paragraphs_bundles-1.0.x-dev/modules/paragraph_bundle_icon/paragraph_bundle_icon.module

<?php

/**
 * @file
 * Paragraph Bundle Icon.
 *
 * Filename:     paragraph_bundle_icon.module
 * Website:      https://www.flashwebcenter.com
 * Description:  template.
 * Developer:    Alaa Haddad https://www.alaahaddad.com.
 */

use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 */
function paragraph_bundle_icon_help($route_name, RouteMatchInterface $route_match) {
  if ($route_name === 'help.page.paragraph_bundle_icon') {
    return paragraphs_bundles__helper_render_readme();
  }
  return NULL;
}

/**
 * Implements hook_preprocess_page().
 */
function paragraph_bundle_icon_preprocess_page(&$variables) {
  $admin_theme = \Drupal::config('system.theme')->get('admin') ?: \Drupal::config('system.theme')->get('default');

  // No admin theme selected or value not existing. Cancel.
  if (empty($admin_theme) || !\Drupal::service('theme_handler')->themeExists($admin_theme)) {
    return;
  }

  $admin_theme_name = \Drupal::service('theme_handler')->getName($admin_theme);

  $admin_context = \Drupal::service('router.admin_context');
  if ($admin_context->isAdminRoute() && $admin_theme_name) {
    $variables['#attached']['library'][] = 'paragraph_bundle_icon/paragraph-bundle-icon-admin';
  }
}

/**
 * Implements hook_theme().
 */
function paragraph_bundle_icon_theme($existing, $type, $theme, $path) {
  return [
    'paragraph__icon_bundle' => [
      'base hook' => 'paragraph',
    ],

  ];
}