class ToolbarController in Drupal 8

Same name and namespace in other branches

9 core/modules/toolbar/src/Controller/ToolbarController.php \Drupal\toolbar\Controller\ToolbarController
10 core/modules/toolbar/src/Controller/ToolbarController.php \Drupal\toolbar\Controller\ToolbarController

Defines a controller for the toolbar module.

Hierarchy

class \Drupal\Core\Controller\ControllerBase implements ContainerInjectionInterface uses LoggerChannelTrait, MessengerTrait, LinkGeneratorTrait, RedirectDestinationTrait, UrlGeneratorTrait, StringTranslationTrait
- class \Drupal\toolbar\Controller\ToolbarController implements TrustedCallbackInterface

Expanded class hierarchy of ToolbarController

1 file declares its use of ToolbarController

toolbar.module in core/modules/toolbar/toolbar.module: Administration toolbar for quick access to top level administration items.

File

core/modules/toolbar/src/Controller/ToolbarController.php, line 16

Namespace

Drupal\toolbar\Controller

View source

class ToolbarController extends ControllerBase implements TrustedCallbackInterface {

  /**
   * Returns an AJAX response to render the toolbar subtrees.
   *
   * @return \Drupal\Core\Ajax\AjaxResponse
   */
  public function subtreesAjax() {
    list($subtrees, $cacheability) = toolbar_get_rendered_subtrees();
    $response = new AjaxResponse();
    $response
      ->addCommand(new SetSubtreesCommand($subtrees));

    // The Expires HTTP header is the heart of the client-side HTTP caching. The
    // additional server-side page cache only takes effect when the client
    // accesses the callback URL again (e.g., after clearing the browser cache
    // or when force-reloading a Drupal page).
    $max_age = 365 * 24 * 60 * 60;
    $response
      ->setPrivate();
    $response
      ->setMaxAge($max_age);
    $expires = new \DateTime();
    $expires
      ->setTimestamp(REQUEST_TIME + $max_age);
    $response
      ->setExpires($expires);
    return $response;
  }

  /**
   * Checks access for the subtree controller.
   *
   * @param string $hash
   *   The hash of the toolbar subtrees.
   *
   * @return \Drupal\Core\Access\AccessResultInterface
   *   The access result.
   */
  public function checkSubTreeAccess($hash) {
    $expected_hash = _toolbar_get_subtrees_hash()[0];
    return AccessResult::allowedIf($this
      ->currentUser()
      ->hasPermission('access toolbar') && hash_equals($expected_hash, $hash))
      ->cachePerPermissions();
  }

  /**
   * Renders the toolbar's administration tray.
   *
   * @param array $element
   *   A renderable array.
   *
   * @return array
   *   The updated renderable array.
   *
   * @see \Drupal\Core\Render\RendererInterface::render()
   */
  public static function preRenderAdministrationTray(array $element) {
    $menu_tree = \Drupal::service('toolbar.menu_tree');

    // Load the administrative menu. The first level is the "Administration"
    // link. In order to load the children of that link, start and end on the
    // second level.
    $parameters = new MenuTreeParameters();
    $parameters
      ->setMinDepth(2)
      ->setMaxDepth(2)
      ->onlyEnabledLinks();

    // @todo Make the menu configurable in https://www.drupal.org/node/1869638.
    $tree = $menu_tree
      ->load('admin', $parameters);
    $manipulators = [
      [
        'callable' => 'menu.default_tree_manipulators:checkAccess',
      ],
      [
        'callable' => 'menu.default_tree_manipulators:generateIndexAndSort',
      ],
      [
        'callable' => 'toolbar_menu_navigation_links',
      ],
    ];
    $tree = $menu_tree
      ->transform($tree, $manipulators);
    $element['administration_menu'] = $menu_tree
      ->build($tree);
    return $element;
  }

  /**
   * #pre_render callback for toolbar_get_rendered_subtrees().
   *
   * @internal
   */
  public static function preRenderGetRenderedSubtrees(array $data) {
    $menu_tree = \Drupal::service('toolbar.menu_tree');

    // Load the administration menu. The first level is the "Administration"
    // link. In order to load the children of that link and the subsequent two
    // levels, start at the second level and end at the fourth.
    $parameters = new MenuTreeParameters();
    $parameters
      ->setMinDepth(2)
      ->setMaxDepth(4)
      ->onlyEnabledLinks();

    // @todo Make the menu configurable in https://www.drupal.org/node/1869638.
    $tree = $menu_tree
      ->load('admin', $parameters);
    $manipulators = [
      [
        'callable' => 'menu.default_tree_manipulators:checkAccess',
      ],
      [
        'callable' => 'menu.default_tree_manipulators:generateIndexAndSort',
      ],
      [
        'callable' => 'toolbar_menu_navigation_links',
      ],
    ];
    $tree = $menu_tree
      ->transform($tree, $manipulators);
    $subtrees = [];

    // Calculated the combined cacheability of all subtrees.
    $cacheability = new CacheableMetadata();
    foreach ($tree as $element) {

      /** @var \Drupal\Core\Menu\MenuLinkInterface $link */
      $link = $element->link;
      if ($element->subtree) {
        $subtree = $menu_tree
          ->build($element->subtree);
        $output = \Drupal::service('renderer')
          ->renderPlain($subtree);
        $cacheability = $cacheability
          ->merge(CacheableMetadata::createFromRenderArray($subtree));
      }
      else {
        $output = '';
      }

