class MenuLinkTree in Colossal Menu 8

Implements the loading, transforming and rendering of menu link trees.

Hierarchy

• class \Drupal\Core\Menu\MenuLinkTree implements MenuLinkTreeInterface
  • class \Drupal\colossal_menu\Menu\MenuLinkTree

1 string reference to 'MenuLinkTree'

colossal_menu.services.yml in ./colossal_menu.services.yml

colossal_menu.services.yml

1 service uses MenuLinkTree

colossal_menu.link_tree in ./colossal_menu.services.yml

Drupal\colossal_menu\Menu\MenuLinkTree

File

src/Menu/MenuLinkTree.php, line 18

Namespace

Drupal\colossal_menu\Menu

class MenuLinkTree extends CoreMenuLinkTree {

  /**
   * Entity Type Manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * Constructs a \Drupal\Core\Menu\MenuLinkTree object.
   *
   * @param \Drupal\Core\Menu\MenuTreeStorageInterface $tree_storage
   *   The menu link tree storage.
   * @param \Drupal\Core\Routing\RouteProviderInterface $route_provider
   *   The route provider to load routes by name.
   * @param \Drupal\Core\Menu\MenuActiveTrailInterface $menu_active_trail
   *   The active menu trail service.
   * @param \Drupal\Core\Controller\ControllerResolverInterface $controller_resolver
   *   The controller resolver.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The EntityTypeManager service.
   */
  public function __construct(MenuTreeStorageInterface $tree_storage, RouteProviderInterface $route_provider, MenuActiveTrailInterface $menu_active_trail, ControllerResolverInterface $controller_resolver, EntityTypeManagerInterface $entity_type_manager) {
    $this->treeStorage = $tree_storage;
    $this->routeProvider = $route_provider;
    $this->menuActiveTrail = $menu_active_trail;
    $this->controllerResolver = $controller_resolver;
    $this->entityTypeManager = $entity_type_manager;
  }

  /**
   * {@inheritdoc}
   */
  protected function createInstances(array $data_tree) {
    $tree = [];
    foreach ($data_tree as $key => $element) {
      $subtree = $this
        ->createInstances($element['subtree']);

      // Build a MenuLinkTreeElement out of the menu tree link definition:
      // transform the tree link definition into a link definition and store
      // tree metadata.
      $tree[$key] = new MenuLinkTreeElement($element['link'], (bool) $element['has_children'], (int) $element['depth'], (bool) $element['in_active_trail'], $subtree);
      if ($tree[$key]->link instanceof AccessibleInterface) {
        $tree[$key]->access = $tree[$key]->link
          ->access('view', NULL, TRUE);
      }
    }
    return $tree;
  }

  /**
   * {@inheritdoc}
   */
  public function build(array $tree) {
    $build = parent::build($tree);

    // Use a custom theme.
    if (isset($build['#theme'])) {
      $build['#theme'] = 'colossal_menu__' . strtr($build['#menu_name'], '-', '_');
    }
    if (!empty($build['#items'])) {
      $this
        ->addItemContent($build['#items']);
    }
    return $build;
  }

  /**
   * Add the Link Content and add a no link variable.
   *
   * @param array $tree
   *   Tree of links.
   */
  protected function addItemContent(array &$tree) {
    foreach ($tree as &$item) {
      $link = $item['original_link'];
      $item['show_title'] = $link
        ->showTitle();
      $item['identifier'] = Html::cleanCssIdentifier($link
        ->getMachineName());
      $item['has_link'] = TRUE;
      if (!$link
        ->isExternal() && $link
        ->getRouteName() == '<none>') {
        $item['has_link'] = FALSE;
      }
      $item['content'] = $this->entityTypeManager
        ->getViewBuilder($link
        ->getEntityTypeId())
        ->view($link, 'default');
      if (!empty($item['below'])) {
        $this
          ->addItemContent($item['below']);
      }
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
MenuLinkTree::$controllerResolver	protected	property	The controller resolver.
MenuLinkTree::$entityTypeManager	protected	property	Entity Type Manager.
MenuLinkTree::$menuActiveTrail	protected	property	The active menu trail service.
MenuLinkTree::$menuLinkManager	protected	property	The menu link plugin manager.
MenuLinkTree::$routeProvider	protected	property	The route provider to load routes by name.
MenuLinkTree::$treeStorage	protected	property	The menu link tree storage.
MenuLinkTree::addItemContent	protected	function	Add the Link Content and add a no link variable.
MenuLinkTree::build	public	function	Builds a renderable array from a menu tree. Overrides MenuLinkTree::build
MenuLinkTree::buildItems	protected	function	Builds the #items property for a menu tree's renderable array.
MenuLinkTree::createInstances	protected	function	Returns a tree containing of MenuLinkTreeElement based upon tree data. Overrides MenuLinkTree::createInstances
MenuLinkTree::getCurrentRouteMenuTreeParameters	public	function	Gets the link tree parameters for rendering a specific menu. Overrides MenuLinkTreeInterface::getCurrentRouteMenuTreeParameters
MenuLinkTree::getExpanded	public	function	Finds expanded links in a menu given a set of possible parents. Overrides MenuLinkTreeInterface::getExpanded
MenuLinkTree::getSubtreeHeight	public	function	Finds the height of a subtree rooted by of the given ID. Overrides MenuLinkTreeInterface::getSubtreeHeight
MenuLinkTree::load	public	function	Loads a menu tree with a menu link plugin instance at each element. Overrides MenuLinkTreeInterface::load
MenuLinkTree::maxDepth	public	function	Returns the maximum depth of tree that is supported. Overrides MenuLinkTreeInterface::maxDepth
MenuLinkTree::transform	public	function	Applies menu link tree manipulators to transform the given tree. Overrides MenuLinkTreeInterface::transform
MenuLinkTree::__construct	public	function	Constructs a \Drupal\Core\Menu\MenuLinkTree object. Overrides MenuLinkTree::__construct