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// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:async';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('Simple router basic functionality - synchronized', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
return Text(information!.location!);
},
),
),
));
expect(find.text('initial'), findsOneWidget);
provider.value = const RouteInformation(
location: 'update',
);
await tester.pump();
expect(find.text('initial'), findsNothing);
expect(find.text('update'), findsOneWidget);
});
testWidgets('Simple router basic functionality - asynchronized', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final SimpleAsyncRouteInformationParser parser = SimpleAsyncRouteInformationParser();
final SimpleAsyncRouterDelegate delegate = SimpleAsyncRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
if (information == null) {
return const Text('waiting');
}
return Text(information.location!);
},
);
await tester.runAsync(() async {
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
routeInformationProvider: provider,
routeInformationParser: parser,
routerDelegate: delegate,
),
));
// Future has not yet completed.
expect(find.text('waiting'), findsOneWidget);
await parser.parsingFuture;
await delegate.setNewRouteFuture;
await tester.pump();
expect(find.text('initial'), findsOneWidget);
provider.value = const RouteInformation(
location: 'update',
);
await tester.pump();
// Future has not yet completed.
expect(find.text('initial'), findsOneWidget);
await parser.parsingFuture;
await delegate.setNewRouteFuture;
await tester.pump();
expect(find.text('update'), findsOneWidget);
});
});
testWidgets('Interrupts route parsing should not crash', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final CompleterRouteInformationParser parser = CompleterRouteInformationParser();
final SimpleAsyncRouterDelegate delegate = SimpleAsyncRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
if (information == null) {
return const Text('waiting');
}
return Text(information.location!);
},
);
await tester.runAsync(() async {
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
routeInformationProvider: provider,
routeInformationParser: parser,
routerDelegate: delegate,
),
));
// Future has not yet completed.
expect(find.text('waiting'), findsOneWidget);
final Completer<void> firstTransactionCompleter = parser.completer;
// Start a new parsing transaction before the previous one complete.
provider.value = const RouteInformation(
location: 'update',
);
await tester.pump();
expect(find.text('waiting'), findsOneWidget);
// Completing the previous transaction does not cause an update.
firstTransactionCompleter.complete();
await firstTransactionCompleter.future;
await tester.pump();
expect(find.text('waiting'), findsOneWidget);
expect(tester.takeException(), isNull);
// Make sure the new transaction can complete and update correctly.
parser.completer.complete();
await parser.completer.future;
await delegate.setNewRouteFuture;
await tester.pump();
expect(find.text('update'), findsOneWidget);
});
});
testWidgets('Router.maybeOf can be null', (WidgetTester tester) async {
final GlobalKey key = GlobalKey();
await tester.pumpWidget(buildBoilerPlate(
Text('dummy', key: key),
));
final BuildContext textContext = key.currentContext!;
// This should not throw error.
final Router<dynamic>? router = Router.maybeOf(textContext);
expect(router, isNull);
expect(
() => Router.of(textContext),
throwsA(isFlutterError.having((FlutterError e) => e.message, 'message', startsWith('Router')))
);
});
testWidgets('Simple router can handle pop route', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final BackButtonDispatcher dispatcher = RootBackButtonDispatcher();
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
return Text(information!.location!);
},
onPopRoute: () {
provider.value = const RouteInformation(
location: 'popped',
);
return SynchronousFuture<bool>(true);
},
),
backButtonDispatcher: dispatcher,
),
));
expect(find.text('initial'), findsOneWidget);
bool result = false;
// SynchronousFuture should complete immediately.
dispatcher.invokeCallback(SynchronousFuture<bool>(false))
.then((bool data) {
result = data;
});
expect(result, isTrue);
await tester.pump();
expect(find.text('popped'), findsOneWidget);
});
testWidgets('Router throw when passing routeInformationProvider without routeInformationParser', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
expect(
() {
Router<RouteInformation>(
routeInformationProvider: provider,
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
return Text(information!.location!);
},
),
);
},
throwsA(isAssertionError.having(
(AssertionError e) => e.message,
'message',
'A routeInformationParser must be provided when a routeInformationProvider is specified.',
)),
);
});
testWidgets('PopNavigatorRouterDelegateMixin works', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final BackButtonDispatcher dispatcher = RootBackButtonDispatcher();
final SimpleNavigatorRouterDelegate delegate = SimpleNavigatorRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
return Text(information!.location!);
},
onPopPage: (Route<void> route, void result) {
provider.value = const RouteInformation(
location: 'popped',
);
return route.didPop(result);
},
);
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: delegate,
backButtonDispatcher: dispatcher,
),
));
expect(find.text('initial'), findsOneWidget);
// Pushes a nameless route.
showDialog<void>(
useRootNavigator: false,
context: delegate.navigatorKey.currentContext!,
builder: (BuildContext context) => const Text('dialog'),
);
await tester.pumpAndSettle();
expect(find.text('dialog'), findsOneWidget);
// Pops the nameless route and makes sure the initial page is shown.
bool result = false;
result = await dispatcher.invokeCallback(SynchronousFuture<bool>(false));
expect(result, isTrue);
await tester.pumpAndSettle();
expect(find.text('initial'), findsOneWidget);
expect(find.text('dialog'), findsNothing);
// Pops one more time.
