www.aleph1.co.uk Git - yaffs-website/blob - web/core/modules/user/src/Plugin/LanguageNegotiation/LanguageNegotiationUser.php

   1 <?php
   2
   3 namespace Drupal\user\Plugin\LanguageNegotiation;
   4
   5 use Drupal\language\LanguageNegotiationMethodBase;
   6 use Symfony\Component\HttpFoundation\Request;
   7
   8 /**
   9  * Class for identifying language from the user preferences.
  10  *
  11  * @LanguageNegotiation(
  12  *   id = \Drupal\user\Plugin\LanguageNegotiation\LanguageNegotiationUser::METHOD_ID,
  13  *   weight = -4,
  14  *   name = @Translation("User"),
  15  *   description = @Translation("Follow the user's language preference.")
  16  * )
  17  */
  18 class LanguageNegotiationUser extends LanguageNegotiationMethodBase {
  19
  20   /**
  21    * The language negotiation method id.
  22    */
  23   const METHOD_ID = 'language-user';
  24
  25   /**
  26    * {@inheritdoc}
  27    */
  28   public function getLangcode(Request $request = NULL) {
  29     $langcode = NULL;
  30
  31     // User preference (only for authenticated users).
  32     if ($this->languageManager && $this->currentUser->isAuthenticated()) {
  33       $preferred_langcode = $this->currentUser->getPreferredLangcode(FALSE);
  34       $languages = $this->languageManager->getLanguages();
  35       if (!empty($preferred_langcode) && isset($languages[$preferred_langcode])) {
  36         $langcode = $preferred_langcode;
  37       }
  38     }
  39
  40     // No language preference from the user.
  41     return $langcode;
  42   }
  43
  44 }