docs: protected void quickSearch() {
  
          List<CmsTreeItem> categories = new ArrayList<CmsTreeItem>();
          if ((m_quickSearch != null)) {
              categories = getFilteredCategories(hasQuickFilter() ? m_quickSearch.getFormValueAsString() : null);
              sort(categories, SortParams.valueOf(m_sortSelectBox.getFormValueAsString()));
          }
      }