedStackTreeInternal(renderedChildren[key], test));
    }
  } else if (React$6.isValidElement(currentElement) && typeof currentElement.type === 'function') {
    ret = ret.concat(findAllInRenderedStackTreeInternal(inst._renderedComponent, test));
  }
  return ret;
}

function findAllInRenderedFiberTreeInternal(fiber, test) {
  if (!fiber) {
    return [];
  }
  var currentParent = ReactFiberTreeReflection.findCurrentFiberUsingSlowPath(fiber);
  if (!currentParent) {
    return [];
  }
  var node = currentParent;
  var ret = [];
  while (true) {
    if (node.tag === HostComponent$3 || node.tag === HostText$1 || node.tag === ClassComponent$2 || node.tag === FunctionalComponent$1) {
      var publicInst = node.stateNode;
      if (test(publicInst)) {
        ret.push(publicInst);
      }
    }
    if (node.child) {
      node.child['return'] = node;
      node = node.child;
      continue;
    }
    if (node === currentParent) {
      return ret;
    }
    while (!node.sibling) {
      if (!node['return'] || node['return'] === currentParent) {
        return ret;
      }
      node = node['return'];
    }
    node.sibling['return'] = node['return'];
    node = node.sibling;
  }
}

/**
 * Utilities for making it easy to test React components.
 *
 * See https://facebook.github.io/react/docs/test-utils.html
 *
 * Todo: Support the entire DOM.scry query syntax. For now, these simple
 * utilities will suffice for testing purposes.
 * @lends ReactTestUtils
 */
var ReactTestUtils = {
  renderIntoDocument: function (element) {
    var div = document.createElement('div');
    // None of our tests actually require attaching the container to the
    // DOM, and doing so creates a mess that we rely on test isolation to
    // clean up, so we're going to stop honoring the name of this method
    // (and probably rename it eventually) if no problems arise.
    // document.documentElement.appendChild(div);
    return ReactDOM$2.render(element, div);
  },

  isElement: function (element) {
    return React$6.isValidElement(element);
  },

  isElementOfType: function (inst, convenienceConstructor) {
    return React$6.isValidElement(inst) && inst.type === convenienceConstructor;
  },

  isDOMComponent: function (inst) {
    return !!(inst && inst.nodeType === 1 && inst.tagName);
  },

  isDOMComponentElement: function (inst) {
    return !!(inst && React$6.isValidElement(inst) && !!inst.tagName);
  },

  isCompositeComponent: function (inst) {
    if (ReactTestUtils.isDOMComponent(inst)) {
      // Accessing inst.setState warns; just return false as that'll be what
      // this returns when we have DOM nodes as refs directly
      return false;
    }
    return inst != null && typeof inst.render === 'function' && typeof inst.setState === 'function';
  },

  isCompositeComponentWithType: function (inst, type) {
    if (!ReactTestUtils.isCompositeComponent(inst)) {
      return false;
    }
    var internalInstance = ReactInstanceMap$7.get(inst);
    var constructor = typeof internalInstance.tag === 'number' ? internalInstance.type : // Fiber reconciler
    internalInstance._currentElement.type; // Stack reconciler

    return constructor === type;
  },

  // TODO: deprecate? It's undocumented and unused.
  isCompositeComponentElement: function (inst) {
    if (!React$6.isValidElement(inst)) {
      return false;
    }
    // We check the prototype of the type that will get mounted, not the
    // instance itself. This is a future proof way of duck typing.
    var prototype = inst.type.prototype;
    return typeof prototype.render === 'function' && typeof prototype.setState === 'function';
  },

  // TODO: deprecate? It's undocumented and unused.
  isCompositeComponentElementWithType: function (inst, type) {
    var internalInstance = ReactInstanceMap$7.get(inst);
    var constructor = internalInstance._currentElement.type;

    return !!(ReactTestUtils.isCompositeComponentElement(inst) && constructor === type);
  },

  // TODO: deprecate? It's undocumented and unused.
  getRenderedChildOfCompositeComponent: function (inst) {
    if (!ReactTestUtils.isCompositeComponent(inst)) {
      return null;
    }
    var internalInstance = ReactInstanceMap$7.get(inst);
    return internalInstance._renderedComponent.getPublicInstance();
  },

  findAllInRenderedTree: function (inst, test) {
    if (!inst) {
      return [];
    }
    invariant$31(ReactTestUtils.isCompositeComponent(inst), 'findAllInRenderedTree(...): instance must be a composite component');
    var internalInstance = ReactInstanceMap$7.get(inst);
    if (internalInstance && typeof internalInstance.tag === 'number') {
      return findAllInRenderedFiberTreeInternal(internalInstance, test);
    } else {
      return findAllInRenderedStackTreeInternal(internalInstance, test);
    }
  },

  /**
   * Finds all instance of components in the rendered tree that are DOM
   * components with the class name matching `className`.
   * @return {array} an array of all the matches.
   */
  scryRenderedDOMComponentsWithClass: function (root, classNames) {
    return ReactTestUtils.findAllInRenderedTree(root, function (inst) {
      if (ReactTestUtils.isDOMComponent(inst)) {
        var className = inst.className;
        if (typeof className !== 'string') {
          // SVG, probably.
          className = inst.getAttribute('class') || '';
        }
        var classList = className.split(/\s+/);

        if (!Array.isArray(classNames)) {
          invariant$31(classNames !== undefined, 'TestUtils.scryRenderedDOMComponentsWithClass expects a ' + 'className as a second argument.');
          classNames = classNames.split(/\s+/);
        }
        return classNames.every(function (name) {
          return classList.indexOf(name) !== -1;
        });
      }
      return false;
    });
  },

  /**
   * Like scryRenderedDOMComponentsWithClass but expects there to be one result,
   * and returns that one result, or throws exception if there is any other
   * number of matches besides one.
   * @return {!ReactDOMComponent} The one match.
   */
  findRenderedDOMComponentWithClass: function (root, className) {
    var all = ReactTestUtils.scryRenderedDOMComponentsWithClass(root, className);
    if (all.length !== 1) {
      throw new Error('Did not find exactly one match (found: ' + all.length + ') ' + 'for class:' + className);
    }
    return all[0];
  },

  /**
   * Finds all instance of components in the rendered tree that are DOM
   * components with the tag name matching `tagName`.
   * @return {array} an array of all the matches.
   */
  scryRenderedDOMComponentsWithTag: function (root, tagName) {
    return ReactTestUtils.findAllInRenderedTree(root, function (inst) {
      return ReactTestUtils.isDOMComponent(inst) && inst.tagName.toUpperCase() === tagName.toUpperCase();
    });
  },

  /**
   * Like scryRenderedDOMComponentsWithTag but expects there to be one result,
   * and returns that one result, or throws exception if there is any other
   * number of matches besides one.
   * @return {!ReactDOMComponent} The one match.
   */
  findRenderedDOMComponentWithTag: function (root, tagName) {
    var all = ReactTestUtils.scryRenderedDOMComponentsWithTag(root, tagName);
    if (all.length !== 1) {
      throw new Error('Did not find exactly one match (found: ' + all.length + ') ' + 'for tag:' + tagName);
    }
    return all[0];
  },

  /**
   * Finds all instances of components with type equal to `componentType`.
   * @return {array} an array of all the matches.
   */
  scryRenderedComponentsWithType: function (root, componentType) {
    return ReactTestUtils.findAllInRenderedTree(root, function (inst) {
      return ReactTestUtils.isCompositeComponentWithType(inst, componentType);
    });
  },

  /**
   * Same as `scryRenderedComponentsWithType` but expects there to be one result
   * and returns that one result, or throws exception if there is any other
   * number of matches besides one.
   * @return {!ReactComponent} The one match.
   */
  findRenderedComponentWithType: function (root, componentType) {
    var all = ReactTestUtils.scryRenderedComponentsWithType(root, componentType);
    if (all.length !== 1) {
      throw new Error('Did not find exactly one match (found: ' + all.length + ') ' + 'for componentType:' + componentType);
    }
    return all[0];
  },

  /**
   * Pass a mocked component module to this method to augment it with
   * useful methods that allow it to be used as a dummy React component.
   * Instead of rendering as usual, the component will become a simple
   * <div> containing any provided children.
   *
   * @param {object} module the mock function object exported from a
   *                        module that defines the component to be mocked
   * @param {?string} mockTagName optional dummy root tag name to return
   *                              from render method (overrides
   *                              module.mockTagName if provided)
   * @return {object} the ReactTestUtils object (for chaining)
   */
  mockComponent: function (module, mockTagName) {
    mockTagName = mockTagName || module.mockTagName || 'div';

    module.prototype.render.mockImplementation(function () {
      return React$6.createElement(mockTagName, null, this.props.children);
    });

    return this;
  },

  /**
   * Simulates a top level event being dispatched from a raw event that occurred
   * on an `Element` node.
   * @param {Object} topLevelType A type from `EventConstants.topLevelTypes`
   * @param {!Element} node The dom to simulate an event occurring on.
   * @param {?Event} fakeNativeEvent Fake native event to use in SyntheticEvent.
   */
  simulateNativeEventOnNode: function (topLevelType, node, fakeNativeEvent) {
    fakeNativeEvent.target = node;
    ReactBrowserEventEmitter$6.ReactEventListener.dispatchEvent(topLevelType, fakeNativeEvent);
  },

  /**
   * Simulates a top level event being dispatched from a raw event that occurred
   * on the `ReactDOMComponent` `comp`.
   * @param {Object} topLevelType A type from `EventConstants.topLevelTypes`.
   * @param {!ReactDOMComponent} comp
   * @param {?Event} fakeNativeEvent Fake native event to use in SyntheticEvent.
   */
  simulateNativeEventOnDOMComponent: function (topLevelType, comp, fakeNativeEvent) {
    ReactTestUtils.simulateNativeEventOnNode(topLevelType, findDOMNode$3(comp), fakeNativeEvent);
  },

  nativeTouchData: function (x, y) {
    return {
      touches: [{ pageX: x, pageY: y }]
    };
  },

  createRenderer: function () {
    return new ReactShallowRenderer();
  },

  Simulate: null,
  SimulateNative: {}
};

/**
 * Exports:
 *
 * - `ReactTestUtils.Simulate.click(Element/ReactDOMComponent)`
 * - `ReactTestUtils.Simulate.mouseMove(Element/ReactDOMComponent)`
 * - `ReactTestUtils.Simulate.change(Element/ReactDOMComponent)`
 * - ... (All keys from event plugin `eventTypes` objects)
 */
function makeSimulator(eventType) {
  return function (domComponentOrNode, eventData) {
    var node;
    invariant$31(!React$6.isValidElement(domComponentOrNode), 'TestUtils.Simulate expects a component instance and not a ReactElement.' + 'TestUtils.Simulate will not work if you are using shallow rendering.');
    if (ReactTestUtils.isDOMComponent(domComponentOrNode)) {
      node = findDOMNode$3(domComponentOrNode);
    } else if (domComponentOrNode.tagName) {
      node = domComponentOrNode;
    }

    var dispatchConfig = EventPluginRegistry$5.eventNameDispatchConfigs[eventType];

    var fakeNativeEvent = new Event();
    fakeNativeEvent.target = node;
    fakeNativeEvent.type = eventType.toLowerCase();

    // We don't use SyntheticEvent.getPooled in order to not have to worry about
    // properly destroying any properties assigned from `eventData` upon release
    var targetInst = ReactDOMComponentTree$21.getInstanceFromNode(node);
    var event = new SyntheticEvent$10(dispatchConfig, targetInst, fakeNativeEvent, node);

    // Since we aren't using pooling, always persist the event. This will make
    // sure it's marked and won't warn when setting additional properties.
    event.persist();
    Object.assign(event, eventData);

    if (dispatchConfig.phasedRegistrationNames) {
      EventPropagators$6.accumulateTwoPhaseDispatches(event);
    } else {
      EventPropagators$6.accumulateDirectDispatches(event);
    }

    ReactGenericBatching$5.batchedUpdates(function () {
      // Normally extractEvent enqueues a state restore, but we'll just always
      // do that since we we're by-passing it here.
      ReactControlledComponent$3.enqueueStateRestore(node);

      EventPluginHub$5.enqueueEvents(event);
      EventPluginHub$5.processEventQueue(true);
    });
  };
}

function buildSimulators() {
  ReactTestUtils.Simulate = {};

  var eventType;
  for (eventType in EventPluginRegistry$5.eventNameDispatchConfigs) {
    /**
     * @param {!Element|ReactDOMComponent} domComponentOrNode
     * @param {?object} eventData Fake event data to use in SyntheticEvent.
     */
    ReactTestUtils.Simulate[eventType] = makeSimulator(eventType);
  }
}

// Rebuild ReactTestUtils.Simulate whenever event plugins are injected
var oldInjectEventPluginOrder = EventPluginHub$5.injection.injectEventPluginOrder;
EventPluginHub$5.injection.injectEventPluginOrder = function () {
  oldInjectEventPluginOrder.apply(this, arguments);
  buildSimulators();
};
var oldInjectEventPlugins = EventPluginHub$5.injection.injectEventPluginsByName;
EventPluginHub$5.injection.injectEventPluginsByName = function () {
  oldInjectEventPlugins.apply(this, arguments);
  buildSimulators();
};

buildSimulators();

/**
 * Exports:
 *
 * - `ReactTestUtils.SimulateNative.click(Element/ReactDOMComponent)`
 * - `ReactTestUtils.SimulateNative.mouseMove(Element/ReactDOMComponent)`
 * - `ReactTestUtils.SimulateNative.mouseIn/ReactDOMComponent)`
 * - `ReactTestUtils.SimulateNative.mouseOut(Element/ReactDOMComponent)`
 * - ... (All keys from `EventConstants.topLevelTypes`)
 *
 * Note: Top level event types are a subset of the entire set of handler types
 * (which include a broader set of "synthetic" events). For example, onDragDone
 * is a synthetic event. Except when testing an event plugin or React's event
 * handling code specifically, you probably want to use ReactTestUtils.Simulate
 * to dispatch synthetic events.
 */

function makeNativeSimulator(eventType) {
  return function (domComponentOrNode, nativeEventData) {
    var fakeNativeEvent = new Event(eventType);
    Object.assign(fakeNativeEvent, nativeEventData);
    if (ReactTestUtils.isDOMComponent(domComponentOrNode)) {
      ReactTestUtils.simulateNativeEventOnDOMComponent(eventType, domComponentOrNode, fakeNativeEvent);
    } else if (domComponentOrNode.tagName) {
      // Will allow on actual dom nodes.
      ReactTestUtils.simulateNativeEventOnNode(eventType, domComponentOrNode, fakeNativeEvent);
    }
  };
}

Object.keys(topLevelTypes).forEach(function (eventType) {
  // Event type is stored as 'topClick' - we transform that to 'click'
  var convenienceName = eventType.indexOf('top') === 0 ? eventType.charAt(3).toLowerCase() + eventType.substr(4) : eventType;
  /**
   * @param {!Element|ReactDOMComponent} domComponentOrNode
   * @param {?Event} nativeEventData Fake native event to use in SyntheticEvent.
   */
  ReactTestUtils.SimulateNative[convenienceName] = makeNativeSimulator(eventType);
});

var ReactTestUtils_1 = ReactTestUtils;

var React2 = React;
var ReactDOM = ReactDOM_1;

if (__DEV__) {
  ReactDOM.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED = {
    // ReactPerf and ReactTestUtils currently only work with the DOM renderer
    // so we expose them from here, but only in DEV mode.
    ReactPerf: ReactPerf,
    ReactTestUtils: ReactTestUtils_1
  };
}

// Inject ReactDOM into React for the addons UMD build that depends on ReactDOM (TransitionGroup).
// We can remove this after we deprecate and remove the addons UMD build.
if (React2.addons) {
  React2.__SECRET_INJECTED_REACT_DOM_DO_NOT_USE_OR_YOU_WILL_BE_FIRED = ReactDOM;
}

var ReactDOMFBEntry = ReactDOM;

module.exports = ReactDOMFBEntry;

ReactDOMFiber-core.js

/**
  * Copyright 2013-present, Facebook, Inc.
  * All rights reserved.
  *
  * This source code is licensed under the BSD-style license found in the
  * LICENSE file in the root directory of this source tree. An additional grant
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @providesModule ReactDOMFiber-core
  */
'use strict';

var invariant = require('invariant');
var warning = require('warning');
var ExecutionEnvironment = require('ExecutionEnvironment');
var camelizeStyleName = require('camelizeStyleName');
var hyphenateStyleName = require('hyphenateStyleName');
var memoizeStringOnly = require('memoizeStringOnly');
var performanceNow = require('performanceNow');
var React = require('React');
var emptyFunction = require('emptyFunction');
var EventListener = require('EventListener');
var getUnboundedScrollPosition = require('getUnboundedScrollPosition');
var containsNode = require('containsNode');
var focusNode = require('focusNode');
var getActiveElement = require('getActiveElement');
var shallowEqual = require('shallowEqual');
var emptyObject = require('emptyObject');
var createNodesFromMarkup = require('createNodesFromMarkup');

var invariant$1 = invariant;

/**
 * Injectable ordering of event plugins.
 */
var eventPluginOrder = null;

/**
 * Injectable mapping from names to event plugin modules.
 */
var namesToPlugins = {};

/**
 * Recomputes the plugin list using the injected plugins and plugin ordering.
 *
 * @private
 */
function recomputePluginOrdering() {
  if (!eventPluginOrder) {
    // Wait until an `eventPluginOrder` is injected.
    return;
  }
  for (var pluginName in namesToPlugins) {
    var pluginModule = namesToPlugins[pluginName];
    var pluginIndex = eventPluginOrder.indexOf(pluginName);
    invariant$1(pluginIndex > -1, 'EventPluginRegistry: Cannot inject event plugins that do not exist in ' + 'the plugin ordering, `%s`.', pluginName);
    if (EventPluginRegistry$1.plugins[pluginIndex]) {
      continue;
    }
    invariant$1(pluginModule.extractEvents, 'EventPluginRegistry: Event plugins must implement an `extractEvents` ' + 'method, but `%s` does not.', pluginName);
    EventPluginRegistry$1.plugins[pluginIndex] = pluginModule;
    var publishedEvents = pluginModule.eventTypes;
    for (var eventName in publishedEvents) {
      invariant$1(publishEventForPlugin(publishedEvents[eventName], pluginModule, eventName), 'EventPluginRegistry: Failed to publish event `%s` for plugin `%s`.', eventName, pluginName);
    }
  }
}

/**
 * Publishes an event so that it can be dispatched by the supplied plugin.
 *
 * @param {object} dispatchConfig Dispatch configuration for the event.
 * @param {object} PluginModule Plugin publishing the event.
 * @return {boolean} True if the event was successfully published.
 * @private
 */
function publishEventForPlugin(dispatchConfig, pluginModule, eventName) {
  invariant$1(!EventPluginRegistry$1.eventNameDispatchConfigs.hasOwnProperty(eventName), 'EventPluginHub: More than one plugin attempted to publish the same ' + 'event name, `%s`.', eventName);
  EventPluginRegistry$1.eventNameDispatchConfigs[eventName] = dispatchConfig;

  var phasedRegistrationNames = dispatchConfig.phasedRegistrationNames;
  if (phasedRegistrationNames) {
    for (var phaseName in phasedRegistrationNames) {
      if (phasedRegistrationNames.hasOwnProperty(phaseName)) {
        var phasedRegistrationName = phasedRegistrationNames[phaseName];
        publishRegistrationName(phasedRegistrationName, pluginModule, eventName);
      }
    }
    return true;
  } else if (dispatchConfig.registrationName) {
    publishRegistrationName(dispatchConfig.registrationName, pluginModule, eventName);
    return true;
  }
  return false;
}

/**
 * Publishes a registration name that is used to identify dispatched events.
 *
 * @param {string} registrationName Registration name to add.
 * @param {object} PluginModule Plugin publishing the event.
 * @private
 */
function publishRegistrationName(registrationName, pluginModule, eventName) {
  invariant$1(!EventPluginRegistry$1.registrationNameModules[registrationName], 'EventPluginHub: More than one plugin attempted to publish the same ' + 'registration name, `%s`.', registrationName);
  EventPluginRegistry$1.registrationNameModules[registrationName] = pluginModule;
  EventPluginRegistry$1.registrationNameDependencies[registrationName] = pluginModule.eventTypes[eventName].dependencies;

  if (__DEV__) {
    var lowerCasedName = registrationName.toLowerCase();
    EventPluginRegistry$1.possibleRegistrationNames[lowerCasedName] = registrationName;

    if (registrationName === 'onDoubleClick') {
      EventPluginRegistry$1.possibleRegistrationNames.ondblclick = registrationName;
    }
  }
}

/**
 * Registers plugins so that they can extract and dispatch events.
 *
 * @see {EventPluginHub}
 */
var EventPluginRegistry$1 = {

  /**
   * Ordered list of injected plugins.
   */
  plugins: [],

  /**
   * Mapping from event name to dispatch config
   */
  eventNameDispatchConfigs: {},

  /**
   * Mapping from registration name to plugin module
   */
  registrationNameModules: {},

  /**
   * Mapping from registration name to event name
   */
  registrationNameDependencies: {},

  /**
   * Mapping from lowercase registration names to the properly cased version,
   * used to warn in the case of missing event handlers. Available
   * only in __DEV__.
   * @type {Object}
   */
  possibleRegistrationNames: __DEV__ ? {} : null,
  // Trust the developer to only use possibleRegistrationNames in __DEV__

  /**
   * Injects an ordering of plugins (by plugin name). This allows the ordering
   * to be decoupled from injection of the actual plugins so that ordering is
   * always deterministic regardless of packaging, on-the-fly injection, etc.
   *
   * @param {array} InjectedEventPluginOrder
   * @internal
   * @see {EventPluginHub.injection.injectEventPluginOrder}
   */
  injectEventPluginOrder: function (injectedEventPluginOrder) {
    invariant$1(!eventPluginOrder, 'EventPluginRegistry: Cannot inject event plugin ordering more than ' + 'once. You are likely trying to load more than one copy of React.');
    // Clone the ordering so it cannot be dynamically mutated.
    eventPluginOrder = Array.prototype.slice.call(injectedEventPluginOrder);
    recomputePluginOrdering();
  },

  /**
   * Injects plugins to be used by `EventPluginHub`. The plugin names must be
   * in the ordering injected by `injectEventPluginOrder`.
   *
   * Plugins can be injected as part of page initialization or on-the-fly.
   *
   * @param {object} injectedNamesToPlugins Map from names to plugin modules.
   * @internal
   * @see {EventPluginHub.injection.injectEventPluginsByName}
   */
  injectEventPluginsByName: function (injectedNamesToPlugins) {
    var isOrderingDirty = false;
    for (var pluginName in injectedNamesToPlugins) {
      if (!injectedNamesToPlugins.hasOwnProperty(pluginName)) {
        continue;
      }
      var pluginModule = injectedNamesToPlugins[pluginName];
      if (!namesToPlugins.hasOwnProperty(pluginName) || namesToPlugins[pluginName] !== pluginModule) {
        invariant$1(!namesToPlugins[pluginName], 'EventPluginRegistry: Cannot inject two different event plugins ' + 'using the same name, `%s`.', pluginName);
        namesToPlugins[pluginName] = pluginModule;
        isOrderingDirty = true;
      }
    }
    if (isOrderingDirty) {
      recomputePluginOrdering();
    }
  },

  /**
   * Looks up the plugin for the supplied event.
   *
   * @param {object} event A synthetic event.
   * @return {?object} The plugin that created the supplied event.
   * @internal
   */
  getPluginModuleForEvent: function (event) {
    var dispatchConfig = event.dispatchConfig;
    if (dispatchConfig.registrationName) {
      return EventPluginRegistry$1.registrationNameModules[dispatchConfig.registrationName] || null;
    }
    if (dispatchConfig.phasedRegistrationNames !== undefined) {
      // pulling phasedRegistrationNames out of dispatchConfig helps Flow see
      // that it is not undefined.
      var phasedRegistrationNames = dispatchConfig.phasedRegistrationNames;

      for (var phase in phasedRegistrationNames) {
        if (!phasedRegistrationNames.hasOwnProperty(phase)) {
          continue;
        }
        var pluginModule = EventPluginRegistry$1.registrationNameModules[phasedRegistrationNames[phase]];
        if (pluginModule) {
          return pluginModule;
        }
      }
    }
    return null;
  },

  /**
   * Exposed for unit testing.
   * @private
   */
  _resetEventPlugins: function () {
    eventPluginOrder = null;
    for (var pluginName in namesToPlugins) {
      if (namesToPlugins.hasOwnProperty(pluginName)) {
        delete namesToPlugins[pluginName];
      }
    }
    EventPluginRegistry$1.plugins.length = 0;

    var eventNameDispatchConfigs = EventPluginRegistry$1.eventNameDispatchConfigs;
    for (var eventName in eventNameDispatchConfigs) {
      if (eventNameDispatchConfigs.hasOwnProperty(eventName)) {
        delete eventNameDispatchConfigs[eventName];
      }
    }

    var registrationNameModules = EventPluginRegistry$1.registrationNameModules;
    for (var registrationName in registrationNameModules) {
      if (registrationNameModules.hasOwnProperty(registrationName)) {
        delete registrationNameModules[registrationName];
      }
    }

    if (__DEV__) {
      var possibleRegistrationNames = EventPluginRegistry$1.possibleRegistrationNames;
      for (var lowerCasedName in possibleRegistrationNames) {
        if (possibleRegistrationNames.hasOwnProperty(lowerCasedName)) {
          delete possibleRegistrationNames[lowerCasedName];
        }
      }
    }
  }

};

var EventPluginRegistry_1 = EventPluginRegistry$1;

/**
* Copyright 2013-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @providesModule ReactErrorUtils
*
*/

var caughtError = null;

/**
 * Call a function while guarding against errors that happens within it.
 * Returns an error if it throws, otherwise null.
 *
 * @param {String} name of the guard to use for logging or debugging
 * @param {Function} func The function to invoke
 * @param {*} context The context to use when calling the function
 * @param {...*} args Arguments for function
 */
var ReactErrorUtils$2 = {
  invokeGuardedCallback: function (name, func, context, a, b, c, d, e, f) {
    var funcArgs = Array.prototype.slice.call(arguments, 3);
    try {
      func.apply(context, funcArgs);
    } catch (error) {
      return error;
    }
    return null;
  },

  /**
   * Same as invokeGuardedCallback, but instead of returning an error, it stores
   * it in a global so it can be rethrown by `rethrowCaughtError` later.
   *
   * @param {String} name of the guard to use for logging or debugging
   * @param {Function} func The function to invoke
   * @param {*} context The context to use when calling the function
   * @param {...*} args Arguments for function
   */
  invokeGuardedCallbackAndCatchFirstError: function (name, func, context, a, b, c, d, e, f) {
    var error = ReactErrorUtils$2.invokeGuardedCallback.apply(this, arguments);
    if (error !== null && caughtError === null) {
      caughtError = error;
    }
  },

  /**
   * During execution of guarded functions we will capture the first error which
   * we will rethrow to be handled by the top level error handler.
   */
  rethrowCaughtError: function () {
    if (caughtError) {
      var error = caughtError;
      caughtError = null;
      throw error;
    }
  }
};

if (__DEV__) {
  /**
   * To help development we can get better devtools integration by simulating a
   * real browser event.
   */
  if (typeof window !== 'undefined' && typeof window.dispatchEvent === 'function' && typeof document !== 'undefined' && typeof document.createEvent === 'function') {

    var fakeNode = document.createElement('React');
    var depth = 0;

    ReactErrorUtils$2.invokeGuardedCallback = function (name, func, context, a, b, c, d, e, f) {
      depth++;
      var thisDepth = depth;
      var funcArgs = Array.prototype.slice.call(arguments, 3);
      var boundFunc = function () {
        func.apply(context, funcArgs);
      };
      var fakeEventError = null;
      var onFakeEventError = function (event) {
        // Don't capture nested errors
        if (depth === thisDepth) {
          fakeEventError = event.error;
        }
      };
      var evtType = 'react-' + (name ? name : 'invokeguardedcallback') + '-' + depth;
      window.addEventListener('error', onFakeEventError);
      fakeNode.addEventListener(evtType, boundFunc, false);
      var evt = document.createEvent('Event');
      evt.initEvent(evtType, false, false);
      fakeNode.dispatchEvent(evt);
      fakeNode.removeEventListener(evtType, boundFunc, false);
      window.removeEventListener('error', onFakeEventError);
      depth--;
      return fakeEventError;
    };
  }
}

var ReactErrorUtils_1 = ReactErrorUtils$2;

var ReactErrorUtils$1 = ReactErrorUtils_1;

var invariant$3 = invariant;
var warning$1 = warning;

/**
 * Injected dependencies:
 */

/**
 * - `ComponentTree`: [required] Module that can convert between React instances
 *   and actual node references.
 */
var ComponentTree;
var injection = {
  injectComponentTree: function (Injected) {
    ComponentTree = Injected;
    if (__DEV__) {
      warning$1(Injected && Injected.getNodeFromInstance && Injected.getInstanceFromNode, 'EventPluginUtils.injection.injectComponentTree(...): Injected ' + 'module is missing getNodeFromInstance or getInstanceFromNode.');
    }
  }
};

function isEndish(topLevelType) {
  return topLevelType === 'topMouseUp' || topLevelType === 'topTouchEnd' || topLevelType === 'topTouchCancel';
}

function isMoveish(topLevelType) {
  return topLevelType === 'topMouseMove' || topLevelType === 'topTouchMove';
}
function isStartish(topLevelType) {
  return topLevelType === 'topMouseDown' || topLevelType === 'topTouchStart';
}

var validateEventDispatches;
if (__DEV__) {
  validateEventDispatches = function (event) {
    var dispatchListeners = event._dispatchListeners;
    var dispatchInstances = event._dispatchInstances;

    var listenersIsArr = Array.isArray(dispatchListeners);
    var listenersLen = listenersIsArr ? dispatchListeners.length : dispatchListeners ? 1 : 0;

    var instancesIsArr = Array.isArray(dispatchInstances);
    var instancesLen = instancesIsArr ? dispatchInstances.length : dispatchInstances ? 1 : 0;

    warning$1(instancesIsArr === listenersIsArr && instancesLen === listenersLen, 'EventPluginUtils: Invalid `event`.');
  };
}

