Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\language;
Chris@0: 
Chris@0: use Drupal\Core\Config\BootstrapConfigStorageFactory;
Chris@0: use Drupal\Core\DependencyInjection\ContainerBuilder;
Chris@0: use Drupal\Core\DependencyInjection\ServiceProviderBase;
Chris@0: use Drupal\Core\Language\LanguageInterface;
Chris@0: use Symfony\Component\DependencyInjection\Reference;
Chris@0: 
Chris@0: /**
Chris@0:  * Overrides the language_manager service to point to language's module one.
Chris@0:  */
Chris@0: class LanguageServiceProvider extends ServiceProviderBase {
Chris@0: 
Chris@0:   const CONFIG_PREFIX = 'language.entity.';
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function register(ContainerBuilder $container) {
Chris@0:     // The following services are needed only on multilingual sites.
Chris@0:     if ($this->isMultilingual()) {
Chris@0:       $container->register('language_request_subscriber', 'Drupal\language\EventSubscriber\LanguageRequestSubscriber')
Chris@0:         ->addTag('event_subscriber')
Chris@0:         ->addArgument(new Reference('language_manager'))
Chris@0:         ->addArgument(new Reference('language_negotiator'))
Chris@0:         ->addArgument(new Reference('string_translation'))
Chris@0:         ->addArgument(new Reference('current_user'));
Chris@0: 
Chris@0:       $container->register('path_processor_language', 'Drupal\language\HttpKernel\PathProcessorLanguage')
Chris@0:         ->addTag('path_processor_inbound', ['priority' => 300])
Chris@0:         ->addTag('path_processor_outbound', ['priority' => 100])
Chris@0:         ->addArgument(new Reference('config.factory'))
Chris@0:         ->addArgument(new Reference('language_manager'))
Chris@0:         ->addArgument(new Reference('language_negotiator'))
Chris@0:         ->addArgument(new Reference('current_user'))
Chris@0:         ->addArgument(new Reference('language.config_subscriber'))
Chris@0:         ->addMethodCall('initConfigSubscriber');
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function alter(ContainerBuilder $container) {
Chris@0:     $definition = $container->getDefinition('language_manager');
Chris@0:     $definition->setClass('Drupal\language\ConfigurableLanguageManager')
Chris@0:       ->addArgument(new Reference('config.factory'))
Chris@0:       ->addArgument(new Reference('module_handler'))
Chris@0:       ->addArgument(new Reference('language.config_factory_override'))
Chris@0:       ->addArgument(new Reference('request_stack'));
Chris@0:     if ($default_language_values = $this->getDefaultLanguageValues()) {
Chris@0:       $container->setParameter('language.default_values', $default_language_values);
Chris@0:     }
Chris@0: 
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Checks whether the site is multilingual.
Chris@0:    *
Chris@0:    * @return bool
Chris@0:    *   TRUE if the site is multilingual, FALSE otherwise.
Chris@0:    */
Chris@0:   protected function isMultilingual() {
Chris@0:     // Assign the prefix to a local variable so it can be used in an anonymous
Chris@0:     // function.
Chris@0:     $prefix = static::CONFIG_PREFIX;
Chris@0:     // @todo Try to swap out for config.storage to take advantage of database
Chris@0:     //   and caching. This might prove difficult as this is called before the
Chris@0:     //   container has finished building.
Chris@0:     $config_storage = BootstrapConfigStorageFactory::get();
Chris@0:     $config_ids = array_filter($config_storage->listAll($prefix), function ($config_id) use ($prefix) {
Chris@0:       return $config_id != $prefix . LanguageInterface::LANGCODE_NOT_SPECIFIED && $config_id != $prefix . LanguageInterface::LANGCODE_NOT_APPLICABLE;
Chris@0:     });
Chris@0:     return count($config_ids) > 1;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Gets the default language values.
Chris@0:    *
Chris@0:    * @return array|bool
Chris@0:    *   Returns the default language values for the language configured in
Chris@0:    *   system.site:default_langcode if the corresponding configuration entity
Chris@0:    *   exists, otherwise FALSE.
Chris@0:    */
Chris@0:   protected function getDefaultLanguageValues() {
Chris@0:     $config_storage = BootstrapConfigStorageFactory::get();
Chris@0:     $system = $config_storage->read('system.site');
Chris@0:     $default_language = $config_storage->read(static::CONFIG_PREFIX . $system['default_langcode']);
Chris@0:     if (is_array($default_language)) {
Chris@0:       return $default_language;
Chris@0:     }
Chris@0:     return FALSE;
Chris@0:   }
Chris@0: 
Chris@0: }