diff core/modules/locale/src/LocaleConfigManager.php @ 0:c75dbcec494b

Initial commit from drush-created site

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/locale/src/LocaleConfigManager.php	Thu Jul 05 14:24:15 2018 +0000
@@ -0,0 +1,651 @@
+<?php
+
+namespace Drupal\locale;
+
+use Drupal\Component\Utility\NestedArray;
+use Drupal\Core\Config\ConfigFactoryInterface;
+use Drupal\Core\Config\ConfigManagerInterface;
+use Drupal\Core\Config\StorageInterface;
+use Drupal\Core\Config\TypedConfigManagerInterface;
+use Drupal\Core\StringTranslation\TranslatableMarkup;
+use Drupal\Core\TypedData\TraversableTypedDataInterface;
+use Drupal\Core\TypedData\TypedDataInterface;
+use Drupal\language\ConfigurableLanguageManagerInterface;
+
+/**
+ * Manages configuration supported in part by interface translation.
+ *
+ * This manager is responsible to update configuration overrides and active
+ * translations when interface translation data changes. This allows Drupal to
+ * translate user roles, views, blocks, etc. after Drupal has been installed
+ * using the locale module's storage. When translations change in locale,
+ * LocaleConfigManager::updateConfigTranslations() is invoked to update the
+ * corresponding storage of the translation in the original config object or an
+ * override.
+ *
+ * In turn when translated configuration or configuration language overrides are
+ * changed, it is the responsibility of LocaleConfigSubscriber to update locale
+ * storage.
+ *
+ * By design locale module only deals with sources in English.
+ *
+ * @see \Drupal\locale\LocaleConfigSubscriber
+ */
+class LocaleConfigManager {
+
+  /**
+   * The storage instance for reading configuration data.
+   *
+   * @var \Drupal\Core\Config\StorageInterface
+   */
+  protected $configStorage;
+
+  /**
+   * The string storage for reading and writing translations.
+   *
+   * @var \Drupal\locale\StringStorageInterface;
+   */
+  protected $localeStorage;
+
+  /**
+   * Array with preloaded string translations.
+   *
+   * @var array
+   */
+  protected $translations;
+
+  /**
+   * The configuration factory.
+   *
+   * @var \Drupal\Core\Config\ConfigFactoryInterface
+   */
+  protected $configFactory;
+
+  /**
+   * The language manager.
+   *
+   * @var \Drupal\language\ConfigurableLanguageManagerInterface
+   */
+  protected $languageManager;
+
+  /**
+   * The typed config manager.
+   *
+   * @var \Drupal\Core\Config\TypedConfigManagerInterface
+   */
+  protected $typedConfigManager;
+
+  /**
+   * Whether or not configuration translations are being updated from locale.
+   *
+   * @see self::isUpdatingFromLocale()
+   *
+   * @var bool
+   */
+  protected $isUpdatingFromLocale = FALSE;
+
+  /**
+   * The locale default config storage instance.
+   *
+   * @var \Drupal\locale\LocaleDefaultConfigStorage
+   */
+  protected $defaultConfigStorage;
+
+  /**
+   * The configuration manager.
+   *
+   * @var \Drupal\Core\Config\ConfigManagerInterface
+   */
+  protected $configManager;
+
+  /**
+   * Creates a new typed configuration manager.
+   *
+   * @param \Drupal\Core\Config\StorageInterface $config_storage
+   *   The storage object to use for reading configuration data.
+   * @param \Drupal\locale\StringStorageInterface $locale_storage
+   *   The locale storage to use for reading string translations.
+   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
+   *   The configuration factory
+   * @param \Drupal\Core\Config\TypedConfigManagerInterface $typed_config
+   *   The typed configuration manager.
+   * @param \Drupal\language\ConfigurableLanguageManagerInterface $language_manager
+   *   The language manager.
+   * @param \Drupal\locale\LocaleDefaultConfigStorage $default_config_storage
+   *   The locale default configuration storage.
+   * @param \Drupal\Core\Config\ConfigManagerInterface $config_manager
+   *   The configuration manager.
+   */
+  public function __construct(StorageInterface $config_storage, StringStorageInterface $locale_storage, ConfigFactoryInterface $config_factory, TypedConfigManagerInterface $typed_config, ConfigurableLanguageManagerInterface $language_manager, LocaleDefaultConfigStorage $default_config_storage, ConfigManagerInterface $config_manager) {
+    $this->configStorage = $config_storage;
+    $this->localeStorage = $locale_storage;
+    $this->configFactory = $config_factory;
+    $this->typedConfigManager = $typed_config;
+    $this->languageManager = $language_manager;
+    $this->defaultConfigStorage = $default_config_storage;
+    $this->configManager = $config_manager;
+  }
+
+  /**
+   * Gets array of translated strings for Locale translatable configuration.