/**
 * Dispatch the event to the listener.
 * @param {SyntheticEvent} event SyntheticEvent to handle
 * @param {boolean} simulated If the event is simulated (changes exn behavior)
 * @param {function} listener Application-level callback
 * @param {*} inst Internal component instance
 */
function executeDispatch(event, simulated, listener, inst) {
  var type = event.type || 'unknown-event';
  event.currentTarget = EventPluginUtils$1.getNodeFromInstance(inst);
  ReactErrorUtils$1.invokeGuardedCallbackAndCatchFirstError(type, listener, undefined, event);
  event.currentTarget = null;
}

/**
 * Standard/simple iteration through an event's collected dispatches.
 */
function executeDispatchesInOrder(event, simulated) {
  var dispatchListeners = event._dispatchListeners;
  var dispatchInstances = event._dispatchInstances;
  if (__DEV__) {
    validateEventDispatches(event);
  }
  if (Array.isArray(dispatchListeners)) {
    for (var i = 0; i < dispatchListeners.length; i++) {
      if (event.isPropagationStopped()) {
        break;
      }
      // Listeners and Instances are two parallel arrays that are always in sync.
      executeDispatch(event, simulated, dispatchListeners[i], dispatchInstances[i]);
    }
  } else if (dispatchListeners) {
    executeDispatch(event, simulated, dispatchListeners, dispatchInstances);
  }
  event._dispatchListeners = null;
  event._dispatchInstances = null;
}

/**
 * Standard/simple iteration through an event's collected dispatches, but stops
 * at the first dispatch execution returning true, and returns that id.
 *
 * @return {?string} id of the first dispatch execution who's listener returns
 * true, or null if no listener returned true.
 */
function executeDispatchesInOrderStopAtTrueImpl(event) {
  var dispatchListeners = event._dispatchListeners;
  var dispatchInstances = event._dispatchInstances;
  if (__DEV__) {
    validateEventDispatches(event);
  }
  if (Array.isArray(dispatchListeners)) {
    for (var i = 0; i < dispatchListeners.length; i++) {
      if (event.isPropagationStopped()) {
        break;
      }
      // Listeners and Instances are two parallel arrays that are always in sync.
      if (dispatchListeners[i](event, dispatchInstances[i])) {
        return dispatchInstances[i];
      }
    }
  } else if (dispatchListeners) {
    if (dispatchListeners(event, dispatchInstances)) {
      return dispatchInstances;
    }
  }
  return null;
}

/**
 * @see executeDispatchesInOrderStopAtTrueImpl
 */
function executeDispatchesInOrderStopAtTrue(event) {
  var ret = executeDispatchesInOrderStopAtTrueImpl(event);
  event._dispatchInstances = null;
  event._dispatchListeners = null;
  return ret;
}

/**
 * Execution of a "direct" dispatch - there must be at most one dispatch
 * accumulated on the event or it is considered an error. It doesn't really make
 * sense for an event with multiple dispatches (bubbled) to keep track of the
 * return values at each dispatch execution, but it does tend to make sense when
 * dealing with "direct" dispatches.
 *
 * @return {*} The return value of executing the single dispatch.
 */
function executeDirectDispatch(event) {
  if (__DEV__) {
    validateEventDispatches(event);
  }
  var dispatchListener = event._dispatchListeners;
  var dispatchInstance = event._dispatchInstances;
  invariant$3(!Array.isArray(dispatchListener), 'executeDirectDispatch(...): Invalid `event`.');
  event.currentTarget = dispatchListener ? EventPluginUtils$1.getNodeFromInstance(dispatchInstance) : null;
  var res = dispatchListener ? dispatchListener(event) : null;
  event.currentTarget = null;
  event._dispatchListeners = null;
  event._dispatchInstances = null;
  return res;
}

/**
 * @param {SyntheticEvent} event
 * @return {boolean} True iff number of dispatches accumulated is greater than 0.
 */
function hasDispatches(event) {
  return !!event._dispatchListeners;
}

/**
 * General utilities that are useful in creating custom Event Plugins.
 */
var EventPluginUtils$1 = {
  isEndish: isEndish,
  isMoveish: isMoveish,
  isStartish: isStartish,

  executeDirectDispatch: executeDirectDispatch,
  executeDispatchesInOrder: executeDispatchesInOrder,
  executeDispatchesInOrderStopAtTrue: executeDispatchesInOrderStopAtTrue,
  hasDispatches: hasDispatches,

  getFiberCurrentPropsFromNode: function (node) {
    return ComponentTree.getFiberCurrentPropsFromNode(node);
  },
  getInstanceFromNode: function (node) {
    return ComponentTree.getInstanceFromNode(node);
  },
  getNodeFromInstance: function (node) {
    return ComponentTree.getNodeFromInstance(node);
  },

  injection: injection
};

var EventPluginUtils_1 = EventPluginUtils$1;

var invariant$4 = invariant;

/**
 * Accumulates items that must not be null or undefined into the first one. This
 * is used to conserve memory by avoiding array allocations, and thus sacrifices
 * API cleanness. Since `current` can be null before being passed in and not
 * null after this function, make sure to assign it back to `current`:
 *
 * `a = accumulateInto(a, b);`
 *
 * This API should be sparingly used. Try `accumulate` for something cleaner.
 *
 * @return {*|array<*>} An accumulation of items.
 */

function accumulateInto$1(current, next) {
  invariant$4(next != null, 'accumulateInto(...): Accumulated items must not be null or undefined.');

  if (current == null) {
    return next;
  }

  // Both are not empty. Warning: Never call x.concat(y) when you are not
  // certain that x is an Array (x could be a string with concat method).
  if (Array.isArray(current)) {
    if (Array.isArray(next)) {
      current.push.apply(current, next);
      return current;
    }
    current.push(next);
    return current;
  }

  if (Array.isArray(next)) {
    // A bit too dangerous to mutate `next`.
    return [current].concat(next);
  }

  return [current, next];
}

var accumulateInto_1 = accumulateInto$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule forEachAccumulated
 *
 */

/**
 * @param {array} arr an "accumulation" of items which is either an Array or
 * a single item. Useful when paired with the `accumulate` module. This is a
 * simple utility that allows us to reason about a collection of items, but
 * handling the case when there is exactly one item (and we do not need to
 * allocate an array).
 * @param {function} cb Callback invoked with each element or a collection.
 * @param {?} [scope] Scope used as `this` in a callback.
 */

function forEachAccumulated$1(arr, cb, scope) {
  if (Array.isArray(arr)) {
    arr.forEach(cb, scope);
  } else if (arr) {
    cb.call(scope, arr);
  }
}

var forEachAccumulated_1 = forEachAccumulated$1;

var EventPluginRegistry$2 = EventPluginRegistry_1;
var EventPluginUtils = EventPluginUtils_1;
var ReactErrorUtils = ReactErrorUtils_1;

var accumulateInto = accumulateInto_1;
var forEachAccumulated = forEachAccumulated_1;
var invariant$2 = invariant;

/**
 * Internal queue of events that have accumulated their dispatches and are
 * waiting to have their dispatches executed.
 */
var eventQueue = null;

/**
 * Dispatches an event and releases it back into the pool, unless persistent.
 *
 * @param {?object} event Synthetic event to be dispatched.
 * @param {boolean} simulated If the event is simulated (changes exn behavior)
 * @private
 */
var executeDispatchesAndRelease = function (event, simulated) {
  if (event) {
    EventPluginUtils.executeDispatchesInOrder(event, simulated);

    if (!event.isPersistent()) {
      event.constructor.release(event);
    }
  }
};
var executeDispatchesAndReleaseSimulated = function (e) {
  return executeDispatchesAndRelease(e, true);
};
var executeDispatchesAndReleaseTopLevel = function (e) {
  return executeDispatchesAndRelease(e, false);
};

function isInteractive(tag) {
  return tag === 'button' || tag === 'input' || tag === 'select' || tag === 'textarea';
}

function shouldPreventMouseEvent(name, type, props) {
  switch (name) {
    case 'onClick':
    case 'onClickCapture':
    case 'onDoubleClick':
    case 'onDoubleClickCapture':
    case 'onMouseDown':
    case 'onMouseDownCapture':
    case 'onMouseMove':
    case 'onMouseMoveCapture':
    case 'onMouseUp':
    case 'onMouseUpCapture':
      return !!(props.disabled && isInteractive(type));
    default:
      return false;
  }
}

/**
 * This is a unified interface for event plugins to be installed and configured.
 *
 * Event plugins can implement the following properties:
 *
 *   `extractEvents` {function(string, DOMEventTarget, string, object): *}
 *     Required. When a top-level event is fired, this method is expected to
 *     extract synthetic events that will in turn be queued and dispatched.
 *
 *   `eventTypes` {object}
 *     Optional, plugins that fire events must publish a mapping of registration
 *     names that are used to register listeners. Values of this mapping must
 *     be objects that contain `registrationName` or `phasedRegistrationNames`.
 *
 *   `executeDispatch` {function(object, function, string)}
 *     Optional, allows plugins to override how an event gets dispatched. By
 *     default, the listener is simply invoked.
 *
 * Each plugin that is injected into `EventsPluginHub` is immediately operable.
 *
 * @public
 */
var EventPluginHub$1 = {

  /**
   * Methods for injecting dependencies.
   */
  injection: {

    /**
     * @param {array} InjectedEventPluginOrder
     * @public
     */
    injectEventPluginOrder: EventPluginRegistry$2.injectEventPluginOrder,

    /**
     * @param {object} injectedNamesToPlugins Map from names to plugin modules.
     */
    injectEventPluginsByName: EventPluginRegistry$2.injectEventPluginsByName

  },

  /**
   * @param {object} inst The instance, which is the source of events.
   * @param {string} registrationName Name of listener (e.g. `onClick`).
   * @return {?function} The stored callback.
   */
  getListener: function (inst, registrationName) {
    var listener;

    // TODO: shouldPreventMouseEvent is DOM-specific and definitely should not
    // live here; needs to be moved to a better place soon
    if (typeof inst.tag === 'number') {
      var props = EventPluginUtils.getFiberCurrentPropsFromNode(inst.stateNode);
      if (!props) {
        // Work in progress.
        return null;
      }
      listener = props[registrationName];
      if (shouldPreventMouseEvent(registrationName, inst.type, props)) {
        return null;
      }
    } else {
      if (typeof inst._currentElement === 'string') {
        // Text node, let it bubble through.
        return null;
      }
      if (!inst._rootNodeID) {
        // If the instance is already unmounted, we have no listeners.
        return null;
      }
      var _props = inst._currentElement.props;
      listener = _props[registrationName];
      if (shouldPreventMouseEvent(registrationName, inst._currentElement.type, _props)) {
        return null;
      }
    }

    invariant$2(!listener || typeof listener === 'function', 'Expected %s listener to be a function, instead got type %s', registrationName, typeof listener);
    return listener;
  },

  /**
   * Allows registered plugins an opportunity to extract events from top-level
   * native browser events.
   *
   * @return {*} An accumulation of synthetic events.
   * @internal
   */
  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    var events;
    var plugins = EventPluginRegistry$2.plugins;
    for (var i = 0; i < plugins.length; i++) {
      // Not every plugin in the ordering may be loaded at runtime.
      var possiblePlugin = plugins[i];
      if (possiblePlugin) {
        var extractedEvents = possiblePlugin.extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget);
        if (extractedEvents) {
          events = accumulateInto(events, extractedEvents);
        }
      }
    }
    return events;
  },

  /**
   * Enqueues a synthetic event that should be dispatched when
   * `processEventQueue` is invoked.
   *
   * @param {*} events An accumulation of synthetic events.
   * @internal
   */
  enqueueEvents: function (events) {
    if (events) {
      eventQueue = accumulateInto(eventQueue, events);
    }
  },

  /**
   * Dispatches all synthetic events on the event queue.
   *
   * @internal
   */
  processEventQueue: function (simulated) {
    // Set `eventQueue` to null before processing it so that we can tell if more
    // events get enqueued while processing.
    var processingEventQueue = eventQueue;
    eventQueue = null;
    if (simulated) {
      forEachAccumulated(processingEventQueue, executeDispatchesAndReleaseSimulated);
    } else {
      forEachAccumulated(processingEventQueue, executeDispatchesAndReleaseTopLevel);
    }
    invariant$2(!eventQueue, 'processEventQueue(): Additional events were enqueued while processing ' + 'an event queue. Support for this has not yet been implemented.');
    // This would be a good time to rethrow if any of the event handlers threw.
    ReactErrorUtils.rethrowCaughtError();
  }

};

var EventPluginHub_1 = EventPluginHub$1;

var EventPluginHub = EventPluginHub_1;

function runEventQueueInBatch(events) {
  EventPluginHub.enqueueEvents(events);
  EventPluginHub.processEventQueue(false);
}

var ReactEventEmitterMixin$1 = {

  /**
   * Streams a fired top-level event to `EventPluginHub` where plugins have the
   * opportunity to create `ReactEvent`s to be dispatched.
   */
  handleTopLevel: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    var events = EventPluginHub.extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget);
    runEventQueueInBatch(events);
  }
};

var ReactEventEmitterMixin_1 = ReactEventEmitterMixin$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ViewportMetrics
 */

var ViewportMetrics$1 = {

  currentScrollLeft: 0,

  currentScrollTop: 0,

  refreshScrollValues: function (scrollPosition) {
    ViewportMetrics$1.currentScrollLeft = scrollPosition.x;
    ViewportMetrics$1.currentScrollTop = scrollPosition.y;
  }

};

var ViewportMetrics_1 = ViewportMetrics$1;

var ExecutionEnvironment2 = ExecutionEnvironment;

/**
 * Generate a mapping of standard vendor prefixes using the defined style property and event name.
 *
 * @param {string} styleProp
 * @param {string} eventName
 * @returns {object}
 */
function makePrefixMap(styleProp, eventName) {
  var prefixes = {};

  prefixes[styleProp.toLowerCase()] = eventName.toLowerCase();
  prefixes['Webkit' + styleProp] = 'webkit' + eventName;
  prefixes['Moz' + styleProp] = 'moz' + eventName;
  prefixes['ms' + styleProp] = 'MS' + eventName;
  prefixes['O' + styleProp] = 'o' + eventName.toLowerCase();

  return prefixes;
}

/**
 * A list of event names to a configurable list of vendor prefixes.
 */
var vendorPrefixes = {
  animationend: makePrefixMap('Animation', 'AnimationEnd'),
  animationiteration: makePrefixMap('Animation', 'AnimationIteration'),
  animationstart: makePrefixMap('Animation', 'AnimationStart'),
  transitionend: makePrefixMap('Transition', 'TransitionEnd')
};

/**
 * Event names that have already been detected and prefixed (if applicable).
 */
var prefixedEventNames = {};

/**
 * Element to check for prefixes on.
 */
var style = {};

/**
 * Bootstrap if a DOM exists.
 */
if (ExecutionEnvironment2.canUseDOM) {
  style = document.createElement('div').style;

  // On some platforms, in particular some releases of Android 4.x,
  // the un-prefixed "animation" and "transition" properties are defined on the
  // style object but the events that fire will still be prefixed, so we need
  // to check if the un-prefixed events are usable, and if not remove them from the map.
  if (!('AnimationEvent' in window)) {
    delete vendorPrefixes.animationend.animation;
    delete vendorPrefixes.animationiteration.animation;
    delete vendorPrefixes.animationstart.animation;
  }

  // Same as above
  if (!('TransitionEvent' in window)) {
    delete vendorPrefixes.transitionend.transition;
  }
}

/**
 * Attempts to determine the correct vendor prefixed event name.
 *
 * @param {string} eventName
 * @returns {string}
 */
function getVendorPrefixedEventName$1(eventName) {
  if (prefixedEventNames[eventName]) {
    return prefixedEventNames[eventName];
  } else if (!vendorPrefixes[eventName]) {
    return eventName;
  }

  var prefixMap = vendorPrefixes[eventName];

  for (var styleProp in prefixMap) {
    if (prefixMap.hasOwnProperty(styleProp) && styleProp in style) {
      return prefixedEventNames[eventName] = prefixMap[styleProp];
    }
  }

  return '';
}

var getVendorPrefixedEventName_1 = getVendorPrefixedEventName$1;

var ExecutionEnvironment$1 = ExecutionEnvironment;

var useHasFeature;
if (ExecutionEnvironment$1.canUseDOM) {
  useHasFeature = document.implementation && document.implementation.hasFeature &&
  // always returns true in newer browsers as per the standard.
  // @see http://dom.spec.whatwg.org/#dom-domimplementation-hasfeature
  document.implementation.hasFeature('', '') !== true;
}

/**
 * Checks if an event is supported in the current execution environment.
 *
 * NOTE: This will not work correctly for non-generic events such as `change`,
 * `reset`, `load`, `error`, and `select`.
 *
 * Borrows from Modernizr.
 *
 * @param {string} eventNameSuffix Event name, e.g. "click".
 * @param {?boolean} capture Check if the capture phase is supported.
 * @return {boolean} True if the event is supported.
 * @internal
 * @license Modernizr 3.0.0pre (Custom Build) | MIT
 */
function isEventSupported$1(eventNameSuffix, capture) {
  if (!ExecutionEnvironment$1.canUseDOM || capture && !('addEventListener' in document)) {
    return false;
  }

  var eventName = 'on' + eventNameSuffix;
  var isSupported = eventName in document;

  if (!isSupported) {
    var element = document.createElement('div');
    element.setAttribute(eventName, 'return;');
    isSupported = typeof element[eventName] === 'function';
  }

  if (!isSupported && useHasFeature && eventNameSuffix === 'wheel') {
    // This is the only way to test support for the `wheel` event in IE9+.
    isSupported = document.implementation.hasFeature('Events.wheel', '3.0');
  }

  return isSupported;
}

var isEventSupported_1 = isEventSupported$1;

var EventPluginRegistry = EventPluginRegistry_1;
var ReactEventEmitterMixin = ReactEventEmitterMixin_1;
var ViewportMetrics = ViewportMetrics_1;

var getVendorPrefixedEventName = getVendorPrefixedEventName_1;
var isEventSupported = isEventSupported_1;

/**
 * Summary of `ReactBrowserEventEmitter` event handling:
 *
 *  - Top-level delegation is used to trap most native browser events. This
 *    may only occur in the main thread and is the responsibility of
 *    ReactEventListener, which is injected and can therefore support pluggable
 *    event sources. This is the only work that occurs in the main thread.
 *
 *  - We normalize and de-duplicate events to account for browser quirks. This
 *    may be done in the worker thread.
 *
 *  - Forward these native events (with the associated top-level type used to
 *    trap it) to `EventPluginHub`, which in turn will ask plugins if they want
 *    to extract any synthetic events.
 *
 *  - The `EventPluginHub` will then process each event by annotating them with
 *    "dispatches", a sequence of listeners and IDs that care about that event.
 *
 *  - The `EventPluginHub` then dispatches the events.
 *
 * Overview of React and the event system:
 *
 * +------------+    .
 * |    DOM     |    .
 * +------------+    .
 *       |           .
 *       v           .
 * +------------+    .
 * | ReactEvent |    .
 * |  Listener  |    .
 * +------------+    .                         +-----------+
 *       |           .               +--------+|SimpleEvent|
 *       |           .               |         |Plugin     |
 * +-----|------+    .               v         +-----------+
 * |     |      |    .    +--------------+                    +------------+
 * |     +-----------.--->|EventPluginHub|                    |    Event   |
 * |            |    .    |              |     +-----------+  | Propagators|
 * | ReactEvent |    .    |              |     |TapEvent   |  |------------|
 * |  Emitter   |    .    |              |<---+|Plugin     |  |other plugin|
 * |            |    .    |              |     +-----------+  |  utilities |
 * |     +-----------.--->|              |                    +------------+
 * |     |      |    .    +--------------+
 * +-----|------+    .                ^        +-----------+
 *       |           .                |        |Enter/Leave|
 *       +           .                +-------+|Plugin     |
 * +-------------+   .                         +-----------+
 * | application |   .
 * |-------------|   .
 * |             |   .
 * |             |   .
 * +-------------+   .
 *                   .
 *    React Core     .  General Purpose Event Plugin System
 */

var hasEventPageXY;
var alreadyListeningTo = {};
var isMonitoringScrollValue = false;
var reactTopListenersCounter = 0;

// For events like 'submit' which don't consistently bubble (which we trap at a
// lower node than `document`), binding at `document` would cause duplicate
// events so we don't include them here
var topEventMapping = {
  topAbort: 'abort',
  topAnimationEnd: getVendorPrefixedEventName('animationend') || 'animationend',
  topAnimationIteration: getVendorPrefixedEventName('animationiteration') || 'animationiteration',
  topAnimationStart: getVendorPrefixedEventName('animationstart') || 'animationstart',
  topBlur: 'blur',
  topCancel: 'cancel',
  topCanPlay: 'canplay',
  topCanPlayThrough: 'canplaythrough',
  topChange: 'change',
  topClick: 'click',
  topClose: 'close',
  topCompositionEnd: 'compositionend',
  topCompositionStart: 'compositionstart',
  topCompositionUpdate: 'compositionupdate',
  topContextMenu: 'contextmenu',
  topCopy: 'copy',
  topCut: 'cut',
  topDoubleClick: 'dblclick',
  topDrag: 'drag',
  topDragEnd: 'dragend',
  topDragEnter: 'dragenter',
  topDragExit: 'dragexit',
  topDragLeave: 'dragleave',
  topDragOver: 'dragover',
  topDragStart: 'dragstart',
  topDrop: 'drop',
  topDurationChange: 'durationchange',
  topEmptied: 'emptied',
  topEncrypted: 'encrypted',
  topEnded: 'ended',
  topError: 'error',
  topFocus: 'focus',
  topInput: 'input',
  topKeyDown: 'keydown',
  topKeyPress: 'keypress',
  topKeyUp: 'keyup',
  topLoadedData: 'loadeddata',
  topLoadedMetadata: 'loadedmetadata',
  topLoadStart: 'loadstart',
  topMouseDown: 'mousedown',
  topMouseMove: 'mousemove',
  topMouseOut: 'mouseout',
  topMouseOver: 'mouseover',
  topMouseUp: 'mouseup',
  topPaste: 'paste',
  topPause: 'pause',
  topPlay: 'play',
  topPlaying: 'playing',
  topProgress: 'progress',
  topRateChange: 'ratechange',
  topScroll: 'scroll',
  topSeeked: 'seeked',
  topSeeking: 'seeking',
  topSelectionChange: 'selectionchange',
  topStalled: 'stalled',
  topSuspend: 'suspend',
  topTextInput: 'textInput',
  topTimeUpdate: 'timeupdate',
  topToggle: 'toggle',
  topTouchCancel: 'touchcancel',
  topTouchEnd: 'touchend',
  topTouchMove: 'touchmove',
  topTouchStart: 'touchstart',
  topTransitionEnd: getVendorPrefixedEventName('transitionend') || 'transitionend',
  topVolumeChange: 'volumechange',
  topWaiting: 'waiting',
  topWheel: 'wheel'
};

/**
 * To ensure no conflicts with other potential React instances on the page
 */
var topListenersIDKey = '_reactListenersID' + ('' + Math.random()).slice(2);

function getListeningForDocument(mountAt) {
  // In IE8, `mountAt` is a host object and doesn't have `hasOwnProperty`
  // directly.
  if (!Object.prototype.hasOwnProperty.call(mountAt, topListenersIDKey)) {
    mountAt[topListenersIDKey] = reactTopListenersCounter++;
    alreadyListeningTo[mountAt[topListenersIDKey]] = {};
  }
  return alreadyListeningTo[mountAt[topListenersIDKey]];
}

var ReactBrowserEventEmitter$1 = Object.assign({}, ReactEventEmitterMixin, {

  /**
   * Injectable event backend
   */
  ReactEventListener: null,

  injection: {
    /**
     * @param {object} ReactEventListener
     */
    injectReactEventListener: function (ReactEventListener) {
      ReactEventListener.setHandleTopLevel(ReactBrowserEventEmitter$1.handleTopLevel);
      ReactBrowserEventEmitter$1.ReactEventListener = ReactEventListener;
    }
  },

  /**
   * Sets whether or not any created callbacks should be enabled.
   *
   * @param {boolean} enabled True if callbacks should be enabled.
   */
  setEnabled: function (enabled) {
    if (ReactBrowserEventEmitter$1.ReactEventListener) {
      ReactBrowserEventEmitter$1.ReactEventListener.setEnabled(enabled);
    }
  },

  /**
   * @return {boolean} True if callbacks are enabled.
   */
  isEnabled: function () {
    return !!(ReactBrowserEventEmitter$1.ReactEventListener && ReactBrowserEventEmitter$1.ReactEventListener.isEnabled());
  },

  /**
   * We listen for bubbled touch events on the document object.
   *
   * Firefox v8.01 (and possibly others) exhibited strange behavior when
   * mounting `onmousemove` events at some node that was not the document
   * element. The symptoms were that if your mouse is not moving over something
   * contained within that mount point (for example on the background) the
   * top-level listeners for `onmousemove` won't be called. However, if you
   * register the `mousemove` on the document object, then it will of course
   * catch all `mousemove`s. This along with iOS quirks, justifies restricting
   * top-level listeners to the document object only, at least for these
   * movement types of events and possibly all events.
   *
   * @see http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html
   *
   * Also, `keyup`/`keypress`/`keydown` do not bubble to the window on IE, but
   * they bubble to document.
   *
   * @param {string} registrationName Name of listener (e.g. `onClick`).
   * @param {object} contentDocumentHandle Document which owns the container
   */
  listenTo: function (registrationName, contentDocumentHandle) {
    var mountAt = contentDocumentHandle;
    var isListening = getListeningForDocument(mountAt);
    var dependencies = EventPluginRegistry.registrationNameDependencies[registrationName];

    for (var i = 0; i < dependencies.length; i++) {
      var dependency = dependencies[i];
      if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) {
        if (dependency === 'topWheel') {
          if (isEventSupported('wheel')) {
            ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent('topWheel', 'wheel', mountAt);
          } else if (isEventSupported('mousewheel')) {
            ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent('topWheel', 'mousewheel', mountAt);
          } else {
            // Firefox needs to capture a different mouse scroll event.
            // @see http://www.quirksmode.org/dom/events/tests/scroll.html
            ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent('topWheel', 'DOMMouseScroll', mountAt);
          }
        } else if (dependency === 'topScroll') {

          if (isEventSupported('scroll', true)) {
            ReactBrowserEventEmitter$1.ReactEventListener.trapCapturedEvent('topScroll', 'scroll', mountAt);
          } else {
            ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent('topScroll', 'scroll', ReactBrowserEventEmitter$1.ReactEventListener.WINDOW_HANDLE);
          }
        } else if (dependency === 'topFocus' || dependency === 'topBlur') {

          if (isEventSupported('focus', true)) {
            ReactBrowserEventEmitter$1.ReactEventListener.trapCapturedEvent('topFocus', 'focus', mountAt);
            ReactBrowserEventEmitter$1.ReactEventListener.trapCapturedEvent('topBlur', 'blur', mountAt);
          } else if (isEventSupported('focusin')) {
            // IE has `focusin` and `focusout` events which bubble.
            // @see http://www.quirksmode.org/blog/archives/2008/04/delegating_the.html
            ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent('topFocus', 'focusin', mountAt);
            ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent('topBlur', 'focusout', mountAt);
          }

          // to make sure blur and focus event listeners are only attached once
          isListening.topBlur = true;
          isListening.topFocus = true;
        } else if (dependency === 'topCancel') {
          if (isEventSupported('cancel', true)) {
            ReactBrowserEventEmitter$1.ReactEventListener.trapCapturedEvent('topCancel', 'cancel', mountAt);
          }
          isListening.topCancel = true;
        } else if (dependency === 'topClose') {
          if (isEventSupported('close', true)) {
            ReactBrowserEventEmitter$1.ReactEventListener.trapCapturedEvent('topClose', 'close', mountAt);
          }
          isListening.topClose = true;
        } else if (topEventMapping.hasOwnProperty(dependency)) {
          ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent(dependency, topEventMapping[dependency], mountAt);
        }

        isListening[dependency] = true;
      }
    }
  },

  isListeningToAllDependencies: function (registrationName, mountAt) {
    var isListening = getListeningForDocument(mountAt);
    var dependencies = EventPluginRegistry.registrationNameDependencies[registrationName];
    for (var i = 0; i < dependencies.length; i++) {
      var dependency = dependencies[i];
      if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) {
        return false;
      }
    }
    return true;
  },

  trapBubbledEvent: function (topLevelType, handlerBaseName, handle) {
    return ReactBrowserEventEmitter$1.ReactEventListener.trapBubbledEvent(topLevelType, handlerBaseName, handle);
  },

  trapCapturedEvent: function (topLevelType, handlerBaseName, handle) {
    return ReactBrowserEventEmitter$1.ReactEventListener.trapCapturedEvent(topLevelType, handlerBaseName, handle);
  },

  /**
   * Protect against document.createEvent() returning null
   * Some popup blocker extensions appear to do this:
   * https://github.com/facebook/react/issues/6887
   */
  supportsEventPageXY: function () {
    if (!document.createEvent) {
      return false;
    }
    var ev = document.createEvent('MouseEvent');
    return ev != null && 'pageX' in ev;
  },

