windows: fixed dealloc webviews logic, implemented takeScreenshot, added WebViewEnvironment and WebViewEnvironmentSettings classes

dev_packages/generators/lib/src/exchangeable_enum_generator.dart

@@ -140,6 +140,7 @@ class ExchangeableEnumGenerator
                   <DartObject>[];
           var hasWebSupport = false;
           var webSupportValue = null;
+          var allPlatformsWithoutValue = true;
           if (platforms.isNotEmpty) {
             for (var platform in platforms) {
               final targetPlatformName =
@@ -150,6 +151,9 @@ class ExchangeableEnumGenerator
                       ? platformValueField.toIntValue() ??
                           "'${platformValueField.toStringValue()}'"
                       : null;
+              if (allPlatformsWithoutValue && platformValue != null) {
+                allPlatformsWithoutValue = false;
+              }
               if (targetPlatformName == "web") {
                 hasWebSupport = true;
                 webSupportValue = platformValue;
@@ -170,8 +174,13 @@ class ExchangeableEnumGenerator
           nativeValueBody += "return $defaultValue;";
           nativeValueBody += "}";
 
+          if (!allPlatformsWithoutValue) {
             classBuffer.writeln(
                 "static final $fieldName = $extClassName._internalMultiPlatform($constantValue, $nativeValueBody);");
+          } else {
+            classBuffer.writeln(
+                "static const $fieldName = $extClassName._internal($constantValue, ${defaultValue ?? constantValue});");
+          }
         } else {
           classBuffer.writeln(
               "static const $fieldName = $extClassName._internal($constantValue, $constantValue);");

flutter_inappwebview/example/lib/in_app_webiew_example.screen.dart

@@ -115,6 +115,7 @@ class _InAppWebViewExampleScreenState extends State<InAppWebViewExampleScreen> {
               children: [
                 InAppWebView(
                   key: webViewKey,
+                  webViewEnvironment: webViewEnvironment,
                   initialUrlRequest:
                       URLRequest(url: WebUri('https://flutter.dev')),
                   // initialUrlRequest:

flutter_inappwebview/example/lib/main.dart

@@ -15,6 +15,7 @@ import 'package:pointer_interceptor/pointer_interceptor.dart';
 // import 'package:permission_handler/permission_handler.dart';
 
 final localhostServer = InAppLocalhostServer(documentRoot: 'assets');
+WebViewEnvironment? webViewEnvironment;
 
 Future main() async {
   WidgetsFlutterBinding.ensureInitialized();
@@ -22,6 +23,13 @@ Future main() async {
   // await Permission.microphone.request();
   // await Permission.storage.request();
 
+  if (!kIsWeb && defaultTargetPlatform == TargetPlatform.windows) {
+    webViewEnvironment = await WebViewEnvironment.create(settings:
+      WebViewEnvironmentSettings(
+          userDataFolder: 'custom_path'
+      ));
+  }
+
   if (!kIsWeb && defaultTargetPlatform == TargetPlatform.android) {
     await InAppWebViewController.setWebContentsDebuggingEnabled(kDebugMode);
   }

flutter_inappwebview/example/macos/Flutter/GeneratedPluginRegistrant.swift

@@ -5,12 +5,10 @@
 import FlutterMacOS
 import Foundation
 
-import flutter_inappwebview_macos
 import path_provider_foundation
 import url_launcher_macos
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
-  InAppWebViewFlutterPlugin.register(with: registry.registrar(forPlugin: "InAppWebViewFlutterPlugin"))
   PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
   UrlLauncherPlugin.register(with: registry.registrar(forPlugin: "UrlLauncherPlugin"))
 }

flutter_inappwebview/example/pubspec.yaml

@@ -35,14 +35,14 @@ dependencies:
 dependency_overrides:
   flutter_inappwebview_platform_interface:
     path: ../../flutter_inappwebview_platform_interface
-  flutter_inappwebview_android:
+  #flutter_inappwebview_android:
-    path: ../../flutter_inappwebview_android
+  #  path: ../../flutter_inappwebview_android
-  flutter_inappwebview_ios:
+  #flutter_inappwebview_ios:
-    path: ../../flutter_inappwebview_ios
+  #  path: ../../flutter_inappwebview_ios
-  flutter_inappwebview_macos:
+  #flutter_inappwebview_macos:
-    path: ../../flutter_inappwebview_macos
+  #  path: ../../flutter_inappwebview_macos
-  flutter_inappwebview_web:
+  #flutter_inappwebview_web:
-    path: ../../flutter_inappwebview_web
+  #  path: ../../flutter_inappwebview_web
   flutter_inappwebview_windows:
     path: ../../flutter_inappwebview_windows
 

flutter_inappwebview/lib/src/in_app_webview/in_app_webview.dart

@@ -9,6 +9,7 @@ import 'package:flutter/services.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter_inappwebview_platform_interface/flutter_inappwebview_platform_interface.dart';
+import '../webview_environment/webview_environment.dart';
 import 'headless_in_app_webview.dart';
 import 'in_app_webview_controller.dart';
 import '../find_interaction/find_interaction_controller.dart';
@@ -42,6 +43,7 @@ class InAppWebView extends StatefulWidget {
     InAppWebViewKeepAlive? keepAlive,
     bool? preventGestureDelay,
     TextDirection? layoutDirection,
+    WebViewEnvironment? webViewEnvironment,
     @Deprecated('Use onGeolocationPermissionsHidePrompt instead')
     void Function(InAppWebViewController controller)?
         androidOnGeolocationPermissionsHidePrompt,
@@ -310,6 +312,7 @@ class InAppWebView extends StatefulWidget {
               findInteractionController: findInteractionController?.platform,
               contextMenu: contextMenu,
               layoutDirection: layoutDirection,
+              webViewEnvironment: webViewEnvironment?.platform,
               onWebViewCreated: onWebViewCreated != null
                   ? (controller) => onWebViewCreated.call(controller)
                   : null,

flutter_inappwebview/lib/src/main.dart

@@ -15,3 +15,4 @@ export 'webview_asset_loader.dart';
 export 'tracing_controller.dart';
 export 'process_global_config.dart';
 export 'in_app_localhost_server.dart';
+export 'webview_environment/main.dart';

flutter_inappwebview/lib/src/webview_environment/main.dart

@@ -0,0 +1 @@
+export 'webview_environment.dart';

flutter_inappwebview/lib/src/webview_environment/webview_environment.dart

@@ -0,0 +1,35 @@
+import 'dart:core';
+
+import 'package:flutter_inappwebview_platform_interface/flutter_inappwebview_platform_interface.dart';
+
+///{@macro flutter_inappwebview_platform_interface.PlatformWebViewEnvironment}
+class WebViewEnvironment {
+  /// Constructs a [WebViewEnvironment].
+  ///
+  /// See [WebViewEnvironment.fromPlatformCreationParams] for setting parameters for
+  /// a specific platform.
+  WebViewEnvironment.fromPlatformCreationParams({
+    required PlatformWebViewEnvironmentCreationParams params,
+  }) : this.fromPlatform(platform: PlatformWebViewEnvironment(params));
+
+  /// Constructs a [WebViewEnvironment] from a specific platform implementation.
+  WebViewEnvironment.fromPlatform({required this.platform});
+
+  /// Implementation of [PlatformWebViewEnvironment] for the current platform.
+  final PlatformWebViewEnvironment platform;
+
+  ///{@macro flutter_inappwebview_platform_interface.PlatformWebViewEnvironment.id}
+  String get id => platform.id;
+
+  ///{@macro flutter_inappwebview_platform_interface.PlatformWebViewEnvironment.settings}
+  WebViewEnvironmentSettings? get settings => platform.settings;
+
+  ///{@macro flutter_inappwebview_platform_interface.PlatformWebViewEnvironment.create}
+  static Future<WebViewEnvironment> create(
+      {WebViewEnvironmentSettings? settings}) async {
+    return WebViewEnvironment.fromPlatform(platform: await PlatformWebViewEnvironment.static().create(settings: settings));
+  }
+
+  ///{@macro flutter_inappwebview_platform_interface.PlatformWebViewEnvironment.dispose}
+  Future<void> dispose() => platform.dispose();
+}

flutter_inappwebview/pubspec.yaml

@@ -18,11 +18,12 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  flutter_inappwebview_platform_interface: ^1.0.10
+  flutter_inappwebview_platform_interface: #^1.0.10
-  flutter_inappwebview_android: ^1.0.12
+    path: ../flutter_inappwebview_platform_interface
-  flutter_inappwebview_ios: ^1.0.13
+  #flutter_inappwebview_android: ^1.0.12
-  flutter_inappwebview_macos: ^1.0.11
+  #flutter_inappwebview_ios: ^1.0.13
-  flutter_inappwebview_web: ^1.0.8
+  #flutter_inappwebview_macos: ^1.0.11
+  #flutter_inappwebview_web: ^1.0.8
 
 dev_dependencies:
   flutter_test:

flutter_inappwebview_platform_interface/lib/src/in_app_webview/platform_inappwebview_controller.dart

@@ -750,6 +750,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- Android native WebView
   ///- iOS ([Official API - WKWebView.takeSnapshot](https://developer.apple.com/documentation/webkit/wkwebview/2873260-takesnapshot))
   ///- MacOS ([Official API - WKWebView.takeSnapshot](https://developer.apple.com/documentation/webkit/wkwebview/2873260-takesnapshot))
+  ///- Windows
   ///{@endtemplate}
   Future<Uint8List?> takeScreenshot(
       {ScreenshotConfiguration? screenshotConfiguration}) {

flutter_inappwebview_platform_interface/lib/src/in_app_webview/platform_inappwebview_widget.dart

@@ -5,6 +5,7 @@ import 'package:plugin_platform_interface/plugin_platform_interface.dart';
 
 import '../inappwebview_platform.dart';
 import '../types/disposable.dart';
+import '../webview_environment/platform_webview_environment.dart';
 import 'in_app_webview_keep_alive.dart';
 import 'platform_webview.dart';
 import 'platform_headless_in_app_webview.dart';
@@ -24,6 +25,7 @@ class PlatformInAppWebViewWidgetCreationParams
       this.headlessWebView,
       this.keepAlive,
       this.preventGestureDelay,
+      this.webViewEnvironment,
       super.controllerFromPlatform,
       super.windowId,
       super.onWebViewCreated,
@@ -181,6 +183,12 @@ class PlatformInAppWebViewWidgetCreationParams
   ///**Officially Supported Platforms/Implementations**:
   ///- iOS
   final bool? preventGestureDelay;
+
+  ///Used create the [PlatformInAppWebViewWidget] using the specified environment.
+  ///
+  ///**Officially Supported Platforms/Implementations**:
+  ///- Windows
+  final PlatformWebViewEnvironment? webViewEnvironment;
 }
 
 /// Interface for a platform implementation of a web view widget.

flutter_inappwebview_platform_interface/lib/src/inappwebview_platform.dart

@@ -24,6 +24,7 @@ import 'platform_tracing_controller.dart';
 import 'platform_webview_asset_loader.dart';
 import 'platform_webview_feature.dart';
 import 'in_app_localhost_server.dart';
+import 'webview_environment/platform_webview_environment.dart';
 
 /// Interface for a platform implementation of a WebView.
 abstract class InAppWebViewPlatform extends PlatformInterface {
@@ -430,4 +431,24 @@ abstract class InAppWebViewPlatform extends PlatformInterface {
     throw UnimplementedError(
         'createPlatformChromeSafariBrowserStatic is not implemented on the current platform.');
   }
+
+  /// Creates a new [PlatformWebViewEnvironment].
+  ///
+  /// This function should only be called by the app-facing package.
+  /// Look at using [WebViewEnvironment] in `flutter_inappwebview` instead.
+  PlatformWebViewEnvironment createPlatformWebViewEnvironment(
+      PlatformWebViewEnvironmentCreationParams params,
+      ) {
+    throw UnimplementedError(
+        'createPlatformWebViewEnvironment is not implemented on the current platform.');
+  }
+
+  /// Creates a new empty [PlatformWebViewEnvironment] to access static methods.
+  ///
+  /// This function should only be called by the app-facing package.
+  /// Look at using [WebViewEnvironment] in `flutter_inappwebview` instead.
+  PlatformWebViewEnvironment createPlatformWebViewEnvironmentStatic() {
+    throw UnimplementedError(
+        'createPlatformWebViewEnvironmentStatic is not implemented on the current platform.');
+  }
 }

flutter_inappwebview_platform_interface/lib/src/main.dart

@@ -1,5 +1,6 @@
 export 'inappwebview_platform.dart';
 export 'types/main.dart';
+export 'webview_environment/main.dart';
 export 'in_app_webview/main.dart';
 export 'in_app_browser/main.dart';
 export 'chrome_safari_browser/main.dart';

flutter_inappwebview_platform_interface/lib/src/types/compress_format.dart

@@ -11,36 +11,48 @@ class CompressFormat_ {
 
   ///Compress to the `PNG` format.
   ///PNG is lossless, so `quality` is ignored.
+  @EnumSupportedPlatforms(platforms: [
+    EnumAndroidPlatform(),
+    EnumIOSPlatform(),
+    EnumMacOSPlatform(),
+    EnumWindowsPlatform(),
+  ])
   static const PNG = const CompressFormat_._internal("PNG");
 
   ///Compress to the `JPEG` format.
   ///Quality of `0` means compress for the smallest size.
   ///`100` means compress for max visual quality.
+  @EnumSupportedPlatforms(platforms: [
+    EnumAndroidPlatform(),
+    EnumIOSPlatform(),
+    EnumMacOSPlatform(),
+    EnumWindowsPlatform(),
+  ])
   static const JPEG = const CompressFormat_._internal("JPEG");
 
   ///Compress to the `WEBP` lossy format.
   ///Quality of `0` means compress for the smallest size.
   ///`100` means compress for max visual quality.
-  ///
+  @EnumSupportedPlatforms(platforms: [
-  ///**NOTE**: available only on Android.
+    EnumAndroidPlatform(),
+    EnumWindowsPlatform(),
+  ])
   static const WEBP = const CompressFormat_._internal("WEBP");
 
   ///Compress to the `WEBP` lossy format.
   ///Quality of `0` means compress for the smallest size.
   ///`100` means compress for max visual quality.
-  ///
+  @EnumSupportedPlatforms(platforms: [
-  ///**NOTE**: available only on Android.
+    EnumAndroidPlatform(available: '30'),
-  ///
+  ])
-  ///**NOTE for Android**: available on Android 30+.
   static const WEBP_LOSSY = const CompressFormat_._internal("WEBP_LOSSY");
 
   ///Compress to the `WEBP` lossless format.
   ///Quality refers to how much effort to put into compression.
   ///A value of `0` means to compress quickly, resulting in a relatively large file size.
   ///`100` means to spend more time compressing, resulting in a smaller file.
-  ///
+  @EnumSupportedPlatforms(platforms: [
-  ///**NOTE**: available only on Android.
+    EnumAndroidPlatform(available: '30'),
-  ///
+  ])
-  ///**NOTE for Android**: available on Android 30+.
   static const WEBP_LOSSLESS = const CompressFormat_._internal("WEBP_LOSSLESS");
 }

flutter_inappwebview_platform_interface/lib/src/types/compress_format.g.dart

@@ -19,17 +19,31 @@ class CompressFormat {
   ///Compress to the `JPEG` format.
   ///Quality of `0` means compress for the smallest size.
   ///`100` means compress for max visual quality.
+  ///
+  ///**Officially Supported Platforms/Implementations**:
+  ///- Android native WebView
+  ///- iOS
+  ///- MacOS
+  ///- Windows
   static const JPEG = CompressFormat._internal('JPEG', 'JPEG');
 
