89 lines
2.8 KiB
PHP
89 lines
2.8 KiB
PHP
<?php
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declare(strict_types=1);
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/*
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* This file is part of the TYPO3 CMS project.
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*
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* It is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, either version 2
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* of the License, or any later version.
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*
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* For the full copyright and license information, please read the
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* LICENSE.txt file that was distributed with this source code.
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*
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* The TYPO3 project - inspiring people to share!
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*/
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namespace TYPO3\CMS\Backend\User;
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use TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
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/**
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* Manages language selection preferences across modules.
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* Provides fallback chain for language resolution.
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*
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* Language preferences are stored in be_users.uc['pageLanguages'] as:
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* [pageId => languageIds[]]
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*
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* Page-specific preferences are shared across all modules working with that page.
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*
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* @internal
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*/
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final class SharedUserPreferences
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{
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/**
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* Resolve selected languages with fallback chain.
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*
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* Priority order:
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* 1. Explicit request parameter (not stored, just for current request)
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* 2. Page-specific stored preference (shared across modules)
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* 3. ModuleData from request (for backward compat)
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* 4. Default [0]
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*
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* @param array|null $requestLanguages Languages from request parameter
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* @param array|null $moduleDataLanguages Languages from ModuleData (for backward compat)
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* @return int[] Resolved language IDs
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*/
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public function resolveLanguages(
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BackendUserAuthentication $backendUser,
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?array $requestLanguages,
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int $pageId,
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?array $moduleDataLanguages = null
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): array {
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// 1. Explicit request parameter (highest priority)
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if (!empty($requestLanguages)) {
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return array_unique(array_map(intval(...), $requestLanguages));
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}
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// 2. Page-specific preference (shared across modules)
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$pageSpecific = $backendUser->uc['pageLanguages'][$pageId] ?? null;
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if (is_array($pageSpecific)) {
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return $pageSpecific;
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}
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// 3. ModuleData from request (for backward compat)
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if (!empty($moduleDataLanguages)) {
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return array_unique(array_map(intval(...), $moduleDataLanguages));
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}
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// 4. Default
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return [0];
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}
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/**
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* Store language selection for a page (shared across modules).
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*
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* This preference will be used by ALL modules working with this page,
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* ensuring consistent language selection across Page Module, Records module, etc.
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*/
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public function setPageLanguages(BackendUserAuthentication $backendUser, int $pageId, array $languageIds): void
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{
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if (!isset($backendUser->uc['pageLanguages'])) {
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$backendUser->uc['pageLanguages'] = [];
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}
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$backendUser->uc['pageLanguages'][$pageId] = $languageIds;
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$backendUser->writeUC();
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}
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}
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