Add windows app, build scripts and build guide for it.

.metadata

@@ -1,11 +1,11 @@
 # 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.
+# This file should be version controlled and should not be manually edited.
 
 version:
-  revision: e3c29ec00c9c825c891d75054c63fcc46454dca1
+  revision: "367f9ea16bfae1ca451b9cc27c1366870b187ae2"
-  channel: stable
+  channel: "stable"
 
 project_type: app
 
@@ -13,11 +13,11 @@ project_type: app
 migration:
   platforms:
     - platform: root
-      create_revision: e3c29ec00c9c825c891d75054c63fcc46454dca1
+      create_revision: 367f9ea16bfae1ca451b9cc27c1366870b187ae2
-      base_revision: e3c29ec00c9c825c891d75054c63fcc46454dca1
+      base_revision: 367f9ea16bfae1ca451b9cc27c1366870b187ae2
-    - platform: macos
+    - platform: windows
-      create_revision: e3c29ec00c9c825c891d75054c63fcc46454dca1
+      create_revision: 367f9ea16bfae1ca451b9cc27c1366870b187ae2
-      base_revision: e3c29ec00c9c825c891d75054c63fcc46454dca1
+      base_revision: 367f9ea16bfae1ca451b9cc27c1366870b187ae2
 
   # User provided section
 

build-guide-win.md

@@ -0,0 +1,30 @@
+# Building CakeWallet for Windows
+
+## Requirements and Setup
+
+The following are the system requirements to build CakeWallet for your Windows PC.
+
+```
+Windows 10 or later (64-bit), x86-64 based
+Flutter 3 or above
+```
+
+## Building CakeWallet on Windows
+
+These steps will help you configure and execute a build of CakeWallet from its source code.
+
+### 1. Installing Package Dependencies
+
+For build CakeWallet windows application from sources you will be needed to have:
+> [Install Flutter](https://docs.flutter.dev/get-started/install/windows) follow this guide until `Android setup` section (it's not necessary for this build process).
+> [Install adition for Flutter SDK](https://docs.flutter.dev/platform-integration/desktop#additional-windows-requirements). Then install `Desktop development with C++` packages via GUI Visual Studio 2022, or Visual Studio Build Tools 2022 including: `C++ Build Tools core features`, `C++ 2022 Redistributable Update`, `C++ core desktop features`, `MVC v143 - VS 2022 C++ x64/x86 build tools`, `C++ CMake tools for Windwos`, `Testing tools core features - Build Tools`, `C++ AddressSanitizer`.
+
+### 2. Pull CakeWallet source code
+
+You can downlaod CakeWallet source code from our [GitHub repository](github.com/cake-tech/cake_wallet) via git by following next command:
+`$ git clone https://github.com/cake-tech/cake_wallet.git --branch windows`
+OR you can download it as [Zip archive](https://github.com/cake-tech/cake_wallet/archive/refs/heads/windows.zip)
+
+### 3. Configure and build CakeWallet application
+To configure the application open directory where you have downloaded or unarchived CakeWallet sources and run `cakewallet.bat`.
+After execution of `cakewallet.bat` you should to get `Cake Wallet.zip` in project root directory which will contains `CakeWallet.exe` file and another needed files for run the application. Now you can extract files from `Cake Wallet.zip` archive and run the application.

cakewallet.bat

@@ -0,0 +1,47 @@
+@echo off
+set cw_win_app_config=--bitcoin --ethereum
+set cw_root=%cd%
+set cw_archive_name=Cake Wallet.zip
+set cw_archive_path=%cw_root%\%cw_archive_name%
+set secrets_file_path=lib\.secrets.g.dart
+set release_dir=build\windows\runner\Release
+set tools_root=C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Redist\MSVC\14.36.32532\x64\Microsoft.VC143.CRT
+
+echo === Generating pubspec.yaml ===
+copy /Y pubspec_description.yaml pubspec.yaml > nul
+call flutter pub get > nul
+call dart run tool\generate_pubspec.dart
+call flutter pub get > nul
+call dart run tool\configure.dart %cw_win_app_config%
+
+IF NOT EXIST "%secrets_file_path%" (
+    echo === Generating new secrets file ===
+    call dart run tool\generate_new_secrets.dart
+) ELSE (echo === Using previously/already generated secrets file: %secrets_file_path% ===)
+
+echo === Generating mobx models ===
+for /d %%i in (cw_core cw_bitcoin cw_ethereum cw_monero .) do (
+    cd %%i
+    call flutter pub get > nul
+    call dart run build_runner build --delete-conflicting-outputs > nul
+    cd /d %cw_root%
+)
+
+echo === Generating localization files ===
+call dart run tool\generate_localization.dart
+
+echo === Building the application executable file ===
+call flutter build windows --dart-define-from-file=env.json --release
+
+echo === Prepare distribution actions. Copy needed files to the application bundle ===
+copy /Y "%tools_root%\msvcp140.dll" "%release_dir%\" > nul
+copy /Y "%tools_root%\vcruntime140.dll" "%release_dir%\" > nul
+copy /Y "%tools_root%\vcruntime140_1.dll" "%release_dir%\" > nul
+
+echo === Generate the application archive ===
+xcopy /s /e /v /Y "%release_dir%\*.*" "build\Cake Wallet\" > nul
+tar acf "%cw_archive_name%" -C build\ "Cake Wallet"
+
+echo === Open Explorer with the application archive ===
+echo Cake Wallet created archive at: %cw_archive_path%
+%SystemRoot%\explorer.exe /select, %cw_archive_path%

cw_bitcoin/pubspec.lock

@@ -217,10 +217,10 @@ packages:
     dependency: transitive
     description:
       name: collection
-      sha256: "4a07be6cb69c84d677a6c3096fcf960cc3285a8330b4603e0d463d15d9bd934c"
+      sha256: f092b211a4319e98e5ff58223576de6c2803db36221657b46c82574721240687
       url: "https://pub.dev"
     source: hosted
-    version: "1.17.1"
+    version: "1.17.2"
   convert:
     dependency: transitive
     description:
@@ -434,18 +434,18 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      sha256: "6501fbd55da300384b768785b83e5ce66991266cec21af89ab9ae7f5ce1c4cbb"
+      sha256: "1803e76e6653768d64ed8ff2e1e67bea3ad4b923eb5c56a295c3e634bad5960e"
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.15"
+    version: "0.12.16"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: d92141dc6fe1dad30722f9aa826c7fbc896d021d792f80678280601aff8cf724
+      sha256: "9528f2f296073ff54cb9fee677df673ace1218163c3bc7628093e7eed5203d41"
       url: "https://pub.dev"
     source: hosted
-    version: "0.2.0"
+    version: "0.5.0"
   meta:
     dependency: transitive
     description:
@@ -663,10 +663,10 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      sha256: dd904f795d4b4f3b870833847c461801f6750a9fa8e61ea5ac53f9422b31f250
+      sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
       url: "https://pub.dev"
     source: hosted
-    version: "1.9.1"
+    version: "1.10.0"
   stack_trace:
     dependency: transitive
     description:
@@ -711,10 +711,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: eb6ac1540b26de412b3403a163d919ba86f6a973fe6cc50ae3541b80092fdcfb
+      sha256: "75760ffd7786fffdfb9597c35c5b27eaeec82be8edfb6d71d32651128ed7aab8"
       url: "https://pub.dev"
     source: hosted
-    version: "0.5.1"
+    version: "0.6.0"
   timing:
     dependency: transitive
     description:

cw_core/lib/pathForWallet.dart

@@ -1,9 +1,10 @@
 import 'dart:io';
+import 'package:cw_core/root_dir.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:path_provider/path_provider.dart';
 
 Future<String> pathForWalletDir({required String name, required  WalletType type}) async {
-  final root = await getApplicationDocumentsDirectory();
+  final root = await getAppDir();
   final prefix = walletTypeToString(type).toLowerCase();
   final walletsDir = Directory('${root.path}/wallets');
   final walletDire = Directory('${walletsDir.path}/$prefix/$name');
@@ -20,7 +21,7 @@ Future<String> pathForWallet({required String name, required WalletType type}) a
         .then((path) => path + '/$name');
 
