Created
December 9, 2013 22:30
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Here's an example of React + jQuery UI sortable. The key thing to note is that we have the render() method do absolutely nothing and use componentDidUpdate() + React.renderComponent() to proxy updates through to the children. This lets us manage the DOM manually but still be able to use all the React goodies you know and love.
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| <html> | |
| <head> | |
| <title>Test</title> | |
| <script src="http://code.jquery.com/jquery-1.9.1.js"></script> | |
| <script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script> | |
| <link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" /> | |
| <script src="http://fb.me/react-0.5.1.js"></script> | |
| <script src="http://fb.me/JSXTransformer-0.5.1.js"></script> | |
| </head> | |
| <body> | |
| <script type="text/jsx"> | |
| /** @jsx React.DOM */ | |
| function cloneWithProps(c) { | |
| // Coming in next version of React! | |
| var newInstance = new c.constructor(); | |
| newInstance.construct(c.props); | |
| return newInstance; | |
| } | |
| var TestItem = React.createClass({ | |
| getInitialState: function() { | |
| return {count: 0}; | |
| }, | |
| componentDidMount: function() { | |
| this.interval = setInterval(this.handleTick, 1000); | |
| }, | |
| componentWillUnmount: function() { | |
| clearInterval(this.interval); | |
| }, | |
| handleTick: function() { | |
| this.setState({count: this.state.count + 1}); | |
| }, | |
| render: function() { | |
| return <span>{this.props.children}{': '}{this.state.count}</span>; | |
| } | |
| }); | |
| var SmartSortable = React.createClass({ | |
| getDefaultProps: function() { | |
| return {component: React.DOM.ul, childComponent: React.DOM.li}; | |
| }, | |
| render: function() { | |
| var component = this.props.component; | |
| return this.transferPropsTo(<component />); | |
| }, | |
| componentDidMount: function() { | |
| jQuery(this.getDOMNode()).sortable({stop: this.handleDrop}); | |
| this.getChildren().forEach(function(child, i) { | |
| jQuery(this.getDOMNode()).append('<' + this.props.childComponent.componentConstructor.displayName + ' />'); | |
| var node = jQuery(this.getDOMNode()).children().last()[0]; | |
| node.dataset.reactSortablePos = i; | |
| React.renderComponent(cloneWithProps(child), node); | |
| }.bind(this)); | |
| }, | |
| componentDidUpdate: function() { | |
| var childIndex = 0; | |
| var nodeIndex = 0; | |
| var children = this.getChildren(); | |
| var nodes = jQuery(this.getDOMNode()).children(); | |
| var numChildren = children.length; | |
| var numNodes = nodes.length; | |
| while (childIndex < numChildren) { | |
| if (nodeIndex >= numNodes) { | |
| jQuery(this.getDOMNode()).append('<' + this.props.childComponent.componentConstructor.displayName + '/>'); | |
| nodes.push(jQuery(this.getDOMNode()).children().last()[0]); | |
| nodes[numNodes].dataset.reactSortablePos = numNodes; | |
| numNodes++; | |
| } | |
| React.renderComponent(cloneWithProps(children[childIndex]), nodes[nodeIndex]); | |
| childIndex++; | |
| nodeIndex++; | |
| } | |
| while (nodeIndex < numNodes) { | |
| React.unmountComponentAtNode(nodes[nodeIndex]); | |
| jQuery(nodes[nodeIndex]).remove(); | |
| nodeIndex++; | |
| } | |
| }, | |
| componentWillUnmount: function() { | |
| jQuery(this.getDOMNode()).children().get().forEach(function(node) { | |
| React.unmountComponentAtNode(node); | |
| }); | |
| }, | |
| getChildren: function() { | |
| // TODO: use mapChildren() | |
| return this.props.children || []; | |
| }, | |
| handleDrop: function() { | |
| var newOrder = jQuery(this.getDOMNode()).children().get().map(function(child, i) { | |
| var rv = child.dataset.reactSortablePos; | |
| child.dataset.reactSortablePos = i; | |
| return rv; | |
| }); | |
| this.props.onSort(newOrder); | |
| } | |
| }); | |
| var App = React.createClass({ | |
| getInitialState: function() { | |
| return {items: ['test 0', 'test 1', 'test 2'], counter: 3}; | |
| }, | |
| handleSort: function(newOrder) { | |
| var newItems = newOrder.map(function(index) { | |
| return this.state.items[index]; | |
| }.bind(this)); | |
| this.setState({items: newItems}); | |
| }, | |
| handleAdd: function() { | |
| var newItems = this.state.items.concat(['test ' + this.state.counter]); | |
| this.setState({items: newItems, counter: this.state.counter + 1}); | |
| }, | |
| handleRemove: function() { | |
| this.setState({items: this.state.items.slice(0, this.state.items.length - 1)}); | |
| }, | |
| render: function() { | |
| var items = this.state.items.map(function(item) { | |
| return <li key={item}><TestItem>{item}</TestItem></li>; | |
| }); | |
| return ( | |
| <div> | |
| <h1>React + Sortable</h1> | |
| <SmartSortable onSort={this.handleSort}> | |
| {items} | |
| </SmartSortable> | |
| <p>Current order: {JSON.stringify(this.state.items)}</p> | |
| <p><button onClick={this.handleAdd}>Add an item</button></p> | |
| <p><button onClick={this.handleRemove}>Remove an item</button></p> | |
| </div> | |
| ); | |
| } | |
| }); | |
| React.renderComponent(<App />, document.body); | |
| </script> | |
| </body> | |
| </html> |
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how to use the connectWith method in react??