result = false;
result = await dispatcher.invokeCallback(SynchronousFuture<bool>(false));
expect(result, isTrue);
await tester.pumpAndSettle();
expect(find.text('popped'), findsOneWidget);
});
testWidgets('Nested routers back button dispatcher works', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
final BackButtonDispatcher innerDispatcher = ChildBackButtonDispatcher(outerDispatcher);
innerDispatcher.takePriority();
// Creates the sub-router.
return Router<RouteInformation>(
backButtonDispatcher: innerDispatcher,
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? innerInformation) {
return Text(information!.location!);
},
onPopRoute: () {
provider.value = const RouteInformation(
location: 'popped inner',
);
return SynchronousFuture<bool>(true);
},
),
);
},
onPopRoute: () {
provider.value = const RouteInformation(
location: 'popped outer',
);
return SynchronousFuture<bool>(true);
},
),
),
));
expect(find.text('initial'), findsOneWidget);
// The outer dispatcher should trigger the pop on the inner router.
bool result = false;
result = await outerDispatcher.invokeCallback(SynchronousFuture<bool>(false));
expect(result, isTrue);
await tester.pump();
expect(find.text('popped inner'), findsOneWidget);
});
testWidgets('Nested router back button dispatcher works for multiple children', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
final BackButtonDispatcher innerDispatcher1 = ChildBackButtonDispatcher(outerDispatcher);
final BackButtonDispatcher innerDispatcher2 = ChildBackButtonDispatcher(outerDispatcher);
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
// Creates the sub-router.
return Column(
children: <Widget>[
Text(information!.location!),
Router<RouteInformation>(
backButtonDispatcher: innerDispatcher1,
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? innerInformation) {
return Container();
},
onPopRoute: () {
provider.value = const RouteInformation(
location: 'popped inner1',
);
return SynchronousFuture<bool>(true);
},
),
),
Router<RouteInformation>(
backButtonDispatcher: innerDispatcher2,
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? innerInformation) {
return Container();
},
onPopRoute: () {
provider.value = const RouteInformation(
location: 'popped inner2',
);
return SynchronousFuture<bool>(true);
},
),
),
],
);
},
onPopRoute: () {
provider.value = const RouteInformation(
location: 'popped outer',
);
return SynchronousFuture<bool>(true);
},
),
),
));
expect(find.text('initial'), findsOneWidget);
// If none of the children have taken the priority, the root router handles
// the pop.
bool result = false;
result = await outerDispatcher.invokeCallback(SynchronousFuture<bool>(false));
expect(result, isTrue);
await tester.pump();
expect(find.text('popped outer'), findsOneWidget);
innerDispatcher1.takePriority();
result = false;
result = await outerDispatcher.invokeCallback(SynchronousFuture<bool>(false));
expect(result, isTrue);
await tester.pump();
expect(find.text('popped inner1'), findsOneWidget);
// The last child dispatcher that took priority handles the pop.
innerDispatcher2.takePriority();
result = false;
result = await outerDispatcher.invokeCallback(SynchronousFuture<bool>(false));
expect(result, isTrue);
await tester.pump();
expect(find.text('popped inner2'), findsOneWidget);
});
testWidgets('ChildBackButtonDispatcher can be replaced without calling the takePriority', (WidgetTester tester) async {
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
BackButtonDispatcher innerDispatcher = ChildBackButtonDispatcher(outerDispatcher);
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
// Creates the sub-router.
return Column(
children: <Widget>[
const Text('initial'),
Router<RouteInformation>(
backButtonDispatcher: innerDispatcher,
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? innerInformation) {
return Container();
},
),
),
],
);
},
),
),
));
// Creates a new child back button dispatcher and rebuild, this will cause
// the old one to be replaced and discarded.
innerDispatcher = ChildBackButtonDispatcher(outerDispatcher);
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
// Creates the sub-router.
return Column(
children: <Widget>[
const Text('initial'),
Router<RouteInformation>(
backButtonDispatcher: innerDispatcher,
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? innerInformation) {
return Container();
},
),
),
],
);
},
),
),
));
expect(tester.takeException(), isNull);
});
testWidgets('ChildBackButtonDispatcher take priority recursively', (WidgetTester tester) async {
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
final BackButtonDispatcher innerDispatcher1 = ChildBackButtonDispatcher(outerDispatcher);
final BackButtonDispatcher innerDispatcher2 = ChildBackButtonDispatcher(innerDispatcher1);
final BackButtonDispatcher innerDispatcher3 = ChildBackButtonDispatcher(innerDispatcher2);
bool isPopped = false;
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
// Creates the sub-router.
return Router<RouteInformation>(
backButtonDispatcher: innerDispatcher1,
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? innerInformation) {
return Router<RouteInformation>(
backButtonDispatcher: innerDispatcher2,
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? innerInformation) {
return Router<RouteInformation>(
backButtonDispatcher: innerDispatcher3,
routerDelegate: SimpleRouterDelegate(
onPopRoute: () {
isPopped = true;
return SynchronousFuture<bool>(true);
},
builder: (BuildContext context, RouteInformation? innerInformation) {
return Container();
},
),
);
},
),
);
},
),
);
},
),
),
));
// This should work without calling the takePriority on the innerDispatcher2
// and the innerDispatcher1.
