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TreeEventModel.js
资源名称：ext-3.0.0.zip　[点击查看]
上传用户：shuoshiled
上传日期：2018-01-28
资源大小：10124k
文件大小：5k
源码类别：

中间件编程

开发平台：

JavaScript

TreeEventModel.js：源码内容
  1. /*!  * Ext JS Library 3.0.0  * Copyright(c) 2006-2009 Ext JS, LLC  * licensing@extjs.com  * http://www.extjs.com/license  */ Ext.tree.TreeEventModel = function(tree){
  2.     this.tree = tree;
  3.     this.tree.on('render', this.initEvents, this);
  4. }
  6. Ext.tree.TreeEventModel.prototype = {
  7.     initEvents : function(){
  8.         var el = this.tree.getTreeEl();
  9.         el.on('click', this.delegateClick, this);
  10.         if(this.tree.trackMouseOver !== false){
  11.             this.tree.innerCt.on('mouseover', this.delegateOver, this);
  12.             this.tree.innerCt.on('mouseout', this.delegateOut, this);
  13.         }
  14.         el.on('dblclick', this.delegateDblClick, this);
  15.         el.on('contextmenu', this.delegateContextMenu, this);
  16.     },
  18.     getNode : function(e){
  19.         var t;
  20.         if(t = e.getTarget('.x-tree-node-el', 10)){
  21.             var id = Ext.fly(t, '_treeEvents').getAttribute('tree-node-id', 'ext');
  22.             if(id){
  23.                 return this.tree.getNodeById(id);
  24.             }
  25.         }
  26.         return null;
  27.     },
  29.     getNodeTarget : function(e){
  30.         var t = e.getTarget('.x-tree-node-icon', 1);
  31.         if(!t){
  32.             t = e.getTarget('.x-tree-node-el', 6);
  33.         }
  34.         return t;
  35.     },
  37.     delegateOut : function(e, t){
  38.         if(!this.beforeEvent(e)){
  39.             return;
  40.         }
  41.         if(e.getTarget('.x-tree-ec-icon', 1)){
  42.             var n = this.getNode(e);
  43.             this.onIconOut(e, n);
  44.             if(n == this.lastEcOver){
  45.                 delete this.lastEcOver;
  46.             }
  47.         }
  48.         if((t = this.getNodeTarget(e)) && !e.within(t, true)){
  49.             this.onNodeOut(e, this.getNode(e));
  50.         }
  51.     },
  53.     delegateOver : function(e, t){
  54.         if(!this.beforeEvent(e)){
  55.             return;
  56.         }
  57.         if(Ext.isGecko && !this.trackingDoc){ // prevent hanging in FF
  58.             Ext.getBody().on('mouseover', this.trackExit, this);
  59.             this.trackingDoc = true;
  60.         }
  61.         if(this.lastEcOver){ // prevent hung highlight
  62.             this.onIconOut(e, this.lastEcOver);
  63.             delete this.lastEcOver;
  64.         }
  65.         if(e.getTarget('.x-tree-ec-icon', 1)){
  66.             this.lastEcOver = this.getNode(e);
  67.             this.onIconOver(e, this.lastEcOver);
  68.         }
  69.         if(t = this.getNodeTarget(e)){
  70.             this.onNodeOver(e, this.getNode(e));
  71.         }
  72.     },
  74.     trackExit : function(e){
  75.         if(this.lastOverNode && !e.within(this.lastOverNode.ui.getEl())){
  76.             this.onNodeOut(e, this.lastOverNode);
  77.             delete this.lastOverNode;
  78.             Ext.getBody().un('mouseover', this.trackExit, this);
  79.             this.trackingDoc = false;
  80.         }
  81.     },
  83.     delegateClick : function(e, t){
  84.         if(!this.beforeEvent(e)){
  85.             return;
  86.         }
  88.         if(e.getTarget('input[type=checkbox]', 1)){
  89.             this.onCheckboxClick(e, this.getNode(e));
  90.         }
  91.         else if(e.getTarget('.x-tree-ec-icon', 1)){
  92.             this.onIconClick(e, this.getNode(e));
  93.         }
  94.         else if(this.getNodeTarget(e)){
  95.             this.onNodeClick(e, this.getNode(e));
  96.         }
  97.     },
  99.     delegateDblClick : function(e, t){
  100.         if(this.beforeEvent(e) && this.getNodeTarget(e)){
  101.             this.onNodeDblClick(e, this.getNode(e));
  102.         }
  103.     },
  105.     delegateContextMenu : function(e, t){
  106.         if(this.beforeEvent(e) && this.getNodeTarget(e)){
  107.             this.onNodeContextMenu(e, this.getNode(e));
  108.         }
  109.     },
  111.     onNodeClick : function(e, node){
  112.         node.ui.onClick(e);
  113.     },
  115.     onNodeOver : function(e, node){
  116.         this.lastOverNode = node;
  117.         node.ui.onOver(e);
  118.     },
  120.     onNodeOut : function(e, node){
  121.         node.ui.onOut(e);
  122.     },
  124.     onIconOver : function(e, node){
  125.         node.ui.addClass('x-tree-ec-over');
  126.     },
  128.     onIconOut : function(e, node){
  129.         node.ui.removeClass('x-tree-ec-over');
  130.     },
  132.     onIconClick : function(e, node){
  133.         node.ui.ecClick(e);
  134.     },
  136.     onCheckboxClick : function(e, node){
  137.         node.ui.onCheckChange(e);
  138.     },
  140.     onNodeDblClick : function(e, node){
  141.         node.ui.onDblClick(e);
  142.     },
  144.     onNodeContextMenu : function(e, node){
  145.         node.ui.onContextMenu(e);
  146.     },
  148.     beforeEvent : function(e){
  149.         if(this.disabled){
  150.             e.stopEvent();
  151.             return false;
  152.         }
  153.         return true;
  154.     },
  156.     disable: function(){
  157.         this.disabled = true;
  158.     },
  160.     enable: function(){
  161.         this.disabled = false;
  162.     }
  163. };