public function EntityReferenceLabelClassFormatter::viewElements in Element Class Formatter 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 EntityReferenceLabelFormatter::viewElements

File

src/Plugin/Field/FieldFormatter/EntityReferenceLabelClassFormatter.php, line 84

Class

EntityReferenceLabelClassFormatter

Plugin implementation of the 'file with class' formatter.

Namespace

Drupal\element_class_formatter\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $elements = parent::viewElements($items, $langcode);
  $class = $this
    ->getSetting('class');
  foreach ($this
    ->getEntitiesToView($items, $langcode) as $delta => $item) {

    // If it's a link add the class.
    if (isset($elements[$delta]['#type']) && $elements[$delta]['#type'] === 'link') {
      if (!empty($class)) {
        $elements[$delta]['#options']['attributes']['class'][] = $class;
      }
    }
    else {

      // Otherwise render as a div.
      $attributes = new Attribute();
      if (!empty($class)) {
        $attributes
          ->addClass($class);
      }

      // Otherwise collect the info needed for new render.
      $label = $elements[$delta]['#plain_text'];
      $cache = $elements[$delta]['#cache'];
      $elements[$delta] = [
        '#type' => 'html_tag',
        '#tag' => $this
          ->getSetting('tag'),
        '#attributes' => $attributes
          ->toArray(),
        '#value' => $label,
        '#cache' => $cache,
      ];
    }
  }
  return $elements;
}