mirror of
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Compass app (#2446)
This commit is contained in:
Eric Windmill
GitHub
@@ -0,0 +1,89 @@
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// 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/foundation.dart';
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import 'package:logging/logging.dart';
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import '../../../data/repositories/booking/booking_repository.dart';
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import '../../../data/repositories/itinerary_config/itinerary_config_repository.dart';
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import '../../../domain/models/booking/booking.dart';
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import '../../../domain/models/itinerary_config/itinerary_config.dart';
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import '../../../utils/command.dart';
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import '../../../utils/result.dart';
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import '../../../domain/use_cases/booking/booking_create_use_case.dart';
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import '../../../domain/use_cases/booking/booking_share_use_case.dart';
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class BookingViewModel extends ChangeNotifier {
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BookingViewModel({
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required BookingCreateUseCase createBookingUseCase,
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required BookingShareUseCase shareBookingUseCase,
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required ItineraryConfigRepository itineraryConfigRepository,
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required BookingRepository bookingRepository,
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}) : _createUseCase = createBookingUseCase,
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_shareUseCase = shareBookingUseCase,
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_itineraryConfigRepository = itineraryConfigRepository,
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_bookingRepository = bookingRepository {
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createBooking = Command0(_createBooking);
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shareBooking = Command0(() => _shareUseCase.shareBooking(_booking!));
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loadBooking = Command1(_load);
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}
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final BookingCreateUseCase _createUseCase;
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final BookingShareUseCase _shareUseCase;
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final ItineraryConfigRepository _itineraryConfigRepository;
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final BookingRepository _bookingRepository;
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final _log = Logger('BookingViewModel');
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Booking? _booking;
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Booking? get booking => _booking;
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/// Creates a booking from the ItineraryConfig
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/// and saves it to the user bookins
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late final Command0 createBooking;
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/// Loads booking by id
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late final Command1<void, int> loadBooking;
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/// Share the current booking using the OS share dialog.
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late final Command0 shareBooking;
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Future<Result<void>> _createBooking() async {
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_log.fine('Loading booking');
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final itineraryConfig =
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await _itineraryConfigRepository.getItineraryConfig();
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switch (itineraryConfig) {
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case Ok<ItineraryConfig>():
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_log.fine('Loaded stored ItineraryConfig');
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final result = await _createUseCase.createFrom(itineraryConfig.value);
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switch (result) {
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case Ok<Booking>():
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_log.fine('Created Booking');
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_booking = result.value;
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notifyListeners();
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return Result.ok(null);
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case Error<Booking>():
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_log.warning('Booking error: ${result.error}');
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notifyListeners();
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return Result.error(result.asError.error);
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}
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case Error<ItineraryConfig>():
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_log.warning('ItineraryConfig error: ${itineraryConfig.error}');
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notifyListeners();
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return Result.error(itineraryConfig.error);
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}
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}
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Future<Result<void>> _load(int id) async {
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final result = await _bookingRepository.getBooking(id);
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switch (result) {
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case Ok<Booking>():
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_log.fine('Loaded booking $id');
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_booking = result.value;
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notifyListeners();
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case Error<Booking>():
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_log.warning('Failed to load booking $id');
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}
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return result;
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}
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}
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104
compass_app/app/lib/ui/booking/widgets/booking_body.dart
Normal file
104
compass_app/app/lib/ui/booking/widgets/booking_body.dart
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@@ -0,0 +1,104 @@
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// 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:cached_network_image/cached_network_image.dart';
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import 'package:flutter/material.dart';
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import '../../../domain/models/activity/activity.dart';
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import '../../../utils/image_error_listener.dart';
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import '../../core/themes/dimens.dart';
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import '../view_models/booking_viewmodel.dart';
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import 'booking_header.dart';
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class BookingBody extends StatelessWidget {
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const BookingBody({
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super.key,
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required this.viewModel,
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});
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final BookingViewModel viewModel;
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@override
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Widget build(BuildContext context) {
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return ListenableBuilder(
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listenable: viewModel,
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builder: (context, _) {
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final booking = viewModel.booking;
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if (booking == null) return const SizedBox();
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return CustomScrollView(
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slivers: [
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SliverToBoxAdapter(child: BookingHeader(booking: booking)),
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SliverList(
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delegate: SliverChildBuilderDelegate(
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(context, index) {
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final activity = booking.activity[index];
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return _Activity(activity: activity);
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},
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childCount: booking.activity.length,
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),
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),
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const SliverToBoxAdapter(child: SizedBox(height: 200)),
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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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class _Activity extends StatelessWidget {
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const _Activity({
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required this.activity,
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});
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final Activity activity;
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@override
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Widget build(BuildContext context) {
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return Padding(
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padding: EdgeInsets.only(
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top: Dimens.paddingVertical,
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left: Dimens.of(context).paddingScreenHorizontal,
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right: Dimens.of(context).paddingScreenHorizontal,
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),
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child: Row(
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children: [
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ClipRRect(
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borderRadius: BorderRadius.circular(8),
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child: CachedNetworkImage(
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imageUrl: activity.imageUrl,
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height: 80,
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width: 80,
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errorListener: imageErrorListener,
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),
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),
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const SizedBox(width: 20),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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mainAxisAlignment: MainAxisAlignment.start,
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children: [
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Text(
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activity.timeOfDay.name.toUpperCase(),
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style: Theme.of(context).textTheme.labelSmall,
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),
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Text(
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activity.name,
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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style: Theme.of(context).textTheme.bodyMedium,
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),
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Text(
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activity.description,
