public function Link::preRender in Field Group Link 8

Same name and namespace in other branches

1. 8.3 src/Plugin/field_group/FieldGroupFormatter/Link.php \Drupal\field_group_link\Plugin\field_group\FieldGroupFormatter\Link::preRender()

File

src/Plugin/field_group/FieldGroupFormatter/Link.php, line 125

Class

Link

Plugin implementation of the 'link' formatter.

Namespace

Drupal\field_group_link\Plugin\field_group\FieldGroupFormatter

Code

public function preRender(&$element, $rendering_object) {
  if (!isset($this->group->entity_type)) {
    return;
  }

  // Get the entity key from the entity type.
  $entity_key = '#' . $this->group->entity_type;
  if (!isset($rendering_object[$entity_key])) {

    // Some entity types store the key in an arbitrary name.
    // Check for the ones that we know of.
    switch ($this->group->entity_type) {
      case 'taxonomy_term':
        $entity_key = '#term';
        break;
      case 'user':
        $entity_key = '#account';
        break;

      // Otherwise just search for #entity.
      default:
        $entity_key = '#entity';
    }
  }
  if (isset($rendering_object[$entity_key]) && is_object($rendering_object[$entity_key])) {
    $entity = $rendering_object[$entity_key];
  }
  else {

    // We can't find the entity.
    // There's nothing we can do, so avoid attempting to create a link.
    return;
  }
  $url = NULL;
  switch ($this
    ->getSetting('target')) {
    case 'entity':
      $url = $entity
        ->toUrl();
      break;
    case 'custom_uri':
      $uri = $this
        ->getSetting('custom_uri');
      $uri = \Drupal::token()
        ->replace($uri, array(
        $this->group->entity_type => $entity,
      ), array(
        'clear' => TRUE,
        'sanitize' => TRUE,
      ));
      try {
        $url = Url::fromUri($uri);
      } catch (\InvalidArgumentException $e) {
        return;
      }
      break;
    default:
      $url = $this
        ->getUrlFromField($entity);
  }
  if ($url) {
    $element += array(
      '#type' => 'field_group_link',
      '#url' => $url,
      '#options' => array(
        'attributes' => array(
          'class' => $this
            ->getClasses(),
        ),
      ),
    );
    $target_attribute = $this
      ->getSetting('target_attribute');
    if ($target_attribute && $target_attribute != 'default') {
      $element['#options']['attributes']['target'] = $target_attribute;
    }
    if (!empty($this
      ->getSetting('id'))) {
      $element['#options']['attributes']['id'] = $this
        ->getSetting('id');
    }

    // Copy each child element into the link title.
    // Create a reference in case the content has not yet been generated.
    foreach (Element::children($element) as $group_child) {
      $element['#title'][$group_child] =& $element[$group_child];
    }
  }
}