/**
  * @return void
  */
 public function show_selected_languages()
 {
     $menu_items = $this->data->get_ajax_menu_items();
     if (empty($menu_items)) {
         wp_send_json_error();
     }
     // Needed for the walker.
     require_once ABSPATH . 'wp-admin/includes/nav-menu.php';
     $data = walk_nav_menu_tree($menu_items, 0, (object) array('after' => '', 'before' => '', 'link_after' => '', 'link_before' => '', 'walker' => new Walker_Nav_Menu_Edit()));
     wp_send_json_success($data);
 }
 /**
  * @return void
  */
 public function show_selected_languages()
 {
     $menu_items = $this->data->get_ajax_menu_items();
     if (empty($menu_items)) {
         die(-1);
     }
     // Needed for the walker
     require_once ABSPATH . 'wp-admin/includes/nav-menu.php';
     $args = array('after' => '', 'before' => '', 'link_after' => '', 'link_before' => '', 'walker' => new Walker_Nav_Menu_Edit());
     echo walk_nav_menu_tree($menu_items, 0, (object) $args);
     exit;
 }