code: public void onUpdateCategoriesList(List<CmsCategoryBean> categoriesList, List<String> selectedCategories) {
  
          m_galleryDialog.getCategoriesTab().updateContentList(categoriesList, selectedCategories);
      }
docs: Will be triggered when categories list is sorted.<p>
  
  @param categoriesList the updated categories list
  @param selectedCategories the selected categories