public static function ParagraphsPreviewerWidgetTrait::ajaxSubmitPreviewerItem in Paragraphs Previewer 8

Previewer button AJAX callback.

Parameters

array $form: The form array.

\Drupal\Core\Form\FormStateInterface $form_state: The form state.

File

src/Plugin/Field/FieldWidget/ParagraphsPreviewerWidgetTrait.php, line 151

Class

ParagraphsPreviewerWidgetTrait

Paragraphs previewer trait to support multiple paragraphs widgets.

Namespace

Drupal\paragraphs_previewer\Plugin\Field\FieldWidget

Code

public static function ajaxSubmitPreviewerItem(array $form, FormStateInterface $form_state) {
  $preview_url = NULL;
  $dialog_title = t('Preview');
  $dialog_options = [
    'dialogClass' => 'paragraphs-previewer-ui-dialog',
    'minWidth' => 320,
    'width' => '98%',
    'minHeight' => 100,
    'height' => 400,
    'autoOpen' => TRUE,
    'modal' => TRUE,
    'draggable' => TRUE,
    'autoResize' => FALSE,
    'resizable' => TRUE,
    'closeOnEscape' => TRUE,
    'closeText' => '',
  ];
  $previewer_element = $form_state
    ->getTriggeringElement();

  // Get dialog title.
  if (isset($previewer_element['#previewer_dialog_title'])) {
    $dialog_title = $previewer_element['#previewer_dialog_title'];
  }

  // Build previewer callback url.
  if (!empty($previewer_element['#field_item_parents']) && !empty($form['#build_id'])) {
    $route_name = 'paragraphs_previewer.form_preview';
    $route_parameters = [
      'form_build_id' => $form['#build_id'],
      'element_parents' => implode(':', $previewer_element['#field_item_parents']),
    ];
    $preview_url = Url::fromRoute($route_name, $route_parameters);
  }

  // Build modal content.
  $dialog_content = [
    '#theme' => 'paragraphs_previewer_modal_content',
    '#preview_url' => $preview_url,
  ];

  // Build response.
  $response = new AjaxResponse();

  // Attach the library necessary for using the OpenModalDialogCommand and
  // set the attachments for this Ajax response.
  $form['#attached']['library'][] = 'core/drupal.dialog.ajax';
  $response
    ->setAttachments($form['#attached']);

  // Add modal dialog.
  $response
    ->addCommand(new OpenModalDialogCommand($dialog_title, $dialog_content, $dialog_options));
  return $response;
}