public function injectValidContentInfoItems(FilterViewParametersEvent $event)
 {
     $view = $event->getView();
     if ($view instanceof BlockView && $this->pageService instanceof CoreBundlePageService) {
         $event->getParameterBag()->set('valid_contentinfo_items', $this->pageService->getValidBlockItemsAsContentInfo($view->getBlock()));
     }
 }