Drag-and-Drop Layout

[d1x]

Hello,

I would like to ask how to clearly implement custom drag and drop logic via SmartGWT. What I need to do is to move one Window (placed in Layout) over the other securing those two windows will swap. I thought i can secure this by setting canDropComponents(false) and canAcceptDrop(true) as written in the documentation.

The thing is that I still recieve DropOut and DropOver events but NOT DropOn event.

the code for swap

public static void swapWidgets(PerspectiveWidget w1, PerspectiveWidget w2) {
        Layout w1l = w1.getEnclosingLayout();
        Layout w2l = w2.getEnclosingLayout();
        w1l.removeMember(w1);
        w2l.removeMember(w2);
        w1l.addMember(w2);
        w2l.addMember(w1);
    }

setCanDropComponents(false);
setCanAcceptDrop(true);
setCanDrop(true);
setCanDragReposition(true);        
setCanDrag(true);

addDropHandler(new DropHandler() {

            @Override
            public void onDrop(DropEvent event) {
                com.google.gwt.user.client.Window.alert("drop!");
                // window.alert does even not trigger

                Canvas droppedCanvas = EventHandler.getDragTarget();
                if (droppedCanvas instanceof PerspectiveWidget) {
                    PerspectiveWidget pw = (PerspectiveWidget) droppedCanvas;
                    PerspectiveManager.swapWidgets(PerspectiveWidget.this, pw);
                }
            }
        });

addDropOverHandler(new DropOverHandler() {

            @Override
            public void onDropOver(DropOverEvent event) {
                enclosingLayout.setBackgroundColor("#FFFF88"); //this works            }
        });

Thanks a lot

[sbartosz]

Up! Here is a similar thread http://forums.smartclient.com/showthread.php?t=7782. Does anyone know the solution?:)