+   *
+   * @param string $name
+   *   Configuration object name.
+   *
+   * @return array
+   *   Array of Locale translatable elements of the default configuration in
+   *   $name.
+   */
+  public function getTranslatableDefaultConfig($name) {
+    if ($this->isSupported($name)) {
+      // Create typed configuration wrapper based on install storage data.
+      $data = $this->defaultConfigStorage->read($name);
+      $typed_config = $this->typedConfigManager->createFromNameAndData($name, $data);
+      if ($typed_config instanceof TraversableTypedDataInterface) {
+        return $this->getTranslatableData($typed_config);
+      }
+    }
+    return [];
+  }
+
+  /**
+   * Gets translatable configuration data for a typed configuration element.
+   *
+   * @param \Drupal\Core\TypedData\TypedDataInterface $element
+   *   Typed configuration element.
+   *
+   * @return array|\Drupal\Core\StringTranslation\TranslatableMarkup
+   *   A nested array matching the exact structure under $element with only the
+   *   elements that are translatable wrapped into a TranslatableMarkup. If the
+   *   provided $element is not traversable, the return value is a single
+   *   TranslatableMarkup.
+   */
+  protected function getTranslatableData(TypedDataInterface $element) {
+    $translatable = [];
+    if ($element instanceof TraversableTypedDataInterface) {
+      foreach ($element as $key => $property) {
+        $value = $this->getTranslatableData($property);
+        if (!empty($value)) {
+          $translatable[$key] = $value;
+        }
+      }
+    }
+    else {
+      // Something is only translatable by Locale if there is a string in the
+      // first place.
+      $value = $element->getValue();
+      $definition = $element->getDataDefinition();
+      if (!empty($definition['translatable']) && $value !== '' && $value !== NULL) {
+        $options = [];
+        if (isset($definition['translation context'])) {
+          $options['context'] = $definition['translation context'];
+        }
+        return new TranslatableMarkup($value, [], $options);
+      }
+    }
+    return $translatable;
+  }
+
+  /**
+   * Process the translatable data array with a given language.
+   *
+   * If the given language is translatable, will return the translated copy
+   * which will only contain strings that had translations. If the given
+   * language is English and is not translatable, will return a simplified
+   * array of the English source strings only.
+   *
+   * @param string $name
+   *   The configuration name.
+   * @param array $active
+   *   The active configuration data.
+   * @param array|\Drupal\Core\StringTranslation\TranslatableMarkup[] $translatable
+   *   The translatable array structure. A nested array matching the exact
+   *   structure under of the default configuration for $name with only the
+   *   elements that are translatable wrapped into a TranslatableMarkup.
+   * @param string $langcode
+   *   The language code to process the array with.
+   *
+   * @return array
+   *   Processed translatable data array. Will only contain translations
+   *   different from source strings or in case of untranslatable English, the
+   *   source strings themselves.
+   *
+   * @see self::getTranslatableData()
+   */
+  protected function processTranslatableData($name, array $active, array $translatable, $langcode) {
+    $translated = [];
+    foreach ($translatable as $key => $item) {
+      if (!isset($active[$key])) {
+        continue;
+      }
+      if (is_array($item)) {
+        // Only add this key if there was a translated value underneath.
+        $value = $this->processTranslatableData($name, $active[$key], $item, $langcode);
+        if (!empty($value)) {
+          $translated[$key] = $value;
+        }
+      }
+      else {
+        if (locale_is_translatable($langcode)) {
+          $value = $this->translateString($name, $langcode, $item->getUntranslatedString(), $item->getOption('context'));
+        }
+        else {
+          $value = $item->getUntranslatedString();
+        }
+        if (!empty($value)) {
+          $translated[$key] = $value;
+        }
+      }
+    }
+    return $translated;
+  }
+
+  /**
+   * Saves translated configuration override.
+   *
+   * @param string $name
+   *   Configuration object name.
+   * @param string $langcode
+   *   Language code.
+   * @param array $data
+   *   Configuration data to be saved, that will be only the translated values.
