function LanguageBlock::getDerivativeDefinitions

Overrides DeriverBase::getDerivativeDefinitions

File

core/modules/language/src/Plugin/Derivative/LanguageBlock.php, line 19

Class

LanguageBlock

Provides language switcher block plugin definitions for all languages.

Namespace

Code

public function getDerivativeDefinitions($base_plugin_definition) {
  $language_manager = \Drupal::languageManager();
  if ($language_manager instanceof ConfigurableLanguageManagerInterface) {
    $info = $language_manager->getDefinedLanguageTypesInfo();
    $configurable_types = $language_manager->getLanguageTypes();
    foreach ($configurable_types as $type) {
      $this->derivatives[$type] = $base_plugin_definition;
      $this->derivatives[$type]['admin_label'] = $this->t('Language switcher (@type)', [
        '@type' => $info[$type]['name'],
      ]);
    }
    // If there is just one configurable type then change the title of the
    // block.
    if (count($configurable_types) == 1) {
      $this->derivatives[reset($configurable_types)]['admin_label'] = $this->t('Language switcher');
    }
  }
  return parent::getDerivativeDefinitions($base_plugin_definition);
}