 Future<String> outdatedAndroidPathForWalletDir({required String name}) async {
-  final directory = await getApplicationDocumentsDirectory();
+  final directory = await getAppDir();
   final pathDir = directory.path + '/$name';
 
   return pathDir;

cw_core/lib/root_dir.dart

@@ -0,0 +1,28 @@
+import 'dart:io';
+import 'package:path_provider/path_provider.dart';
+
+String? _rootDirPath;
+
+void setRootDirFromEnv()
+	=> _rootDirPath = Platform.environment['CAKE_WALLET_DIR'];
+
+Future<Directory> getAppDir({String appName = 'cake_wallet'}) async {
+	Directory dir;
+
+	if (_rootDirPath != null && _rootDirPath!.isNotEmpty) {
+		dir = Directory.fromUri(Uri.file(_rootDirPath!));
+		dir.create(recursive: true);
+	} else {
+		dir = await getApplicationDocumentsDirectory();
+
+        if (Platform.isWindows) {
+            dir = await getApplicationSupportDirectory();
+        } else if (Platform.isLinux) {
+			final appDirPath = '${dir.path}/$appName';
+			dir = Directory.fromUri(Uri.file(appDirPath));
+			await dir.create(recursive: true);
+		}
+	}
+
+	return dir;
+}

cw_core/lib/sec_random_native.dart

@@ -1,3 +1,5 @@
+import 'dart:io';
+import 'dart:math';
 import 'dart:typed_data';
 
 import 'package:flutter/services.dart';
@@ -6,6 +8,12 @@ const utils = const MethodChannel('com.cake_wallet/native_utils');
 
 Future<Uint8List> secRandom(int count) async {
   try {
+    if (Platform.isWindows || Platform.isLinux) {
+      // Used method to get securely generated random bytes from cake backups
+      const byteSize = 256;
+      final rng = Random.secure();
+      return Uint8List.fromList(List<int>.generate(count, (_) => rng.nextInt(byteSize)));
+    }
     return await utils.invokeMethod<Uint8List>('sec_random', {'count': count}) ?? Uint8List.fromList([]);
   } on PlatformException catch (_) {
     return Uint8List.fromList([]);

cw_core/pubspec.lock

@@ -149,10 +149,10 @@ packages:
     dependency: transitive
     description:
       name: collection
-      sha256: "4a07be6cb69c84d677a6c3096fcf960cc3285a8330b4603e0d463d15d9bd934c"
+      sha256: f092b211a4319e98e5ff58223576de6c2803db36221657b46c82574721240687
       url: "https://pub.dev"
     source: hosted
-    version: "1.17.1"
+    version: "1.17.2"
   convert:
     dependency: transitive
     description:
@@ -343,18 +343,18 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      sha256: "6501fbd55da300384b768785b83e5ce66991266cec21af89ab9ae7f5ce1c4cbb"
+      sha256: "1803e76e6653768d64ed8ff2e1e67bea3ad4b923eb5c56a295c3e634bad5960e"
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.15"
+    version: "0.12.16"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: d92141dc6fe1dad30722f9aa826c7fbc896d021d792f80678280601aff8cf724
+      sha256: "9528f2f296073ff54cb9fee677df673ace1218163c3bc7628093e7eed5203d41"
       url: "https://pub.dev"
     source: hosted
-    version: "0.2.0"
+    version: "0.5.0"
   meta:
     dependency: transitive
     description:
@@ -564,10 +564,10 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      sha256: dd904f795d4b4f3b870833847c461801f6750a9fa8e61ea5ac53f9422b31f250
+      sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
       url: "https://pub.dev"
     source: hosted
-    version: "1.9.1"
+    version: "1.10.0"
   stack_trace:
     dependency: transitive
     description:
@@ -612,10 +612,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: eb6ac1540b26de412b3403a163d919ba86f6a973fe6cc50ae3541b80092fdcfb
+      sha256: "75760ffd7786fffdfb9597c35c5b27eaeec82be8edfb6d71d32651128ed7aab8"
       url: "https://pub.dev"
     source: hosted
-    version: "0.5.1"
+    version: "0.6.0"
   timing:
     dependency: transitive
     description:

cw_haven/pubspec.lock

@@ -149,10 +149,10 @@ packages:
     dependency: transitive
     description:
       name: collection
-      sha256: "4a07be6cb69c84d677a6c3096fcf960cc3285a8330b4603e0d463d15d9bd934c"
+      sha256: f092b211a4319e98e5ff58223576de6c2803db36221657b46c82574721240687
       url: "https://pub.dev"
     source: hosted
-    version: "1.17.1"
+    version: "1.17.2"
   convert:
     dependency: transitive
     description:
@@ -350,18 +350,18 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      sha256: "6501fbd55da300384b768785b83e5ce66991266cec21af89ab9ae7f5ce1c4cbb"
+      sha256: "1803e76e6653768d64ed8ff2e1e67bea3ad4b923eb5c56a295c3e634bad5960e"
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.15"
+    version: "0.12.16"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: d92141dc6fe1dad30722f9aa826c7fbc896d021d792f80678280601aff8cf724
+      sha256: "9528f2f296073ff54cb9fee677df673ace1218163c3bc7628093e7eed5203d41"
       url: "https://pub.dev"
     source: hosted
-    version: "0.2.0"
+    version: "0.5.0"
   meta:
     dependency: transitive
     description:
@@ -563,10 +563,10 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      sha256: dd904f795d4b4f3b870833847c461801f6750a9fa8e61ea5ac53f9422b31f250
+      sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
       url: "https://pub.dev"
     source: hosted
-    version: "1.9.1"
+    version: "1.10.0"
   stack_trace:
     dependency: transitive
     description:
@@ -611,7 +611,7 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: eb6ac1540b26de412b3403a163d919ba86f6a973fe6cc50ae3541b80092fdcfb
+      sha256: "75760ffd7786fffdfb9597c35c5b27eaeec82be8edfb6d71d32651128ed7aab8"
       url: "https://pub.dev"
     source: hosted
     version: "0.5.1"

cw_monero/pubspec.lock

@@ -149,10 +149,10 @@ packages:
     dependency: transitive
     description:
       name: collection
-      sha256: "4a07be6cb69c84d677a6c3096fcf960cc3285a8330b4603e0d463d15d9bd934c"
+      sha256: f092b211a4319e98e5ff58223576de6c2803db36221657b46c82574721240687
       url: "https://pub.dev"
     source: hosted
-    version: "1.17.1"
+    version: "1.17.2"
   convert:
     dependency: transitive
     description:
@@ -366,18 +366,18 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      sha256: "6501fbd55da300384b768785b83e5ce66991266cec21af89ab9ae7f5ce1c4cbb"
+      sha256: "1803e76e6653768d64ed8ff2e1e67bea3ad4b923eb5c56a295c3e634bad5960e"
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.15"
+    version: "0.12.16"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: d92141dc6fe1dad30722f9aa826c7fbc896d021d792f80678280601aff8cf724
+      sha256: "9528f2f296073ff54cb9fee677df673ace1218163c3bc7628093e7eed5203d41"
       url: "https://pub.dev"
     source: hosted
-    version: "0.2.0"
+    version: "0.5.0"
   meta:
     dependency: transitive
     description:
@@ -596,10 +596,10 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      sha256: dd904f795d4b4f3b870833847c461801f6750a9fa8e61ea5ac53f9422b31f250
+      sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
       url: "https://pub.dev"
     source: hosted
-    version: "1.9.1"
+    version: "1.10.0"
   stack_trace:
     dependency: transitive
     description:
@@ -644,10 +644,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: eb6ac1540b26de412b3403a163d919ba86f6a973fe6cc50ae3541b80092fdcfb
+      sha256: "75760ffd7786fffdfb9597c35c5b27eaeec82be8edfb6d71d32651128ed7aab8"
       url: "https://pub.dev"
     source: hosted
-    version: "0.5.1"
+    version: "0.6.0"
   timing:
     dependency: transitive
     description:
@@ -680,6 +680,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.2"
+  web:
+    dependency: transitive
+    description:
+      name: web
+      sha256: dc8ccd225a2005c1be616fe02951e2e342092edf968cf0844220383757ef8f10
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.1.4-beta"
   web_socket_channel:
     dependency: transitive
     description:

env.json

@@ -0,0 +1,6 @@
+{
+    "CW_WIN_APP_NAME":"Cake Wallet",
+    "CW_WIN_APP_PACKAGE_NAME": "com.cakewallet.cake_wallet",
+    "CW_WIN_APP_VERSION": "1.0.0",
+    "CW_WIN_APP_BUILD_NUMBER": "1"
+}

lib/core/backup_service.dart

@@ -3,6 +3,7 @@ import 'dart:io';
 import 'dart:typed_data';
 import 'package:cake_wallet/themes/theme_list.dart';
 import 'package:cake_wallet/utils/device_info.dart';
+import 'package:cw_core/root_dir.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:flutter/foundation.dart';
 import 'package:hive/hive.dart';
@@ -76,7 +77,7 @@ class BackupService {
 
