code: protected boolean mouseUp(Element element, GqEvent event) {
  
      unbindOtherEvents();
      if (started) {
        started = false;
        preventClickEvent = event.getCurrentEventTarget() == startEvent.getCurrentEventTarget();
        mouseStop(element, event);
      }
  
      return true;
    }
docs: Method called when mouse is released..
  
  You should not override this method. Instead, override {@link #mouseStop(Element, GqEvent)}
  method.