function simplenews_node_view in Simplenews 8

Same name and namespace in other branches

1. 8.2 simplenews.module \simplenews_node_view()
2. 7.2 simplenews.module \simplenews_node_view()
3. 7 simplenews.module \simplenews_node_view()
4. 3.x simplenews.module \simplenews_node_view()

Implements hook_node_view().

File

./simplenews.module, line 75

Simplenews node handling, sent email, newsletter block and general hooks

Code

function simplenews_node_view(array &$build, NodeInterface $node, $display, $view_mode) {
  if (!simplenews_check_node_types($node
    ->getType())) {
    return;
  }

  // Only do token replacements for view modes other than the our own email view
  // modes. Token replacements for them will happen later on.
  if (strpos($view_mode, 'email_') !== FALSE) {
    return;
  }

  // Build up content, add as much as there is.
  $context = array(
    'node' => $node,
  );

  // If the current user is a subscriber, extend context.
  $user = \Drupal::currentUser();
  if ($user
    ->id() > 0 && ($subscriber = simplenews_subscriber_load_by_mail($user
    ->getEmail()))) {
    $context['simplenews_subscriber'] = $subscriber;
  }

  // Loop over all render array elements.
  foreach (Element::children($build) as $key) {
    $element =& $build[$key];

    // Make sure this is a field.
    if (!isset($element['#field_type'])) {
      continue;
    }

    // Loop over all field values.
    foreach (Element::children($element) as $field_key) {
      $item =& $element[$field_key];

      // Only fields which result in simple markup elements are supported for
      // token replacements for now.
      if (isset($item['#markup'])) {
        $item['#markup'] = \Drupal::token()
          ->replace($item['#markup'], $context, array());
      }
    }
  }
}