Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\config_translation\Access;
Chris@0: 
Chris@0: use Drupal\config_translation\ConfigMapperInterface;
Chris@0: use Drupal\config_translation\Exception\ConfigMapperLanguageException;
Chris@0: use Drupal\Core\Language\LanguageManagerInterface;
Chris@0: use Drupal\config_translation\ConfigMapperManagerInterface;
Chris@0: use Drupal\Core\Access\AccessResult;
Chris@0: use Drupal\Core\Routing\Access\AccessInterface;
Chris@0: use Drupal\Core\Routing\RouteMatchInterface;
Chris@0: use Drupal\Core\Session\AccountInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Checks access for displaying the configuration translation overview.
Chris@0:  */
Chris@0: class ConfigTranslationOverviewAccess implements AccessInterface {
Chris@0: 
Chris@0:   /**
Chris@0:    * The mapper plugin discovery service.
Chris@0:    *
Chris@0:    * @var \Drupal\config_translation\ConfigMapperManagerInterface
Chris@0:    */
Chris@0:   protected $configMapperManager;
Chris@0: 
Chris@0:   /**
Chris@0:    * The language manager.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Language\LanguageManagerInterface
Chris@0:    */
Chris@0:   protected $languageManager;
Chris@0: 
Chris@0:   /**
Chris@0:    * Constructs a ConfigTranslationOverviewAccess object.
Chris@0:    *
Chris@0:    * @param \Drupal\config_translation\ConfigMapperManagerInterface $config_mapper_manager
Chris@0:    *   The mapper plugin discovery service.
Chris@0:    * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
Chris@0:    *   The language manager service.
Chris@0:    */
Chris@0:   public function __construct(ConfigMapperManagerInterface $config_mapper_manager, LanguageManagerInterface $language_manager) {
Chris@0:     $this->configMapperManager = $config_mapper_manager;
Chris@0:     $this->languageManager = $language_manager;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Checks access to the overview based on permissions and translatability.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
Chris@0:    *   The route_match to check against.
Chris@0:    * @param \Drupal\Core\Session\AccountInterface $account
Chris@0:    *   The account to check access for.
Chris@0:    *
Chris@0:    * @return \Drupal\Core\Access\AccessResultInterface
Chris@0:    *   The access result.
Chris@0:    */
Chris@0:   public function access(RouteMatchInterface $route_match, AccountInterface $account) {
Chris@0:     $mapper = $this->getMapperFromRouteMatch($route_match);
Chris@0: 
Chris@0:     try {
Chris@0:       $langcode = $mapper->getLangcode();
Chris@0:     }
Chris@0:     catch (ConfigMapperLanguageException $exception) {
Chris@0:       // ConfigTranslationController shows a helpful message if the language
Chris@0:       // codes do not match, so do not let that prevent granting access.
Chris@0:       $langcode = 'en';
Chris@0:     }
Chris@0:     $source_language = $this->languageManager->getLanguage($langcode);
Chris@0: 
Chris@0:     return $this->doCheckAccess($account, $mapper, $source_language);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Gets a configuration mapper using a route match.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
Chris@0:    *   The route match to populate the mapper with.
Chris@0:    *
Chris@0:    * @return \Drupal\config_translation\ConfigMapperInterface
Chris@0:    *   The configuration mapper.
Chris@0:    */
Chris@0:   protected function getMapperFromRouteMatch(RouteMatchInterface $route_match) {
Chris@0:     $mapper = $this->configMapperManager->createInstance($route_match->getRouteObject()
Chris@0:       ->getDefault('plugin_id'));
Chris@0:     $mapper->populateFromRouteMatch($route_match);
Chris@0:     return $mapper;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Checks access given an account, configuration mapper, and source language.
Chris@0:    *
Chris@0:    * Grants access if the proper permission is granted to the account, the
Chris@0:    * configuration has translatable pieces, and the source language is not
Chris@0:    * locked given it is present.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\Session\AccountInterface $account
Chris@0:    *   The account to check access for.
Chris@0:    * @param \Drupal\config_translation\ConfigMapperInterface $mapper
Chris@0:    *   The configuration mapper to check access for.
Chris@0:    * @param \Drupal\Core\Language\LanguageInterface|null $source_language
Chris@0:    *   The source language to check for, if any.
Chris@0:    *
Chris@0:    * @return \Drupal\Core\Access\AccessResultInterface
Chris@0:    *   The result of the access check.
Chris@0:    */
Chris@0:   protected function doCheckAccess(AccountInterface $account, ConfigMapperInterface $mapper, $source_language = NULL) {
Chris@0:     $access =
Chris@0:       $account->hasPermission('translate configuration') &&
Chris@0:       $mapper->hasSchema() &&
Chris@0:       $mapper->hasTranslatable() &&
Chris@0:       (!$source_language || !$source_language->isLocked());
Chris@0: 
Chris@0:     return AccessResult::allowedIf($access)->cachePerPermissions();
Chris@0:   }
Chris@0: 
Chris@0: }