Same name and namespace in other branches

1. 8.9.x core/modules/language/src/Plugin/LanguageNegotiation/LanguageNegotiationUrlFallback.php \Drupal\language\Plugin\LanguageNegotiation\LanguageNegotiationUrlFallback::getLangcode()
2. 10 core/modules/language/src/Plugin/LanguageNegotiation/LanguageNegotiationUrlFallback.php \Drupal\language\Plugin\LanguageNegotiation\LanguageNegotiationUrlFallback::getLangcode()
3. 11.x core/modules/language/src/Plugin/LanguageNegotiation/LanguageNegotiationUrlFallback.php \Drupal\language\Plugin\LanguageNegotiation\LanguageNegotiationUrlFallback::getLangcode()

Performs language negotiation.

@todo Determine whether string|false or string|null should be the normalized result across all implementations and update the

Parameters

\Symfony\Component\HttpFoundation\Request $request: (optional) The current request. Defaults to NULL if it has not been initialized yet.

Return value

string|null|false A valid language code if the negotiation was successful and either NULL or FALSE otherwise.

and its comment accordingly.

Overrides LanguageNegotiationMethodInterface::getLangcode

File

core/modules/language/src/Plugin/LanguageNegotiation/LanguageNegotiationUrlFallback.php, line 47

Class

LanguageNegotiationUrlFallback

Determines the language to be assigned to URLs when none is detected.

Namespace

Drupal\language\Plugin\LanguageNegotiation

Code

public function getLangcode(Request $request = NULL) {
    $langcode = NULL;
    if ($this->languageManager) {
        $default = $this->languageManager
            ->getDefaultLanguage();
        $config = $this->config
            ->get('language.negotiation')
            ->get('url');
        $prefix = $config['source'] == LanguageNegotiationUrl::CONFIG_PATH_PREFIX;
        // If the default language is not configured to convey language
        // information, a missing URL language information indicates that URL
        // language should be the default one, otherwise we fall back to an
        // already detected language.
        if ($prefix && empty($config['prefixes'][$default->getId()]) || !$prefix && empty($config['domains'][$default->getId()])) {
            $langcode = $default->getId();
        }
        else {
            $langcode = $this->languageManager
                ->getCurrentLanguage()
                ->getId();
        }
    }
    return $langcode;
}

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