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113 lines
3.8 KiB
113 lines
3.8 KiB
// Copyright 2024 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import 'package:go_router/go_router.dart';
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import '../../../routing/routes.dart';
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import '../../core/localization/applocalization.dart';
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import '../../core/ui/error_indicator.dart';
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import '../view_models/booking_viewmodel.dart';
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import 'booking_body.dart';
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class BookingScreen extends StatefulWidget {
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const BookingScreen({super.key, required this.viewModel});
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final BookingViewModel viewModel;
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@override
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State<BookingScreen> createState() => _BookingScreenState();
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}
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class _BookingScreenState extends State<BookingScreen> {
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@override
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void initState() {
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super.initState();
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widget.viewModel.shareBooking.addListener(_listener);
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}
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@override
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void dispose() {
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widget.viewModel.shareBooking.removeListener(_listener);
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return PopScope(
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canPop: false,
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onPopInvokedWithResult: (didPop, r) {
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// Back navigation always goes to home
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if (!didPop) context.go(Routes.home);
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},
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child: Scaffold(
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floatingActionButton: ListenableBuilder(
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listenable: widget.viewModel,
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builder: (context, _) => FloatingActionButton.extended(
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// Workaround for https://github.com/flutter/flutter/issues/115358#issuecomment-2117157419
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heroTag: null,
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key: const ValueKey('share-button'),
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onPressed: widget.viewModel.booking != null
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? widget.viewModel.shareBooking.execute
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: null,
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label: Text(AppLocalization.of(context).shareTrip),
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icon: const Icon(Icons.share_outlined),
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),
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),
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body: ListenableBuilder(
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// Listen to changes in both commands
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listenable: Listenable.merge([
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widget.viewModel.createBooking,
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widget.viewModel.loadBooking,
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]),
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builder: (context, child) {
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// If either command is running, show progress indicator
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if (widget.viewModel.createBooking.running ||
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widget.viewModel.loadBooking.running) {
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return const Center(child: CircularProgressIndicator());
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}
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// If fails to create booking, tap to try again
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if (widget.viewModel.createBooking.error) {
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return Center(
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child: ErrorIndicator(
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title: AppLocalization.of(context).errorWhileLoadingBooking,
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label: AppLocalization.of(context).tryAgain,
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onPressed: widget.viewModel.createBooking.execute,
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),
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);
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}
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// If existing booking fails to load, tap to go /home
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if (widget.viewModel.loadBooking.error) {
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return Center(
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child: ErrorIndicator(
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title: AppLocalization.of(context).errorWhileLoadingBooking,
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label: AppLocalization.of(context).close,
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onPressed: () => context.go(Routes.home),
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),
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);
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}
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return child!;
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},
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child: BookingBody(viewModel: widget.viewModel),
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),
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),
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);
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}
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void _listener() {
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if (widget.viewModel.shareBooking.error) {
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widget.viewModel.shareBooking.clearResult();
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(AppLocalization.of(context).errorWhileSharing),
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action: SnackBarAction(
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label: AppLocalization.of(context).tryAgain,
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onPressed: widget.viewModel.shareBooking.execute,
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),
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),
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);
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}
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}
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}
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