   Future<Uint8List> _exportBackupV2(String password) async {
     final zipEncoder = ZipFileEncoder();
-    final appDir = await getApplicationDocumentsDirectory();
+    final appDir = await getAppDir();
     final now = DateTime.now();
     final tmpDir = Directory('${appDir.path}/~_BACKUP_TMP');
     final archivePath = '${tmpDir.path}/backup_${now.toString()}.zip';
@@ -116,7 +117,7 @@ class BackupService {
   }
 
   Future<void> _importBackupV1(Uint8List data, String password, {required String nonce}) async {
-    final appDir = await getApplicationDocumentsDirectory();
+    final appDir = await getAppDir();
     final decryptedData = await _decryptV1(data, password, nonce);
     final zip = ZipDecoder().decodeBytes(decryptedData);
 
@@ -139,7 +140,7 @@ class BackupService {
   }
 
   Future<void> _importBackupV2(Uint8List data, String password) async {
-    final appDir = await getApplicationDocumentsDirectory();
+    final appDir = await getAppDir();
     final decryptedData = await _decryptV2(data, password);
     final zip = ZipDecoder().decodeBytes(decryptedData);
 
@@ -172,7 +173,7 @@ class BackupService {
   }
 
   Future<Box<WalletInfo>> _reloadHiveWalletInfoBox() async {
-    final appDir = await getApplicationDocumentsDirectory();
+    final appDir = await getAppDir();
     await CakeHive.close();
     CakeHive.init(appDir.path);
 
@@ -184,7 +185,7 @@ class BackupService {
   }
 
   Future<void> _importPreferencesDump() async {
-    final appDir = await getApplicationDocumentsDirectory();
+    final appDir = await getAppDir();
     final preferencesFile = File('${appDir.path}/~_preferences_dump');
 
     if (!preferencesFile.existsSync()) {
@@ -361,7 +362,7 @@ class BackupService {
 
   Future<void> _importKeychainDumpV1(String password,
       {required String nonce, String keychainSalt = secrets.backupKeychainSalt}) async {
-    final appDir = await getApplicationDocumentsDirectory();
+    final appDir = await getAppDir();
     final keychainDumpFile = File('${appDir.path}/~_keychain_dump');
     final decryptedKeychainDumpFileData =
         await _decryptV1(keychainDumpFile.readAsBytesSync(), '$keychainSalt$password', nonce);
@@ -389,7 +390,7 @@ class BackupService {
 
   Future<void> _importKeychainDumpV2(String password,
       {String keychainSalt = secrets.backupKeychainSalt}) async {
-    final appDir = await getApplicationDocumentsDirectory();
+    final appDir = await getAppDir();
     final keychainDumpFile = File('${appDir.path}/~_keychain_dump');
     final decryptedKeychainDumpFileData =
         await _decryptV2(keychainDumpFile.readAsBytesSync(), '$keychainSalt$password');

lib/entities/language_service.dart

@@ -63,6 +63,8 @@ class LanguageService {
 
   static final list = <String, String>{};
 
+  static const defaultLocale = 'en';
+
   static void loadLocaleList() {
     supportedLocales.forEach((key, value) {
       if (locales.contains(key)) {
@@ -72,9 +74,16 @@ class LanguageService {
   }
 
   static Future<String> localeDetection() async {
+    try {
         var locale = await Devicelocale.currentLocale ?? '';
         locale = Intl.shortLocale(locale);
 
-    return list.keys.contains(locale) ? locale : 'en';
+        if (list.keys.contains(locale)) {
+            return locale;
+        }
+        return LanguageService.defaultLocale;
+    } catch(_) {
+        return LanguageService.defaultLocale;
+    }
   }
 }

lib/locales/hausa_intl.dart

@@ -751,6 +751,27 @@ class HaMaterialLocalizations extends GlobalMaterialLocalizations {
 
   @override
   String get scrimOnTapHintRaw => "Scrip on Tap";
+
+  @override
+  String get collapsedHint => 'Expanded';
+
+  @override
+  String get expandedHint => 'Collapsed';
+
+  @override
+  String get expansionTileCollapsedHint => 'double tap to expand';
+
+  @override
+  String get expansionTileCollapsedTapHint => 'Expand for more details';
+
+  @override
+  String get expansionTileExpandedHint => 'double tap to collapse';
+
+  @override
+  String get expansionTileExpandedTapHint => 'Collapse';
+
+  @override
+  String get scanTextButtonLabel => 'Scan';
 }
 
 /// Cupertino Support

lib/locales/yoruba_intl.dart

@@ -751,6 +751,27 @@ String get keyboardKeyMetaWindows => 'Windows';
 
   @override
   String get scrimOnTapHintRaw => "Scrip on Tap";
+
+  @override
+  String get collapsedHint => 'Expanded';
+
+  @override
+  String get expandedHint => 'Collapsed';
+
+  @override
+  String get expansionTileCollapsedHint => 'double tap to expand';
+
+  @override
+  String get expansionTileCollapsedTapHint => 'Expand for more details';
+
+  @override
+  String get expansionTileExpandedHint => 'double tap to collapse';
+
+  @override
+  String get expansionTileExpandedTapHint => 'Collapse';
+
+  @override
+  String get scanTextButtonLabel => 'Scan';
 }
 
 /// Cupertino Support

lib/main.dart

@@ -40,6 +40,7 @@ import 'package:flutter_mobx/flutter_mobx.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:hive/hive.dart';
 import 'package:path_provider/path_provider.dart';
+import 'package:cw_core/root_dir.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:uni_links/uni_links.dart';
 
@@ -72,7 +73,8 @@ Future<void> main() async {
 }
 
 Future<void> initializeAppConfigs() async {
-  final appDir = await getApplicationDocumentsDirectory();
+  setRootDirFromEnv();
+  final appDir = await getAppDir();
   CakeHive.init(appDir.path);
 
   if (!CakeHive.isAdapterRegistered(Contact.typeId)) {

lib/monero/cw_monero.dart

@@ -335,4 +335,9 @@ class CWMonero extends Monero {
     final moneroWallet = wallet as MoneroWallet;
     await moneroWallet.updateUnspent();
   }
+
+  @override
+  Future<int> getCurrentHeight() async {
+    return monero_wallet.getCurrentHeight();
+  }
 }

lib/store/settings_store.dart

@@ -28,7 +28,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:hive/hive.dart';
 import 'package:mobx/mobx.dart';
-import 'package:package_info/package_info.dart';
+import 'package:cake_wallet/utils/package_info.dart';
 import 'package:cake_wallet/di.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:shared_preferences/shared_preferences.dart';

lib/utils/distribution_info.dart

@@ -1,5 +1,5 @@
 import 'dart:io';
-import 'package:package_info/package_info.dart';
+import 'package:cake_wallet/utils/package_info.dart';
 
 enum DistributionType { googleplay, github, appstore, fdroid }
 

lib/utils/exception_handler.dart

@@ -5,11 +5,12 @@ import 'package:cake_wallet/generated/i18n.dart';
 import 'package:cake_wallet/main.dart';
 import 'package:cake_wallet/src/widgets/alert_with_two_actions.dart';
 import 'package:cake_wallet/utils/show_pop_up.dart';
+import 'package:cw_core/root_dir.dart';
 import 'package:device_info_plus/device_info_plus.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_mailer/flutter_mailer.dart';
-import 'package:package_info/package_info.dart';
+import 'package:cake_wallet/utils/package_info.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
@@ -52,8 +53,7 @@ class ExceptionHandler {
 
   static void _sendExceptionFile() async {
     try {
-      if (_file == null) {
+      final appDocDir = await getAppDir();
-        final appDocDir = await getApplicationDocumentsDirectory();
 
