Chris@17: <?php
Chris@17: 
Chris@17: namespace Drupal\Core\Ajax;
Chris@17: 
Chris@17: use Drupal\Core\EventSubscriber\MainContentViewSubscriber;
Chris@17: 
Chris@17: /**
Chris@17:  * Provides a helper to determine if the current request is via AJAX.
Chris@17:  *
Chris@17:  * @internal
Chris@17:  */
Chris@17: trait AjaxHelperTrait {
Chris@17: 
Chris@17:   /**
Chris@17:    * Determines if the current request is via AJAX.
Chris@17:    *
Chris@17:    * @return bool
Chris@17:    *   TRUE if the current request is via AJAX, FALSE otherwise.
Chris@17:    */
Chris@17:   protected function isAjax() {
Chris@17:     foreach (['drupal_ajax', 'drupal_modal', 'drupal_dialog'] as $wrapper) {
Chris@17:       if (strpos($this->getRequestWrapperFormat(), $wrapper) !== FALSE) {
Chris@17:         return TRUE;
Chris@17:       }
Chris@17:     }
Chris@17:     return FALSE;
Chris@17:   }
Chris@17: 
Chris@17:   /**
Chris@17:    * Gets the wrapper format of the current request.
Chris@17:    *
Chris@17:    * @string
Chris@17:    *   The wrapper format.
Chris@17:    */
Chris@17:   protected function getRequestWrapperFormat() {
Chris@17:     return \Drupal::request()->get(MainContentViewSubscriber::WRAPPER_FORMAT);
Chris@17:   }
Chris@17: 
Chris@17: }