Drupal 8.0.0 beta 12. More info: https://www.drupal.org/node/2514176

core/modules/language/src/Entity/ConfigurableLanguage.php

@@ -0,0 +1,269 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\language\Entity\ConfigurableLanguage.
+ */
+
+namespace Drupal\language\Entity;
+
+use Drupal\Core\Config\Entity\ConfigEntityBase;
+use Drupal\Core\Entity\EntityStorageInterface;
+use Drupal\Core\Language\LanguageManager;
+use Drupal\language\ConfigurableLanguageManager;
+use Drupal\language\ConfigurableLanguageManagerInterface;
+use Drupal\language\Exception\DeleteDefaultLanguageException;
+use Drupal\language\ConfigurableLanguageInterface;
+
+/**
+ * Defines the ConfigurableLanguage entity.
+ *
+ * @ConfigEntityType(
+ *   id = "configurable_language",
+ *   label = @Translation("Language"),
+ *   handlers = {
+ *     "list_builder" = "Drupal\language\LanguageListBuilder",
+ *     "access" = "Drupal\language\LanguageAccessControlHandler",
+ *     "form" = {
+ *       "add" = "Drupal\language\Form\LanguageAddForm",
+ *       "edit" = "Drupal\language\Form\LanguageEditForm",
+ *       "delete" = "Drupal\language\Form\LanguageDeleteForm"
+ *     }
+ *   },
+ *   admin_permission = "administer languages",
+ *   config_prefix = "entity",
+ *   entity_keys = {
+ *     "id" = "id",
+ *     "label" = "label",
+ *     "weight" = "weight"
+ *   },
+ *   links = {
+ *     "delete-form" = "/admin/config/regional/language/delete/{configurable_language}",
+ *     "edit-form" = "/admin/config/regional/language/edit/{configurable_language}",
+ *     "collection" = "/admin/config/regional/language",
+ *   }
+ * )
+ */
+class ConfigurableLanguage extends ConfigEntityBase implements ConfigurableLanguageInterface {
+
+  /**
+   * The language ID (machine name).
+   *
+   * @var string
+   */
+  protected $id;
+
+  /**
+   * The human-readable label for the language.
+   *
+   * @var string
+   */
+  protected $label;
+
+  /**
+   * The direction of language, either DIRECTION_LTR or DIRECTION_RTL.
+   *
+   * @var integer
+   */
+  protected $direction = self::DIRECTION_LTR;
+
+  /**
+   * The weight of the language, used in lists of languages.
+   *
+   * @var integer
+   */
+  protected $weight = 0;
+
+  /**
+   * Locked languages cannot be edited.
+   *
+   * @var bool
+   */
+  protected $locked = FALSE;
+
+  /**
+   * Used during saving to detect when the site becomes multilingual.
+   *
+   * This property is not saved to the language entity, but is needed for
+   * detecting when to rebuild the services.
+   *
+   * @see \Drupal\language\Entity\ConfigurableLanguage::preSave()
+   * @see \Drupal\language\Entity\ConfigurableLanguage::postSave()
+   *
+   * @var bool
+   */
+  protected $preSaveMultilingual;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function isDefault() {
+    return static::getDefaultLangcode() == $this->id();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function isLocked() {
+    return (bool) $this->locked;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function preSave(EntityStorageInterface $storage) {
+    parent::preSave($storage);
+    // Store whether or not the site is already multilingual so that we can
+    // rebuild services if necessary during
+    // \Drupal\language\Entity\ConfigurableLanguage::postSave().
+    $this->preSaveMultilingual = \Drupal::languageManager()->isMultilingual();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function postSave(EntityStorageInterface $storage, $update = TRUE) {
+    parent::postSave($storage, $update);
+
+    $language_manager = \Drupal::languageManager();
+    $language_manager->reset();
+    if (!$this->isLocked() && $language_manager instanceof ConfigurableLanguageManagerInterface && !$this->isSyncing()) {
+      $language_manager->updateLockedLanguageWeights();
+    }
+
+    // Update URL Prefixes for all languages after the
+    // LanguageManagerInterface::getLanguages() cache is flushed.
+    language_negotiation_url_prefixes_update();
+
+    // If after adding this language the site will become multilingual, we need
+    // to rebuild language services.
+    if (!$this->preSaveMultilingual && !$update && $language_manager instanceof ConfigurableLanguageManagerInterface) {
+      $language_manager::rebuildServices();
+    }
+    if (!$update) {
+      // Install any available language configuration overrides for the language.
+      \Drupal::service('language.config_factory_override')->installLanguageOverrides($this->id());
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   *
+   * @throws \DeleteDefaultLanguageException
+   *   Exception thrown if we're trying to delete the default language entity.
+   *   This is not allowed as a site must have a default language.
+   */
+  public static function preDelete(EntityStorageInterface $storage, array $entities) {
+    $default_langcode = static::getDefaultLangcode();
+    foreach ($entities as $entity) {
+      if ($entity->id() == $default_langcode && !$entity->isUninstalling()) {
+        throw new DeleteDefaultLanguageException('Can not delete the default language');
+      }
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function postDelete(EntityStorageInterface $storage, array $entities) {
+    parent::postDelete($storage, $entities);
+    $language_manager = \Drupal::languageManager();
+    $language_manager->reset();
+    $entity = reset($entities);
+    if ($language_manager instanceof ConfigurableLanguageManagerInterface && !$entity->isUninstalling() && !$entity->isSyncing()) {
+      $language_manager->updateLockedLanguageWeights();
+    }
+    // If after deleting this language the site will become monolingual, we need
+    // to rebuild language services.
+    if (!\Drupal::languageManager()->isMultilingual()) {
+      ConfigurableLanguageManager::rebuildServices();
+    }
+  }
+
+  /**
+   * Gets the default langcode.
+   *
+   * @return string
+   *   The current default langcode.
+   */
+  protected static function getDefaultLangcode() {
+    $language = \Drupal::service('language.default')->get();
+    return $language->getId();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getName() {
+    return $this->label();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setName($name) {
+    $this->label = $name;
+
+    return $this;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getId() {
+    return $this->id();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getDirection() {
+    return $this->direction;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getWeight() {
+    return $this->weight;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setWeight($weight) {
+    $this->weight = $weight;
+    return $this;
+  }
+
+  /**
+   * Creates a configurable language object from a langcode.
+   *
+   * @param string $langcode
+   *   The language code to use to create the object.
+   *
+   * @return $this
+   *
+   * @see \Drupal\Core\Language\LanguageManager::getStandardLanguageList()
+   */
+  public static function createFromLangcode($langcode) {
+    $standard_languages = LanguageManager::getStandardLanguageList();
+    if (!isset($standard_languages[$langcode])) {
+      // Drupal does not know about this language, so we set its values with the
+      // best guess. The user will be able to edit afterwards.
+      return static::create(array(
+        'id' => $langcode,
+        'label' => $langcode,
+      ));
+    }
+    else {
+      // A known predefined language, details will be filled in properly.
+      return static::create(array(
+        'id' => $langcode,
+        'label' => $standard_languages[$langcode][0],
+        'direction' => isset($standard_languages[$langcode][2]) ? $standard_languages[$langcode][2] : static::DIRECTION_LTR,
+      ));
+    }
+  }
+
+}