public function FlippingBookIframeFormatter::viewElements in Flipping Book 8

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/FlippingBookIframeFormatter.php, line 82

Class

FlippingBookIframeFormatter

Plugin implementation of the 'flipping_book_iframe_formatter' formatter.

Namespace

Drupal\flipping_book\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $elements = [];
  foreach ($items as $delta => $item) {
    $elements[$delta] = [
      '#markup' => $this
        ->viewValue($item),
      '#allowed_tags' => [
        'iframe',
      ],
    ];
  }
  return $elements;
}