[76] | 1 | /*! |
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| 2 | * Ext JS Library 3.4.0 |
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| 3 | * Copyright(c) 2006-2011 Sencha Inc. |
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| 4 | * licensing@sencha.com |
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| 5 | * http://www.sencha.com/license |
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| 6 | */ |
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| 7 | /** |
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| 8 | * @class Ext.tree.TreeSorter |
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| 9 | * Provides sorting of nodes in a {@link Ext.tree.TreePanel}. The TreeSorter automatically monitors events on the |
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| 10 | * associated TreePanel that might affect the tree's sort order (beforechildrenrendered, append, insert and textchange). |
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| 11 | * Example usage:<br /> |
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| 12 | * <pre><code> |
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| 13 | new Ext.tree.TreeSorter(myTree, { |
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| 14 | folderSort: true, |
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| 15 | dir: "desc", |
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| 16 | sortType: function(node) { |
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| 17 | // sort by a custom, typed attribute: |
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| 18 | return parseInt(node.id, 10); |
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| 19 | } |
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| 20 | }); |
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| 21 | </code></pre> |
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| 22 | * @constructor |
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| 23 | * @param {TreePanel} tree |
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| 24 | * @param {Object} config |
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| 25 | */ |
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| 26 | Ext.tree.TreeSorter = Ext.extend(Object, { |
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| 27 | |
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| 28 | constructor: function(tree, config){ |
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| 29 | /** |
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| 30 | * @cfg {Boolean} folderSort True to sort leaf nodes under non-leaf nodes (defaults to false) |
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| 31 | */ |
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| 32 | /** |
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| 33 | * @cfg {String} property The named attribute on the node to sort by (defaults to "text"). Note that this |
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| 34 | * property is only used if no {@link #sortType} function is specified, otherwise it is ignored. |
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| 35 | */ |
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| 36 | /** |
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| 37 | * @cfg {String} dir The direction to sort ("asc" or "desc," case-insensitive, defaults to "asc") |
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| 38 | */ |
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| 39 | /** |
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| 40 | * @cfg {String} leafAttr The attribute used to determine leaf nodes when {@link #folderSort} = true (defaults to "leaf") |
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| 41 | */ |
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| 42 | /** |
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| 43 | * @cfg {Boolean} caseSensitive true for case-sensitive sort (defaults to false) |
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| 44 | */ |
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| 45 | /** |
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| 46 | * @cfg {Function} sortType A custom "casting" function used to convert node values before sorting. The function |
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| 47 | * will be called with a single parameter (the {@link Ext.tree.TreeNode} being evaluated) and is expected to return |
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| 48 | * the node's sort value cast to the specific data type required for sorting. This could be used, for example, when |
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| 49 | * a node's text (or other attribute) should be sorted as a date or numeric value. See the class description for |
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| 50 | * example usage. Note that if a sortType is specified, any {@link #property} config will be ignored. |
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| 51 | */ |
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| 52 | |
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| 53 | Ext.apply(this, config); |
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| 54 | tree.on({ |
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| 55 | scope: this, |
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| 56 | beforechildrenrendered: this.doSort, |
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| 57 | append: this.updateSort, |
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| 58 | insert: this.updateSort, |
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| 59 | textchange: this.updateSortParent |
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| 60 | }); |
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| 61 | |
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| 62 | var desc = this.dir && this.dir.toLowerCase() == 'desc', |
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| 63 | prop = this.property || 'text', |
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| 64 | sortType = this.sortType, |
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| 65 | folderSort = this.folderSort, |
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| 66 | caseSensitive = this.caseSensitive === true, |
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| 67 | leafAttr = this.leafAttr || 'leaf'; |
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| 68 | |
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| 69 | if(Ext.isString(sortType)){ |
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| 70 | sortType = Ext.data.SortTypes[sortType]; |
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| 71 | } |
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| 72 | this.sortFn = function(n1, n2){ |
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| 73 | var attr1 = n1.attributes, |
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| 74 | attr2 = n2.attributes; |
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| 75 | |
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| 76 | if(folderSort){ |
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| 77 | if(attr1[leafAttr] && !attr2[leafAttr]){ |
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| 78 | return 1; |
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| 79 | } |
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| 80 | if(!attr1[leafAttr] && attr2[leafAttr]){ |
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| 81 | return -1; |
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| 82 | } |
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| 83 | } |
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| 84 | var prop1 = attr1[prop], |
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| 85 | prop2 = attr2[prop], |
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| 86 | v1 = sortType ? sortType(prop1) : (caseSensitive ? prop1 : prop1.toUpperCase()), |
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| 87 | v2 = sortType ? sortType(prop2) : (caseSensitive ? prop2 : prop2.toUpperCase()); |
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| 88 | |
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| 89 | if(v1 < v2){ |
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| 90 | return desc ? 1 : -1; |
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| 91 | }else if(v1 > v2){ |
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| 92 | return desc ? -1 : 1; |
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| 93 | } |
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| 94 | return 0; |
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| 95 | }; |
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| 96 | }, |
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| 97 | |
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| 98 | doSort : function(node){ |
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| 99 | node.sort(this.sortFn); |
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| 100 | }, |
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| 101 | |
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| 102 | updateSort : function(tree, node){ |
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| 103 | if(node.childrenRendered){ |
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| 104 | this.doSort.defer(1, this, [node]); |
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| 105 | } |
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| 106 | }, |
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| 107 | |
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| 108 | updateSortParent : function(node){ |
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| 109 | var p = node.parentNode; |
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| 110 | if(p && p.childrenRendered){ |
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| 111 | this.doSort.defer(1, this, [p]); |
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| 112 | } |
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| 113 | } |
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| 114 | }); |
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