  /**
   * Listens to window scroll and resize events. We cache scroll values so that
   * application code can access them without triggering reflows.
   *
   * ViewportMetrics is only used by SyntheticMouse/TouchEvent and only when
   * pageX/pageY isn't supported (legacy browsers).
   *
   * NOTE: Scroll events do not bubble.
   *
   * @see http://www.quirksmode.org/dom/events/scroll.html
   */
  ensureScrollValueMonitoring: function () {
    if (hasEventPageXY === undefined) {
      hasEventPageXY = ReactBrowserEventEmitter$1.supportsEventPageXY();
    }
    if (!hasEventPageXY && !isMonitoringScrollValue) {
      var refresh = ViewportMetrics.refreshScrollValues;
      ReactBrowserEventEmitter$1.ReactEventListener.monitorScrollValue(refresh);
      isMonitoringScrollValue = true;
    }
  }

});

var ReactBrowserEventEmitter_1 = ReactBrowserEventEmitter$1;

var EventPluginUtils$2 = EventPluginUtils_1;

var invariant$5 = invariant;

// Use to restore controlled state after a change event has fired.

var fiberHostComponent = null;

var ReactControlledComponentInjection = {
  injectFiberControlledHostComponent: function (hostComponentImpl) {
    // The fiber implementation doesn't use dynamic dispatch so we need to
    // inject the implementation.
    fiberHostComponent = hostComponentImpl;
  }
};

var restoreTarget = null;
var restoreQueue = null;

function restoreStateOfTarget(target) {
  // We perform this translation at the end of the event loop so that we
  // always receive the correct fiber here
  var internalInstance = EventPluginUtils$2.getInstanceFromNode(target);
  if (!internalInstance) {
    // Unmounted
    return;
  }
  if (typeof internalInstance.tag === 'number') {
    invariant$5(fiberHostComponent && typeof fiberHostComponent.restoreControlledState === 'function', 'Fiber needs to be injected to handle a fiber target for controlled ' + 'events.');
    var props = EventPluginUtils$2.getFiberCurrentPropsFromNode(internalInstance.stateNode);
    fiberHostComponent.restoreControlledState(internalInstance.stateNode, internalInstance.type, props);
    return;
  }
  invariant$5(typeof internalInstance.restoreControlledState === 'function', 'The internal instance must be a React host component.');
  // If it is not a Fiber, we can just use dynamic dispatch.
  internalInstance.restoreControlledState();
}

var ReactControlledComponent$1 = {
  injection: ReactControlledComponentInjection,

  enqueueStateRestore: function (target) {
    if (restoreTarget) {
      if (restoreQueue) {
        restoreQueue.push(target);
      } else {
        restoreQueue = [target];
      }
    } else {
      restoreTarget = target;
    }
  },
  restoreStateIfNeeded: function () {
    if (!restoreTarget) {
      return;
    }
    var target = restoreTarget;
    var queuedTargets = restoreQueue;
    restoreTarget = null;
    restoreQueue = null;

    restoreStateOfTarget(target);
    if (queuedTargets) {
      for (var i = 0; i < queuedTargets.length; i++) {
        restoreStateOfTarget(queuedTargets[i]);
      }
    }
  }
};

var ReactControlledComponent_1 = ReactControlledComponent$1;

var invariant$7 = invariant;

function checkMask(value, bitmask) {
  return (value & bitmask) === bitmask;
}

var DOMPropertyInjection = {
  /**
   * Mapping from normalized, camelcased property names to a configuration that
   * specifies how the associated DOM property should be accessed or rendered.
   */
  MUST_USE_PROPERTY: 0x1,
  HAS_BOOLEAN_VALUE: 0x4,
  HAS_NUMERIC_VALUE: 0x8,
  HAS_POSITIVE_NUMERIC_VALUE: 0x10 | 0x8,
  HAS_OVERLOADED_BOOLEAN_VALUE: 0x20,

  /**
   * Inject some specialized knowledge about the DOM. This takes a config object
   * with the following properties:
   *
   * isCustomAttribute: function that given an attribute name will return true
   * if it can be inserted into the DOM verbatim. Useful for data-* or aria-*
   * attributes where it's impossible to enumerate all of the possible
   * attribute names,
   *
   * Properties: object mapping DOM property name to one of the
   * DOMPropertyInjection constants or null. If your attribute isn't in here,
   * it won't get written to the DOM.
   *
   * DOMAttributeNames: object mapping React attribute name to the DOM
   * attribute name. Attribute names not specified use the **lowercase**
   * normalized name.
   *
   * DOMAttributeNamespaces: object mapping React attribute name to the DOM
   * attribute namespace URL. (Attribute names not specified use no namespace.)
   *
   * DOMPropertyNames: similar to DOMAttributeNames but for DOM properties.
   * Property names not specified use the normalized name.
   *
   * DOMMutationMethods: Properties that require special mutation methods. If
   * `value` is undefined, the mutation method should unset the property.
   *
   * @param {object} domPropertyConfig the config as described above.
   */
  injectDOMPropertyConfig: function (domPropertyConfig) {
    var Injection = DOMPropertyInjection;
    var Properties = domPropertyConfig.Properties || {};
    var DOMAttributeNamespaces = domPropertyConfig.DOMAttributeNamespaces || {};
    var DOMAttributeNames = domPropertyConfig.DOMAttributeNames || {};
    var DOMPropertyNames = domPropertyConfig.DOMPropertyNames || {};
    var DOMMutationMethods = domPropertyConfig.DOMMutationMethods || {};

    if (domPropertyConfig.isCustomAttribute) {
      DOMProperty$1._isCustomAttributeFunctions.push(domPropertyConfig.isCustomAttribute);
    }

    for (var propName in Properties) {
      invariant$7(!DOMProperty$1.properties.hasOwnProperty(propName), 'injectDOMPropertyConfig(...): You\'re trying to inject DOM property ' + '\'%s\' which has already been injected. You may be accidentally ' + 'injecting the same DOM property config twice, or you may be ' + 'injecting two configs that have conflicting property names.', propName);

      var lowerCased = propName.toLowerCase();
      var propConfig = Properties[propName];

      var propertyInfo = {
        attributeName: lowerCased,
        attributeNamespace: null,
        propertyName: propName,
        mutationMethod: null,

        mustUseProperty: checkMask(propConfig, Injection.MUST_USE_PROPERTY),
        hasBooleanValue: checkMask(propConfig, Injection.HAS_BOOLEAN_VALUE),
        hasNumericValue: checkMask(propConfig, Injection.HAS_NUMERIC_VALUE),
        hasPositiveNumericValue: checkMask(propConfig, Injection.HAS_POSITIVE_NUMERIC_VALUE),
        hasOverloadedBooleanValue: checkMask(propConfig, Injection.HAS_OVERLOADED_BOOLEAN_VALUE)
      };
      invariant$7(propertyInfo.hasBooleanValue + propertyInfo.hasNumericValue + propertyInfo.hasOverloadedBooleanValue <= 1, 'DOMProperty: Value can be one of boolean, overloaded boolean, or ' + 'numeric value, but not a combination: %s', propName);

      if (__DEV__) {
        DOMProperty$1.getPossibleStandardName[lowerCased] = propName;
      }

      if (DOMAttributeNames.hasOwnProperty(propName)) {
        var attributeName = DOMAttributeNames[propName];
        propertyInfo.attributeName = attributeName;
        if (__DEV__) {
          DOMProperty$1.getPossibleStandardName[attributeName] = propName;
        }
      }

      if (DOMAttributeNamespaces.hasOwnProperty(propName)) {
        propertyInfo.attributeNamespace = DOMAttributeNamespaces[propName];
      }

      if (DOMPropertyNames.hasOwnProperty(propName)) {
        propertyInfo.propertyName = DOMPropertyNames[propName];
      }

      if (DOMMutationMethods.hasOwnProperty(propName)) {
        propertyInfo.mutationMethod = DOMMutationMethods[propName];
      }

      DOMProperty$1.properties[propName] = propertyInfo;
    }
  }
};

/* eslint-disable max-len */
var ATTRIBUTE_NAME_START_CHAR = ':A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD';
/* eslint-enable max-len */

/**
 * DOMProperty exports lookup objects that can be used like functions:
 *
 *   > DOMProperty.isValid['id']
 *   true
 *   > DOMProperty.isValid['foobar']
 *   undefined
 *
 * Although this may be confusing, it performs better in general.
 *
 * @see http://jsperf.com/key-exists
 * @see http://jsperf.com/key-missing
 */
var DOMProperty$1 = {

  ID_ATTRIBUTE_NAME: 'data-reactid',
  ROOT_ATTRIBUTE_NAME: 'data-reactroot',

  ATTRIBUTE_NAME_START_CHAR: ATTRIBUTE_NAME_START_CHAR,
  ATTRIBUTE_NAME_CHAR: ATTRIBUTE_NAME_START_CHAR + '\\-.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040',

  /**
   * Map from property "standard name" to an object with info about how to set
   * the property in the DOM. Each object contains:
   *
   * attributeName:
   *   Used when rendering markup or with `*Attribute()`.
   * attributeNamespace
   * propertyName:
   *   Used on DOM node instances. (This includes properties that mutate due to
   *   external factors.)
   * mutationMethod:
   *   If non-null, used instead of the property or `setAttribute()` after
   *   initial render.
   * mustUseProperty:
   *   Whether the property must be accessed and mutated as an object property.
   * hasBooleanValue:
   *   Whether the property should be removed when set to a falsey value.
   * hasNumericValue:
   *   Whether the property must be numeric or parse as a numeric and should be
   *   removed when set to a falsey value.
   * hasPositiveNumericValue:
   *   Whether the property must be positive numeric or parse as a positive
   *   numeric and should be removed when set to a falsey value.
   * hasOverloadedBooleanValue:
   *   Whether the property can be used as a flag as well as with a value.
   *   Removed when strictly equal to false; present without a value when
   *   strictly equal to true; present with a value otherwise.
   */
  properties: {},

  /**
   * Mapping from lowercase property names to the properly cased version, used
   * to warn in the case of missing properties. Available only in __DEV__.
   *
   * autofocus is predefined, because adding it to the property whitelist
   * causes unintended side effects.
   *
   * @type {Object}
   */
  getPossibleStandardName: __DEV__ ? { autofocus: 'autoFocus' } : null,

  /**
   * All of the isCustomAttribute() functions that have been injected.
   */
  _isCustomAttributeFunctions: [],

  /**
   * Checks whether a property name is a custom attribute.
   * @method
   */
  isCustomAttribute: function (attributeName) {
    for (var i = 0; i < DOMProperty$1._isCustomAttributeFunctions.length; i++) {
      var isCustomAttributeFn = DOMProperty$1._isCustomAttributeFunctions[i];
      if (isCustomAttributeFn(attributeName)) {
        return true;
      }
    }
    return false;
  },

  injection: DOMPropertyInjection
};

var DOMProperty_1 = DOMProperty$1;

/**
 * Copyright 2015-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactDOMComponentFlags
 */

var ReactDOMComponentFlags$1 = {
  hasCachedChildNodes: 1 << 0
};

var ReactDOMComponentFlags_1 = ReactDOMComponentFlags$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactTypeOfWork
 *
 */

var ReactTypeOfWork = {
  IndeterminateComponent: 0, // Before we know whether it is functional or class
  FunctionalComponent: 1,
  ClassComponent: 2,
  HostRoot: 3, // Root of a host tree. Could be nested inside another node.
  HostPortal: 4, // A subtree. Could be an entry point to a different renderer.
  HostComponent: 5,
  HostText: 6,
  CoroutineComponent: 7,
  CoroutineHandlerPhase: 8,
  YieldComponent: 9,
  Fragment: 10
};

var DOMProperty = DOMProperty_1;
var ReactDOMComponentFlags = ReactDOMComponentFlags_1;

var _require$1 = ReactTypeOfWork;
var HostComponent = _require$1.HostComponent;
var HostText = _require$1.HostText;

var invariant$6 = invariant;

var ATTR_NAME = DOMProperty.ID_ATTRIBUTE_NAME;
var Flags = ReactDOMComponentFlags;

var randomKey = Math.random().toString(36).slice(2);

var internalInstanceKey = '__reactInternalInstance$' + randomKey;

var internalEventHandlersKey = '__reactEventHandlers$' + randomKey;

/**
 * Check if a given node should be cached.
 */
function shouldPrecacheNode(node, nodeID) {
  return node.nodeType === 1 && node.getAttribute(ATTR_NAME) === '' + nodeID || node.nodeType === 8 && node.nodeValue === ' react-text: ' + nodeID + ' ' || node.nodeType === 8 && node.nodeValue === ' react-empty: ' + nodeID + ' ';
}

/**
 * Drill down (through composites and empty components) until we get a host or
 * host text component.
 *
 * This is pretty polymorphic but unavoidable with the current structure we have
 * for `_renderedChildren`.
 */
function getRenderedHostOrTextFromComponent(component) {
  var rendered;
  while (rendered = component._renderedComponent) {
    component = rendered;
  }
  return component;
}

/**
 * Populate `_hostNode` on the rendered host/text component with the given
 * DOM node. The passed `inst` can be a composite.
 */
function precacheNode(inst, node) {
  var hostInst = getRenderedHostOrTextFromComponent(inst);
  hostInst._hostNode = node;
  node[internalInstanceKey] = hostInst;
}

function precacheFiberNode$1(hostInst, node) {
  node[internalInstanceKey] = hostInst;
}

function uncacheNode(inst) {
  var node = inst._hostNode;
  if (node) {
    delete node[internalInstanceKey];
    inst._hostNode = null;
  }
}

/**
 * Populate `_hostNode` on each child of `inst`, assuming that the children
 * match up with the DOM (element) children of `node`.
 *
 * We cache entire levels at once to avoid an n^2 problem where we access the
 * children of a node sequentially and have to walk from the start to our target
 * node every time.
 *
 * Since we update `_renderedChildren` and the actual DOM at (slightly)
 * different times, we could race here and see a newer `_renderedChildren` than
 * the DOM nodes we see. To avoid this, ReactMultiChild calls
 * `prepareToManageChildren` before we change `_renderedChildren`, at which
 * time the container's child nodes are always cached (until it unmounts).
 */
function precacheChildNodes(inst, node) {
  if (inst._flags & Flags.hasCachedChildNodes) {
    return;
  }
  var children = inst._renderedChildren;
  var childNode = node.firstChild;
  outer: for (var name in children) {
    if (!children.hasOwnProperty(name)) {
      continue;
    }
    var childInst = children[name];
    var childID = getRenderedHostOrTextFromComponent(childInst)._domID;
    if (childID === 0) {
      // We're currently unmounting this child in ReactMultiChild; skip it.
      continue;
    }
    // We assume the child nodes are in the same order as the child instances.
    for (; childNode !== null; childNode = childNode.nextSibling) {
      if (shouldPrecacheNode(childNode, childID)) {
        precacheNode(childInst, childNode);
        continue outer;
      }
    }
    // We reached the end of the DOM children without finding an ID match.
    invariant$6(false, 'Unable to find element with ID %s.', childID);
  }
  inst._flags |= Flags.hasCachedChildNodes;
}

/**
 * Given a DOM node, return the closest ReactDOMComponent or
 * ReactDOMTextComponent instance ancestor.
 */
function getClosestInstanceFromNode(node) {
  if (node[internalInstanceKey]) {
    return node[internalInstanceKey];
  }

  // Walk up the tree until we find an ancestor whose instance we have cached.
  var parents = [];
  while (!node[internalInstanceKey]) {
    parents.push(node);
    if (node.parentNode) {
      node = node.parentNode;
    } else {
      // Top of the tree. This node must not be part of a React tree (or is
      // unmounted, potentially).
      return null;
    }
  }

  var closest;
  var inst = node[internalInstanceKey];
  if (inst.tag === HostComponent || inst.tag === HostText) {
    // In Fiber, this will always be the deepest root.
    return inst;
  }
  for (; node && (inst = node[internalInstanceKey]); node = parents.pop()) {
    closest = inst;
    if (parents.length) {
      precacheChildNodes(inst, node);
    }
  }

  return closest;
}

/**
 * Given a DOM node, return the ReactDOMComponent or ReactDOMTextComponent
 * instance, or null if the node was not rendered by this React.
 */
function getInstanceFromNode(node) {
  var inst = node[internalInstanceKey];
  if (inst) {
    if (inst.tag === HostComponent || inst.tag === HostText) {
      return inst;
    } else if (inst._hostNode === node) {
      return inst;
    } else {
      return null;
    }
  }
  inst = getClosestInstanceFromNode(node);
  if (inst != null && inst._hostNode === node) {
    return inst;
  } else {
    return null;
  }
}

/**
 * Given a ReactDOMComponent or ReactDOMTextComponent, return the corresponding
 * DOM node.
 */
function getNodeFromInstance(inst) {
  if (inst.tag === HostComponent || inst.tag === HostText) {
    // In Fiber this, is just the state node right now. We assume it will be
    // a host component or host text.
    return inst.stateNode;
  }

  // Without this first invariant, passing a non-DOM-component triggers the next
  // invariant for a missing parent, which is super confusing.
  invariant$6(inst._hostNode !== undefined, 'getNodeFromInstance: Invalid argument.');

  if (inst._hostNode) {
    return inst._hostNode;
  }

  // Walk up the tree until we find an ancestor whose DOM node we have cached.
  var parents = [];
  while (!inst._hostNode) {
    parents.push(inst);
    invariant$6(inst._hostParent, 'React DOM tree root should always have a node reference.');
    inst = inst._hostParent;
  }

  // Now parents contains each ancestor that does *not* have a cached native
  // node, and `inst` is the deepest ancestor that does.
  for (; parents.length; inst = parents.pop()) {
    precacheChildNodes(inst, inst._hostNode);
  }

  return inst._hostNode;
}

function getFiberCurrentPropsFromNode(node) {
  return node[internalEventHandlersKey] || null;
}

function updateFiberProps$1(node, props) {
  node[internalEventHandlersKey] = props;
}

var ReactDOMComponentTree$1 = {
  getClosestInstanceFromNode: getClosestInstanceFromNode,
  getInstanceFromNode: getInstanceFromNode,
  getNodeFromInstance: getNodeFromInstance,
  precacheChildNodes: precacheChildNodes,
  precacheNode: precacheNode,
  uncacheNode: uncacheNode,
  precacheFiberNode: precacheFiberNode$1,
  getFiberCurrentPropsFromNode: getFiberCurrentPropsFromNode,
  updateFiberProps: updateFiberProps$1
};

var ReactDOMComponentTree_1 = ReactDOMComponentTree$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactFeatureFlags
 *
 */

var ReactFeatureFlags$1 = {
  // When true, call console.time() before and .timeEnd() after each top-level
  // render (both initial renders and updates). Useful when looking at prod-mode
  // timeline profiles in Chrome, for example.
  logTopLevelRenders: false,
  prepareNewChildrenBeforeUnmountInStack: true,
  disableNewFiberFeatures: false
};

var ReactFeatureFlags_1 = ReactFeatureFlags$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactDOMFeatureFlags
 */

var ReactDOMFeatureFlags$1 = {
  useCreateElement: true,
  useFiber: false
};

var ReactDOMFeatureFlags_1 = ReactDOMFeatureFlags$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule CSSProperty
 */

/**
 * CSS properties which accept numbers but are not in units of "px".
 */

var isUnitlessNumber = {
  animationIterationCount: true,
  borderImageOutset: true,
  borderImageSlice: true,
  borderImageWidth: true,
  boxFlex: true,
  boxFlexGroup: true,
  boxOrdinalGroup: true,
  columnCount: true,
  flex: true,
  flexGrow: true,
  flexPositive: true,
  flexShrink: true,
  flexNegative: true,
  flexOrder: true,
  gridRow: true,
  gridColumn: true,
  fontWeight: true,
  lineClamp: true,
  lineHeight: true,
  opacity: true,
  order: true,
  orphans: true,
  tabSize: true,
  widows: true,
  zIndex: true,
  zoom: true,

  // SVG-related properties
  fillOpacity: true,
  floodOpacity: true,
  stopOpacity: true,
  strokeDasharray: true,
  strokeDashoffset: true,
  strokeMiterlimit: true,
  strokeOpacity: true,
  strokeWidth: true
};

/**
 * @param {string} prefix vendor-specific prefix, eg: Webkit
 * @param {string} key style name, eg: transitionDuration
 * @return {string} style name prefixed with `prefix`, properly camelCased, eg:
 * WebkitTransitionDuration
 */
function prefixKey(prefix, key) {
  return prefix + key.charAt(0).toUpperCase() + key.substring(1);
}

/**
 * Support style names that may come passed in prefixed by adding permutations
 * of vendor prefixes.
 */
var prefixes = ['Webkit', 'ms', 'Moz', 'O'];

// Using Object.keys here, or else the vanilla for-in loop makes IE8 go into an
// infinite loop, because it iterates over the newly added props too.
Object.keys(isUnitlessNumber).forEach(function (prop) {
  prefixes.forEach(function (prefix) {
    isUnitlessNumber[prefixKey(prefix, prop)] = isUnitlessNumber[prop];
  });
});

/**
 * Most style properties can be unset by doing .style[prop] = '' but IE8
 * doesn't like doing that with shorthand properties so for the properties that
 * IE8 breaks on, which are listed here, we instead unset each of the
 * individual properties. See http://bugs.jquery.com/ticket/12385.
 * The 4-value 'clock' properties like margin, padding, border-width seem to
 * behave without any problems. Curiously, list-style works too without any
 * special prodding.
 */
var shorthandPropertyExpansions = {
  background: {
    backgroundAttachment: true,
    backgroundColor: true,
    backgroundImage: true,
    backgroundPositionX: true,
    backgroundPositionY: true,
    backgroundRepeat: true
  },
  backgroundPosition: {
    backgroundPositionX: true,
    backgroundPositionY: true
  },
  border: {
    borderWidth: true,
    borderStyle: true,
    borderColor: true
  },
  borderBottom: {
    borderBottomWidth: true,
    borderBottomStyle: true,
    borderBottomColor: true
  },
  borderLeft: {
    borderLeftWidth: true,
    borderLeftStyle: true,
    borderLeftColor: true
  },
  borderRight: {
    borderRightWidth: true,
    borderRightStyle: true,
    borderRightColor: true
  },
  borderTop: {
    borderTopWidth: true,
    borderTopStyle: true,
    borderTopColor: true
  },
  font: {
    fontStyle: true,
    fontVariant: true,
    fontWeight: true,
    fontSize: true,
    lineHeight: true,
    fontFamily: true
  },
  outline: {
    outlineWidth: true,
    outlineStyle: true,
    outlineColor: true
  }
};

var CSSProperty$1 = {
  isUnitlessNumber: isUnitlessNumber,
  shorthandPropertyExpansions: shorthandPropertyExpansions
};

var CSSProperty_1 = CSSProperty$1;

var CSSProperty$2 = CSSProperty_1;

var isUnitlessNumber$1 = CSSProperty$2.isUnitlessNumber;

/**
 * Convert a value into the proper css writable value. The style name `name`
 * should be logical (no hyphens), as specified
 * in `CSSProperty.isUnitlessNumber`.
 *
 * @param {string} name CSS property name such as `topMargin`.
 * @param {*} value CSS property value such as `10px`.
 * @param {ReactDOMComponent} component
 * @return {string} Normalized style value with dimensions applied.
 */
function dangerousStyleValue$1(name, value, component) {
  // Note that we've removed escapeTextForBrowser() calls here since the
  // whole string will be escaped when the attribute is injected into
  // the markup. If you provide unsafe user data here they can inject
  // arbitrary CSS which may be problematic (I couldn't repro this):
  // https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
  // http://www.thespanner.co.uk/2007/11/26/ultimate-xss-css-injection/
  // This is not an XSS hole but instead a potential CSS injection issue
  // which has lead to a greater discussion about how we're going to
  // trust URLs moving forward. See #2115901

  var isEmpty = value == null || typeof value === 'boolean' || value === '';
  if (isEmpty) {
    return '';
  }

  if (typeof value === 'number' && value !== 0 && !(isUnitlessNumber$1.hasOwnProperty(name) && isUnitlessNumber$1[name])) {
    return value + 'px'; // Presumes implicit 'px' suffix for unitless numbers
  }

  return ('' + value).trim();
}

var dangerousStyleValue_1 = dangerousStyleValue$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 *
 * @providesModule getComponentName
 */

function getComponentName$1(instanceOrFiber) {
  if (typeof instanceOrFiber.getName === 'function') {
    // Stack reconciler
    var instance = instanceOrFiber;
    return instance.getName();
  }
  if (typeof instanceOrFiber.tag === 'number') {
    // Fiber reconciler
    var fiber = instanceOrFiber;
    var type = fiber.type;

    if (typeof type === 'string') {
      return type;
    }
    if (typeof type === 'function') {
      return type.displayName || type.name;
    }
  }
  return null;
}

var getComponentName_1 = getComponentName$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactCurrentOwner
 *
 */

/**
 * Keeps track of the current owner.
 *
 * The current owner is the component who should own any components that are
 * currently being constructed.
 */
var ReactCurrentOwner$1 = {

  /**
   * @internal
   * @type {ReactComponent}
   */
  current: null

};

var ReactCurrentOwner_1 = ReactCurrentOwner$1;

var ReactCurrentOwner = ReactCurrentOwner_1;
var ReactTypeOfWork$2 = ReactTypeOfWork;
var IndeterminateComponent = ReactTypeOfWork$2.IndeterminateComponent;
var FunctionalComponent = ReactTypeOfWork$2.FunctionalComponent;
var ClassComponent = ReactTypeOfWork$2.ClassComponent;
var HostComponent$1 = ReactTypeOfWork$2.HostComponent;


var getComponentName$3 = getComponentName_1;
var invariant$9 = invariant;
var warning$4 = warning;

function isNative(fn) {
  // Based on isNative() from Lodash
  var funcToString = Function.prototype.toString;
  var hasOwnProperty = Object.prototype.hasOwnProperty;
  var reIsNative = RegExp('^' + funcToString
  // Take an example native function source for comparison
  .call(hasOwnProperty)
  // Strip regex characters so we can use it for regex
  .replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
  // Remove hasOwnProperty from the template to make it generic
  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$');
  try {
    var source = funcToString.call(fn);
    return reIsNative.test(source);
  } catch (err) {
    return false;
  }
}

var canUseCollections =
// Array.from
typeof Array.from === 'function' &&
// Map
typeof Map === 'function' && isNative(Map) &&
// Map.prototype.keys
Map.prototype != null && typeof Map.prototype.keys === 'function' && isNative(Map.prototype.keys) &&
// Set
typeof Set === 'function' && isNative(Set) &&
// Set.prototype.keys
Set.prototype != null && typeof Set.prototype.keys === 'function' && isNative(Set.prototype.keys);

var setItem;
var getItem;
var removeItem;
var getItemIDs;
var addRoot;
var removeRoot;
var getRootIDs;

if (canUseCollections) {
  var itemMap = new Map();
  var rootIDSet = new Set();

  setItem = function (id, item) {
    itemMap.set(id, item);
  };
  getItem = function (id) {
    return itemMap.get(id);
  };
  removeItem = function (id) {
    itemMap['delete'](id);
  };
  getItemIDs = function () {
    return Array.from(itemMap.keys());
  };

  addRoot = function (id) {
    rootIDSet.add(id);
  };
  removeRoot = function (id) {
    rootIDSet['delete'](id);
  };
  getRootIDs = function () {
    return Array.from(rootIDSet.keys());
  };
} else {
  var itemByKey = {};
  var rootByKey = {};