   ///Compress to the `PNG` format.
   ///PNG is lossless, so `quality` is ignored.
+  ///
+  ///**Officially Supported Platforms/Implementations**:
+  ///- Android native WebView
+  ///- iOS
+  ///- MacOS
+  ///- Windows
   static const PNG = CompressFormat._internal('PNG', 'PNG');
 
   ///Compress to the `WEBP` lossy format.
   ///Quality of `0` means compress for the smallest size.
   ///`100` means compress for max visual quality.
   ///
-  ///**NOTE**: available only on Android.
+  ///**Officially Supported Platforms/Implementations**:
+  ///- Android native WebView
+  ///- Windows
   static const WEBP = CompressFormat._internal('WEBP', 'WEBP');
 
   ///Compress to the `WEBP` lossless format.
@@ -37,9 +51,8 @@ class CompressFormat {
   ///A value of `0` means to compress quickly, resulting in a relatively large file size.
   ///`100` means to spend more time compressing, resulting in a smaller file.
   ///
-  ///**NOTE**: available only on Android.
+  ///**Officially Supported Platforms/Implementations**:
-  ///
+  ///- Android native WebView 30+
-  ///**NOTE for Android**: available on Android 30+.
   static const WEBP_LOSSLESS =
       CompressFormat._internal('WEBP_LOSSLESS', 'WEBP_LOSSLESS');
 
@@ -47,9 +60,8 @@ class CompressFormat {
   ///Quality of `0` means compress for the smallest size.
   ///`100` means compress for max visual quality.
   ///
-  ///**NOTE**: available only on Android.
+  ///**Officially Supported Platforms/Implementations**:
-  ///
+  ///- Android native WebView 30+
-  ///**NOTE for Android**: available on Android 30+.
   static const WEBP_LOSSY =
       CompressFormat._internal('WEBP_LOSSY', 'WEBP_LOSSY');
 

flutter_inappwebview_platform_interface/lib/src/types/screenshot_configuration.dart

@@ -12,6 +12,12 @@ class ScreenshotConfiguration_ {
   ///The portion of your web view to capture, specified as a rectangle in the view’s coordinate system.
   ///The default value of this property is `null`, which captures everything in the view’s bounds rectangle.
   ///If you specify a custom rectangle, it must lie within the bounds rectangle of the `WebView` object.
+  @SupportedPlatforms(platforms: [
+    AndroidPlatform(),
+    IOSPlatform(),
+    MacOSPlatform(),
+    WindowsPlatform()
+  ])
   InAppWebViewRect_? rect;
 
   ///The width of the captured image, in points.
@@ -19,14 +25,31 @@ class ScreenshotConfiguration_ {
   ///The web view maintains the aspect ratio of the captured content, but scales it to match the width you specify.
   ///
   ///The default value of this property is `null`, which returns an image whose size matches the original size of the captured rectangle.
+  @SupportedPlatforms(platforms: [
+    AndroidPlatform(),
+    IOSPlatform(),
+    MacOSPlatform()
+  ])
   double? snapshotWidth;
 
   ///The compression format of the captured image.
   ///The default value is [CompressFormat.PNG].
+  @SupportedPlatforms(platforms: [
+    AndroidPlatform(),
+    IOSPlatform(),
+    MacOSPlatform(),
+    WindowsPlatform()
+  ])
   CompressFormat_ compressFormat;
 
   ///Hint to the compressor, `0-100`. The value is interpreted differently depending on the [CompressFormat].
   ///[CompressFormat.PNG] is lossless, so this value is ignored.
+  @SupportedPlatforms(platforms: [
+    AndroidPlatform(),
+    IOSPlatform(),
+    MacOSPlatform(),
+    WindowsPlatform()
+  ])
   int quality;
 
   ///Use [afterScreenUpdates] instead.
@@ -36,10 +59,10 @@ class ScreenshotConfiguration_ {
   ///A Boolean value that indicates whether to take the snapshot after incorporating any pending screen updates.
   ///The default value of this property is `true`, which causes the web view to incorporate any recent changes to the view’s content and then generate the snapshot.
   ///If you change the value to `false`, the `WebView` takes the snapshot immediately, and before incorporating any new changes.
-  ///
+  @SupportedPlatforms(platforms: [
-  ///**NOTE**: available only on iOS.
+    IOSPlatform(available: '13.0'),
-  ///
+    MacOSPlatform(available: '10.15'),
-  ///**NOTE for iOS**: Available from iOS 13.0+.
+  ])
   bool afterScreenUpdates;
 
   @ExchangeableObjectConstructor()

flutter_inappwebview_platform_interface/lib/src/types/screenshot_configuration.g.dart

@@ -12,13 +12,19 @@ class ScreenshotConfiguration {
   ///The default value of this property is `true`, which causes the web view to incorporate any recent changes to the view’s content and then generate the snapshot.
   ///If you change the value to `false`, the `WebView` takes the snapshot immediately, and before incorporating any new changes.
   ///
-  ///**NOTE**: available only on iOS.
+  ///**Officially Supported Platforms/Implementations**:
-  ///
+  ///- iOS 13.0+
-  ///**NOTE for iOS**: Available from iOS 13.0+.
+  ///- MacOS 10.15+
   bool afterScreenUpdates;
 
   ///The compression format of the captured image.
   ///The default value is [CompressFormat.PNG].
+  ///
+  ///**Officially Supported Platforms/Implementations**:
+  ///- Android native WebView
+  ///- iOS
+  ///- MacOS
+  ///- Windows
   CompressFormat compressFormat;
 
   ///Use [afterScreenUpdates] instead.
@@ -27,11 +33,23 @@ class ScreenshotConfiguration {
 
   ///Hint to the compressor, `0-100`. The value is interpreted differently depending on the [CompressFormat].
   ///[CompressFormat.PNG] is lossless, so this value is ignored.
+  ///
+  ///**Officially Supported Platforms/Implementations**:
+  ///- Android native WebView
+  ///- iOS
+  ///- MacOS
+  ///- Windows
   int quality;
 
   ///The portion of your web view to capture, specified as a rectangle in the view’s coordinate system.
   ///The default value of this property is `null`, which captures everything in the view’s bounds rectangle.
   ///If you specify a custom rectangle, it must lie within the bounds rectangle of the `WebView` object.
+  ///
+  ///**Officially Supported Platforms/Implementations**:
+  ///- Android native WebView
+  ///- iOS
+  ///- MacOS
+  ///- Windows
   InAppWebViewRect? rect;
 
   ///The width of the captured image, in points.
@@ -39,6 +57,11 @@ class ScreenshotConfiguration {
   ///The web view maintains the aspect ratio of the captured content, but scales it to match the width you specify.
   ///
   ///The default value of this property is `null`, which returns an image whose size matches the original size of the captured rectangle.
+  ///
+  ///**Officially Supported Platforms/Implementations**:
+  ///- Android native WebView
+  ///- iOS
+  ///- MacOS
   double? snapshotWidth;
   ScreenshotConfiguration(
       {this.rect,

flutter_inappwebview_platform_interface/lib/src/webview_environment/main.dart

@@ -0,0 +1,2 @@
+export 'platform_webview_environment.dart';
+export 'webview_environment_settings.dart' show WebViewEnvironmentSettings;

flutter_inappwebview_platform_interface/lib/src/webview_environment/platform_webview_environment.dart

@@ -0,0 +1,106 @@
+import 'package:flutter/foundation.dart';
+import 'package:plugin_platform_interface/plugin_platform_interface.dart';
+
+import '../debug_logging_settings.dart';
+import '../inappwebview_platform.dart';
+import '../types/disposable.dart';
+import 'webview_environment_settings.dart';
+
+/// Object specifying creation parameters for creating a [PlatformWebViewEnvironment].
+///
+/// Platform specific implementations can add additional fields by extending
+/// this class.
+@immutable
+class PlatformWebViewEnvironmentCreationParams {
+  /// Used by the platform implementation to create a new [PlatformWebViewEnvironment].
+  const PlatformWebViewEnvironmentCreationParams({this.settings});
+
+  ///{@macro flutter_inappwebview_platform_interface.PlatformWebViewEnvironment.settings}
+  final WebViewEnvironmentSettings? settings;
+}
+
+///Controls a WebView Environment used by WebView instances.
+///
+///**Officially Supported Platforms/Implementations**:
+///- Windows
+abstract class PlatformWebViewEnvironment extends PlatformInterface
+    implements Disposable {
+  ///Debug settings used by [PlatformWebViewEnvironment].
+  static DebugLoggingSettings debugLoggingSettings = DebugLoggingSettings(
+      maxLogMessageLength: 1000
+  );
+
+  /// Creates a new [PlatformInAppWebViewController]
+  factory PlatformWebViewEnvironment(
+      PlatformWebViewEnvironmentCreationParams params) {
+    assert(
+    InAppWebViewPlatform.instance != null,
+    'A platform implementation for `flutter_inappwebview` has not been set. Please '
+        'ensure that an implementation of `InAppWebViewPlatform` has been set to '
+        '`InAppWebViewPlatform.instance` before use. For unit testing, '
+        '`InAppWebViewPlatform.instance` can be set with your own test implementation.',
+    );
+    final PlatformWebViewEnvironment webViewEnvironment =
+    InAppWebViewPlatform.instance!
+        .createPlatformWebViewEnvironment(params);
+    PlatformInterface.verify(webViewEnvironment, _token);
+    return webViewEnvironment;
+  }
+
+  /// Creates a new [PlatformWebViewEnvironment] to access static methods.
+  factory PlatformWebViewEnvironment.static() {
+    assert(
+    InAppWebViewPlatform.instance != null,
+    'A platform implementation for `flutter_inappwebview` has not been set. Please '
+        'ensure that an implementation of `InAppWebViewPlatform` has been set to '
+        '`InAppWebViewPlatform.instance` before use. For unit testing, '
+        '`InAppWebViewPlatform.instance` can be set with your own test implementation.',
+    );
+    final PlatformWebViewEnvironment webViewEnvironment =
+    InAppWebViewPlatform.instance!
+        .createPlatformWebViewEnvironmentStatic();
+    PlatformInterface.verify(webViewEnvironment, _token);
+    return webViewEnvironment;
+  }
+
+  /// Used by the platform implementation to create a new [PlatformWebViewEnvironment].
+  ///
+  /// Should only be used by platform implementations because they can't extend
+  /// a class that only contains a factory constructor.
+  @protected
+  PlatformWebViewEnvironment.implementation(this.params)
+      : super(token: _token);
+
+  static final Object _token = Object();
+
+  /// The parameters used to initialize the [PlatformWebViewEnvironment].
+  final PlatformWebViewEnvironmentCreationParams params;
+
+  ///{@template flutter_inappwebview_platform_interface.PlatformWebViewEnvironment.id}
+  /// WebView Environment ID.
+  ///{@endtemplate}
+  String get id =>
+      throw UnimplementedError('id is not implemented on the current platform');
+
+  ///{@template flutter_inappwebview_platform_interface.PlatformWebViewEnvironment.settings}
+  /// WebView Environment settings.
+  ///{@endtemplate}
+  WebViewEnvironmentSettings? get settings => params.settings;
+
+  ///{@template flutter_inappwebview_platform_interface.PlatformWebViewEnvironment.create}
+  ///Initializes the [PlatformWebViewEnvironment] using [settings].
+  ///{@endtemplate}
+  Future<PlatformWebViewEnvironment> create(
+      {WebViewEnvironmentSettings? settings}) {
+    throw UnimplementedError(
+        'create is not implemented on the current platform');
+  }
+
+  ///{@template flutter_inappwebview_platform_interface.PlatformWebViewEnvironment.dispose}
+  ///Disposes the WebView Environment reference.
+  ///{@endtemplate}
+  Future<void> dispose() {
+    throw UnimplementedError(
+        'dispose is not implemented on the current platform');
+  }
+}

flutter_inappwebview_platform_interface/lib/src/webview_environment/webview_environment_settings.dart

@@ -0,0 +1,25 @@
+import 'package:flutter_inappwebview_internal_annotations/flutter_inappwebview_internal_annotations.dart';
+
+import 'platform_webview_environment.dart';
+
+part 'webview_environment_settings.g.dart';
+
+///This class represents all the [PlatformWebViewEnvironment] settings available.
+@ExchangeableObject(copyMethod: true)
+class WebViewEnvironmentSettings_ {
+  final String? browserExecutableFolder;
+  final String? userDataFolder;
+  final String? additionalBrowserArguments;
+  final bool? allowSingleSignOnUsingOSPrimaryAccount;
+  final String? language;
+  final String? targetCompatibleBrowserVersion;
+
+  WebViewEnvironmentSettings_({
+    this.browserExecutableFolder,
+    this.userDataFolder,
+    this.additionalBrowserArguments,
+    this.allowSingleSignOnUsingOSPrimaryAccount,
+    this.language,
+    this.targetCompatibleBrowserVersion
+  });
+}

flutter_inappwebview_platform_interface/lib/src/webview_environment/webview_environment_settings.g.dart

