README.md

Super Simple Event Dispatcher

Use this to add events to your objects without needing any libaries.

Simple function can be imported or copy pasted. In your object constructor assign your event functions to the return value of the createCustomEvent().

Simple example:

<script src="createCustomEvent.js" type="text/javascript"></script>

Then in your object definition code:

// Define
function MyObject() {
  this.onCustomEvent = createCustomEvent();
}
MyObject.prototype.test = function() {
  this.onCustomEvent("message");
};

// Add listeners
var instance = new MyObject();
instance.onCustomEvent( function(msg) {
  alert(msg);
} );

// Run
instance.test();

See it working at jsbin.com.

createCustomEvent.coffee

global = exports ? @
global.createCustomEvent = ->
  handlers = []
  return ->
    if arguments.length is 1 and typeof arguments[0] is "function"
      handlers.push arguments[0]
      return
    handler.apply(@, arguments) for handler in handlers
    return

createCustomEvent.js

(function(exports) {
  exports.createCustomEvent = function() { 
    var handlers = [];
    return function() {
      if (arguments.length === 1 && typeof arguments[0] === 'function') {
        handlers.push(arguments[0]);
        return;
      }
      for (var i = 0, len = handlers.length; i < len; ++i) {
        handlers[i].apply(this, arguments);
      }
    }; 
  };
})(typeof exports !== "undefined" && exports !== null ? exports : this)