docs: private boolean isOptionbarIFrameCollision(int optionTop, int optionWidth) {
  
          if (RootPanel.getBodyElement().isOrHasChild(getElement())) {
              NodeList<Element> frames = getElement().getElementsByTagName(CmsDomUtil.Tag.iframe.name());
              for (int i = 0; i < frames.getLength(); i++) {
                  int frameTop = frames.getItem(i).getAbsoluteTop();
                  int frameHeight = frames.getItem(i).getOffsetHeight();
                  int frameRight = frames.getItem(i).getAbsoluteRight();
                  if (((frameTop - optionTop) < 25)
                      && (((frameTop + frameHeight) - optionTop) > 0)
                      && ((frameRight - getElement().getAbsoluteRight()) < optionWidth)) {
                      return true;
                  }
  
              }
          }
          return false;
      }