TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
commit af8cc155b5
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+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+namespace TYPO3\CMS\Core\Localization;
+
+use TYPO3\CMS\Core\Authentication\AbstractUserAuthentication;
+use TYPO3\CMS\Core\Cache\Frontend\FrontendInterface;
+use TYPO3\CMS\Core\Site\Entity\SiteLanguage;
+
+readonly class LanguageServiceFactory
+{
+    public function __construct(
+        protected Locales $locales,
+        protected LocalizationFactory $localizationFactory,
+        protected FrontendInterface $runtimeCache
+    ) {}
+
+    /**
+     * Factory method to create a language service object.
+     *
+     * @param Locale|string $locale the locale
+     */
+    public function create(Locale|string $locale): LanguageService
+    {
+        $obj = new LanguageService($this->locales, $this->localizationFactory, $this->runtimeCache);
+        $obj->init($locale instanceof Locale ? $locale : $this->locales->createLocale($locale));
+        return $obj;
+    }
+
+    public function createFromUserPreferences(?AbstractUserAuthentication $user): LanguageService
+    {
+        return $this->create($this->locales->createLocaleFromUserPreferences($user));
+    }
+
+    public function createFromSiteLanguage(SiteLanguage $language): LanguageService
+    {
+        // createLocale from a string takes care of resolving the automatic dependencies of e.g. "de_AT" to also check for "de"
+        // and also validates if TYPO3 supports the original language (at least in TYPO3 v12, there is a fixed list of
+        // allowed language keys)
+        return $this->create((string)$language->getLocale());
+    }
+
+    /**
+     * Creates a LanguageService based on the current backend user's preferences.
+     *
+     * @internal don't use this in your own code, as we implicitly have a global dependency here.
+     */
+    public function createForBackendUser(): LanguageService
+    {
+        return $this->createFromUserPreferences($GLOBALS['BE_USER'] ?? null);
+    }
+}