DnD: Detect model in TreeGrid where mouse currently moves over

[MickeyMiner]

Hi,

In a TreeGrid I would like to enable or disable nodes of the tree depending on their properties.
How do I detect the model in the tree where my mouse currently moves over?

Thanx,

mm

TreeGridDropTarget<MyModel> target = new TreeGridDropTarget<MyModel>(grid);
        target.setAllowSelfAsSource(true);
        target.setAllowDropOnLeaf(false);
        target.setFeedback(DND.Feedback.BOTH);
        target.addDragMoveHandler(new DndDragMoveHandler() {
            @Override
            public void onDragMove(DndDragMoveEvent event) {
                MyModel m = .......  // TO DO please add code here
                Info.display("onDragMove()", m.toString());
                if (m.acceptsDrops()) {
                    event.getStatusProxy().setStatus(true);
                } else {
                    event.getStatusProxy().setStatus(false);
                }
            }
        });

[MickeyMiner]

Hi,

This solution works... but only partially...
If I drag an object between two nodes, the object can dropped over there... But I would like to prohibit dropping objects elsewhere but on a specific folder (setAllowDropOnLeaf() is not good enough)...

m.

TreeGridDropTarget<MyModel> target = new TreeGridDropTarget<MyModel>(grid);
target.setAllowSelfAsSource(true);         
target.setAllowDropOnLeaf(false);
target.setFeedback(DND.Feedback.BOTH);
target.addDragMoveHandler(new DndDragMoveHandler() {
    @Override
    public void onDragMove(DndDragMoveEvent event) {
       DragMoveEvent e = event.getDragMoveEvent();
       NativeEvent n = e.getNativeEvent();
       EventTarget et = n.getEventTarget();
       Element itemMovedOverElement = (Element) et.cast();
       MyModel m = grid.findNode(itemMovedOverElement).getModel();
       Info.display("onDragMove()", m.toString());                 
       if (m.acceptsDrops()) {
          event.getStatusProxy().setStatus(true);
       } else {
          event.getStatusProxy().setStatus(false);                 
       }
   }  
});