function ImageWidget::formElement

Overrides FileWidget::formElement

File

core/modules/image/src/Plugin/Field/FieldWidget/ImageWidget.php, line 142

Class

ImageWidget

Plugin implementation of the 'image_image' widget.

Namespace

Code

public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
    $element = parent::formElement($items, $delta, $element, $form, $form_state);
    $field_settings = $this->getFieldSettings();
    // Add image validation.
    $element['#upload_validators']['file_validate_is_image'] = [];
    // Add upload resolution validation.
    if ($field_settings['max_resolution'] || $field_settings['min_resolution']) {
        $element['#upload_validators']['file_validate_image_resolution'] = [
            $field_settings['max_resolution'],
            $field_settings['min_resolution'],
        ];
    }
    $extensions = $field_settings['file_extensions'];
    $supported_extensions = $this->imageFactory
        ->getSupportedExtensions();
    // If using custom extension validation, ensure that the extensions are
    // supported by the current image toolkit. Otherwise, validate against all
    // toolkit supported extensions.
    $extensions = !empty($extensions) ? array_intersect(explode(' ', $extensions), $supported_extensions) : $supported_extensions;
    $element['#upload_validators']['file_validate_extensions'][0] = implode(' ', $extensions);
    // Add mobile device image capture acceptance.
    $element['#accept'] = 'image/*';
    // Add properties needed by process() method.
    $element['#preview_image_style'] = $this->getSetting('preview_image_style');
    $element['#title_field'] = $field_settings['title_field'];
    $element['#title_field_required'] = $field_settings['title_field_required'];
    $element['#alt_field'] = $field_settings['alt_field'];
    $element['#alt_field_required'] = $field_settings['alt_field_required'];
    // Default image.
    $default_image = $field_settings['default_image'];
    if (empty($default_image['uuid'])) {
        $default_image = $this->fieldDefinition
            ->getFieldStorageDefinition()
            ->getSetting('default_image');
    }
    // Convert the stored UUID into a file ID.
    if (!empty($default_image['uuid']) && ($entity = \Drupal::service('entity.repository')->loadEntityByUuid('file', $default_image['uuid']))) {
        $default_image['fid'] = $entity->id();
    }
    $element['#default_image'] = !empty($default_image['fid']) ? $default_image : [];
    return $element;
}