@@ -0,0 +1,70 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'webview_environment_settings.dart';
+
+// **************************************************************************
+// ExchangeableObjectGenerator
+// **************************************************************************
+
+///This class represents all the [PlatformWebViewEnvironment] settings available.
+class WebViewEnvironmentSettings {
+  final String? additionalBrowserArguments;
+  final bool? allowSingleSignOnUsingOSPrimaryAccount;
+  final String? browserExecutableFolder;
+  final String? language;
+  final String? targetCompatibleBrowserVersion;
+  final String? userDataFolder;
+  WebViewEnvironmentSettings(
+      {this.additionalBrowserArguments,
+      this.allowSingleSignOnUsingOSPrimaryAccount,
+      this.browserExecutableFolder,
+      this.language,
+      this.targetCompatibleBrowserVersion,
+      this.userDataFolder});
+
+  ///Gets a possible [WebViewEnvironmentSettings] instance from a [Map] value.
+  static WebViewEnvironmentSettings? fromMap(Map<String, dynamic>? map) {
+    if (map == null) {
+      return null;
+    }
+    final instance = WebViewEnvironmentSettings(
+      additionalBrowserArguments: map['additionalBrowserArguments'],
+      allowSingleSignOnUsingOSPrimaryAccount:
+          map['allowSingleSignOnUsingOSPrimaryAccount'],
+      browserExecutableFolder: map['browserExecutableFolder'],
+      language: map['language'],
+      targetCompatibleBrowserVersion: map['targetCompatibleBrowserVersion'],
+      userDataFolder: map['userDataFolder'],
+    );
+    return instance;
+  }
+
+  ///Converts instance to a map.
+  Map<String, dynamic> toMap() {
+    return {
+      "additionalBrowserArguments": additionalBrowserArguments,
+      "allowSingleSignOnUsingOSPrimaryAccount":
+          allowSingleSignOnUsingOSPrimaryAccount,
+      "browserExecutableFolder": browserExecutableFolder,
+      "language": language,
+      "targetCompatibleBrowserVersion": targetCompatibleBrowserVersion,
+      "userDataFolder": userDataFolder,
+    };
+  }
+
+  ///Converts instance to a map.
+  Map<String, dynamic> toJson() {
+    return toMap();
+  }
+
+  ///Returns a copy of WebViewEnvironmentSettings.
+  WebViewEnvironmentSettings copy() {
+    return WebViewEnvironmentSettings.fromMap(toMap()) ??
+        WebViewEnvironmentSettings();
+  }
+
+  @override
+  String toString() {
+    return 'WebViewEnvironmentSettings{additionalBrowserArguments: $additionalBrowserArguments, allowSingleSignOnUsingOSPrimaryAccount: $allowSingleSignOnUsingOSPrimaryAccount, browserExecutableFolder: $browserExecutableFolder, language: $language, targetCompatibleBrowserVersion: $targetCompatibleBrowserVersion, userDataFolder: $userDataFolder}';
+  }
+}

flutter_inappwebview_platform_interface/pubspec.yaml

@@ -1,6 +1,6 @@
 name: flutter_inappwebview_platform_interface
 description: A common platform interface for the flutter_inappwebview plugin.
-version: 1.0.10
+version: 1.0.11
 homepage: https://inappwebview.dev/
 repository: https://github.com/pichillilorenzo/flutter_inappwebview/tree/master/flutter_inappwebview_platform_interface
 issue_tracker: https://github.com/pichillilorenzo/flutter_inappwebview/issues

flutter_inappwebview_windows/example/pubspec.lock

@@ -86,10 +86,9 @@ packages:
   flutter_inappwebview_platform_interface:
     dependency: transitive
     description:
-      name: flutter_inappwebview_platform_interface
+      path: "../../flutter_inappwebview_platform_interface"
-      sha256: "545fd4c25a07d2775f7d5af05a979b2cac4fbf79393b0a7f5d33ba39ba4f6187"
+      relative: true
-      url: "https://pub.dev"
+    source: path
-    source: hosted
     version: "1.0.10"
   flutter_inappwebview_windows:
     dependency: "direct main"

flutter_inappwebview_windows/lib/src/cookie_manager.dart

@@ -5,39 +5,37 @@ import 'package:flutter/services.dart';
 
 import 'package:flutter_inappwebview_platform_interface/flutter_inappwebview_platform_interface.dart';
 
-import 'in_app_webview/headless_in_app_webview.dart';
+/// Object specifying creation parameters for creating a [WindowsCookieManager].
-import 'platform_util.dart';
-
-/// Object specifying creation parameters for creating a [MacOSCookieManager].
 ///
 /// When adding additional fields make sure they can be null or have a default
 /// value to avoid breaking changes. See [PlatformCookieManagerCreationParams] for
 /// more information.
 @immutable
-class MacOSCookieManagerCreationParams
+class WindowsCookieManagerCreationParams
     extends PlatformCookieManagerCreationParams {
-  /// Creates a new [MacOSCookieManagerCreationParams] instance.
+  /// Creates a new [WindowsCookieManagerCreationParams] instance.
-  const MacOSCookieManagerCreationParams(
+  const WindowsCookieManagerCreationParams(
       // This parameter prevents breaking changes later.
       // ignore: avoid_unused_constructor_parameters
       PlatformCookieManagerCreationParams params,
       ) : super();
 
-  /// Creates a [MacOSCookieManagerCreationParams] instance based on [PlatformCookieManagerCreationParams].
+  /// Creates a [WindowsCookieManagerCreationParams] instance based on [PlatformCookieManagerCreationParams].
-  factory MacOSCookieManagerCreationParams.fromPlatformCookieManagerCreationParams(
+  factory WindowsCookieManagerCreationParams.fromPlatformCookieManagerCreationParams(
       PlatformCookieManagerCreationParams params) {
-    return MacOSCookieManagerCreationParams(params);
+    return WindowsCookieManagerCreationParams(params);
   }
 }
 
 ///{@macro flutter_inappwebview_platform_interface.PlatformCookieManager}
-class MacOSCookieManager extends PlatformCookieManager with ChannelController {
+class WindowsCookieManager extends PlatformCookieManager
-  /// Creates a new [MacOSCookieManager].
+    with ChannelController {
-  MacOSCookieManager(PlatformCookieManagerCreationParams params)
+  /// Creates a new [WindowsCookieManager].
+  WindowsCookieManager(PlatformCookieManagerCreationParams params)
       : super.implementation(
-          params is MacOSCookieManagerCreationParams
+    params is WindowsCookieManagerCreationParams
         ? params
-              : MacOSCookieManagerCreationParams
+        : WindowsCookieManagerCreationParams
         .fromPlatformCookieManagerCreationParams(params),
   ) {
     channel = const MethodChannel(
@@ -46,15 +44,15 @@ class MacOSCookieManager extends PlatformCookieManager with ChannelController {
     initMethodCallHandler();
   }
 
-  static MacOSCookieManager? _instance;
+  static WindowsCookieManager? _instance;
 
-  ///Gets the [MacOSCookieManager] shared instance.
+  ///Gets the [WindowsCookieManager] shared instance.
-  static MacOSCookieManager instance() {
+  static WindowsCookieManager instance() {
     return (_instance != null) ? _instance! : _init();
   }
 
-  static MacOSCookieManager _init() {
+  static WindowsCookieManager _init() {
-    _instance = MacOSCookieManager(MacOSCookieManagerCreationParams(
+    _instance = WindowsCookieManager(WindowsCookieManagerCreationParams(
         const PlatformCookieManagerCreationParams()));
     return _instance!;
   }
@@ -76,28 +74,11 @@ class MacOSCookieManager extends PlatformCookieManager with ChannelController {
         @Deprecated("Use webViewController instead")
         PlatformInAppWebViewController? iosBelow11WebViewController,
         PlatformInAppWebViewController? webViewController}) async {
-    webViewController = webViewController ?? iosBelow11WebViewController;
-
     assert(url.toString().isNotEmpty);
     assert(name.isNotEmpty);
     assert(value.isNotEmpty);
     assert(path.isNotEmpty);
 
-    if (await _shouldUseJavascript()) {
-      await _setCookieWithJavaScript(
-          url: url,
-          name: name,
-          value: value,
-          domain: domain,
-          path: path,
-          expiresDate: expiresDate,
-          maxAge: maxAge,
-          isSecure: isSecure,
-          sameSite: sameSite,
-          webViewController: webViewController);
-      return true;
-    }
-
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent('url', () => url.toString());
     args.putIfAbsent('name', () => name);
@@ -113,57 +94,6 @@ class MacOSCookieManager extends PlatformCookieManager with ChannelController {
     return await channel?.invokeMethod<bool>('setCookie', args) ?? false;
   }
 
-  Future<void> _setCookieWithJavaScript(
-      {required WebUri url,
-      required String name,
-      required String value,
-      String path = "/",
-      String? domain,
-      int? expiresDate,
-      int? maxAge,
-      bool? isSecure,
-      HTTPCookieSameSitePolicy? sameSite,
-      PlatformInAppWebViewController? webViewController}) async {
-    var cookieValue = name + "=" + value + "; Path=" + path;
-
-    if (domain != null) cookieValue += "; Domain=" + domain;
-
-    if (expiresDate != null)
-      cookieValue += "; Expires=" + await _getCookieExpirationDate(expiresDate);
-
-    if (maxAge != null) cookieValue += "; Max-Age=" + maxAge.toString();
-
-    if (isSecure != null && isSecure) cookieValue += "; Secure";
-
-    if (sameSite != null)
-      cookieValue += "; SameSite=" + sameSite.toNativeValue();
-
-    cookieValue += ";";
-
-    if (webViewController != null) {
-      final javaScriptEnabled =
-          (await webViewController.getSettings())?.javaScriptEnabled ?? false;
-      if (javaScriptEnabled) {
-        await webViewController.evaluateJavascript(
-            source: 'document.cookie="$cookieValue"');
-        return;
-      }
-    }
-
-    final setCookieCompleter = Completer<void>();
-    final headlessWebView =
-        WindowsHeadlessInAppWebView(WindowsHeadlessInAppWebViewCreationParams(
-            initialUrlRequest: URLRequest(url: url),
-            onLoadStop: (controller, url) async {
-              await controller.evaluateJavascript(
-                  source: 'document.cookie="$cookieValue"');
-              setCookieCompleter.complete();
-            }));
-    await headlessWebView.run();
-    await setCookieCompleter.future;
-    await headlessWebView.dispose();
-  }
-
   @override
   Future<List<Cookie>> getCookies(
       {required WebUri url,
@@ -172,13 +102,6 @@ class MacOSCookieManager extends PlatformCookieManager with ChannelController {
         PlatformInAppWebViewController? webViewController}) async {
     assert(url.toString().isNotEmpty);
 
-    webViewController = webViewController ?? iosBelow11WebViewController;
-
-    if (await _shouldUseJavascript()) {
-      return await _getCookiesWithJavaScript(
-          url: url, webViewController: webViewController);
-    }
-
     List<Cookie> cookies = [];
 
     Map<String, dynamic> args = <String, dynamic>{};
@@ -203,64 +126,6 @@ class MacOSCookieManager extends PlatformCookieManager with ChannelController {
     return cookies;
   }
 
-  Future<List<Cookie>> _getCookiesWithJavaScript(
-      {required WebUri url,
-      PlatformInAppWebViewController? webViewController}) async {
-    assert(url.toString().isNotEmpty);
-
-    List<Cookie> cookies = [];
-
-    if (webViewController != null) {
-      final javaScriptEnabled =
-          (await webViewController.getSettings())?.javaScriptEnabled ?? false;
-      if (javaScriptEnabled) {
-        List<String> documentCookies = (await webViewController
-                .evaluateJavascript(source: 'document.cookie') as String)
-            .split(';')
-            .map((documentCookie) => documentCookie.trim())
-            .toList();
-        documentCookies.forEach((documentCookie) {
-          List<String> cookie = documentCookie.split('=');
-          if (cookie.length > 1) {
-            cookies.add(Cookie(
-              name: cookie[0],
-              value: cookie[1],
-            ));
-          }
-        });
-        return cookies;
-      }
-    }
-
-    final pageLoaded = Completer<void>();
-    final headlessWebView =
-        WindowsHeadlessInAppWebView(WindowsHeadlessInAppWebViewCreationParams(
-      initialUrlRequest: URLRequest(url: url),
-      onLoadStop: (controller, url) async {
-        pageLoaded.complete();
-      },
-    ));
-    await headlessWebView.run();
-    await pageLoaded.future;
-
-    List<String> documentCookies = (await headlessWebView.webViewController!
-            .evaluateJavascript(source: 'document.cookie') as String)
-        .split(';')
-        .map((documentCookie) => documentCookie.trim())
-        .toList();
-    documentCookies.forEach((documentCookie) {
-      List<String> cookie = documentCookie.split('=');
-      if (cookie.length > 1) {
-        cookies.add(Cookie(
-          name: cookie[0],
-          value: cookie[1],
-        ));
-      }
-    });
-    await headlessWebView.dispose();
-    return cookies;
-  }
-
   @override
   Future<Cookie?> getCookie(
       {required WebUri url,
@@ -271,16 +136,6 @@ class MacOSCookieManager extends PlatformCookieManager with ChannelController {
     assert(url.toString().isNotEmpty);
     assert(name.isNotEmpty);
 
-    webViewController = webViewController ?? iosBelow11WebViewController;
-
-    if (await _shouldUseJavascript()) {
-      List<Cookie> cookies = await _getCookiesWithJavaScript(
-          url: url, webViewController: webViewController);
-      return cookies
-          .cast<Cookie?>()
-          .firstWhere((cookie) => cookie!.name == name, orElse: () => null);
-    }
-
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent('url', () => url.toString());
     List<dynamic> cookies =
@@ -316,20 +171,6 @@ class MacOSCookieManager extends PlatformCookieManager with ChannelController {
     assert(url.toString().isNotEmpty);
     assert(name.isNotEmpty);
 
-    webViewController = webViewController ?? iosBelow11WebViewController;
-
-    if (await _shouldUseJavascript()) {
-      await _setCookieWithJavaScript(
-          url: url,
-          name: name,
-          value: "",
-          path: path,
-          domain: domain,
-          maxAge: -1,
-          webViewController: webViewController);
-      return true;
-    }
-
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent('url', () => url.toString());
     args.putIfAbsent('name', () => name);
@@ -348,24 +189,6 @@ class MacOSCookieManager extends PlatformCookieManager with ChannelController {
         PlatformInAppWebViewController? webViewController}) async {
     assert(url.toString().isNotEmpty);
 
-    webViewController = webViewController ?? iosBelow11WebViewController;
-
-    if (await _shouldUseJavascript()) {
-      List<Cookie> cookies = await _getCookiesWithJavaScript(
-          url: url, webViewController: webViewController);
-      for (var i = 0; i < cookies.length; i++) {
-        await _setCookieWithJavaScript(
-            url: url,
-            name: cookies[i].name,
-            value: "",
-            path: path,
-            domain: domain,
-            maxAge: -1,
-            webViewController: webViewController);
-      }
-      return true;
-    }
-
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent('url', () => url.toString());
     args.putIfAbsent('domain', () => domain);
@@ -380,46 +203,10 @@ class MacOSCookieManager extends PlatformCookieManager with ChannelController {
   }
 
   @override
-  Future<List<Cookie>> getAllCookies() async {
+  Future<bool> removeSessionCookies() async {
-    List<Cookie> cookies = [];
-
     Map<String, dynamic> args = <String, dynamic>{};
-    List<dynamic> cookieListMap =
+    return await channel?.invokeMethod<bool>('removeSessionCookies', args) ??
-        await channel?.invokeMethod<List>('getAllCookies', args) ?? [];
+        false;
-    cookieListMap = cookieListMap.cast<Map<dynamic, dynamic>>();
-
-    cookieListMap.forEach((cookieMap) {
-      cookies.add(Cookie(
-          name: cookieMap["name"],
-          value: cookieMap["value"],
-          expiresDate: cookieMap["expiresDate"],
-          isSessionOnly: cookieMap["isSessionOnly"],
-          domain: cookieMap["domain"],
-          sameSite:
-              HTTPCookieSameSitePolicy.fromNativeValue(cookieMap["sameSite"]),
-          isSecure: cookieMap["isSecure"],
-          isHttpOnly: cookieMap["isHttpOnly"],
-          path: cookieMap["path"]));
-    });
-    return cookies;
-  }
-
-  Future<String> _getCookieExpirationDate(int expiresDate) async {
-    var platformUtil = PlatformUtil.instance();
-    var dateTime = DateTime.fromMillisecondsSinceEpoch(expiresDate).toUtc();
-    return !kIsWeb
-        ? await platformUtil.formatDate(
-            date: dateTime,
-            format: 'EEE, dd MMM yyyy hh:mm:ss z',
-            locale: 'en_US',
-            timezone: 'GMT')
-        : await platformUtil.getWebCookieExpirationDate(date: dateTime);
-  }
-
-  Future<bool> _shouldUseJavascript() async {
-    final platformUtil = PlatformUtil.instance();
-    final systemVersion = await platformUtil.getSystemVersion();
-    return systemVersion.compareTo("11") == -1;
   }
 
