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[roojs1] / docs2 / src / Roo_tree_TreeLoader.js.html
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-<html><head><title>/home/alan/gitlive/roojs1/Roo/tree/TreeLoader.js</title><link rel="stylesheet" type="text/css" href="../../css/highlight-js.css"/></head><body class="highlightpage"><code class="jsdoc-pretty"><span class="jsdoc-comment">/*
- * Based on:
- * Ext JS Library 1.1.1
- * Copyright(c) 2006-2007, Ext JS, LLC.
- *
- * Originally Released Under LGPL - original licence link has changed is not relivant.
- *
- * Fork - LGPL
- * &lt;script type=&quot;text/javascript&quot;&gt;
- */
-/**
- * @class Roo.tree.TreeLoader
- * @extends Roo.util.Observable
- * A TreeLoader provides for lazy loading of an {@link Roo.tree.TreeNode}'s child
- * nodes from a specified URL. The response must be a javascript Array definition
- * who's elements are node definition objects. eg:
- * &lt;pre&gt;&lt;code&gt;
-{  success : true,
-   data :      [
-   
-    { 'id': 1, 'text': 'A folder Node', 'leaf': false },
-    { 'id': 2, 'text': 'A leaf Node', 'leaf': true }
-    ]
-}
-
-
-&lt;/code&gt;&lt;/pre&gt;
- * &lt;br&gt;&lt;br&gt;
- * The old style respose with just an array is still supported, but not recommended.
- * &lt;br&gt;&lt;br&gt;
- *
- * A server request is sent, and child nodes are loaded only when a node is expanded.
- * The loading node's id is passed to the server under the parameter name &quot;node&quot; to
- * enable the server to produce the correct child nodes.
- * &lt;br&gt;&lt;br&gt;
- * To pass extra parameters, an event handler may be attached to the &quot;beforeload&quot;
- * event, and the parameters specified in the TreeLoader's baseParams property:
- * &lt;pre&gt;&lt;code&gt;
-    myTreeLoader.on(&quot;beforeload&quot;, function(treeLoader, node) {
-        this.baseParams.category = node.attributes.category;
-    }, this);
-&lt;/code&gt;&lt;/pre&gt;&lt;
- * This would pass an HTTP parameter called &quot;category&quot; to the server containing
- * the value of the Node's &quot;category&quot; attribute.
- * @constructor
- * Creates a new Treeloader.
- * @param {Object} config A config object containing config properties.
- */
-</span><span class="jsdoc-var">Roo.tree.TreeLoader </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">config</span><span class="jsdoc-syntax">){
-    </span><span class="jsdoc-var">this.baseParams </span><span class="jsdoc-syntax">= {};
-    </span><span class="jsdoc-var">this.requestMethod </span><span class="jsdoc-syntax">= </span><span class="jsdoc-string">&quot;POST&quot;</span><span class="jsdoc-syntax">;
-    </span><span class="jsdoc-var">Roo.apply</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">config</span><span class="jsdoc-syntax">);
-
-    </span><span class="jsdoc-var">this.addEvents</span><span class="jsdoc-syntax">({
-
-        </span><span class="jsdoc-comment">/**
-         * @event beforeload
-         * Fires before a network request is made to retrieve the Json text which specifies a node's children.
-         * @param {Object} This TreeLoader object.
-         * @param {Object} node The {@link Roo.tree.TreeNode} object being loaded.
-         * @param {Object} callback The callback function specified in the {@link #load} call.
-         */
-        </span><span class="jsdoc-var">beforeload </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">true</span><span class="jsdoc-syntax">,
-        </span><span class="jsdoc-comment">/**
-         * @event load
-         * Fires when the node has been successfuly loaded.
-         * @param {Object} This TreeLoader object.
-         * @param {Object} node The {@link Roo.tree.TreeNode} object being loaded.
-         * @param {Object} response The response object containing the data from the server.
-         */
-        </span><span class="jsdoc-var">load </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">true</span><span class="jsdoc-syntax">,
-        </span><span class="jsdoc-comment">/**
-         * @event loadexception
-         * Fires if the network request failed.
-         * @param {Object} This TreeLoader object.
-         * @param {Object} node The {@link Roo.tree.TreeNode} object being loaded.
-         * @param {Object} response The response object containing the data from the server.
-         */
-        </span><span class="jsdoc-var">loadexception </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">true</span><span class="jsdoc-syntax">,
-        </span><span class="jsdoc-comment">/**
-         * @event create
-         * Fires before a node is created, enabling you to return custom Node types 
-         * @param {Object} This TreeLoader object.