+   */
+  protected function saveTranslationOverride($name, $langcode, array $data) {
+    $this->isUpdatingFromLocale = TRUE;
+    $this->languageManager->getLanguageConfigOverride($langcode, $name)->setData($data)->save();
+    $this->isUpdatingFromLocale = FALSE;
+  }
+
+  /**
+   * Saves translated configuration data.
+   *
+   * @param string $name
+   *   Configuration object name.
+   * @param array $data
+   *   Configuration data to be saved with translations merged in.
+   */
+  protected function saveTranslationActive($name, array $data) {
+    $this->isUpdatingFromLocale = TRUE;
+    $this->configFactory->getEditable($name)->setData($data)->save();
+    $this->isUpdatingFromLocale = FALSE;
+  }
+
+  /**
+   * Deletes translated configuration data.
+   *
+   * @param string $name
+   *   Configuration object name.
+   * @param string $langcode
+   *   Language code.
+   */
+  protected function deleteTranslationOverride($name, $langcode) {
+    $this->isUpdatingFromLocale = TRUE;
+    $this->languageManager->getLanguageConfigOverride($langcode, $name)->delete();
+    $this->isUpdatingFromLocale = FALSE;
+  }
+
+  /**
+   * Gets configuration names associated with components.
+   *
+   * @param array $components
+   *   (optional) Array of component lists indexed by type. If not present or it
+   *   is an empty array, it will update all components.
+   *
+   * @return array
+   *   Array of configuration object names.
+   */
+  public function getComponentNames(array $components = []) {
+    $components = array_filter($components);
+    if ($components) {
+      $names = [];
+      foreach ($components as $type => $list) {
+        // InstallStorage::getComponentNames returns a list of folders keyed by
+        // config name.
+        $names = array_merge($names, $this->defaultConfigStorage->getComponentNames($type, $list));
+      }
+      return $names;
+    }
+    else {
+      return $this->defaultConfigStorage->listAll();
+    }
+  }
+
+  /**
+   * Gets configuration names associated with strings.
+   *
+   * @param array $lids
+   *   Array with string identifiers.
+   *
+   * @return array
+   *   Array of configuration object names.
+   */
+  public function getStringNames(array $lids) {
+    $names = [];
+    $locations = $this->localeStorage->getLocations(['sid' => $lids, 'type' => 'configuration']);
+    foreach ($locations as $location) {
+      $names[$location->name] = $location->name;
+    }
+    return $names;
+  }
+
+  /**
+   * Deletes configuration for language.
+   *
+   * @param string $langcode
+   *   Language code to delete.
+   */
+  public function deleteLanguageTranslations($langcode) {
+    $this->isUpdatingFromLocale = TRUE;
+    $storage = $this->languageManager->getLanguageConfigOverrideStorage($langcode);
+    foreach ($storage->listAll() as $name) {
+      $this->languageManager->getLanguageConfigOverride($langcode, $name)->delete();
+    }
+    $this->isUpdatingFromLocale = FALSE;
+  }
+
+  /**
+   * Translates string using the localization system.
+   *
+   * So far we only know how to translate strings from English so the source
+   * string should be in English.
+   * Unlike regular t() translations, strings will be added to the source
+   * tables only if this is marked as default data.
+   *
+   * @param string $name
+   *   Name of the configuration location.
+   * @param string $langcode
+   *   Language code to translate to.
+   * @param string $source
+   *   The source string, should be English.
+   * @param string $context
+   *   The string context.
+   *
+   * @return string|false
+   *   Translated string if there is a translation, FALSE if not.
+   */
+  public function translateString($name, $langcode, $source, $context) {
+    if ($source) {
+      // If translations for a language have not been loaded yet.
+      if (!isset($this->translations[$name][$langcode])) {
+        // Preload all translations for this configuration name and language.
+        $this->translations[$name][$langcode] = [];
+        foreach ($this->localeStorage->getTranslations(['language' => $langcode, 'type' => 'configuration', 'name' => $name]) as $string) {
+          $this->translations[$name][$langcode][$string->context][$string->source] = $string;
+        }
+      }
+      if (!isset($this->translations[$name][$langcode][$context][$source])) {
+        // There is no translation of the source string in this config location
+        // to this language for this context.
+        if ($translation = $this->localeStorage->findTranslation(['source' => $source, 'context' => $context, 'language' => $langcode])) {
+          // Look for a translation of the string. It might have one, but not
+          // be saved in this configuration location yet.
