public function viewElementsTrait::viewElements in Fasttoggle 8.2

File

src/viewElementsTrait.php, line 19

Class

viewElementsTrait

Supply shared method for getting elements render array.

Namespace

Drupal\fasttoggle

Code

public function viewElements(FieldItemListInterface $items, $langcode) {

  // Get the elements without Fasttoggle links applied.
  $elements = parent::viewElements($items, $langcode);
  $parent = $items
    ->getParent()
    ->getValue();
  $object_type = $parent
    ->getEntityTypeId();
  $object_id = $parent
    ->id();
  $controller = new FasttoggleController();
  $objectManager = $controller
    ->getObjectManager($parent);
  if (!$objectManager) {
    return $elements;
  }

  // Calculate an access result and add cache tags to $elements.
  $accessible = $objectManager
    ->mayEditEntity();
  if ($accessible
    ->isForbidden()) {
    return $elements;
  }
  $renderer = \Drupal::service('renderer');
  $renderer
    ->addCacheableDependency($elements, $accessible);
  foreach ($items as $delta => $item) {
    $linkText = $elements[$delta]['#markup'];

    // Get the group & setting and check access.
    $instance = $item
      ->getFieldDefinition();
    list($groupPlugin, $settingPlugin) = $controller
      ->groupAndSettingFromFieldName($instance);
    if (!$groupPlugin || !$settingPlugin) {
      $this
        ->messenger()
        ->addError("Fasttoggle plugin definition for '{$instance->getName()}' field not found.", "error");
      continue;
    }
    $settingPlugin
      ->setObject($parent);
    if (!$settingPlugin
      ->mayEdit()
      ->isAllowed()) {
      continue;
    }
    $cid = Crypt::randomBytesBase64();
    $group = $groupPlugin
      ->getPluginId();
    $setting = $settingPlugin
      ->getPluginId();

    // Cache using the token generated as the key.
    $cached_fieldview_config = [
      'object_type' => $object_type,
      'object_id' => $object_id,
      'group' => $group,
      'setting' => $setting,
      'token' => $cid,
      'plugin_definition' => $items
        ->getPluginDefinition(),
      'field_definition' => $items
        ->getFieldDefinition(),
      'formatter_settings' => [
        'format' => $this
          ->getSetting('format'),
        'format_custom_true' => $this
          ->getSetting('format_custom_true'),
        'format_custom_false' => $this
          ->getSetting('format_custom_false'),
      ],
      'label' => $this->label,
      'view_mode' => $this->viewMode,
      'third_party_settings' => $this->thirdPartySettings,
      'langcode' => $langcode,
    ];
    \Drupal::cache()
      ->set('fasttoggle-' . $cid, $cached_fieldview_config, Cache::PERMANENT, [
      'fasttoggle',
      "{$object_type}_{$object_id}",
    ]);
    $url_args = [
      'token' => $cid,
    ];
    $elements[$delta] = $settingPlugin
      ->render_array($cid, $linkText, $url_args);
  }
  return $elements;
}