         _file = File('${appDocDir.path}/error.txt');
       }

lib/utils/package_info.dart

@@ -0,0 +1,54 @@
+import 'dart:io';
+import 'package:package_info/package_info.dart' as __package_info__;
+
+abstract class _EnvKeys {
+    static const kWinAppName = 'CW_WIN_APP_NAME';
+    static const kWinAppPackageName = 'CW_WIN_APP_PACKAGE_NAME';
+    static const kWinAppVersion = 'CW_WIN_APP_VERSION';
+    static const kWinAppBuildNumber = 'CW_WIN_APP_BUILD_NUMBER';
+}
+
+class PackageInfo {
+    static Future<PackageInfo> fromPlatform() async {
+        if (Platform.isWindows) {
+            return _windowsPackageInfo;
+        }
+
+        final packageInfo = await __package_info__.PackageInfo.fromPlatform();
+        return PackageInfo._(
+            appName: packageInfo.appName,
+            packageName: packageInfo.packageName,
+            version: packageInfo.version,
+            buildNumber: packageInfo.buildNumber);
+    }
+
+    static const _defaultCWAppName = 'Cake Wallet';
+    static const _defaultCWAppPackageName = 'com.cakewallet.cake_wallet';
+    static const _defaultCWAppVersion = '1.0.0';
+    static const _defaultCWAppBuildNumber = '1';
+
+    static const _windowsPackageInfo = PackageInfo._(
+        appName: const String
+            .fromEnvironment(_EnvKeys.kWinAppName,
+                defaultValue: _defaultCWAppName),
+        packageName: const String
+            .fromEnvironment(_EnvKeys.kWinAppPackageName,
+                defaultValue: _defaultCWAppPackageName),
+        version: const String
+            .fromEnvironment(_EnvKeys.kWinAppVersion,
+                defaultValue: _defaultCWAppVersion),
+        buildNumber: const String
+            .fromEnvironment(_EnvKeys.kWinAppBuildNumber,
+                defaultValue: _defaultCWAppBuildNumber));
+
+    final String appName;
+    final String packageName;
+    final String version;
+    final String buildNumber;
+
+    const PackageInfo._({
+        required this.appName,
+        required this.packageName,
+        required this.version,
+        required this.buildNumber});
+}

lib/view_model/backup_view_model.dart

@@ -3,6 +3,7 @@ import 'package:cake_wallet/core/backup_service.dart';
 import 'package:cake_wallet/core/execution_state.dart';
 import 'package:cake_wallet/entities/secret_store_key.dart';
 import 'package:cake_wallet/store/secret_store.dart';
+import 'package:cw_core/root_dir.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:mobx/mobx.dart';
@@ -73,7 +74,7 @@ abstract class BackupViewModelBase with Store {
   }
 
   Future<String> saveBackupFileLocally(BackupExportFile backup) async {
-    final appDir = await getApplicationDocumentsDirectory();
+    final appDir = await getAppDir();
     final path = '${appDir.path}/${backup.name}';
     final backupFile = File(path);
     await backupFile.writeAsBytes(backup.content);
@@ -81,7 +82,7 @@ abstract class BackupViewModelBase with Store {
   }
 
   Future<void> removeBackupFileLocally(BackupExportFile backup) async {
-    final appDir = await getApplicationDocumentsDirectory();
+    final appDir = await getAppDir();
     final path = '${appDir.path}/${backup.name}';
     final backupFile = File(path);
     await backupFile.delete();

lib/view_model/settings/other_settings_view_model.dart

@@ -12,6 +12,7 @@ import 'package:cw_core/wallet_type.dart';
 import 'package:mobx/mobx.dart';
 import 'package:package_info/package_info.dart';
 import 'package:collection/collection.dart';
+import 'package:cake_wallet/utils/package_info.dart';
 
 part 'other_settings_view_model.g.dart';
 

lib/view_model/wallet_keys_view_model.dart

@@ -148,7 +148,7 @@ abstract class WalletKeysViewModelBase with Store {
       return await haven!.getCurrentHeight();
     }
     if (_appStore.wallet!.type == WalletType.monero) {
-      return monero_wallet.getCurrentHeight();
+      return await monero!.getCurrentHeight();
     }
     return null;
   }

lib/wallet_type_utils.dart

@@ -16,6 +16,10 @@ bool get isSingleCoin {
      return availableWalletTypes.length == 1;
 }
 
+bool get hasMonero {
+    return availableWalletTypes.contains(WalletType.monero);
+}
+
 String get approximatedAppName {
     if (isMoneroOnly) {
         return 'Monero.com';   

tool/configure.dart

@@ -184,7 +184,6 @@ Future<void> generateMonero(bool hasImplementation) async {
   const moneroCommonHeaders = """
 import 'package:cw_core/unspent_transaction_output.dart';
 import 'package:cw_core/unspent_coins_info.dart';
-import 'package:cw_monero/monero_unspent.dart';
 import 'package:mobx/mobx.dart';
 import 'package:cw_core/wallet_credentials.dart';
 import 'package:cw_core/wallet_info.dart';
@@ -297,6 +296,8 @@ abstract class Monero {
   List<Unspent> getUnspents(Object wallet);
   Future<void> updateUnspents(Object wallet);
 
+  Future<int> getCurrentHeight();
+
   WalletCredentials createMoneroRestoreWalletFromKeysCredentials({
     required String name,
     required String spendKey,
@@ -317,7 +318,7 @@ abstract class Monero {
   void setCurrentAccount(Object wallet, int id, String label, String? balance);
   void onStartup();
   int getTransactionInfoAccountId(TransactionInfo tx);
-  WalletService createMoneroWalletService(Box<WalletInfo> walletInfoSource, Box<UnspentCoinsInfo> unspentCoinSource);
+  WalletService createMoneroWalletService(Box<WalletInfo> walletInfoSource, Box<dynamic> unspentCoinSource);
   Map<String, String> pendingTransactionInfo(Object transaction);
 }
 
@@ -1057,7 +1058,10 @@ Future<void> generatePubspec(
   final inputFile = File(pubspecOutputPath);
   final inputText = await inputFile.readAsString();
   final inputLines = inputText.split('\n');
-  final dependenciesIndex = inputLines.indexWhere((line) => line.toLowerCase().contains('dependencies:'));
+  final dependenciesIndex = inputLines.indexWhere(
+	(line) => Platform.isWindows
+	? line.toLowerCase() == 'dependencies:\r' // On Windows it could contains `\r` (Carriage Return)
+	: line.toLowerCase() == 'dependencies:');
   var output = cwCore;
 
   if (hasMonero) {

windows/.gitignore

@@ -0,0 +1,17 @@
+flutter/ephemeral/
+
+# Visual Studio user-specific files.
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Visual Studio build-related files.
+x64/
+x86/
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/

windows/CMakeLists.txt

@@ -0,0 +1,102 @@
+# Project-level configuration.
+cmake_minimum_required(VERSION 3.14)
+project(cake_wallet LANGUAGES CXX)
+
+# The name of the executable created for the application. Change this to change
+# the on-disk name of your application.
+set(BINARY_NAME "CakeWallet")
+
+# Explicitly opt in to modern CMake behaviors to avoid warnings with recent
+# versions of CMake.
+cmake_policy(VERSION 3.14...3.25)
+
+# Define build configuration option.
+get_property(IS_MULTICONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
+if(IS_MULTICONFIG)
+  set(CMAKE_CONFIGURATION_TYPES "Debug;Profile;Release"
+    CACHE STRING "" FORCE)
+else()
+  if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+    set(CMAKE_BUILD_TYPE "Debug" CACHE
+      STRING "Flutter build mode" FORCE)
+    set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+      "Debug" "Profile" "Release")
+  endif()
+endif()
+# Define settings for the Profile build mode.
+set(CMAKE_EXE_LINKER_FLAGS_PROFILE "${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
+set(CMAKE_SHARED_LINKER_FLAGS_PROFILE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE}")
+set(CMAKE_C_FLAGS_PROFILE "${CMAKE_C_FLAGS_RELEASE}")
+set(CMAKE_CXX_FLAGS_PROFILE "${CMAKE_CXX_FLAGS_RELEASE}")
+
+# Use Unicode for all projects.
+add_definitions(-DUNICODE -D_UNICODE)
+
+# Compilation settings that should be applied to most targets.
+#
+# Be cautious about adding new options here, as plugins use this function by
+# default. In most cases, you should add new options to specific targets instead
+# of modifying this function.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_17)
+  target_compile_options(${TARGET} PRIVATE /W4 /WX /wd"4100")
+  target_compile_options(${TARGET} PRIVATE /EHsc)
+  target_compile_definitions(${TARGET} PRIVATE "_HAS_EXCEPTIONS=0")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<CONFIG:Debug>:_DEBUG>")
+endfunction()
+
+# Flutter library and tool build rules.
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# Application build; see runner/CMakeLists.txt.
+add_subdirectory("runner")
+
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# Support files are copied into place next to the executable, so that it can
+# run in place. This is done instead of making a separate bundle (as on Linux)
+# so that building and running from within Visual Studio will work.
+set(BUILD_BUNDLE_DIR "$<TARGET_FILE_DIR:${BINARY_NAME}>")
+# Make the "install" step default, as it's required to run.
+set(CMAKE_VS_INCLUDE_INSTALL_TO_DEFAULT_BUILD 1)
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+if(PLUGIN_BUNDLED_LIBRARIES)
+  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  CONFIGURATIONS Profile;Release
+  COMPONENT Runtime)

