class SocialAdminMenuAdministratorMenuLinkTreeManipulators in Open Social 8

Provides a couple of menu link tree manipulators.

This class provides menu link tree manipulators to:

• perform render cached menu-optimized access checking
• optimized node access checking
• generate a unique index for the elements in a tree and sorting by it
• flatten a tree (i.e. a 1-dimensional tree)

Hierarchy

• class \Drupal\Core\Menu\DefaultMenuLinkTreeManipulators
  • class \Drupal\social_admin_menu\Menu\SocialAdminMenuAdministratorMenuLinkTreeManipulators

1 string reference to 'SocialAdminMenuAdministratorMenuLinkTreeManipulators'

social_admin_menu.services.yml in modules/custom/social_admin_menu/social_admin_menu.services.yml

modules/custom/social_admin_menu/social_admin_menu.services.yml

1 service uses SocialAdminMenuAdministratorMenuLinkTreeManipulators

social_admin_menu.administrator_menu_tree_manipulators in modules/custom/social_admin_menu/social_admin_menu.services.yml

Drupal\social_admin_menu\Menu\SocialAdminMenuAdministratorMenuLinkTreeManipulators

File

modules/custom/social_admin_menu/src/Menu/SocialAdminMenuAdministratorMenuLinkTreeManipulators.php, line 17

Namespace

Drupal\social_admin_menu\Menu

class SocialAdminMenuAdministratorMenuLinkTreeManipulators extends DefaultMenuLinkTreeManipulators {

  /**
   * Performs access checks of a menu tree.
   *
   * Sets the 'access' property to AccessResultInterface objects on menu link
   * tree elements. Descends into subtrees if the root of the subtree is
   * accessible. Inaccessible subtrees are deleted, except the top-level
   * inaccessible link, to be compatible with render caching.
   *
   * (This means that top-level inaccessible links are *not* removed; it is up
   * to the code doing something with the tree to exclude inaccessible links,
   * just like MenuLinkTree::build() does. This allows those things to specify
   * the necessary cacheability metadata.)
   *
   * This is compatible with render caching, because of cache context bubbling:
   * conditionally defined cache contexts (i.e. subtrees that are only
   * accessible to some users) will bubble just like they do for render arrays.
   * This is why inaccessible subtrees are deleted, except at the top-level
   * inaccessible link: if we didn't keep the first (depth-wise) inaccessible
   * link, we wouldn't be able to know which cache contexts would cause those
   * subtrees to become accessible again, thus forcing us to conclude that that
   * subtree is unconditionally inaccessible.
   *
   * @param \Drupal\Core\Menu\MenuLinkTreeElement[] $tree
   *   The menu link tree to manipulate.
   *
   * @return \Drupal\Core\Menu\MenuLinkTreeElement[]
   *   The manipulated menu link tree.
   */
  public function checkAccess(array $tree) {
    if ($this->account
      ->id() != 1) {
      $account_roles = $this->account
        ->getRoles();

      // Define routes to hide for a role.
      // 'content' => 'system.admin_content',
      // 'structure' => 'system.admin_structure',
      // 'config' => 'system.admin_config',
      // 'reports' => 'system.admin_reports',
      // 'themes' => 'system.themes_page',
      // 'people' => 'entity.user.collection',
      // 'help' => 'help.main'.
      $routes = [
        'contentmanager' => [
          'config' => 'system.admin_config',
          'reports' => 'system.admin_reports',
          'help' => 'help.main',
        ],
        'sitemanager' => [
          'help' => 'help.main',
        ],
      ];

      // Define which routes to hide based on hierarchy.
      if (in_array('sitemanager', $account_roles)) {
        $hide_routes = $routes['sitemanager'];
      }
      elseif (in_array('contentmanager', $account_roles)) {
        $hide_routes = $routes['contentmanager'];
      }
      else {
        $hide_routes = [];
      }
      foreach ($tree as $key => $element) {

        // Always hide the admin_toolbar_tools.help.
        $plugin_id = $tree[$key]->link
          ->getPluginId();
        if ($plugin_id === 'admin_toolbar_tools.help') {
          unset($tree[$key]);
          continue;
        }
        $route = $tree[$key]->link
          ->getRouteName();
        if (in_array($route, $hide_routes)) {
          unset($tree[$key]);
          continue;
        }
      }
    }
    return $tree;
  }

  /**
   * Renders the toolbar's administration tray.
   *
   * This is a adoption of core's
   * toolbar_prerender_toolbar_administration_tray() function,
   * which uses setMaxDepth(4) instead of setTopLevelOnly()
   *
   * @return array
   *   The updated renderable array.
   *
   * @see admin_toolbar_prerender_toolbar_administration_tray()
   */
  public function renderForm() {
    $menu_tree = \Drupal::service('toolbar.menu_tree');
    $parameters = new MenuTreeParameters();
    $parameters
      ->setRoot('system.admin')
      ->excludeRoot()
      ->setMaxDepth(4)
      ->onlyEnabledLinks();
    $manipulators = [
      [
        'callable' => 'menu.default_tree_manipulators:checkAccess',
      ],
      [
        'callable' => 'menu.default_tree_manipulators:generateIndexAndSort',
      ],
      [
        'callable' => 'toolbar_tools_menu_navigation_links',
      ],
      [
        'callable' => 'social_admin_menu.administrator_menu_tree_manipulators:checkAccess',
      ],
    ];
    $tree = $menu_tree
      ->load(NULL, $parameters);
    $tree = $menu_tree
      ->transform($tree, $manipulators);
    $element['administration_menu'] = $menu_tree
      ->build($tree);
    $element['administration_menu']['#cache']['contexts'][] = 'user.roles';
    return $element;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DefaultMenuLinkTreeManipulators::$accessManager	protected	property	The access manager.
DefaultMenuLinkTreeManipulators::$account	protected	property	The current user.
DefaultMenuLinkTreeManipulators::$entityTypeManager	protected	property	The entity type manager.
DefaultMenuLinkTreeManipulators::checkNodeAccess	public	function	Performs access checking for nodes in an optimized way.
DefaultMenuLinkTreeManipulators::collectNodeLinks	protected	function	Collects the node links in the menu tree.
DefaultMenuLinkTreeManipulators::flatten	public	function	Flattens the tree to a single level.
DefaultMenuLinkTreeManipulators::generateIndexAndSort	public	function	Generates a unique index and sorts by it.
DefaultMenuLinkTreeManipulators::menuLinkCheckAccess	protected	function	Checks access for one menu link instance.
DefaultMenuLinkTreeManipulators::__construct	public	function	Constructs a \Drupal\Core\Menu\DefaultMenuLinkTreeManipulators object.
SocialAdminMenuAdministratorMenuLinkTreeManipulators::checkAccess	public	function	Performs access checks of a menu tree. Overrides DefaultMenuLinkTreeManipulators::checkAccess
SocialAdminMenuAdministratorMenuLinkTreeManipulators::renderForm	public	function	Renders the toolbar's administration tray.