public static void makeDraggable (HasAllMouseHandlers dragHandle, PopupPanel target)
    {
        DragHandler dragger = new DragHandler(target);
        dragHandle.addMouseDownHandler(dragger);
        dragHandle.addMouseUpHandler(dragger);
        dragHandle.addMouseMoveHandler(dragger);
    }
public static void makeDraggable ( HasAllMouseHandlers dragHandle , PopupPanel target ) { DragHandler dragger = new DragHandler ( target ) ; dragHandle . addMouseDownHandler ( dragger ) ; dragHandle . addMouseUpHandler ( dragger ) ; dragHandle . addMouseMoveHandler ( dragger ) ; }
Adds mouse handlers to the specified drag handle that cause the supplied target popup to be
dragged around the display. The drag handle is assumed to be a child of the popup.