public function ConfigurableLanguageManager::getLanguageSwitchLinks

File

core/modules/language/src/ConfigurableLanguageManager.php, line 405

Class

ConfigurableLanguageManager

Overrides default LanguageManager to provide configured languages.

Namespace

Code

public function getLanguageSwitchLinks($type, Url $url) {
  if ($this->negotiator) {
    foreach ($this->negotiator
      ->getNegotiationMethods($type) as $method_id => $method) {
      if (is_subclass_of($method['class'], LanguageSwitcherInterface::class)) {
        $original_languages = $this->negotiatedLanguages;
        $result = $this->negotiator
          ->getNegotiationMethodInstance($method_id)
          ->getLanguageSwitchLinks($this->requestStack
          ->getCurrentRequest(), $type, $url);
        if (!empty($result)) {

          // Allow modules to provide translations for specific links.
          $this->moduleHandler
            ->alter('language_switch_links', $result, $type, $url);
          $result = array_filter($result, function (array $link) : bool {
            $url = $link['url'] ?? NULL;
            $language = $link['language'] ?? NULL;
            if ($language instanceof LanguageInterface) {
              $this->negotiatedLanguages[LanguageInterface::TYPE_CONTENT] = $language;
              $this->negotiatedLanguages[LanguageInterface::TYPE_INTERFACE] = $language;
            }
            try {
              return $url instanceof Url && $url
                ->access();
            } catch (\Exception $e) {
              return FALSE;
            }
          });
          $this->negotiatedLanguages = $original_languages;
          $links = (object) [
            'links' => $result,
            'method_id' => $method_id,
          ];
          break;
        }
      }
    }
  }
  return $links ?? NULL;
}