annotate core/modules/language/src/Element/LanguageConfiguration.php @ 19:fa3358dc1485 tip

Add ndrum files
author Chris Cannam
date Wed, 28 Aug 2019 13:14:47 +0100
parents af1871eacc83
children
rev   line source
Chris@0 1 <?php
Chris@0 2
Chris@0 3 namespace Drupal\language\Element;
Chris@0 4
Chris@18 5 use Drupal\Core\Url;
Chris@0 6 use Drupal\Core\Form\FormStateInterface;
Chris@0 7 use Drupal\Core\Language\LanguageInterface;
Chris@0 8 use Drupal\Core\Render\Element\FormElement;
Chris@0 9
Chris@0 10 /**
Chris@0 11 * Defines an element for language configuration for a single field.
Chris@0 12 *
Chris@0 13 * @FormElement("language_configuration")
Chris@0 14 */
Chris@0 15 class LanguageConfiguration extends FormElement {
Chris@0 16
Chris@0 17 /**
Chris@0 18 * {@inheritdoc}
Chris@0 19 */
Chris@0 20 public function getInfo() {
Chris@0 21 $class = get_class($this);
Chris@0 22 return [
Chris@0 23 '#input' => TRUE,
Chris@0 24 '#tree' => TRUE,
Chris@0 25 '#process' => [
Chris@0 26 [$class, 'processLanguageConfiguration'],
Chris@0 27 ],
Chris@0 28 ];
Chris@0 29 }
Chris@0 30
Chris@0 31 /**
Chris@0 32 * Process handler for the language_configuration form element.
Chris@0 33 */
Chris@0 34 public static function processLanguageConfiguration(&$element, FormStateInterface $form_state, &$form) {
Chris@0 35 $options = isset($element['#options']) ? $element['#options'] : [];
Chris@0 36 // Avoid validation failure since we are moving the '#options' key in the
Chris@0 37 // nested 'language' select element.
Chris@0 38 unset($element['#options']);
Chris@0 39 /** @var \Drupal\language\Entity\ContentLanguageSettings $default_config */
Chris@0 40 $default_config = $element['#default_value'];
Chris@0 41 $element['langcode'] = [
Chris@0 42 '#type' => 'select',
Chris@0 43 '#title' => t('Default language'),
Chris@0 44 '#options' => $options + static::getDefaultOptions(),
Chris@18 45 '#description' => t('Explanation of the language options is found on the <a href=":languages_list_page">languages list page</a>.', [':languages_list_page' => Url::fromRoute('entity.configurable_language.collection')->toString()]),
Chris@0 46 '#default_value' => ($default_config != NULL) ? $default_config->getDefaultLangcode() : LanguageInterface::LANGCODE_SITE_DEFAULT,
Chris@0 47 ];
Chris@0 48
Chris@0 49 $element['language_alterable'] = [
Chris@0 50 '#type' => 'checkbox',
Chris@0 51 '#title' => t('Show language selector on create and edit pages'),
Chris@0 52 '#default_value' => ($default_config != NULL) ? $default_config->isLanguageAlterable() : FALSE,
Chris@0 53 ];
Chris@0 54
Chris@0 55 // Add the entity type and bundle information to the form if they are set.
Chris@0 56 // They will be used, in the submit handler, to generate the names of the
Chris@0 57 // configuration entities that will store the settings and are a way to uniquely
Chris@0 58 // identify the entity.
Chris@0 59 $language = $form_state->get('language') ?: [];
Chris@0 60 $language += [
Chris@0 61 $element['#name'] => [
Chris@0 62 'entity_type' => $element['#entity_information']['entity_type'],
Chris@0 63 'bundle' => $element['#entity_information']['bundle'],
Chris@0 64 ],
Chris@0 65 ];
Chris@0 66 $form_state->set('language', $language);
Chris@0 67
Chris@0 68 // Do not add the submit callback for the language content settings page,
Chris@0 69 // which is handled separately.
Chris@0 70 if ($form['#form_id'] != 'language_content_settings_form') {
Chris@0 71 // Determine where to attach the language_configuration element submit
Chris@0 72 // handler.
Chris@0 73 // @todo Form API: Allow form widgets/sections to declare #submit
Chris@0 74 // handlers.
Chris@0 75 $submit_name = isset($form['actions']['save_continue']) ? 'save_continue' : 'submit';
Chris@0 76 if (isset($form['actions'][$submit_name]['#submit']) && array_search('language_configuration_element_submit', $form['actions'][$submit_name]['#submit']) === FALSE) {
Chris@0 77 $form['actions'][$submit_name]['#submit'][] = 'language_configuration_element_submit';
Chris@0 78 }
Chris@0 79 elseif (array_search('language_configuration_element_submit', $form['#submit']) === FALSE) {
Chris@0 80 $form['#submit'][] = 'language_configuration_element_submit';
Chris@0 81 }
Chris@0 82 }
Chris@0 83 return $element;
Chris@0 84 }
Chris@0 85
Chris@0 86 /**
Chris@0 87 * Returns the default options for the language configuration form element.
Chris@0 88 *
Chris@0 89 * @return array
Chris@0 90 * An array containing the default options.
Chris@0 91 */
Chris@0 92 protected static function getDefaultOptions() {
Chris@0 93 $language_options = [
Chris@0 94 LanguageInterface::LANGCODE_SITE_DEFAULT => t("Site's default language (@language)", ['@language' => static::languageManager()->getDefaultLanguage()->getName()]),
Chris@0 95 'current_interface' => t('Interface text language selected for page'),
Chris@0 96 'authors_default' => t("Author's preferred language"),
Chris@0 97 ];
Chris@0 98
Chris@0 99 $languages = static::languageManager()->getLanguages(LanguageInterface::STATE_ALL);
Chris@0 100 foreach ($languages as $langcode => $language) {
Chris@0 101 $language_options[$langcode] = $language->isLocked() ? t('- @name -', ['@name' => $language->getName()]) : $language->getName();
Chris@0 102 }
Chris@0 103
Chris@0 104 return $language_options;
Chris@0 105 }
Chris@0 106
Chris@0 107 /**
Chris@0 108 * Wraps the language manager.
Chris@0 109 *
Chris@0 110 * @return \Drupal\Core\Language\LanguageManagerInterface
Chris@0 111 */
Chris@0 112 protected static function languageManager() {
Chris@0 113 return \Drupal::languageManager();
Chris@0 114 }
Chris@0 115
Chris@0 116 }