public function TokenAutocompleteController::autocomplete in Token 8

Retrieves suggestions for block category autocompletion.

Parameters

\Symfony\Component\HttpFoundation\Request $request: The current request.

string $token_type: The token type.

string $filter: The autocomplete filter.

Return value

\Symfony\Component\HttpFoundation\JsonResponse A JSON response containing autocomplete suggestions.

1 string reference to 'TokenAutocompleteController::autocomplete'

token.routing.yml in ./token.routing.yml

token.routing.yml

File

src/Controller/TokenAutocompleteController.php, line 47

Class

TokenAutocompleteController

Returns autocomplete responses for tokens.

Namespace

Drupal\token\Controller

Code

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);
}