public function BreadcrumbBuilder::build in Custom Breadcrumbs 1.x

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

src/BreadcrumbBuilder.php, line 164

Class

BreadcrumbBuilder

Class BreadcrumbBuilder.

Namespace

Drupal\custom_breadcrumbs

Code

public function build(RouteMatchInterface $route_match) {
  $breadcrumb = new Breadcrumb();

  // Set up homepage link.
  if ($this->customBreadcrumbsSettings['home'] && !$this->pathMatcher
    ->isFrontPage()) {
    $breadcrumb
      ->addLink(Link::createFromRoute($this->customBreadcrumbsSettingsData
      ->get('home_link'), '<front>'));
  }

  // Prepare all route parameters.
  $params = $route_match
    ->getParameters()
    ->all();

  // Check breadcrumbs by patch.
  if ($breadcrumbSetting = $this
    ->matchPaths($route_match)) {
    $this
      ->applyBreadcrumb($breadcrumb, $breadcrumbSetting, NULL);
  }
  else {

    // Set up breadcrumbs by content entity configs.
    $this
      ->applyContentEntityBreadcrumb($breadcrumb, $route_match);
  }

  // Set up the last current page crumb.
  if ($this->customBreadcrumbsSettings['current_page'] && !$this->pathMatcher
    ->isFrontPage()) {
    $title = '';
    $route = '<none>';
    $route_parameters = $route_parameters_link = [];
    foreach ($params as $key => $value) {
      if ($value instanceof ContentEntityInterface) {
        $route_parameters_link[$key] = $value
          ->id();
        $title = $value
          ->label();
      }
    }
    if ($this->customBreadcrumbsSettings['current_page_link']) {
      $route = $route_match
        ->getRouteName();
      $route_parameters = $route_parameters_link;
    }

    // Title resolver works good when you render breadcrumb on full page,
    // when we attach breadcrumb on node teaser, it doesn't work.
    if (empty($title)) {
      try {
        $title = $this->titleResolver
          ->getTitle($this->currentRequest, $route_match
          ->getRouteObject());
      } catch (\InvalidArgumentException $exception) {
        $title = NULL;
      }
    }
    if ($title != NULL) {
      $breadcrumb
        ->addLink(Link::createFromRoute($this
        ->prepareTitle($title), $route, $route_parameters));
    }
  }
  $breadcrumb
    ->addCacheContexts([
    'url.path',
  ]);
  return $breadcrumb;
}