public function RadioactivityEmitter::viewElements in Radioactivity 8.3

Same name and namespace in other branches

1. 4.0.x src/Plugin/Field/FieldFormatter/RadioactivityEmitter.php \Drupal\radioactivity\Plugin\Field\FieldFormatter\RadioactivityEmitter::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/RadioactivityEmitter.php, line 94

Class

RadioactivityEmitter

Plugin implementation of the 'radioactivity_emitter' formatter.

Namespace

Drupal\radioactivity\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $elements = [];
  $shouldEmit = $this
    ->shouldEmit($items);
  foreach ($items as $delta => $item) {
    if ($shouldEmit) {
      $incident = Incident::createFromFieldItemsAndFormatter($items, $item, $this);
      $key = 'ra_emit_' . self::$emitCount++;
      $elements[$delta] = [
        '#attached' => [
          'library' => [
            'radioactivity/triggers',
          ],
          'drupalSettings' => [
            $key => $incident
              ->toJson(),
          ],
        ],
      ];
    }
    switch ($this
      ->getSetting('display')) {
      case 'raw':
        $elements[$delta]['#markup'] = $this
          ->viewValue($item);
        break;
    }
  }
  return $elements;
}