TRUE, '#tree' => TRUE, '#process' => [ [$class, 'processLanguageConfiguration'], ], ]; } /** * Process handler for the language_configuration form element. */ public static function processLanguageConfiguration(&$element, FormStateInterface $form_state, &$form) { $options = isset($element['#options']) ? $element['#options'] : []; // Avoid validation failure since we are moving the '#options' key in the // nested 'language' select element. unset($element['#options']); /** @var \Drupal\language\Entity\ContentLanguageSettings $default_config */ $default_config = $element['#default_value']; $element['langcode'] = [ '#type' => 'select', '#title' => t('Default language'), '#options' => $options + static::getDefaultOptions(), '#description' => t('Explanation of the language options is found on the languages list page.', [':languages_list_page' => \Drupal::url('entity.configurable_language.collection')]), '#default_value' => ($default_config != NULL) ? $default_config->getDefaultLangcode() : LanguageInterface::LANGCODE_SITE_DEFAULT, ]; $element['language_alterable'] = [ '#type' => 'checkbox', '#title' => t('Show language selector on create and edit pages'), '#default_value' => ($default_config != NULL) ? $default_config->isLanguageAlterable() : FALSE, ]; // Add the entity type and bundle information to the form if they are set. // They will be used, in the submit handler, to generate the names of the // configuration entities that will store the settings and are a way to uniquely // identify the entity. $language = $form_state->get('language') ?: []; $language += [ $element['#name'] => [ 'entity_type' => $element['#entity_information']['entity_type'], 'bundle' => $element['#entity_information']['bundle'], ], ]; $form_state->set('language', $language); // Do not add the submit callback for the language content settings page, // which is handled separately. if ($form['#form_id'] != 'language_content_settings_form') { // Determine where to attach the language_configuration element submit // handler. // @todo Form API: Allow form widgets/sections to declare #submit // handlers. $submit_name = isset($form['actions']['save_continue']) ? 'save_continue' : 'submit'; if (isset($form['actions'][$submit_name]['#submit']) && array_search('language_configuration_element_submit', $form['actions'][$submit_name]['#submit']) === FALSE) { $form['actions'][$submit_name]['#submit'][] = 'language_configuration_element_submit'; } elseif (array_search('language_configuration_element_submit', $form['#submit']) === FALSE) { $form['#submit'][] = 'language_configuration_element_submit'; } } return $element; } /** * Returns the default options for the language configuration form element. * * @return array * An array containing the default options. */ protected static function getDefaultOptions() { $language_options = [ LanguageInterface::LANGCODE_SITE_DEFAULT => t("Site's default language (@language)", ['@language' => static::languageManager()->getDefaultLanguage()->getName()]), 'current_interface' => t('Interface text language selected for page'), 'authors_default' => t("Author's preferred language"), ]; $languages = static::languageManager()->getLanguages(LanguageInterface::STATE_ALL); foreach ($languages as $langcode => $language) { $language_options[$langcode] = $language->isLocked() ? t('- @name -', ['@name' => $language->getName()]) : $language->getName(); } return $language_options; } /** * Wraps the language manager. * * @return \Drupal\Core\Language\LanguageManagerInterface */ protected static function languageManager() { return \Drupal::languageManager(); } }