innerDispatcher3.takePriority();
bool result = false;
result = await outerDispatcher.invokeCallback(SynchronousFuture<bool>(false));
expect(result, isTrue);
expect(isPopped, isTrue);
});
testWidgets('router does report URL change correctly', (WidgetTester tester) async {
RouteInformation? reportedRouteInformation;
RouteInformationReportingType? reportedType;
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider(
onRouterReport: (RouteInformation information, RouteInformationReportingType type) {
// Makes sure we only report once after manually cleaning up.
expect(reportedRouteInformation, isNull);
expect(reportedType, isNull);
reportedRouteInformation = information;
reportedType = type;
},
);
final SimpleRouterDelegate delegate = SimpleRouterDelegate(
reportConfiguration: true,
builder: (BuildContext context, RouteInformation? information) {
return Text(information!.location!);
},
);
delegate.onPopRoute = () {
delegate.routeInformation = const RouteInformation(
location: 'popped',
);
return SynchronousFuture<bool>(true);
};
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
provider.value = const RouteInformation(
location: 'initial',
);
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: delegate,
),
));
expect(find.text('initial'), findsOneWidget);
expect(reportedRouteInformation!.location, 'initial');
expect(reportedType, RouteInformationReportingType.none);
reportedRouteInformation = null;
reportedType = null;
delegate.routeInformation = const RouteInformation(
location: 'update',
);
await tester.pump();
expect(find.text('initial'), findsNothing);
expect(find.text('update'), findsOneWidget);
expect(reportedRouteInformation!.location, 'update');
expect(reportedType, RouteInformationReportingType.none);
// The router should report as non navigation event if only state changes.
reportedRouteInformation = null;
reportedType = null;
delegate.routeInformation = const RouteInformation(
location: 'update',
state: 'another state',
);
await tester.pump();
expect(find.text('update'), findsOneWidget);
expect(reportedRouteInformation!.location, 'update');
expect(reportedRouteInformation!.state, 'another state');
expect(reportedType, RouteInformationReportingType.none);
reportedRouteInformation = null;
reportedType = null;
bool result = false;
result = await outerDispatcher.invokeCallback(SynchronousFuture<bool>(false));
expect(result, isTrue);
await tester.pump();
expect(find.text('popped'), findsOneWidget);
expect(reportedRouteInformation!.location, 'popped');
expect(reportedType, RouteInformationReportingType.none);
});
testWidgets('router can be forced to recognize or ignore navigating events', (WidgetTester tester) async {
RouteInformation? reportedRouteInformation;
RouteInformationReportingType? reportedType;
bool isNavigating = false;
late RouteInformation nextRouteInformation;
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider(
onRouterReport: (RouteInformation information, RouteInformationReportingType type) {
// Makes sure we only report once after manually cleaning up.
expect(reportedRouteInformation, isNull);
expect(reportedType, isNull);
reportedRouteInformation = information;
reportedType = type;
},
);
provider.value = const RouteInformation(
location: 'initial',
);
final SimpleRouterDelegate delegate = SimpleRouterDelegate(reportConfiguration: true);
delegate.builder = (BuildContext context, RouteInformation? information) {
return ElevatedButton(
child: Text(information!.location!),
onPressed: () {
if (isNavigating) {
Router.navigate(context, () {
if (delegate.routeInformation != nextRouteInformation) {
delegate.routeInformation = nextRouteInformation;
}
});
} else {
Router.neglect(context, () {
if (delegate.routeInformation != nextRouteInformation) {
delegate.routeInformation = nextRouteInformation;
}
});
}
},
);
};
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: delegate,
),
));
expect(find.text('initial'), findsOneWidget);
expect(reportedRouteInformation!.location, 'initial');
expect(reportedType, RouteInformationReportingType.none);
reportedType = null;
reportedRouteInformation = null;
nextRouteInformation = const RouteInformation(
location: 'update',
);
await tester.tap(find.byType(ElevatedButton));
await tester.pump();
expect(find.text('initial'), findsNothing);
expect(find.text('update'), findsOneWidget);
expect(reportedType, RouteInformationReportingType.neglect);
expect(reportedRouteInformation!.location, 'update');
reportedType = null;
reportedRouteInformation = null;
isNavigating = true;
// This should not trigger any real navigating event because the
// nextRouteInformation does not change. However, the router should still
// report a route information because isNavigating = true.
await tester.tap(find.byType(ElevatedButton));
await tester.pump();
expect(reportedType, RouteInformationReportingType.navigate);
expect(reportedRouteInformation!.location, 'update');
reportedType = null;
reportedRouteInformation = null;
});
testWidgets('router ignore navigating events updates RouteInformationProvider', (WidgetTester tester) async {
RouteInformation? updatedRouteInformation;
late RouteInformation nextRouteInformation;
RouteInformationReportingType? reportingType;
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider(
onRouterReport: (RouteInformation information, RouteInformationReportingType type) {
expect(reportingType, isNull);
expect(updatedRouteInformation, isNull);
updatedRouteInformation = information;
reportingType = type;
},
);
provider.value = const RouteInformation(
location: 'initial',
);
final SimpleRouterDelegate delegate = SimpleRouterDelegate(reportConfiguration: true);
delegate.builder = (BuildContext context, RouteInformation? information) {
return ElevatedButton(
child: Text(information!.location!),
onPressed: () {
Router.neglect(context, () {
if (delegate.routeInformation != nextRouteInformation) {
delegate.routeInformation = nextRouteInformation;
}
});
},
);
};
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: delegate,
),
));
expect(find.text('initial'), findsOneWidget);
expect(updatedRouteInformation!.location, 'initial');
expect(reportingType, RouteInformationReportingType.none);
updatedRouteInformation = null;
reportingType = null;
nextRouteInformation = const RouteInformation(
location: 'update',
);
await tester.tap(find.byType(ElevatedButton));
await tester.pump();
expect(find.text('initial'), findsNothing);
expect(find.text('update'), findsOneWidget);
expect(updatedRouteInformation!.location, 'update');
expect(reportingType, RouteInformationReportingType.neglect);
});
testWidgets('state change without location changes updates RouteInformationProvider', (WidgetTester tester) async {
RouteInformation? updatedRouteInformation;
late RouteInformation nextRouteInformation;
RouteInformationReportingType? reportingType;
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider(
onRouterReport: (RouteInformation information, RouteInformationReportingType type) {
// This should never be a navigation event.
