docs: @Override
      public void show() {
  	boolean fireOpen = !isShowing();
  	super.show();
  
  	// adjust the size of the glass
  	if (isShowing()) {
  	    adjustGlassSize();
  	}
  
  	// fire the open event
  	if (fireOpen) {
  	    OpenEvent.fire(this, this);
  	}
      }