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maxLines: 2,
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overflow: TextOverflow.ellipsis,
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style: Theme.of(context).textTheme.bodySmall,
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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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);
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}
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}
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191
compass_app/app/lib/ui/booking/widgets/booking_header.dart
Normal file
191
compass_app/app/lib/ui/booking/widgets/booking_header.dart
Normal file
@@ -0,0 +1,191 @@
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// 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:cached_network_image/cached_network_image.dart';
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import 'package:flutter/material.dart';
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import '../../../domain/models/booking/booking.dart';
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import '../../../utils/image_error_listener.dart';
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import '../../core/localization/applocalization.dart';
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import '../../core/themes/colors.dart';
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import '../../core/themes/dimens.dart';
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import '../../core/ui/date_format_start_end.dart';
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import '../../core/ui/home_button.dart';
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import '../../core/ui/tag_chip.dart';
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class BookingHeader extends StatelessWidget {
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const BookingHeader({
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super.key,
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required this.booking,
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});
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final Booking booking;
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@override
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Widget build(BuildContext context) {
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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_Top(booking: booking),
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Padding(
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padding: Dimens.of(context).edgeInsetsScreenHorizontal,
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child: Text(
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booking.destination.knownFor,
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style: Theme.of(context).textTheme.bodyLarge,
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),
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),
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const SizedBox(height: Dimens.paddingVertical),
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_Tags(booking: booking),
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const SizedBox(height: Dimens.paddingVertical),
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Padding(
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padding: Dimens.of(context).edgeInsetsScreenHorizontal,
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child: Text(
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AppLocalization.of(context).yourChosenActivities,
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style: Theme.of(context).textTheme.headlineSmall,
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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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class _Top extends StatelessWidget {
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const _Top({
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required this.booking,
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});
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final Booking booking;
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@override
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Widget build(BuildContext context) {
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return SizedBox(
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height: 260,
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child: Stack(
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fit: StackFit.expand,
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children: [
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_HeaderImage(booking: booking),
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const _Gradient(),
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_Headline(booking: booking),
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Positioned(
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right: Dimens.of(context).paddingScreenHorizontal,
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top: Dimens.of(context).paddingScreenVertical,
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child: const SafeArea(
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top: true,
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child: HomeButton(blur: true),
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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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}
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class _Tags extends StatelessWidget {
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const _Tags({
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required this.booking,
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});
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final Booking booking;
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@override
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Widget build(BuildContext context) {
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final brightness = Theme.of(context).brightness;
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final chipColor = switch (brightness) {
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Brightness.dark => AppColors.whiteTransparent,
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Brightness.light => AppColors.blackTransparent,
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};
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return Padding(
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padding: Dimens.of(context).edgeInsetsScreenHorizontal,
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child: Wrap(
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spacing: 6,
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runSpacing: 6,
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children: booking.destination.tags
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.map(
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(tag) => TagChip(
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tag: tag,
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fontSize: 16,
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height: 32,
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chipColor: chipColor,
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onChipColor: Theme.of(context).colorScheme.onSurface,
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),
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)
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.toList(),
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),
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);
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}
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}
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class _Headline extends StatelessWidget {
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const _Headline({
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required this.booking,
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});
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final Booking booking;
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@override
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Widget build(BuildContext context) {
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return Align(
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alignment: AlignmentDirectional.bottomStart,
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child: Padding(
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padding: Dimens.of(context).edgeInsetsScreenSymmetric,
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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booking.destination.name,
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style: Theme.of(context).textTheme.headlineLarge,
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),
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Text(
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dateFormatStartEnd(
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DateTimeRange(
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start: booking.startDate,
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end: booking.endDate,
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),
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),
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style: Theme.of(context).textTheme.headlineSmall,
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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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}
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class _HeaderImage extends StatelessWidget {
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const _HeaderImage({
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required this.booking,
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});
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final Booking booking;
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@override
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Widget build(BuildContext context) {
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return CachedNetworkImage(
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fit: BoxFit.fitWidth,
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imageUrl: booking.destination.imageUrl,
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errorListener: imageErrorListener,
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);
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}
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}
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class _Gradient extends StatelessWidget {
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const _Gradient();
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@override
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Widget build(BuildContext context) {
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return DecoratedBox(
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decoration: BoxDecoration(
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gradient: LinearGradient(
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begin: Alignment.topCenter,
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end: Alignment.bottomCenter,
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colors: [
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Colors.transparent,
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Theme.of(context).colorScheme.surface,
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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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115
compass_app/app/lib/ui/booking/widgets/booking_screen.dart
Normal file
115
compass_app/app/lib/ui/booking/widgets/booking_screen.dart
Normal file
@@ -0,0 +1,115 @@
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// 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({
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super.key,
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required this.viewModel,
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});
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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(
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child: CircularProgressIndicator(),
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);
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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(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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Reference in New Issue
Block a user