expect(reportingType, isNull);
expect(updatedRouteInformation, isNull);
updatedRouteInformation = information;
reportingType = type;
},
);
provider.value = const RouteInformation(
location: 'initial',
state: 'state1',
);
final SimpleRouterDelegate delegate = SimpleRouterDelegate(reportConfiguration: true);
delegate.builder = (BuildContext context, RouteInformation? information) {
return ElevatedButton(
child: Text(information!.location!),
onPressed: () {
delegate.routeInformation = nextRouteInformation;
},
);
};
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: delegate,
),
));
expect(find.text('initial'), findsOneWidget);
expect(updatedRouteInformation!.location, 'initial');
expect(reportingType, RouteInformationReportingType.none);
updatedRouteInformation = null;
reportingType = null;
nextRouteInformation = const RouteInformation(
location: 'initial',
state: 'state2',
);
await tester.tap(find.byType(ElevatedButton));
await tester.pump();
expect(updatedRouteInformation!.location, 'initial');
expect(updatedRouteInformation!.state, 'state2');
expect(reportingType, RouteInformationReportingType.none);
});
testWidgets('PlatformRouteInformationProvider works', (WidgetTester tester) async {
final RouteInformationProvider provider = PlatformRouteInformationProvider(
initialRouteInformation: const RouteInformation(
location: 'initial',
),
);
final SimpleRouterDelegate delegate = SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
final List<Widget> children = <Widget>[];
if (information!.location! != null) {
children.add(Text(information.location!));
}
if (information.state != null) {
children.add(Text(information.state.toString()));
}
return Column(
children: children,
);
},
);
await tester.pumpWidget(MaterialApp.router(
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: delegate,
));
expect(find.text('initial'), findsOneWidget);
// Pushes through the `pushRouteInformation` in the navigation method channel.
const Map<String, dynamic> testRouteInformation = <String, dynamic>{
'location': 'testRouteName',
'state': 'state',
};
final ByteData routerMessage = const JSONMethodCodec().encodeMethodCall(
const MethodCall('pushRouteInformation', testRouteInformation),
);
await ServicesBinding.instance.defaultBinaryMessenger.handlePlatformMessage('flutter/navigation', routerMessage, (_) { });
await tester.pump();
expect(find.text('testRouteName'), findsOneWidget);
expect(find.text('state'), findsOneWidget);
// Pushes through the `pushRoute` in the navigation method channel.
const String testRouteName = 'newTestRouteName';
final ByteData message = const JSONMethodCodec().encodeMethodCall(
const MethodCall('pushRoute', testRouteName),
);
await ServicesBinding.instance.defaultBinaryMessenger.handlePlatformMessage('flutter/navigation', message, (_) { });
await tester.pump();
expect(find.text('newTestRouteName'), findsOneWidget);
});
testWidgets('PlatformRouteInformationProvider updates route information', (WidgetTester tester) async {
final List<MethodCall> log = <MethodCall>[];
TestDefaultBinaryMessengerBinding
.instance!
.defaultBinaryMessenger
.setMockMethodCallHandler(
SystemChannels.navigation,
(MethodCall methodCall) async {
log.add(methodCall);
return null;
}
);
final RouteInformationProvider provider = PlatformRouteInformationProvider(
initialRouteInformation: const RouteInformation(
location: 'initial',
),
);
log.clear();
provider.routerReportsNewRouteInformation(const RouteInformation(location: 'a', state: true));
// Implicit reporting pushes new history entry if the location changes.
expect(log, <Object>[
isMethodCall('selectMultiEntryHistory', arguments: null),
isMethodCall('routeInformationUpdated', arguments: <String, dynamic>{ 'location': 'a', 'state': true, 'replace': false }),
]);
log.clear();
provider.routerReportsNewRouteInformation(const RouteInformation(location: 'a', state: false));
// Since the location is the same, the provider sends replaces message.
