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-<head>\r
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> \r
- <title>The source code</title>\r
- <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />\r
- <script type="text/javascript" src="../resources/prettify/prettify.js"></script>\r
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-<body onload="prettyPrint();">\r
- <pre class="prettyprint lang-js"><div id="cls-Ext.tree.AsyncTreeNode"></div>/**\r
- * @class Ext.tree.AsyncTreeNode\r
- * @extends Ext.tree.TreeNode\r
- * @cfg {TreeLoader} loader A TreeLoader to be used by this node (defaults to the loader defined on the tree)\r
- * @constructor\r
- * @param {Object/String} attributes The attributes/config for the node or just a string with the text for the node \r
- */\r
- Ext.tree.AsyncTreeNode = function(config){\r
- this.loaded = config && config.loaded === true;\r
- this.loading = false;\r
- Ext.tree.AsyncTreeNode.superclass.constructor.apply(this, arguments);\r
- /**\r
- * @event beforeload\r
- * Fires before this node is loaded, return false to cancel\r
- * @param {Node} this This node\r
- */\r
- this.addEvents('beforeload', 'load');\r
- /**\r
- * @event load\r
- * Fires when this node is loaded\r
- * @param {Node} this This node\r
- */\r
- /**\r
- * The loader used by this node (defaults to using the tree's defined loader)\r
- * @type TreeLoader\r
- * @property loader\r
- */\r
-};\r
-Ext.extend(Ext.tree.AsyncTreeNode, Ext.tree.TreeNode, {\r
- expand : function(deep, anim, callback, scope){\r
- if(this.loading){ // if an async load is already running, waiting til it's done\r
- var timer;\r
- var f = function(){\r
- if(!this.loading){ // done loading\r
- clearInterval(timer);\r
- this.expand(deep, anim, callback, scope);\r
- }\r
- }.createDelegate(this);\r
- timer = setInterval(f, 200);\r
- return;\r
- }\r
- if(!this.loaded){\r
- if(this.fireEvent("beforeload", this) === false){\r
- return;\r
- }\r
- this.loading = true;\r
- this.ui.beforeLoad(this);\r
- var loader = this.loader || this.attributes.loader || this.getOwnerTree().getLoader();\r
- if(loader){\r
- loader.load(this, this.loadComplete.createDelegate(this, [deep, anim, callback, scope]), this);\r
- return;\r
- }\r
- }\r
- Ext.tree.AsyncTreeNode.superclass.expand.call(this, deep, anim, callback, scope);\r
- },\r
- \r
- /**\r
- * Returns true if this node is currently loading\r
- * @return {Boolean}\r
- */\r
- isLoading : function(){\r
- return this.loading; \r
- },\r
- \r
- loadComplete : function(deep, anim, callback, scope){\r
- this.loading = false;\r
- this.loaded = true;\r
- this.ui.afterLoad(this);\r
- this.fireEvent("load", this);\r
- this.expand(deep, anim, callback, scope);\r
- },\r
- \r
- /**\r
- * Returns true if this node has been loaded\r
- * @return {Boolean}\r
- */\r
- isLoaded : function(){\r
- return this.loaded;\r
- },\r
- \r
- hasChildNodes : function(){\r
- if(!this.isLeaf() && !this.loaded){\r
- return true;\r
- }else{\r
- return Ext.tree.AsyncTreeNode.superclass.hasChildNodes.call(this);\r
- }\r
- },\r
-\r
- /**\r
- * Trigger a reload for this node\r
- * @param {Function} callback\r
- * @param {Object} scope (optional) The scope (<code>this</code> reference) in which the callback is executed. Defaults to this Node.\r
- */\r
- reload : function(callback, scope){\r
- this.collapse(false, false);\r
- while(this.firstChild){\r
- this.removeChild(this.firstChild).destroy();\r
- }\r
- this.childrenRendered = false;\r
- this.loaded = false;\r
- if(this.isHiddenRoot()){\r
- this.expanded = false;\r
- }\r
- this.expand(false, false, callback, scope);\r
- }\r
-});\r
-\r
-Ext.tree.TreePanel.nodeTypes.async = Ext.tree.AsyncTreeNode;</pre> \r
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-</html>
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