-         * @param {Object} attr - the data returned from the AJAX call (modify it to suit)
-         */
-        </span><span class="jsdoc-var">create </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">true
-    </span><span class="jsdoc-syntax">});
-
-    </span><span class="jsdoc-var">Roo.tree.TreeLoader.superclass.constructor.call</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">);
-};
-
-</span><span class="jsdoc-var">Roo.extend</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">Roo.tree.TreeLoader</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">Roo.util.Observable</span><span class="jsdoc-syntax">, {
-    </span><span class="jsdoc-comment">/**
-    * @cfg {String} dataUrl The URL from which to request a Json string which
-    * specifies an array of node definition object representing the child nodes
-    * to be loaded.
-    */
-    /**
-    * @cfg {String} requestMethod either GET or POST
-    * defaults to POST (due to BC)
-    * to be loaded.
-    */
-    /**
-    * @cfg {Object} baseParams (optional) An object containing properties which
-    * specify HTTP parameters to be passed to each request for child nodes.
-    */
-    /**
-    * @cfg {Object} baseAttrs (optional) An object containing attributes to be added to all nodes
-    * created by this loader. If the attributes sent by the server have an attribute in this object,
-    * they take priority.
-    */
-    /**
-    * @cfg {Object} uiProviders (optional) An object containing properties which
-    * 
-    * DEPRECATED - use 'create' event handler to modify attributes - which affect creation.
-    * specify custom {@link Roo.tree.TreeNodeUI} implementations. If the optional
-    * &lt;i&gt;uiProvider&lt;/i&gt; attribute of a returned child node is a string rather
-    * than a reference to a TreeNodeUI implementation, this that string value
-    * is used as a property name in the uiProviders object. You can define the provider named
-    * 'default' , and this will be used for all nodes (if no uiProvider is delivered by the node data)
-    */
-    </span><span class="jsdoc-var">uiProviders </span><span class="jsdoc-syntax">: {},
-
-    </span><span class="jsdoc-comment">/**
-    * @cfg {Boolean} clearOnLoad (optional) Default to true. Remove previously existing
-    * child nodes before loading.
-    */
-    </span><span class="jsdoc-var">clearOnLoad </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">true</span><span class="jsdoc-syntax">,
-
-    </span><span class="jsdoc-comment">/**
-    * @cfg {String} root (optional) Default to false. Use this to read data from an object 
-    * property on loading, rather than expecting an array. (eg. more compatible to a standard
-    * Grid query { data : [ .....] }
-    */
-
-    </span><span class="jsdoc-var">root </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">,
-     </span><span class="jsdoc-comment">/**
-    * @cfg {String} queryParam (optional) 
-    * Name of the query as it will be passed on the querystring (defaults to 'node')
-    * eg. the request will be ?node=[id]
-    */
-
-
-    </span><span class="jsdoc-var">queryParam</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">,
-
-    </span><span class="jsdoc-comment">/**
-     * Load an {@link Roo.tree.TreeNode} from the URL specified in the constructor.
-     * This is called automatically when a node is expanded, but may be used to reload
-     * a node (or append new children if the {@link #clearOnLoad} option is false.)
