Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\system\Plugin\Block;
Chris@0: 
Chris@0: use Drupal\Core\Block\BlockBase;
Chris@0: use Drupal\Core\Breadcrumb\BreadcrumbBuilderInterface;
Chris@0: use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
Chris@0: use Drupal\Core\Routing\RouteMatchInterface;
Chris@0: use Symfony\Component\DependencyInjection\ContainerInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Provides a block to display the breadcrumbs.
Chris@0:  *
Chris@0:  * @Block(
Chris@0:  *   id = "system_breadcrumb_block",
Chris@0:  *   admin_label = @Translation("Breadcrumbs")
Chris@0:  * )
Chris@0:  */
Chris@0: class SystemBreadcrumbBlock extends BlockBase implements ContainerFactoryPluginInterface {
Chris@0: 
Chris@0:   /**
Chris@0:    * The breadcrumb manager.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Breadcrumb\BreadcrumbBuilderInterface
Chris@0:    */
Chris@0:   protected $breadcrumbManager;
Chris@0: 
Chris@0:   /**
Chris@0:    * The current route match.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Routing\RouteMatchInterface
Chris@0:    */
Chris@0:   protected $routeMatch;
Chris@0: 
Chris@0:   /**
Chris@0:    * Constructs a new SystemBreadcrumbBlock object.
Chris@0:    *
Chris@0:    * @param array $configuration
Chris@0:    *   A configuration array containing information about the plugin instance.
Chris@0:    * @param string $plugin_id
Chris@0:    *   The plugin_id for the plugin instance.
Chris@0:    * @param mixed $plugin_definition
Chris@0:    *   The plugin implementation definition.
Chris@0:    * @param \Drupal\Core\Breadcrumb\BreadcrumbBuilderInterface $breadcrumb_manager
Chris@0:    *   The breadcrumb manager.
Chris@0:    * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
Chris@0:    *   The current route match.
Chris@0:    */
Chris@0:   public function __construct(array $configuration, $plugin_id, $plugin_definition, BreadcrumbBuilderInterface $breadcrumb_manager, RouteMatchInterface $route_match) {
Chris@0:     parent::__construct($configuration, $plugin_id, $plugin_definition);
Chris@0:     $this->breadcrumbManager = $breadcrumb_manager;
Chris@0:     $this->routeMatch = $route_match;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
Chris@0:     return new static(
Chris@0:       $configuration,
Chris@0:       $plugin_id,
Chris@0:       $plugin_definition,
Chris@0:       $container->get('breadcrumb'),
Chris@0:       $container->get('current_route_match')
Chris@0:     );
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function build() {
Chris@0:     return $this->breadcrumbManager->build($this->routeMatch)->toRenderable();
Chris@0:   }
Chris@0: 
Chris@0: }