expect(log, <Object>[
isMethodCall('selectMultiEntryHistory', arguments: null),
isMethodCall('routeInformationUpdated', arguments: <String, dynamic>{ 'location': 'a', 'state': false, 'replace': true }),
]);
log.clear();
provider.routerReportsNewRouteInformation(const RouteInformation(location: 'b', state: false), type: RouteInformationReportingType.neglect);
expect(log, <Object>[
isMethodCall('selectMultiEntryHistory', arguments: null),
isMethodCall('routeInformationUpdated', arguments: <String, dynamic>{ 'location': 'b', 'state': false, 'replace': true }),
]);
log.clear();
provider.routerReportsNewRouteInformation(const RouteInformation(location: 'b', state: false), type: RouteInformationReportingType.navigate);
expect(log, <Object>[
isMethodCall('selectMultiEntryHistory', arguments: null),
isMethodCall('routeInformationUpdated', arguments: <String, dynamic>{ 'location': 'b', 'state': false, 'replace': false }),
]);
});
testWidgets('RootBackButtonDispatcher works', (WidgetTester tester) async {
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
final RouteInformationProvider provider = PlatformRouteInformationProvider(
initialRouteInformation: const RouteInformation(
location: 'initial',
),
);
final SimpleRouterDelegate delegate = SimpleRouterDelegate(
reportConfiguration: true,
builder: (BuildContext context, RouteInformation? information) {
return Text(information!.location!);
},
);
delegate.onPopRoute = () {
delegate.routeInformation = const RouteInformation(
location: 'popped',
);
return SynchronousFuture<bool>(true);
};
await tester.pumpWidget(MaterialApp.router(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: delegate,
));
expect(find.text('initial'), findsOneWidget);
// Pop route through the message channel.
final ByteData message = const JSONMethodCodec().encodeMethodCall(const MethodCall('popRoute'));
await ServicesBinding.instance.defaultBinaryMessenger.handlePlatformMessage('flutter/navigation', message, (_) { });
await tester.pump();
expect(find.text('popped'), findsOneWidget);
});
testWidgets('BackButtonListener takes priority over root back dispatcher', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
// Creates the sub-router.
return Column(
children: <Widget>[
Text(information!.location!),
BackButtonListener(
child: Container(),
onBackButtonPressed: () {
provider.value = const RouteInformation(
location: 'popped inner1',
);
return SynchronousFuture<bool>(true);
},
),
],
);
},
onPopRoute: () {
provider.value = const RouteInformation(
location: 'popped outer',
);
return SynchronousFuture<bool>(true);
},
),
),
));
expect(find.text('initial'), findsOneWidget);
bool result = false;
result = await outerDispatcher.invokeCallback(SynchronousFuture<bool>(false));
expect(result, isTrue);
await tester.pump();
expect(find.text('popped inner1'), findsOneWidget);
});
testWidgets('BackButtonListener updates callback if it has been changed', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
final SimpleRouterDelegate routerDelegate = SimpleRouterDelegate()
..builder = (BuildContext context, RouteInformation? information) {
// Creates the sub-router.
return Column(
children: <Widget>[
Text(information!.location!),
BackButtonListener(
child: Container(),
onBackButtonPressed: () {
provider.value = const RouteInformation(
location: 'first callback',
);
return SynchronousFuture<bool>(true);
},
),
],
);
}
..onPopRoute = () {
provider.value = const RouteInformation(
location: 'popped outer',
);
return SynchronousFuture<bool>(true);
};
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: routerDelegate,
),
));
routerDelegate
..builder = (BuildContext context, RouteInformation? information) {
// Creates the sub-router.
return Column(
children: <Widget>[
Text(information!.location!),
BackButtonListener(
child: Container(),
onBackButtonPressed: () {
provider.value = const RouteInformation(
location: 'second callback',
);
return SynchronousFuture<bool>(true);
},
),
],
);
}
..onPopRoute = () {
provider.value = const RouteInformation(
location: 'popped outer',
);
return SynchronousFuture<bool>(true);
};
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: routerDelegate,
),
));
await tester.pump();
await outerDispatcher.invokeCallback(SynchronousFuture<bool>(false));
await tester.pump();
expect(find.text('second callback'), findsOneWidget);
});
testWidgets('BackButtonListener clears callback if it is disposed', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
final SimpleRouterDelegate routerDelegate = SimpleRouterDelegate()
..builder = (BuildContext context, RouteInformation? information) {
// Creates the sub-router.
return Column(
children: <Widget>[
Text(information!.location!),
BackButtonListener(
child: Container(),
onBackButtonPressed: () {
provider.value = const RouteInformation(
location: 'first callback',
);
return SynchronousFuture<bool>(true);
},
),
],
);
}
..onPopRoute = () {
provider.value = const RouteInformation(
location: 'popped outer',
);
return SynchronousFuture<bool>(true);
};
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: routerDelegate,
),
));
routerDelegate
..builder = (BuildContext context, RouteInformation? information) {
// Creates the sub-router.
return Column(
children: <Widget>[
Text(information!.location!),
],
);
}
..onPopRoute = () {
provider.value = const RouteInformation(
location: 'popped outer',
);
return SynchronousFuture<bool>(true);
};
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: routerDelegate,
),
));
await tester.pump();
await outerDispatcher.invokeCallback(SynchronousFuture<bool>(false));
await tester.pump();
expect(find.text('popped outer'), findsOneWidget);
});
testWidgets('Nested backButtonListener should take priority', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
// Creates the sub-router.