windows/flutter/CMakeLists.txt

@@ -0,0 +1,104 @@
+# This file controls Flutter-level build steps. It should not be edited.
+cmake_minimum_required(VERSION 3.14)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+set(WRAPPER_ROOT "${EPHEMERAL_DIR}/cpp_client_wrapper")
+
+# === Flutter Library ===
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/flutter_windows.dll")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/windows/app.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "flutter_export.h"
+  "flutter_windows.h"
+  "flutter_messenger.h"
+  "flutter_plugin_registrar.h"
+  "flutter_texture_registrar.h"
+)
+list(TRANSFORM FLUTTER_LIBRARY_HEADERS PREPEND "${EPHEMERAL_DIR}/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}.lib")
+add_dependencies(flutter flutter_assemble)
+
+# === Wrapper ===
+list(APPEND CPP_WRAPPER_SOURCES_CORE
+  "core_implementations.cc"
+  "standard_codec.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_CORE PREPEND "${WRAPPER_ROOT}/")
+list(APPEND CPP_WRAPPER_SOURCES_PLUGIN
+  "plugin_registrar.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_PLUGIN PREPEND "${WRAPPER_ROOT}/")
+list(APPEND CPP_WRAPPER_SOURCES_APP
+  "flutter_engine.cc"
+  "flutter_view_controller.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_APP PREPEND "${WRAPPER_ROOT}/")
+
+# Wrapper sources needed for a plugin.
+add_library(flutter_wrapper_plugin STATIC
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_PLUGIN}
+)
+apply_standard_settings(flutter_wrapper_plugin)
+set_target_properties(flutter_wrapper_plugin PROPERTIES
+  POSITION_INDEPENDENT_CODE ON)
+set_target_properties(flutter_wrapper_plugin PROPERTIES
+  CXX_VISIBILITY_PRESET hidden)
+target_link_libraries(flutter_wrapper_plugin PUBLIC flutter)
+target_include_directories(flutter_wrapper_plugin PUBLIC
+  "${WRAPPER_ROOT}/include"
+)
+add_dependencies(flutter_wrapper_plugin flutter_assemble)
+
+# Wrapper sources needed for the runner.
+add_library(flutter_wrapper_app STATIC
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_APP}
+)
+apply_standard_settings(flutter_wrapper_app)
+target_link_libraries(flutter_wrapper_app PUBLIC flutter)
+target_include_directories(flutter_wrapper_app PUBLIC
+  "${WRAPPER_ROOT}/include"
+)
+add_dependencies(flutter_wrapper_app flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+set(PHONY_OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/_phony_")
+set_source_files_properties("${PHONY_OUTPUT}" PROPERTIES SYMBOLIC TRUE)
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CPP_WRAPPER_SOURCES_CORE} ${CPP_WRAPPER_SOURCES_PLUGIN}
+    ${CPP_WRAPPER_SOURCES_APP}
+    ${PHONY_OUTPUT}
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.bat"
+      windows-x64 $<CONFIG>
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_PLUGIN}
+  ${CPP_WRAPPER_SOURCES_APP}
+)

windows/flutter/generated_plugin_registrant.cc

@@ -0,0 +1,29 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+#include <connectivity_plus_windows/connectivity_plus_windows_plugin.h>
+#include <flutter_secure_storage_windows/flutter_secure_storage_windows_plugin.h>
+#include <local_auth_windows/local_auth_plugin.h>
+#include <permission_handler_windows/permission_handler_windows_plugin.h>
+#include <platform_device_id_windows/platform_device_id_windows_plugin.h>
+#include <url_launcher_windows/url_launcher_windows.h>
+
+void RegisterPlugins(flutter::PluginRegistry* registry) {
+  ConnectivityPlusWindowsPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("ConnectivityPlusWindowsPlugin"));
+  FlutterSecureStorageWindowsPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("FlutterSecureStorageWindowsPlugin"));
+  LocalAuthPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("LocalAuthPlugin"));
+  PermissionHandlerWindowsPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("PermissionHandlerWindowsPlugin"));
+  PlatformDeviceIdWindowsPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("PlatformDeviceIdWindowsPlugin"));
+  UrlLauncherWindowsRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("UrlLauncherWindows"));
+}

windows/flutter/generated_plugin_registrant.h

@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter/plugin_registry.h>
+
+// Registers Flutter plugins.
+void RegisterPlugins(flutter::PluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_

windows/flutter/generated_plugins.cmake

@@ -0,0 +1,29 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+  connectivity_plus_windows
+  flutter_secure_storage_windows
+  local_auth_windows
+  permission_handler_windows
+  platform_device_id_windows
+  url_launcher_windows
+)
+
+list(APPEND FLUTTER_FFI_PLUGIN_LIST
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/windows plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
+
+foreach(ffi_plugin ${FLUTTER_FFI_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${ffi_plugin}/windows plugins/${ffi_plugin})
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${ffi_plugin}_bundled_libraries})
+endforeach(ffi_plugin)

windows/runner/CMakeLists.txt

@@ -0,0 +1,40 @@
+cmake_minimum_required(VERSION 3.14)
+project(runner LANGUAGES CXX)
+
+# Define the application target. To change its name, change BINARY_NAME in the
+# top-level CMakeLists.txt, not the value here, or `flutter run` will no longer
+# work.
+#
+# Any new source files that you add to the application should be added here.
+add_executable(${BINARY_NAME} WIN32
+  "flutter_window.cpp"
+  "main.cpp"
+  "utils.cpp"
+  "win32_window.cpp"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+  "Runner.rc"
+  "runner.exe.manifest"
+)
+
+# Apply the standard set of build settings. This can be removed for applications
+# that need different build settings.
+apply_standard_settings(${BINARY_NAME})
+
+# Add preprocessor definitions for the build version.
+target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION=\"${FLUTTER_VERSION}\"")
+target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_MAJOR=${FLUTTER_VERSION_MAJOR}")
+target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_MINOR=${FLUTTER_VERSION_MINOR}")
+target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_PATCH=${FLUTTER_VERSION_PATCH}")
+target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_BUILD=${FLUTTER_VERSION_BUILD}")
+
+# Disable Windows macros that collide with C++ standard library functions.
+target_compile_definitions(${BINARY_NAME} PRIVATE "NOMINMAX")
+
+# Add dependency libraries and include directories. Add any application-specific
+# dependencies here.
+target_link_libraries(${BINARY_NAME} PRIVATE flutter flutter_wrapper_app)
+target_link_libraries(${BINARY_NAME} PRIVATE "dwmapi.lib")
+target_include_directories(${BINARY_NAME} PRIVATE "${CMAKE_SOURCE_DIR}")
+
+# Run the Flutter tool portions of the build. This must not be removed.
+add_dependencies(${BINARY_NAME} flutter_assemble)

