function HistoryCommentLinkBuilder::buildCommentedEntityLinks

File

core/modules/history/src/HistoryCommentLinkBuilder.php, line 39

Class

HistoryCommentLinkBuilder

Adds history functionality to comment links on nodes.

Namespace

Code

public function buildCommentedEntityLinks(FieldableEntityInterface $entity, array &$context) : array {
  $entity_links = $this->inner
    ->buildCommentedEntityLinks($entity, $context);
  if ($context['view_mode'] !== 'teaser') {
    return $entity_links;
  }
  $fields = $this->commentManager
    ->getFields($entity->getEntityTypeId());
  foreach ($fields as $field_name => $detail) {
    // Skip fields that the entity does not have.
    if (!$entity->hasField($field_name)) {
      continue;
    }
    $links = [];
    $commenting_status = $entity->get($field_name)->status;
    if ($commenting_status != CommentItemInterface::HIDDEN) {
      // Entity has commenting status open or closed.
      if ($this->currentUser
        ->hasPermission('access comments')) {
        if (!empty($entity->get($field_name)->comment_count)) {
          $links['comment-new-comments'] = [
            'title' => '',
            'url' => Url::fromRoute('<current>'),
            'attributes' => [
              'class' => 'hidden',
              'title' => new TranslatableMarkup('Jump to the first new comment.'),
              'data-history-node-last-comment-timestamp' => $entity->get($field_name)->last_comment_timestamp,
              'data-history-node-field-name' => $field_name,
            ],
          ];
        }
      }
    }
    if (!empty($links)) {
      // @todo do we have the same order as before?
      $entity_links['comment__' . $field_name]['#links'] += $links;
      if ($this->currentUser
        ->isAuthenticated()) {
        $entity_links['comment__' . $field_name]['#cache']['contexts'][] = 'user';
        $entity_links['comment__' . $field_name]['#attached']['library'][] = 'history/drupal.node-new-comments-link';
        // Embed the metadata for the "X new comments" link (if any) on this
        // entity.
        $entity_links['comment__' . $field_name]['#attached']['drupalSettings']['history']['lastReadTimestamps'][$entity->id()] = history_read($entity->id());
        $new_comments = $this->commentManager
          ->getCountNewComments($entity);
        if ($new_comments > 0) {
          $page_number = $this->entityTypeManager
            ->getStorage('comment')
            ->getNewCommentPageNumber($entity->{$field_name}->comment_count, $new_comments, $entity, $field_name);
          $query = $page_number ? [
            'page' => $page_number,
          ] : NULL;
          $value = [
            'new_comment_count' => (int) $new_comments,
            'first_new_comment_link' => $entity->toUrl('canonical', [
              'query' => $query,
              'fragment' => 'new',
            ])
              ->toString(),
          ];
          $parents = [
            'comment',
            'newCommentsLinks',
            $entity->getEntityTypeId(),
            $field_name,
            $entity->id(),
          ];
          NestedArray::setValue($entity_links['comment__' . $field_name]['#attached']['drupalSettings'], $parents, $value);
        }
      }
    }
  }
  return $entity_links;
}