   @override
@@ -428,6 +215,6 @@ class MacOSCookieManager extends PlatformCookieManager with ChannelController {
   }
 }
 
-extension InternalCookieManager on MacOSCookieManager {
+extension InternalCookieManager on WindowsCookieManager {
   get handleMethod => _handleMethod;
 }

flutter_inappwebview_windows/lib/src/find_interaction/find_interaction_controller.dart

@@ -2,7 +2,7 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_inappwebview_platform_interface/flutter_inappwebview_platform_interface.dart';
 
-/// Object specifying creation parameters for creating a [MacOSFindInteractionController].
+/// Object specifying creation parameters for creating a [WindowsFindInteractionController].
 ///
 /// When adding additional fields make sure they can be null or have a default
 /// value to avoid breaking changes. See [PlatformFindInteractionControllerCreationParams] for
@@ -25,10 +25,10 @@ class MacOSFindInteractionControllerCreationParams
 }
 
 ///{@macro flutter_inappwebview_platform_interface.PlatformFindInteractionController}
-class MacOSFindInteractionController extends PlatformFindInteractionController
+class WindowsFindInteractionController extends PlatformFindInteractionController
     with ChannelController {
-  /// Constructs a [MacOSFindInteractionController].
+  /// Constructs a [WindowsFindInteractionController].
-  MacOSFindInteractionController(
+  WindowsFindInteractionController(
       PlatformFindInteractionControllerCreationParams params)
       : super.implementation(
           params is MacOSFindInteractionControllerCreationParams
@@ -114,7 +114,7 @@ class MacOSFindInteractionController extends PlatformFindInteractionController
   }
 }
 
-extension InternalFindInteractionController on MacOSFindInteractionController {
+extension InternalFindInteractionController on WindowsFindInteractionController {
   void init(dynamic id) {
     channel = MethodChannel(
         'com.pichillilorenzo/flutter_inappwebview_find_interaction_$id');

flutter_inappwebview_windows/lib/src/in_app_browser/in_app_browser.dart

@@ -32,13 +32,13 @@ class WindowsInAppBrowserCreationParams
         contextMenu: params.contextMenu,
         pullToRefreshController: params.pullToRefreshController,
         findInteractionController:
-            params.findInteractionController as MacOSFindInteractionController?,
+            params.findInteractionController as WindowsFindInteractionController?,
         initialUserScripts: params.initialUserScripts,
         windowId: params.windowId);
   }
 
   @override
-  final MacOSFindInteractionController? findInteractionController;
+  final WindowsFindInteractionController? findInteractionController;
 }
 
 ///{@macro flutter_inappwebview_platform_interface.PlatformInAppBrowser}

flutter_inappwebview_windows/lib/src/in_app_webview/headless_in_app_webview.dart

@@ -238,10 +238,10 @@ class WindowsHeadlessInAppWebViewCreationParams
             initialUserScripts: params.initialUserScripts,
             pullToRefreshController: params.pullToRefreshController,
             findInteractionController: params.findInteractionController
-                as MacOSFindInteractionController?);
+                as WindowsFindInteractionController?);
 
   @override
-  final MacOSFindInteractionController? findInteractionController;
+  final WindowsFindInteractionController? findInteractionController;
 }
 
 ///{@macro flutter_inappwebview_platform_interface.PlatformHeadlessInAppWebView}

flutter_inappwebview_windows/lib/src/in_app_webview/in_app_webview.dart

@@ -23,6 +23,7 @@ class WindowsInAppWebViewWidgetCreationParams
       super.keepAlive,
       super.preventGestureDelay,
       super.windowId,
+        super.webViewEnvironment,
       super.onWebViewCreated,
       super.onLoadStart,
       super.onLoadStop,
@@ -145,6 +146,7 @@ class WindowsInAppWebViewWidgetCreationParams
             keepAlive: params.keepAlive,
             preventGestureDelay: params.preventGestureDelay,
             windowId: params.windowId,
+            webViewEnvironment: params.webViewEnvironment,
             onWebViewCreated: params.onWebViewCreated,
             onLoadStart: params.onLoadStart,
             onLoadStop: params.onLoadStop,
@@ -248,10 +250,10 @@ class WindowsInAppWebViewWidgetCreationParams
             initialUserScripts: params.initialUserScripts,
             pullToRefreshController: params.pullToRefreshController,
             findInteractionController: params.findInteractionController
-                as MacOSFindInteractionController?);
+                as WindowsFindInteractionController?);
 
   @override
-  final MacOSFindInteractionController? findInteractionController;
+  final WindowsFindInteractionController? findInteractionController;
 }
 
 ///{@macro flutter_inappwebview_platform_interface.PlatformInAppWebViewWidget}
@@ -267,12 +269,12 @@ class WindowsInAppWebViewWidget extends PlatformInAppWebViewWidget {
                   .fromPlatformInAppWebViewWidgetCreationParams(params),
         );
 
-  WindowsInAppWebViewWidgetCreationParams get _macosParams =>
+  WindowsInAppWebViewWidgetCreationParams get _windowsParams =>
       params as WindowsInAppWebViewWidgetCreationParams;
 
   WindowsInAppWebViewController? _controller;
 
-  WindowsHeadlessInAppWebView? get _macosHeadlessInAppWebView =>
+  WindowsHeadlessInAppWebView? get _windowsHeadlessInAppWebView =>
       params.headlessWebView as WindowsHeadlessInAppWebView?;
 
   @override
@@ -316,6 +318,7 @@ class WindowsInAppWebViewWidget extends PlatformInAppWebViewWidget {
         'initialUserScripts':
             params.initialUserScripts?.map((e) => e.toMap()).toList() ?? [],
         'keepAliveId': params.keepAlive?.id,
+        'webViewEnvironmentId': params.webViewEnvironment?.id,
       },
     );
   }
@@ -326,11 +329,11 @@ class WindowsInAppWebViewWidget extends PlatformInAppWebViewWidget {
       viewId = params.headlessWebView?.id;
     }
     viewId = params.keepAlive?.id ?? viewId ?? id;
-    _macosHeadlessInAppWebView?.internalDispose();
+    _windowsHeadlessInAppWebView?.internalDispose();
     _controller = WindowsInAppWebViewController(
         PlatformInAppWebViewControllerCreationParams(
             id: viewId, webviewParams: params));
-    _macosParams.findInteractionController?.init(viewId);
+    _windowsParams.findInteractionController?.init(viewId);
     debugLog(
         className: runtimeType.toString(),
         id: viewId?.toString(),

flutter_inappwebview_windows/lib/src/in_app_webview/in_app_webview_controller.dart

@@ -74,7 +74,7 @@ class WindowsInAppWebViewController extends PlatformInAppWebViewController
   };
   Set<String> _webMessageListenerObjNames = Set();
   Map<String, ScriptHtmlTagAttributes> _injectedScriptsFromURL = {};
-  Set<MacOSWebMessageChannel> _webMessageChannels = Set();
+  Set<WindowsWebMessageChannel> _webMessageChannels = Set();
   Set<MacOSWebMessageListener> _webMessageListeners = Set();
 
   // static map that contains the properties to be saved and restored for keep alive feature
@@ -187,7 +187,7 @@ class WindowsInAppWebViewController extends PlatformInAppWebViewController
           _userScripts = props.userScripts;
           _webMessageListenerObjNames = props.webMessageListenerObjNames;
           _webMessageChannels =
-              props.webMessageChannels as Set<MacOSWebMessageChannel>;
+              props.webMessageChannels as Set<WindowsWebMessageChannel>;
           _webMessageListeners =
               props.webMessageListeners as Set<MacOSWebMessageListener>;
         }
@@ -2007,7 +2007,8 @@ class WindowsInAppWebViewController extends PlatformInAppWebViewController
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent(
         'screenshotConfiguration', () => screenshotConfiguration?.toMap());
-    return await channel?.invokeMethod<Uint8List?>('takeScreenshot', args);
+    final base64 = await channel?.invokeMethod<String?>('takeScreenshot', args);
+    return base64 != null ? base64Decode(base64) : null;
   }
 
   @override
@@ -2460,12 +2461,12 @@ class WindowsInAppWebViewController extends PlatformInAppWebViewController
   }
 
   @override
-  Future<MacOSWebMessageChannel?> createWebMessageChannel() async {
+  Future<WindowsWebMessageChannel?> createWebMessageChannel() async {
     Map<String, dynamic> args = <String, dynamic>{};
     Map<String, dynamic>? result =
         (await channel?.invokeMethod('createWebMessageChannel', args))
             ?.cast<String, dynamic>();
-    final webMessageChannel = MacOSWebMessageChannel.static().fromMap(result);
+    final webMessageChannel = WindowsWebMessageChannel.static().fromMap(result);
     if (webMessageChannel != null) {
       _webMessageChannels.add(webMessageChannel);
     }

flutter_inappwebview_windows/lib/src/inappwebview_platform.dart

@@ -1,9 +1,11 @@
 import 'package:flutter_inappwebview_platform_interface/flutter_inappwebview_platform_interface.dart';
 
+import 'cookie_manager.dart';
 import 'in_app_browser/in_app_browser.dart';
 import 'in_app_webview/in_app_webview.dart';
 import 'in_app_webview/in_app_webview_controller.dart';
 import 'in_app_webview/headless_in_app_webview.dart';
+import 'webview_environment/webview_environment.dart';
 
 /// Implementation of [InAppWebViewPlatform] using the WebKit API.
 class WindowsInAppWebViewPlatform extends InAppWebViewPlatform {
@@ -12,6 +14,18 @@ class WindowsInAppWebViewPlatform extends InAppWebViewPlatform {
     InAppWebViewPlatform.instance = WindowsInAppWebViewPlatform();
   }
 
+  /// Creates a new [WindowsCookieManager].
+  ///
+  /// This function should only be called by the app-facing package.
+  /// Look at using [CookieManager] in `flutter_inappwebview` instead.
+  @override
+  WindowsCookieManager createPlatformCookieManager(
+      PlatformCookieManagerCreationParams params,
+      ) {
+    return WindowsCookieManager(params);
+  }
+
+
   /// Creates a new [WindowsInAppWebViewController].
   ///
   /// This function should only be called by the app-facing package.
@@ -73,4 +87,24 @@ class WindowsInAppWebViewPlatform extends InAppWebViewPlatform {
       ) {
     return WindowsHeadlessInAppWebView(params);
   }
+
+  /// Creates a new [WindowsWebViewEnvironment].
+  ///
+  /// This function should only be called by the app-facing package.
+  /// Look at using [WebViewEnvironment] in `flutter_inappwebview` instead.
+  @override
+  WindowsWebViewEnvironment createPlatformWebViewEnvironment(
+      PlatformWebViewEnvironmentCreationParams params,
+      ) {
+    return WindowsWebViewEnvironment(params);
+  }
+
+  /// Creates a new empty [WindowsWebViewEnvironment] to access static methods.
+  ///
+  /// This function should only be called by the app-facing package.
+  /// Look at using [WebViewEnvironment] in `flutter_inappwebview` instead.
+  @override
+  WindowsWebViewEnvironment createPlatformWebViewEnvironmentStatic() {
+    return WindowsWebViewEnvironment.static();
+  }
 }

flutter_inappwebview_windows/lib/src/main.dart

@@ -8,3 +8,4 @@ export 'http_auth_credentials_database.dart'
 export 'web_message/main.dart';
 export 'print_job/main.dart';
 export 'find_interaction/main.dart';
+export 'webview_environment/main.dart';

flutter_inappwebview_windows/lib/src/web_message/web_message_channel.dart

@@ -3,7 +3,7 @@ import 'package:flutter/services.dart';
 import 'package:flutter_inappwebview_platform_interface/flutter_inappwebview_platform_interface.dart';
 import 'web_message_port.dart';
 
-/// Object specifying creation parameters for creating a [MacOSWebMessageChannel].
+/// Object specifying creation parameters for creating a [WindowsWebMessageChannel].
 ///
 /// When adding additional fields make sure they can be null or have a default
 /// value to avoid breaking changes. See [PlatformWebMessageChannelCreationParams] for
@@ -31,10 +31,10 @@ class MacOSWebMessageChannelCreationParams
 }
 
 ///{@macro flutter_inappwebview_platform_interface.PlatformWebMessageChannel}
-class MacOSWebMessageChannel extends PlatformWebMessageChannel
+class WindowsWebMessageChannel extends PlatformWebMessageChannel
     with ChannelController {
-  /// Constructs a [MacOSWebMessageChannel].
+  /// Constructs a [WindowsWebMessageChannel].
-  MacOSWebMessageChannel(PlatformWebMessageChannelCreationParams params)
+  WindowsWebMessageChannel(PlatformWebMessageChannelCreationParams params)
       : super.implementation(
           params is MacOSWebMessageChannelCreationParams
               ? params
@@ -47,7 +47,7 @@ class MacOSWebMessageChannel extends PlatformWebMessageChannel
     initMethodCallHandler();
   }
 
-  static final MacOSWebMessageChannel _staticValue = MacOSWebMessageChannel(
+  static final WindowsWebMessageChannel _staticValue = WindowsWebMessageChannel(
       MacOSWebMessageChannelCreationParams(
           id: '',
           port1:
@@ -56,7 +56,7 @@ class MacOSWebMessageChannel extends PlatformWebMessageChannel
               MacOSWebMessagePortCreationParams(index: 1))));
 
   /// Provide static access.
-  factory MacOSWebMessageChannel.static() {
+  factory WindowsWebMessageChannel.static() {
     return _staticValue;
   }
 
@@ -64,11 +64,11 @@ class MacOSWebMessageChannel extends PlatformWebMessageChannel
 
   MacOSWebMessagePort get _macosPort2 => port2 as MacOSWebMessagePort;
 
-  static MacOSWebMessageChannel? _fromMap(Map<String, dynamic>? map) {
+  static WindowsWebMessageChannel? _fromMap(Map<String, dynamic>? map) {
     if (map == null) {
       return null;
     }
-    var webMessageChannel = MacOSWebMessageChannel(
+    var webMessageChannel = WindowsWebMessageChannel(
         MacOSWebMessageChannelCreationParams(
             id: map["id"],
             port1: MacOSWebMessagePort(
@@ -100,7 +100,7 @@ class MacOSWebMessageChannel extends PlatformWebMessageChannel
   }
 
   @override
-  MacOSWebMessageChannel? fromMap(Map<String, dynamic>? map) {
+  WindowsWebMessageChannel? fromMap(Map<String, dynamic>? map) {
     return _fromMap(map);
   }
 
@@ -115,6 +115,6 @@ class MacOSWebMessageChannel extends PlatformWebMessageChannel
   }
 }
 
-extension InternalWebMessageChannel on MacOSWebMessageChannel {
+extension InternalWebMessageChannel on WindowsWebMessageChannel {
   MethodChannel? get internalChannel => channel;
 }

flutter_inappwebview_windows/lib/src/web_message/web_message_port.dart

@@ -31,7 +31,7 @@ class MacOSWebMessagePortCreationParams
 ///{@macro flutter_inappwebview_platform_interface.PlatformWebMessagePort}
 class MacOSWebMessagePort extends PlatformWebMessagePort {
   WebMessageCallback? _onMessage;
-  late MacOSWebMessageChannel _webMessageChannel;
+  late WindowsWebMessageChannel _webMessageChannel;
 
