docs: protected void scheduleGalleryUpdate() {
  
          // only if not already scheduled
          if (m_galleryUpdateTimer == null) {
              m_galleryUpdateTimer = new Timer() {
  
                  @Override
                  public void run() {
  
                      m_galleryUpdateTimer = null;
                      updateGalleryData(false, null);
                  }
              };
              m_galleryUpdateTimer.schedule(50);
          }
      }