text: /*
   * Ext JS Library 2.2.1
   * Copyright(c) 2006-2009, Ext JS, LLC.
   * licensing@extjs.com
   * 
   * http://extjs.com/license
   */
  
  /**
   * @class Ext.grid.GridDragZone
   * @extends Ext.dd.DragZone
   * <p>A customized implementation of a {@link Ext.dd.DragZone DragZone} which provides default implementations of two of the
   * template methods of DragZone to enable dragging of the selected rows of a GridPanel.</p>
   * <p>A cooperating {@link Ext.dd.DropZone DropZone} must be created who's template method implementations of
   * {@link Ext.dd.DropZone#onNodeEnter onNodeEnter}, {@link Ext.dd.DropZone#onNodeOver onNodeOver},
   * {@link Ext.dd.DropZone#onNodeOut onNodeOut} and {@link Ext.dd.DropZone#onNodeDrop onNodeDrop}</p> are able
   * to process the {@link #getDragData data} which is provided.
   */
  Ext.grid.GridDragZone = function(grid, config){
      this.view = grid.getView();
      Ext.grid.GridDragZone.superclass.constructor.call(this, this.view.mainBody.dom, config);
      if(this.view.lockedBody){
          this.setHandleElId(Ext.id(this.view.mainBody.dom));
          this.setOuterHandleElId(Ext.id(this.view.lockedBody.dom));
      }
      this.scroll = false;
      this.grid = grid;
      this.ddel = document.createElement('div');
      this.ddel.className = 'x-grid-dd-wrap';
  };
  
  Ext.extend(Ext.grid.GridDragZone, Ext.dd.DragZone, {
      ddGroup : "GridDD",
  
      /**
       * <p>The provided implementation of the getDragData method which collects the data to be dragged from the GridPanel on mousedown.</p>
       * <p>This data is available for processing in the {@link Ext.dd.DropZone#onNodeEnter onNodeEnter}, {@link Ext.dd.DropZone#onNodeOver onNodeOver},
       * {@link Ext.dd.DropZone#onNodeOut onNodeOut} and {@link Ext.dd.DropZone#onNodeDrop onNodeDrop} methods of a cooperating {@link Ext.dd.DropZone DropZone}.</p>
       * <p>The data object contains the following properties:<ul>
       * <li><b>grid</b> : Ext.Grid.GridPanel<div class="sub-desc">The GridPanel from which the data is being dragged.</div></li>
       * <li><b>ddel</b> : htmlElement<div class="sub-desc">An htmlElement which provides the "picture" of the data being dragged.</div></li>
       * <li><b>rowIndex</b> : Number<div class="sub-desc">The index of the row which receieved the mousedown gesture which triggered the drag.</div></li>
       * <li><b>selections</b> : Array<div class="sub-desc">An Array of the selected Records which are being dragged from the GridPanel.</div></li>
       * </ul></p>
       */
      getDragData : function(e){
          var t = Ext.lib.Event.getTarget(e);
          var rowIndex = this.view.findRowIndex(t);
          if(rowIndex !== false){
              var sm = this.grid.selModel;
              if(!sm.isSelected(rowIndex) || e.hasModifier()){
                  sm.handleMouseDown(this.grid, rowIndex, e);
              }
              return {grid: this.grid, ddel: this.ddel, rowIndex: rowIndex, selections:sm.getSelections()};
          }
          return false;
      },
  
      /**
       * <p>The provided implementation of the onInitDrag method. Sets the <tt>innerHTML</tt> of the drag proxy which provides the "picture"
       * of the data being dragged.</p>
       * <p>The <tt>innerHTML</tt> data is found by calling the owning GridPanel's {@link Ext.grid.GridPanel#getDragDropText getDragDropText}.</p>
       */
      onInitDrag : function(e){
          var data = this.dragData;
          this.ddel.innerHTML = this.grid.getDragDropText();
          this.proxy.update(this.ddel);
          // fire start drag?
      },
  
      /**
       * An empty immplementation. Implement this to provide behaviour after a repair of an invalid drop. An implementation might highlight
       * the selected rows to show that they have not been dragged.
       */
      afterRepair : function(){
          this.dragging = false;
      },
  
      /**
       * <p>An empty implementation. Implement this to provide coordinates for the drag proxy to slide back to after an invalid drop.</p>
       * <p>Called before a repair of an invalid drop to get the XY to animate to.</p>
       * @param {EventObject} e The mouse up event
       * @return {Array} The xy location (e.g. [100, 200])
       */
      getRepairXY : function(e, data){
          return false;
      },
  
      onEndDrag : function(data, e){
          // fire end drag?
      },
  
      onValidDrop : function(dd, e, id){
          // fire drag drop?
          this.hideProxy();
      },
  
      beforeInvalidDrop : function(e, id){
  
      }
  });
  