   /// Constructs a [MacOSWebMessagePort].
   MacOSWebMessagePort(PlatformWebMessagePortCreationParams params)
@@ -89,7 +89,7 @@ extension InternalWebMessagePort on MacOSWebMessagePort {
   WebMessageCallback? get onMessage => _onMessage;
   void set onMessage(WebMessageCallback? value) => _onMessage = value;
 
-  MacOSWebMessageChannel get webMessageChannel => _webMessageChannel;
+  WindowsWebMessageChannel get webMessageChannel => _webMessageChannel;
-  void set webMessageChannel(MacOSWebMessageChannel value) =>
+  void set webMessageChannel(WindowsWebMessageChannel value) =>
       _webMessageChannel = value;
 }

flutter_inappwebview_windows/lib/src/webview_environment/main.dart

@@ -0,0 +1 @@
+export 'webview_environment.dart' hide InternalWindowsWebViewEnvironment;

flutter_inappwebview_windows/lib/src/webview_environment/webview_environment.dart

@@ -0,0 +1,102 @@
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_inappwebview_platform_interface/flutter_inappwebview_platform_interface.dart';
+
+/// Object specifying creation parameters for creating a [WindowsWebViewEnvironment].
+///
+/// Platform specific implementations can add additional fields by extending
+/// this class.
+@immutable
+class WindowsWebViewEnvironmentCreationParams extends PlatformWebViewEnvironmentCreationParams {
+  /// Creates a new [WindowsInAppWebViewControllerCreationParams] instance.
+  const WindowsWebViewEnvironmentCreationParams({super.settings});
+
+  /// Creates a [WindowsInAppWebViewControllerCreationParams] instance based on [PlatformInAppWebViewControllerCreationParams].
+  factory WindowsWebViewEnvironmentCreationParams.fromPlatformWebViewEnvironmentCreationParams(
+      // Recommended placeholder to prevent being broken by platform interface.
+      // ignore: avoid_unused_constructor_parameters
+      PlatformWebViewEnvironmentCreationParams params) {
+    return WindowsWebViewEnvironmentCreationParams(
+      settings: params.settings
+    );
+  }
+}
+
+///Controls a WebView Environment used by WebView instances.
+///
+///**Officially Supported Platforms/Implementations**:
+///- Windows
+class WindowsWebViewEnvironment extends PlatformWebViewEnvironment
+    with ChannelController {
+  static final MethodChannel _staticChannel = MethodChannel('com.pichillilorenzo/flutter_webview_environment');
+
+  @override
+  final String id = IdGenerator.generate();
+
+  WindowsWebViewEnvironment(
+      PlatformWebViewEnvironmentCreationParams params)
+      : super.implementation(params is WindowsWebViewEnvironmentCreationParams
+      ? params
+      : WindowsWebViewEnvironmentCreationParams
+      .fromPlatformWebViewEnvironmentCreationParams(params));
+
+  static final WindowsWebViewEnvironment _staticValue =
+    WindowsWebViewEnvironment(
+        WindowsWebViewEnvironmentCreationParams());
+
+  factory WindowsWebViewEnvironment.static() {
+    return _staticValue;
+  }
+
+  _debugLog(String method, dynamic args) {
+    debugLog(
+        className: this.runtimeType.toString(),
+        id: id,
+        debugLoggingSettings:
+        PlatformWebViewEnvironment.debugLoggingSettings,
+        method: method,
+        args: args);
+  }
+
+  Future<dynamic> _handleMethod(MethodCall call) async {
+    if (PlatformWebViewEnvironment.debugLoggingSettings.enabled) {
+      _debugLog(call.method, call.arguments);
+    }
+
+    switch (call.method) {
+      default:
+        throw UnimplementedError("Unimplemented ${call.method} method");
+    }
+    return null;
+  }
+
+  @override
+  Future<WindowsWebViewEnvironment> create(
+      {WebViewEnvironmentSettings? settings}) async {
+    final env = WindowsWebViewEnvironment(
+        WindowsWebViewEnvironmentCreationParams(settings: settings)
+    );
+
+    Map<String, dynamic> args = <String, dynamic>{};
+    args.putIfAbsent('id', () => env.id);
+    args.putIfAbsent('settings', () => env.settings?.toMap());
+    await _staticChannel.invokeMethod(
+        'create', args);
+
+    env.channel = MethodChannel('com.pichillilorenzo/flutter_webview_environment_$id');
+    env.handler = env.handleMethod;
+    env.initMethodCallHandler();
+    return env;
+  }
+
+  @override
+  Future<void> dispose() async {
+    Map<String, dynamic> args = <String, dynamic>{};
+    await channel?.invokeMethod('dispose', args);
+    disposeChannel();
+  }
+}
+
+extension InternalWindowsWebViewEnvironment on WindowsWebViewEnvironment {
+  get handleMethod => _handleMethod;
+}

flutter_inappwebview_windows/pubspec.yaml

@@ -18,7 +18,8 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  flutter_inappwebview_platform_interface: ^1.0.10
+  flutter_inappwebview_platform_interface: #^1.0.10
+    path: ../flutter_inappwebview_platform_interface
 
 dev_dependencies:
   flutter_test:

flutter_inappwebview_windows/windows/CMakeLists.txt

@@ -72,6 +72,10 @@ list(APPEND PLUGIN_SOURCES
   "types/plugin_script.h"
   "types/size_2d.cpp"
   "types/size_2d.h"
+  "types/rect.cpp"
+  "types/rect.h"
+  "types/screenshot_configuration.cpp"
+  "types/screenshot_configuration.h"
   "custom_platform_view/custom_platform_view.cc"
   "custom_platform_view/custom_platform_view.h"
   "custom_platform_view/texture_bridge.cc"
@@ -88,6 +92,14 @@ list(APPEND PLUGIN_SOURCES
   "plugin_scripts_js/plugin_scripts_util.h"
   "plugin_scripts_js/javascript_bridge_js.cpp"
   "plugin_scripts_js/javascript_bridge_js.h"
+  "webview_environment/webview_environment_settings.cpp"
+  "webview_environment/webview_environment_settings.h"
+  "webview_environment/webview_environment.cpp"
+  "webview_environment/webview_environment.h"
+  "webview_environment/webview_environment_manager.cpp"
+  "webview_environment/webview_environment_manager.h"
+  "webview_environment/webview_environment_channel_delegate.cpp"
+  "webview_environment/webview_environment_channel_delegate.h"
   "in_app_webview/user_content_controller.cpp"
   "in_app_webview/user_content_controller.h"
   "in_app_webview/in_app_webview_settings.cpp"
@@ -112,6 +124,8 @@ list(APPEND PLUGIN_SOURCES
   "in_app_browser/in_app_browser.h"
   "in_app_browser/in_app_browser_channel_delegate.cpp"
   "in_app_browser/in_app_browser_channel_delegate.h"
+  "cookie_manager.cpp"
+  "cookie_manager.h"
 )
 
 # Define the plugin library target. Its name must not be changed (see comment

flutter_inappwebview_windows/windows/cookie_manager.cpp

@@ -0,0 +1,120 @@
+#include <nlohmann/json.hpp>
+#include <Shlwapi.h>
+#include <time.h>
+#include <winrt/base.h>
+#include <wrl/event.h>
+
+#include "cookie_manager.h"
+#include "in_app_webview/in_app_webview.h"
+#include "utils/log.h"
+
+namespace flutter_inappwebview_plugin
+{
+  using namespace Microsoft::WRL;
+
+  CookieManager::CookieManager(const FlutterInappwebviewWindowsPlugin* plugin)
+    : ChannelDelegate(plugin->registrar->messenger(), CookieManager::METHOD_CHANNEL_NAME_PREFIX)
+  {
+    windowClass_.lpszClassName = CookieManager::CLASS_NAME;
+    windowClass_.lpfnWndProc = &DefWindowProc;
+
+    RegisterClass(&windowClass_);
+
+    auto hwnd = CreateWindowEx(0, windowClass_.lpszClassName, L"", 0, 0,
+      0, 0, 0,
+      plugin->registrar->GetView()->GetNativeWindow(),
+      nullptr,
+      windowClass_.hInstance, nullptr);
+
+    CreateInAppWebViewEnvParams webViewEnvParams = {
+      hwnd,
+      false
+    };
+
+    InAppWebView::createInAppWebViewEnv(webViewEnvParams, nullptr,
+      [=](wil::com_ptr<ICoreWebView2Environment> webViewEnv,
+        wil::com_ptr<ICoreWebView2Controller> webViewController,
+        wil::com_ptr<ICoreWebView2CompositionController> webViewCompositionController)
+      {
+        if (webViewEnv && webViewController) {
+          webViewEnv_ = std::move(webViewEnv);
+          webViewController_ = std::move(webViewController);
+          webViewController_->get_CoreWebView2(&webView_);
+          webViewController_->put_IsVisible(false);
+        }
+      });
+  }
+
+  void CookieManager::HandleMethodCall(const flutter::MethodCall<flutter::EncodableValue>& method_call,
+    std::unique_ptr<flutter::MethodResult<flutter::EncodableValue>> result)
+  {
+    auto& arguments = std::get<flutter::EncodableMap>(*method_call.arguments());
+    auto& methodName = method_call.method_name();
+
+    if (string_equals(methodName, "setCookie")) {
+      if (!webView_) {
+        result->Success(false);
+        return;
+      }
+
+      auto url = get_fl_map_value<std::string>(arguments, "url");
+      auto name = get_fl_map_value<std::string>(arguments, "name");
+      auto value = get_fl_map_value<std::string>(arguments, "value");
+      auto path = get_fl_map_value<std::string>(arguments, "path");
+      auto domain = get_optional_fl_map_value<std::string>(arguments, "domain");
+      auto expiresDate = get_optional_fl_map_value<int64_t>(arguments, "expiresDate");
+      auto maxAge = get_optional_fl_map_value<int64_t>(arguments, "maxAge");
+      auto isSecure = get_optional_fl_map_value<bool>(arguments, "isSecure");
+      auto isHttpOnly = get_optional_fl_map_value<bool>(arguments, "isHttpOnly");
+      auto sameSite = get_optional_fl_map_value<std::string>(arguments, "sameSite");
+
+      nlohmann::json parameters = {
+        {"url", url},
+        {"name", name},
+        {"value", value},
+        {"path", path}
+      };
+      if (domain.has_value()) {
+        parameters["domain"] = domain.value();
+      }
+      if (expiresDate.has_value()) {
+        parameters["expires"] = expiresDate.value() / 1000;
+      }
+      debugLog(maxAge.value());
+      if (maxAge.has_value()) {
+        // time(NULL) represents the current unix timestamp in seconds
+        parameters["expires"] = time(NULL) + maxAge.value();
+      }
+      if (isSecure.has_value()) {
+        parameters["secure"] = isSecure.value();
+      }
+      if (isHttpOnly.has_value()) {
+        parameters["httpOnly"] = isHttpOnly.value();
+      }
+      if (sameSite.has_value()) {
+        parameters["sameSite"] = sameSite.value();
+      }
+
+      auto result_ = std::shared_ptr<flutter::MethodResult<flutter::EncodableValue>>(std::move(result));
+      auto hr = webView_->CallDevToolsProtocolMethod(L"Network.setCookie", utf8_to_wide(parameters.dump()).c_str(), Callback<ICoreWebView2CallDevToolsProtocolMethodCompletedHandler>(
+        [this, result_](HRESULT errorCode, LPCWSTR returnObjectAsJson)
+        {
+          result_->Success(succeededOrLog(errorCode));
+          return S_OK;
+        }
+      ).Get());
+
+      if (failedAndLog(hr)) {
+        result_->Success(false);
+      }
+    }
+    else {
+      result->NotImplemented();
+    }
+  }
+
+  CookieManager::~CookieManager()
+  {
+    debugLog("dealloc CookieManager");
+  }
+}

flutter_inappwebview_windows/windows/cookie_manager.h

@@ -0,0 +1,36 @@
+#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_COOKIE_MANAGER_H_
+#define FLUTTER_INAPPWEBVIEW_PLUGIN_COOKIE_MANAGER_H_
+
+#include <flutter/method_channel.h>
+#include <flutter/standard_message_codec.h>
+#include <WebView2.h>
+#include <wil/com.h>
+
+#include "flutter_inappwebview_windows_plugin.h"
+#include "types/channel_delegate.h"
+
+namespace flutter_inappwebview_plugin
+{
+  class CookieManager : public ChannelDelegate
+  {
+  public:
+    static inline const wchar_t* CLASS_NAME = L"CookieManager";
+    static inline const std::string METHOD_CHANNEL_NAME_PREFIX = "com.pichillilorenzo/flutter_inappwebview_cookiemanager";
+
+    const FlutterInappwebviewWindowsPlugin* plugin;
+
+    CookieManager(const FlutterInappwebviewWindowsPlugin* plugin);
+    ~CookieManager();
+
+    void HandleMethodCall(
+      const flutter::MethodCall<flutter::EncodableValue>& method_call,
+      std::unique_ptr<flutter::MethodResult<flutter::EncodableValue>> result);
+  private:
+    wil::com_ptr<ICoreWebView2Environment> webViewEnv_;
+    wil::com_ptr<ICoreWebView2Controller> webViewController_;
+    wil::com_ptr<ICoreWebView2> webView_;
+    WNDCLASS windowClass_ = {};
+  };
+}
+
+#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_COOKIE_MANAGER_H_

flutter_inappwebview_windows/windows/flutter_inappwebview_windows_plugin.cpp

@@ -2,9 +2,11 @@
 
 #include <flutter/plugin_registrar_windows.h>
 
+#include "cookie_manager.h"
 #include "headless_in_app_webview/headless_in_app_webview_manager.h"
 #include "in_app_browser/in_app_browser_manager.h"
 #include "in_app_webview/in_app_webview_manager.h"
+#include "webview_environment/webview_environment_manager.h"
 
 #pragma comment(lib, "Shlwapi.lib")
 #pragma comment(lib, "dxgi.lib")
@@ -23,9 +25,11 @@ namespace flutter_inappwebview_plugin
   FlutterInappwebviewWindowsPlugin::FlutterInappwebviewWindowsPlugin(flutter::PluginRegistrarWindows* registrar)
     : registrar(registrar)
   {
+    webViewEnvironmentManager = std::make_unique<WebViewEnvironmentManager>(this);
     inAppWebViewManager = std::make_unique<InAppWebViewManager>(this);
     inAppBrowserManager = std::make_unique<InAppBrowserManager>(this);
     headlessInAppWebViewManager = std::make_unique<HeadlessInAppWebViewManager>(this);
+    cookieManager = std::make_unique<CookieManager>(this);
   }
 
