docs/source/TreeDragZone.html

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   4   <title>The source code</title>\r
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   9     <pre class="prettyprint lang-js"><div id="cls-Ext.tree.TreeDragZone"></div>/**\r
  10  * @class Ext.tree.TreeDragZone\r
  11  * @extends Ext.dd.DragZone\r
  12  * @constructor\r
  13  * @param {String/HTMLElement/Element} tree The {@link Ext.tree.TreePanel} for which to enable dragging\r
  14  * @param {Object} config\r
  15  */\r
  16 if(Ext.dd.DragZone){\r
  17 Ext.tree.TreeDragZone = function(tree, config){\r
  18     Ext.tree.TreeDragZone.superclass.constructor.call(this, tree.innerCt, config);\r
  19     <div id="prop-Ext.tree.TreeDragZone-tree"></div>/**\r
  20     * The TreePanel for this drag zone\r
  21     * @type Ext.tree.TreePanel\r
  22     * @property\r
  23     */\r
  24     this.tree = tree;\r
  25 };\r
  26 \r
  27 Ext.extend(Ext.tree.TreeDragZone, Ext.dd.DragZone, {\r
  28     <div id="cfg-Ext.tree.TreeDragZone-ddGroup"></div>/**\r
  29      * @cfg {String} ddGroup\r
  30      * A named drag drop group to which this object belongs.  If a group is specified, then this object will only\r
  31      * interact with other drag drop objects in the same group (defaults to 'TreeDD').\r
  32      */\r
  33     ddGroup : "TreeDD",\r
  34 \r
  35     // private\r
  36     onBeforeDrag : function(data, e){\r
  37         var n = data.node;\r
  38         return n && n.draggable && !n.disabled;\r
  39     },\r
  40 \r
  41     // private\r
  42     onInitDrag : function(e){\r
  43         var data = this.dragData;\r
  44         this.tree.getSelectionModel().select(data.node);\r
  45         this.tree.eventModel.disable();\r
  46         this.proxy.update("");\r
  47         data.node.ui.appendDDGhost(this.proxy.ghost.dom);\r
  48         this.tree.fireEvent("startdrag", this.tree, data.node, e);\r
  49     },\r
  50 \r
  51     // private\r
  52     getRepairXY : function(e, data){\r
  53         return data.node.ui.getDDRepairXY();\r
  54     },\r
  55 \r
  56     // private\r
  57     onEndDrag : function(data, e){\r
  58         this.tree.eventModel.enable.defer(100, this.tree.eventModel);\r
  59         this.tree.fireEvent("enddrag", this.tree, data.node, e);\r
  60     },\r
  61 \r
  62     // private\r
  63     onValidDrop : function(dd, e, id){\r
  64         this.tree.fireEvent("dragdrop", this.tree, this.dragData.node, dd, e);\r
  65         this.hideProxy();\r
  66     },\r
  67 \r
  68     // private\r
  69     beforeInvalidDrop : function(e, id){\r
  70         // this scrolls the original position back into view\r
  71         var sm = this.tree.getSelectionModel();\r
  72         sm.clearSelections();\r
  73         sm.select(this.dragData.node);\r
  74     },\r
  75     \r
  76     // private\r
  77     afterRepair : function(){\r
  78         if (Ext.enableFx && this.tree.hlDrop) {\r
  79             Ext.Element.fly(this.dragData.ddel).highlight(this.hlColor || "c3daf9");\r
  80         }\r
  81         this.dragging = false;\r
  82     }\r
  83 });\r
  84 }</pre>    \r
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