windows/runner/Runner.rc

@@ -0,0 +1,121 @@
+// Microsoft Visual C++ generated resource script.
+//
+#pragma code_page(65001)
+#include "resource.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "winres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// English (United States) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE
+BEGIN
+    "resource.h\0"
+END
+
+2 TEXTINCLUDE
+BEGIN
+    "#include ""winres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Icon
+//
+
+// Icon with lowest ID value placed first to ensure application icon
+// remains consistent on all systems.
+IDI_APP_ICON            ICON                    "resources\\app_icon.ico"
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Version
+//
+
+#if defined(FLUTTER_VERSION_MAJOR) && defined(FLUTTER_VERSION_MINOR) && defined(FLUTTER_VERSION_PATCH) && defined(FLUTTER_VERSION_BUILD)
+#define VERSION_AS_NUMBER FLUTTER_VERSION_MAJOR,FLUTTER_VERSION_MINOR,FLUTTER_VERSION_PATCH,FLUTTER_VERSION_BUILD
+#else
+#define VERSION_AS_NUMBER 1,0,0,0
+#endif
+
+#if defined(FLUTTER_VERSION)
+#define VERSION_AS_STRING FLUTTER_VERSION
+#else
+#define VERSION_AS_STRING "1.0.0"
+#endif
+
+VS_VERSION_INFO VERSIONINFO
+ FILEVERSION VERSION_AS_NUMBER
+ PRODUCTVERSION VERSION_AS_NUMBER
+ FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
+#ifdef _DEBUG
+ FILEFLAGS VS_FF_DEBUG
+#else
+ FILEFLAGS 0x0L
+#endif
+ FILEOS VOS__WINDOWS32
+ FILETYPE VFT_APP
+ FILESUBTYPE 0x0L
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904e4"
+        BEGIN
+            VALUE "CompanyName", "com.cakewallet.cake_wallet" "\0"
+            VALUE "FileDescription", "Cake Wallet" "\0"
+            VALUE "FileVersion", VERSION_AS_STRING "\0"
+            VALUE "InternalName", "Cake Wallet" "\0"
+            VALUE "LegalCopyright", "Copyright (C) 2023 Cake Wallet. All rights reserved." "\0"
+            VALUE "OriginalFilename", "Cake Wallet.exe" "\0"
+            VALUE "ProductName", "Cake Wallet" "\0"
+            VALUE "ProductVersion",  VERSION_AS_STRING "\0"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1252
+    END
+END
+
+#endif    // English (United States) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED

windows/runner/flutter_window.cpp

@@ -0,0 +1,71 @@
+#include "flutter_window.h"
+
+#include <optional>
+
+#include "flutter/generated_plugin_registrant.h"
+
+FlutterWindow::FlutterWindow(const flutter::DartProject& project)
+    : project_(project) {}
+
+FlutterWindow::~FlutterWindow() {}
+
+bool FlutterWindow::OnCreate() {
+  if (!Win32Window::OnCreate()) {
+    return false;
+  }
+
+  RECT frame = GetClientArea();
+
+  // The size here must match the window dimensions to avoid unnecessary surface
+  // creation / destruction in the startup path.
+  flutter_controller_ = std::make_unique<flutter::FlutterViewController>(
+      frame.right - frame.left, frame.bottom - frame.top, project_);
+  // Ensure that basic setup of the controller was successful.
+  if (!flutter_controller_->engine() || !flutter_controller_->view()) {
+    return false;
+  }
+  RegisterPlugins(flutter_controller_->engine());
+  SetChildContent(flutter_controller_->view()->GetNativeWindow());
+
+  flutter_controller_->engine()->SetNextFrameCallback([&]() {
+    this->Show();
+  });
+
+  // Flutter can complete the first frame before the "show window" callback is
+  // registered. The following call ensures a frame is pending to ensure the
+  // window is shown. It is a no-op if the first frame hasn't completed yet.
+  flutter_controller_->ForceRedraw();
+
+  return true;
+}
+
+void FlutterWindow::OnDestroy() {
+  if (flutter_controller_) {
+    flutter_controller_ = nullptr;
+  }
+
+  Win32Window::OnDestroy();
+}
+
+LRESULT
+FlutterWindow::MessageHandler(HWND hwnd, UINT const message,
+                              WPARAM const wparam,
+                              LPARAM const lparam) noexcept {
+  // Give Flutter, including plugins, an opportunity to handle window messages.
+  if (flutter_controller_) {
+    std::optional<LRESULT> result =
+        flutter_controller_->HandleTopLevelWindowProc(hwnd, message, wparam,
+                                                      lparam);
+    if (result) {
+      return *result;
+    }
+  }
+
+  switch (message) {
+    case WM_FONTCHANGE:
+      flutter_controller_->engine()->ReloadSystemFonts();
+      break;
+  }
+
+  return Win32Window::MessageHandler(hwnd, message, wparam, lparam);
+}

windows/runner/flutter_window.h

@@ -0,0 +1,33 @@
+#ifndef RUNNER_FLUTTER_WINDOW_H_
+#define RUNNER_FLUTTER_WINDOW_H_
+
+#include <flutter/dart_project.h>
+#include <flutter/flutter_view_controller.h>
+
+#include <memory>
+
+#include "win32_window.h"
+
+// A window that does nothing but host a Flutter view.
+class FlutterWindow : public Win32Window {
+ public:
+  // Creates a new FlutterWindow hosting a Flutter view running |project|.
+  explicit FlutterWindow(const flutter::DartProject& project);
+  virtual ~FlutterWindow();
+
+ protected:
+  // Win32Window:
+  bool OnCreate() override;
+  void OnDestroy() override;
+  LRESULT MessageHandler(HWND window, UINT const message, WPARAM const wparam,
+                         LPARAM const lparam) noexcept override;
+
+ private:
+  // The project to run.
+  flutter::DartProject project_;
+
+  // The Flutter instance hosted by this window.
+  std::unique_ptr<flutter::FlutterViewController> flutter_controller_;
+};
+
+#endif  // RUNNER_FLUTTER_WINDOW_H_

windows/runner/main.cpp

@@ -0,0 +1,43 @@
+#include <flutter/dart_project.h>
+#include <flutter/flutter_view_controller.h>
+#include <windows.h>
+
+#include "flutter_window.h"
+#include "utils.h"
+
+int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
+                      _In_ wchar_t *command_line, _In_ int show_command) {
+  // Attach to console when present (e.g., 'flutter run') or create a
+  // new console when running with a debugger.
+  if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent()) {
+    CreateAndAttachConsole();
+  }
+
+  // Initialize COM, so that it is available for use in the library and/or
+  // plugins.
+  ::CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
+
+  flutter::DartProject project(L"data");
+
+  std::vector<std::string> command_line_arguments =
+      GetCommandLineArguments();
+
+  project.set_dart_entrypoint_arguments(std::move(command_line_arguments));
+
+  FlutterWindow window(project);
+  Win32Window::Point origin(10, 10);
+  Win32Window::Size size(1280, 720);
+  if (!window.Create(L"Cake Wallet", origin, size)) {
+    return EXIT_FAILURE;
+  }
+  window.SetQuitOnClose(true);
+
+  ::MSG msg;
+  while (::GetMessage(&msg, nullptr, 0, 0)) {
+    ::TranslateMessage(&msg);
+    ::DispatchMessage(&msg);
+  }
+
+  ::CoUninitialize();
+  return EXIT_SUCCESS;
+}

windows/runner/resource.h

@@ -0,0 +1,16 @@
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by Runner.rc
+//
+#define IDI_APP_ICON                    101
+
+// Next default values for new objects
+//
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE        102
+#define _APS_NEXT_COMMAND_VALUE         40001
+#define _APS_NEXT_CONTROL_VALUE         1001
+#define _APS_NEXT_SYMED_VALUE           101
+#endif
+#endif

windows/runner/runner.exe.manifest

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <application xmlns="urn:schemas-microsoft-com:asm.v3">
+    <windowsSettings>
+      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
+    </windowsSettings>
+  </application>
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- Windows 10 and Windows 11 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
+      <!-- Windows 8.1 -->
+      <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
+      <!-- Windows 8 -->
+      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+      <!-- Windows 7 -->
+      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+    </application>
+  </compatibility>
+</assembly>

