public void installDndSupport(ChangeListOwner owner) {
myDragOwner = owner;
myDropTarget = new DropTarget();
myDndManager = DnDManager.getInstance();
myDndManager.registerSource(this);
myDndManager.registerTarget(myDropTarget, this);
}
@Override
public void dispose() {
if (myDropTarget != null) {
myDndManager.unregisterSource(this);
myDndManager.unregisterTarget(myDropTarget, this);
myDropTarget = null;
myDndManager = null;
myDragOwner = null;
}
}