function layout_builder_system_breadcrumb_alter in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/layout_builder/layout_builder.module \layout_builder_system_breadcrumb_alter()
2. 10 core/modules/layout_builder/layout_builder.module \layout_builder_system_breadcrumb_alter()

Implements hook_system_breadcrumb_alter().

File

core/modules/layout_builder/layout_builder.module, line 334

Provides hook implementations for Layout Builder.

Code

function layout_builder_system_breadcrumb_alter(Breadcrumb &$breadcrumb, RouteMatchInterface $route_match, array $context) {

  // Remove the extra 'Manage display' breadcrumb for Layout Builder defaults.
  if ($route_match
    ->getRouteObject()
    ->hasOption('_layout_builder') && $route_match
    ->getParameter('section_storage_type') === 'defaults') {
    $links = array_filter($breadcrumb
      ->getLinks(), function (Link $link) use ($route_match) {
      $entity_type_id = $route_match
        ->getParameter('entity_type_id');
      return $link
        ->getUrl()
        ->getRouteName() !== "entity.entity_view_display.{$entity_type_id}.default";
    });

    // Links cannot be removed from an existing breadcrumb object. Create a new
    // object but carry over the cacheable metadata.
    $cacheability = CacheableMetadata::createFromObject($breadcrumb);
    $breadcrumb = new Breadcrumb();
    $breadcrumb
      ->setLinks($links);
    $breadcrumb
      ->addCacheableDependency($cacheability);
  }
}