[shared_preferences] Add shared_preferences_windows

packages/shared_preferences/shared_preferences_windows/.metadata

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+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: df90bb5fd64e2066594151b9e311d45cd687a80c
+  channel: master
+
+project_type: plugin

packages/shared_preferences/shared_preferences_windows/CHANGELOG.md

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+## 0.0.1
+
+* Initial release to support shared_preferences on Windows.

packages/shared_preferences/shared_preferences_windows/LICENSE

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+// Copyright 2017 The Chromium Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

packages/shared_preferences/shared_preferences_windows/README.md

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+# shared_preferences_windows
+
+The Windows implementation of [`shared_preferences`][1].
+
+## Usage
+
+### Import the package
+
+This package has been endorsed, meaning that you only need to add `shared_preferences`
+as a dependency in your `pubspec.yaml`. It will be automatically included in your app
+when you depend on `package:shared_preferences`.
+
+This is what the above means to your `pubspec.yaml`:
+
+```yaml
+...
+dependencies:
+  ...
+  shared_preferences: ^0.5.7
+  ...
+```
+
+[1]: ../

packages/shared_preferences/shared_preferences_windows/example/.gitignore

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+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Web related
+lib/generated_plugin_registrant.dart
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Exceptions to above rules.
+!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages

packages/shared_preferences/shared_preferences_windows/example/.metadata

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+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: df90bb5fd64e2066594151b9e311d45cd687a80c
+  channel: master
+
+project_type: app

packages/shared_preferences/shared_preferences_windows/example/CHANGELOG.md

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+## 0.0.1
+
+* TODO: Describe initial release.

packages/shared_preferences/shared_preferences_windows/example/LICENSE

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+// Copyright 2017 The Chromium Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

packages/shared_preferences/shared_preferences_windows/example/README.md

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+# shared_preferences_windows_example
+
+Demonstrates how to use the shared_preferences_windows plugin.
+
+## Getting Started
+
+This project is a starting point for a Flutter application.
+
+A few resources to get you started if this is your first Flutter project:
+
+- [Lab: Write your first Flutter app](https://flutter.dev/docs/get-started/codelab)
+- [Cookbook: Useful Flutter samples](https://flutter.dev/docs/cookbook)
+
+For help getting started with Flutter, view our
+[online documentation](https://flutter.dev/docs), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.

packages/shared_preferences/shared_preferences_windows/example/lib/main.dart

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+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// ignore_for_file: public_member_api_docs
+
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:shared_preferences_windows/shared_preferences_windows.dart';
+
+void main() {
+  runApp(MyApp());
+}
+
+class MyApp extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'SharedPreferences Demo',
+      home: SharedPreferencesDemo(),
+    );
+  }
+}
+
+class SharedPreferencesDemo extends StatefulWidget {
+  SharedPreferencesDemo({Key key}) : super(key: key);
+
+  @override
+  SharedPreferencesDemoState createState() => SharedPreferencesDemoState();
+}
+
+class SharedPreferencesDemoState extends State<SharedPreferencesDemo> {
+  final prefs = SharedPreferencesWindows.instance;
+  Future<int> _counter;
+
+  Future<void> _incrementCounter() async {
+    final values = await prefs.getAll();
+    final int counter = (values['counter'] as int ?? 0) + 1;
+
+    setState(() {
+      _counter = prefs.setValue(null, "counter", counter).then((bool success) {
+        return counter;
+      });
+    });
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    _counter = prefs.getAll().then((Map<String, Object> values) {
+      return (values['counter'] ?? 0);
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text("SharedPreferences Demo"),
+      ),
+      body: Center(
+          child: FutureBuilder<int>(
+              future: _counter,
+              builder: (BuildContext context, AsyncSnapshot<int> snapshot) {
+                switch (snapshot.connectionState) {
+                  case ConnectionState.waiting:
+                    return const CircularProgressIndicator();
+                  default:
+                    if (snapshot.hasError) {
+                      return Text('Error: ${snapshot.error}');
+                    } else {
+                      return Text(
+                        'Button tapped ${snapshot.data} time${snapshot.data == 1 ? '' : 's'}.\n\n'
+                        'This should persist across restarts.',
+                      );
+                    }
+                }
+              })),
+      floatingActionButton: FloatingActionButton(
+        onPressed: _incrementCounter,
+        tooltip: 'Increment',
+        child: const Icon(Icons.add),
+      ),
+    );
+  }
+}

packages/shared_preferences/shared_preferences_windows/example/pubspec.yaml

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+name: shared_preferences_windows_example
+description: Demonstrates how to use the shared_preferences_windows plugin.
+
+environment:
+  sdk: ">=2.7.0 <3.0.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+  shared_preferences_windows: ^0.0.1
+
+dependency_overrides:
+  shared_preferences_windows:
+    path: ../
+
+dev_dependencies:
+  flutter_driver:
+    sdk: flutter
+  test: any
+  e2e: ^0.2.0
+  pedantic: ^1.8.0
+
+flutter:
+  uses-material-design: true

packages/shared_preferences/shared_preferences_windows/example/test_driver/shared_preferences_e2e.dart