      // Many routes have dots as route name, while some special ones like
      // <front> have <> characters in them.
      $url = $link
        ->getUrlObject();
      $id = str_replace([
        '.',
        '<',
        '>',
      ], [
        '-',
        '',
        '',
      ], $url
        ->isRouted() ? $url
        ->getRouteName() : $url
        ->getUri());
      $subtrees[$id] = $output;
    }

    // Store the subtrees, along with the cacheability metadata.
    $cacheability
      ->applyTo($data);
    $data['#subtrees'] = $subtrees;
    return $data;
  }

  /**
   * {@inheritdoc}
   */
  public static function trustedCallbacks() {
    return [
      'preRenderAdministrationTray',
      'preRenderGetRenderedSubtrees',
    ];
  }

}

Members

Name	Modifiers	Type	Description	Overrides
ControllerBase::$configFactory	protected	property	The configuration factory.
ControllerBase::$currentUser	protected	property	The current user service.	1
ControllerBase::$entityFormBuilder	protected	property	The entity form builder.
ControllerBase::$entityManager	protected	property	The entity manager.
ControllerBase::$entityTypeManager	protected	property	The entity type manager.
ControllerBase::$formBuilder	protected	property	The form builder.	2
ControllerBase::$keyValue	protected	property	The key-value storage.	1
ControllerBase::$languageManager	protected	property	The language manager.	1
ControllerBase::$moduleHandler	protected	property	The module handler.	2
ControllerBase::$stateService	protected	property	The state service.
ControllerBase::cache	protected	function	Returns the requested cache bin.
ControllerBase::config	protected	function	Retrieves a configuration object.
ControllerBase::container	private	function	Returns the service container.
ControllerBase::create	public static	function	Instantiates a new instance of this class. Overrides ContainerInjectionInterface::create	40
ControllerBase::currentUser	protected	function	Returns the current user.	1
ControllerBase::entityFormBuilder	protected	function	Retrieves the entity form builder.
ControllerBase::entityManager Deprecated	protected	function	Retrieves the entity manager service.
ControllerBase::entityTypeManager	protected	function	Retrieves the entity type manager.
ControllerBase::formBuilder	protected	function	Returns the form builder service.	2
ControllerBase::keyValue	protected	function	Returns a key/value storage collection.	1
ControllerBase::languageManager	protected	function	Returns the language manager service.	1
ControllerBase::moduleHandler	protected	function	Returns the module handler.	2
ControllerBase::redirect	protected	function	Returns a redirect response object for the specified route. Overrides UrlGeneratorTrait::redirect
ControllerBase::state	protected	function	Returns the state storage service.
LinkGeneratorTrait::$linkGenerator	protected	property	The link generator.	1
LinkGeneratorTrait::getLinkGenerator Deprecated	protected	function	Returns the link generator.
LinkGeneratorTrait::l Deprecated	protected	function	Renders a link to a route given a route name and its parameters.
LinkGeneratorTrait::setLinkGenerator Deprecated	public	function	Sets the link generator service.
LoggerChannelTrait::$loggerFactory	protected	property	The logger channel factory service.
LoggerChannelTrait::getLogger	protected	function	Gets the logger for a specific channel.
LoggerChannelTrait::setLoggerFactory	public	function	Injects the logger channel factory.
MessengerTrait::$messenger	protected	property	The messenger.	29
MessengerTrait::messenger	public	function	Gets the messenger.	29
MessengerTrait::setMessenger	public	function	Sets the messenger.
RedirectDestinationTrait::$redirectDestination	protected	property	The redirect destination service.	1
RedirectDestinationTrait::getDestinationArray	protected	function	Prepares a 'destination' URL query parameter for use with \Drupal\Core\Url.
RedirectDestinationTrait::getRedirectDestination	protected	function	Returns the redirect destination service.
RedirectDestinationTrait::setRedirectDestination	public	function	Sets the redirect destination service.
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
ToolbarController::checkSubTreeAccess	public	function	Checks access for the subtree controller.
ToolbarController::preRenderAdministrationTray	public static	function	Renders the toolbar's administration tray.
ToolbarController::preRenderGetRenderedSubtrees	public static	function	#pre_render callback for toolbar_get_rendered_subtrees().
ToolbarController::subtreesAjax	public	function	Returns an AJAX response to render the toolbar subtrees.
ToolbarController::trustedCallbacks	public static	function	Lists the trusted callbacks provided by the implementing class. Overrides TrustedCallbackInterface::trustedCallbacks
TrustedCallbackInterface::THROW_EXCEPTION		constant	Untrusted callbacks throw exceptions.
TrustedCallbackInterface::TRIGGER_SILENCED_DEPRECATION		constant	Untrusted callbacks trigger silenced E_USER_DEPRECATION errors.
TrustedCallbackInterface::TRIGGER_WARNING		constant	Untrusted callbacks trigger E_USER_WARNING errors.
UrlGeneratorTrait::$urlGenerator	protected	property	The url generator.
UrlGeneratorTrait::getUrlGenerator Deprecated	protected	function	Returns the URL generator service.
UrlGeneratorTrait::setUrlGenerator Deprecated	public	function	Sets the URL generator service.
UrlGeneratorTrait::url Deprecated	protected	function	Generates a URL or path for a specific route based on the given parameters.

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class ToolbarController in Drupal 8

Hierarchy

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