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MrbWebLibre/app/lib/presentation/hooks/sync_page_tab.dart
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2025-07-25 23:44:40 +02:00

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Dart

/*
* Copyright (c) 2024-2025 Fabian Freund.
*
* This file is part of WebLibre
* (see https://weblibre.eu).
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
void useSyncPageWithTab(
TabController tabController,
PageController pageController, {
void Function(int index)? onIndexChanged,
}) {
useEffect(() {
Future<void> syncPage() async {
await pageController.animateToPage(
tabController.index,
curve: Curves.linear,
duration: const Duration(milliseconds: 300),
);
onIndexChanged?.call(tabController.index);
}
void syncTab() {
if (!tabController.indexIsChanging) {
final index = pageController.page!.round();
tabController.animateTo(index);
onIndexChanged?.call(index);
}
}
tabController.addListener(syncPage);
pageController.addListener(syncTab);
return () {
tabController.removeListener(syncPage);
pageController.removeListener(syncTab);
};
}, [tabController, pageController]);
}