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class MenuSelectAutocompleteController in Menu Select 8

Same name and namespace in other branches
  1. 2.0.x src/Controller/MenuSelectAutocompleteController.php \Drupal\menu_select\Controller\MenuSelectAutocompleteController

Defines a controller class with methods for auto complete.

Hierarchy

Expanded class hierarchy of MenuSelectAutocompleteController

File

src/Controller/MenuSelectAutocompleteController.php, line 14

Namespace

Drupal\menu_select\Controller
View source
class MenuSelectAutocompleteController extends ControllerBase {

  /**
   * The tree builder service.
   *
   * @var \Drupal\menu_select\MenuSelectTreeBuilderInterface
   */
  protected $treeBuilder;

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    $instance = parent::create($container);
    $instance->treeBuilder = $container
      ->get('menu_select.tree_builder');
    return $instance;
  }

  /**
   * Returns autocomplete content for the given search queries.
   *
   * @return \Symfony\Component\HttpFoundation\JsonResponse
   *   A JSON response.
   */
  public function autocomplete($menus, $max_depth, Request $request) {
    $keyword = $request->query
      ->get('q');
    $menu_ids = explode(':', $menus);
    $matching_links = $this
      ->getMatchingLinks($keyword, $menu_ids, $max_depth);
    $autocomplete = [];
    foreach ($matching_links as $key => $label) {
      $autocomplete[] = [
        'value' => (string) $key,
        'label' => $label,
      ];
    }
    return new JsonResponse($autocomplete);
  }

  /**
   * Get links matching the given keyword.
   *
   * @param string $keyword
   *   The keyword to search for.
   * @param array $menus
   *   An array of menus to search.
   * @param int $max_depth
   *   The maximum depth to search.
   *
   * @return array
   *   An array of link options matching the keyword.
   */
  protected function getMatchingLinks($keyword, array $menus, $max_depth) {
    $options = [];
    foreach ($menus as $menu_name) {
      $tree = $this->treeBuilder
        ->loadMenuTree($menu_name, $max_depth);
      $candidates = [];
      $this
        ->buildCandidateLinks($tree, $menu_name, $candidates);
      foreach ($candidates as $key => $menu_link_label) {
        if (stripos($menu_link_label, $keyword) !== FALSE) {
          $options[$key] = $menu_link_label;
        }
      }
    }
    return $options;
  }

  /**
   * Build a recursive list of all candidates.
   *
   * @param array $tree
   *   A menu tree.
   * @param string $menu_name
   *   The menu name.
   * @param array $options
   *   An array of options, built recurwsively.
   */
  protected function buildCandidateLinks(array $tree, $menu_name, array &$options) {
    foreach ($tree as $data) {
      $title = $data->link
        ->getTitle();
      $options[$menu_name . ':' . $data->link
        ->getPluginId()] = $title;
      if (!empty($data->subtree)) {
        $this
          ->buildCandidateLinks($data->subtree, $menu_name, $options);
      }
    }
  }

}

Members

Namesort descending 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::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.
MenuSelectAutocompleteController::$treeBuilder protected property The tree builder service.
MenuSelectAutocompleteController::autocomplete public function Returns autocomplete content for the given search queries.
MenuSelectAutocompleteController::buildCandidateLinks protected function Build a recursive list of all candidates.
MenuSelectAutocompleteController::create public static function Instantiates a new instance of this class. Overrides ControllerBase::create
MenuSelectAutocompleteController::getMatchingLinks protected function Get links matching the given keyword.
MessengerTrait::$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.
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.