Created
January 31, 2011 19:17
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angular x:local scope widget
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| <html xmlns="http://www.w3.org/1999/xhtml" xmlns:ng="http://angularjs.org/"> | |
| <head> | |
| <meta http-equiv="content-type" content="text/html; charset=utf-8" /> | |
| <title>x:local example</title> | |
| <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script> | |
| <script src="http://code.angularjs.org/0.9.10/angular-0.9.10.min.js" ng:autobind="autobind"></script> | |
| <script src="angular.local.js" type="text/javascript"></script> | |
| </head> | |
| <body ng:init="item = { name: 'Bozo', color: 'blue', feathers: false }"> | |
| <button ng:click="item = { name: 'Bozo', color: 'blue', feathers: false }">Bozo</button> | |
| <button ng:click="item = { name: 'ozoB', color: 'yellow', feathers: true }">ozoB</button> | |
| <h2>with x:local="item"</h2> | |
| <fieldset x:local="item"> | |
| <legend>item</legend> | |
| <ul> | |
| <li>$id: {{ $id }}</li> | |
| <li>name: <input name="name"></li> | |
| <li>color: <input name="color"></li> | |
| <li>feathers: <input type="checkbox" name="feathers"></li> | |
| </ul> | |
| </fieldset> | |
| <h2>regular</h2> | |
| <ul> | |
| <li>item.$id: {{ item.$id }}</li> | |
| <li>item.name: <input name="item.name"></li> | |
| <li>item.color: <input name="item.color"></li> | |
| <li>item.feathers: <input type="checkbox" name="item.feathers"></li> | |
| </ul> | |
| </body> | |
| </html> |
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| // Creates a local scope using the specified expression | |
| angular.widget('@x:local', function(expression, element) { | |
| element.removeAttr('x:local'); | |
| element.replaceWith(this.comment('x:local: ' + expression)); | |
| var template = this.compile(element); | |
| return function(linkElement) { | |
| var currentScope = this; | |
| var childScope = template(element, angular.scope(currentScope)); | |
| this.$onEval(function() { | |
| var value = currentScope.$get(expression); | |
| if (value !== childScope) { | |
| angular.extend(childScope, value); | |
| currentScope.$set(expression, childScope); | |
| } | |
| }); | |
| linkElement.after(childScope.$element); | |
| currentScope.$onEval(childScope.$eval); | |
| childScope.$init(); | |
| }; | |
| }); |
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