annotate core/modules/language/src/EventSubscriber/ConfigSubscriber.php @ 19:fa3358dc1485 tip

Add ndrum files
author Chris Cannam
date Wed, 28 Aug 2019 13:14:47 +0100
parents 7a779792577d
children
rev   line source
Chris@0 1 <?php
Chris@0 2
Chris@0 3 namespace Drupal\language\EventSubscriber;
Chris@0 4
Chris@0 5 use Drupal\Core\Config\ConfigFactoryInterface;
Chris@0 6 use Drupal\Core\Language\Language;
Chris@0 7 use Drupal\Core\Language\LanguageDefault;
Chris@0 8 use Drupal\Core\Language\LanguageManagerInterface;
Chris@0 9 use Drupal\Core\Config\ConfigCrudEvent;
Chris@0 10 use Drupal\Core\Config\ConfigEvents;
Chris@0 11 use Drupal\language\ConfigurableLanguageManager;
Chris@0 12 use Drupal\language\HttpKernel\PathProcessorLanguage;
Chris@0 13 use Drupal\language\LanguageNegotiatorInterface;
Chris@0 14 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
Chris@0 15
Chris@0 16 /**
Chris@0 17 * Deletes the container if default language has changed.
Chris@0 18 */
Chris@0 19 class ConfigSubscriber implements EventSubscriberInterface {
Chris@0 20
Chris@0 21 /**
Chris@0 22 * The language manager.
Chris@0 23 *
Chris@0 24 * @var \Drupal\Core\Language\LanguageManagerInterface
Chris@0 25 */
Chris@0 26 protected $languageManager;
Chris@0 27
Chris@0 28 /**
Chris@0 29 * The default language.
Chris@0 30 *
Chris@0 31 * @var \Drupal\Core\Language\LanguageDefault
Chris@0 32 */
Chris@0 33 protected $languageDefault;
Chris@0 34
Chris@0 35 /**
Chris@0 36 * The configuration factory.
Chris@0 37 *
Chris@0 38 * @var \Drupal\Core\Config\ConfigFactoryInterface
Chris@0 39 */
Chris@0 40 protected $configFactory;
Chris@0 41
Chris@0 42 /**
Chris@0 43 * The language negotiator.
Chris@0 44 *
Chris@0 45 * @var \Drupal\language\LanguageNegotiatorInterface
Chris@0 46 */
Chris@0 47 protected $languageNegotiator;
Chris@0 48
Chris@0 49 /**
Chris@0 50 * The language path processor.
Chris@0 51 *
Chris@0 52 * @var \Drupal\language\HttpKernel\PathProcessorLanguage
Chris@0 53 */
Chris@0 54 protected $pathProcessorLanguage;
Chris@0 55
Chris@0 56 /**
Chris@0 57 * Constructs a new class object.
Chris@0 58 *
Chris@0 59 * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
Chris@0 60 * The language manager.
Chris@0 61 * @param \Drupal\Core\Language\LanguageDefault $language_default
Chris@0 62 * The default language.
Chris@0 63 * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
Chris@0 64 * The configuration factory.
Chris@0 65 * @param \Drupal\language\LanguageNegotiatorInterface $language_negotiator
Chris@0 66 * The language negotiator.
Chris@0 67 */
Chris@0 68 public function __construct(LanguageManagerInterface $language_manager, LanguageDefault $language_default, ConfigFactoryInterface $config_factory, LanguageNegotiatorInterface $language_negotiator) {
Chris@0 69 $this->languageManager = $language_manager;
Chris@0 70 $this->languageDefault = $language_default;
Chris@0 71 $this->configFactory = $config_factory;
Chris@0 72 $this->languageNegotiator = $language_negotiator;
Chris@0 73 }
Chris@0 74
Chris@0 75 /**
Chris@0 76 * Causes the container to be rebuilt on the next request.
