This class provides a container DD instance that allows dropping on multiple child target nodes.
- *By default, this class requires that child nodes accepting drop are registered with {@link Ext.dd.Registry}. - * However a simpler way to allow a DropZone to manage any number of target elements is to configure the - * DropZone with an implementation of {@link #getTargetFromEvent} which interrogates the passed - * mouse event to see if it has taken place within an element, or class of elements. This is easily done - * by using the event's {@link Ext.EventObject#getTarget getTarget} method to identify a node based on a - * {@link Ext.DomQuery} selector.
- *Once the DropZone has detected through calling getTargetFromEvent, that the mouse is over - * a drop target, that target is passed as the first parameter to {@link #onNodeEnter}, {@link #onNodeOver}, - * {@link #onNodeOut}, {@link #onNodeDrop}. You may configure the instance of DropZone with implementations - * of these methods to provide application-specific behaviour for these events to update both - * application state, and UI state.
- *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).addClass('my-row-highlight-class');
- },
-
-// On exit from a target node, unhighlight that node.
- onNodeOut : function(target, dd, e, data){
- Ext.fly(target).removeClass('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;
- }
- });
-}
-This class provides a container DD instance that allows dropping on multiple child target nodes.
+ *By default, this class requires that child nodes accepting drop are registered with {@link Ext.dd.Registry}. + * However a simpler way to allow a DropZone to manage any number of target elements is to configure the + * DropZone with an implementation of {@link #getTargetFromEvent} which interrogates the passed + * mouse event to see if it has taken place within an element, or class of elements. This is easily done + * by using the event's {@link Ext.EventObject#getTarget getTarget} method to identify a node based on a + * {@link Ext.DomQuery} selector.
+ *Once the DropZone has detected through calling getTargetFromEvent, that the mouse is over + * a drop target, that target is passed as the first parameter to {@link #onNodeEnter}, {@link #onNodeOver}, + * {@link #onNodeOut}, {@link #onNodeDrop}. You may configure the instance of DropZone with implementations + * of these methods to provide application-specific behaviour for these events to update both + * application state, and UI state.
+ *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).addClass('my-row-highlight-class');
+ },
+
+// On exit from a target node, unhighlight that node.
+ onNodeOut : function(target, dd, e, data){
+ Ext.fly(target).removeClass('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;
+ }
+ });
+}
+