/** * Checks if the embed button is enabled in an editor configuration. * * @param \Drupal\embed\EmbedButtonInterface $embed_button * The embed button entity to check. * @param \Drupal\editor\EditorInterface $editor * The editor entity to check. * * @return \Drupal\Core\Access\AccessResultInterface * * @throws \Symfony\Component\HttpKernel\Exception\HttpException * When the received Text Editor entity does not use CKEditor. This is * currently only capable of detecting buttons used by CKEditor. */ protected function checkButtonEditorAccess(EmbedButtonInterface $embed_button, EditorInterface $editor) { if ($editor->getEditor() !== 'ckeditor') { throw new HttpException(500, 'Currently, only CKEditor is supported.'); } $has_button = FALSE; $settings = $editor->getSettings(); foreach ($settings['toolbar']['rows'] as $row) { foreach ($row as $group) { if (in_array($embed_button->id(), $group['items'])) { $has_button = TRUE; break 2; } } } return AccessResult::allowedIf($has_button)->addCacheableDependency($embed_button)->addCacheableDependency($editor); }