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<pre class="prettyprint lang-js"><div id="cls-Ext.tree.TreeDragZone"></div>/**
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* @class Ext.tree.TreeDragZone
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* @extends Ext.dd.DragZone
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* @constructor
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* @param {String/HTMLElement/Element} tree The {@link Ext.tree.TreePanel} for which to enable dragging
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* @param {Object} config
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*/
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if(Ext.dd.DragZone){
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Ext.tree.TreeDragZone = function(tree, config){
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Ext.tree.TreeDragZone.superclass.constructor.call(this, tree.innerCt, config);
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<div id="prop-Ext.tree.TreeDragZone-tree"></div>/**
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* The TreePanel for this drag zone
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* @type Ext.tree.TreePanel
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* @property
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*/
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this.tree = tree;
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};
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Ext.extend(Ext.tree.TreeDragZone, Ext.dd.DragZone, {
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<div id="cfg-Ext.tree.TreeDragZone-ddGroup"></div>/**
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* @cfg {String} ddGroup
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* A named drag drop group to which this object belongs. If a group is specified, then this object will only
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* interact with other drag drop objects in the same group (defaults to 'TreeDD').
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*/
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ddGroup : "TreeDD",
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// private
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onBeforeDrag : function(data, e){
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var n = data.node;
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return n && n.draggable && !n.disabled;
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},
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// private
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onInitDrag : function(e){
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var data = this.dragData;
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this.tree.getSelectionModel().select(data.node);
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this.tree.eventModel.disable();
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this.proxy.update("");
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data.node.ui.appendDDGhost(this.proxy.ghost.dom);
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this.tree.fireEvent("startdrag", this.tree, data.node, e);
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},
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// private
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getRepairXY : function(e, data){
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return data.node.ui.getDDRepairXY();
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},
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// private
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onEndDrag : function(data, e){
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this.tree.eventModel.enable.defer(100, this.tree.eventModel);
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this.tree.fireEvent("enddrag", this.tree, data.node, e);
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},
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// private
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onValidDrop : function(dd, e, id){
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this.tree.fireEvent("dragdrop", this.tree, this.dragData.node, dd, e);
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this.hideProxy();
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},
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// private
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beforeInvalidDrop : function(e, id){
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// this scrolls the original position back into view
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var sm = this.tree.getSelectionModel();
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sm.clearSelections();
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sm.select(this.dragData.node);
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},
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// private
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afterRepair : function(){
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if (Ext.enableFx && this.tree.hlDrop) {
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Ext.Element.fly(this.dragData.ddel).highlight(this.hlColor || "c3daf9");
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}
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this.dragging = false;
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}
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});
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}</pre>
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