Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\language;
Chris@0: 
Chris@0: use Drupal\Core\Language\LanguageManagerInterface;
Chris@0: use Drupal\Core\ParamConverter\ParamConverterInterface;
Chris@0: use Symfony\Component\Routing\Route;
Chris@0: 
Chris@0: /**
Chris@0:  * Converts parameters for upcasting entity IDs to full objects.
Chris@0:  */
Chris@0: class LanguageConverter implements ParamConverterInterface {
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 new LanguageConverter.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
Chris@0:    *   The language manager.
Chris@0:    */
Chris@0:   public function __construct(LanguageManagerInterface $language_manager) {
Chris@0:     $this->languageManager = $language_manager;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function convert($value, $definition, $name, array $defaults) {
Chris@0:     if (!empty($value)) {
Chris@0:       return $this->languageManager->getLanguage($value);
Chris@0:     }
Chris@0:     return NULL;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function applies($definition, $name, Route $route) {
Chris@0:     return (!empty($definition['type']) && $definition['type'] == 'language');
Chris@0:   }
Chris@0: 
Chris@0: }