+          // If the string has a translation for this context to this language,
+          // save it in the configuration location so it can be looked up faster
+          // next time.
+          $this->localeStorage->createString((array) $translation)
+            ->addLocation('configuration', $name)
+            ->save();
+        }
+        else {
+          // No translation was found. Add the source to the configuration
+          // location so it can be translated, and the string is faster to look
+          // for next time.
+          $translation = $this->localeStorage
+            ->createString(['source' => $source, 'context' => $context])
+            ->addLocation('configuration', $name)
+            ->save();
+        }
+
+        // Add an entry, either the translation found, or a blank string object
+        // to track the source string, to this configuration location, language,
+        // and context.
+        $this->translations[$name][$langcode][$context][$source] = $translation;
+      }
+
+      // Return the string only when the string object had a translation.
+      if ($this->translations[$name][$langcode][$context][$source]->isTranslation()) {
+        return $this->translations[$name][$langcode][$context][$source]->getString();
+      }
+    }
+    return FALSE;
+  }
+
+  /**
+   * Reset static cache of configuration string translations.
+   *
+   * @return $this
+   */
+  public function reset() {
+    $this->translations = [];
+    return $this;
+  }
+
+  /**
+   * Get the translation object for the given source/context and language.
+   *
+   * @param string $name
+   *   Name of the configuration location.
+   * @param string $langcode
+   *   Language code to translate to.
+   * @param string $source
+   *   The source string, should be English.
+   * @param string $context
+   *   The string context.
+   *
+   * @return \Drupal\locale\TranslationString|false
+   *   The translation object if the string was not empty or FALSE otherwise.
+   */
+  public function getStringTranslation($name, $langcode, $source, $context) {
+    if ($source) {
+      $this->translateString($name, $langcode, $source, $context);
+      if ($string = $this->translations[$name][$langcode][$context][$source]) {
+        if (!$string->isTranslation()) {
+          $conditions = ['lid' => $string->lid, 'language' => $langcode];
+          $translation = $this->localeStorage->createTranslation($conditions);
+          $this->translations[$name][$langcode][$context][$source] = $translation;
+          return $translation;
+        }
+        else {
+          return $string;
+        }
+      }
+    }
+    return FALSE;
+  }
+
+  /**
+   * Checks whether a language has configuration translation.
+   *
+   * @param string $name
+   *   Configuration name.
+   * @param string $langcode
+   *   A language code.
+   *
+   * @return bool
+   *   A boolean indicating if a language has configuration translations.
+   */
+  public function hasTranslation($name, $langcode) {
+    $translation = $this->languageManager->getLanguageConfigOverride($langcode, $name);
+    return !$translation->isNew();
+  }
+
+  /**
+   * Returns the original language code for this shipped configuration.
+   *
+   * @param string $name
+   *   The configuration name.
+   *
+   * @return null|string
+   *   Language code of the default configuration for $name. If the default
+   *   configuration data for $name did not contain a language code, it is
+   *   assumed to be English. The return value is NULL if no such default
+   *   configuration exists.
+   */
+  public function getDefaultConfigLangcode($name) {
+    // Config entities that do not have the 'default_config_hash' cannot be
+    // shipped configuration regardless of whether there is a name match.
+    // configurable_language entities are a special case since they can be
+    // translated regardless of whether they are shipped if they in the standard
+    // language list.
+    $config_entity_type = $this->configManager->getEntityTypeIdByName($name);
+    if (!$config_entity_type || $config_entity_type === 'configurable_language'
+      || !empty($this->configFactory->get($name)->get('_core.default_config_hash'))
+    ) {
+      $shipped = $this->defaultConfigStorage->read($name);
+      if (!empty($shipped)) {
+        return !empty($shipped['langcode']) ? $shipped['langcode'] : 'en';
+      }
+    }
+    return NULL;
+  }
+
+  /**
+   * Returns the current language code for this active configuration.
+   *
+   * @param string $name
+   *   The configuration name.
+   *
+   * @return null|string
+   *   Language code of the current active configuration for $name. If the
+   *   configuration data for $name did not contain a language code, it is
+   *   assumed to be English. The return value is NULL if no such active
+   *   configuration exists.
+   */
+  public function getActiveConfigLangcode($name) {
+    $active = $this->configStorage->read($name);
+    if (!empty($active)) {
+      return !empty($active['langcode']) ? $active['langcode'] : 'en';
+    }
+  }
+
+  /**
+   * Whether the given configuration is supported for interface translation.
