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-
-
-
- The source code
-
-
-
-
- /*!
- * Ext JS Library 3.3.0
- * Copyright(c) 2006-2010 Ext JS, Inc.
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
-/**
- * @class Ext.tree.TreeSorter
- * Provides sorting of nodes in a {@link Ext.tree.TreePanel}. The TreeSorter automatically monitors events on the
- * associated TreePanel that might affect the tree's sort order (beforechildrenrendered, append, insert and textchange).
- * Example usage:
- *
-new Ext.tree.TreeSorter(myTree, {
- folderSort: true,
- dir: "desc",
- sortType: function(node) {
- // sort by a custom, typed attribute:
- return parseInt(node.id, 10);
- }
-});
-
- * @constructor
- * @param {TreePanel} tree
- * @param {Object} config
- */
-Ext.tree.TreeSorter = Ext.extend(Object, {
-
- constructor: function(tree, config){
- /**
- * @cfg {Boolean} folderSort True to sort leaf nodes under non-leaf nodes (defaults to false)
- */
- /**
- * @cfg {String} property The named attribute on the node to sort by (defaults to "text"). Note that this
- * property is only used if no {@link #sortType} function is specified, otherwise it is ignored.
- */
- /**
- * @cfg {String} dir The direction to sort ("asc" or "desc," case-insensitive, defaults to "asc")
- */
- /**
- * @cfg {String} leafAttr The attribute used to determine leaf nodes when {@link #folderSort} = true (defaults to "leaf")
- */
- /**
- * @cfg {Boolean} caseSensitive true for case-sensitive sort (defaults to false)
- */
- /**
- * @cfg {Function} sortType A custom "casting" function used to convert node values before sorting. The function
- * will be called with a single parameter (the {@link Ext.tree.TreeNode} being evaluated) and is expected to return
- * the node's sort value cast to the specific data type required for sorting. This could be used, for example, when
- * a node's text (or other attribute) should be sorted as a date or numeric value. See the class description for
- * example usage. Note that if a sortType is specified, any {@link #property} config will be ignored.
- */
-
- Ext.apply(this, config);
- tree.on({
- scope: this,
- beforechildrenrendered: this.doSort,
- append: this.updateSort,
- insert: this.updateSort,
- textchange: this.updateSortParent
- });
-
- var desc = this.dir && this.dir.toLowerCase() == 'desc',
- prop = this.property || 'text';
- sortType = this.sortType;
- folderSort = this.folderSort;
- caseSensitive = this.caseSensitive === true;
- leafAttr = this.leafAttr || 'leaf';
-
- if(Ext.isString(sortType)){
- sortType = Ext.data.SortTypes[sortType];
- }
- this.sortFn = function(n1, n2){
- var attr1 = n1.attributes,
- attr2 = n2.attributes;
-
- if(folderSort){
- if(attr1[leafAttr] && !attr2[leafAttr]){
- return 1;
- }
- if(!attr1[leafAttr] && attr2[leafAttr]){
- return -1;
- }
- }
- var prop1 = attr1[prop],
- prop2 = attr2[prop],
- v1 = sortType ? sortType(prop1) : (caseSensitive ? prop1 : prop1.toUpperCase());
- v2 = sortType ? sortType(prop2) : (caseSensitive ? prop2 : prop2.toUpperCase());
-
- if(v1 < v2){
- return desc ? 1 : -1;
- }else if(v1 > v2){
- return desc ? -1 : 1;
- }
- return 0;
- };
- },
-
- doSort : function(node){
- node.sort(this.sortFn);
- },
-
- updateSort : function(tree, node){
- if(node.childrenRendered){
- this.doSort.defer(1, this, [node]);
- }
- },
-
- updateSortParent : function(node){
- var p = node.parentNode;
- if(p && p.childrenRendered){
- this.doSort.defer(1, this, [p]);
- }
- }
-});
-
-
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