return Column(
children: <Widget>[
Text(information!.location!),
BackButtonListener(
child: BackButtonListener(
child: Container(),
onBackButtonPressed: () {
provider.value = const RouteInformation(
location: 'popped inner2',
);
return SynchronousFuture<bool>(true);
},
),
onBackButtonPressed: () {
provider.value = const RouteInformation(
location: 'popped inner1',
);
return SynchronousFuture<bool>(true);
},
),
],
);
},
onPopRoute: () {
provider.value = const RouteInformation(
location: 'popped outer',
);
return SynchronousFuture<bool>(true);
},
),
),
));
expect(find.text('initial'), findsOneWidget);
bool result = false;
result = await outerDispatcher.invokeCallback(SynchronousFuture<bool>(false));
expect(result, isTrue);
await tester.pump();
expect(find.text('popped inner2'), findsOneWidget);
});
testWidgets('Nested backButtonListener that returns false should call next on the line', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
// Creates the sub-router.
return Column(
children: <Widget>[
Text(information!.location!),
BackButtonListener(
child: BackButtonListener(
child: Container(),
onBackButtonPressed: () {
provider.value = const RouteInformation(
location: 'popped inner2',
);
return SynchronousFuture<bool>(false);
},
),
onBackButtonPressed: () {
provider.value = const RouteInformation(
location: 'popped inner1',
);
return SynchronousFuture<bool>(true);
},
),
],
);
},
onPopRoute: () {
provider.value = const RouteInformation(
location: 'popped outer',
);
return SynchronousFuture<bool>(true);
},
),
),
));
expect(find.text('initial'), findsOneWidget);
bool result = false;
result = await outerDispatcher.invokeCallback(SynchronousFuture<bool>(false));
expect(result, isTrue);
await tester.pump();
expect(find.text('popped inner1'), findsOneWidget);
});
testWidgets('`didUpdateWidget` test', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final BackButtonDispatcher outerDispatcher = RootBackButtonDispatcher();
late StateSetter setState;
String location = 'first callback';
final SimpleRouterDelegate routerDelegate = SimpleRouterDelegate()
..builder = (BuildContext context, RouteInformation? information) {
// Creates the sub-router.
return Column(
children: <Widget>[
Text(information!.location!),
StatefulBuilder(
builder: (BuildContext context, StateSetter setter) {
setState = setter;
return BackButtonListener(
child: Container(),
onBackButtonPressed: () {
provider.value = RouteInformation(
location: location,
);
return SynchronousFuture<bool>(true);
},
);
},
),
],
);
}
..onPopRoute = () {
provider.value = const RouteInformation(
location: 'popped outer',
);
return SynchronousFuture<bool>(true);
};
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
backButtonDispatcher: outerDispatcher,
routeInformationProvider: provider,
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: routerDelegate,
),
));
// Only update BackButtonListener widget.
setState(() {
location = 'second callback';
});
await tester.pump();
await outerDispatcher.invokeCallback(SynchronousFuture<bool>(false));
await tester.pump();
expect(find.text('second callback'), findsOneWidget);
});
testWidgets('Router reports location if it is different from location given by OS', (WidgetTester tester) async {
final List<RouteInformation> reportedRouteInformation = <RouteInformation>[];
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider(
onRouterReport: (RouteInformation info, RouteInformationReportingType type) => reportedRouteInformation.add(info),
)..value = const RouteInformation(location: '/home');
await tester.pumpWidget(buildBoilerPlate(
Router<RouteInformation>(
routeInformationProvider: provider,
routeInformationParser: RedirectingInformationParser(<String, RouteInformation>{
'/doesNotExist' : const RouteInformation(location: '/404'),
}),
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext _, RouteInformation? info) => Text('Current route: ${info?.location}'),
reportConfiguration: true,
),
),
));
expect(find.text('Current route: /home'), findsOneWidget);
expect(reportedRouteInformation.single.location, '/home');
provider.value = const RouteInformation(location: '/doesNotExist');
await tester.pump();
expect(find.text('Current route: /404'), findsOneWidget);
expect(reportedRouteInformation[1].location, '/404');
});
testWidgets('RouterInformationParser can look up dependencies and reparse', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final BackButtonDispatcher dispatcher = RootBackButtonDispatcher();
int expectedMaxLines = 1;
bool parserCalled = false;
final Widget router = Router<RouteInformation>(
routeInformationProvider: provider,
routeInformationParser: CustomRouteInformationParser((RouteInformation information, BuildContext context) {
parserCalled = true;
final DefaultTextStyle style = DefaultTextStyle.of(context);
return RouteInformation(location: '${style.maxLines}');
}),
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
return Text(information!.location!);
},
onPopRoute: () {
provider.value = const RouteInformation(
location: 'popped',
);
return SynchronousFuture<bool>(true);
},
),
backButtonDispatcher: dispatcher,
);
await tester.pumpWidget(buildBoilerPlate(
DefaultTextStyle(
style: const TextStyle(),
maxLines: expectedMaxLines,
child: router,
),
));
expect(find.text('$expectedMaxLines'), findsOneWidget);
expect(parserCalled, isTrue);
parserCalled = false;
expectedMaxLines = 2;
await tester.pumpWidget(buildBoilerPlate(
DefaultTextStyle(
style: const TextStyle(),
maxLines: expectedMaxLines,
child: router,
),
));
await tester.pump();
expect(find.text('$expectedMaxLines'), findsOneWidget);
expect(parserCalled, isTrue);
});
testWidgets('RouterInformationParser can look up dependencies without reparsing', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final BackButtonDispatcher dispatcher = RootBackButtonDispatcher();
const int expectedMaxLines = 1;
bool parserCalled = false;
final Widget router = Router<RouteInformation>(
routeInformationProvider: provider,
routeInformationParser: CustomRouteInformationParser((RouteInformation information, BuildContext context) {
parserCalled = true;
final DefaultTextStyle style = context.getElementForInheritedWidgetOfExactType<DefaultTextStyle>()!.widget as DefaultTextStyle;
return RouteInformation(location: '${style.maxLines}');
}),
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
return Text(information!.location!);
},
onPopRoute: () {
provider.value = const RouteInformation(
location: 'popped',
);
return SynchronousFuture<bool>(true);
},
),
backButtonDispatcher: dispatcher,
);
await tester.pumpWidget(buildBoilerPlate(
DefaultTextStyle(
style: const TextStyle(),
maxLines: expectedMaxLines,
child: router,
),
));
expect(find.text('$expectedMaxLines'), findsOneWidget);
expect(parserCalled, isTrue);
parserCalled = false;
const int newMaxLines = 2;
// This rebuild should not trigger re-parsing.
