class TokenAutocompleteController in Token 8

Returns autocomplete responses for tokens.

Hierarchy

• class \Drupal\Core\Controller\ControllerBase implements ContainerInjectionInterface uses LoggerChannelTrait, MessengerTrait, LinkGeneratorTrait, RedirectDestinationTrait, UrlGeneratorTrait, StringTranslationTrait
  • class \Drupal\token\Controller\TokenAutocompleteController

File

src/Controller/TokenAutocompleteController.php, line 14

Namespace

Drupal\token\Controller

class TokenAutocompleteController extends ControllerBase {

  /**
   * @var \Drupal\token\TreeBuilderInterface
   */
  protected $treeBuilder;
  public function __construct(TreeBuilderInterface $tree_builder) {
    $this->treeBuilder = $tree_builder;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('token.tree_builder'));
  }

  /**
   * Retrieves suggestions for block category autocompletion.
   *
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   The current request.
   * @param string $token_type
   *   The token type.
   * @param string $filter
   *   The autocomplete filter.
   *
   * @return \Symfony\Component\HttpFoundation\JsonResponse
   *   A JSON response containing autocomplete suggestions.
   */
  public function autocomplete($token_type, $filter, Request $request) {
    $filter = substr($filter, strrpos($filter, '['));
    $matches = [];
    if (!mb_strlen($filter)) {
      $matches["[{$token_type}:"] = 0;
    }
    else {
      $depth = max(1, substr_count($filter, ':'));
      $tree = $this->treeBuilder
        ->buildTree($token_type, [
        'flat' => TRUE,
        'depth' => $depth,
      ]);
      foreach (array_keys($tree) as $token) {
        if (strpos($token, $filter) === 0) {
          $matches[$token] = levenshtein($token, $filter);
          if (isset($tree[$token]['children'])) {
            $token = rtrim($token, ':]') . ':';
            $matches[$token] = levenshtein($token, $filter);
          }
        }
      }
    }
    asort($matches);
    $keys = array_keys($matches);
    $matches = array_combine($keys, $keys);
    return new JsonResponse($matches);
  }

}

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::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::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
TokenAutocompleteController::$treeBuilder	protected	property
TokenAutocompleteController::autocomplete	public	function	Retrieves suggestions for block category autocompletion.
TokenAutocompleteController::create	public static	function	Instantiates a new instance of this class. Overrides ControllerBase::create
TokenAutocompleteController::__construct	public	function
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.