timezone_detect.module in Timezone Detect 8

Module provides automatic timezone detection via javascript.

File

timezone_detect.module

<?php

/**
 * @file
 * Module provides automatic timezone detection via javascript.
 */
use Drupal\timezone_detect\TimezoneDetectInterface;
use Drupal\user\UserInterface;

/**
 * Implements hook_user_login().
 */
function timezone_detect_user_login(UserInterface $account) {
  $timezone_detect_settings = \Drupal::config('timezone_detect.settings');
  if ($timezone_detect_settings
    ->get('mode') === TimezoneDetectInterface::MODE_LOGIN || empty($account->timezone)) {

    // Set session flag to update user's timezone. Note that we cannot add the
    // js directly from this function, as the user is redirected after this
    // hook fires.
    $_SESSION['timezone_detect']['update_timezone'] = TRUE;
  }
}

/**
 * Implements hook_page_attachments().
 */
function timezone_detect_page_attachments(array &$attachments) {

  // Include the javascript only when appropriate.
  if (isset($_SESSION['timezone_detect']['update_timezone']) || \Drupal::currentUser()
    ->isAuthenticated() && \Drupal::config('timezone_detect.settings')
    ->get('mode') === TimezoneDetectInterface::MODE_ALWAYS) {
    $account = \Drupal::currentUser()
      ->getAccount();

    // Store the current timezone for comparison.
    $timezone = $account
      ->getTimeZone();
    if (!empty($_SESSION['timezone_detect']['current_timezone'])) {
      $timezone = $_SESSION['timezone_detect']['current_timezone'];
    }
    $attachments['#attached']['library'][] = 'timezone_detect/init';
    $attachments['#attached']['drupalSettings']['timezone_detect'] = [
      'current_timezone' => $timezone,
      'token' => \Drupal::csrfToken()
        ->get(),
    ];
  }
}

Functions

Name	Description
timezone_detect_page_attachments	Implements hook_page_attachments().
timezone_detect_user_login	Implements hook_user_login().