await tester.pumpWidget(buildBoilerPlate(
DefaultTextStyle(
style: const TextStyle(),
maxLines: newMaxLines,
child: router,
),
));
await tester.pump();
expect(find.text('$newMaxLines'), findsNothing);
expect(find.text('$expectedMaxLines'), findsOneWidget);
expect(parserCalled, isFalse);
});
testWidgets('Looks up dependencies in RouterDelegate does not trigger re-parsing', (WidgetTester tester) async {
final SimpleRouteInformationProvider provider = SimpleRouteInformationProvider();
provider.value = const RouteInformation(
location: 'initial',
);
final BackButtonDispatcher dispatcher = RootBackButtonDispatcher();
int expectedMaxLines = 1;
bool parserCalled = false;
final Widget router = Router<RouteInformation>(
routeInformationProvider: provider,
routeInformationParser: CustomRouteInformationParser((RouteInformation information, BuildContext context) {
parserCalled = true;
return information;
}),
routerDelegate: SimpleRouterDelegate(
builder: (BuildContext context, RouteInformation? information) {
final DefaultTextStyle style = DefaultTextStyle.of(context);
return Text('${style.maxLines}');
},
onPopRoute: () {
provider.value = const RouteInformation(
location: 'popped',
);
return SynchronousFuture<bool>(true);
},
),
backButtonDispatcher: dispatcher,
);
await tester.pumpWidget(buildBoilerPlate(
DefaultTextStyle(
style: const TextStyle(),
maxLines: expectedMaxLines,
child: router,
),
));
expect(find.text('$expectedMaxLines'), findsOneWidget);
// Initial route will be parsed regardless.
expect(parserCalled, isTrue);
parserCalled = false;
expectedMaxLines = 2;
await tester.pumpWidget(buildBoilerPlate(
DefaultTextStyle(
style: const TextStyle(),
maxLines: expectedMaxLines,
child: router,
),
));
await tester.pump();
expect(find.text('$expectedMaxLines'), findsOneWidget);
expect(parserCalled, isFalse);
});
testWidgets('Router can initialize with RouterConfig', (WidgetTester tester) async {
const String expected = 'text';
final RouterConfig<RouteInformation> config = RouterConfig<RouteInformation>(
routeInformationProvider: SimpleRouteInformationProvider()..value = const RouteInformation(location: '/'),
routeInformationParser: SimpleRouteInformationParser(),
routerDelegate: SimpleRouterDelegate(
builder: (_, __) => const Text(expected),
),
backButtonDispatcher: RootBackButtonDispatcher(),
);
final Router<RouteInformation> router = Router<RouteInformation>.withConfig(config: config);
expect(router.routerDelegate, config.routerDelegate);
expect(router.routeInformationParser, config.routeInformationParser);
expect(router.routeInformationProvider, config.routeInformationProvider);
expect(router.backButtonDispatcher, config.backButtonDispatcher);
await tester.pumpWidget(buildBoilerPlate(router));
expect(find.text(expected), findsOneWidget);
});
}
Widget buildBoilerPlate(Widget child) {
return MaterialApp(
home: Scaffold(
body: child,
),
);
}
typedef SimpleRouterDelegateBuilder = Widget Function(BuildContext, RouteInformation?);
typedef SimpleRouterDelegatePopRoute = Future<bool> Function();
typedef SimpleNavigatorRouterDelegatePopPage<T> = bool Function(Route<T> route, T result);
typedef RouterReportRouterInformation = void Function(RouteInformation, RouteInformationReportingType);
typedef CustomRouteInformationParserCallback = RouteInformation Function(RouteInformation, BuildContext);
class SimpleRouteInformationParser extends RouteInformationParser<RouteInformation> {
SimpleRouteInformationParser();
@override
Future<RouteInformation> parseRouteInformation(RouteInformation information) {
return SynchronousFuture<RouteInformation>(information);
}
@override
RouteInformation restoreRouteInformation(RouteInformation configuration) {
return configuration;
}
}
class CustomRouteInformationParser extends RouteInformationParser<RouteInformation> {
const CustomRouteInformationParser(this.callback);
final CustomRouteInformationParserCallback callback;
@override
Future<RouteInformation> parseRouteInformationWithDependencies(RouteInformation information, BuildContext context) {
return SynchronousFuture<RouteInformation>(callback(information, context));
}
@override
RouteInformation restoreRouteInformation(RouteInformation configuration) {
return configuration;
}
}
class SimpleRouterDelegate extends RouterDelegate<RouteInformation> with ChangeNotifier {
SimpleRouterDelegate({
this.builder,
this.onPopRoute,
this.reportConfiguration = false,
});
RouteInformation? get routeInformation => _routeInformation;
RouteInformation? _routeInformation;
set routeInformation(RouteInformation? newValue) {
_routeInformation = newValue;