windows/runner/utils.cpp

@@ -0,0 +1,65 @@
+#include "utils.h"
+
+#include <flutter_windows.h>
+#include <io.h>
+#include <stdio.h>
+#include <windows.h>
+
+#include <iostream>
+
+void CreateAndAttachConsole() {
+  if (::AllocConsole()) {
+    FILE *unused;
+    if (freopen_s(&unused, "CONOUT$", "w", stdout)) {
+      _dup2(_fileno(stdout), 1);
+    }
+    if (freopen_s(&unused, "CONOUT$", "w", stderr)) {
+      _dup2(_fileno(stdout), 2);
+    }
+    std::ios::sync_with_stdio();
+    FlutterDesktopResyncOutputStreams();
+  }
+}
+
+std::vector<std::string> GetCommandLineArguments() {
+  // Convert the UTF-16 command line arguments to UTF-8 for the Engine to use.
+  int argc;
+  wchar_t** argv = ::CommandLineToArgvW(::GetCommandLineW(), &argc);
+  if (argv == nullptr) {
+    return std::vector<std::string>();
+  }
+
+  std::vector<std::string> command_line_arguments;
+
+  // Skip the first argument as it's the binary name.
+  for (int i = 1; i < argc; i++) {
+    command_line_arguments.push_back(Utf8FromUtf16(argv[i]));
+  }
+
+  ::LocalFree(argv);
+
+  return command_line_arguments;
+}
+
+std::string Utf8FromUtf16(const wchar_t* utf16_string) {
+  if (utf16_string == nullptr) {
+    return std::string();
+  }
+  int target_length = ::WideCharToMultiByte(
+      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
+      -1, nullptr, 0, nullptr, nullptr)
+    -1; // remove the trailing null character
+  int input_length = (int)wcslen(utf16_string);
+  std::string utf8_string;
+  if (target_length <= 0 || target_length > utf8_string.max_size()) {
+    return utf8_string;
+  }
+  utf8_string.resize(target_length);
+  int converted_length = ::WideCharToMultiByte(
+      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
+      input_length, utf8_string.data(), target_length, nullptr, nullptr);
+  if (converted_length == 0) {
+    return std::string();
+  }
+  return utf8_string;
+}

windows/runner/utils.h

@@ -0,0 +1,19 @@
+#ifndef RUNNER_UTILS_H_
+#define RUNNER_UTILS_H_
+
+#include <string>
+#include <vector>
+
+// Creates a console for the process, and redirects stdout and stderr to
+// it for both the runner and the Flutter library.
+void CreateAndAttachConsole();
+
+// Takes a null-terminated wchar_t* encoded in UTF-16 and returns a std::string
+// encoded in UTF-8. Returns an empty std::string on failure.
+std::string Utf8FromUtf16(const wchar_t* utf16_string);
+
+// Gets the command line arguments passed in as a std::vector<std::string>,
+// encoded in UTF-8. Returns an empty std::vector<std::string> on failure.
+std::vector<std::string> GetCommandLineArguments();
+
+#endif  // RUNNER_UTILS_H_

windows/runner/win32_window.cpp

@@ -0,0 +1,288 @@
+#include "win32_window.h"
+
+#include <dwmapi.h>
+#include <flutter_windows.h>
+
+#include "resource.h"
+
+namespace {
+
+/// Window attribute that enables dark mode window decorations.
+///
+/// Redefined in case the developer's machine has a Windows SDK older than
+/// version 10.0.22000.0.
+/// See: https://docs.microsoft.com/windows/win32/api/dwmapi/ne-dwmapi-dwmwindowattribute
+#ifndef DWMWA_USE_IMMERSIVE_DARK_MODE
+#define DWMWA_USE_IMMERSIVE_DARK_MODE 20
+#endif
+
+constexpr const wchar_t kWindowClassName[] = L"FLUTTER_RUNNER_WIN32_WINDOW";
+
+/// Registry key for app theme preference.
+///
+/// A value of 0 indicates apps should use dark mode. A non-zero or missing
+/// value indicates apps should use light mode.
+constexpr const wchar_t kGetPreferredBrightnessRegKey[] =
+  L"Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize";
+constexpr const wchar_t kGetPreferredBrightnessRegValue[] = L"AppsUseLightTheme";
+
+// The number of Win32Window objects that currently exist.
+static int g_active_window_count = 0;
+
+using EnableNonClientDpiScaling = BOOL __stdcall(HWND hwnd);
+
+// Scale helper to convert logical scaler values to physical using passed in
+// scale factor
+int Scale(int source, double scale_factor) {
+  return static_cast<int>(source * scale_factor);
+}
+
+// Dynamically loads the |EnableNonClientDpiScaling| from the User32 module.
+// This API is only needed for PerMonitor V1 awareness mode.
+void EnableFullDpiSupportIfAvailable(HWND hwnd) {
+  HMODULE user32_module = LoadLibraryA("User32.dll");
+  if (!user32_module) {
+    return;
+  }
+  auto enable_non_client_dpi_scaling =
+      reinterpret_cast<EnableNonClientDpiScaling*>(
+          GetProcAddress(user32_module, "EnableNonClientDpiScaling"));
+  if (enable_non_client_dpi_scaling != nullptr) {
+    enable_non_client_dpi_scaling(hwnd);
+  }
+  FreeLibrary(user32_module);
+}
+
+}  // namespace
+
+// Manages the Win32Window's window class registration.
+class WindowClassRegistrar {
+ public:
+  ~WindowClassRegistrar() = default;
+
+  // Returns the singleton registrar instance.
+  static WindowClassRegistrar* GetInstance() {
+    if (!instance_) {
+      instance_ = new WindowClassRegistrar();
+    }
+    return instance_;
+  }
+
+  // Returns the name of the window class, registering the class if it hasn't
+  // previously been registered.
+  const wchar_t* GetWindowClass();
+
+  // Unregisters the window class. Should only be called if there are no
+  // instances of the window.
+  void UnregisterWindowClass();
+
+ private:
+  WindowClassRegistrar() = default;
+
+  static WindowClassRegistrar* instance_;
+
+  bool class_registered_ = false;
+};
+
+WindowClassRegistrar* WindowClassRegistrar::instance_ = nullptr;
+
+const wchar_t* WindowClassRegistrar::GetWindowClass() {
+  if (!class_registered_) {
+    WNDCLASS window_class{};
+    window_class.hCursor = LoadCursor(nullptr, IDC_ARROW);
+    window_class.lpszClassName = kWindowClassName;
+    window_class.style = CS_HREDRAW | CS_VREDRAW;
+    window_class.cbClsExtra = 0;
+    window_class.cbWndExtra = 0;
+    window_class.hInstance = GetModuleHandle(nullptr);
+    window_class.hIcon =
+        LoadIcon(window_class.hInstance, MAKEINTRESOURCE(IDI_APP_ICON));
+    window_class.hbrBackground = 0;
+    window_class.lpszMenuName = nullptr;
+    window_class.lpfnWndProc = Win32Window::WndProc;
+    RegisterClass(&window_class);
+    class_registered_ = true;
+  }
+  return kWindowClassName;
+}
+
+void WindowClassRegistrar::UnregisterWindowClass() {
+  UnregisterClass(kWindowClassName, nullptr);
+  class_registered_ = false;
+}
+
+Win32Window::Win32Window() {
+  ++g_active_window_count;
+}
+
+Win32Window::~Win32Window() {
+  --g_active_window_count;
+  Destroy();
+}
+
+bool Win32Window::Create(const std::wstring& title,
+                         const Point& origin,
+                         const Size& size) {
+  Destroy();
+
+  const wchar_t* window_class =
+      WindowClassRegistrar::GetInstance()->GetWindowClass();
+
+  const POINT target_point = {static_cast<LONG>(origin.x),
+                              static_cast<LONG>(origin.y)};
+  HMONITOR monitor = MonitorFromPoint(target_point, MONITOR_DEFAULTTONEAREST);
+  UINT dpi = FlutterDesktopGetDpiForMonitor(monitor);
+  double scale_factor = dpi / 96.0;
+
+  HWND window = CreateWindow(
+      window_class, title.c_str(), WS_OVERLAPPEDWINDOW,
+      Scale(origin.x, scale_factor), Scale(origin.y, scale_factor),
+      Scale(size.width, scale_factor), Scale(size.height, scale_factor),
+      nullptr, nullptr, GetModuleHandle(nullptr), this);
+
+  if (!window) {
+    return false;
+  }
+
+  UpdateTheme(window);
+
+  return OnCreate();
+}
+
+bool Win32Window::Show() {
+  return ShowWindow(window_handle_, SW_SHOWNORMAL);
+}
+
+// static
+LRESULT CALLBACK Win32Window::WndProc(HWND const window,
+                                      UINT const message,
+                                      WPARAM const wparam,
+                                      LPARAM const lparam) noexcept {
+  if (message == WM_NCCREATE) {
+    auto window_struct = reinterpret_cast<CREATESTRUCT*>(lparam);
+    SetWindowLongPtr(window, GWLP_USERDATA,
+                     reinterpret_cast<LONG_PTR>(window_struct->lpCreateParams));
+
+    auto that = static_cast<Win32Window*>(window_struct->lpCreateParams);
+    EnableFullDpiSupportIfAvailable(window);
+    that->window_handle_ = window;
+  } else if (Win32Window* that = GetThisFromHandle(window)) {
+    return that->MessageHandler(window, message, wparam, lparam);
+  }
+
+  return DefWindowProc(window, message, wparam, lparam);
+}
+
+LRESULT
+Win32Window::MessageHandler(HWND hwnd,
+                            UINT const message,
+                            WPARAM const wparam,
+                            LPARAM const lparam) noexcept {
+  switch (message) {
+    case WM_DESTROY:
+      window_handle_ = nullptr;
+      Destroy();
+      if (quit_on_close_) {
+        PostQuitMessage(0);
+      }
+      return 0;
+
+    case WM_DPICHANGED: {
+      auto newRectSize = reinterpret_cast<RECT*>(lparam);
+      LONG newWidth = newRectSize->right - newRectSize->left;
+      LONG newHeight = newRectSize->bottom - newRectSize->top;
+
+      SetWindowPos(hwnd, nullptr, newRectSize->left, newRectSize->top, newWidth,
+                   newHeight, SWP_NOZORDER | SWP_NOACTIVATE);
+
+      return 0;
+    }
+    case WM_SIZE: {
+      RECT rect = GetClientArea();
+      if (child_content_ != nullptr) {
+        // Size and position the child window.
+        MoveWindow(child_content_, rect.left, rect.top, rect.right - rect.left,
+                   rect.bottom - rect.top, TRUE);
+      }
+      return 0;
+    }
+
+    case WM_ACTIVATE:
+      if (child_content_ != nullptr) {
+        SetFocus(child_content_);
+      }
+      return 0;
+
+    case WM_DWMCOLORIZATIONCOLORCHANGED:
+      UpdateTheme(hwnd);
+      return 0;
+  }
+
+  return DefWindowProc(window_handle_, message, wparam, lparam);
+}
+
+void Win32Window::Destroy() {
+  OnDestroy();
+
+  if (window_handle_) {
+    DestroyWindow(window_handle_);
+    window_handle_ = nullptr;
+  }
+  if (g_active_window_count == 0) {
+    WindowClassRegistrar::GetInstance()->UnregisterWindowClass();
+  }
+}
+
+Win32Window* Win32Window::GetThisFromHandle(HWND const window) noexcept {
+  return reinterpret_cast<Win32Window*>(
+      GetWindowLongPtr(window, GWLP_USERDATA));
+}
+
+void Win32Window::SetChildContent(HWND content) {
+  child_content_ = content;
+  SetParent(content, window_handle_);
+  RECT frame = GetClientArea();
+
+  MoveWindow(content, frame.left, frame.top, frame.right - frame.left,
+             frame.bottom - frame.top, true);
+
+  SetFocus(child_content_);
+}
+
+RECT Win32Window::GetClientArea() {
+  RECT frame;
+  GetClientRect(window_handle_, &frame);
+  return frame;
+}
+
+HWND Win32Window::GetHandle() {
+  return window_handle_;
+}
+
+void Win32Window::SetQuitOnClose(bool quit_on_close) {
+  quit_on_close_ = quit_on_close;
+}
+
+bool Win32Window::OnCreate() {
+  // No-op; provided for subclasses.
+  return true;
+}
+
+void Win32Window::OnDestroy() {
+  // No-op; provided for subclasses.
+}
+
+void Win32Window::UpdateTheme(HWND const window) {
+  DWORD light_mode;
+  DWORD light_mode_size = sizeof(light_mode);
+  LSTATUS result = RegGetValue(HKEY_CURRENT_USER, kGetPreferredBrightnessRegKey,
+                               kGetPreferredBrightnessRegValue,
+                               RRF_RT_REG_DWORD, nullptr, &light_mode,
+                               &light_mode_size);
+
+  if (result == ERROR_SUCCESS) {
+    BOOL enable_dark_mode = light_mode == 0;
+    DwmSetWindowAttribute(window, DWMWA_USE_IMMERSIVE_DARK_MODE,
+                          &enable_dark_mode, sizeof(enable_dark_mode));
+  }
+}

