Chris@14: <?php
Chris@14: 
Chris@14: namespace Drupal\layout_builder\Controller;
Chris@14: 
Chris@14: use Drupal\Core\EventSubscriber\MainContentViewSubscriber;
Chris@14: 
Chris@14: /**
Chris@14:  * Provides a helper to determine if the current request is via AJAX.
Chris@14:  *
Chris@14:  * @internal
Chris@14:  *
Chris@14:  * @todo Move to \Drupal\Core in https://www.drupal.org/node/2896535.
Chris@14:  */
Chris@14: trait AjaxHelperTrait {
Chris@14: 
Chris@14:   /**
Chris@14:    * Determines if the current request is via AJAX.
Chris@14:    *
Chris@14:    * @return bool
Chris@14:    *   TRUE if the current request is via AJAX, FALSE otherwise.
Chris@14:    */
Chris@14:   protected function isAjax() {
Chris@14:     return in_array($this->getRequestWrapperFormat(), [
Chris@14:       'drupal_ajax',
Chris@14:       'drupal_dialog',
Chris@14:       'drupal_dialog.off_canvas',
Chris@14:       'drupal_modal',
Chris@14:     ]);
Chris@14:   }
Chris@14: 
Chris@14:   /**
Chris@14:    * Gets the wrapper format of the current request.
Chris@14:    *
Chris@14:    * @string
Chris@14:    *   The wrapper format.
Chris@14:    */
Chris@14:   protected function getRequestWrapperFormat() {
Chris@14:     return \Drupal::request()->get(MainContentViewSubscriber::WRAPPER_FORMAT);
Chris@14:   }
Chris@14: 
Chris@14: }