public function CommentBreadcrumbBuilder::build in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/comment/src/CommentBreadcrumbBuilder.php \Drupal\comment\CommentBreadcrumbBuilder::build()

Builds the breadcrumb.

Parameters

\Drupal\Core\Routing\RouteMatchInterface $route_match: The current route match.

Return value

\Drupal\Core\Breadcrumb\Breadcrumb A breadcrumb.

Overrides BreadcrumbBuilderInterface::build

File

core/modules/comment/src/CommentBreadcrumbBuilder.php, line 45

Class

CommentBreadcrumbBuilder

Class to define the comment breadcrumb builder.

Namespace

Drupal\comment

Code

public function build(RouteMatchInterface $route_match) {
  $breadcrumb = new Breadcrumb();
  $breadcrumb
    ->addCacheContexts([
    'route',
  ]);
  $breadcrumb
    ->addLink(Link::createFromRoute($this
    ->t('Home'), '<front>'));
  $entity = $route_match
    ->getParameter('entity');
  $breadcrumb
    ->addLink(new Link($entity
    ->label(), $entity
    ->toUrl()));
  $breadcrumb
    ->addCacheableDependency($entity);
  if (($pid = $route_match
    ->getParameter('pid')) && ($comment = $this->storage
    ->load($pid))) {

    /** @var \Drupal\comment\CommentInterface $comment */
    $breadcrumb
      ->addCacheableDependency($comment);

    // Display link to parent comment.
    // @todo Clean-up permalink in https://www.drupal.org/node/2198041
    $breadcrumb
      ->addLink(new Link($comment
      ->getSubject(), $comment
      ->toUrl()));
  }
  return $breadcrumb;
}