windows/runner/win32_window.h

@@ -0,0 +1,102 @@
+#ifndef RUNNER_WIN32_WINDOW_H_
+#define RUNNER_WIN32_WINDOW_H_
+
+#include <windows.h>
+
+#include <functional>
+#include <memory>
+#include <string>
+
+// A class abstraction for a high DPI-aware Win32 Window. Intended to be
+// inherited from by classes that wish to specialize with custom
+// rendering and input handling
+class Win32Window {
+ public:
+  struct Point {
+    unsigned int x;
+    unsigned int y;
+    Point(unsigned int x, unsigned int y) : x(x), y(y) {}
+  };
+
+  struct Size {
+    unsigned int width;
+    unsigned int height;
+    Size(unsigned int width, unsigned int height)
+        : width(width), height(height) {}
+  };
+
+  Win32Window();
+  virtual ~Win32Window();
+
+  // Creates a win32 window with |title| that is positioned and sized using
+  // |origin| and |size|. New windows are created on the default monitor. Window
+  // sizes are specified to the OS in physical pixels, hence to ensure a
+  // consistent size this function will scale the inputted width and height as
+  // as appropriate for the default monitor. The window is invisible until
+  // |Show| is called. Returns true if the window was created successfully.
+  bool Create(const std::wstring& title, const Point& origin, const Size& size);
+
+  // Show the current window. Returns true if the window was successfully shown.
+  bool Show();
+
+  // Release OS resources associated with window.
+  void Destroy();
+
+  // Inserts |content| into the window tree.
+  void SetChildContent(HWND content);
+
+  // Returns the backing Window handle to enable clients to set icon and other
+  // window properties. Returns nullptr if the window has been destroyed.
+  HWND GetHandle();
+
+  // If true, closing this window will quit the application.
+  void SetQuitOnClose(bool quit_on_close);
+
+  // Return a RECT representing the bounds of the current client area.
+  RECT GetClientArea();
+
+ protected:
+  // Processes and route salient window messages for mouse handling,
+  // size change and DPI. Delegates handling of these to member overloads that
+  // inheriting classes can handle.
+  virtual LRESULT MessageHandler(HWND window,
+                                 UINT const message,
+                                 WPARAM const wparam,
+                                 LPARAM const lparam) noexcept;
+
+  // Called when CreateAndShow is called, allowing subclass window-related
+  // setup. Subclasses should return false if setup fails.
+  virtual bool OnCreate();
+
+  // Called when Destroy is called.
+  virtual void OnDestroy();
+
+ private:
+  friend class WindowClassRegistrar;
+
+  // OS callback called by message pump. Handles the WM_NCCREATE message which
+  // is passed when the non-client area is being created and enables automatic
+  // non-client DPI scaling so that the non-client area automatically
+  // responds to changes in DPI. All other messages are handled by
+  // MessageHandler.
+  static LRESULT CALLBACK WndProc(HWND const window,
+                                  UINT const message,
+                                  WPARAM const wparam,
+                                  LPARAM const lparam) noexcept;
+
+  // Retrieves a class instance pointer for |window|
+  static Win32Window* GetThisFromHandle(HWND const window) noexcept;
+
+  // Update the window frame's theme to match the system theme.
+  static void UpdateTheme(HWND const window);
+
+  bool quit_on_close_ = false;
+
+  // window handle for top level window.
+  HWND window_handle_ = nullptr;
+
+  // window handle for hosted content.
+  HWND child_content_ = nullptr;
+};
+
+#endif  // RUNNER_WIN32_WINDOW_H_