  // Use non-numeric keys to prevent V8 performance issues:
  // https://github.com/facebook/react/pull/7232
  var getKeyFromID = function (id) {
    return '.' + id;
  };
  var getIDFromKey = function (key) {
    return parseInt(key.substr(1), 10);
  };

  setItem = function (id, item) {
    var key = getKeyFromID(id);
    itemByKey[key] = item;
  };
  getItem = function (id) {
    var key = getKeyFromID(id);
    return itemByKey[key];
  };
  removeItem = function (id) {
    var key = getKeyFromID(id);
    delete itemByKey[key];
  };
  getItemIDs = function () {
    return Object.keys(itemByKey).map(getIDFromKey);
  };

  addRoot = function (id) {
    var key = getKeyFromID(id);
    rootByKey[key] = true;
  };
  removeRoot = function (id) {
    var key = getKeyFromID(id);
    delete rootByKey[key];
  };
  getRootIDs = function () {
    return Object.keys(rootByKey).map(getIDFromKey);
  };
}

var unmountedIDs = [];

function purgeDeep(id) {
  var item = getItem(id);
  if (item) {
    var childIDs = item.childIDs;

    removeItem(id);
    childIDs.forEach(purgeDeep);
  }
}

function describeComponentFrame(name, source, ownerName) {
  return '\n    in ' + (name || 'Unknown') + (source ? ' (at ' + source.fileName.replace(/^.*[\\\/]/, '') + ':' + source.lineNumber + ')' : ownerName ? ' (created by ' + ownerName + ')' : '');
}

function getDisplayName(element) {
  if (element == null) {
    return '#empty';
  } else if (typeof element === 'string' || typeof element === 'number') {
    return '#text';
  } else if (typeof element.type === 'string') {
    return element.type;
  } else {
    return element.type.displayName || element.type.name || 'Unknown';
  }
}

function describeID(id) {
  var name = ReactComponentTreeHook.getDisplayName(id);
  var element = ReactComponentTreeHook.getElement(id);
  var ownerID = ReactComponentTreeHook.getOwnerID(id);
  var ownerName;
  if (ownerID) {
    ownerName = ReactComponentTreeHook.getDisplayName(ownerID);
  }
  warning$4(element, 'ReactComponentTreeHook: Missing React element for debugID %s when ' + 'building stack', id);
  return describeComponentFrame(name, element && element._source, ownerName);
}

function describeFiber(fiber) {
  switch (fiber.tag) {
    case IndeterminateComponent:
    case FunctionalComponent:
    case ClassComponent:
    case HostComponent$1:
      var owner = fiber._debugOwner;
      var source = fiber._debugSource;
      var name = getComponentName$3(fiber);
      var ownerName = null;
      if (owner) {
        ownerName = getComponentName$3(owner);
      }
      return describeComponentFrame(name, source, ownerName);
    default:
      return '';
  }
}

var ReactComponentTreeHook = {
  onSetChildren: function (id, nextChildIDs) {
    var item = getItem(id);
    invariant$9(item, 'Item must have been set');
    item.childIDs = nextChildIDs;

    for (var i = 0; i < nextChildIDs.length; i++) {
      var nextChildID = nextChildIDs[i];
      var nextChild = getItem(nextChildID);
      invariant$9(nextChild, 'Expected hook events to fire for the child ' + 'before its parent includes it in onSetChildren().');
      invariant$9(nextChild.childIDs != null || typeof nextChild.element !== 'object' || nextChild.element == null, 'Expected onSetChildren() to fire for a container child ' + 'before its parent includes it in onSetChildren().');
      invariant$9(nextChild.isMounted, 'Expected onMountComponent() to fire for the child ' + 'before its parent includes it in onSetChildren().');
      if (nextChild.parentID == null) {
        nextChild.parentID = id;
        // TODO: This shouldn't be necessary but mounting a new root during in
        // componentWillMount currently causes not-yet-mounted components to
        // be purged from our tree data so their parent id is missing.
      }
      invariant$9(nextChild.parentID === id, 'Expected onBeforeMountComponent() parent and onSetChildren() to ' + 'be consistent (%s has parents %s and %s).', nextChildID, nextChild.parentID, id);
    }
  },
  onBeforeMountComponent: function (id, element, parentID) {
    var item = {
      element: element,
      parentID: parentID,
      text: null,
      childIDs: [],
      isMounted: false,
      updateCount: 0
    };
    setItem(id, item);
  },
  onBeforeUpdateComponent: function (id, element) {
    var item = getItem(id);
    if (!item || !item.isMounted) {
      // We may end up here as a result of setState() in componentWillUnmount().
      // In this case, ignore the element.
      return;
    }
    item.element = element;
  },
  onMountComponent: function (id) {
    var item = getItem(id);
    invariant$9(item, 'Item must have been set');
    item.isMounted = true;
    var isRoot = item.parentID === 0;
    if (isRoot) {
      addRoot(id);
    }
  },
  onUpdateComponent: function (id) {
    var item = getItem(id);
    if (!item || !item.isMounted) {
      // We may end up here as a result of setState() in componentWillUnmount().
      // In this case, ignore the element.
      return;
    }
    item.updateCount++;
  },
  onUnmountComponent: function (id) {
    var item = getItem(id);
    if (item) {
      // We need to check if it exists.
      // `item` might not exist if it is inside an error boundary, and a sibling
      // error boundary child threw while mounting. Then this instance never
      // got a chance to mount, but it still gets an unmounting event during
      // the error boundary cleanup.
      item.isMounted = false;
      var isRoot = item.parentID === 0;
      if (isRoot) {
        removeRoot(id);
      }
    }
    unmountedIDs.push(id);
  },
  purgeUnmountedComponents: function () {
    if (ReactComponentTreeHook._preventPurging) {
      // Should only be used for testing.
      return;
    }

    for (var i = 0; i < unmountedIDs.length; i++) {
      var id = unmountedIDs[i];
      purgeDeep(id);
    }
    unmountedIDs.length = 0;
  },
  isMounted: function (id) {
    var item = getItem(id);
    return item ? item.isMounted : false;
  },
  getCurrentStackAddendum: function (topElement) {
    var info = '';
    if (topElement) {
      var name = getDisplayName(topElement);
      var owner = topElement._owner;
      info += describeComponentFrame(name, topElement._source, owner && getComponentName$3(owner));
    }

    var currentOwner = ReactCurrentOwner.current;
    if (currentOwner) {
      if (typeof currentOwner.tag === 'number') {
        var workInProgress = currentOwner;
        // Safe because if current owner exists, we are reconciling,
        // and it is guaranteed to be the work-in-progress version.
        info += ReactComponentTreeHook.getStackAddendumByWorkInProgressFiber(workInProgress);
      } else if (typeof currentOwner._debugID === 'number') {
        info += ReactComponentTreeHook.getStackAddendumByID(currentOwner._debugID);
      }
    }
    return info;
  },
  getStackAddendumByID: function (id) {
    var info = '';
    while (id) {
      info += describeID(id);
      id = ReactComponentTreeHook.getParentID(id);
    }
    return info;
  },


  // This function can only be called with a work-in-progress fiber and
  // only during begin or complete phase. Do not call it under any other
  // circumstances.
  getStackAddendumByWorkInProgressFiber: function (workInProgress) {
    var info = '';
    var node = workInProgress;
    do {
      info += describeFiber(node);
      // Otherwise this return pointer might point to the wrong tree:
      node = node['return'];
    } while (node);
    return info;
  },
  getChildIDs: function (id) {
    var item = getItem(id);
    return item ? item.childIDs : [];
  },
  getDisplayName: function (id) {
    var element = ReactComponentTreeHook.getElement(id);
    if (!element) {
      return null;
    }
    return getDisplayName(element);
  },
  getElement: function (id) {
    var item = getItem(id);
    return item ? item.element : null;
  },
  getOwnerID: function (id) {
    var element = ReactComponentTreeHook.getElement(id);
    if (!element || !element._owner) {
      return null;
    }
    return element._owner._debugID;
  },
  getParentID: function (id) {
    var item = getItem(id);
    return item ? item.parentID : null;
  },
  getSource: function (id) {
    var item = getItem(id);
    var element = item ? item.element : null;
    var source = element != null ? element._source : null;
    return source;
  },
  getText: function (id) {
    var element = ReactComponentTreeHook.getElement(id);
    if (typeof element === 'string') {
      return element;
    } else if (typeof element === 'number') {
      return '' + element;
    } else {
      return null;
    }
  },
  getUpdateCount: function (id) {
    var item = getItem(id);
    return item ? item.updateCount : 0;
  },


  getRootIDs: getRootIDs,
  getRegisteredIDs: getItemIDs
};

var ReactComponentTreeHook_1 = ReactComponentTreeHook;

if (__DEV__) {
  var getComponentName$2 = getComponentName_1;

  var _require$4 = ReactComponentTreeHook_1,
      getStackAddendumByWorkInProgressFiber = _require$4.getStackAddendumByWorkInProgressFiber;
}

function getCurrentFiberOwnerName$2() {
  if (__DEV__) {
    var fiber = ReactDebugCurrentFiber.current;
    if (fiber === null) {
      return null;
    }
    if (fiber._debugOwner != null) {
      return getComponentName$2(fiber._debugOwner);
    }
  }
  return null;
}

function getCurrentFiberStackAddendum() {
  if (__DEV__) {
    var fiber = ReactDebugCurrentFiber.current;
    if (fiber === null) {
      return null;
    }
    // Safe because if current fiber exists, we are reconciling,
    // and it is guaranteed to be the work-in-progress version.
    return getStackAddendumByWorkInProgressFiber(fiber);
  }
  return null;
}

var ReactDebugCurrentFiber = {
  current: null,
  phase: null,

  getCurrentFiberOwnerName: getCurrentFiberOwnerName$2,
  getCurrentFiberStackAddendum: getCurrentFiberStackAddendum
};

var ReactDebugCurrentFiber_1 = ReactDebugCurrentFiber;

var CSSProperty = CSSProperty_1;
var ExecutionEnvironment$2 = ExecutionEnvironment;

var camelizeStyleName$1 = camelizeStyleName;
var dangerousStyleValue = dangerousStyleValue_1;
var getComponentName = getComponentName_1;
var hyphenateStyleName$1 = hyphenateStyleName;
var memoizeStringOnly$1 = memoizeStringOnly;
var warning$3 = warning;

if (__DEV__) {
  var _require$3 = ReactDebugCurrentFiber_1,
      getCurrentFiberOwnerName$1 = _require$3.getCurrentFiberOwnerName;
}

var processStyleName = memoizeStringOnly$1(function (styleName) {
  return hyphenateStyleName$1(styleName);
});

var hasShorthandPropertyBug = false;
var styleFloatAccessor = 'cssFloat';
if (ExecutionEnvironment$2.canUseDOM) {
  var tempStyle = document.createElement('div').style;
  try {
    // IE8 throws "Invalid argument." if resetting shorthand style properties.
    tempStyle.font = '';
  } catch (e) {
    hasShorthandPropertyBug = true;
  }
  // IE8 only supports accessing cssFloat (standard) as styleFloat
  if (document.documentElement.style.cssFloat === undefined) {
    styleFloatAccessor = 'styleFloat';
  }
}

if (__DEV__) {
  // 'msTransform' is correct, but the other prefixes should be capitalized
  var badVendoredStyleNamePattern = /^(?:webkit|moz|o)[A-Z]/;

  // style values shouldn't contain a semicolon
  var badStyleValueWithSemicolonPattern = /;\s*$/;

  var warnedStyleNames = {};
  var warnedStyleValues = {};
  var warnedForNaNValue = false;

  var warnHyphenatedStyleName = function (name, owner) {
    if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
      return;
    }

    warnedStyleNames[name] = true;
    warning$3(false, 'Unsupported style property %s. Did you mean %s?%s', name, camelizeStyleName$1(name), checkRenderMessage(owner));
  };

  var warnBadVendoredStyleName = function (name, owner) {
    if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
      return;
    }

    warnedStyleNames[name] = true;
    warning$3(false, 'Unsupported vendor-prefixed style property %s. Did you mean %s?%s', name, name.charAt(0).toUpperCase() + name.slice(1), checkRenderMessage(owner));
  };

  var warnStyleValueWithSemicolon = function (name, value, owner) {
    if (warnedStyleValues.hasOwnProperty(value) && warnedStyleValues[value]) {
      return;
    }

    warnedStyleValues[value] = true;
    warning$3(false, 'Style property values shouldn\'t contain a semicolon.%s ' + 'Try "%s: %s" instead.', checkRenderMessage(owner), name, value.replace(badStyleValueWithSemicolonPattern, ''));
  };

  var warnStyleValueIsNaN = function (name, value, owner) {
    if (warnedForNaNValue) {
      return;
    }

    warnedForNaNValue = true;
    warning$3(false, '`NaN` is an invalid value for the `%s` css style property.%s', name, checkRenderMessage(owner));
  };

  var checkRenderMessage = function (owner) {
    var ownerName;
    if (owner != null) {
      // Stack passes the owner manually all the way to CSSPropertyOperations.
      ownerName = getComponentName(owner);
    } else {
      // Fiber doesn't pass it but uses ReactDebugCurrentFiber to track it.
      // It is only enabled in development and tracks host components too.
      ownerName = getCurrentFiberOwnerName$1();
      // TODO: also report the stack.
    }
    if (ownerName) {
      return '\n\nCheck the render method of `' + ownerName + '`.';
    }
    return '';
  };

  /**
   * @param {string} name
   * @param {*} value
   * @param {ReactDOMComponent} component
   */
  var warnValidStyle = function (name, value, component) {
    var owner;
    if (component) {
      owner = component._currentElement._owner;
    }
    if (name.indexOf('-') > -1) {
      warnHyphenatedStyleName(name, owner);
    } else if (badVendoredStyleNamePattern.test(name)) {
      warnBadVendoredStyleName(name, owner);
    } else if (badStyleValueWithSemicolonPattern.test(value)) {
      warnStyleValueWithSemicolon(name, value, owner);
    }

    if (typeof value === 'number' && isNaN(value)) {
      warnStyleValueIsNaN(name, value, owner);
    }
  };
}

/**
 * Operations for dealing with CSS properties.
 */
var CSSPropertyOperations$1 = {

  /**
   * Serializes a mapping of style properties for use as inline styles:
   *
   *   > createMarkupForStyles({width: '200px', height: 0})
   *   "width:200px;height:0;"
   *
   * Undefined values are ignored so that declarative programming is easier.
   * The result should be HTML-escaped before insertion into the DOM.
   *
   * @param {object} styles
   * @param {ReactDOMComponent} component
   * @return {?string}
   */
  createMarkupForStyles: function (styles, component) {
    var serialized = '';
    for (var styleName in styles) {
      if (!styles.hasOwnProperty(styleName)) {
        continue;
      }
      var styleValue = styles[styleName];
      if (__DEV__) {
        warnValidStyle(styleName, styleValue, component);
      }
      if (styleValue != null) {
        serialized += processStyleName(styleName) + ':';
        serialized += dangerousStyleValue(styleName, styleValue, component) + ';';
      }
    }
    return serialized || null;
  },

  /**
   * Sets the value for multiple styles on a node.  If a value is specified as
   * '' (empty string), the corresponding style property will be unset.
   *
   * @param {DOMElement} node
   * @param {object} styles
   * @param {ReactDOMComponent} component
   */
  setValueForStyles: function (node, styles, component) {
    var style = node.style;
    for (var styleName in styles) {
      if (!styles.hasOwnProperty(styleName)) {
        continue;
      }
      if (__DEV__) {
        warnValidStyle(styleName, styles[styleName], component);
      }
      var styleValue = dangerousStyleValue(styleName, styles[styleName], component);
      if (styleName === 'float' || styleName === 'cssFloat') {
        styleName = styleFloatAccessor;
      }
      if (styleValue) {
        style[styleName] = styleValue;
      } else {
        var expansion = hasShorthandPropertyBug && CSSProperty.shorthandPropertyExpansions[styleName];
        if (expansion) {
          // Shorthand property that IE8 won't like unsetting, so unset each
          // component to placate it
          for (var individualStyleName in expansion) {
            style[individualStyleName] = '';
          }
        } else {
          style[styleName] = '';
        }
      }
    }
  }

};

var CSSPropertyOperations_1 = CSSPropertyOperations$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule DOMNamespaces
 */

var DOMNamespaces$1 = {
  html: 'http://www.w3.org/1999/xhtml',
  mathml: 'http://www.w3.org/1998/Math/MathML',
  svg: 'http://www.w3.org/2000/svg'
};

var DOMNamespaces_1 = DOMNamespaces$1;

var warning$7 = warning;

var ReactInvalidSetStateWarningHook$1 = {};

if (__DEV__) {
  var processingChildContext = false;

  var warnInvalidSetState = function () {
    warning$7(!processingChildContext, 'setState(...): Cannot call setState() inside getChildContext()');
  };

  ReactInvalidSetStateWarningHook$1 = {
    onBeginProcessingChildContext: function () {
      processingChildContext = true;
    },
    onEndProcessingChildContext: function () {
      processingChildContext = false;
    },
    onSetState: function () {
      warnInvalidSetState();
    }
  };
}

var ReactInvalidSetStateWarningHook_1 = ReactInvalidSetStateWarningHook$1;

/**
 * Copyright 2016-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactHostOperationHistoryHook
 *
 */

// Trust the developer to only use this with a __DEV__ check
var ReactHostOperationHistoryHook$1 = null;

if (__DEV__) {
  var history = [];

  ReactHostOperationHistoryHook$1 = {
    onHostOperation: function (operation) {
      history.push(operation);
    },
    clearHistory: function () {
      if (ReactHostOperationHistoryHook$1._preventClearing) {
        // Should only be used for tests.
        return;
      }

      history = [];
    },
    getHistory: function () {
      return history;
    }
  };
}

var ReactHostOperationHistoryHook_1 = ReactHostOperationHistoryHook$1;

var ReactInvalidSetStateWarningHook = ReactInvalidSetStateWarningHook_1;
var ReactHostOperationHistoryHook = ReactHostOperationHistoryHook_1;
var ReactComponentTreeHook$1 = ReactComponentTreeHook_1;
var ExecutionEnvironment$3 = ExecutionEnvironment;

var performanceNow$1 = performanceNow;
var warning$6 = warning;

// Trust the developer to only use this with a __DEV__ check
var ReactDebugTool$1 = null;

if (__DEV__) {
  var hooks = [];
  var didHookThrowForEvent = {};

  var callHook = function (event, fn, context, arg1, arg2, arg3, arg4, arg5) {
    try {
      fn.call(context, arg1, arg2, arg3, arg4, arg5);
    } catch (e) {
      warning$6(didHookThrowForEvent[event], 'Exception thrown by hook while handling %s: %s', event, e + '\n' + e.stack);
      didHookThrowForEvent[event] = true;
    }
  };

  var emitEvent = function (event, arg1, arg2, arg3, arg4, arg5) {
    for (var i = 0; i < hooks.length; i++) {
      var hook = hooks[i];
      var fn = hook[event];
      if (fn) {
        callHook(event, fn, hook, arg1, arg2, arg3, arg4, arg5);
      }
    }
  };

  var isProfiling = false;
  var flushHistory = [];
  var lifeCycleTimerStack = [];
  var currentFlushNesting = 0;
  var currentFlushMeasurements = [];
  var currentFlushStartTime = 0;
  var currentTimerDebugID = null;
  var currentTimerStartTime = 0;
  var currentTimerNestedFlushDuration = 0;
  var currentTimerType = null;

  var lifeCycleTimerHasWarned = false;

  var clearHistory = function () {
    ReactComponentTreeHook$1.purgeUnmountedComponents();
    ReactHostOperationHistoryHook.clearHistory();
  };

  var getTreeSnapshot = function (registeredIDs) {
    return registeredIDs.reduce(function (tree, id) {
      var ownerID = ReactComponentTreeHook$1.getOwnerID(id);
      var parentID = ReactComponentTreeHook$1.getParentID(id);
      tree[id] = {
        displayName: ReactComponentTreeHook$1.getDisplayName(id),
        text: ReactComponentTreeHook$1.getText(id),
        updateCount: ReactComponentTreeHook$1.getUpdateCount(id),
        childIDs: ReactComponentTreeHook$1.getChildIDs(id),
        // Text nodes don't have owners but this is close enough.
        ownerID: ownerID || parentID && ReactComponentTreeHook$1.getOwnerID(parentID) || 0,
        parentID: parentID
      };
      return tree;
    }, {});
  };

  var resetMeasurements = function () {
    var previousStartTime = currentFlushStartTime;
    var previousMeasurements = currentFlushMeasurements;
    var previousOperations = ReactHostOperationHistoryHook.getHistory();

    if (currentFlushNesting === 0) {
      currentFlushStartTime = 0;
      currentFlushMeasurements = [];
      clearHistory();
      return;
    }

    if (previousMeasurements.length || previousOperations.length) {
      var registeredIDs = ReactComponentTreeHook$1.getRegisteredIDs();
      flushHistory.push({
        duration: performanceNow$1() - previousStartTime,
        measurements: previousMeasurements || [],
        operations: previousOperations || [],
        treeSnapshot: getTreeSnapshot(registeredIDs)
      });
    }

    clearHistory();
    currentFlushStartTime = performanceNow$1();
    currentFlushMeasurements = [];
  };

  var checkDebugID = function (debugID) {
    var allowRoot = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

    if (allowRoot && debugID === 0) {
      return;
    }
    if (!debugID) {
      warning$6(false, 'ReactDebugTool: debugID may not be empty.');
    }
  };

  var beginLifeCycleTimer = function (debugID, timerType) {
    if (currentFlushNesting === 0) {
      return;
    }
    if (currentTimerType && !lifeCycleTimerHasWarned) {
      warning$6(false, 'There is an internal error in the React performance measurement code.' + '\n\nDid not expect %s timer to start while %s timer is still in ' + 'progress for %s instance.', timerType, currentTimerType || 'no', debugID === currentTimerDebugID ? 'the same' : 'another');
      lifeCycleTimerHasWarned = true;
    }
    currentTimerStartTime = performanceNow$1();
    currentTimerNestedFlushDuration = 0;
    currentTimerDebugID = debugID;
    currentTimerType = timerType;
  };

  var endLifeCycleTimer = function (debugID, timerType) {
    if (currentFlushNesting === 0) {
      return;
    }
    if (currentTimerType !== timerType && !lifeCycleTimerHasWarned) {
      warning$6(false, 'There is an internal error in the React performance measurement code. ' + 'We did not expect %s timer to stop while %s timer is still in ' + 'progress for %s instance. Please report this as a bug in React.', timerType, currentTimerType || 'no', debugID === currentTimerDebugID ? 'the same' : 'another');
      lifeCycleTimerHasWarned = true;
    }
    if (isProfiling) {
      currentFlushMeasurements.push({
        timerType: timerType,
        instanceID: debugID,
        duration: performanceNow$1() - currentTimerStartTime - currentTimerNestedFlushDuration
      });
    }
    currentTimerStartTime = 0;
    currentTimerNestedFlushDuration = 0;
    currentTimerDebugID = null;
    currentTimerType = null;
  };

  var pauseCurrentLifeCycleTimer = function () {
    var currentTimer = {
      startTime: currentTimerStartTime,
      nestedFlushStartTime: performanceNow$1(),
      debugID: currentTimerDebugID,
      timerType: currentTimerType
    };
    lifeCycleTimerStack.push(currentTimer);
    currentTimerStartTime = 0;
    currentTimerNestedFlushDuration = 0;
    currentTimerDebugID = null;
    currentTimerType = null;
  };

  var resumeCurrentLifeCycleTimer = function () {
    var _lifeCycleTimerStack$ = lifeCycleTimerStack.pop(),
        startTime = _lifeCycleTimerStack$.startTime,
        nestedFlushStartTime = _lifeCycleTimerStack$.nestedFlushStartTime,
        debugID = _lifeCycleTimerStack$.debugID,
        timerType = _lifeCycleTimerStack$.timerType;

    var nestedFlushDuration = performanceNow$1() - nestedFlushStartTime;
    currentTimerStartTime = startTime;
    currentTimerNestedFlushDuration += nestedFlushDuration;
    currentTimerDebugID = debugID;
    currentTimerType = timerType;
  };

  var lastMarkTimeStamp = 0;
  var canUsePerformanceMeasure = typeof performance !== 'undefined' && typeof performance.mark === 'function' && typeof performance.clearMarks === 'function' && typeof performance.measure === 'function' && typeof performance.clearMeasures === 'function';

  var shouldMark = function (debugID) {
    if (!isProfiling || !canUsePerformanceMeasure) {
      return false;
    }
    var element = ReactComponentTreeHook$1.getElement(debugID);
    if (element == null || typeof element !== 'object') {
      return false;
    }
    var isHostElement = typeof element.type === 'string';
    if (isHostElement) {
      return false;
    }
    return true;
  };

  var markBegin = function (debugID, markType) {
    if (!shouldMark(debugID)) {
      return;
    }

    var markName = debugID + '::' + markType;
    lastMarkTimeStamp = performanceNow$1();
    performance.mark(markName);
  };

  var markEnd = function (debugID, markType) {
    if (!shouldMark(debugID)) {
      return;
    }

    var markName = debugID + '::' + markType;
    var displayName = ReactComponentTreeHook$1.getDisplayName(debugID) || 'Unknown';

    // Chrome has an issue of dropping markers recorded too fast:
    // https://bugs.chromium.org/p/chromium/issues/detail?id=640652
    // To work around this, we will not report very small measurements.
    // I determined the magic number by tweaking it back and forth.
    // 0.05ms was enough to prevent the issue, but I set it to 0.1ms to be safe.
    // When the bug is fixed, we can `measure()` unconditionally if we want to.
    var timeStamp = performanceNow$1();
    if (timeStamp - lastMarkTimeStamp > 0.1) {
      var measurementName = displayName + ' [' + markType + ']';
      performance.measure(measurementName, markName);
    }

    performance.clearMarks(markName);
    performance.clearMeasures(measurementName);
  };

  ReactDebugTool$1 = {
    addHook: function (hook) {
      hooks.push(hook);
    },
    removeHook: function (hook) {
      for (var i = 0; i < hooks.length; i++) {
        if (hooks[i] === hook) {
          hooks.splice(i, 1);
          i--;
        }
      }
    },
    isProfiling: function () {
      return isProfiling;
    },
    beginProfiling: function () {
      if (isProfiling) {
        return;
      }

      isProfiling = true;
      flushHistory.length = 0;
      resetMeasurements();
      ReactDebugTool$1.addHook(ReactHostOperationHistoryHook);
    },
    endProfiling: function () {
      if (!isProfiling) {
        return;
      }

      isProfiling = false;
      resetMeasurements();
      ReactDebugTool$1.removeHook(ReactHostOperationHistoryHook);
    },
    getFlushHistory: function () {
      return flushHistory;
    },
    onBeginFlush: function () {
      currentFlushNesting++;
      resetMeasurements();
      pauseCurrentLifeCycleTimer();
      emitEvent('onBeginFlush');
    },
    onEndFlush: function () {
      resetMeasurements();
      currentFlushNesting--;
      resumeCurrentLifeCycleTimer();
      emitEvent('onEndFlush');
    },
    onBeginLifeCycleTimer: function (debugID, timerType) {
      checkDebugID(debugID);
      emitEvent('onBeginLifeCycleTimer', debugID, timerType);
      markBegin(debugID, timerType);
      beginLifeCycleTimer(debugID, timerType);
    },
    onEndLifeCycleTimer: function (debugID, timerType) {
      checkDebugID(debugID);
      endLifeCycleTimer(debugID, timerType);
      markEnd(debugID, timerType);
      emitEvent('onEndLifeCycleTimer', debugID, timerType);
    },
    onBeginProcessingChildContext: function () {
      emitEvent('onBeginProcessingChildContext');
    },
    onEndProcessingChildContext: function () {
      emitEvent('onEndProcessingChildContext');
    },
    onHostOperation: function (operation) {
      checkDebugID(operation.instanceID);
      emitEvent('onHostOperation', operation);
    },
    onSetState: function () {
      emitEvent('onSetState');
    },
    onSetChildren: function (debugID, childDebugIDs) {
      checkDebugID(debugID);
      childDebugIDs.forEach(checkDebugID);
      emitEvent('onSetChildren', debugID, childDebugIDs);
    },
    onBeforeMountComponent: function (debugID, element, parentDebugID) {
      checkDebugID(debugID);
      checkDebugID(parentDebugID, true);
      emitEvent('onBeforeMountComponent', debugID, element, parentDebugID);
      markBegin(debugID, 'mount');
    },
    onMountComponent: function (debugID) {
      checkDebugID(debugID);
      markEnd(debugID, 'mount');
      emitEvent('onMountComponent', debugID);
    },
    onBeforeUpdateComponent: function (debugID, element) {
      checkDebugID(debugID);
      emitEvent('onBeforeUpdateComponent', debugID, element);
      markBegin(debugID, 'update');
    },
    onUpdateComponent: function (debugID) {
      checkDebugID(debugID);
      markEnd(debugID, 'update');
      emitEvent('onUpdateComponent', debugID);
    },
    onBeforeUnmountComponent: function (debugID) {
      checkDebugID(debugID);
      emitEvent('onBeforeUnmountComponent', debugID);
      markBegin(debugID, 'unmount');
    },
    onUnmountComponent: function (debugID) {
      checkDebugID(debugID);
      markEnd(debugID, 'unmount');
      emitEvent('onUnmountComponent', debugID);
    },
    onTestEvent: function () {
      emitEvent('onTestEvent');
    }
  };

  ReactDebugTool$1.addHook(ReactInvalidSetStateWarningHook);
  ReactDebugTool$1.addHook(ReactComponentTreeHook$1);
  var url = ExecutionEnvironment$3.canUseDOM && window.location.href || '';
  if (/[?&]react_perf\b/.test(url)) {
    ReactDebugTool$1.beginProfiling();
  }
}

var ReactDebugTool_1 = ReactDebugTool$1;

// Trust the developer to only use ReactInstrumentation with a __DEV__ check

var debugTool = null;

if (__DEV__) {
  var ReactDebugTool = ReactDebugTool_1;
  debugTool = ReactDebugTool;
}

var ReactInstrumentation$1 = { debugTool: debugTool };

/**
 * Copyright 2016-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * Based on the escape-html library, which is used under the MIT License below:
 *
 * Copyright (c) 2012-2013 TJ Holowaychuk
 * Copyright (c) 2015 Andreas Lubbe
 * Copyright (c) 2015 Tiancheng "Timothy" Gu
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * 'Software'), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * @providesModule escapeTextContentForBrowser
 */

// code copied and modified from escape-html
/**
 * Module variables.
 * @private
 */

var matchHtmlRegExp = /["'&<>]/;

/**
 * Escape special characters in the given string of html.
 *
 * @param  {string} string The string to escape for inserting into HTML
 * @return {string}
 * @public
 */

function escapeHtml(string) {
  var str = '' + string;
  var match = matchHtmlRegExp.exec(str);

  if (!match) {
    return str;
  }

  var escape;
  var html = '';
  var index = 0;
  var lastIndex = 0;

  for (index = match.index; index < str.length; index++) {
    switch (str.charCodeAt(index)) {
      case 34:
        // "
        escape = '&quot;';
        break;
      case 38:
        // &
        escape = '&amp;';
        break;
      case 39:
        // '
        escape = '&#x27;'; // modified from escape-html; used to be '&#39'
        break;
      case 60:
        // <
        escape = '&lt;';
        break;
      case 62:
        // >
        escape = '&gt;';
        break;
      default:
        continue;
    }

    if (lastIndex !== index) {
      html += str.substring(lastIndex, index);
    }

    lastIndex = index + 1;
    html += escape;
  }

  return lastIndex !== index ? html + str.substring(lastIndex, index) : html;
}
// end code copied and modified from escape-html


/**
 * Escapes text to prevent scripting attacks.
 *
 * @param {*} text Text value to escape.
 * @return {string} An escaped string.
 */
function escapeTextContentForBrowser$1(text) {
  if (typeof text === 'boolean' || typeof text === 'number') {
    // this shortcircuit helps perf for types that we know will never have
    // special characters, especially given that this function is used often
    // for numeric dom ids.
    return '' + text;
  }
  return escapeHtml(text);
}

var escapeTextContentForBrowser_1 = escapeTextContentForBrowser$1;

var escapeTextContentForBrowser = escapeTextContentForBrowser_1;