Chris@0 77 *
Chris@0 78 * This event subscriber assumes that the new default langcode and old default
Chris@0 79 * langcode are valid langcodes. If the schema definition of either
Chris@0 80 * system.site:default_langcode or language.negotiation::url.prefixes changes
Chris@0 81 * then this event must be changed to work with both the old and new schema
Chris@0 82 * definition so this event is update safe.
Chris@0 83 *
Chris@12 84 * @param \Drupal\Core\Config\ConfigCrudEvent $event
Chris@0 85 * The configuration event.
Chris@0 86 */
Chris@0 87 public function onConfigSave(ConfigCrudEvent $event) {
Chris@0 88 $saved_config = $event->getConfig();
Chris@0 89 if ($saved_config->getName() == 'system.site' && $event->isChanged('default_langcode')) {
Chris@0 90 $new_default_langcode = $saved_config->get('default_langcode');
Chris@0 91 $default_language = $this->configFactory->get('language.entity.' . $new_default_langcode);
Chris@0 92 // During an import the language might not exist yet.
Chris@0 93 if (!$default_language->isNew()) {
Chris@0 94 $this->languageDefault->set(new Language($default_language->get()));
Chris@0 95 $this->languageManager->reset();
Chris@0 96
Chris@0 97 // Directly update language negotiation settings instead of calling
Chris@0 98 // language_negotiation_url_prefixes_update() to ensure that the code
Chris@0 99 // obeys the hook_update_N() restrictions.
Chris@0 100 $negotiation_config = $this->configFactory->getEditable('language.negotiation');
Chris@0 101 $negotiation_changed = FALSE;
Chris@0 102 $url_prefixes = $negotiation_config->get('url.prefixes');
Chris@0 103 $old_default_langcode = $saved_config->getOriginal('default_langcode');
Chris@0 104 if (empty($url_prefixes[$old_default_langcode])) {
Chris@0 105 $negotiation_config->set('url.prefixes.' . $old_default_langcode, $old_default_langcode);
Chris@0 106 $negotiation_changed = TRUE;
Chris@0 107 }
Chris@0 108 if (empty($url_prefixes[$new_default_langcode])) {
Chris@0 109 $negotiation_config->set('url.prefixes.' . $new_default_langcode, '');
Chris@0 110 $negotiation_changed = TRUE;
Chris@0 111 }
Chris@0 112 if ($negotiation_changed) {
Chris@0 113 $negotiation_config->save(TRUE);
Chris@0 114 }
Chris@0 115 }
Chris@0 116 // Trigger a container rebuild on the next request by invalidating it.
Chris@0 117 ConfigurableLanguageManager::rebuildServices();
Chris@0 118 }
Chris@0 119 elseif ($saved_config->getName() == 'language.types' && $event->isChanged('negotiation')) {
Chris@0 120 // If the negotiation configuration changed the language negotiator and
Chris@0 121 // the language path processor have to be reset so that they regenerate
Chris@0 122 // the method instances and also sort them accordingly to the new config.
Chris@0 123 $this->languageNegotiator->reset();
Chris@0 124 if (isset($this->pathProcessorLanguage)) {
Chris@0 125 $this->pathProcessorLanguage->reset();
Chris@0 126 }
Chris@0 127 }
Chris@0 128 }
Chris@0 129
Chris@0 130 /**
Chris@0 131 * Injects the language path processors on multilingual site configuration.
Chris@0 132 *
Chris@0 133 * @param \Drupal\language\HttpKernel\PathProcessorLanguage $path_processor_language
Chris@0 134 * The language path processor.
Chris@0 135 */
Chris@0 136 public function setPathProcessorLanguage(PathProcessorLanguage $path_processor_language) {
Chris@0 137 $this->pathProcessorLanguage = $path_processor_language;
Chris@0 138 }
Chris@0 139
Chris@0 140 /**
Chris@0 141 * {@inheritdoc}
Chris@0 142 */
Chris@0 143 public static function getSubscribedEvents() {
Chris@0 144 $events[ConfigEvents::SAVE][] = ['onConfigSave', 0];
Chris@0 145 return $events;
Chris@0 146 }
Chris@0 147
Chris@0 148 }