notifyListeners();
}
SimpleRouterDelegateBuilder? builder;
SimpleRouterDelegatePopRoute? onPopRoute;
final bool reportConfiguration;
@override
RouteInformation? get currentConfiguration {
if (reportConfiguration) {
return routeInformation;
}
return null;
}
@override
Future<void> setNewRoutePath(RouteInformation configuration) {
_routeInformation = configuration;
return SynchronousFuture<void>(null);
}
@override
Future<bool> popRoute() {
return onPopRoute?.call() ?? SynchronousFuture<bool>(true);
}
@override
Widget build(BuildContext context) => builder!(context, routeInformation);
}
class SimpleNavigatorRouterDelegate extends RouterDelegate<RouteInformation> with PopNavigatorRouterDelegateMixin<RouteInformation>, ChangeNotifier {
SimpleNavigatorRouterDelegate({
required this.builder,
required this.onPopPage,
});
@override
GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
RouteInformation get routeInformation => _routeInformation;
late RouteInformation _routeInformation;
set routeInformation(RouteInformation newValue) {
_routeInformation = newValue;
notifyListeners();
}
SimpleRouterDelegateBuilder builder;
SimpleNavigatorRouterDelegatePopPage<void> onPopPage;
@override
Future<void> setNewRoutePath(RouteInformation configuration) {
_routeInformation = configuration;
return SynchronousFuture<void>(null);
}
bool _handlePopPage(Route<void> route, void data) {
return onPopPage(route, data);
}
@override
Widget build(BuildContext context) {
return Navigator(
key: navigatorKey,
onPopPage: _handlePopPage,
pages: <Page<void>>[
// We need at least two pages for the pop to propagate through.
// Otherwise, the navigator will bubble the pop to the system navigator.
const MaterialPage<void>(
child: Text('base'),
),
MaterialPage<void>(
key: ValueKey<String>(routeInformation.location!),
child: builder(context, routeInformation),
),
],
);
}
}
class SimpleRouteInformationProvider extends RouteInformationProvider with ChangeNotifier {
SimpleRouteInformationProvider({
this.onRouterReport,
});
RouterReportRouterInformation? onRouterReport;
@override
RouteInformation get value => _value;
late RouteInformation _value;
set value(RouteInformation newValue) {
_value = newValue;
notifyListeners();
}
@override
void routerReportsNewRouteInformation(RouteInformation routeInformation, {RouteInformationReportingType type = RouteInformationReportingType.none}) {
_value = routeInformation;
onRouterReport?.call(routeInformation, type);
}
}
class SimpleAsyncRouteInformationParser extends RouteInformationParser<RouteInformation> {
SimpleAsyncRouteInformationParser();
late Future<RouteInformation> parsingFuture;
@override
Future<RouteInformation> parseRouteInformation(RouteInformation information) {
return parsingFuture = Future<RouteInformation>.value(information);
}
@override
RouteInformation restoreRouteInformation(RouteInformation configuration) {
return configuration;
}
}
class CompleterRouteInformationParser extends RouteInformationParser<RouteInformation> {
CompleterRouteInformationParser();
late Completer<void> completer;
@override
Future<RouteInformation> parseRouteInformation(RouteInformation information) async {
completer = Completer<void>();
await completer.future;
return SynchronousFuture<RouteInformation>(information);
}
@override
RouteInformation restoreRouteInformation(RouteInformation configuration) {
return configuration;
}
}
class SimpleAsyncRouterDelegate extends RouterDelegate<RouteInformation> with ChangeNotifier {
SimpleAsyncRouterDelegate({
required this.builder,
});
RouteInformation? get routeInformation => _routeInformation;
RouteInformation? _routeInformation;
set routeInformation(RouteInformation? newValue) {
_routeInformation = newValue;
notifyListeners();
}
SimpleRouterDelegateBuilder builder;
late Future<void> setNewRouteFuture;
@override
Future<void> setNewRoutePath(RouteInformation configuration) {
_routeInformation = configuration;
return setNewRouteFuture = Future<void>.value();
}
@override
Future<bool> popRoute() {
return Future<bool>.value(true);
}
@override
Widget build(BuildContext context) => builder(context, routeInformation);
}
class RedirectingInformationParser extends RouteInformationParser<RouteInformation> {
RedirectingInformationParser(this.redirects);
final Map<String, RouteInformation> redirects;
@override
Future<RouteInformation> parseRouteInformation(RouteInformation information) {
return SynchronousFuture<RouteInformation>(redirects[information.location] ?? information);
}
@override
RouteInformation restoreRouteInformation(RouteInformation configuration) {
return configuration;
}
}