public function EntityReferenceMiconFormatter::viewElements in Micon 2.x

Same name and namespace in other branches

1. 8 src/Plugin/Field/FieldFormatter/EntityReferenceMiconFormatter.php \Drupal\micon\Plugin\Field\FieldFormatter\EntityReferenceMiconFormatter::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 EntityReferenceLabelFormatter::viewElements

File

src/Plugin/Field/FieldFormatter/EntityReferenceMiconFormatter.php, line 27

Class

EntityReferenceMiconFormatter

Plugin implementation of the 'entity reference label' formatter.

Namespace

Drupal\micon\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $elements = [];
  $output_as_link = $this
    ->getSetting('link');
  foreach ($this
    ->getEntitiesToView($items, $langcode) as $delta => $entity) {
    $icon = new MiconIconize($entity
      ->label());
    if ($icon) {
      $bundle = $entity
        ->bundle() == 'node_type' ? 'content_type' : $entity
        ->bundle();
      $icon
        ->addMatchPrefix($bundle)
        ->setIconOnly();

      // If the link is to be displayed and the entity has a uri, display a
      // link.
      if ($output_as_link && !$entity
        ->isNew()) {
        try {
          $uri = $entity
            ->toUrl();
        } catch (UndefinedLinkTemplateException $e) {
          $output_as_link = FALSE;
        }
      }
      if ($output_as_link && isset($uri) && !$entity
        ->isNew()) {
        $elements[$delta] = [
          '#type' => 'link',
          '#title' => $icon,
          '#url' => $uri,
          '#options' => $uri
            ->getOptions(),
        ];
        if (!empty($items[$delta]->_attributes)) {
          $elements[$delta]['#options'] += [
            'attributes' => [],
          ];
          $elements[$delta]['#options']['attributes'] += $items[$delta]->_attributes;

          // Unset field item attributes since they have been included in the
          // formatter output and shouldn't be rendered in the field template.
          unset($items[$delta]->_attributes);
        }
      }
      else {
        $elements[$delta]['#markup'] = $icon
          ->render();
      }
    }
    $elements[$delta]['#cache']['tags'] = $entity
      ->getCacheTags();
  }
  return $elements;
}