-     * @param {Roo.tree.TreeNode} node
-     * @param {Function} callback
-     */
-    </span><span class="jsdoc-var">load </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">node</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">callback</span><span class="jsdoc-syntax">){
-        </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.clearOnLoad</span><span class="jsdoc-syntax">){
-            </span><span class="jsdoc-keyword">while</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">node.firstChild</span><span class="jsdoc-syntax">){
-                </span><span class="jsdoc-var">node.removeChild</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">node.firstChild</span><span class="jsdoc-syntax">);
-            }
-        }
-        </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">node.attributes.children</span><span class="jsdoc-syntax">){ </span><span class="jsdoc-comment">// preloaded json children
-            </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">cs </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">node.attributes.children</span><span class="jsdoc-syntax">;
-            </span><span class="jsdoc-keyword">for</span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">i </span><span class="jsdoc-syntax">= 0, </span><span class="jsdoc-var">len </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">cs.length</span><span class="jsdoc-syntax">; </span><span class="jsdoc-var">i </span><span class="jsdoc-syntax">&lt; </span><span class="jsdoc-var">len</span><span class="jsdoc-syntax">; </span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">++){
-                </span><span class="jsdoc-var">node.appendChild</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.createNode</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">cs</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">]));
-            }
-            </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">typeof </span><span class="jsdoc-var">callback </span><span class="jsdoc-syntax">== </span><span class="jsdoc-string">&quot;function&quot;</span><span class="jsdoc-syntax">){
-                </span><span class="jsdoc-var">callback</span><span class="jsdoc-syntax">();
-            }
-        }</span><span class="jsdoc-keyword">else if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.dataUrl</span><span class="jsdoc-syntax">){
-            </span><span class="jsdoc-var">this.requestData</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">node</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">callback</span><span class="jsdoc-syntax">);
-        }
-    },
-
-    </span><span class="jsdoc-var">getParams</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">node</span><span class="jsdoc-syntax">){
-        </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">buf </span><span class="jsdoc-syntax">= [], </span><span class="jsdoc-var">bp </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">this.baseParams</span><span class="jsdoc-syntax">;
-        </span><span class="jsdoc-keyword">for</span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">key </span><span class="jsdoc-keyword">in </span><span class="jsdoc-var">bp</span><span class="jsdoc-syntax">){
-            </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">typeof </span><span class="jsdoc-var">bp</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">key</span><span class="jsdoc-syntax">] != </span><span class="jsdoc-string">&quot;function&quot;</span><span class="jsdoc-syntax">){
-                </span><span class="jsdoc-var">buf.push</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">encodeURIComponent</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">key</span><span class="jsdoc-syntax">), </span><span class="jsdoc-string">&quot;=&quot;</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">encodeURIComponent</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">bp</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">key</span><span class="jsdoc-syntax">]), </span><span class="jsdoc-string">&quot;&amp;&quot;</span><span class="jsdoc-syntax">);
-            }
-        }
-        </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">n </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">this.queryParam </span><span class="jsdoc-syntax">=== </span><span class="jsdoc-keyword">false </span><span class="jsdoc-syntax">? </span><span class="jsdoc-string">'node' </span><span class="jsdoc-syntax">: </span><span class="jsdoc-var">this.queryParam</span><span class="jsdoc-syntax">;
-        </span><span class="jsdoc-var">buf.push</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">n </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-string">&quot;=&quot;</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">encodeURIComponent</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">node.id</span><span class="jsdoc-syntax">));
-        </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">buf.join</span><span class="jsdoc-syntax">(</span><span class="jsdoc-string">&quot;&quot;</span><span class="jsdoc-syntax">);
-    },
-
-    </span><span class="jsdoc-var">requestData </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">node</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">callback</span><span class="jsdoc-syntax">){
-        </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.fireEvent</span><span class="jsdoc-syntax">(</span><span class="jsdoc-string">&quot;beforeload&quot;</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">node</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">callback</span><span class="jsdoc-syntax">) !== </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">){
-            </span><span class="jsdoc-var">this.transId </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">Roo.Ajax.request</span><span class="jsdoc-syntax">({
-                </span><span class="jsdoc-var">method</span><span class="jsdoc-syntax">:</span><span class="jsdoc-var">this.requestMethod</span><span class="jsdoc-syntax">,
-                </span><span class="jsdoc-var">url</span><span class="jsdoc-syntax">: </span><span class="jsdoc-var">this.dataUrl</span><span class="jsdoc-syntax">||</span><span class="jsdoc-var">this.url</span><span class="jsdoc-syntax">,
-                </span><span class="jsdoc-var">success</span><span class="jsdoc-syntax">: </span><span class="jsdoc-var">this.handleResponse</span><span class="jsdoc-syntax">,
-                </span><span class="jsdoc-var">failure</span><span class="jsdoc-syntax">: </span><span class="jsdoc-var">this.handleFailure</span><span class="jsdoc-syntax">,
-                </span><span class="jsdoc-var">scope</span><span class="jsdoc-syntax">: </span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">,
-                </span><span class="jsdoc-var">argument</span><span class="jsdoc-syntax">: {</span><span class="jsdoc-var">callback</span><span class="jsdoc-syntax">: </span><span class="jsdoc-var">callback</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">node</span><span class="jsdoc-syntax">: </span><span class="jsdoc-var">node</span><span class="jsdoc-syntax">},
-                </span><span class="jsdoc-var">params</span><span class="jsdoc-syntax">: </span><span class="jsdoc-var">this.getParams</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">node</span><span class="jsdoc-syntax">)
-            });
-        }</span><span class="jsdoc-keyword">else</span><span class="jsdoc-syntax">{
-            </span><span class="jsdoc-comment">// if the load is cancelled, make sure we notify
-            // the node that we are done
-            </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">typeof </span><span class="jsdoc-var">callback </span><span class="jsdoc-syntax">== </span><span class="jsdoc-string">&quot;function&quot;</span><span class="jsdoc-syntax">){
-                </span><span class="jsdoc-var">callback</span><span class="jsdoc-syntax">();
-            }
-        }
-    },
-
-    </span><span class="jsdoc-var">isLoading </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(){
-        </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">this.transId </span><span class="jsdoc-syntax">? </span><span class="jsdoc-keyword">true </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">;
-    },
-
-    </span><span class="jsdoc-var">abort </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(){
-        </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.isLoading</span><span class="jsdoc-syntax">()){
-            </span><span class="jsdoc-var">Roo.Ajax.abort</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.transId</span><span class="jsdoc-syntax">);
-        }
-    },
-
-    </span><span class="jsdoc-comment">// private
-    </span><span class="jsdoc-var">createNode </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">attr</span><span class="jsdoc-syntax">)
-    {
-        </span><span class="jsdoc-comment">// apply baseAttrs, nice idea Corey!
