www.aleph1.co.uk Git - yaffs-website/blob - web/core/lib/Drupal/Core/Ajax/CommandWithAttachedAssetsTrait.php

   1 <?php
   2
   3 namespace Drupal\Core\Ajax;
   4
   5 use Drupal\Core\Asset\AttachedAssets;
   6
   7 /**
   8  * Trait for Ajax commands that render content and attach assets.
   9  *
  10  * @ingroup ajax
  11  */
  12 trait CommandWithAttachedAssetsTrait {
  13
  14   /**
  15    * The attached assets for this Ajax command.
  16    *
  17    * @var \Drupal\Core\Asset\AttachedAssets
  18    */
  19   protected $attachedAssets;
  20
  21   /**
  22    * Processes the content for output.
  23    *
  24    * If content is a render array, it may contain attached assets to be
  25    * processed.
  26    *
  27    * @return string|\Drupal\Component\Render\MarkupInterface
  28    *   HTML rendered content.
  29    */
  30   protected function getRenderedContent() {
  31     $this->attachedAssets = new AttachedAssets();
  32     if (is_array($this->content)) {
  33       $html = \Drupal::service('renderer')->renderRoot($this->content);
  34       $this->attachedAssets = AttachedAssets::createFromRenderArray($this->content);
  35       return $html;
  36     }
  37     else {
  38       return $this->content;
  39     }
  40   }
  41
  42   /**
  43    * Gets the attached assets.
  44    *
  45    * @return \Drupal\Core\Asset\AttachedAssets|null
  46    *   The attached assets for this command.
  47    */
  48   public function getAttachedAssets() {
  49     return $this->attachedAssets;
  50   }
  51
  52 }