   FlutterInappwebviewWindowsPlugin::~FlutterInappwebviewWindowsPlugin()

flutter_inappwebview_windows/windows/flutter_inappwebview_windows_plugin.h

@@ -6,16 +6,20 @@
 
 namespace flutter_inappwebview_plugin
 {
+  class WebViewEnvironmentManager;
   class InAppWebViewManager;
   class InAppBrowserManager;
   class HeadlessInAppWebViewManager;
+  class CookieManager;
 
   class FlutterInappwebviewWindowsPlugin : public flutter::Plugin {
   public:
     flutter::PluginRegistrarWindows* registrar;
+    std::unique_ptr<WebViewEnvironmentManager> webViewEnvironmentManager;
     std::unique_ptr<InAppWebViewManager> inAppWebViewManager;
     std::unique_ptr<InAppBrowserManager> inAppBrowserManager;
     std::unique_ptr<HeadlessInAppWebViewManager> headlessInAppWebViewManager;
+    std::unique_ptr<CookieManager> cookieManager;
 
     static void RegisterWithRegistrar(flutter::PluginRegistrarWindows* registrar);
 

flutter_inappwebview_windows/windows/headless_in_app_webview/headless_in_app_webview.cpp

@@ -19,7 +19,6 @@ namespace flutter_inappwebview_plugin
     if (!webView) {
       return;
     }
-    webView->webViewController->put_IsVisible(false);
   }
 
   void HeadlessInAppWebView::setSize(const std::shared_ptr<Size2D> size) const
@@ -48,12 +47,13 @@ namespace flutter_inappwebview_plugin
   HeadlessInAppWebView::~HeadlessInAppWebView()
   {
     debugLog("dealloc HeadlessInAppWebView");
+    HWND parentWindow = nullptr;
     if (webView && webView->webViewController) {
-      HWND parentWindow;
+      webView->webViewController->get_ParentWindow(&parentWindow);
-      if (succeededOrLog(webView->webViewController->get_ParentWindow(&parentWindow))) {
+    }
+    webView = nullptr;
+    if (parentWindow) {
       DestroyWindow(parentWindow);
     }
   }
-    webView = nullptr;
-  }
 }

flutter_inappwebview_windows/windows/headless_in_app_webview/headless_in_app_webview_manager.cpp

@@ -10,8 +10,10 @@
 #include "../types/user_script.h"
 #include "../utils/flutter.h"
 #include "../utils/log.h"
+#include "../utils/map.h"
 #include "../utils/string.h"
 #include "../utils/vector.h"
+#include "../webview_environment/webview_environment_manager.h"
 #include "headless_in_app_webview_manager.h"
 
 namespace flutter_inappwebview_plugin
@@ -54,6 +56,7 @@ namespace flutter_inappwebview_plugin
     auto initialFile = get_optional_fl_map_value<std::string>(params, "initialFile");
     auto initialDataMap = get_optional_fl_map_value<flutter::EncodableMap>(params, "initialData");
     auto initialUserScriptList = get_optional_fl_map_value<flutter::EncodableList>(params, "initialUserScripts");
+    auto webViewEnvironmentId = get_optional_fl_map_value<std::string>(*arguments, "webViewEnvironmentId");
 
     RECT bounds;
     GetClientRect(plugin->registrar->GetView()->GetNativeWindow(), &bounds);
@@ -67,7 +70,15 @@ namespace flutter_inappwebview_plugin
       nullptr,
       windowClass_.hInstance, nullptr);
 
-    InAppWebView::createInAppWebViewEnv(hwnd, false,
+    CreateInAppWebViewEnvParams webViewEnvParams = {
+      hwnd,
+      false
+    };
+
+    auto webViewEnvironment = webViewEnvironmentId.has_value() && map_contains(plugin->webViewEnvironmentManager->webViewEnvironments, webViewEnvironmentId.value())
+      ? plugin->webViewEnvironmentManager->webViewEnvironments.at(webViewEnvironmentId.value()).get() : nullptr;
+
+    InAppWebView::createInAppWebViewEnv(webViewEnvParams, webViewEnvironment,
       [=](wil::com_ptr<ICoreWebView2Environment> webViewEnv,
         wil::com_ptr<ICoreWebView2Controller> webViewController,
         wil::com_ptr<ICoreWebView2CompositionController> webViewCompositionController)

flutter_inappwebview_windows/windows/in_app_browser/in_app_browser.cpp

@@ -2,6 +2,7 @@
 
 #include "../utils/log.h"
 #include "../utils/strconv.h"
+#include "../webview_environment/webview_environment_manager.h"
 #include "in_app_browser.h"
 #include "in_app_browser_manager.h"
 
@@ -41,13 +42,22 @@ namespace flutter_inappwebview_plugin
 
     ShowWindow(m_hWnd, settings->hidden ? SW_HIDE : SW_SHOW);
 
+    CreateInAppWebViewEnvParams webViewEnvParams = {
+      m_hWnd,
+      false
+    };
+
+
     InAppWebViewCreationParams webViewParams = {
       id,
       params.initialWebViewSettings,
       params.initialUserScripts
     };
 
-    InAppWebView::createInAppWebViewEnv(m_hWnd, false,
+    auto webViewEnvironment = params.webViewEnvironmentId.has_value() && map_contains(plugin->webViewEnvironmentManager->webViewEnvironments, params.webViewEnvironmentId.value())
+      ? plugin->webViewEnvironmentManager->webViewEnvironments.at(params.webViewEnvironmentId.value()).get() : nullptr;
+
+    InAppWebView::createInAppWebViewEnv(webViewEnvParams, webViewEnvironment,
       [this, params, webViewParams](wil::com_ptr<ICoreWebView2Environment> webViewEnv, wil::com_ptr<ICoreWebView2Controller> webViewController, wil::com_ptr<ICoreWebView2CompositionController> webViewCompositionController) -> void
       {
         if (webViewEnv && webViewController) {
@@ -83,13 +93,11 @@ namespace flutter_inappwebview_plugin
   void InAppBrowser::show() const
   {
     ShowWindow(m_hWnd, SW_SHOW);
-    webView->webViewController->put_IsVisible(true);
   }
 
   void InAppBrowser::hide() const
   {
     ShowWindow(m_hWnd, SW_HIDE);
-    webView->webViewController->put_IsVisible(false);
   }
 
   bool InAppBrowser::isHidden() const

flutter_inappwebview_windows/windows/in_app_browser/in_app_browser.h

@@ -24,6 +24,7 @@ namespace flutter_inappwebview_plugin
     const std::shared_ptr<InAppBrowserSettings> initialSettings;
     const std::shared_ptr<InAppWebViewSettings> initialWebViewSettings;
     const std::optional<std::vector<std::shared_ptr<UserScript>>> initialUserScripts;
+    const std::optional<std::string> webViewEnvironmentId;
   };
 
   class InAppBrowser {

flutter_inappwebview_windows/windows/in_app_browser/in_app_browser_manager.cpp

@@ -53,6 +53,7 @@ namespace flutter_inappwebview_plugin
     auto assetFilePath = get_optional_fl_map_value<std::string>(*arguments, "assetFilePath");
     auto data = get_optional_fl_map_value<std::string>(*arguments, "data");
     auto initialUserScriptList = get_optional_fl_map_value<flutter::EncodableList>(*arguments, "initialUserScripts");
+    auto webViewEnvironmentId = get_optional_fl_map_value<std::string>(*arguments, "webViewEnvironmentId");
 
     std::optional<std::shared_ptr<URLRequest>> urlRequest = urlRequestMap.has_value() ? std::make_shared<URLRequest>(urlRequestMap.value()) : std::optional<std::shared_ptr<URLRequest>>{};
 
@@ -70,7 +71,8 @@ namespace flutter_inappwebview_plugin
       data,
       std::move(initialSettings),
       std::move(initialWebViewSettings),
-      initialUserScripts
+      initialUserScripts,
+      webViewEnvironmentId
     };
 
     auto inAppBrowser = std::make_unique<InAppBrowser>(plugin, params);

flutter_inappwebview_windows/windows/in_app_webview/in_app_webview.cpp

@@ -15,6 +15,7 @@
 #include "../utils/string.h"
 #include "in_app_webview.h"
 
+#include ".plugin_symlinks/flutter_inappwebview_windows/windows/webview_environment/webview_environment_manager.h"
 #include "in_app_webview_manager.h"
 
 namespace flutter_inappwebview_plugin
@@ -39,6 +40,7 @@ namespace flutter_inappwebview_plugin
       registerSurfaceEventHandlers();
     }
     else {
+      this->webViewController->put_IsVisible(true);
       // Resize WebView to fit the bounds of the parent window
       RECT bounds;
       GetClientRect(parentWindow, &bounds);
@@ -56,13 +58,11 @@ namespace flutter_inappwebview_plugin
     this->inAppBrowser = inAppBrowser;
   }
 
-  void InAppWebView::createInAppWebViewEnv(const HWND parentWindow, const bool willBeSurface, std::function<void(wil::com_ptr<ICoreWebView2Environment> webViewEnv,
+  void InAppWebView::createInAppWebViewEnv(const CreateInAppWebViewEnvParams& params, const WebViewEnvironment* webViewEnvironment, std::function<void(wil::com_ptr<ICoreWebView2Environment> webViewEnv,
     wil::com_ptr<ICoreWebView2Controller> webViewController,
     wil::com_ptr<ICoreWebView2CompositionController> webViewCompositionController)> completionHandler)
   {
-    failedLog(CreateCoreWebView2EnvironmentWithOptions(nullptr, nullptr, nullptr,
+    auto callback = [params, completionHandler](HRESULT result, wil::com_ptr<ICoreWebView2Environment> env) -> HRESULT
-      Callback<ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler>(
-        [parentWindow, completionHandler, willBeSurface](HRESULT result, wil::com_ptr<ICoreWebView2Environment> env) -> HRESULT
       {
         if (failedAndLog(result) || !env) {
           completionHandler(nullptr, nullptr, nullptr);
@@ -70,8 +70,8 @@ namespace flutter_inappwebview_plugin
         }
 
         wil::com_ptr<ICoreWebView2Environment3> webViewEnv3;
-          if (willBeSurface && succeededOrLog(env->QueryInterface(IID_PPV_ARGS(&webViewEnv3)))) {
+        if (params.willBeSurface && succeededOrLog(env->QueryInterface(IID_PPV_ARGS(&webViewEnv3)))) {
-            failedLog(webViewEnv3->CreateCoreWebView2CompositionController(parentWindow, Callback<ICoreWebView2CreateCoreWebView2CompositionControllerCompletedHandler>(
+          failedLog(webViewEnv3->CreateCoreWebView2CompositionController(params.parentWindow, Callback<ICoreWebView2CreateCoreWebView2CompositionControllerCompletedHandler>(
             [completionHandler, env](HRESULT result, wil::com_ptr<ICoreWebView2CompositionController> compositionController) -> HRESULT
             {
               wil::com_ptr<ICoreWebView2Controller3> webViewController = compositionController.try_query<ICoreWebView2Controller3>();
@@ -94,7 +94,7 @@ namespace flutter_inappwebview_plugin
           ).Get()));
         }
         else {
-            failedLog(env->CreateCoreWebView2Controller(parentWindow, Callback<ICoreWebView2CreateCoreWebView2ControllerCompletedHandler>(
+          failedLog(env->CreateCoreWebView2Controller(params.parentWindow, Callback<ICoreWebView2CreateCoreWebView2ControllerCompletedHandler>(
             [completionHandler, env](HRESULT result, wil::com_ptr<ICoreWebView2Controller> controller) -> HRESULT
             {
               if (failedAndLog(result) || !controller) {
@@ -107,7 +107,21 @@ namespace flutter_inappwebview_plugin
             }).Get()));
         }
         return S_OK;
-        }).Get()));
+      };
+
+    HRESULT hr;
+    if (webViewEnvironment && webViewEnvironment->env) {
+      hr = callback(S_OK, webViewEnvironment->env);
+    }
+    else {
+      hr = CreateCoreWebView2EnvironmentWithOptions(
+        nullptr, nullptr, nullptr,
+        Callback<ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler>(callback).Get());
+    }
+
+    if (failedAndLog(hr)) {
+      completionHandler(nullptr, nullptr, nullptr);
+    }
   }
 
   void InAppWebView::initChannel(const std::optional<std::variant<std::string, int64_t>> viewId, const std::optional<std::string> channelName)
@@ -168,11 +182,12 @@ namespace flutter_inappwebview_plugin
       }
     ).Get()));
 
+    if (userContentController) {
       userContentController->addPluginScript(std::move(createJavaScriptBridgePluginScript()));
-
       if (params.initialUserScripts.has_value()) {
         userContentController->addUserOnlyScripts(params.initialUserScripts.value());
       }
+    }
 
     registerEventHandlers();
   }
@@ -392,18 +407,6 @@ namespace flutter_inappwebview_plugin
           return S_OK;
         }
 
-        /*
-        wil::unique_cotaskmem_string url;
-        args->get_Source(&url);
-
-        wil::com_ptr<IUri> uri;
-        failedLog(CreateUri(
-          url.get(),                  // NULL terminated URI
-          Uri_CREATE_ALLOW_RELATIVE,  // Flags to control behavior
-          0,                          // Reserved must be 0
-          &uri));
-        */
-
         wil::unique_cotaskmem_string json;
         if (succeededOrLog(args->get_WebMessageAsJson(&json))) {
           auto message = nlohmann::json::parse(wide_to_utf8(json.get()));
@@ -650,7 +653,7 @@ namespace flutter_inappwebview_plugin
     return webView && succeededOrLog(webView->get_CanGoForward(&canGoForward_)) ? canGoForward_ : false;
   }
 
-  void InAppWebView::goBackOrForward(const int& steps)
+  void InAppWebView::goBackOrForward(const int64_t& steps)
   {
     getCopyBackForwardList(
       [this, steps](std::unique_ptr<WebHistory> webHistory)
@@ -682,7 +685,7 @@ namespace flutter_inappwebview_plugin
     );
   }
 
-  void InAppWebView::canGoBackOrForward(const int& steps, std::function<void(bool)> completionHandler) const
+  void InAppWebView::canGoBackOrForward(const int64_t& steps, std::function<void(bool)> completionHandler) const
   {
     getCopyBackForwardList(
       [steps, completionHandler](std::unique_ptr<WebHistory> webHistory)
@@ -920,6 +923,55 @@ namespace flutter_inappwebview_plugin
     userContentController->removeAllUserOnlyScripts();
   }
 
