Mouse events are not working in gwt popup panel

Question

MouseUp and Mousedown events are not working for PopupPanel in GWT, but the same code is working for normal view in GWT.Is there any thing we need to do before writing mouse events on GWT PopupPanel.Kindly guide me as soon as possible.

Answer 1

                      popup.addMouseUpHandler(new MouseUpHandler()
            {
                public void onMouseUp(MouseUpEvent event)
                {

            popup.setPopupPositionAndShow(new PopupPanel.PositionCallback() 
             {
                  public void setPosition(int offsetWidth, int offsetHeight) 
                  {
                    int left = (Window.getClientWidth() - offsetWidth) / 24;
                    int top = (Window.getClientHeight() - offsetHeight) / 5;

                    popup.setPopupPosition(left, top);


                  }
            });
            }
            });

Answer 2

I've solved this problem for myself by calling "setModal(false)" on the popup panel that contains the DateBox widget.