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- <title>The source code</title>
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- <pre class="prettyprint lang-js">/*!
- * Ext JS Library 3.3.1
- * Copyright(c) 2006-2010 Sencha Inc.
- * licensing@sencha.com
- * http://www.sencha.com/license
- */
-<div id="cls-Ext.grid.GridDragZone"></div>/**
- * @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);
- 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",
-
- <div id="method-Ext.grid.GridDragZone-getDragData"></div>/**
- * <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;
- },
-
- <div id="method-Ext.grid.GridDragZone-onInitDrag"></div>/**
- * <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?
- },
-
- <div id="method-Ext.grid.GridDragZone-afterRepair"></div>/**
- * 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;
- },
-
- <div id="method-Ext.grid.GridDragZone-getRepairXY"></div>/**
- * <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){
-
- }
-});
-</pre>
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