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

Drupal\language\Plugin\Derivative

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);
}