public function TrackDaFilesFormatter::viewElements in Track da files 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/TrackDaFilesFormatter.php, line 26

Class

TrackDaFilesFormatter

Plugin implementation of the 'TDF Generic files' formatter.

Namespace

Drupal\track_da_files\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $files, $langcode) {
  $elements = array();
  foreach ($this
    ->getEntitiesToView($files, $langcode) as $delta => $file) {
    $entity = $files
      ->getEntity();
    $type = $entity
      ->getEntityTypeId();
    $entity_bundle = $entity
      ->getType();
    $id = $entity
      ->id();
    $mime_type = $file
      ->getMimeType();
    $filesize = $file
      ->getSize();
    $filename = $file
      ->getFilename();
    $url = track_da_files_create_url($file
      ->getFileUri());
    $options['attributes']['type'] = $mime_type . '; length=' . $filesize;
    $options['query']['file'] = '1';
    $item = $file->_referringItem;
    if (isset($type)) {
      $options['query']['type'] = $type;
    }
    if (isset($id)) {
      $options['query']['id'] = $id;
    }
    $text = isset($item->description) ? $item->description : $filename;
    $link = \Drupal::l($text, Url::fromUri($url, $options));
    $elements[$delta] = array(
      '#markup' => $link,
      '#file' => $file,
      '#description' => $file->description,
      '#entity_type' => $type,
      '#entity_bundle' => $entity_bundle,
      '#entity_id' => $id,
    );

    // Pass field item attributes to the theme function.
    if (isset($item->_attributes)) {
      $elements[$delta] += array(
        '#attributes' => array(),
      );
      $elements[$delta]['#attributes'] += $item->_attributes;

      // Unset field item attributes since they have been included in the
      // formatter output and should not be rendered in the field template.
      unset($item->_attributes);
    }
  }
  if (!empty($elements)) {
    $elements['#attached'] = array(
      'library' => array(
        'file/drupal.file.formatter.generic',
      ),
    );
  }
  return $elements;
}