cookies-1.0.3/modules/cookies_ga/cookies_ga.module

<?php

/**
 * @file
 * Contains cookies_ga.module.
 */

use Drupal\cookies\Constants\CookiesConstants;
use Drupal\Core\Asset\AttachedAssetsInterface;
use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 */
function cookies_ga_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    // Main module help for the cookies_ga module.
    case 'help.page.cookies_ga':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('Submodule of cookies to manage Google Analytics implemented by so named module.') . '</p>';
      return $output;

    default:
  }
}

/**
 * Implements hook_page_attachments().
 */
function cookies_ga_page_attachments(array &$attachments) {
  $doKo = Drupal::service('cookies.knock_out')->doKnockOut();
  if ($doKo && !empty($attachments['#attached']['html_head'])) {
    $scripts = [
      'google_analytics_tracking_script',
      'google_analytics_tracking_file',
    ];
    foreach ($attachments['#attached']['html_head'] as &$head_tag) {
      if (in_array($head_tag[1], $scripts)) {
        $attr = (isset($head_tag[0]['#attributes'])) ? $head_tag[0]['#attributes'] : [];
        $attr = array_merge(
          $attr,
          [
            'type' => CookiesConstants::COOKIES_SCRIPT_KO_TYPE,
            'id' => 'cookies_ga_' . $head_tag[1],
            'data-cookieconsent' => 'analytics',
          ],
        );
        $head_tag[0]['#attributes'] = $attr;
        break;
      }
    }
    $attachments['#attached']['library'][] = 'cookies_ga/analytics';
  }
}

/**
 * Implements hook_js_alter().
 *
 * Disable analytics.js on page load.
 */
function cookies_ga_js_alter(&$javascript, AttachedAssetsInterface $assets) {
  $doKo = Drupal::service('cookies.knock_out')->doKnockOut();
  if ($doKo) {
    $module_path = \Drupal::service('extension.list.module')->getPath('google_analytics');
    $scripts = [
      'ga' => $module_path . '/js/google_analytics.js',
      'ga_debug' => $module_path . '/js/google_analytics.debug.js',
    ];
    foreach ($scripts as $key => $script) {
      if (isset($javascript[$script])) {
        $javascript[$script]['preprocess'] = FALSE;
        $javascript[$script]['attributes']['type'] = CookiesConstants::COOKIES_SCRIPT_KO_TYPE;
        $javascript[$script]['attributes']['id'] = 'cookies_ga_' . $key;
        $javascript[$script]['attributes']['data-cookieconsent'] = 'analytics';
      }
    }
  }
}