unpublished_paragraphs-8.x-1.2/unpublished_paragraphs.module

<?php

/**
 * @file
 * Contains unpublished_paragraphs.module.
 */

use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Template\Attribute;

/**
 * Implements hook_help().
 */
function unpublished_paragraphs_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    // Main module help for the unpublished_paragraphs module.
    case 'help.page.unpublished_paragraphs':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('Toggles visibility of unpublished paragraphs for users with the proper permission.') . '</p>';
      break;

    default:
      $output = '';
  }
  return $output;
}

/**
 * Implements hook_preprocess_HOOK().
 *
 * Injects "paragraphs unpublished" classes to every unpublished paragraph,
 * only in not administrative routes (just in the render view).
 */
function unpublished_paragraphs_preprocess_paragraph(&$variables) {
  // In case of a not administrative view ...
  if (!\Drupal::service('router.admin_context')->isAdminRoute()) {
    /** @var \Drupal\paragraphs\ParagraphInterface $paragraph */
    $paragraph = $variables["paragraph"];
    /** @var \Drupal\paragraphs\ParagraphInterface $paragraph */
    if (!$paragraph->isPublished()) {
      /** @var \Drupal\Core\Template\Attribute $attributes */
      $variables['attributes'] = new Attribute($variables['attributes']);
      $variables['attributes']->addClass(['paragraph', 'unpublished']);
      $variables['#attached']['library'][] = 'unpublished_paragraphs/unpublished-toggle';
    }
  }
}