/**
 * Escapes attribute value to prevent scripting attacks.
 *
 * @param {*} value Value to escape.
 * @return {string} An escaped string.
 */
function quoteAttributeValueForBrowser$1(value) {
  return '"' + escapeTextContentForBrowser(value) + '"';
}

var quoteAttributeValueForBrowser_1 = quoteAttributeValueForBrowser$1;

var DOMProperty$3 = DOMProperty_1;
var ReactDOMComponentTree$2 = ReactDOMComponentTree_1;
var ReactInstrumentation = ReactInstrumentation$1;

var quoteAttributeValueForBrowser = quoteAttributeValueForBrowser_1;
var warning$5 = warning;

var VALID_ATTRIBUTE_NAME_REGEX = new RegExp('^[' + DOMProperty$3.ATTRIBUTE_NAME_START_CHAR + '][' + DOMProperty$3.ATTRIBUTE_NAME_CHAR + ']*$');
var illegalAttributeNameCache = {};
var validatedAttributeNameCache = {};

function isAttributeNameSafe(attributeName) {
  if (validatedAttributeNameCache.hasOwnProperty(attributeName)) {
    return true;
  }
  if (illegalAttributeNameCache.hasOwnProperty(attributeName)) {
    return false;
  }
  if (VALID_ATTRIBUTE_NAME_REGEX.test(attributeName)) {
    validatedAttributeNameCache[attributeName] = true;
    return true;
  }
  illegalAttributeNameCache[attributeName] = true;
  warning$5(false, 'Invalid attribute name: `%s`', attributeName);
  return false;
}

function shouldIgnoreValue(propertyInfo, value) {
  return value == null || propertyInfo.hasBooleanValue && !value || propertyInfo.hasNumericValue && isNaN(value) || propertyInfo.hasPositiveNumericValue && value < 1 || propertyInfo.hasOverloadedBooleanValue && value === false;
}

/**
 * Operations for dealing with DOM properties.
 */
var DOMPropertyOperations$1 = {

  /**
   * Creates markup for the ID property.
   *
   * @param {string} id Unescaped ID.
   * @return {string} Markup string.
   */
  createMarkupForID: function (id) {
    return DOMProperty$3.ID_ATTRIBUTE_NAME + '=' + quoteAttributeValueForBrowser(id);
  },

  setAttributeForID: function (node, id) {
    node.setAttribute(DOMProperty$3.ID_ATTRIBUTE_NAME, id);
  },

  createMarkupForRoot: function () {
    return DOMProperty$3.ROOT_ATTRIBUTE_NAME + '=""';
  },

  setAttributeForRoot: function (node) {
    node.setAttribute(DOMProperty$3.ROOT_ATTRIBUTE_NAME, '');
  },

  /**
   * Creates markup for a property.
   *
   * @param {string} name
   * @param {*} value
   * @return {?string} Markup string, or null if the property was invalid.
   */
  createMarkupForProperty: function (name, value) {
    var propertyInfo = DOMProperty$3.properties.hasOwnProperty(name) ? DOMProperty$3.properties[name] : null;
    if (propertyInfo) {
      if (shouldIgnoreValue(propertyInfo, value)) {
        return '';
      }
      var attributeName = propertyInfo.attributeName;
      if (propertyInfo.hasBooleanValue || propertyInfo.hasOverloadedBooleanValue && value === true) {
        return attributeName + '=""';
      }
      return attributeName + '=' + quoteAttributeValueForBrowser(value);
    } else if (DOMProperty$3.isCustomAttribute(name)) {
      if (value == null) {
        return '';
      }
      return name + '=' + quoteAttributeValueForBrowser(value);
    }
    return null;
  },

  /**
   * Creates markup for a custom property.
   *
   * @param {string} name
   * @param {*} value
   * @return {string} Markup string, or empty string if the property was invalid.
   */
  createMarkupForCustomAttribute: function (name, value) {
    if (!isAttributeNameSafe(name) || value == null) {
      return '';
    }
    return name + '=' + quoteAttributeValueForBrowser(value);
  },

  /**
   * Sets the value for a property on a node.
   *
   * @param {DOMElement} node
   * @param {string} name
   * @param {*} value
   */
  setValueForProperty: function (node, name, value) {
    var propertyInfo = DOMProperty$3.properties.hasOwnProperty(name) ? DOMProperty$3.properties[name] : null;
    if (propertyInfo) {
      var mutationMethod = propertyInfo.mutationMethod;
      if (mutationMethod) {
        mutationMethod(node, value);
      } else if (shouldIgnoreValue(propertyInfo, value)) {
        DOMPropertyOperations$1.deleteValueForProperty(node, name);
        return;
      } else if (propertyInfo.mustUseProperty) {
        // Contrary to `setAttribute`, object properties are properly
        // `toString`ed by IE8/9.
        node[propertyInfo.propertyName] = value;
      } else {
        var attributeName = propertyInfo.attributeName;
        var namespace = propertyInfo.attributeNamespace;
        // `setAttribute` with objects becomes only `[object]` in IE8/9,
        // ('' + value) makes it output the correct toString()-value.
        if (namespace) {
          node.setAttributeNS(namespace, attributeName, '' + value);
        } else if (propertyInfo.hasBooleanValue || propertyInfo.hasOverloadedBooleanValue && value === true) {
          node.setAttribute(attributeName, '');
        } else {
          node.setAttribute(attributeName, '' + value);
        }
      }
    } else if (DOMProperty$3.isCustomAttribute(name)) {
      DOMPropertyOperations$1.setValueForAttribute(node, name, value);
      return;
    }

    if (__DEV__) {
      var payload = {};
      payload[name] = value;
      ReactInstrumentation.debugTool.onHostOperation({
        instanceID: ReactDOMComponentTree$2.getInstanceFromNode(node)._debugID,
        type: 'update attribute',
        payload: payload
      });
    }
  },

  setValueForAttribute: function (node, name, value) {
    if (!isAttributeNameSafe(name)) {
      return;
    }
    if (value == null) {
      node.removeAttribute(name);
    } else {
      node.setAttribute(name, '' + value);
    }

    if (__DEV__) {
      var payload = {};
      payload[name] = value;
      ReactInstrumentation.debugTool.onHostOperation({
        instanceID: ReactDOMComponentTree$2.getInstanceFromNode(node)._debugID,
        type: 'update attribute',
        payload: payload
      });
    }
  },

  /**
   * Deletes an attributes from a node.
   *
   * @param {DOMElement} node
   * @param {string} name
   */
  deleteValueForAttribute: function (node, name) {
    node.removeAttribute(name);
    if (__DEV__) {
      ReactInstrumentation.debugTool.onHostOperation({
        instanceID: ReactDOMComponentTree$2.getInstanceFromNode(node)._debugID,
        type: 'remove attribute',
        payload: name
      });
    }
  },

  /**
   * Deletes the value for a property on a node.
   *
   * @param {DOMElement} node
   * @param {string} name
   */
  deleteValueForProperty: function (node, name) {
    var propertyInfo = DOMProperty$3.properties.hasOwnProperty(name) ? DOMProperty$3.properties[name] : null;
    if (propertyInfo) {
      var mutationMethod = propertyInfo.mutationMethod;
      if (mutationMethod) {
        mutationMethod(node, undefined);
      } else if (propertyInfo.mustUseProperty) {
        var propName = propertyInfo.propertyName;
        if (propertyInfo.hasBooleanValue) {
          node[propName] = false;
        } else {
          node[propName] = '';
        }
      } else {
        node.removeAttribute(propertyInfo.attributeName);
      }
    } else if (DOMProperty$3.isCustomAttribute(name)) {
      node.removeAttribute(name);
    }

    if (__DEV__) {
      ReactInstrumentation.debugTool.onHostOperation({
        instanceID: ReactDOMComponentTree$2.getInstanceFromNode(node)._debugID,
        type: 'remove attribute',
        payload: name
      });
    }
  }

};

var DOMPropertyOperations_1 = DOMPropertyOperations$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 *
 * @providesModule ReactPropTypesSecret
 */

var ReactPropTypesSecret$1 = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';

var ReactPropTypesSecret_1 = ReactPropTypesSecret$1;

var React2 = React;
var ReactPropTypesSecret = ReactPropTypesSecret_1;

var warning$9 = warning;

var hasReadOnlyValue = {
  'button': true,
  'checkbox': true,
  'image': true,
  'hidden': true,
  'radio': true,
  'reset': true,
  'submit': true
};

var propTypes = {
  value: function (props, propName, componentName) {
    if (!props[propName] || hasReadOnlyValue[props.type] || props.onChange || props.readOnly || props.disabled) {
      return null;
    }
    return new Error('You provided a `value` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultValue`. Otherwise, ' + 'set either `onChange` or `readOnly`.');
  },
  checked: function (props, propName, componentName) {
    if (!props[propName] || props.onChange || props.readOnly || props.disabled) {
      return null;
    }
    return new Error('You provided a `checked` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultChecked`. Otherwise, ' + 'set either `onChange` or `readOnly`.');
  },
  onChange: React2.PropTypes.func
};

var loggedTypeFailures = {};
function getDeclarationErrorAddendum$1(ownerName) {
  if (ownerName) {
    return '\n\nCheck the render method of `' + ownerName + '`.';
  }
  return '';
}

/**
 * Provide a linked `value` attribute for controlled forms. You should not use
 * this outside of the ReactDOM controlled form components.
 */
var ReactControlledValuePropTypes$1 = {
  checkPropTypes: function (tagName, props, ownerName) {
    for (var propName in propTypes) {
      if (propTypes.hasOwnProperty(propName)) {
        var error = propTypes[propName](props, propName, tagName, 'prop', null, ReactPropTypesSecret);
      }
      if (error instanceof Error && !(error.message in loggedTypeFailures)) {
        // Only monitor this failure once because there tends to be a lot of the
        // same error.
        loggedTypeFailures[error.message] = true;

        var addendum = getDeclarationErrorAddendum$1(ownerName);
        warning$9(false, 'Failed form propType: %s%s', error.message, addendum);
      }
    }
  }
};

var ReactControlledValuePropTypes_1 = ReactControlledValuePropTypes$1;

var DOMPropertyOperations$2 = DOMPropertyOperations_1;
var ReactControlledValuePropTypes = ReactControlledValuePropTypes_1;
var ReactDOMComponentTree$3 = ReactDOMComponentTree_1;

var _require$5 = ReactDebugCurrentFiber_1;
var getCurrentFiberOwnerName$3 = _require$5.getCurrentFiberOwnerName;

var invariant$10 = invariant;
var warning$8 = warning;

var didWarnValueDefaultValue = false;
var didWarnCheckedDefaultChecked = false;
var didWarnControlledToUncontrolled = false;
var didWarnUncontrolledToControlled = false;

function isControlled(props) {
  var usesChecked = props.type === 'checkbox' || props.type === 'radio';
  return usesChecked ? props.checked != null : props.value != null;
}

/**
 * Implements an <input> host component that allows setting these optional
 * props: `checked`, `value`, `defaultChecked`, and `defaultValue`.
 *
 * If `checked` or `value` are not supplied (or null/undefined), user actions
 * that affect the checked state or value will trigger updates to the element.
 *
 * If they are supplied (and not null/undefined), the rendered element will not
 * trigger updates to the element. Instead, the props must change in order for
 * the rendered element to be updated.
 *
 * The rendered element will be initialized as unchecked (or `defaultChecked`)
 * with an empty value (or `defaultValue`).
 *
 * See http://www.w3.org/TR/2012/WD-html5-20121025/the-input-element.html
 */
var ReactDOMInput = {
  getHostProps: function (element, props) {
    var node = element;
    var value = props.value;
    var checked = props.checked;

    var hostProps = Object.assign({
      // Make sure we set .type before any other properties (setting .value
      // before .type means .value is lost in IE11 and below)
      type: undefined,
      // Make sure we set .step before .value (setting .value before .step
      // means .value is rounded on mount, based upon step precision)
      step: undefined,
      // Make sure we set .min & .max before .value (to ensure proper order
      // in corner cases such as min or max deriving from value, e.g. Issue #7170)
      min: undefined,
      max: undefined
    }, props, {
      defaultChecked: undefined,
      defaultValue: undefined,
      value: value != null ? value : node._wrapperState.initialValue,
      checked: checked != null ? checked : node._wrapperState.initialChecked
    });

    return hostProps;
  },

  mountWrapper: function (element, props) {
    if (__DEV__) {
      ReactControlledValuePropTypes.checkPropTypes('input', props, getCurrentFiberOwnerName$3());

      if (props.checked !== undefined && props.defaultChecked !== undefined && !didWarnCheckedDefaultChecked) {
        warning$8(false, '%s contains an input of type %s with both checked and defaultChecked props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the checked prop, or the defaultChecked prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerName$3() || 'A component', props.type);
        didWarnCheckedDefaultChecked = true;
      }
      if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue) {
        warning$8(false, '%s contains an input of type %s with both value and defaultValue props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerName$3() || 'A component', props.type);
        didWarnValueDefaultValue = true;
      }
    }

    var defaultValue = props.defaultValue;
    var node = element;
    node._wrapperState = {
      initialChecked: props.checked != null ? props.checked : props.defaultChecked,
      initialValue: props.value != null ? props.value : defaultValue
    };

    if (__DEV__) {
      node._wrapperState.controlled = isControlled(props);
    }
  },

  updateWrapper: function (element, props) {
    var node = element;
    if (__DEV__) {
      var controlled = isControlled(props);

      if (!node._wrapperState.controlled && controlled && !didWarnUncontrolledToControlled) {
        warning$8(false, '%s is changing an uncontrolled input of type %s to be controlled. ' + 'Input elements should not switch from uncontrolled to controlled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components', getCurrentFiberOwnerName$3() || 'A component', props.type);
        didWarnUncontrolledToControlled = true;
      }
      if (node._wrapperState.controlled && !controlled && !didWarnControlledToUncontrolled) {
        warning$8(false, '%s is changing a controlled input of type %s to be uncontrolled. ' + 'Input elements should not switch from controlled to uncontrolled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components', getCurrentFiberOwnerName$3() || 'A component', props.type);
        didWarnControlledToUncontrolled = true;
      }
    }

    var checked = props.checked;
    if (checked != null) {
      DOMPropertyOperations$2.setValueForProperty(node, 'checked', checked || false);
    }

    var value = props.value;
    if (value != null) {

      // Cast `value` to a string to ensure the value is set correctly. While
      // browsers typically do this as necessary, jsdom doesn't.
      var newValue = '' + value;

      // To avoid side effects (such as losing text selection), only set value if changed
      if (newValue !== node.value) {
        node.value = newValue;
      }
    } else {
      if (props.value == null && props.defaultValue != null) {
        // In Chrome, assigning defaultValue to certain input types triggers input validation.
        // For number inputs, the display value loses trailing decimal points. For email inputs,
        // Chrome raises "The specified value <x> is not a valid email address".
        //
        // Here we check to see if the defaultValue has actually changed, avoiding these problems
        // when the user is inputting text
        //
        // https://github.com/facebook/react/issues/7253
        if (node.defaultValue !== '' + props.defaultValue) {
          node.defaultValue = '' + props.defaultValue;
        }
      }
      if (props.checked == null && props.defaultChecked != null) {
        node.defaultChecked = !!props.defaultChecked;
      }
    }
  },

  postMountWrapper: function (element, props) {
    var node = element;

    // Detach value from defaultValue. We won't do anything if we're working on
    // submit or reset inputs as those values & defaultValues are linked. They
    // are not resetable nodes so this operation doesn't matter and actually
    // removes browser-default values (eg "Submit Query") when no value is
    // provided.

    switch (props.type) {
      case 'submit':
      case 'reset':
        break;
      case 'color':
      case 'date':
      case 'datetime':
      case 'datetime-local':
      case 'month':
      case 'time':
      case 'week':
        // This fixes the no-show issue on iOS Safari and Android Chrome:
        // https://github.com/facebook/react/issues/7233
        node.value = '';
        node.value = node.defaultValue;
        break;
      default:
        node.value = node.value;
        break;
    }

    // Normally, we'd just do `node.checked = node.checked` upon initial mount, less this bug
    // this is needed to work around a chrome bug where setting defaultChecked
    // will sometimes influence the value of checked (even after detachment).
    // Reference: https://bugs.chromium.org/p/chromium/issues/detail?id=608416
    // We need to temporarily unset name to avoid disrupting radio button groups.
    var name = node.name;
    if (name !== '') {
      node.name = '';
    }
    node.defaultChecked = !node.defaultChecked;
    node.defaultChecked = !node.defaultChecked;
    if (name !== '') {
      node.name = name;
    }
  },

  restoreControlledState: function (element, props) {
    var node = element;
    ReactDOMInput.updateWrapper(node, props);
    updateNamedCousins(node, props);
  }
};

function updateNamedCousins(rootNode, props) {
  var name = props.name;
  if (props.type === 'radio' && name != null) {
    var queryRoot = rootNode;

    while (queryRoot.parentNode) {
      queryRoot = queryRoot.parentNode;
    }

    // If `rootNode.form` was non-null, then we could try `form.elements`,
    // but that sometimes behaves strangely in IE8. We could also try using
    // `form.getElementsByName`, but that will only return direct children
    // and won't include inputs that use the HTML5 `form=` attribute. Since
    // the input might not even be in a form. It might not even be in the
    // document. Let's just use the local `querySelectorAll` to ensure we don't
    // miss anything.
    var group = queryRoot.querySelectorAll('input[name=' + JSON.stringify('' + name) + '][type="radio"]');

    for (var i = 0; i < group.length; i++) {
      var otherNode = group[i];
      if (otherNode === rootNode || otherNode.form !== rootNode.form) {
        continue;
      }
      // This will throw if radio buttons rendered by different copies of React
      // and the same name are rendered into the same form (same as #1939).
      // That's probably okay; we don't support it just as we don't support
      // mixing React radio buttons with non-React ones.
      var otherInstance = ReactDOMComponentTree$3.getInstanceFromNode(otherNode);
      invariant$10(otherInstance, 'ReactDOMInput: Mixing React and non-React radio inputs with the ' + 'same `name` is not supported.');
      // If this is a controlled radio button group, forcing the input that
      // was previously checked to update will cause it to be come re-checked
      // as appropriate.
      ReactDOMInput.updateWrapper(otherNode, otherInstance.memoizedProps);
    }
  }
}

var ReactDOMFiberInput$1 = ReactDOMInput;

var React$1 = React;

var warning$10 = warning;

function flattenChildren(children) {
  var content = '';

  // Flatten children and warn if they aren't strings or numbers;
  // invalid types are ignored.
  // We can silently skip them because invalid DOM nesting warning
  // catches these cases in Fiber.
  React$1.Children.forEach(children, function (child) {
    if (child == null) {
      return;
    }
    if (typeof child === 'string' || typeof child === 'number') {
      content += child;
    }
  });

  return content;
}

/**
 * Implements an <option> host component that warns when `selected` is set.
 */
var ReactDOMOption = {
  mountWrapper: function (element, props) {
    // TODO (yungsters): Remove support for `selected` in <option>.
    if (__DEV__) {
      warning$10(props.selected == null, 'Use the `defaultValue` or `value` props on <select> instead of ' + 'setting `selected` on <option>.');
    }
  },

  postMountWrapper: function (element, props) {
    // value="" should make a value attribute (#6219)
    if (props.value != null) {
      element.setAttribute('value', props.value);
    }
  },

  getHostProps: function (element, props) {
    var hostProps = Object.assign({ children: undefined }, props);

    var content = flattenChildren(props.children);

    if (content) {
      hostProps.children = content;
    }

    return hostProps;
  }

};

var ReactDOMFiberOption$1 = ReactDOMOption;

var ReactControlledValuePropTypes$2 = ReactControlledValuePropTypes_1;

var _require$6 = ReactDebugCurrentFiber_1;
var getCurrentFiberOwnerName$4 = _require$6.getCurrentFiberOwnerName;

var warning$11 = warning;

var didWarnValueDefaultValue$1 = false;

function getDeclarationErrorAddendum$2() {
  var ownerName = getCurrentFiberOwnerName$4();
  if (ownerName) {
    return '\n\nCheck the render method of `' + ownerName + '`.';
  }
  return '';
}

var valuePropNames = ['value', 'defaultValue'];

/**
 * Validation function for `value` and `defaultValue`.
 */
function checkSelectPropTypes(props) {
  ReactControlledValuePropTypes$2.checkPropTypes('select', props, getCurrentFiberOwnerName$4());

  for (var i = 0; i < valuePropNames.length; i++) {
    var propName = valuePropNames[i];
    if (props[propName] == null) {
      continue;
    }
    var isArray = Array.isArray(props[propName]);
    if (props.multiple && !isArray) {
      warning$11(false, 'The `%s` prop supplied to <select> must be an array if ' + '`multiple` is true.%s', propName, getDeclarationErrorAddendum$2());
    } else if (!props.multiple && isArray) {
      warning$11(false, 'The `%s` prop supplied to <select> must be a scalar ' + 'value if `multiple` is false.%s', propName, getDeclarationErrorAddendum$2());
    }
  }
}

function updateOptions(node, multiple, propValue) {
  var options = node.options;

  if (multiple) {
    var selectedValues = propValue;
    var selectedValue = {};
    for (var i = 0; i < selectedValues.length; i++) {
      selectedValue['' + selectedValues[i]] = true;
    }
    for (var _i = 0; _i < options.length; _i++) {
      var selected = selectedValue.hasOwnProperty(options[_i].value);
      if (options[_i].selected !== selected) {
        options[_i].selected = selected;
      }
    }
  } else {
    // Do not set `select.value` as exact behavior isn't consistent across all
    // browsers for all cases.
    var _selectedValue = '' + propValue;
    for (var _i2 = 0; _i2 < options.length; _i2++) {
      if (options[_i2].value === _selectedValue) {
        options[_i2].selected = true;
        return;
      }
    }
    if (options.length) {
      options[0].selected = true;
    }
  }
}

/**
 * Implements a <select> host component that allows optionally setting the
 * props `value` and `defaultValue`. If `multiple` is false, the prop must be a
 * stringable. If `multiple` is true, the prop must be an array of stringables.
 *
 * If `value` is not supplied (or null/undefined), user actions that change the
 * selected option will trigger updates to the rendered options.
 *
 * If it is supplied (and not null/undefined), the rendered options will not
 * update in response to user actions. Instead, the `value` prop must change in
 * order for the rendered options to update.
 *
 * If `defaultValue` is provided, any options with the supplied values will be
 * selected.
 */
var ReactDOMSelect = {
  getHostProps: function (element, props) {
    return Object.assign({}, props, {
      value: undefined
    });
  },

  mountWrapper: function (element, props) {
    var node = element;
    if (__DEV__) {
      checkSelectPropTypes(props);
    }

    var value = props.value;
    node._wrapperState = {
      initialValue: value != null ? value : props.defaultValue,
      wasMultiple: !!props.multiple
    };

    if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue$1) {
      warning$11(false, 'Select elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled select ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components');
      didWarnValueDefaultValue$1 = true;
    }

    node.multiple = !!props.multiple;
    if (value != null) {
      updateOptions(node, !!props.multiple, value);
    } else if (props.defaultValue != null) {
      updateOptions(node, !!props.multiple, props.defaultValue);
    }
  },

  postUpdateWrapper: function (element, props) {
    var node = element;
    // After the initial mount, we control selected-ness manually so don't pass
    // this value down
    node._wrapperState.initialValue = undefined;

    var wasMultiple = node._wrapperState.wasMultiple;
    node._wrapperState.wasMultiple = !!props.multiple;

    var value = props.value;
    if (value != null) {
      updateOptions(node, !!props.multiple, value);
    } else if (wasMultiple !== !!props.multiple) {
      // For simplicity, reapply `defaultValue` if `multiple` is toggled.
      if (props.defaultValue != null) {
        updateOptions(node, !!props.multiple, props.defaultValue);
      } else {
        // Revert the select back to its default unselected state.
        updateOptions(node, !!props.multiple, props.multiple ? [] : '');
      }
    }
  },

  restoreControlledState: function (element, props) {
    var node = element;
    var value = props.value;

    if (value != null) {
      updateOptions(node, !!props.multiple, value);
    }
  }
};

var ReactDOMFiberSelect$1 = ReactDOMSelect;

var ReactControlledValuePropTypes$3 = ReactControlledValuePropTypes_1;

var _require$7 = ReactDebugCurrentFiber_1;
var getCurrentFiberOwnerName$5 = _require$7.getCurrentFiberOwnerName;

var invariant$11 = invariant;
var warning$12 = warning;

var didWarnValDefaultVal = false;

/**
 * Implements a <textarea> host component that allows setting `value`, and
 * `defaultValue`. This differs from the traditional DOM API because value is
 * usually set as PCDATA children.
 *
 * If `value` is not supplied (or null/undefined), user actions that affect the
 * value will trigger updates to the element.
 *
 * If `value` is supplied (and not null/undefined), the rendered element will
 * not trigger updates to the element. Instead, the `value` prop must change in
 * order for the rendered element to be updated.
 *
 * The rendered element will be initialized with an empty value, the prop
 * `defaultValue` if specified, or the children content (deprecated).
 */
var ReactDOMTextarea = {
  getHostProps: function (element, props) {
    var node = element;
    invariant$11(props.dangerouslySetInnerHTML == null, '`dangerouslySetInnerHTML` does not make sense on <textarea>.');

    // Always set children to the same thing. In IE9, the selection range will
    // get reset if `textContent` is mutated.  We could add a check in setTextContent
    // to only set the value if/when the value differs from the node value (which would
    // completely solve this IE9 bug), but Sebastian+Ben seemed to like this solution.
    // The value can be a boolean or object so that's why it's forced to be a string.
    var hostProps = Object.assign({}, props, {
      value: undefined,
      defaultValue: undefined,
      children: '' + node._wrapperState.initialValue
    });

    return hostProps;
  },

  mountWrapper: function (element, props) {
    var node = element;
    if (__DEV__) {
      ReactControlledValuePropTypes$3.checkPropTypes('textarea', props, getCurrentFiberOwnerName$5());
      if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValDefaultVal) {
        warning$12(false, 'Textarea elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled textarea ' + 'and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components');
        didWarnValDefaultVal = true;
      }
    }

    var value = props.value;
    var initialValue = value;

    // Only bother fetching default value if we're going to use it
    if (value == null) {
      var defaultValue = props.defaultValue;
      // TODO (yungsters): Remove support for children content in <textarea>.
      var children = props.children;
      if (children != null) {
        if (__DEV__) {
          warning$12(false, 'Use the `defaultValue` or `value` props instead of setting ' + 'children on <textarea>.');
        }
        invariant$11(defaultValue == null, 'If you supply `defaultValue` on a <textarea>, do not pass children.');
        if (Array.isArray(children)) {
          invariant$11(children.length <= 1, '<textarea> can only have at most one child.');
          children = children[0];
        }

        defaultValue = '' + children;
      }
      if (defaultValue == null) {
        defaultValue = '';
      }
      initialValue = defaultValue;
    }

    node._wrapperState = {
      initialValue: '' + initialValue
    };
  },

  updateWrapper: function (element, props) {
    var node = element;
    var value = props.value;
    if (value != null) {
      // Cast `value` to a string to ensure the value is set correctly. While
      // browsers typically do this as necessary, jsdom doesn't.
      var newValue = '' + value;

      // To avoid side effects (such as losing text selection), only set value if changed
      if (newValue !== node.value) {
        node.value = newValue;
      }
      if (props.defaultValue == null) {
        node.defaultValue = newValue;
      }
    }
    if (props.defaultValue != null) {
      node.defaultValue = props.defaultValue;
    }
  },

  postMountWrapper: function (element, props) {
    var node = element;
    // This is in postMount because we need access to the DOM node, which is not
    // available until after the component has mounted.
    var textContent = node.textContent;

    // Only set node.value if textContent is equal to the expected
    // initial value. In IE10/IE11 there is a bug where the placeholder attribute
    // will populate textContent as well.
    // https://developer.microsoft.com/microsoft-edge/platform/issues/101525/
    if (textContent === node._wrapperState.initialValue) {
      node.value = textContent;
    }
  },

  restoreControlledState: function (element, props) {
    // DOM component is still mounted; update
    ReactDOMTextarea.updateWrapper(element, props);
  }

};

var ReactDOMFiberTextarea$1 = ReactDOMTextarea;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule createMicrosoftUnsafeLocalFunction
 */

/* globals MSApp */

/**
 * Create a function which has 'unsafe' privileges (required by windows8 apps)
 */

var createMicrosoftUnsafeLocalFunction$1 = function (func) {
  if (typeof MSApp !== 'undefined' && MSApp.execUnsafeLocalFunction) {
    return function (arg0, arg1, arg2, arg3) {
      MSApp.execUnsafeLocalFunction(function () {
        return func(arg0, arg1, arg2, arg3);
      });
    };
  } else {
    return func;
  }
};

var createMicrosoftUnsafeLocalFunction_1 = createMicrosoftUnsafeLocalFunction$1;

var ExecutionEnvironment$4 = ExecutionEnvironment;
var DOMNamespaces$2 = DOMNamespaces_1;

var WHITESPACE_TEST = /^[ \r\n\t\f]/;
var NONVISIBLE_TEST = /<(!--|link|noscript|meta|script|style)[ \r\n\t\f\/>]/;

var createMicrosoftUnsafeLocalFunction = createMicrosoftUnsafeLocalFunction_1;

// SVG temp container for IE lacking innerHTML
var reusableSVGContainer;

/**
 * Set the innerHTML property of a node, ensuring that whitespace is preserved
 * even in IE8.
 *
 * @param {DOMElement} node
 * @param {string} html
 * @internal
 */
var setInnerHTML$1 = createMicrosoftUnsafeLocalFunction(function (node, html) {
  // IE does not have innerHTML for SVG nodes, so instead we inject the
  // new markup in a temp node and then move the child nodes across into
  // the target node
  if (node.namespaceURI === DOMNamespaces$2.svg && !('innerHTML' in node)) {
    reusableSVGContainer = reusableSVGContainer || document.createElement('div');
    reusableSVGContainer.innerHTML = '<svg>' + html + '</svg>';
    var svgNode = reusableSVGContainer.firstChild;
    while (svgNode.firstChild) {
      node.appendChild(svgNode.firstChild);
    }
  } else {
    node.innerHTML = html;
  }
});

if (ExecutionEnvironment$4.canUseDOM) {
  // IE8: When updating a just created node with innerHTML only leading
  // whitespace is removed. When updating an existing node with innerHTML
  // whitespace in root TextNodes is also collapsed.
  // @see quirksmode.org/bugreports/archives/2004/11/innerhtml_and_t.html

