function HistoryHooks::commentView

Implements hook_ENTITY_TYPE_view for comment entities.

Attributes

File

core/modules/history/src/Hook/HistoryHooks.php, line 111

Class

HistoryHooks

Hook implementations for history.

Namespace

Code

public function commentView(array &$build, EntityInterface $entity, EntityViewDisplayInterface $display, $view_mode) : void {
  if (!$this->currentUser
    ->isAuthenticated()) {
    return;
  }
  /** @var \Drupal\comment\CommentInterface $entity */
  $commented_entity = $entity->getCommentedEntity();
  if ($commented_entity?->getEntityTypeId() !== 'node') {
    return;
  }
  $build[$entity->id()]['#attached']['library'][] = 'history/drupal.comment-new-indicator';
  // Embed the metadata for the comment "new" indicators on this node.
  $build[$entity->id()]['history'] = [
    '#lazy_builder' => [
      '\\Drupal\\history\\HistoryRenderCallback::lazyBuilder',
      [
        $commented_entity->id(),
      ],
    ],
    '#create_placeholder' => TRUE,
  ];
}