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TreeEventModel.js
资源名称：ext-3.1.0.zip　[点击查看]
上传用户：dawnssy
上传日期：2022-08-06
资源大小：9345k
文件大小：5k
源码类别：

JavaScript

开发平台：

JavaScript

TreeEventModel.js：源码内容
  1. /*!  * Ext JS Library 3.1.0  * 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 t = this.tree;
  9.             
  10.         if(t.trackMouseOver !== false){
  11.             t.mon(t.innerCt, {
  12.                 scope: this,
  13.                 mouseover: this.delegateOver,
  14.                 mouseout: this.delegateOut
  15.             });
  16.         }
  17.         t.mon(t.getTreeEl(), {
  18.             scope: this,
  19.             click: this.delegateClick,
  20.             dblclick: this.delegateDblClick,
  21.             contextmenu: this.delegateContextMenu
  22.         });
  23.     },
  25.     getNode : function(e){
  26.         var t;
  27.         if(t = e.getTarget('.x-tree-node-el', 10)){
  28.             var id = Ext.fly(t, '_treeEvents').getAttribute('tree-node-id', 'ext');
  29.             if(id){
  30.                 return this.tree.getNodeById(id);
  31.             }
  32.         }
  33.         return null;
  34.     },
  36.     getNodeTarget : function(e){
  37.         var t = e.getTarget('.x-tree-node-icon', 1);
  38.         if(!t){
  39.             t = e.getTarget('.x-tree-node-el', 6);
  40.         }
  41.         return t;
  42.     },
  44.     delegateOut : function(e, t){
  45.         if(!this.beforeEvent(e)){
  46.             return;
  47.         }
  48.         if(e.getTarget('.x-tree-ec-icon', 1)){
  49.             var n = this.getNode(e);
  50.             this.onIconOut(e, n);
  51.             if(n == this.lastEcOver){
  52.                 delete this.lastEcOver;
  53.             }
  54.         }
  55.         if((t = this.getNodeTarget(e)) && !e.within(t, true)){
  56.             this.onNodeOut(e, this.getNode(e));
  57.         }
  58.     },
  60.     delegateOver : function(e, t){
  61.         if(!this.beforeEvent(e)){
  62.             return;
  63.         }
  64.         if(Ext.isGecko && !this.trackingDoc){ // prevent hanging in FF
  65.             Ext.getBody().on('mouseover', this.trackExit, this);
  66.             this.trackingDoc = true;
  67.         }
  68.         if(this.lastEcOver){ // prevent hung highlight
  69.             this.onIconOut(e, this.lastEcOver);
  70.             delete this.lastEcOver;
  71.         }
  72.         if(e.getTarget('.x-tree-ec-icon', 1)){
  73.             this.lastEcOver = this.getNode(e);
  74.             this.onIconOver(e, this.lastEcOver);
  75.         }
  76.         if(t = this.getNodeTarget(e)){
  77.             this.onNodeOver(e, this.getNode(e));
  78.         }
  79.     },
  81.     trackExit : function(e){
  82.         if(this.lastOverNode && !e.within(this.lastOverNode.ui.getEl())){
  83.             this.onNodeOut(e, this.lastOverNode);
  84.             delete this.lastOverNode;
  85.             Ext.getBody().un('mouseover', this.trackExit, this);
  86.             this.trackingDoc = false;
  87.         }
  88.     },
  90.     delegateClick : function(e, t){
  91.         if(this.beforeEvent(e)){
  92.             if(e.getTarget('input[type=checkbox]', 1)){
  93.                 this.onCheckboxClick(e, this.getNode(e));
  94.             }else if(e.getTarget('.x-tree-ec-icon', 1)){
  95.                 this.onIconClick(e, this.getNode(e));
  96.             }else if(this.getNodeTarget(e)){
  97.                 this.onNodeClick(e, this.getNode(e));
  98.             }else{
  99.                 this.onContainerEvent(e, 'click');
  100.             }
  101.         }
  102.     },
  104.     delegateDblClick : function(e, t){
  105.         if(this.beforeEvent(e)){
  106.             if(this.getNodeTarget(e)){
  107.                 this.onNodeDblClick(e, this.getNode(e));
  108.             }else{
  109.                 this.onContainerEvent(e, 'dblclick');    
  110.             }
  111.         }
  112.     },
  114.     delegateContextMenu : function(e, t){
  115.         if(this.beforeEvent(e)){
  116.             if(this.getNodeTarget(e)){
  117.                 this.onNodeContextMenu(e, this.getNode(e));
  118.             }else{
  119.                 this.onContainerEvent(e, 'contextmenu');    
  120.             }
  121.         }
  122.     },
  123.     
  124.     onContainerEvent: function(e, type){
  125.         this.tree.fireEvent('container' + type, this.tree, e); 
  126.     },
  128.     onNodeClick : function(e, node){
  129.         node.ui.onClick(e);
  130.     },
  132.     onNodeOver : function(e, node){
  133.         this.lastOverNode = node;
  134.         node.ui.onOver(e);
  135.     },
  137.     onNodeOut : function(e, node){
  138.         node.ui.onOut(e);
  139.     },
  141.     onIconOver : function(e, node){
  142.         node.ui.addClass('x-tree-ec-over');
  143.     },
  145.     onIconOut : function(e, node){
  146.         node.ui.removeClass('x-tree-ec-over');
  147.     },
  149.     onIconClick : function(e, node){
  150.         node.ui.ecClick(e);
  151.     },
  153.     onCheckboxClick : function(e, node){
  154.         node.ui.onCheckChange(e);
  155.     },
  157.     onNodeDblClick : function(e, node){
  158.         node.ui.onDblClick(e);
  159.     },
  161.     onNodeContextMenu : function(e, node){
  162.         node.ui.onContextMenu(e);
  163.     },
  165.     beforeEvent : function(e){
  166.         if(this.disabled){
  167.             e.stopEvent();
  168.             return false;
  169.         }
  170.         return true;
  171.     },
  173.     disable: function(){
  174.         this.disabled = true;
  175.     },
  177.     enable: function(){
  178.         this.disabled = false;
  179.     }
  180. };