  // Feature detection; only IE8 is known to behave improperly like this.
  var testElement = document.createElement('div');
  testElement.innerHTML = ' ';
  if (testElement.innerHTML === '') {
    setInnerHTML$1 = function (node, html) {
      // Magic theory: IE8 supposedly differentiates between added and updated
      // nodes when processing innerHTML, innerHTML on updated nodes suffers
      // from worse whitespace behavior. Re-adding a node like this triggers
      // the initial and more favorable whitespace behavior.
      // TODO: What to do on a detached node?
      if (node.parentNode) {
        node.parentNode.replaceChild(node, node);
      }

      // We also implement a workaround for non-visible tags disappearing into
      // thin air on IE8, this only happens if there is no visible text
      // in-front of the non-visible tags. Piggyback on the whitespace fix
      // and simply check if any non-visible tags appear in the source.
      if (WHITESPACE_TEST.test(html) || html[0] === '<' && NONVISIBLE_TEST.test(html)) {
        // Recover leading whitespace by temporarily prepending any character.
        // \uFEFF has the potential advantage of being zero-width/invisible.
        // UglifyJS drops U+FEFF chars when parsing, so use String.fromCharCode
        // in hopes that this is preserved even if "\uFEFF" is transformed to
        // the actual Unicode character (by Babel, for example).
        // https://github.com/mishoo/UglifyJS2/blob/v2.4.20/lib/parse.js#L216
        node.innerHTML = String.fromCharCode(0xFEFF) + html;

        // deleteData leaves an empty `TextNode` which offsets the index of all
        // children. Definitely want to avoid this.
        var textNode = node.firstChild;
        if (textNode.data.length === 1) {
          node.removeChild(textNode);
        } else {
          textNode.deleteData(0, 1);
        }
      } else {
        node.innerHTML = html;
      }
    };
  }
  testElement = null;
}

var setInnerHTML_1 = setInnerHTML$1;

var ExecutionEnvironment$5 = ExecutionEnvironment;
var escapeTextContentForBrowser$2 = escapeTextContentForBrowser_1;
var setInnerHTML$2 = setInnerHTML_1;

/**
 * Set the textContent property of a node, ensuring that whitespace is preserved
 * even in IE8. innerText is a poor substitute for textContent and, among many
 * issues, inserts <br> instead of the literal newline chars. innerHTML behaves
 * as it should.
 *
 * @param {DOMElement} node
 * @param {string} text
 * @internal
 */
var setTextContent$1 = function (node, text) {
  if (text) {
    var firstChild = node.firstChild;

    if (firstChild && firstChild === node.lastChild && firstChild.nodeType === 3) {
      firstChild.nodeValue = text;
      return;
    }
  }
  node.textContent = text;
};

if (ExecutionEnvironment$5.canUseDOM) {
  if (!('textContent' in document.documentElement)) {
    setTextContent$1 = function (node, text) {
      if (node.nodeType === 3) {
        node.nodeValue = text;
        return;
      }
      setInnerHTML$2(node, escapeTextContentForBrowser$2(text));
    };
  }
}

var setTextContent_1 = setTextContent$1;

var ReactDOMComponentTree$4 = ReactDOMComponentTree_1;

function isCheckable(elem) {
  var type = elem.type;
  var nodeName = elem.nodeName;
  return nodeName && nodeName.toLowerCase() === 'input' && (type === 'checkbox' || type === 'radio');
}

function getTracker(inst) {
  if (typeof inst.tag === 'number') {
    inst = inst.stateNode;
  }
  return inst._wrapperState.valueTracker;
}

function attachTracker(inst, tracker) {
  inst._wrapperState.valueTracker = tracker;
}

function detachTracker(inst) {
  delete inst._wrapperState.valueTracker;
}

function getValueFromNode(node) {
  var value;
  if (node) {
    value = isCheckable(node) ? '' + node.checked : node.value;
  }
  return value;
}

function trackValueOnNode(node, inst) {
  var valueField = isCheckable(node) ? 'checked' : 'value';
  var descriptor = Object.getOwnPropertyDescriptor(node.constructor.prototype, valueField);

  var currentValue = '' + node[valueField];

  // if someone has already defined a value or Safari, then bail
  // and don't track value will cause over reporting of changes,
  // but it's better then a hard failure
  // (needed for certain tests that spyOn input values and Safari)
  if (node.hasOwnProperty(valueField) || typeof descriptor.get !== 'function' || typeof descriptor.set !== 'function') {
    return;
  }

  Object.defineProperty(node, valueField, {
    enumerable: descriptor.enumerable,
    configurable: true,
    get: function () {
      return descriptor.get.call(this);
    },
    set: function (value) {
      currentValue = '' + value;
      descriptor.set.call(this, value);
    }
  });

  var tracker = {
    getValue: function () {
      return currentValue;
    },
    setValue: function (value) {
      currentValue = '' + value;
    },
    stopTracking: function () {
      detachTracker(inst);
      delete node[valueField];
    }
  };
  return tracker;
}

var inputValueTracking$1 = {
  // exposed for testing
  _getTrackerFromNode: function (node) {
    return getTracker(ReactDOMComponentTree$4.getInstanceFromNode(node));
  },


  trackNode: function (node) {
    if (node._wrapperState.valueTracker) {
      return;
    }
    node._wrapperState.valueTracker = trackValueOnNode(node, node);
  },

  track: function (inst) {
    if (getTracker(inst)) {
      return;
    }
    var node = ReactDOMComponentTree$4.getNodeFromInstance(inst);
    attachTracker(inst, trackValueOnNode(node, inst));
  },

  updateValueIfChanged: function (inst) {
    if (!inst) {
      return false;
    }
    var tracker = getTracker(inst);

    if (!tracker) {
      if (typeof inst.tag === 'number') {
        inputValueTracking$1.trackNode(inst.stateNode);
      } else {
        inputValueTracking$1.track(inst);
      }
      return true;
    }

    var lastValue = tracker.getValue();
    var nextValue = getValueFromNode(ReactDOMComponentTree$4.getNodeFromInstance(inst));

    if (nextValue !== lastValue) {
      tracker.setValue(nextValue);
      return true;
    }

    return false;
  },
  stopTracking: function (inst) {
    var tracker = getTracker(inst);
    if (tracker) {
      tracker.stopTracking();
    }
  }
};

var inputValueTracking_1 = inputValueTracking$1;

var DOMProperty$4 = DOMProperty_1;
var ReactComponentTreeHook$2 = ReactComponentTreeHook_1;
var ReactDebugCurrentFiber$1 = ReactDebugCurrentFiber_1;

var warning$13 = warning;

var warnedProperties = {};
var rARIA = new RegExp('^(aria)-[' + DOMProperty$4.ATTRIBUTE_NAME_CHAR + ']*$');

function getStackAddendum(debugID) {
  if (debugID != null) {
    // This can only happen on Stack
    return ReactComponentTreeHook$2.getStackAddendumByID(debugID);
  } else {
    // This can only happen on Fiber
    return ReactDebugCurrentFiber$1.getCurrentFiberStackAddendum();
  }
}

function validateProperty(tagName, name, debugID) {
  if (warnedProperties.hasOwnProperty(name) && warnedProperties[name]) {
    return true;
  }

  if (rARIA.test(name)) {
    var lowerCasedName = name.toLowerCase();
    var standardName = DOMProperty$4.getPossibleStandardName.hasOwnProperty(lowerCasedName) ? DOMProperty$4.getPossibleStandardName[lowerCasedName] : null;

    // If this is an aria-* attribute, but is not listed in the known DOM
    // DOM properties, then it is an invalid aria-* attribute.
    if (standardName == null) {
      warnedProperties[name] = true;
      return false;
    }
    // aria-* attributes should be lowercase; suggest the lowercase version.
    if (name !== standardName) {
      warning$13(false, 'Unknown ARIA attribute %s. Did you mean %s?%s', name, standardName, getStackAddendum(debugID));
      warnedProperties[name] = true;
      return true;
    }
  }

  return true;
}

function warnInvalidARIAProps(type, props, debugID) {
  var invalidProps = [];

  for (var key in props) {
    var isValid = validateProperty(type, key, debugID);
    if (!isValid) {
      invalidProps.push(key);
    }
  }

  var unknownPropString = invalidProps.map(function (prop) {
    return '`' + prop + '`';
  }).join(', ');

  if (invalidProps.length === 1) {
    warning$13(false, 'Invalid aria prop %s on <%s> tag. ' + 'For details, see https://fb.me/invalid-aria-prop%s', unknownPropString, type, getStackAddendum(debugID));
  } else if (invalidProps.length > 1) {
    warning$13(false, 'Invalid aria props %s on <%s> tag. ' + 'For details, see https://fb.me/invalid-aria-prop%s', unknownPropString, type, getStackAddendum(debugID));
  }
}

function validateProperties(type, props, debugID /* Stack only */) {
  if (type.indexOf('-') >= 0 || props.is) {
    return;
  }
  warnInvalidARIAProps(type, props, debugID);
}

var ReactDOMInvalidARIAHook$1 = {
  // Fiber
  validateProperties: validateProperties,
  // Stack
  onBeforeMountComponent: function (debugID, element) {
    if (__DEV__ && element != null && typeof element.type === 'string') {
      validateProperties(element.type, element.props, debugID);
    }
  },
  onBeforeUpdateComponent: function (debugID, element) {
    if (__DEV__ && element != null && typeof element.type === 'string') {
      validateProperties(element.type, element.props, debugID);
    }
  }
};

var ReactDOMInvalidARIAHook_1 = ReactDOMInvalidARIAHook$1;

var ReactComponentTreeHook$3 = ReactComponentTreeHook_1;
var ReactDebugCurrentFiber$2 = ReactDebugCurrentFiber_1;

var warning$14 = warning;

var didWarnValueNull = false;

function getStackAddendum$1(debugID) {
  if (debugID != null) {
    // This can only happen on Stack
    return ReactComponentTreeHook$3.getStackAddendumByID(debugID);
  } else {
    // This can only happen on Fiber
    return ReactDebugCurrentFiber$2.getCurrentFiberStackAddendum();
  }
}

function validateProperties$1(type, props, debugID /* Stack only */) {
  if (type !== 'input' && type !== 'textarea' && type !== 'select') {
    return;
  }
  if (props != null && props.value === null && !didWarnValueNull) {
    warning$14(false, '`value` prop on `%s` should not be null. ' + 'Consider using the empty string to clear the component or `undefined` ' + 'for uncontrolled components.%s', type, getStackAddendum$1(debugID));

    didWarnValueNull = true;
  }
}

var ReactDOMNullInputValuePropHook$1 = {
  // Fiber
  validateProperties: validateProperties$1,
  // Stack
  onBeforeMountComponent: function (debugID, element) {
    if (__DEV__ && element != null && typeof element.type === 'string') {
      validateProperties$1(element.type, element.props, debugID);
    }
  },
  onBeforeUpdateComponent: function (debugID, element) {
    if (__DEV__ && element != null && typeof element.type === 'string') {
      validateProperties$1(element.type, element.props, debugID);
    }
  }
};

var ReactDOMNullInputValuePropHook_1 = ReactDOMNullInputValuePropHook$1;

var DOMProperty$5 = DOMProperty_1;
var EventPluginRegistry$4 = EventPluginRegistry_1;
var ReactComponentTreeHook$4 = ReactComponentTreeHook_1;
var ReactDebugCurrentFiber$3 = ReactDebugCurrentFiber_1;

var warning$15 = warning;

function getStackAddendum$2(debugID) {
  if (debugID != null) {
    // This can only happen on Stack
    return ReactComponentTreeHook$4.getStackAddendumByID(debugID);
  } else {
    // This can only happen on Fiber
    return ReactDebugCurrentFiber$3.getCurrentFiberStackAddendum();
  }
}

if (__DEV__) {
  var reactProps = {
    children: true,
    dangerouslySetInnerHTML: true,
    key: true,
    ref: true,

    autoFocus: true,
    defaultValue: true,
    defaultChecked: true,
    innerHTML: true,
    suppressContentEditableWarning: true,
    onFocusIn: true,
    onFocusOut: true
  };
  var warnedProperties$1 = {};

  var validateProperty$1 = function (tagName, name, debugID) {
    if (DOMProperty$5.properties.hasOwnProperty(name) || DOMProperty$5.isCustomAttribute(name)) {
      return true;
    }
    if (reactProps.hasOwnProperty(name) && reactProps[name] || warnedProperties$1.hasOwnProperty(name) && warnedProperties$1[name]) {
      return true;
    }
    if (EventPluginRegistry$4.registrationNameModules.hasOwnProperty(name)) {
      return true;
    }
    warnedProperties$1[name] = true;
    var lowerCasedName = name.toLowerCase();

    // data-* attributes should be lowercase; suggest the lowercase version
    var standardName = DOMProperty$5.isCustomAttribute(lowerCasedName) ? lowerCasedName : DOMProperty$5.getPossibleStandardName.hasOwnProperty(lowerCasedName) ? DOMProperty$5.getPossibleStandardName[lowerCasedName] : null;

    var registrationName = EventPluginRegistry$4.possibleRegistrationNames.hasOwnProperty(lowerCasedName) ? EventPluginRegistry$4.possibleRegistrationNames[lowerCasedName] : null;

    if (standardName != null) {
      warning$15(false, 'Unknown DOM property %s. Did you mean %s?%s', name, standardName, getStackAddendum$2(debugID));
      return true;
    } else if (registrationName != null) {
      warning$15(false, 'Unknown event handler property %s. Did you mean `%s`?%s', name, registrationName, getStackAddendum$2(debugID));
      return true;
    } else {
      // We were unable to guess which prop the user intended.
      // It is likely that the user was just blindly spreading/forwarding props
      // Components should be careful to only render valid props/attributes.
      // Warning will be invoked in warnUnknownProperties to allow grouping.
      return false;
    }
  };
}

var warnUnknownProperties = function (type, props, debugID) {
  var unknownProps = [];
  for (var key in props) {
    var isValid = validateProperty$1(type, key, debugID);
    if (!isValid) {
      unknownProps.push(key);
    }
  }

  var unknownPropString = unknownProps.map(function (prop) {
    return '`' + prop + '`';
  }).join(', ');

  if (unknownProps.length === 1) {
    warning$15(false, 'Unknown prop %s on <%s> tag. Remove this prop from the element. ' + 'For details, see https://fb.me/react-unknown-prop%s', unknownPropString, type, getStackAddendum$2(debugID));
  } else if (unknownProps.length > 1) {
    warning$15(false, 'Unknown props %s on <%s> tag. Remove these props from the element. ' + 'For details, see https://fb.me/react-unknown-prop%s', unknownPropString, type, getStackAddendum$2(debugID));
  }
};

function validateProperties$2(type, props, debugID /* Stack only */) {
  if (type.indexOf('-') >= 0 || props.is) {
    return;
  }
  warnUnknownProperties(type, props, debugID);
}

var ReactDOMUnknownPropertyHook$1 = {
  // Fiber
  validateProperties: validateProperties$2,
  // Stack
  onBeforeMountComponent: function (debugID, element) {
    if (__DEV__ && element != null && typeof element.type === 'string') {
      validateProperties$2(element.type, element.props, debugID);
    }
  },
  onBeforeUpdateComponent: function (debugID, element) {
    if (__DEV__ && element != null && typeof element.type === 'string') {
      validateProperties$2(element.type, element.props, debugID);
    }
  }
};

var ReactDOMUnknownPropertyHook_1 = ReactDOMUnknownPropertyHook$1;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var CSSPropertyOperations = CSSPropertyOperations_1;
var DOMNamespaces = DOMNamespaces_1;
var DOMProperty$2 = DOMProperty_1;
var DOMPropertyOperations = DOMPropertyOperations_1;
var EventPluginRegistry$3 = EventPluginRegistry_1;
var ReactBrowserEventEmitter$2 = ReactBrowserEventEmitter_1;
var ReactDOMFiberInput = ReactDOMFiberInput$1;
var ReactDOMFiberOption = ReactDOMFiberOption$1;
var ReactDOMFiberSelect = ReactDOMFiberSelect$1;
var ReactDOMFiberTextarea = ReactDOMFiberTextarea$1;

var _require$2 = ReactDebugCurrentFiber_1;
var getCurrentFiberOwnerName = _require$2.getCurrentFiberOwnerName;

var emptyFunction$1 = emptyFunction;
var invariant$8 = invariant;
var isEventSupported$2 = isEventSupported_1;
var setInnerHTML = setInnerHTML_1;
var setTextContent = setTextContent_1;
var inputValueTracking = inputValueTracking_1;
var warning$2 = warning;

if (__DEV__) {
  var ReactDOMInvalidARIAHook = ReactDOMInvalidARIAHook_1;
  var ReactDOMNullInputValuePropHook = ReactDOMNullInputValuePropHook_1;
  var ReactDOMUnknownPropertyHook = ReactDOMUnknownPropertyHook_1;
  var validateARIAProperties = ReactDOMInvalidARIAHook.validateProperties;
  var validateInputPropertes = ReactDOMNullInputValuePropHook.validateProperties;
  var validateUnknownPropertes = ReactDOMUnknownPropertyHook.validateProperties;
}

var didWarnShadyDOM = false;

var listenTo = ReactBrowserEventEmitter$2.listenTo;
var registrationNameModules = EventPluginRegistry$3.registrationNameModules;

var DANGEROUSLY_SET_INNER_HTML = 'dangerouslySetInnerHTML';
var SUPPRESS_CONTENT_EDITABLE_WARNING = 'suppressContentEditableWarning';
var CHILDREN = 'children';
var STYLE = 'style';
var HTML = '__html';

var HTML_NAMESPACE = DOMNamespaces.html;
var SVG_NAMESPACE = DOMNamespaces.svg;
var MATH_NAMESPACE = DOMNamespaces.mathml;

// Node type for document fragments (Node.DOCUMENT_FRAGMENT_NODE).

var DOC_FRAGMENT_TYPE = 11;

function getDeclarationErrorAddendum() {
  var ownerName = getCurrentFiberOwnerName();
  if (ownerName) {
    // TODO: also report the stack.
    return '\n\nThis DOM node was rendered by `' + ownerName + '`.';
  }
  return '';
}

function assertValidProps(tag, props) {
  if (!props) {
    return;
  }
  // Note the use of `==` which checks for null or undefined.
  if (voidElementTags[tag]) {
    invariant$8(props.children == null && props.dangerouslySetInnerHTML == null, '%s is a void element tag and must neither have `children` nor ' + 'use `dangerouslySetInnerHTML`.%s', tag, getDeclarationErrorAddendum());
  }
  if (props.dangerouslySetInnerHTML != null) {
    invariant$8(props.children == null, 'Can only set one of `children` or `props.dangerouslySetInnerHTML`.');
    invariant$8(typeof props.dangerouslySetInnerHTML === 'object' && HTML in props.dangerouslySetInnerHTML, '`props.dangerouslySetInnerHTML` must be in the form `{__html: ...}`. ' + 'Please visit https://fb.me/react-invariant-dangerously-set-inner-html ' + 'for more information.');
  }
  if (__DEV__) {
    warning$2(props.innerHTML == null, 'Directly setting property `innerHTML` is not permitted. ' + 'For more information, lookup documentation on `dangerouslySetInnerHTML`.');
    warning$2(props.suppressContentEditableWarning || !props.contentEditable || props.children == null, 'A component is `contentEditable` and contains `children` managed by ' + 'React. It is now your responsibility to guarantee that none of ' + 'those nodes are unexpectedly modified or duplicated. This is ' + 'probably not intentional.');
    warning$2(props.onFocusIn == null && props.onFocusOut == null, 'React uses onFocus and onBlur instead of onFocusIn and onFocusOut. ' + 'All React events are normalized to bubble, so onFocusIn and onFocusOut ' + 'are not needed/supported by React.');
  }
  invariant$8(props.style == null || typeof props.style === 'object', 'The `style` prop expects a mapping from style properties to values, ' + 'not a string. For example, style={{marginRight: spacing + \'em\'}} when ' + 'using JSX.%s', getDeclarationErrorAddendum());
}

if (__DEV__) {
  var validatePropertiesInDevelopment = function (type, props) {
    validateARIAProperties(type, props);
    validateInputPropertes(type, props);
    validateUnknownPropertes(type, props);
  };
}

function ensureListeningTo(rootContainerElement, registrationName) {
  if (__DEV__) {
    // IE8 has no API for event capturing and the `onScroll` event doesn't
    // bubble.
    warning$2(registrationName !== 'onScroll' || isEventSupported$2('scroll', true), 'This browser doesn\'t support the `onScroll` event');
  }
  var isDocumentFragment = rootContainerElement.nodeType === DOC_FRAGMENT_TYPE;
  var doc = isDocumentFragment ? rootContainerElement : rootContainerElement.ownerDocument;
  listenTo(registrationName, doc);
}

// There are so many media events, it makes sense to just
// maintain a list rather than create a `trapBubbledEvent` for each
var mediaEvents = {
  topAbort: 'abort',
  topCanPlay: 'canplay',
  topCanPlayThrough: 'canplaythrough',
  topDurationChange: 'durationchange',
  topEmptied: 'emptied',
  topEncrypted: 'encrypted',
  topEnded: 'ended',
  topError: 'error',
  topLoadedData: 'loadeddata',
  topLoadedMetadata: 'loadedmetadata',
  topLoadStart: 'loadstart',
  topPause: 'pause',
  topPlay: 'play',
  topPlaying: 'playing',
  topProgress: 'progress',
  topRateChange: 'ratechange',
  topSeeked: 'seeked',
  topSeeking: 'seeking',
  topStalled: 'stalled',
  topSuspend: 'suspend',
  topTimeUpdate: 'timeupdate',
  topVolumeChange: 'volumechange',
  topWaiting: 'waiting'
};

function trapClickOnNonInteractiveElement(node) {
  // Mobile Safari does not fire properly bubble click events on
  // non-interactive elements, which means delegated click listeners do not
  // fire. The workaround for this bug involves attaching an empty click
  // listener on the target node.
  // http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html
  // Just set it using the onclick property so that we don't have to manage any
  // bookkeeping for it. Not sure if we need to clear it when the listener is
  // removed.
  // TODO: Only do this for the relevant Safaris maybe?
  node.onclick = emptyFunction$1;
}

function trapBubbledEventsLocal(node, tag) {
  // If a component renders to null or if another component fatals and causes
  // the state of the tree to be corrupted, `node` here can be null.

  // TODO: Make sure that we check isMounted before firing any of these events.
  // TODO: Inline these below since we're calling this from an equivalent
  // switch statement.
  switch (tag) {
    case 'iframe':
    case 'object':
      ReactBrowserEventEmitter$2.trapBubbledEvent('topLoad', 'load', node);
      break;
    case 'video':
    case 'audio':
      // Create listener for each media event
      for (var event in mediaEvents) {
        if (mediaEvents.hasOwnProperty(event)) {
          ReactBrowserEventEmitter$2.trapBubbledEvent(event, mediaEvents[event], node);
        }
      }
      break;
    case 'source':
      ReactBrowserEventEmitter$2.trapBubbledEvent('topError', 'error', node);
      break;
    case 'img':
    case 'image':
      ReactBrowserEventEmitter$2.trapBubbledEvent('topError', 'error', node);
      ReactBrowserEventEmitter$2.trapBubbledEvent('topLoad', 'load', node);
      break;
    case 'form':
      ReactBrowserEventEmitter$2.trapBubbledEvent('topReset', 'reset', node);
      ReactBrowserEventEmitter$2.trapBubbledEvent('topSubmit', 'submit', node);
      break;
    case 'input':
    case 'select':
    case 'textarea':
      ReactBrowserEventEmitter$2.trapBubbledEvent('topInvalid', 'invalid', node);
      break;
    case 'details':
      ReactBrowserEventEmitter$2.trapBubbledEvent('topToggle', 'toggle', node);
      break;
  }
}

// For HTML, certain tags should omit their close tag. We keep a whitelist for
// those special-case tags.

var omittedCloseTags = {
  'area': true,
  'base': true,
  'br': true,
  'col': true,
  'embed': true,
  'hr': true,
  'img': true,
  'input': true,
  'keygen': true,
  'link': true,
  'meta': true,
  'param': true,
  'source': true,
  'track': true,
  'wbr': true
};

// For HTML, certain tags cannot have children. This has the same purpose as
// `omittedCloseTags` except that `menuitem` should still have its closing tag.

var voidElementTags = _extends({
  'menuitem': true
}, omittedCloseTags);

function isCustomComponent(tagName, props) {
  return tagName.indexOf('-') >= 0 || props.is != null;
}

function setInitialDOMProperties(domElement, rootContainerElement, nextProps, isCustomComponentTag) {
  for (var propKey in nextProps) {
    var nextProp = nextProps[propKey];
    if (!nextProps.hasOwnProperty(propKey)) {
      continue;
    }
    if (propKey === STYLE) {
      if (__DEV__) {
        if (nextProp) {
          // Freeze the next style object so that we can assume it won't be
          // mutated. We have already warned for this in the past.
          Object.freeze(nextProp);
        }
      }
      // Relies on `updateStylesByID` not mutating `styleUpdates`.
      // TODO: call ReactInstrumentation.debugTool.onHostOperation in DEV.
      CSSPropertyOperations.setValueForStyles(domElement, nextProp);
    } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
      var nextHtml = nextProp ? nextProp[HTML] : undefined;
      if (nextHtml != null) {
        setInnerHTML(domElement, nextHtml);
      }
    } else if (propKey === CHILDREN) {
      if (typeof nextProp === 'string') {
        setTextContent(domElement, nextProp);
      } else if (typeof nextProp === 'number') {
        setTextContent(domElement, '' + nextProp);
      }
    } else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING) {
      // Noop
    } else if (registrationNameModules.hasOwnProperty(propKey)) {
      if (nextProp) {
        ensureListeningTo(rootContainerElement, propKey);
      }
    } else if (isCustomComponentTag) {
      DOMPropertyOperations.setValueForAttribute(domElement, propKey, nextProp);
    } else if (DOMProperty$2.properties[propKey] || DOMProperty$2.isCustomAttribute(propKey)) {
      // If we're updating to null or undefined, we should remove the property
      // from the DOM node instead of inadvertently setting to a string. This
      // brings us in line with the same behavior we have on initial render.
      if (nextProp != null) {
        DOMPropertyOperations.setValueForProperty(domElement, propKey, nextProp);
      }
    }
  }
}

function updateDOMProperties(domElement, updatePayload, wasCustomComponentTag, isCustomComponentTag) {
  // TODO: Handle wasCustomComponentTag
  for (var i = 0; i < updatePayload.length; i += 2) {
    var propKey = updatePayload[i];
    var propValue = updatePayload[i + 1];
    if (propKey === STYLE) {
      // TODO: call ReactInstrumentation.debugTool.onHostOperation in DEV.
      CSSPropertyOperations.setValueForStyles(domElement, propValue);
    } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
      setInnerHTML(domElement, propValue);
    } else if (propKey === CHILDREN) {
      setTextContent(domElement, propValue);
    } else if (isCustomComponentTag) {
      if (propValue != null) {
        DOMPropertyOperations.setValueForAttribute(domElement, propKey, propValue);
      } else {
        DOMPropertyOperations.deleteValueForAttribute(domElement, propKey);
      }
    } else if (DOMProperty$2.properties[propKey] || DOMProperty$2.isCustomAttribute(propKey)) {
      // If we're updating to null or undefined, we should remove the property
      // from the DOM node instead of inadvertently setting to a string. This
      // brings us in line with the same behavior we have on initial render.
      if (propValue != null) {
        DOMPropertyOperations.setValueForProperty(domElement, propKey, propValue);
      } else {
        DOMPropertyOperations.deleteValueForProperty(domElement, propKey);
      }
    }
  }
}