+  void InAppWebView::takeScreenshot(const std::optional<std::shared_ptr<ScreenshotConfiguration>> screenshotConfiguration, const std::function<void(const std::optional<std::string>)> completionHandler) const
+  {
+    if (!webView) {
+      if (completionHandler) {
+        completionHandler(std::nullopt);
+      }
+      return;
+    }
+
+    nlohmann::json parameters = {
+      {"captureBeyondViewport", true}
+    };
+    if (screenshotConfiguration.has_value()) {
+      auto& scp = screenshotConfiguration.value();
+      parameters["format"] = to_lowercase_copy(CompressFormatToString(scp->compressFormat));
+      if (scp->compressFormat == CompressFormat::jpeg) {
+        parameters["quality"] = scp->quality;
+      }
+      if (scp->rect.has_value()) {
+        auto& rect = scp->rect.value();
+        parameters["clip"] = {
+          {"x", rect->x},
+          {"y", rect->y},
+          {"width", rect->width},
+          {"height", rect->height},
+          {"scale", scaleFactor_}
+        };
+      }
+    }
+
+    auto hr = webView->CallDevToolsProtocolMethod(L"Page.captureScreenshot", utf8_to_wide(parameters.dump()).c_str(), Callback<ICoreWebView2CallDevToolsProtocolMethodCompletedHandler>(
+      [this, completionHandler](HRESULT errorCode, LPCWSTR returnObjectAsJson)
+      {
+        std::optional<std::string> result = std::nullopt;
+        if (succeededOrLog(errorCode)) {
+          nlohmann::json json = nlohmann::json::parse(wide_to_utf8(returnObjectAsJson));
+          result = json["data"].get<std::string>();
+        }
+        if (completionHandler) {
+          completionHandler(result);
+        }
+        return S_OK;
+      }
+    ).Get());
+    if (failedAndLog(hr) && completionHandler) {
+      completionHandler(std::nullopt);
+    }
+  }
+
   // flutter_view
   void InAppWebView::setSurfaceSize(size_t width, size_t height, float scale_factor)
   {
@@ -1187,15 +1239,16 @@ namespace flutter_inappwebview_plugin
   InAppWebView::~InAppWebView()
   {
     debugLog("dealloc InAppWebView");
-    HWND parentWindow = nullptr;
+    userContentController = nullptr;
-    if (webViewCompositionController && succeededOrLog(webViewController->get_ParentWindow(&parentWindow))) {
-      // if it's an InAppWebView,
-      // then destroy the Window created with it
-      DestroyWindow(parentWindow);
-    }
     if (webView) {
       failedLog(webView->Stop());
     }
+    HWND parentWindow = nullptr;
+    if (webViewCompositionController && webViewController && succeededOrLog(webViewController->get_ParentWindow(&parentWindow))) {
+      // if it's an InAppWebView (so webViewCompositionController will be not a nullptr!),
+      // then destroy the Window created with it
+      DestroyWindow(parentWindow);
+    }
     if (webViewController) {
       failedLog(webViewController->Close());
     }

flutter_inappwebview_windows/windows/in_app_webview/in_app_webview.h

@@ -14,6 +14,8 @@
 #include "../types/navigation_action.h"
 #include "../types/url_request.h"
 #include "../types/web_history.h"
+#include "../webview_environment/webview_environment.h"
+#include ".plugin_symlinks/flutter_inappwebview_windows/windows/types/screenshot_configuration.h"
 #include "in_app_webview_settings.h"
 #include "user_content_controller.h"
 #include "webview_channel_delegate.h"
@@ -81,6 +83,11 @@ namespace flutter_inappwebview_plugin
     const std::optional<std::vector<std::shared_ptr<UserScript>>> initialUserScripts;
   };
 
+  struct CreateInAppWebViewEnvParams {
+    const HWND parentWindow;
+    const bool willBeSurface;
+  };
+
   class InAppWebView
   {
   public:
@@ -107,7 +114,7 @@ namespace flutter_inappwebview_plugin
       wil::com_ptr<ICoreWebView2CompositionController> webViewCompositionController);
     ~InAppWebView();
 
-    static void createInAppWebViewEnv(const HWND parentWindow, const bool willBeSurface, std::function<void(wil::com_ptr<ICoreWebView2Environment> webViewEnv,
+    static void createInAppWebViewEnv(const CreateInAppWebViewEnvParams& params, const WebViewEnvironment* webViewEnvironment, std::function<void(wil::com_ptr<ICoreWebView2Environment> webViewEnv,
       wil::com_ptr<ICoreWebView2Controller> webViewController,
       wil::com_ptr<ICoreWebView2CompositionController> webViewCompositionController)> completionHandler);
 
@@ -147,8 +154,8 @@ namespace flutter_inappwebview_plugin
     bool canGoBack() const;
     void goForward();
     bool canGoForward() const;
-    void goBackOrForward(const int& steps);
+    void goBackOrForward(const int64_t& steps);
-    void canGoBackOrForward(const int& steps, std::function<void(bool)> completionHandler) const;
+    void canGoBackOrForward(const int64_t& steps, std::function<void(bool)> completionHandler) const;
     bool isLoading() const
     {
       return isLoading_;
@@ -161,6 +168,7 @@ namespace flutter_inappwebview_plugin
     void removeUserScript(const int64_t index, const std::shared_ptr<UserScript> userScript) const;
     void removeUserScriptsByGroupName(const std::string& groupName) const;
     void removeAllUserScripts() const;
+    void takeScreenshot(const std::optional<std::shared_ptr<ScreenshotConfiguration>> screenshotConfiguration, const std::function<void(const std::optional<std::string>)> completionHandler) const;
 
     std::string pageFrameId() const
     {

flutter_inappwebview_windows/windows/in_app_webview/in_app_webview_manager.cpp

@@ -13,6 +13,8 @@
 #include "../utils/vector.h"
 #include "in_app_webview_manager.h"
 
+#include ".plugin_symlinks/flutter_inappwebview_windows/windows/webview_environment/webview_environment_manager.h"
+
 namespace flutter_inappwebview_plugin
 {
   InAppWebViewManager::InAppWebViewManager(const FlutterInappwebviewWindowsPlugin* plugin)
@@ -83,6 +85,7 @@ namespace flutter_inappwebview_plugin
     auto initialFile = get_optional_fl_map_value<std::string>(*arguments, "initialFile");
     auto initialDataMap = get_optional_fl_map_value<flutter::EncodableMap>(*arguments, "initialData");
     auto initialUserScriptList = get_optional_fl_map_value<flutter::EncodableList>(*arguments, "initialUserScripts");
+    auto webViewEnvironmentId = get_optional_fl_map_value<std::string>(*arguments, "webViewEnvironmentId");
 
     RECT bounds;
     GetClientRect(plugin->registrar->GetView()->GetNativeWindow(), &bounds);
@@ -93,7 +96,15 @@ namespace flutter_inappwebview_plugin
       nullptr,
       windowClass_.hInstance, nullptr);
 
-    InAppWebView::createInAppWebViewEnv(hwnd, true,
+    CreateInAppWebViewEnvParams webViewEnvParams = {
+      hwnd,
+      true
+    };
+
+    auto webViewEnvironment = webViewEnvironmentId.has_value() && map_contains(plugin->webViewEnvironmentManager->webViewEnvironments, webViewEnvironmentId.value())
+      ? plugin->webViewEnvironmentManager->webViewEnvironments.at(webViewEnvironmentId.value()).get() : nullptr;
+
+    InAppWebView::createInAppWebViewEnv(webViewEnvParams, webViewEnvironment,
       [=](wil::com_ptr<ICoreWebView2Environment> webViewEnv,
         wil::com_ptr<ICoreWebView2Controller> webViewController,
         wil::com_ptr<ICoreWebView2CompositionController> webViewCompositionController)

flutter_inappwebview_windows/windows/in_app_webview/webview_channel_delegate.cpp

@@ -159,6 +159,16 @@ namespace flutter_inappwebview_plugin
       webView->removeAllUserScripts();
       result->Success(true);
     }
+    else if (string_equals(methodName, "takeScreenshot")) {
+      auto result_ = std::shared_ptr<flutter::MethodResult<flutter::EncodableValue>>(std::move(result));
+      auto screenshotConfigurationMap = get_optional_fl_map_value<flutter::EncodableMap>(arguments, "screenshotConfiguration");
+      std::optional<std::unique_ptr<ScreenshotConfiguration>> screenshotConfiguration =
+        screenshotConfigurationMap.has_value() ? std::make_unique<ScreenshotConfiguration>(screenshotConfigurationMap.value()) : std::optional<std::unique_ptr<ScreenshotConfiguration>>{};
+      webView->takeScreenshot(std::move(screenshotConfiguration), [result_ = std::move(result_)](const std::optional<std::string> data)
+        {
+          result_->Success(make_fl_value(data));
+        });
+    }
     // for inAppBrowser
     else if (webView->inAppBrowser && string_equals(methodName, "show")) {
       webView->inAppBrowser->show();

flutter_inappwebview_windows/windows/types/rect.cpp

@@ -0,0 +1,25 @@
+#include "rect.h"
+
+namespace flutter_inappwebview_plugin
+{
+  Rect::Rect(const double& x, const double& y, const double& width, const double& height)
+    : x(x), y(y), width(width), height(height)
+  {}
+
+  Rect::Rect(const flutter::EncodableMap& map)
+    : x(get_fl_map_value<double>(map, "x")),
+    y(get_fl_map_value<double>(map, "y")),
+    width(get_fl_map_value<double>(map, "width")),
+    height(get_fl_map_value<double>(map, "height"))
+  {}
+
+  flutter::EncodableMap Rect::toEncodableMap() const
+  {
+    return flutter::EncodableMap{
+      {"x", x},
+      {"y", y},
+      {"width", width},
+      {"height", height}
+    };
+  }
+}

flutter_inappwebview_windows/windows/types/rect.h

@@ -0,0 +1,27 @@
+#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_RECT_H_
+#define FLUTTER_INAPPWEBVIEW_PLUGIN_RECT_H_
+
+#include <flutter/standard_method_codec.h>
+#include <optional>
+
+#include "../utils/flutter.h"
+
+namespace flutter_inappwebview_plugin
+{
+  class Rect
+  {
+  public:
+    const double x;
+    const double y;
+    const double width;
+    const double height;
+
+    Rect(const double& x, const double& y, const double& width, const double& height);
+    Rect(const flutter::EncodableMap& map);
+    ~Rect() = default;
+
+    flutter::EncodableMap toEncodableMap() const;
+  };
+}
+
+#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_RECT_H_

flutter_inappwebview_windows/windows/types/screenshot_configuration.cpp

@@ -0,0 +1,48 @@
+#include "../utils/flutter.h"
+#include "../utils/map.h"
+#include "screenshot_configuration.h"
+
+namespace flutter_inappwebview_plugin
+{
+  CompressFormat CompressFormatFromString(const std::string& compressFormat)
+  {
+    if (string_equals(compressFormat, "PNG")) {
+      return CompressFormat::png;
+    }
+    else if (string_equals(compressFormat, "JPEG")) {
+      return CompressFormat::jpeg;
+    }
+    else if (string_equals(compressFormat, "WEBP")) {
+      return CompressFormat::webp;
+    }
+    return CompressFormat::png;
+  }
+
+  std::string CompressFormatToString(const CompressFormat& compressFormat)
+  {
+    switch (compressFormat) {
+    case CompressFormat::jpeg:
+      return "JPEG";
+    case CompressFormat::webp:
+      return "WEBP";
+    case CompressFormat::png:
+    default:
+      return "PNG";
+    }
+  }
+
+  ScreenshotConfiguration::ScreenshotConfiguration(
+    const CompressFormat& compressFormat,
+    const int64_t& quality,
+    const std::optional<std::shared_ptr<Rect>> rect
+  ) : compressFormat(compressFormat), quality(quality), rect(rect)
+  {}
+
+  ScreenshotConfiguration::ScreenshotConfiguration(const flutter::EncodableMap& map)
+    : compressFormat(CompressFormatFromString(get_fl_map_value<std::string>(map, "compressFormat"))),
+    quality(get_fl_map_value<int>(map, "quality")),
+    rect(fl_map_contains_not_null(map, "rect") ? std::make_shared<Rect>(get_fl_map_value<flutter::EncodableMap>(map, "rect")) : std::optional<std::shared_ptr<Rect>>{})
+  {}
+
+  ScreenshotConfiguration::~ScreenshotConfiguration() {}
+}

flutter_inappwebview_windows/windows/types/screenshot_configuration.h

@@ -0,0 +1,38 @@
+#ifndef FLUTTER_INAPPWEBVIEW_SCREENSHOT_CONFIGURATION_H_
+#define FLUTTER_INAPPWEBVIEW_SCREENSHOT_CONFIGURATION_H_
+
+#include <flutter/standard_method_codec.h>
+#include <optional>
+#include <string>
+
+#include "../types/rect.h"
+#include "../utils/string.h"
+
+namespace flutter_inappwebview_plugin
+{
+  enum CompressFormat {
+    png,
+    jpeg,
+    webp
+  };
+
+  CompressFormat CompressFormatFromString(const std::string& compressFormat);
+  std::string CompressFormatToString(const CompressFormat& compressFormat);
+
+  class ScreenshotConfiguration
+  {
+  public:
+    const CompressFormat compressFormat;
+    const int64_t quality;
+    const std::optional<std::shared_ptr<Rect>> rect;
+
+    ScreenshotConfiguration(
+      const CompressFormat& compressFormat,
+      const int64_t& quality,
+      const std::optional<std::shared_ptr<Rect>> rect
+    );
+    ScreenshotConfiguration(const flutter::EncodableMap& map);
+    ~ScreenshotConfiguration();
+  };
+}
+#endif //FLUTTER_INAPPWEBVIEW_SCREENSHOT_CONFIGURATION_H_

flutter_inappwebview_windows/windows/types/web_resource_error.cpp

@@ -3,7 +3,7 @@
 
 namespace flutter_inappwebview_plugin
 {
-  WebResourceError::WebResourceError(const std::string& description, const int type)
+  WebResourceError::WebResourceError(const std::string& description, const int64_t type)
     : description(description), type(type)
   {}
 

flutter_inappwebview_windows/windows/types/web_resource_error.h

@@ -33,9 +33,9 @@ namespace flutter_inappwebview_plugin
   {
   public:
     const std::string description;
-    const int type;
+    const int64_t type;
 
-    WebResourceError(const std::string& description, const int type);
+    WebResourceError(const std::string& description, const int64_t type);
     WebResourceError(const flutter::EncodableMap& map);
     ~WebResourceError() = default;
 

flutter_inappwebview_windows/windows/types/web_resource_response.cpp

@@ -3,7 +3,7 @@
 
 namespace flutter_inappwebview_plugin
 {
-  WebResourceResponse::WebResourceResponse(const std::optional<int>& statusCode)
+  WebResourceResponse::WebResourceResponse(const std::optional<int64_t>& statusCode)
     : statusCode(statusCode)
   {}
 

flutter_inappwebview_windows/windows/types/web_resource_response.h

@@ -9,9 +9,9 @@ namespace flutter_inappwebview_plugin
   class WebResourceResponse
   {
   public:
-    const std::optional<int> statusCode;
+    const std::optional<int64_t> statusCode;
 
-    WebResourceResponse(const std::optional<int>& statusCode);
+    WebResourceResponse(const std::optional<int64_t>& statusCode);
     WebResourceResponse(const flutter::EncodableMap& map);
     ~WebResourceResponse() = default;
 

flutter_inappwebview_windows/windows/utils/flutter.h

@@ -80,23 +80,65 @@ namespace flutter_inappwebview_plugin
     return encodableMap;
   }
 
-  template<typename T>
+  static inline bool fl_map_contains(const flutter::EncodableMap& map, const char* key)
+  {
+    return map_contains(map, make_fl_value(key));
+  }
+
+  static inline bool fl_map_contains_not_null(const flutter::EncodableMap& map, const char* key)
+  {
+    return fl_map_contains(map, key) && !map.at(make_fl_value(key)).IsNull();
+  }
+
+  template<typename T, typename std::enable_if<(!std::is_same<T, int32_t>::value && !std::is_same<T, int64_t>::value), bool>::type* = nullptr>
   static inline T get_fl_map_value(const flutter::EncodableMap& map, const char* key)
   {
     return std::get<T>(map.at(make_fl_value(key)));
   }
 
