Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\Core\Ajax;
Chris@0: 
Chris@0: use Drupal\Core\Render\BubbleableMetadata;
Chris@0: use Drupal\Core\Render\AttachmentsInterface;
Chris@0: use Drupal\Core\Render\AttachmentsTrait;
Chris@0: use Symfony\Component\HttpFoundation\JsonResponse;
Chris@0: 
Chris@0: /**
Chris@0:  * JSON response object for AJAX requests.
Chris@0:  *
Chris@0:  * @ingroup ajax
Chris@0:  */
Chris@0: class AjaxResponse extends JsonResponse implements AttachmentsInterface {
Chris@0: 
Chris@0:   use AttachmentsTrait;
Chris@0: 
Chris@0:   /**
Chris@0:    * The array of ajax commands.
Chris@0:    *
Chris@0:    * @var array
Chris@0:    */
Chris@0:   protected $commands = [];
Chris@0: 
Chris@0:   /**
Chris@0:    * Add an AJAX command to the response.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\Ajax\CommandInterface $command
Chris@0:    *   An AJAX command object implementing CommandInterface.
Chris@0:    * @param bool $prepend
Chris@0:    *   A boolean which determines whether the new command should be executed
Chris@0:    *   before previously added commands. Defaults to FALSE.
Chris@0:    *
Chris@0:    * @return AjaxResponse
Chris@0:    *   The current AjaxResponse.
Chris@0:    */
Chris@0:   public function addCommand(CommandInterface $command, $prepend = FALSE) {
Chris@0:     if ($prepend) {
Chris@0:       array_unshift($this->commands, $command->render());
Chris@0:     }
Chris@0:     else {
Chris@0:       $this->commands[] = $command->render();
Chris@0:     }
Chris@0:     if ($command instanceof CommandWithAttachedAssetsInterface) {
Chris@0:       $assets = $command->getAttachedAssets();
Chris@0:       $attachments = [
Chris@0:         'library' => $assets->getLibraries(),
Chris@0:         'drupalSettings' => $assets->getSettings(),
Chris@0:       ];
Chris@0:       $attachments = BubbleableMetadata::mergeAttachments($this->getAttachments(), $attachments);
Chris@0:       $this->setAttachments($attachments);
Chris@0:     }
Chris@0: 
Chris@0:     return $this;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Gets all AJAX commands.
Chris@0:    *
Chris@0:    * @return \Drupal\Core\Ajax\CommandInterface[]
Chris@0:    *   Returns all previously added AJAX commands.
Chris@0:    */
Chris@0:   public function &getCommands() {
Chris@0:     return $this->commands;
Chris@0:   }
Chris@0: 
Chris@0: }