+For example to make a GridPanel a cooperating target with the example illustrated in
+{@link Ext.dd.DragZone DragZone}, the following technique might be used:
+
+ myGridPanel.on('render', function() {
+ myGridPanel.dropZone = new Ext.dd.DropZone(myGridPanel.getView().scroller, {
+
+ // If the mouse is over a grid row, return that node. This is
+ // provided as the "target" parameter in all "onNodeXXXX" node event handling functions
+ getTargetFromEvent: function(e) {
+ return e.getTarget(myGridPanel.getView().rowSelector);
+ },
+
+ // On entry into a target node, highlight that node.
+ onNodeEnter : function(target, dd, e, data){
+ Ext.fly(target).addCls('my-row-highlight-class');
+ },
+
+ // On exit from a target node, unhighlight that node.
+ onNodeOut : function(target, dd, e, data){
+ Ext.fly(target).removeCls('my-row-highlight-class');
+ },
+
+ // While over a target node, return the default drop allowed class which
+ // places a "tick" icon into the drag proxy.
+ onNodeOver : function(target, dd, e, data){
+ return Ext.dd.DropZone.prototype.dropAllowed;
+ },
+
+ // On node drop we can interrogate the target to find the underlying
+ // application object that is the real target of the dragged data.
+ // In this case, it is a Record in the GridPanel's Store.
+ // We can use the data set up by the DragZone's getDragData method to read
+ // any data we decided to attach in the DragZone's getDragData method.
+ onNodeDrop : function(target, dd, e, data){
+ var rowIndex = myGridPanel.getView().findRowIndex(target);
+ var r = myGridPanel.getStore().getAt(rowIndex);
+ Ext.Msg.alert('Drop gesture', 'Dropped Record id ' + data.draggedRecord.id +
+ ' on Record id ' + r.id);
+ return true;
+ }
+ });
+ }
+
+See the {@link Ext.dd.DragZone DragZone} documentation for details about building a DragZone which
+cooperates with this DropZone.
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