function NavigationUserBlock::buildLinks

Lazy builder callback.

Attributes

File

core/modules/navigation/src/Plugin/Block/NavigationUserBlock.php, line 46

Class

NavigationUserBlock

Defines a user navigation block.

Namespace

Code

public static function buildLinks(string $label) : array {
  $parameters = new MenuTreeParameters();
  $parameters->setMinDepth(0)
    ->setMaxDepth(2)
    ->onlyEnabledLinks();
  /** @var \Drupal\Core\Menu\MenuLinkTreeInterface $menu_tree */
  $menu_tree = \Drupal::service('navigation.menu_tree');
  $subtree = $menu_tree->load(static::NAVIGATION_LINKS_MENU, $parameters);
  // Load the current user so that they can be added as a cacheable dependency
  // of the final render array.
  $account = User::load(\Drupal::currentUser()->id());
  $menu_definition = [
    'menu_name' => static::NAVIGATION_LINKS_MENU,
    'route_name' => 'user.page',
    'route_parameters' => [],
    'title' => $account->getDisplayName(),
    'description' => '',
    'options' => [],
    'provider' => 'navigation',
    'enabled' => '1',
  ];
  // Create a parent link that serves as a wrapper.
  // If the menu is removed for any reason, this item shows a link to the
  // user profile page as a fallback.
  $link = MenuLinkDefault::create(\Drupal::getContainer(), [], 'navigation.user_links.user.wrapper', $menu_definition);
  $tree = new MenuLinkTreeElement($link, TRUE, 1, FALSE, $subtree);
  $manipulators = [
    [
      'callable' => 'menu.default_tree_manipulators:checkAccess',
    ],
    [
      'callable' => 'menu.default_tree_manipulators:generateIndexAndSort',
    ],
  ];
  $tree = $menu_tree->transform([
    $tree,
  ], $manipulators);
  $build = $menu_tree->build($tree);
  $build['#title'] = $label;
  $build['#cache']['contexts'][] = 'user';
  $cacheable_metadata = CacheableMetadata::createFromRenderArray($build);
  $cacheable_metadata->addCacheableDependency($account);
  $cacheable_metadata->applyTo($build);
  return $build;
}