mirror of https://github.com/flutter/samples.git
48 lines
1.3 KiB
48 lines
1.3 KiB
// Copyright 2021, the Flutter project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'package:flutter/widgets.dart';
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/// A mock authentication service
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class BookstoreAuth extends ChangeNotifier {
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bool _signedIn = false;
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bool get signedIn => _signedIn;
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Future<void> signOut() async {
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await Future<void>.delayed(const Duration(milliseconds: 200));
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// Sign out.
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_signedIn = false;
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notifyListeners();
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}
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Future<bool> signIn(String username, String password) async {
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await Future<void>.delayed(const Duration(milliseconds: 200));
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// Sign in. Allow any password.
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_signedIn = true;
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notifyListeners();
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return _signedIn;
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}
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@override
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bool operator ==(Object other) =>
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other is BookstoreAuth && other._signedIn == _signedIn;
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@override
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int get hashCode => _signedIn.hashCode;
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}
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class BookstoreAuthScope extends InheritedNotifier<BookstoreAuth> {
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const BookstoreAuthScope({
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required super.notifier,
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required super.child,
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super.key,
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});
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static BookstoreAuth of(BuildContext context) => context
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.dependOnInheritedWidgetOfExactType<BookstoreAuthScope>()!
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.notifier!;
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}
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