// Assumes there is no parent namespace.
function getIntrinsicNamespace(type) {
  switch (type) {
    case 'svg':
      return SVG_NAMESPACE;
    case 'math':
      return MATH_NAMESPACE;
    default:
      return HTML_NAMESPACE;
  }
}

var ReactDOMFiberComponent$1 = {
  getChildNamespace: function (parentNamespace, type) {
    if (parentNamespace == null || parentNamespace === HTML_NAMESPACE) {
      // No (or default) parent namespace: potential entry point.
      return getIntrinsicNamespace(type);
    }
    if (parentNamespace === SVG_NAMESPACE && type === 'foreignObject') {
      // We're leaving SVG.
      return HTML_NAMESPACE;
    }
    // By default, pass namespace below.
    return parentNamespace;
  },
  createElement: function (type, props, rootContainerElement, parentNamespace) {
    // We create tags in the namespace of their parent container, except HTML
    // tags get no namespace.
    var ownerDocument = rootContainerElement.ownerDocument;
    var domElement;
    var namespaceURI = parentNamespace;
    if (namespaceURI === HTML_NAMESPACE) {
      namespaceURI = getIntrinsicNamespace(type);
    }
    if (namespaceURI === HTML_NAMESPACE) {
      if (__DEV__) {
        warning$2(type === type.toLowerCase() || isCustomComponent(type, props), '<%s /> is using uppercase HTML. Always use lowercase HTML tags ' + 'in React.', type);
      }

      if (type === 'script') {
        // Create the script via .innerHTML so its "parser-inserted" flag is
        // set to true and it does not execute
        var div = ownerDocument.createElement('div');
        div.innerHTML = '<script><' + '/script>'; // eslint-disable-line
        // This is guaranteed to yield a script element.
        var firstChild = div.firstChild;
        domElement = div.removeChild(firstChild);
      } else if (props.is) {
        domElement = ownerDocument.createElement(type, props.is);
      } else {
        // Separate else branch instead of using `props.is || undefined` above because of a Firefox bug.
        // See discussion in https://github.com/facebook/react/pull/6896
        // and discussion in https://bugzilla.mozilla.org/show_bug.cgi?id=1276240
        domElement = ownerDocument.createElement(type);
      }
    } else {
      domElement = ownerDocument.createElementNS(namespaceURI, type);
    }

    return domElement;
  },
  setInitialProperties: function (domElement, tag, rawProps, rootContainerElement) {

    var isCustomComponentTag = isCustomComponent(tag, rawProps);
    if (__DEV__) {
      validatePropertiesInDevelopment(tag, rawProps);
      if (isCustomComponentTag && !didWarnShadyDOM && domElement.shadyRoot) {
        warning$2(false, '%s is using shady DOM. Using shady DOM with React can ' + 'cause things to break subtly.', getCurrentFiberOwnerName() || 'A component');
        didWarnShadyDOM = true;
      }
    }

    var props;
    switch (tag) {
      case 'audio':
      case 'form':
      case 'iframe':
      case 'img':
      case 'image':
      case 'link':
      case 'object':
      case 'source':
      case 'video':
      case 'details':
        trapBubbledEventsLocal(domElement, tag);
        props = rawProps;
        break;
      case 'input':
        ReactDOMFiberInput.mountWrapper(domElement, rawProps);
        props = ReactDOMFiberInput.getHostProps(domElement, rawProps);
        trapBubbledEventsLocal(domElement, tag);
        // For controlled components we always need to ensure we're listening
        // to onChange. Even if there is no listener.
        ensureListeningTo(rootContainerElement, 'onChange');
        break;
      case 'option':
        ReactDOMFiberOption.mountWrapper(domElement, rawProps);
        props = ReactDOMFiberOption.getHostProps(domElement, rawProps);
        break;
      case 'select':
        ReactDOMFiberSelect.mountWrapper(domElement, rawProps);
        props = ReactDOMFiberSelect.getHostProps(domElement, rawProps);
        trapBubbledEventsLocal(domElement, tag);
        // For controlled components we always need to ensure we're listening
        // to onChange. Even if there is no listener.
        ensureListeningTo(rootContainerElement, 'onChange');
        break;
      case 'textarea':
        ReactDOMFiberTextarea.mountWrapper(domElement, rawProps);
        props = ReactDOMFiberTextarea.getHostProps(domElement, rawProps);
        trapBubbledEventsLocal(domElement, tag);
        // For controlled components we always need to ensure we're listening
        // to onChange. Even if there is no listener.
        ensureListeningTo(rootContainerElement, 'onChange');
        break;
      default:
        props = rawProps;
    }

    assertValidProps(tag, props);

    setInitialDOMProperties(domElement, rootContainerElement, props, isCustomComponentTag);

    switch (tag) {
      case 'input':
        // TODO: Make sure we check if this is still unmounted or do any clean
        // up necessary since we never stop tracking anymore.
        inputValueTracking.trackNode(domElement);
        ReactDOMFiberInput.postMountWrapper(domElement, rawProps);
        break;
      case 'textarea':
        // TODO: Make sure we check if this is still unmounted or do any clean
        // up necessary since we never stop tracking anymore.
        inputValueTracking.trackNode(domElement);
        ReactDOMFiberTextarea.postMountWrapper(domElement, rawProps);
        break;
      case 'option':
        ReactDOMFiberOption.postMountWrapper(domElement, rawProps);
        break;
      default:
        if (typeof props.onClick === 'function') {
          // TODO: This cast may not be sound for SVG, MathML or custom elements.
          trapClickOnNonInteractiveElement(domElement);
        }
        break;
    }
  },


  // Calculate the diff between the two objects.
  diffProperties: function (domElement, tag, lastRawProps, nextRawProps, rootContainerElement) {
    if (__DEV__) {
      validatePropertiesInDevelopment(tag, nextRawProps);
    }

    var updatePayload = null;

    var lastProps;
    var nextProps;
    switch (tag) {
      case 'input':
        lastProps = ReactDOMFiberInput.getHostProps(domElement, lastRawProps);
        nextProps = ReactDOMFiberInput.getHostProps(domElement, nextRawProps);
        updatePayload = [];
        break;
      case 'option':
        lastProps = ReactDOMFiberOption.getHostProps(domElement, lastRawProps);
        nextProps = ReactDOMFiberOption.getHostProps(domElement, nextRawProps);
        updatePayload = [];
        break;
      case 'select':
        lastProps = ReactDOMFiberSelect.getHostProps(domElement, lastRawProps);
        nextProps = ReactDOMFiberSelect.getHostProps(domElement, nextRawProps);
        updatePayload = [];
        break;
      case 'textarea':
        lastProps = ReactDOMFiberTextarea.getHostProps(domElement, lastRawProps);
        nextProps = ReactDOMFiberTextarea.getHostProps(domElement, nextRawProps);
        updatePayload = [];
        break;
      default:
        lastProps = lastRawProps;
        nextProps = nextRawProps;
        if (typeof lastProps.onClick !== 'function' && typeof nextProps.onClick === 'function') {
          // TODO: This cast may not be sound for SVG, MathML or custom elements.
          trapClickOnNonInteractiveElement(domElement);
        }
        break;
    }

    assertValidProps(tag, nextProps);

    var propKey;
    var styleName;
    var styleUpdates = null;
    for (propKey in lastProps) {
      if (nextProps.hasOwnProperty(propKey) || !lastProps.hasOwnProperty(propKey) || lastProps[propKey] == null) {
        continue;
      }
      if (propKey === STYLE) {
        var lastStyle = lastProps[propKey];
        for (styleName in lastStyle) {
          if (lastStyle.hasOwnProperty(styleName)) {
            if (!styleUpdates) {
              styleUpdates = {};
            }
            styleUpdates[styleName] = '';
          }
        }
      } else if (propKey === DANGEROUSLY_SET_INNER_HTML || propKey === CHILDREN) {
        // Noop. This is handled by the clear text mechanism.
      } else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING) {
        // Noop
      } else if (registrationNameModules.hasOwnProperty(propKey)) {
        // This is a special case. If any listener updates we need to ensure
        // that the "current" fiber pointer gets updated so we need a commit
        // to update this element.
        if (!updatePayload) {
          updatePayload = [];
        }
      } else {
        // For all other deleted properties we add it to the queue. We use
        // the whitelist in the commit phase instead.
        (updatePayload = updatePayload || []).push(propKey, null);
      }
    }
    for (propKey in nextProps) {
      var nextProp = nextProps[propKey];
      var lastProp = lastProps != null ? lastProps[propKey] : undefined;
      if (!nextProps.hasOwnProperty(propKey) || nextProp === lastProp || nextProp == null && lastProp == null) {
        continue;
      }
      if (propKey === STYLE) {
        if (__DEV__) {
          if (nextProp) {
            // Freeze the next style object so that we can assume it won't be
            // mutated. We have already warned for this in the past.
            Object.freeze(nextProp);
          }
        }
        if (lastProp) {
          // Unset styles on `lastProp` but not on `nextProp`.
          for (styleName in lastProp) {
            if (lastProp.hasOwnProperty(styleName) && (!nextProp || !nextProp.hasOwnProperty(styleName))) {
              if (!styleUpdates) {
                styleUpdates = {};
              }
              styleUpdates[styleName] = '';
            }
          }
          // Update styles that changed since `lastProp`.
          for (styleName in nextProp) {
            if (nextProp.hasOwnProperty(styleName) && lastProp[styleName] !== nextProp[styleName]) {
              if (!styleUpdates) {
                styleUpdates = {};
              }
              styleUpdates[styleName] = nextProp[styleName];
            }
          }
        } else {
          // Relies on `updateStylesByID` not mutating `styleUpdates`.
          if (!styleUpdates) {
            if (!updatePayload) {
              updatePayload = [];
            }
            updatePayload.push(propKey, styleUpdates);
          }
          styleUpdates = nextProp;
        }
      } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
        var nextHtml = nextProp ? nextProp[HTML] : undefined;
        var lastHtml = lastProp ? lastProp[HTML] : undefined;
        if (nextHtml != null) {
          if (lastHtml !== nextHtml) {
            (updatePayload = updatePayload || []).push(propKey, '' + nextHtml);
          }
        } else {
          // TODO: It might be too late to clear this if we have children
          // inserted already.
        }
      } else if (propKey === CHILDREN) {
        if (lastProp !== nextProp && (typeof nextProp === 'string' || typeof nextProp === 'number')) {
          (updatePayload = updatePayload || []).push(propKey, '' + nextProp);
        }
      } else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING) {
        // Noop
      } else if (registrationNameModules.hasOwnProperty(propKey)) {
        if (nextProp) {
          // We eagerly listen to this even though we haven't committed yet.
          ensureListeningTo(rootContainerElement, propKey);
        }
        if (!updatePayload && lastProp !== nextProp) {
          // This is a special case. If any listener updates we need to ensure
          // that the "current" props pointer gets updated so we need a commit
          // to update this element.
          updatePayload = [];
        }
      } else {
        // For any other property we always add it to the queue and then we
        // filter it out using the whitelist during the commit.
        (updatePayload = updatePayload || []).push(propKey, nextProp);
      }
    }
    if (styleUpdates) {
      (updatePayload = updatePayload || []).push(STYLE, styleUpdates);
    }
    return updatePayload;
  },


  // Apply the diff.
  updateProperties: function (domElement, updatePayload, tag, lastRawProps, nextRawProps) {
    var wasCustomComponentTag = isCustomComponent(tag, lastRawProps);
    var isCustomComponentTag = isCustomComponent(tag, nextRawProps);
    // Apply the diff.
    updateDOMProperties(domElement, updatePayload, wasCustomComponentTag, isCustomComponentTag);

    // TODO: Ensure that an update gets scheduled if any of the special props
    // changed.
    switch (tag) {
      case 'input':
        // Update the wrapper around inputs *after* updating props. This has to
        // happen after `updateDOMProperties`. Otherwise HTML5 input validations
        // raise warnings and prevent the new value from being assigned.
        ReactDOMFiberInput.updateWrapper(domElement, nextRawProps);
        break;
      case 'textarea':
        ReactDOMFiberTextarea.updateWrapper(domElement, nextRawProps);
        break;
      case 'select':
        // <select> value update needs to occur after <option> children
        // reconciliation
        ReactDOMFiberSelect.postUpdateWrapper(domElement, nextRawProps);
        break;
    }
  },
  restoreControlledState: function (domElement, tag, props) {
    switch (tag) {
      case 'input':
        ReactDOMFiberInput.restoreControlledState(domElement, props);
        return;
      case 'textarea':
        ReactDOMFiberTextarea.restoreControlledState(domElement, props);
        return;
      case 'select':
        ReactDOMFiberSelect.restoreControlledState(domElement, props);
        return;
    }
  }
};

var ReactDOMFiberComponent_1 = ReactDOMFiberComponent$1;

// This a built-in polyfill for requestIdleCallback. It works by scheduling
// a requestAnimationFrame, store the time for the start of the frame, then
// schedule a postMessage which gets scheduled after paint. Within the
// postMessage handler do as much work as possible until time + frame rate.
// By separating the idle call into a separate event tick we ensure that
// layout, paint and other browser work is counted against the available time.
// The frame rate is dynamically adjusted.

var invariant$12 = invariant;

// TODO: There's no way to cancel these, because Fiber doesn't atm.
var rAF = void 0;
var rIC = void 0;
if (typeof requestAnimationFrame !== 'function') {
  invariant$12(false, 'React depends on requestAnimationFrame. Make sure that you load a ' + 'polyfill in older browsers.');
} else if (typeof requestIdleCallback !== 'function') {
  // Wrap requestAnimationFrame and polyfill requestIdleCallback.

  var scheduledRAFCallback = null;
  var scheduledRICCallback = null;

  var isIdleScheduled = false;
  var isAnimationFrameScheduled = false;

  var frameDeadline = 0;
  // We start out assuming that we run at 30fps but then the heuristic tracking
  // will adjust this value to a faster fps if we get more frequent animation
  // frames.
  var previousFrameTime = 33;
  var activeFrameTime = 33;

  var frameDeadlineObject = {
    timeRemaining: typeof performance === 'object' && typeof performance.now === 'function' ? function () {
      // We assume that if we have a performance timer that the rAF callback
      // gets a performance timer value. Not sure if this is always true.
      return frameDeadline - performance.now();
    } : function () {
      // As a fallback we use Date.now.
      return frameDeadline - Date.now();
    }
  };

  // We use the postMessage trick to defer idle work until after the repaint.
  var messageKey = '__reactIdleCallback$' + Math.random().toString(36).slice(2);
  var idleTick = function (event) {
    if (event.source !== window || event.data !== messageKey) {
      return;
    }
    isIdleScheduled = false;
    var callback = scheduledRICCallback;
    scheduledRICCallback = null;
    if (callback) {
      callback(frameDeadlineObject);
    }
  };
  // Assumes that we have addEventListener in this environment. Might need
  // something better for old IE.
  window.addEventListener('message', idleTick, false);

  var animationTick = function (rafTime) {
    isAnimationFrameScheduled = false;
    var nextFrameTime = rafTime - frameDeadline + activeFrameTime;
    if (nextFrameTime < activeFrameTime && previousFrameTime < activeFrameTime) {
      if (nextFrameTime < 8) {
        // Defensive coding. We don't support higher frame rates than 120hz.
        // If we get lower than that, it is probably a bug.
        nextFrameTime = 8;
      }
      // If one frame goes long, then the next one can be short to catch up.
      // If two frames are short in a row, then that's an indication that we
      // actually have a higher frame rate than what we're currently optimizing.
      // We adjust our heuristic dynamically accordingly. For example, if we're
      // running on 120hz display or 90hz VR display.
      // Take the max of the two in case one of them was an anomaly due to
      // missed frame deadlines.
      activeFrameTime = nextFrameTime < previousFrameTime ? previousFrameTime : nextFrameTime;
    } else {
      previousFrameTime = nextFrameTime;
    }
    frameDeadline = rafTime + activeFrameTime;
    if (!isIdleScheduled) {
      isIdleScheduled = true;
      window.postMessage(messageKey, '*');
    }
    var callback = scheduledRAFCallback;
    scheduledRAFCallback = null;
    if (callback) {
      callback(rafTime);
    }
  };

  rAF = function (callback) {
    // This assumes that we only schedule one callback at a time because that's
    // how Fiber uses it.
    scheduledRAFCallback = callback;
    if (!isAnimationFrameScheduled) {
      // If rIC didn't already schedule one, we need to schedule a frame.
      isAnimationFrameScheduled = true;
      requestAnimationFrame(animationTick);
    }
    return 0;
  };

  rIC = function (callback) {
    // This assumes that we only schedule one callback at a time because that's
    // how Fiber uses it.
    scheduledRICCallback = callback;
    if (!isAnimationFrameScheduled) {
      // If rAF didn't already schedule one, we need to schedule a frame.
      // TODO: If this rAF doesn't materialize because the browser throttles, we
      // might want to still have setTimeout trigger rIC as a backup to ensure
      // that we keep performing work.
      isAnimationFrameScheduled = true;
      requestAnimationFrame(animationTick);
    }
    return 0;
  };
} else {
  rAF = requestAnimationFrame;
  rIC = requestIdleCallback;
}

var rAF_1 = rAF;
var rIC_1 = rIC;

var ReactDOMFrameScheduling$1 = {
	rAF: rAF_1,
	rIC: rIC_1
};

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ARIADOMPropertyConfig
 */

var ARIADOMPropertyConfig$1 = {
  Properties: {
    // Global States and Properties
    'aria-current': 0, // state
    'aria-details': 0,
    'aria-disabled': 0, // state
    'aria-hidden': 0, // state
    'aria-invalid': 0, // state
    'aria-keyshortcuts': 0,
    'aria-label': 0,
    'aria-roledescription': 0,
    // Widget Attributes
    'aria-autocomplete': 0,
    'aria-checked': 0,
    'aria-expanded': 0,
    'aria-haspopup': 0,
    'aria-level': 0,
    'aria-modal': 0,
    'aria-multiline': 0,
    'aria-multiselectable': 0,
    'aria-orientation': 0,
    'aria-placeholder': 0,
    'aria-pressed': 0,
    'aria-readonly': 0,
    'aria-required': 0,
    'aria-selected': 0,
    'aria-sort': 0,
    'aria-valuemax': 0,
    'aria-valuemin': 0,
    'aria-valuenow': 0,
    'aria-valuetext': 0,
    // Live Region Attributes
    'aria-atomic': 0,
    'aria-busy': 0,
    'aria-live': 0,
    'aria-relevant': 0,
    // Drag-and-Drop Attributes
    'aria-dropeffect': 0,
    'aria-grabbed': 0,
    // Relationship Attributes
    'aria-activedescendant': 0,
    'aria-colcount': 0,
    'aria-colindex': 0,
    'aria-colspan': 0,
    'aria-controls': 0,
    'aria-describedby': 0,
    'aria-errormessage': 0,
    'aria-flowto': 0,
    'aria-labelledby': 0,
    'aria-owns': 0,
    'aria-posinset': 0,
    'aria-rowcount': 0,
    'aria-rowindex': 0,
    'aria-rowspan': 0,
    'aria-setsize': 0
  },
  DOMAttributeNames: {},
  DOMPropertyNames: {}
};

var ARIADOMPropertyConfig_1 = ARIADOMPropertyConfig$1;

var _require$8 = ReactTypeOfWork;
var HostComponent$2 = _require$8.HostComponent;

function getParent(inst) {
  if (inst._hostParent !== undefined) {
    return inst._hostParent;
  }
  if (typeof inst.tag === 'number') {
    do {
      inst = inst['return'];
      // TODO: If this is a HostRoot we might want to bail out.
      // That is depending on if we want nested subtrees (layers) to bubble
      // events to their parent. We could also go through parentNode on the
      // host node but that wouldn't work for React Native and doesn't let us
      // do the portal feature.
    } while (inst && inst.tag !== HostComponent$2);
    if (inst) {
      return inst;
    }
  }
  return null;
}

/**
 * Return the lowest common ancestor of A and B, or null if they are in
 * different trees.
 */
function getLowestCommonAncestor(instA, instB) {
  var depthA = 0;
  for (var tempA = instA; tempA; tempA = getParent(tempA)) {
    depthA++;
  }
  var depthB = 0;
  for (var tempB = instB; tempB; tempB = getParent(tempB)) {
    depthB++;
  }

  // If A is deeper, crawl up.
  while (depthA - depthB > 0) {
    instA = getParent(instA);
    depthA--;
  }

  // If B is deeper, crawl up.
  while (depthB - depthA > 0) {
    instB = getParent(instB);
    depthB--;
  }

  // Walk in lockstep until we find a match.
  var depth = depthA;
  while (depth--) {
    if (instA === instB || instA === instB.alternate) {
      return instA;
    }
    instA = getParent(instA);
    instB = getParent(instB);
  }
  return null;
}

/**
 * Return if A is an ancestor of B.
 */
function isAncestor(instA, instB) {
  while (instB) {
    if (instA === instB || instA === instB.alternate) {
      return true;
    }
    instB = getParent(instB);
  }
  return false;
}

/**
 * Return the parent instance of the passed-in instance.
 */
function getParentInstance(inst) {
  return getParent(inst);
}

/**
 * Simulates the traversal of a two-phase, capture/bubble event dispatch.
 */
function traverseTwoPhase(inst, fn, arg) {
  var path = [];
  while (inst) {
    path.push(inst);
    inst = getParent(inst);
  }
  var i;
  for (i = path.length; i-- > 0;) {
    fn(path[i], 'captured', arg);
  }
  for (i = 0; i < path.length; i++) {
    fn(path[i], 'bubbled', arg);
  }
}

/**
 * Traverses the ID hierarchy and invokes the supplied `cb` on any IDs that
 * should would receive a `mouseEnter` or `mouseLeave` event.
 *
 * Does not invoke the callback on the nearest common ancestor because nothing
 * "entered" or "left" that element.
 */
function traverseEnterLeave(from, to, fn, argFrom, argTo) {
  var common = from && to ? getLowestCommonAncestor(from, to) : null;
  var pathFrom = [];
  while (from && from !== common) {
    pathFrom.push(from);
    from = getParent(from);
  }
  var pathTo = [];
  while (to && to !== common) {
    pathTo.push(to);
    to = getParent(to);
  }
  var i;
  for (i = 0; i < pathFrom.length; i++) {
    fn(pathFrom[i], 'bubbled', argFrom);
  }
  for (i = pathTo.length; i-- > 0;) {
    fn(pathTo[i], 'captured', argTo);
  }
}

var ReactTreeTraversal$1 = {
  isAncestor: isAncestor,
  getLowestCommonAncestor: getLowestCommonAncestor,
  getParentInstance: getParentInstance,
  traverseTwoPhase: traverseTwoPhase,
  traverseEnterLeave: traverseEnterLeave
};

var EventPluginHub$3 = EventPluginHub_1;
var ReactTreeTraversal = ReactTreeTraversal$1;

var accumulateInto$2 = accumulateInto_1;
var forEachAccumulated$2 = forEachAccumulated_1;
var warning$16 = warning;

var getListener = EventPluginHub$3.getListener;

/**
 * Some event types have a notion of different registration names for different
 * "phases" of propagation. This finds listeners by a given phase.
 */
function listenerAtPhase(inst, event, propagationPhase) {
  var registrationName = event.dispatchConfig.phasedRegistrationNames[propagationPhase];
  return getListener(inst, registrationName);
}

/**
 * Tags a `SyntheticEvent` with dispatched listeners. Creating this function
 * here, allows us to not have to bind or create functions for each event.
 * Mutating the event's members allows us to not have to create a wrapping
 * "dispatch" object that pairs the event with the listener.
 */
function accumulateDirectionalDispatches(inst, phase, event) {
  if (__DEV__) {
    warning$16(inst, 'Dispatching inst must not be null');
  }
  var listener = listenerAtPhase(inst, event, phase);
  if (listener) {
    event._dispatchListeners = accumulateInto$2(event._dispatchListeners, listener);
    event._dispatchInstances = accumulateInto$2(event._dispatchInstances, inst);
  }
}

/**
 * Collect dispatches (must be entirely collected before dispatching - see unit
 * tests). Lazily allocate the array to conserve memory.  We must loop through
 * each event and perform the traversal for each one. We cannot perform a
 * single traversal for the entire collection of events because each event may
 * have a different target.
 */
function accumulateTwoPhaseDispatchesSingle(event) {
  if (event && event.dispatchConfig.phasedRegistrationNames) {
    ReactTreeTraversal.traverseTwoPhase(event._targetInst, accumulateDirectionalDispatches, event);
  }
}

/**
 * Same as `accumulateTwoPhaseDispatchesSingle`, but skips over the targetID.
 */
function accumulateTwoPhaseDispatchesSingleSkipTarget(event) {
  if (event && event.dispatchConfig.phasedRegistrationNames) {
    var targetInst = event._targetInst;
    var parentInst = targetInst ? ReactTreeTraversal.getParentInstance(targetInst) : null;
    ReactTreeTraversal.traverseTwoPhase(parentInst, accumulateDirectionalDispatches, event);
  }
}

/**
 * Accumulates without regard to direction, does not look for phased
 * registration names. Same as `accumulateDirectDispatchesSingle` but without
 * requiring that the `dispatchMarker` be the same as the dispatched ID.
 */
function accumulateDispatches(inst, ignoredDirection, event) {
  if (event && event.dispatchConfig.registrationName) {
    var registrationName = event.dispatchConfig.registrationName;
    var listener = getListener(inst, registrationName);
    if (listener) {
      event._dispatchListeners = accumulateInto$2(event._dispatchListeners, listener);
      event._dispatchInstances = accumulateInto$2(event._dispatchInstances, inst);
    }
  }
}

/**
 * Accumulates dispatches on an `SyntheticEvent`, but only for the
 * `dispatchMarker`.
 * @param {SyntheticEvent} event
 */
function accumulateDirectDispatchesSingle(event) {
  if (event && event.dispatchConfig.registrationName) {
    accumulateDispatches(event._targetInst, null, event);
  }
}

function accumulateTwoPhaseDispatches(events) {
  forEachAccumulated$2(events, accumulateTwoPhaseDispatchesSingle);
}

function accumulateTwoPhaseDispatchesSkipTarget(events) {
  forEachAccumulated$2(events, accumulateTwoPhaseDispatchesSingleSkipTarget);
}

function accumulateEnterLeaveDispatches(leave, enter, from, to) {
  ReactTreeTraversal.traverseEnterLeave(from, to, accumulateDispatches, leave, enter);
}

function accumulateDirectDispatches(events) {
  forEachAccumulated$2(events, accumulateDirectDispatchesSingle);
}

/**
 * A small set of propagation patterns, each of which will accept a small amount
 * of information, and generate a set of "dispatch ready event objects" - which
 * are sets of events that have already been annotated with a set of dispatched
 * listener functions/ids. The API is designed this way to discourage these
 * propagation strategies from actually executing the dispatches, since we
 * always want to collect the entire set of dispatches before executing even a
 * single one.
 *
 * @constructor EventPropagators
 */
var EventPropagators$1 = {
  accumulateTwoPhaseDispatches: accumulateTwoPhaseDispatches,
  accumulateTwoPhaseDispatchesSkipTarget: accumulateTwoPhaseDispatchesSkipTarget,
  accumulateDirectDispatches: accumulateDirectDispatches,
  accumulateEnterLeaveDispatches: accumulateEnterLeaveDispatches
};

var EventPropagators_1 = EventPropagators$1;

var invariant$13 = invariant;

/**
 * Static poolers. Several custom versions for each potential number of
 * arguments. A completely generic pooler is easy to implement, but would
 * require accessing the `arguments` object. In each of these, `this` refers to
 * the Class itself, not an instance. If any others are needed, simply add them
 * here, or in their own files.
 */
var oneArgumentPooler = function (copyFieldsFrom) {
  var Klass = this;
  if (Klass.instancePool.length) {
    var instance = Klass.instancePool.pop();
    Klass.call(instance, copyFieldsFrom);
    return instance;
  } else {
    return new Klass(copyFieldsFrom);
  }
};

var twoArgumentPooler = function (a1, a2) {
  var Klass = this;
  if (Klass.instancePool.length) {
    var instance = Klass.instancePool.pop();
    Klass.call(instance, a1, a2);
    return instance;
  } else {
    return new Klass(a1, a2);
  }
};

var threeArgumentPooler = function (a1, a2, a3) {
  var Klass = this;
  if (Klass.instancePool.length) {
    var instance = Klass.instancePool.pop();
    Klass.call(instance, a1, a2, a3);
    return instance;
  } else {
    return new Klass(a1, a2, a3);
  }
};

var fourArgumentPooler = function (a1, a2, a3, a4) {
  var Klass = this;
  if (Klass.instancePool.length) {
    var instance = Klass.instancePool.pop();
    Klass.call(instance, a1, a2, a3, a4);
    return instance;
  } else {
    return new Klass(a1, a2, a3, a4);
  }
};

var standardReleaser = function (instance) {
  var Klass = this;
  invariant$13(instance instanceof Klass, 'Trying to release an instance into a pool of a different type.');
  instance.destructor();
  if (Klass.instancePool.length < Klass.poolSize) {
    Klass.instancePool.push(instance);
  }
};

var DEFAULT_POOL_SIZE = 10;
var DEFAULT_POOLER = oneArgumentPooler;

/**
 * Augments `CopyConstructor` to be a poolable class, augmenting only the class
 * itself (statically) not adding any prototypical fields. Any CopyConstructor
 * you give this may have a `poolSize` property, and will look for a
 * prototypical `destructor` on instances.
 *
 * @param {Function} CopyConstructor Constructor that can be used to reset.
 * @param {Function} pooler Customizable pooler.
 */
var addPoolingTo = function (CopyConstructor, pooler) {
  // Casting as any so that flow ignores the actual implementation and trusts
  // it to match the type we declared
  var NewKlass = CopyConstructor;
  NewKlass.instancePool = [];
  NewKlass.getPooled = pooler || DEFAULT_POOLER;
  if (!NewKlass.poolSize) {
    NewKlass.poolSize = DEFAULT_POOL_SIZE;
  }
  NewKlass.release = standardReleaser;
  return NewKlass;
};

var PooledClass$1 = {
  addPoolingTo: addPoolingTo,
  oneArgumentPooler: oneArgumentPooler,
  twoArgumentPooler: twoArgumentPooler,
  threeArgumentPooler: threeArgumentPooler,
  fourArgumentPooler: fourArgumentPooler
};

var PooledClass_1 = PooledClass$1;

var ExecutionEnvironment$7 = ExecutionEnvironment;

var contentKey = null;

/**
 * Gets the key used to access text content on a DOM node.
 *
 * @return {?string} Key used to access text content.
 * @internal
 */
function getTextContentAccessor$1() {
  if (!contentKey && ExecutionEnvironment$7.canUseDOM) {
    // Prefer textContent to innerText because many browsers support both but
    // SVG <text> elements don't support innerText even when <div> does.
    contentKey = 'textContent' in document.documentElement ? 'textContent' : 'innerText';
  }
  return contentKey;
}

var getTextContentAccessor_1 = getTextContentAccessor$1;

var PooledClass = PooledClass_1;

var getTextContentAccessor = getTextContentAccessor_1;

/**
 * This helper class stores information about text content of a target node,
 * allowing comparison of content before and after a given event.
 *
 * Identify the node where selection currently begins, then observe
 * both its text content and its current position in the DOM. Since the
 * browser may natively replace the target node during composition, we can
 * use its position to find its replacement.
 *
 * @param {DOMEventTarget} root
 */
function FallbackCompositionState$1(root) {
  this._root = root;
  this._startText = this.getText();
  this._fallbackText = null;
}

Object.assign(FallbackCompositionState$1.prototype, {
  destructor: function () {
    this._root = null;
    this._startText = null;
    this._fallbackText = null;
  },

