/*!
+ * Ext JS Library 3.3.0
+ * Copyright(c) 2006-2010 Ext JS, Inc.
+ * licensing@extjs.com
+ * http://www.extjs.com/license
+ */
+Ext.ns('Ext.ux.tree');
+
+/**
+ * @class Ext.ux.tree.XmlTreeLoader
+ * @extends Ext.tree.TreeLoader
+ * A TreeLoader that can convert an XML document into a hierarchy of {@link Ext.tree.TreeNode}s.
+ * Any text value included as a text node in the XML will be added to the parent node as an attribute
+ * called innerText. Also, the tag name of each XML node will be added to the tree node as
+ * an attribute called tagName.
+ * By default, this class expects that your source XML will provide the necessary attributes on each
+ * node as expected by the {@link Ext.tree.TreePanel} to display and load properly. However, you can
+ * provide your own custom processing of node attributes by overriding the {@link #processNode} method
+ * and modifying the attributes as needed before they are used to create the associated TreeNode.
+ * @constructor
+ * Creates a new XmlTreeloader.
+ * @param {Object} config A config object containing config properties.
+ */
+Ext.ux.tree.XmlTreeLoader = Ext.extend(Ext.tree.TreeLoader, {
+ /**
+ * @property XML_NODE_ELEMENT
+ * XML element node (value 1, read-only)
+ * @type Number
+ */
+ XML_NODE_ELEMENT : 1,
+ /**
+ * @property XML_NODE_TEXT
+ * XML text node (value 3, read-only)
+ * @type Number
+ */
+ XML_NODE_TEXT : 3,
+
+ // private override
+ processResponse : function(response, node, callback){
+ var xmlData = response.responseXML,
+ root = xmlData.documentElement || xmlData;
+
+ try{
+ node.beginUpdate();
+ node.appendChild(this.parseXml(root));
+ node.endUpdate();
+
+ this.runCallback(callback, scope || node, [node]);
+ }catch(e){
+ this.handleFailure(response);
+ }
+ },
+
+ // private
+ parseXml : function(node) {
+ var nodes = [];
+ Ext.each(node.childNodes, function(n){
+ if(n.nodeType == this.XML_NODE_ELEMENT){
+ var treeNode = this.createNode(n);
+ if(n.childNodes.length > 0){
+ var child = this.parseXml(n);
+ if(typeof child == 'string'){
+ treeNode.attributes.innerText = child;
+ }else{
+ treeNode.appendChild(child);
+ }
+ }
+ nodes.push(treeNode);
+ }
+ else if(n.nodeType == this.XML_NODE_TEXT){
+ var text = n.nodeValue.trim();
+ if(text.length > 0){
+ return nodes = text;
+ }
+ }
+ }, this);
+
+ return nodes;
+ },
+
+ // private override
+ createNode : function(node){
+ var attr = {
+ tagName: node.tagName
+ };
+
+ Ext.each(node.attributes, function(a){
+ attr[a.nodeName] = a.nodeValue;
+ });
+
+ this.processAttributes(attr);
+
+ return Ext.ux.tree.XmlTreeLoader.superclass.createNode.call(this, attr);
+ },
+
+ /*
+ * Template method intended to be overridden by subclasses that need to provide
+ * custom attribute processing prior to the creation of each TreeNode. This method
+ * will be passed a config object containing existing TreeNode attribute name/value
+ * pairs which can be modified as needed directly (no need to return the object).
+ */
+ processAttributes: Ext.emptyFn
+});
+
+//backwards compat
+Ext.ux.XmlTreeLoader = Ext.ux.tree.XmlTreeLoader;
+
+
+
\ No newline at end of file