trait DialogHelperTrait in Layout Paragraphs 2.0.x

trait DialogHelperTrait {

  /**
   * Generates a dialog id for a given layout.
   *
   * @param \Drupal\layout_paragraphs\LayoutParagraphsLayout $layout
   *   The layout paragraphs object.
   *
   * @return string
   *   The id.
   */
  protected function dialogId(LayoutParagraphsLayout $layout) {
    return Html::getId('lpb-dialog-' . $layout
      ->id());
  }

  /**
   * Generates a dialog selector for a given layout.
   *
   * @param \Drupal\layout_paragraphs\LayoutParagraphsLayout $layout
   *   The layout paragraphs layout object.
   *
   * @return string
   *   The dom selector for the dialog.
   */
  protected function dialogSelector(LayoutParagraphsLayout $layout) {
    return '#' . $this
      ->dialogId($layout);
  }

  /**
   * Returns a CloseDialogComand with the correct selector.
   *
   * @param \Drupal\layout_paragraphs\LayoutParagraphsLayout $layout
   *   The layout paragraphs layout object.
   *
   * @return \Drupal\Core\Ajax\CommandInterface
   *   The close command.
   */
  protected function closeDialogCommand(LayoutParagraphsLayout $layout) {
    return new CloseDialogCommand($this
      ->dialogSelector($layout));
  }

  /**
   * Returns an array of dialog settings for modal edit forms.
   *
   * @param \Drupal\layout_paragraphs\LayoutParagraphsLayout|null $layout
   *   If provided, will add a target for the correct dialog id value.
   *
   * @return array
   *   The modal settings.
   */
  protected function dialogSettings(LayoutParagraphsLayout $layout = NULL) {
    $config = \Drupal::config('layout_paragraphs.modal_settings');
    $modal_settings = [
      'width' => $config
        ->get('width'),
      'height' => $config
        ->get('height'),
      'autoResize' => $config
        ->get('autoresize'),
      'modal' => TRUE,
      'drupalAutoButtons' => FALSE,
    ];
    if (!empty($layout)) {
      $modal_settings['target'] = $this
        ->dialogId($layout);
    }
    return $modal_settings;
  }

}