  /**
   * Get current text of input.
   *
   * @return {string}
   */
  getText: function () {
    if ('value' in this._root) {
      return this._root.value;
    }
    return this._root[getTextContentAccessor()];
  },

  /**
   * Determine the differing substring between the initially stored
   * text content and the current content.
   *
   * @return {string}
   */
  getData: function () {
    if (this._fallbackText) {
      return this._fallbackText;
    }

    var start;
    var startValue = this._startText;
    var startLength = startValue.length;
    var end;
    var endValue = this.getText();
    var endLength = endValue.length;

    for (start = 0; start < startLength; start++) {
      if (startValue[start] !== endValue[start]) {
        break;
      }
    }

    var minEnd = startLength - start;
    for (end = 1; end <= minEnd; end++) {
      if (startValue[startLength - end] !== endValue[endLength - end]) {
        break;
      }
    }

    var sliceTail = end > 1 ? 1 - end : undefined;
    this._fallbackText = endValue.slice(start, sliceTail);
    return this._fallbackText;
  }
});

PooledClass.addPoolingTo(FallbackCompositionState$1);

var FallbackCompositionState_1 = FallbackCompositionState$1;

var PooledClass$2 = PooledClass_1;

var emptyFunction$2 = emptyFunction;
var warning$17 = warning;

var didWarnForAddedNewProperty = false;
var isProxySupported = typeof Proxy === 'function';

var shouldBeReleasedProperties = ['dispatchConfig', '_targetInst', 'nativeEvent', 'isDefaultPrevented', 'isPropagationStopped', '_dispatchListeners', '_dispatchInstances'];

/**
 * @interface Event
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var EventInterface = {
  type: null,
  target: null,
  // currentTarget is set when dispatching; no use in copying it here
  currentTarget: emptyFunction$2.thatReturnsNull,
  eventPhase: null,
  bubbles: null,
  cancelable: null,
  timeStamp: function (event) {
    return event.timeStamp || Date.now();
  },
  defaultPrevented: null,
  isTrusted: null
};

/**
 * Synthetic events are dispatched by event plugins, typically in response to a
 * top-level event delegation handler.
 *
 * These systems should generally use pooling to reduce the frequency of garbage
 * collection. The system should check `isPersistent` to determine whether the
 * event should be released into the pool after being dispatched. Users that
 * need a persisted event should invoke `persist`.
 *
 * Synthetic events (and subclasses) implement the DOM Level 3 Events API by
 * normalizing browser quirks. Subclasses do not necessarily have to implement a
 * DOM interface; custom application-specific events can also subclass this.
 *
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {*} targetInst Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @param {DOMEventTarget} nativeEventTarget Target node.
 */
function SyntheticEvent$1(dispatchConfig, targetInst, nativeEvent, nativeEventTarget) {
  if (__DEV__) {
    // these have a getter/setter for warnings
    delete this.nativeEvent;
    delete this.preventDefault;
    delete this.stopPropagation;
  }

  this.dispatchConfig = dispatchConfig;
  this._targetInst = targetInst;
  this.nativeEvent = nativeEvent;

  var Interface = this.constructor.Interface;
  for (var propName in Interface) {
    if (!Interface.hasOwnProperty(propName)) {
      continue;
    }
    if (__DEV__) {
      delete this[propName]; // this has a getter/setter for warnings
    }
    var normalize = Interface[propName];
    if (normalize) {
      this[propName] = normalize(nativeEvent);
    } else {
      if (propName === 'target') {
        this.target = nativeEventTarget;
      } else {
        this[propName] = nativeEvent[propName];
      }
    }
  }

  var defaultPrevented = nativeEvent.defaultPrevented != null ? nativeEvent.defaultPrevented : nativeEvent.returnValue === false;
  if (defaultPrevented) {
    this.isDefaultPrevented = emptyFunction$2.thatReturnsTrue;
  } else {
    this.isDefaultPrevented = emptyFunction$2.thatReturnsFalse;
  }
  this.isPropagationStopped = emptyFunction$2.thatReturnsFalse;
  return this;
}

Object.assign(SyntheticEvent$1.prototype, {

  preventDefault: function () {
    this.defaultPrevented = true;
    var event = this.nativeEvent;
    if (!event) {
      return;
    }

    if (event.preventDefault) {
      event.preventDefault();
    } else if (typeof event.returnValue !== 'unknown') {
      // eslint-disable-line valid-typeof
      event.returnValue = false;
    }
    this.isDefaultPrevented = emptyFunction$2.thatReturnsTrue;
  },

  stopPropagation: function () {
    var event = this.nativeEvent;
    if (!event) {
      return;
    }

    if (event.stopPropagation) {
      event.stopPropagation();
    } else if (typeof event.cancelBubble !== 'unknown') {
      // eslint-disable-line valid-typeof
      // The ChangeEventPlugin registers a "propertychange" event for
      // IE. This event does not support bubbling or cancelling, and
      // any references to cancelBubble throw "Member not found".  A
      // typeof check of "unknown" circumvents this issue (and is also
      // IE specific).
      event.cancelBubble = true;
    }

    this.isPropagationStopped = emptyFunction$2.thatReturnsTrue;
  },

  /**
   * We release all dispatched `SyntheticEvent`s after each event loop, adding
   * them back into the pool. This allows a way to hold onto a reference that
   * won't be added back into the pool.
   */
  persist: function () {
    this.isPersistent = emptyFunction$2.thatReturnsTrue;
  },

  /**
   * Checks if this event should be released back into the pool.
   *
   * @return {boolean} True if this should not be released, false otherwise.
   */
  isPersistent: emptyFunction$2.thatReturnsFalse,

  /**
   * `PooledClass` looks for `destructor` on each instance it releases.
   */
  destructor: function () {
    var Interface = this.constructor.Interface;
    for (var propName in Interface) {
      if (__DEV__) {
        Object.defineProperty(this, propName, getPooledWarningPropertyDefinition(propName, Interface[propName]));
      } else {
        this[propName] = null;
      }
    }
    for (var i = 0; i < shouldBeReleasedProperties.length; i++) {
      this[shouldBeReleasedProperties[i]] = null;
    }
    if (__DEV__) {
      Object.defineProperty(this, 'nativeEvent', getPooledWarningPropertyDefinition('nativeEvent', null));
      Object.defineProperty(this, 'preventDefault', getPooledWarningPropertyDefinition('preventDefault', emptyFunction$2));
      Object.defineProperty(this, 'stopPropagation', getPooledWarningPropertyDefinition('stopPropagation', emptyFunction$2));
    }
  }

});

SyntheticEvent$1.Interface = EventInterface;

if (__DEV__) {
  if (isProxySupported) {
    /*eslint-disable no-func-assign */
    SyntheticEvent$1 = new Proxy(SyntheticEvent$1, {
      construct: function (target, args) {
        return this.apply(target, Object.create(target.prototype), args);
      },
      apply: function (constructor, that, args) {
        return new Proxy(constructor.apply(that, args), {
          set: function (target, prop, value) {
            if (prop !== 'isPersistent' && !target.constructor.Interface.hasOwnProperty(prop) && shouldBeReleasedProperties.indexOf(prop) === -1) {
              warning$17(didWarnForAddedNewProperty || target.isPersistent(), 'This synthetic event is reused for performance reasons. If you\'re ' + 'seeing this, you\'re adding a new property in the synthetic event object. ' + 'The property is never released. See ' + 'https://fb.me/react-event-pooling for more information.');
              didWarnForAddedNewProperty = true;
            }
            target[prop] = value;
            return true;
          }
        });
      }
    });
    /*eslint-enable no-func-assign */
  }
}
/**
 * Helper to reduce boilerplate when creating subclasses.
 *
 * @param {function} Class
 * @param {?object} Interface
 */
SyntheticEvent$1.augmentClass = function (Class, Interface) {
  var Super = this;

  var E = function () {};
  E.prototype = Super.prototype;
  var prototype = new E();

  Object.assign(prototype, Class.prototype);
  Class.prototype = prototype;
  Class.prototype.constructor = Class;

  Class.Interface = Object.assign({}, Super.Interface, Interface);
  Class.augmentClass = Super.augmentClass;

  PooledClass$2.addPoolingTo(Class, PooledClass$2.fourArgumentPooler);
};

PooledClass$2.addPoolingTo(SyntheticEvent$1, PooledClass$2.fourArgumentPooler);

var SyntheticEvent_1 = SyntheticEvent$1;

/**
  * Helper to nullify syntheticEvent instance properties when destructing
  *
  * @param {object} SyntheticEvent
  * @param {String} propName
  * @return {object} defineProperty object
  */
function getPooledWarningPropertyDefinition(propName, getVal) {
  var isFunction = typeof getVal === 'function';
  return {
    configurable: true,
    set: set,
    get: get
  };

  function set(val) {
    var action = isFunction ? 'setting the method' : 'setting the property';
    warn(action, 'This is effectively a no-op');
    return val;
  }

  function get() {
    var action = isFunction ? 'accessing the method' : 'accessing the property';
    var result = isFunction ? 'This is a no-op function' : 'This is set to null';
    warn(action, result);
    return getVal;
  }

  function warn(action, result) {
    var warningCondition = false;
    warning$17(warningCondition, 'This synthetic event is reused for performance reasons. If you\'re seeing this, ' + 'you\'re %s `%s` on a released/nullified synthetic event. %s. ' + 'If you must keep the original synthetic event around, use event.persist(). ' + 'See https://fb.me/react-event-pooling for more information.', action, propName, result);
  }
}

var SyntheticEvent = SyntheticEvent_1;

/**
 * @interface Event
 * @see http://www.w3.org/TR/DOM-Level-3-Events/#events-compositionevents
 */
var CompositionEventInterface = {
  data: null
};

/**
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {string} dispatchMarker Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @extends {SyntheticUIEvent}
 */
function SyntheticCompositionEvent$1(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
  return SyntheticEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}

SyntheticEvent.augmentClass(SyntheticCompositionEvent$1, CompositionEventInterface);

var SyntheticCompositionEvent_1 = SyntheticCompositionEvent$1;

var SyntheticEvent$2 = SyntheticEvent_1;

/**
 * @interface Event
 * @see http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105
 *      /#events-inputevents
 */
var InputEventInterface = {
  data: null
};

/**
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {string} dispatchMarker Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @extends {SyntheticUIEvent}
 */
function SyntheticInputEvent$1(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
  return SyntheticEvent$2.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}

SyntheticEvent$2.augmentClass(SyntheticInputEvent$1, InputEventInterface);

var SyntheticInputEvent_1 = SyntheticInputEvent$1;

var EventPropagators = EventPropagators_1;
var ExecutionEnvironment$6 = ExecutionEnvironment;
var FallbackCompositionState = FallbackCompositionState_1;
var SyntheticCompositionEvent = SyntheticCompositionEvent_1;
var SyntheticInputEvent = SyntheticInputEvent_1;

var END_KEYCODES = [9, 13, 27, 32]; // Tab, Return, Esc, Space
var START_KEYCODE = 229;

var canUseCompositionEvent = ExecutionEnvironment$6.canUseDOM && 'CompositionEvent' in window;

var documentMode = null;
if (ExecutionEnvironment$6.canUseDOM && 'documentMode' in document) {
  documentMode = document.documentMode;
}

// Webkit offers a very useful `textInput` event that can be used to
// directly represent `beforeInput`. The IE `textinput` event is not as
// useful, so we don't use it.
var canUseTextInputEvent = ExecutionEnvironment$6.canUseDOM && 'TextEvent' in window && !documentMode && !isPresto();

// In IE9+, we have access to composition events, but the data supplied
// by the native compositionend event may be incorrect. Japanese ideographic
// spaces, for instance (\u3000) are not recorded correctly.
var useFallbackCompositionData = ExecutionEnvironment$6.canUseDOM && (!canUseCompositionEvent || documentMode && documentMode > 8 && documentMode <= 11);

/**
 * Opera <= 12 includes TextEvent in window, but does not fire
 * text input events. Rely on keypress instead.
 */
function isPresto() {
  var opera = window.opera;
  return typeof opera === 'object' && typeof opera.version === 'function' && parseInt(opera.version(), 10) <= 12;
}

var SPACEBAR_CODE = 32;
var SPACEBAR_CHAR = String.fromCharCode(SPACEBAR_CODE);

// Events and their corresponding property names.
var eventTypes = {
  beforeInput: {
    phasedRegistrationNames: {
      bubbled: 'onBeforeInput',
      captured: 'onBeforeInputCapture'
    },
    dependencies: ['topCompositionEnd', 'topKeyPress', 'topTextInput', 'topPaste']
  },
  compositionEnd: {
    phasedRegistrationNames: {
      bubbled: 'onCompositionEnd',
      captured: 'onCompositionEndCapture'
    },
    dependencies: ['topBlur', 'topCompositionEnd', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']
  },
  compositionStart: {
    phasedRegistrationNames: {
      bubbled: 'onCompositionStart',
      captured: 'onCompositionStartCapture'
    },
    dependencies: ['topBlur', 'topCompositionStart', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']
  },
  compositionUpdate: {
    phasedRegistrationNames: {
      bubbled: 'onCompositionUpdate',
      captured: 'onCompositionUpdateCapture'
    },
    dependencies: ['topBlur', 'topCompositionUpdate', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']
  }
};

// Track whether we've ever handled a keypress on the space key.
var hasSpaceKeypress = false;

/**
 * Return whether a native keypress event is assumed to be a command.
 * This is required because Firefox fires `keypress` events for key commands
 * (cut, copy, select-all, etc.) even though no character is inserted.
 */
function isKeypressCommand(nativeEvent) {
  return (nativeEvent.ctrlKey || nativeEvent.altKey || nativeEvent.metaKey) &&
  // ctrlKey && altKey is equivalent to AltGr, and is not a command.
  !(nativeEvent.ctrlKey && nativeEvent.altKey);
}

/**
 * Translate native top level events into event types.
 *
 * @param {string} topLevelType
 * @return {object}
 */
function getCompositionEventType(topLevelType) {
  switch (topLevelType) {
    case 'topCompositionStart':
      return eventTypes.compositionStart;
    case 'topCompositionEnd':
      return eventTypes.compositionEnd;
    case 'topCompositionUpdate':
      return eventTypes.compositionUpdate;
  }
}

/**
 * Does our fallback best-guess model think this event signifies that
 * composition has begun?
 *
 * @param {string} topLevelType
 * @param {object} nativeEvent
 * @return {boolean}
 */
function isFallbackCompositionStart(topLevelType, nativeEvent) {
  return topLevelType === 'topKeyDown' && nativeEvent.keyCode === START_KEYCODE;
}

/**
 * Does our fallback mode think that this event is the end of composition?
 *
 * @param {string} topLevelType
 * @param {object} nativeEvent
 * @return {boolean}
 */
function isFallbackCompositionEnd(topLevelType, nativeEvent) {
  switch (topLevelType) {
    case 'topKeyUp':
      // Command keys insert or clear IME input.
      return END_KEYCODES.indexOf(nativeEvent.keyCode) !== -1;
    case 'topKeyDown':
      // Expect IME keyCode on each keydown. If we get any other
      // code we must have exited earlier.
      return nativeEvent.keyCode !== START_KEYCODE;
    case 'topKeyPress':
    case 'topMouseDown':
    case 'topBlur':
      // Events are not possible without cancelling IME.
      return true;
    default:
      return false;
  }
}

/**
 * Google Input Tools provides composition data via a CustomEvent,
 * with the `data` property populated in the `detail` object. If this
 * is available on the event object, use it. If not, this is a plain
 * composition event and we have nothing special to extract.
 *
 * @param {object} nativeEvent
 * @return {?string}
 */
function getDataFromCustomEvent(nativeEvent) {
  var detail = nativeEvent.detail;
  if (typeof detail === 'object' && 'data' in detail) {
    return detail.data;
  }
  return null;
}

// Track the current IME composition fallback object, if any.
var currentComposition = null;

/**
 * @return {?object} A SyntheticCompositionEvent.
 */
function extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
  var eventType;
  var fallbackData;

  if (canUseCompositionEvent) {
    eventType = getCompositionEventType(topLevelType);
  } else if (!currentComposition) {
    if (isFallbackCompositionStart(topLevelType, nativeEvent)) {
      eventType = eventTypes.compositionStart;
    }
  } else if (isFallbackCompositionEnd(topLevelType, nativeEvent)) {
    eventType = eventTypes.compositionEnd;
  }

  if (!eventType) {
    return null;
  }

  if (useFallbackCompositionData) {
    // The current composition is stored statically and must not be
    // overwritten while composition continues.
    if (!currentComposition && eventType === eventTypes.compositionStart) {
      currentComposition = FallbackCompositionState.getPooled(nativeEventTarget);
    } else if (eventType === eventTypes.compositionEnd) {
      if (currentComposition) {
        fallbackData = currentComposition.getData();
      }
    }
  }

  var event = SyntheticCompositionEvent.getPooled(eventType, targetInst, nativeEvent, nativeEventTarget);

  if (fallbackData) {
    // Inject data generated from fallback path into the synthetic event.
    // This matches the property of native CompositionEventInterface.
    event.data = fallbackData;
  } else {
    var customData = getDataFromCustomEvent(nativeEvent);
    if (customData !== null) {
      event.data = customData;
    }
  }

  EventPropagators.accumulateTwoPhaseDispatches(event);
  return event;
}

/**
 * @param {string} topLevelType Record from `EventConstants`.
 * @param {object} nativeEvent Native browser event.
 * @return {?string} The string corresponding to this `beforeInput` event.
 */
function getNativeBeforeInputChars(topLevelType, nativeEvent) {
  switch (topLevelType) {
    case 'topCompositionEnd':
      return getDataFromCustomEvent(nativeEvent);
    case 'topKeyPress':
      /**
       * If native `textInput` events are available, our goal is to make
       * use of them. However, there is a special case: the spacebar key.
       * In Webkit, preventing default on a spacebar `textInput` event
       * cancels character insertion, but it *also* causes the browser
       * to fall back to its default spacebar behavior of scrolling the
       * page.
       *
       * Tracking at:
       * https://code.google.com/p/chromium/issues/detail?id=355103
       *
       * To avoid this issue, use the keypress event as if no `textInput`
       * event is available.
       */
      var which = nativeEvent.which;
      if (which !== SPACEBAR_CODE) {
        return null;
      }

      hasSpaceKeypress = true;
      return SPACEBAR_CHAR;

    case 'topTextInput':
      // Record the characters to be added to the DOM.
      var chars = nativeEvent.data;

      // If it's a spacebar character, assume that we have already handled
      // it at the keypress level and bail immediately. Android Chrome
      // doesn't give us keycodes, so we need to blacklist it.
      if (chars === SPACEBAR_CHAR && hasSpaceKeypress) {
        return null;
      }

      return chars;

    default:
      // For other native event types, do nothing.
      return null;
  }
}

/**
 * For browsers that do not provide the `textInput` event, extract the
 * appropriate string to use for SyntheticInputEvent.
 *
 * @param {string} topLevelType Record from `EventConstants`.
 * @param {object} nativeEvent Native browser event.
 * @return {?string} The fallback string for this `beforeInput` event.
 */
function getFallbackBeforeInputChars(topLevelType, nativeEvent) {
  // If we are currently composing (IME) and using a fallback to do so,
  // try to extract the composed characters from the fallback object.
  // If composition event is available, we extract a string only at
  // compositionevent, otherwise extract it at fallback events.
  if (currentComposition) {
    if (topLevelType === 'topCompositionEnd' || !canUseCompositionEvent && isFallbackCompositionEnd(topLevelType, nativeEvent)) {
      var chars = currentComposition.getData();
      FallbackCompositionState.release(currentComposition);
      currentComposition = null;
      return chars;
    }
    return null;
  }

  switch (topLevelType) {
    case 'topPaste':
      // If a paste event occurs after a keypress, throw out the input
      // chars. Paste events should not lead to BeforeInput events.
      return null;
    case 'topKeyPress':
      /**
       * As of v27, Firefox may fire keypress events even when no character
       * will be inserted. A few possibilities:
       *
       * - `which` is `0`. Arrow keys, Esc key, etc.
       *
       * - `which` is the pressed key code, but no char is available.
       *   Ex: 'AltGr + d` in Polish. There is no modified character for
       *   this key combination and no character is inserted into the
       *   document, but FF fires the keypress for char code `100` anyway.
       *   No `input` event will occur.
       *
       * - `which` is the pressed key code, but a command combination is
       *   being used. Ex: `Cmd+C`. No character is inserted, and no
       *   `input` event will occur.
       */
      if (nativeEvent.which && !isKeypressCommand(nativeEvent)) {
        return String.fromCharCode(nativeEvent.which);
      }
      return null;
    case 'topCompositionEnd':
      return useFallbackCompositionData ? null : nativeEvent.data;
    default:
      return null;
  }
}

/**
 * Extract a SyntheticInputEvent for `beforeInput`, based on either native
 * `textInput` or fallback behavior.
 *
 * @return {?object} A SyntheticInputEvent.
 */
function extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
  var chars;

  if (canUseTextInputEvent) {
    chars = getNativeBeforeInputChars(topLevelType, nativeEvent);
  } else {
    chars = getFallbackBeforeInputChars(topLevelType, nativeEvent);
  }

  // If no characters are being inserted, no BeforeInput event should
  // be fired.
  if (!chars) {
    return null;
  }

  var event = SyntheticInputEvent.getPooled(eventTypes.beforeInput, targetInst, nativeEvent, nativeEventTarget);

  event.data = chars;
  EventPropagators.accumulateTwoPhaseDispatches(event);
  return event;
}

/**
 * Create an `onBeforeInput` event to match
 * http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105/#events-inputevents.
 *
 * This event plugin is based on the native `textInput` event
 * available in Chrome, Safari, Opera, and IE. This event fires after
 * `onKeyPress` and `onCompositionEnd`, but before `onInput`.
 *
 * `beforeInput` is spec'd but not implemented in any browsers, and
 * the `input` event does not provide any useful information about what has
 * actually been added, contrary to the spec. Thus, `textInput` is the best
 * available event to identify the characters that have actually been inserted
 * into the target node.
 *
 * This plugin is also responsible for emitting `composition` events, thus
 * allowing us to share composition fallback code for both `beforeInput` and
 * `composition` event types.
 */
var BeforeInputEventPlugin$1 = {

  eventTypes: eventTypes,

  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    return [extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget), extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget)];
  }
};

var BeforeInputEventPlugin_1 = BeforeInputEventPlugin$1;

var ReactControlledComponent$3 = ReactControlledComponent_1;

// Used as a way to call batchedUpdates when we don't know if we're in a Fiber
// or Stack context. Such as when we're dispatching events or if third party
// libraries need to call batchedUpdates. Eventually, this API will go away when
// everything is batched by default. We'll then have a similar API to opt-out of
// scheduled work and instead do synchronous work.

// Defaults
var stackBatchedUpdates = function (fn, a, b, c, d, e) {
  return fn(a, b, c, d, e);
};
var fiberBatchedUpdates = function (fn, bookkeeping) {
  return fn(bookkeeping);
};

function performFiberBatchedUpdates(fn, bookkeeping) {
  // If we have Fiber loaded, we need to wrap this in a batching call so that
  // Fiber can apply its default priority for this call.
  return fiberBatchedUpdates(fn, bookkeeping);
}
function batchedUpdates(fn, bookkeeping) {
  // We first perform work with the stack batching strategy, by passing our
  // indirection to it.
  return stackBatchedUpdates(performFiberBatchedUpdates, fn, bookkeeping);
}

var isNestingBatched = false;
function batchedUpdatesWithControlledComponents(fn, bookkeeping) {
  if (isNestingBatched) {
    // If we are currently inside another batch, we need to wait until it
    // fully completes before restoring state. Therefore, we add the target to
    // a queue of work.
    return batchedUpdates(fn, bookkeeping);
  }
  isNestingBatched = true;
  try {
    return batchedUpdates(fn, bookkeeping);
  } finally {
    // Here we wait until all updates have propagated, which is important
    // when using controlled components within layers:
    // https://github.com/facebook/react/issues/1698
    // Then we restore state of any controlled component.
    isNestingBatched = false;
    ReactControlledComponent$3.restoreStateIfNeeded();
  }
}

var ReactGenericBatchingInjection = {
  injectStackBatchedUpdates: function (_batchedUpdates) {
    stackBatchedUpdates = _batchedUpdates;
  },
  injectFiberBatchedUpdates: function (_batchedUpdates) {
    fiberBatchedUpdates = _batchedUpdates;
  }
};

var ReactGenericBatching$2 = {
  batchedUpdates: batchedUpdatesWithControlledComponents,
  injection: ReactGenericBatchingInjection
};

var ReactGenericBatching_1 = ReactGenericBatching$2;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule getEventTarget
 */

/**
 * Gets the target node from a native browser event by accounting for
 * inconsistencies in browser DOM APIs.
 *
 * @param {object} nativeEvent Native browser event.
 * @return {DOMEventTarget} Target node.
 */

function getEventTarget$1(nativeEvent) {
  var target = nativeEvent.target || nativeEvent.srcElement || window;

  // Normalize SVG <use> element events #4963
  if (target.correspondingUseElement) {
    target = target.correspondingUseElement;
  }

  // Safari may fire events on text nodes (Node.TEXT_NODE is 3).
  // @see http://www.quirksmode.org/js/events_properties.html
  return target.nodeType === 3 ? target.parentNode : target;
}

var getEventTarget_1 = getEventTarget$1;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule isTextInputElement
 *
 */

/**
 * @see http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary
 */

var supportedInputTypes = {
  'color': true,
  'date': true,
  'datetime': true,
  'datetime-local': true,
  'email': true,
  'month': true,
  'number': true,
  'password': true,
  'range': true,
  'search': true,
  'tel': true,
  'text': true,
  'time': true,
  'url': true,
  'week': true
};

function isTextInputElement$1(elem) {
  var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase();

  if (nodeName === 'input') {
    return !!supportedInputTypes[elem.type];
  }

  if (nodeName === 'textarea') {
    return true;
  }

  return false;
}

var isTextInputElement_1 = isTextInputElement$1;

var EventPluginHub$4 = EventPluginHub_1;
var EventPropagators$2 = EventPropagators_1;
var ExecutionEnvironment$8 = ExecutionEnvironment;
var ReactControlledComponent$2 = ReactControlledComponent_1;
var ReactDOMComponentTree$6 = ReactDOMComponentTree_1;
var ReactGenericBatching$1 = ReactGenericBatching_1;
var SyntheticEvent$3 = SyntheticEvent_1;

var inputValueTracking$2 = inputValueTracking_1;
var getEventTarget = getEventTarget_1;
var isEventSupported$3 = isEventSupported_1;
var isTextInputElement = isTextInputElement_1;

var eventTypes$1 = {
  change: {
    phasedRegistrationNames: {
      bubbled: 'onChange',
      captured: 'onChangeCapture'
    },
    dependencies: ['topBlur', 'topChange', 'topClick', 'topFocus', 'topInput', 'topKeyDown', 'topKeyUp', 'topSelectionChange']
  }
};

function createAndAccumulateChangeEvent(inst, nativeEvent, target) {
  var event = SyntheticEvent$3.getPooled(eventTypes$1.change, inst, nativeEvent, target);
  event.type = 'change';
  // Flag this event loop as needing state restore.
  ReactControlledComponent$2.enqueueStateRestore(target);
  EventPropagators$2.accumulateTwoPhaseDispatches(event);
  return event;
}
/**
 * For IE shims
 */
var activeElement = null;
var activeElementInst = null;

/**
 * SECTION: handle `change` event
 */
function shouldUseChangeEvent(elem) {
  var nodeName = elem.nodeName && elem.nodeName.toLowerCase();
  return nodeName === 'select' || nodeName === 'input' && elem.type === 'file';
}

var doesChangeEventBubble = false;
if (ExecutionEnvironment$8.canUseDOM) {
  // See `handleChange` comment below
  doesChangeEventBubble = isEventSupported$3('change') && (!document.documentMode || document.documentMode > 8);
}

function manualDispatchChangeEvent(nativeEvent) {
  var event = createAndAccumulateChangeEvent(activeElementInst, nativeEvent, getEventTarget(nativeEvent));

  // If change and propertychange bubbled, we'd just bind to it like all the
  // other events and have it go through ReactBrowserEventEmitter. Since it
  // doesn't, we manually listen for the events and so we have to enqueue and
  // process the abstract event manually.
  //
  // Batching is necessary here in order to ensure that all event handlers run
  // before the next rerender (including event handlers attached to ancestor
  // elements instead of directly on the input). Without this, controlled
  // components don't work properly in conjunction with event bubbling because
  // the component is rerendered and the value reverted before all the event
  // handlers can run. See https://github.com/facebook/react/issues/708.
  ReactGenericBatching$1.batchedUpdates(runEventInBatch, event);
}

function runEventInBatch(event) {
  EventPluginHub$4.enqueueEvents(event);
  EventPluginHub$4.processEventQueue(false);
}

function startWatchingForChangeEventIE8(target, targetInst) {
  activeElement = target;
  activeElementInst = targetInst;
  activeElement.attachEvent('onchange', manualDispatchChangeEvent);
}

function stopWatchingForChangeEventIE8() {
  if (!activeElement) {
    return;
  }
  activeElement.detachEvent('onchange', manualDispatchChangeEvent);
  activeElement = null;
  activeElementInst = null;
}

function getInstIfValueChanged(targetInst) {
  if (inputValueTracking$2.updateValueIfChanged(targetInst)) {
    return targetInst;
  }
}

function getTargetInstForChangeEvent(topLevelType, targetInst) {
  if (topLevelType === 'topChange') {
    return targetInst;
  }
}

function handleEventsForChangeEventIE8(topLevelType, target, targetInst) {
  if (topLevelType === 'topFocus') {
    // stopWatching() should be a noop here but we call it just in case we
    // missed a blur event somehow.
    stopWatchingForChangeEventIE8();
    startWatchingForChangeEventIE8(target, targ