-        </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.baseAttrs</span><span class="jsdoc-syntax">){
-            </span><span class="jsdoc-var">Roo.applyIf</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">attr</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">this.baseAttrs</span><span class="jsdoc-syntax">);
-        }
-        </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.applyLoader </span><span class="jsdoc-syntax">!== </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">){
-            </span><span class="jsdoc-var">attr.loader </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">;
-        }
-        </span><span class="jsdoc-comment">// uiProvider = depreciated..
-
-        </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">typeof</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">attr.uiProvider</span><span class="jsdoc-syntax">) == </span><span class="jsdoc-string">'string'</span><span class="jsdoc-syntax">){
-           </span><span class="jsdoc-var">attr.uiProvider </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">this.uiProviders</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">attr.uiProvider</span><span class="jsdoc-syntax">] ||
-                </span><span class="jsdoc-comment">/**  eval:var:attr */ </span><span class="jsdoc-keyword">eval</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">attr.uiProvider</span><span class="jsdoc-syntax">);
-        }
-        </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">typeof</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.uiProviders</span><span class="jsdoc-syntax">[</span><span class="jsdoc-string">'default'</span><span class="jsdoc-syntax">]) != </span><span class="jsdoc-string">'undefined'</span><span class="jsdoc-syntax">) {
-            </span><span class="jsdoc-var">attr.uiProvider </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">this.uiProviders</span><span class="jsdoc-syntax">[</span><span class="jsdoc-string">'default'</span><span class="jsdoc-syntax">];
-        }
-
-        </span><span class="jsdoc-var">this.fireEvent</span><span class="jsdoc-syntax">(</span><span class="jsdoc-string">'create'</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">attr</span><span class="jsdoc-syntax">);
-
-        </span><span class="jsdoc-var">attr.leaf  </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">typeof</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">attr.leaf</span><span class="jsdoc-syntax">) == </span><span class="jsdoc-string">'string' </span><span class="jsdoc-syntax">? </span><span class="jsdoc-var">attr.leaf </span><span class="jsdoc-syntax">* 1 : </span><span class="jsdoc-var">attr.leaf</span><span class="jsdoc-syntax">;
-        </span><span class="jsdoc-keyword">return</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">attr.leaf </span><span class="jsdoc-syntax">?
-                        </span><span class="jsdoc-keyword">new </span><span class="jsdoc-var">Roo.tree.TreeNode</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">attr</span><span class="jsdoc-syntax">) :
-                        </span><span class="jsdoc-keyword">new </span><span class="jsdoc-var">Roo.tree.AsyncTreeNode</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">attr</span><span class="jsdoc-syntax">));
-    },
-
-    </span><span class="jsdoc-var">processResponse </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">response</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">node</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">callback</span><span class="jsdoc-syntax">)
-    {
-        </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">json </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">response.responseText</span><span class="jsdoc-syntax">;
-        </span><span class="jsdoc-keyword">try </span><span class="jsdoc-syntax">{
-
-            </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">o </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">Roo.decode</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">json</span><span class="jsdoc-syntax">);
-
-            </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.root </span><span class="jsdoc-syntax">=== </span><span class="jsdoc-keyword">false </span><span class="jsdoc-syntax">&amp;&amp; </span><span class="jsdoc-keyword">typeof</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">o.success</span><span class="jsdoc-syntax">) != </span><span class="jsdoc-var">undefined</span><span class="jsdoc-syntax">) {
-                </span><span class="jsdoc-var">this.root </span><span class="jsdoc-syntax">= </span><span class="jsdoc-string">'data'</span><span class="jsdoc-syntax">; </span><span class="jsdoc-comment">// the default behaviour for list like data..
