public static function ImageFieldTokensCropWidget::process in ImageField Tokens 8.2

Form API callback: Processes a crop_image field element.

Expands the image_image type to include the alt and title fields.

This method is assigned as a #process callback in formElement() method.

Return value

array The elements with parents fields.

File

src/Plugin/Field/FieldWidget/ImageFieldTokensCropWidget.php, line 138

Class

ImageFieldTokensCropWidget

Plugin implementation of the 'image_widget_crop' widget.

Namespace

Drupal\imagefield_tokens\Plugin\Field\FieldWidget

Code

public static function process($element, FormStateInterface $form_state, $form) {
  $element = parent::process($element, $form_state, $form);
  $entity_type = '';
  $current_entity = NULL;

  // Get form object to retrieve parent entity.
  $form_object = $form_state
    ->getFormObject();
  $get_entity = method_exists($form_object, 'getEntity');
  if ($get_entity) {
    $current_entity = $form_object
      ->getEntity();
    if (!empty($current_entity)) {
      $entity_type = $current_entity
        ->getEntityTypeId();
      $entity_bundle = $current_entity
        ->bundle();
      $field_name = $element['#field_name'];
      $field_config = FieldConfig::loadByName($entity_type, $entity_bundle, $field_name);
      $field_settings = $field_config
        ->getSettings();
    }
  }
  $item = $element['#value'];
  $item['fids'] = $element['fids']['#value'];
  $alt_token = '';
  $title_token = '';
  if (!empty($field_settings) && !empty($field_settings['default_image']) && (empty($item['alt']) || empty($item['title']))) {
    $item['alt'] = $field_settings['default_image']['alt'];
    $item['title'] = $field_settings['default_image']['title'];
  }
  if (isset($item['alt'])) {
    $alt_token = \Drupal::token()
      ->replace($item['alt'], [
      $entity_type => $current_entity,
    ]);
    if (empty($alt_token)) {
      $alt_token = $item['alt'];
    }
  }
  if (isset($item['title'])) {
    $title_token = \Drupal::token()
      ->replace($item['title'], [
      $entity_type => $current_entity,
    ]);
    if (empty($title_token)) {
      $title_token = $item['title'];
    }
  }

  // Add the additional alt and title fields.
  $element['alt'] = [
    '#title' => new TranslatableMarkup('Alternative text'),
    '#type' => 'textfield',
    '#default_value' => $alt_token ?? '',
    '#description' => new TranslatableMarkup('This text will be used by screen readers, search engines, or when the image cannot be loaded.'),
    // @see https://www.drupal.org/node/465106#alt-text
    '#maxlength' => 512,
    '#weight' => -12,
    '#access' => (bool) $item['fids'] && $element['#alt_field'],
    '#required' => $element['#alt_field_required'],
    '#element_validate' => $element['#alt_field_required'] === 1 ? [
      [
        get_called_class(),
        'validateRequiredFields',
      ],
    ] : [],
  ];
  $element['title'] = [
    '#type' => 'textfield',
    '#title' => new TranslatableMarkup('Title'),
    '#default_value' => $title_token ?? '',
    '#description' => new TranslatableMarkup('The title is used as a tool tip when the user hovers the mouse over the image.'),
    '#maxlength' => 1024,
    '#weight' => -11,
    '#access' => (bool) $item['fids'] && $element['#title_field'],
    '#required' => $element['#title_field_required'],
    '#element_validate' => $element['#title_field_required'] === 1 ? [
      [
        get_called_class(),
        'validateRequiredFields',
      ],
    ] : [],
  ];
  $element['#value']['alt'] = $alt_token;
  $element['#value']['title'] = $title_token;
  return $element;
}