--- /dev/null
+<html>\r
+<head>\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
+</head>\r
+<body onload="prettyPrint();">\r
+ <pre class="prettyprint lang-js"><div id="cls-Ext.tree.TreeSorter"></div>/**\r
+ * @class Ext.tree.TreeSorter\r
+ * Provides sorting of nodes in a {@link Ext.tree.TreePanel}. The TreeSorter automatically monitors events on the \r
+ * associated TreePanel that might affect the tree's sort order (beforechildrenrendered, append, insert and textchange).\r
+ * Example usage:<br />\r
+ * <pre><code>\r
+new Ext.tree.TreeSorter(myTree, {\r
+ folderSort: true,\r
+ dir: "desc",\r
+ sortType: function(node) {\r
+ // sort by a custom, typed attribute:\r
+ return parseInt(node.id, 10);\r
+ }\r
+});\r
+</code></pre>\r
+ * @constructor\r
+ * @param {TreePanel} tree\r
+ * @param {Object} config\r
+ */\r
+Ext.tree.TreeSorter = function(tree, config){\r
+ <div id="cfg-Ext.tree.TreeSorter-folderSort"></div>/**\r
+ * @cfg {Boolean} folderSort True to sort leaf nodes under non-leaf nodes (defaults to false)\r
+ */\r
+ <div id="cfg-Ext.tree.TreeSorter-property"></div>/** \r
+ * @cfg {String} property The named attribute on the node to sort by (defaults to "text"). Note that this \r
+ * property is only used if no {@link #sortType} function is specified, otherwise it is ignored.\r
+ */\r
+ <div id="cfg-Ext.tree.TreeSorter-dir"></div>/** \r
+ * @cfg {String} dir The direction to sort ("asc" or "desc," case-insensitive, defaults to "asc")\r
+ */\r
+ <div id="cfg-Ext.tree.TreeSorter-leafAttr"></div>/** \r
+ * @cfg {String} leafAttr The attribute used to determine leaf nodes when {@link #folderSort} = true (defaults to "leaf")\r
+ */\r
+ <div id="cfg-Ext.tree.TreeSorter-caseSensitive"></div>/** \r
+ * @cfg {Boolean} caseSensitive true for case-sensitive sort (defaults to false)\r
+ */\r
+ <div id="cfg-Ext.tree.TreeSorter-sortType"></div>/** \r
+ * @cfg {Function} sortType A custom "casting" function used to convert node values before sorting. The function\r
+ * will be called with a single parameter (the {@link Ext.tree.TreeNode} being evaluated) and is expected to return\r
+ * the node's sort value cast to the specific data type required for sorting. This could be used, for example, when\r
+ * a node's text (or other attribute) should be sorted as a date or numeric value. See the class description for \r
+ * example usage. Note that if a sortType is specified, any {@link #property} config will be ignored.\r
+ */\r
+ \r
+ Ext.apply(this, config);\r
+ tree.on("beforechildrenrendered", this.doSort, this);\r
+ tree.on("append", this.updateSort, this);\r
+ tree.on("insert", this.updateSort, this);\r
+ tree.on("textchange", this.updateSortParent, this);\r
+ \r
+ var dsc = this.dir && this.dir.toLowerCase() == "desc";\r
+ var p = this.property || "text";\r
+ var sortType = this.sortType;\r
+ var fs = this.folderSort;\r
+ var cs = this.caseSensitive === true;\r
+ var leafAttr = this.leafAttr || 'leaf';\r
+\r
+ this.sortFn = function(n1, n2){\r
+ if(fs){\r
+ if(n1.attributes[leafAttr] && !n2.attributes[leafAttr]){\r
+ return 1;\r
+ }\r
+ if(!n1.attributes[leafAttr] && n2.attributes[leafAttr]){\r
+ return -1;\r
+ }\r
+ }\r
+ var v1 = sortType ? sortType(n1) : (cs ? n1.attributes[p] : n1.attributes[p].toUpperCase());\r
+ var v2 = sortType ? sortType(n2) : (cs ? n2.attributes[p] : n2.attributes[p].toUpperCase());\r
+ if(v1 < v2){\r
+ return dsc ? +1 : -1;\r
+ }else if(v1 > v2){\r
+ return dsc ? -1 : +1;\r
+ }else{\r
+ return 0;\r
+ }\r
+ };\r
+};\r
+\r
+Ext.tree.TreeSorter.prototype = {\r
+ doSort : function(node){\r
+ node.sort(this.sortFn);\r
+ },\r
+ \r
+ compareNodes : function(n1, n2){\r
+ return (n1.text.toUpperCase() > n2.text.toUpperCase() ? 1 : -1);\r
+ },\r
+ \r
+ updateSort : function(tree, node){\r
+ if(node.childrenRendered){\r
+ this.doSort.defer(1, this, [node]);\r
+ }\r
+ },\r
+ \r
+ updateSortParent : function(node){\r
+ var p = node.parentNode;\r
+ if(p && p.childrenRendered){\r
+ this.doSort.defer(1, this, [p]);\r
+ }\r
+ }\r
+};</pre> \r
+</body>\r
+</html>
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