+   *
+   * @param string $name
+   *   The configuration name.
+   *
+   * @return bool
+   *   TRUE if interface translation is supported.
+   */
+  public function isSupported($name) {
+    return $this->getDefaultConfigLangcode($name) == 'en' && $this->configStorage->read($name);
+  }
+
+  /**
+   * Indicates whether configuration translations are being updated from locale.
+   *
+   * @return bool
+   *   Whether or not configuration translations are currently being updated.
+   *   If TRUE, LocaleConfigManager is in control of the process and the
+   *   reference data is locale's storage. Changes made to active configuration
+   *   and overrides in this case should not feed back to locale storage.
+   *   On the other hand, when not updating from locale and configuration
+   *   translations change, we need to feed back to the locale storage.
+   */
+  public function isUpdatingTranslationsFromLocale() {
+    return $this->isUpdatingFromLocale;
+  }
+
+  /**
+   * Updates all configuration translations for the names / languages provided.
+   *
+   * To be used when interface translation changes result in the need to update
+   * configuration translations to keep them in sync.
+   *
+   * @param array $names
+   *   Array of names of configuration objects to update.
+   * @param array $langcodes
+   *   (optional) Array of language codes to update. Defaults to all
+   *   configurable languages.
+   *
+   * @return int
+   *   Total number of configuration override and active configuration objects
+   *   updated (saved or removed).
+   */
+  public function updateConfigTranslations(array $names, array $langcodes = []) {
+    $langcodes = $langcodes ? $langcodes : array_keys($this->languageManager->getLanguages());
+    $count = 0;
+    foreach ($names as $name) {
+      $translatable = $this->getTranslatableDefaultConfig($name);
+      if (empty($translatable)) {
+        // If there is nothing translatable in this configuration or not
+        // supported, skip it.
+        continue;
+      }
+
+      $active_langcode = $this->getActiveConfigLangcode($name);
+      $active = $this->configStorage->read($name);
+
+      foreach ($langcodes as $langcode) {
+        $processed = $this->processTranslatableData($name, $active, $translatable, $langcode);
+        // If the language code is not the same as the active storage
+        // language, we should update the configuration override.
+        if ($langcode != $active_langcode) {
+          $override = $this->languageManager->getLanguageConfigOverride($langcode, $name);
+          // Filter out locale managed configuration keys so that translations
+          // removed from Locale will be reflected in the config override.
+          $data = $this->filterOverride($override->get(), $translatable);
+          if (!empty($processed)) {
+            // Merge in the Locale managed translations with existing data.
+            $data = NestedArray::mergeDeepArray([$data, $processed], TRUE);
+          }
+          if (empty($data) && !$override->isNew()) {
+            // The configuration override contains Locale overrides that no
+            // longer exist.
+            $this->deleteTranslationOverride($name, $langcode);
+            $count++;
+          }
+          elseif (!empty($data)) {
+            // Update translation data in configuration override.
+            $this->saveTranslationOverride($name, $langcode, $data);
+            $count++;
+          }
+        }
+        elseif (locale_is_translatable($langcode)) {
+          // If the language code is the active storage language, we should
+          // update. If it is English, we should only update if English is also
+          // translatable.
+          $active = NestedArray::mergeDeepArray([$active, $processed], TRUE);
+          $this->saveTranslationActive($name, $active);
+          $count++;
+        }
+      }
+    }
+    return $count;
+  }
+
+  /**
+   * Filters override data based on default translatable items.
+   *
+   * @param array $override_data
+   *   Configuration override data.
+   * @param array $translatable
+   *   Translatable data array. @see self::getTranslatableData()
+   * @return array
+   *   Nested array of any items of $override_data which did not have keys in
+   *   $translatable. May be empty if $override_data only had items which were
+   *   also in $translatable.
+   */
+  protected function filterOverride(array $override_data, array $translatable) {
+    $filtered_data = [];
+    foreach ($override_data as $key => $value) {
+      if (isset($translatable[$key])) {
+        // If the translatable default configuration has this key, look further
+        // for subkeys or ignore this element for scalar values.
+        if (is_array($value)) {
+          $value = $this->filterOverride($value, $translatable[$key]);
+          if (!empty($value)) {
+            $filtered_data[$key] = $value;
+          }
+        }
+      }
+      else {
+        // If this key was not in the translatable default configuration,
+        // keep it.
+        $filtered_data[$key] = $value;
+      }
+    }
+    return $filtered_data;
+  }
+
+}