-                </span><span class="jsdoc-syntax">}
-
-            </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.root </span><span class="jsdoc-syntax">!== </span><span class="jsdoc-keyword">false </span><span class="jsdoc-syntax">&amp;&amp;  !</span><span class="jsdoc-var">o.success</span><span class="jsdoc-syntax">) {
-                </span><span class="jsdoc-comment">// it's a failure condition.
-                </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">response.argument</span><span class="jsdoc-syntax">;
-                </span><span class="jsdoc-var">this.fireEvent</span><span class="jsdoc-syntax">(</span><span class="jsdoc-string">&quot;loadexception&quot;</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">a.node</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">response</span><span class="jsdoc-syntax">);
-                </span><span class="jsdoc-var">Roo.log</span><span class="jsdoc-syntax">(</span><span class="jsdoc-string">&quot;Load failed - should have a handler really&quot;</span><span class="jsdoc-syntax">);
-                </span><span class="jsdoc-keyword">return</span><span class="jsdoc-syntax">;
-            }
-
-
-
-            </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.root </span><span class="jsdoc-syntax">!== </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">) {
-                 </span><span class="jsdoc-var">o </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">o</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">this.root</span><span class="jsdoc-syntax">];
-            }
-
-            </span><span class="jsdoc-keyword">for</span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">i </span><span class="jsdoc-syntax">= 0, </span><span class="jsdoc-var">len </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">o.length</span><span class="jsdoc-syntax">; </span><span class="jsdoc-var">i </span><span class="jsdoc-syntax">&lt; </span><span class="jsdoc-var">len</span><span class="jsdoc-syntax">; </span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">++){
-                </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">n </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">this.createNode</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">o</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">]);
-                </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">n</span><span class="jsdoc-syntax">){
-                    </span><span class="jsdoc-var">node.appendChild</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">n</span><span class="jsdoc-syntax">);
-                }
-            }
-            </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">typeof </span><span class="jsdoc-var">callback </span><span class="jsdoc-syntax">== </span><span class="jsdoc-string">&quot;function&quot;</span><span class="jsdoc-syntax">){
-                </span><span class="jsdoc-var">callback</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">node</span><span class="jsdoc-syntax">);
-            }
-        }</span><span class="jsdoc-keyword">catch</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">e</span><span class="jsdoc-syntax">){
-            </span><span class="jsdoc-var">this.handleFailure</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">response</span><span class="jsdoc-syntax">);
-        }
-    },
-
-    </span><span class="jsdoc-var">handleResponse </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">response</span><span class="jsdoc-syntax">){
-        </span><span class="jsdoc-var">this.transId </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">;
-        </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">response.argument</span><span class="jsdoc-syntax">;
-        </span><span class="jsdoc-var">this.processResponse</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">response</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">a.node</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">a.callback</span><span class="jsdoc-syntax">);
-        </span><span class="jsdoc-var">this.fireEvent</span><span class="jsdoc-syntax">(</span><span class="jsdoc-string">&quot;load&quot;</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">a.node</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">response</span><span class="jsdoc-syntax">);
-    },
-
-    </span><span class="jsdoc-var">handleFailure </span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">response</span><span class="jsdoc-syntax">)
-    {
-        </span><span class="jsdoc-comment">// should handle failure better..
-        </span><span class="jsdoc-var">this.transId </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">;
-        </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">response.argument</span><span class="jsdoc-syntax">;
-        </span><span class="jsdoc-var">this.fireEvent</span><span class="jsdoc-syntax">(</span><span class="jsdoc-string">&quot;loadexception&quot;</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">a.node</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">response</span><span class="jsdoc-syntax">);
-        </span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">typeof </span><span class="jsdoc-var">a.callback </span><span class="jsdoc-syntax">== </span><span class="jsdoc-string">&quot;function&quot;</span><span class="jsdoc-syntax">){
-            </span><span class="jsdoc-var">a.callback</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">a.node</span><span class="jsdoc-syntax">);
-        }
-    }
-});</span></code></body></html>
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