docs: public boolean eventTargetsPopup(Event nativeEvent) {
  
          if (m_overlay.eventTargetsPopup(nativeEvent)) {
              return true;
          }
  
          if (hasSubMenu()) {
              for (CmsContextMenuItemWidget item : m_subMenu.getMenuItems()) {
                  if (item.eventTargetsPopup(nativeEvent)) {
                      return true;
                  }
              }
          }
  
          return false;
      }