public function WebformEntityReferenceEntityFormatter::viewElements in Webform 8.5

Same name and namespace in other branches

1. 6.x src/Plugin/Field/FieldFormatter/WebformEntityReferenceEntityFormatter.php \Drupal\webform\Plugin\Field\FieldFormatter\WebformEntityReferenceEntityFormatter::viewElements()

Builds a renderable array for a field value.

Parameters

\Drupal\Core\Field\FieldItemListInterface $items: The field values to be rendered.

string $langcode: The language that should be used to render the field.

Return value

array A renderable array for $items, as an array of child elements keyed by consecutive numeric indexes starting from 0.

Overrides FormatterInterface::viewElements

File

src/Plugin/Field/FieldFormatter/WebformEntityReferenceEntityFormatter.php, line 168

Class

WebformEntityReferenceEntityFormatter

Plugin implementation of the 'Webform rendered entity' formatter.

Namespace

Drupal\webform\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {

  // Get items entity, which is the entity that the webform
  // is directly attached to. For Paragraphs this would be the field's
  // paragraph entity.
  $items_entity = $items
    ->getEntity();

  // Get the items main entity. For Paragraphs this would be the parent entity
  // of the the paragraph field.
  $items_main_entity = WebformSourceEntityManager::getMainSourceEntity($items_entity);
  $request_source_entity = $this->requestHandler
    ->getCurrentSourceEntity();

  // Determine if webform is previewed within a Paragraph on
  // entity edit forms (via *.edit_form or .content_translation_add routes).
  $route_name = $this->routeMatch
    ->getRouteName();
  $is_entity_edit_form = preg_match('/\\.edit_form$/', $route_name) || preg_match('/\\.content_translation_add$/', $route_name) || in_array($route_name, [
    'entity.block_content.canonical',
  ]);

  // Same goes for entity add forms.
  $is_entity_add_form = preg_match('/\\.add$/', $route_name);
  $is_paragraph = $items_entity && $items_entity
    ->getEntityTypeId() === 'paragraph';
  $is_paragraph_current_source_entity = $items_main_entity && $request_source_entity && $items_main_entity
    ->getEntityTypeId() === $request_source_entity
    ->getEntityTypeId() && $items_main_entity
    ->id() === $request_source_entity
    ->id();
  $is_paragraph_entity_edit_form = $is_entity_edit_form && $is_paragraph && $is_paragraph_current_source_entity;
  $is_paragraph_entity_add_form = $is_entity_add_form && $is_paragraph;
  $elements = [];
  foreach ($this
    ->getEntitiesToView($items, $langcode) as $delta => $entity) {
    if ($is_paragraph_entity_edit_form || $is_paragraph_entity_add_form) {

      // Webform can not be nested within node edit form because the nested
      // <form> tags will cause unexpected validation issues.
      $elements[$delta] = [
        '#type' => 'webform_message',
        '#message_message' => $this
          ->t('%label webform can not be previewed when editing content.', [
          '%label' => $entity
            ->label(),
        ]),
        '#message_type' => 'info',
      ];
    }
    else {
      $elements[$delta] = [
        '#type' => 'webform',
        '#webform' => $entity,
        '#default_data' => !empty($items[$delta]->default_data) ? Yaml::decode($items[$delta]->default_data) : [],
        '#entity' => $this
          ->getSetting('source_entity') ? $items_entity : NULL,
      ];
    }
    $this
      ->setCacheContext($elements[$delta], $entity, $items[$delta]);
  }
  return $elements;
}