class HelpBreadcrumbBuilder in Drupal 8

Provides a breadcrumb builder for help topic pages.

@internal Help Topics is currently experimental and should only be leveraged by experimental modules and development releases of contributed modules. See https://www.drupal.org/core/experimental for more information.

Hierarchy

• class \Drupal\help_topics\HelpBreadcrumbBuilder implements BreadcrumbBuilderInterface uses StringTranslationTrait

1 string reference to 'HelpBreadcrumbBuilder'

help_topics.services.yml in core/modules/help_topics/help_topics.services.yml

core/modules/help_topics/help_topics.services.yml

1 service uses HelpBreadcrumbBuilder

help.breadcrumb in core/modules/help_topics/help_topics.services.yml

Drupal\help_topics\HelpBreadcrumbBuilder

File

core/modules/help_topics/src/HelpBreadcrumbBuilder.php, line 20

Namespace

Drupal\help_topics

class HelpBreadcrumbBuilder implements BreadcrumbBuilderInterface {
  use StringTranslationTrait;

  /**
   * Constructs the HelpBreadcrumbBuilder.
   *
   * @param \Drupal\Core\StringTranslation\TranslationInterface $string_translation
   *   The translation service.
   */
  public function __construct(TranslationInterface $string_translation) {
    $this->stringTranslation = $string_translation;
  }

  /**
   * {@inheritdoc}
   */
  public function applies(RouteMatchInterface $route_match) {
    return $route_match
      ->getRouteName() == 'help.help_topic';
  }

  /**
   * {@inheritdoc}
   */
  public function build(RouteMatchInterface $route_match) {
    $breadcrumb = new Breadcrumb();
    $breadcrumb
      ->addCacheContexts([
      'url.path.parent',
    ]);
    $breadcrumb
      ->addLink(Link::createFromRoute($this
      ->t('Home'), '<front>'));
    $breadcrumb
      ->addLink(Link::createFromRoute($this
      ->t('Administration'), 'system.admin'));
    $breadcrumb
      ->addLink(Link::createFromRoute($this
      ->t('Help'), 'help.main'));
    return $breadcrumb;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
HelpBreadcrumbBuilder::applies	public	function	Whether this breadcrumb builder should be used to build the breadcrumb. Overrides BreadcrumbBuilderInterface::applies
HelpBreadcrumbBuilder::build	public	function	Builds the breadcrumb. Overrides BreadcrumbBuilderInterface::build
HelpBreadcrumbBuilder::__construct	public	function	Constructs the HelpBreadcrumbBuilder.
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.