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+// Copyright 2017, the Chromium project authors.  Please see the AUTHORS file
+// for details. 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_test/flutter_test.dart';
+import 'package:shared_preferences_windows/shared_preferences_windows.dart';
+import 'package:e2e/e2e.dart';
+
+void main() {
+  E2EWidgetsFlutterBinding.ensureInitialized();
+
+  group('SharedPreferencesWindows', () {
+    const Map<String, dynamic> kTestValues = <String, dynamic>{
+      'flutter.String': 'hello world',
+      'flutter.bool': true,
+      'flutter.int': 42,
+      'flutter.double': 3.14159,
+      'flutter.List': <String>['foo', 'bar'],
+    };
+
+    const Map<String, dynamic> kTestValues2 = <String, dynamic>{
+      'flutter.String': 'goodbye world',
+      'flutter.bool': false,
+      'flutter.int': 1337,
+      'flutter.double': 2.71828,
+      'flutter.List': <String>['baz', 'quox'],
+    };
+
+    SharedPreferencesWindows preferences;
+
+    setUp(() async {
+      preferences = SharedPreferencesWindows.instance;
+    });
+
+    tearDown(() {
+      preferences.clear();
+    });
+
+    test('reading', () async {
+      final Map<String, Object> values = await preferences.getAll();
+      expect(values['String'], isNull);
+      expect(values['bool'], isNull);
+      expect(values['int'], isNull);
+      expect(values['double'], isNull);
+      expect(values['List'], isNull);
+    });
+
+    test('writing', () async {
+      await Future.wait(<Future<bool>>[
+        preferences.setValue(
+            'String', 'String', kTestValues2['flutter.String']),
+        preferences.setValue('Bool', 'bool', kTestValues2['flutter.bool']),
+        preferences.setValue('Int', 'int', kTestValues2['flutter.int']),
+        preferences.setValue(
+            'Double', 'double', kTestValues2['flutter.double']),
+        preferences.setValue('StringList', 'List', kTestValues2['flutter.List'])
+      ]);
+      final Map<String, Object> values = await preferences.getAll();
+      expect(values['String'], kTestValues2['flutter.String']);
+      expect(values['bool'], kTestValues2['flutter.bool']);
+      expect(values['int'], kTestValues2['flutter.int']);
+      expect(values['double'], kTestValues2['flutter.double']);
+      expect(values['List'], kTestValues2['flutter.List']);
+    });
+
+    test('removing', () async {
+      const String key = 'testKey';
+      await preferences.setValue('String', key, kTestValues['flutter.String']);
+      await preferences.setValue('Bool', key, kTestValues['flutter.bool']);
+      await preferences.setValue('Int', key, kTestValues['flutter.int']);
+      await preferences.setValue('Double', key, kTestValues['flutter.double']);
+      await preferences.setValue(
+          'StringList', key, kTestValues['flutter.List']);
+      await preferences.remove(key);
+      final Map<String, Object> values = await preferences.getAll();
+      expect(values[key], isNull);
+    });
+
+    test('clearing', () async {
+      await preferences.setValue(
+          'String', 'String', kTestValues['flutter.String']);
+      await preferences.setValue('Bool', 'bool', kTestValues['flutter.bool']);
+      await preferences.setValue('Int', 'int', kTestValues['flutter.int']);
+      await preferences.setValue(
+          'Double', 'double', kTestValues['flutter.double']);
+      await preferences.setValue(
+          'StringList', 'List', kTestValues['flutter.List']);
+      await preferences.clear();
+      final Map<String, Object> values = await preferences.getAll();
+      expect(values['String'], null);
+      expect(values['bool'], null);
+      expect(values['int'], null);
+      expect(values['double'], null);
+      expect(values['List'], null);
+    });
+  });
+}

packages/shared_preferences/shared_preferences_windows/example/test_driver/shared_preferences_e2e_test.dart

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+// Copyright 2017, the Chromium project authors.  Please see the AUTHORS file
+// for details. 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 'dart:io';
+import 'package:flutter_driver/flutter_driver.dart';
+
+Future<void> main() async {
+  final FlutterDriver driver = await FlutterDriver.connect();
+  final String result =
+      await driver.requestData(null, timeout: const Duration(minutes: 1));
+  await driver.close();
+  exit(result == 'pass' ? 0 : 1);
+}