-  template<typename T, typename std::enable_if<((!is_mappish<T>::value && !is_vector<T>::value) ||
+  template<typename T, typename std::enable_if<std::is_same<T, int32_t>::value, bool>::type* = nullptr>
+  static inline int64_t get_fl_map_value(const flutter::EncodableMap& map, const char* key)
+  {
+    return map.at(make_fl_value(key)).LongValue();
+  }
+
+  template<typename T, typename std::enable_if<std::is_same<T, int64_t>::value, bool>::type* = nullptr>
+  static inline int64_t get_fl_map_value(const flutter::EncodableMap& map, const char* key)
+  {
+    return map.at(make_fl_value(key)).LongValue();
+  }
+
+  template<typename T, typename std::enable_if<((!is_mappish<T>::value && !is_vector<T>::value && !std::is_same<T, int32_t>::value && !std::is_same<T, int64_t>::value) ||
     std::is_same<T, flutter::EncodableMap>::value || std::is_same<T, flutter::EncodableList>::value), int>::type* = nullptr>
   static inline std::optional<T> get_optional_fl_map_value(const flutter::EncodableMap& map, const char* key)
   {
+    if (fl_map_contains_not_null(map, key)) {
       auto fl_key = make_fl_value(key);
-    if (map_contains<flutter::EncodableValue, flutter::EncodableValue>(map, fl_key)) {
       return make_pointer_optional<T>(std::get_if<T>(&map.at(fl_key)));
     }
     return std::nullopt;
   }
 
+  template<typename T, typename std::enable_if<std::is_same<T, int32_t>::value, bool>::type* = nullptr>
+  static inline std::optional<int64_t> get_optional_fl_map_value(const flutter::EncodableMap& map, const char* key)
+  {
+    if (fl_map_contains_not_null(map, key)) {
+      auto fl_key = make_fl_value(key);
+      return std::make_optional<int64_t>(map.at(fl_key).LongValue());
+    }
+    return std::nullopt;
+  }
+
+  template<typename T, typename std::enable_if<std::is_same<T, int64_t>::value, bool>::type* = nullptr>
+  static inline std::optional<int64_t> get_optional_fl_map_value(const flutter::EncodableMap& map, const char* key)
+  {
+    if (fl_map_contains_not_null(map, key)) {
+      auto fl_key = make_fl_value(key);
+      return std::make_optional<int64_t>(map.at(fl_key).LongValue());
+    }
+    return std::nullopt;
+  }
+
   template<typename T>
   static inline T get_fl_map_value(const flutter::EncodableMap& map, const char* key, const T& defaultValue)
   {

flutter_inappwebview_windows/windows/utils/string.h

@@ -1,6 +1,7 @@
 #ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_STRING_H_
 #define FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_STRING_H_
 
+#include <algorithm>
 #include <numeric>
 #include <optional>
 #include <string>
@@ -142,6 +143,39 @@ namespace flutter_inappwebview_plugin
     res.push_back(s.substr(pos_start));
     return res;
   }
+
+  template <typename T>
+  void to_lowercase(const std::basic_string<T>& s)
+  {
+    std::transform(s.begin(), s.end(), s.begin(),
+      [](const T v) { return static_cast<T>(std::tolower(v)); });
+  }
+
+  template <typename T>
+  std::basic_string<T> to_lowercase_copy(const std::basic_string<T>& s)
+  {
+    std::basic_string<T> s2 = s;
+    std::transform(s2.begin(), s2.end(), s2.begin(),
+      [](const T v) { return static_cast<T>(std::tolower(v)); });
+    return s2;
+  }
+
+  template <typename T>
+  void to_uppercase(const std::basic_string<T>& s)
+  {
+    std::transform(s.begin(), s.end(), s.begin(),
+      [](const T v) { return static_cast<T>(std::toupper(v)); });
+    return s2;
+  }
+
+  template <typename T>
+  std::basic_string<T> to_uppercase_copy(const std::basic_string<T>& s)
+  {
+    std::basic_string<T> s2 = s;
+    std::transform(s2.begin(), s2.end(), s2.begin(),
+      [](const T v) { return static_cast<T>(std::toupper(v)); });
+    return s2;
+  }
 }
 
 #endif //FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_STRING_H_

flutter_inappwebview_windows/windows/webview_environment/webview_environment.cpp

@@ -0,0 +1,59 @@
+#include <WebView2EnvironmentOptions.h>
+#include <wil/wrl.h>
+
+#include "../utils/log.h"
+#include "webview_environment.h"
+
+namespace flutter_inappwebview_plugin
+{
+  using namespace Microsoft::WRL;
+
+  WebViewEnvironment::WebViewEnvironment(const FlutterInappwebviewWindowsPlugin* plugin, const std::string& id)
+    : plugin(plugin), id(id),
+    channelDelegate(std::make_unique<WebViewEnvironmentChannelDelegate>(this, plugin->registrar->messenger()))
+  {}
+
+  void WebViewEnvironment::create(const std::unique_ptr<WebViewEnvironmentSettings> settings, const std::function<void(HRESULT)> completionHandler)
+  {
+    auto options = Make<CoreWebView2EnvironmentOptions>();
+    if (settings) {
+      if (settings->additionalBrowserArguments.has_value()) {
+        options->put_AdditionalBrowserArguments(utf8_to_wide(settings->additionalBrowserArguments.value()).c_str());
+      }
+      if (settings->allowSingleSignOnUsingOSPrimaryAccount.has_value()) {
+        options->put_AllowSingleSignOnUsingOSPrimaryAccount(settings->allowSingleSignOnUsingOSPrimaryAccount.value());
+      }
+      if (settings->language.has_value()) {
+        options->put_Language(utf8_to_wide(settings->language.value()).c_str());
+      }
+      if (settings->targetCompatibleBrowserVersion.has_value()) {
+        options->put_TargetCompatibleBrowserVersion(utf8_to_wide(settings->targetCompatibleBrowserVersion.value()).c_str());
+      }
+    }
+
+    auto hr = CreateCoreWebView2EnvironmentWithOptions(
+      settings && settings->browserExecutableFolder.has_value() ? utf8_to_wide(settings->browserExecutableFolder.value()).c_str() : nullptr,
+      settings && settings->userDataFolder.has_value() ? utf8_to_wide(settings->userDataFolder.value()).c_str() : nullptr,
+      options.Get(),
+      Callback<ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler>(
+        [this, completionHandler](HRESULT result, wil::com_ptr<ICoreWebView2Environment> environment) -> HRESULT
+        {
+          if (succeededOrLog(result)) {
+            env = std::move(environment);
+          }
+          if (completionHandler) {
+            completionHandler(result);
+          }
+          return S_OK;
+        }).Get());
+
+    if (failedAndLog(hr) && completionHandler) {
+      completionHandler(hr);
+    }
+  }
+
+  WebViewEnvironment::~WebViewEnvironment()
+  {
+    debugLog("dealloc WebViewEnvironment");
+  }
+}

flutter_inappwebview_windows/windows/webview_environment/webview_environment.h

@@ -0,0 +1,30 @@
+#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_WEBVIEW_ENVIRONMENT_H_
+#define FLUTTER_INAPPWEBVIEW_PLUGIN_WEBVIEW_ENVIRONMENT_H_
+
+#include <functional>
+#include <WebView2.h>
+#include <wil/com.h>
+
+#include "../flutter_inappwebview_windows_plugin.h"
+#include "webview_environment_channel_delegate.h"
+#include "webview_environment_settings.h"
+
+namespace flutter_inappwebview_plugin
+{
+  class WebViewEnvironment
+  {
+  public:
+    static inline const std::string METHOD_CHANNEL_NAME_PREFIX = "com.pichillilorenzo/flutter_webview_environment_";
+
+    const FlutterInappwebviewWindowsPlugin* plugin;
+    std::string id;
+    wil::com_ptr<ICoreWebView2Environment> env;
+    std::unique_ptr<WebViewEnvironmentChannelDelegate> channelDelegate;
+
+    WebViewEnvironment(const FlutterInappwebviewWindowsPlugin* plugin, const std::string& id);
+    ~WebViewEnvironment();
+
+    void create(const std::unique_ptr<WebViewEnvironmentSettings> settings, const std::function<void(HRESULT)> completionHandler);
+  };
+}
+#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_WEBVIEW_ENVIRONMENT_H_

flutter_inappwebview_windows/windows/webview_environment/webview_environment_channel_delegate.cpp

@@ -0,0 +1,47 @@
+#include "../utils/flutter.h"
+#include "../utils/log.h"
+#include "../utils/strconv.h"
+#include "../utils/string.h"
+#include "webview_environment.h"
+#include "webview_environment_channel_delegate.h"
+
+#include "webview_environment_manager.h"
+
+namespace flutter_inappwebview_plugin
+{
+  WebViewEnvironmentChannelDelegate::WebViewEnvironmentChannelDelegate(WebViewEnvironment* webViewEnv, flutter::BinaryMessenger* messenger)
+    : webViewEnvironment(webViewEnv), ChannelDelegate(messenger, WebViewEnvironment::METHOD_CHANNEL_NAME_PREFIX + webViewEnv->id)
+  {}
+
+  void WebViewEnvironmentChannelDelegate::HandleMethodCall(const flutter::MethodCall<flutter::EncodableValue>& method_call,
+    std::unique_ptr<flutter::MethodResult<flutter::EncodableValue>> result)
+  {
+    if (!webViewEnvironment) {
+      result->Success();
+      return;
+    }
+
+    // auto& arguments = std::get<flutter::EncodableMap>(*method_call.arguments());
+    auto& methodName = method_call.method_name();
+
+    if (string_equals(methodName, "dispose")) {
+      if (webViewEnvironment->plugin && webViewEnvironment->plugin->webViewEnvironmentManager) {
+        std::map<std::string, std::unique_ptr<WebViewEnvironment>>& webViewEnvironments = webViewEnvironment->plugin->webViewEnvironmentManager->webViewEnvironments;
+        auto& id = webViewEnvironment->id;
+        if (map_contains(webViewEnvironments, id)) {
+          webViewEnvironments.erase(id);
+        }
+      }
+      result->Success();
+    }
+    else {
+      result->NotImplemented();
+    }
+  }
+
+  WebViewEnvironmentChannelDelegate::~WebViewEnvironmentChannelDelegate()
+  {
+    debugLog("dealloc WebViewEnvironmentChannelDelegate");
+    webViewEnvironment = nullptr;
+  }
+}

flutter_inappwebview_windows/windows/webview_environment/webview_environment_channel_delegate.h

@@ -0,0 +1,25 @@
+#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_WEBVIEW_ENVIRONMENT_CHANNEL_DELEGATE_H_
+#define FLUTTER_INAPPWEBVIEW_PLUGIN_WEBVIEW_ENVIRONMENT_CHANNEL_DELEGATE_H_
+
+#include "../types/channel_delegate.h"
+#include <flutter/method_channel.h>
+
+namespace flutter_inappwebview_plugin
+{
+  class WebViewEnvironment;
+
+  class WebViewEnvironmentChannelDelegate : public ChannelDelegate
+  {
+  public:
+    WebViewEnvironment* webViewEnvironment;
+
+    WebViewEnvironmentChannelDelegate(WebViewEnvironment* webViewEnv, flutter::BinaryMessenger* messenger);
+    ~WebViewEnvironmentChannelDelegate();
+
+    void HandleMethodCall(
+      const flutter::MethodCall<flutter::EncodableValue>& method_call,
+      std::unique_ptr<flutter::MethodResult<flutter::EncodableValue>> result);
+  };
+}
+
+#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_WEBVIEW_ENVIRONMENT_CHANNEL_DELEGATE_H_

flutter_inappwebview_windows/windows/webview_environment/webview_environment_manager.cpp

@@ -0,0 +1,63 @@
+#include <DispatcherQueue.h>
+#include <flutter/method_channel.h>
+#include <flutter/standard_method_codec.h>
+
+#include "../in_app_webview/in_app_webview_settings.h"
+#include "../utils/flutter.h"
+#include "../utils/log.h"
+#include "../utils/string.h"
+#include "../utils/vector.h"
+#include "webview_environment_manager.h"
+
+namespace flutter_inappwebview_plugin
+{
+  WebViewEnvironmentManager::WebViewEnvironmentManager(const FlutterInappwebviewWindowsPlugin* plugin)
+    : plugin(plugin),
+    ChannelDelegate(plugin->registrar->messenger(), WebViewEnvironmentManager::METHOD_CHANNEL_NAME)
+  {}
+
+  void WebViewEnvironmentManager::HandleMethodCall(const flutter::MethodCall<flutter::EncodableValue>& method_call,
+    std::unique_ptr<flutter::MethodResult<flutter::EncodableValue>> result)
+  {
+    auto* arguments = std::get_if<flutter::EncodableMap>(method_call.arguments());
+    auto& methodName = method_call.method_name();
+
+    if (string_equals(methodName, "create")) {
+      auto id = get_fl_map_value<std::string>(*arguments, "id");
+      auto settingsMap = get_optional_fl_map_value<flutter::EncodableMap>(*arguments, "settings");
+      auto settings = settingsMap.has_value() ? std::make_unique<WebViewEnvironmentSettings>(settingsMap.value()) : nullptr;
+      createWebViewEnvironment(id, std::move(settings), std::move(result));
+    }
+    else {
+      result->NotImplemented();
+    }
+  }
+
+  void WebViewEnvironmentManager::createWebViewEnvironment(const std::string& id, std::unique_ptr<WebViewEnvironmentSettings> settings, std::unique_ptr<flutter::MethodResult<flutter::EncodableValue>> result)
+  {
+    auto result_ = std::shared_ptr<flutter::MethodResult<flutter::EncodableValue>>(std::move(result));
+
+    auto webViewEnvironment = std::make_unique<WebViewEnvironment>(plugin, id);
+    webViewEnvironment->create(std::move(settings),
+      [this, id, result_](HRESULT errorCode)
+      {
+        if (succeededOrLog(errorCode)) {
+          result_->Success(true);
+        }
+        else {
+          result_->Error("0", "Cannot create WebViewEnvironment: " + getHRMessage(errorCode));
+          if (map_contains(webViewEnvironments, id)) {
+            webViewEnvironments.erase(id);
+          }
+        }
+      });
+    webViewEnvironments.insert({ id, std::move(webViewEnvironment) });
+  }
+
+  WebViewEnvironmentManager::~WebViewEnvironmentManager()
+  {
+    debugLog("dealloc WebViewEnvironmentManager");
+    webViewEnvironments.clear();
+    plugin = nullptr;
+  }
+}

flutter_inappwebview_windows/windows/webview_environment/webview_environment_manager.h

@@ -0,0 +1,33 @@
+#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_WEBVIEW_ENVIRONMENT_MANAGER_H_
+#define FLUTTER_INAPPWEBVIEW_PLUGIN_WEBVIEW_ENVIRONMENT_MANAGER_H_
+
+#include <flutter/method_channel.h>
+#include <map>
+#include <string>
+#include <winrt/base.h>
+
+#include "../flutter_inappwebview_windows_plugin.h"
+#include "../types/channel_delegate.h"
+#include "webview_environment.h"
+
+namespace flutter_inappwebview_plugin
+{
+  class WebViewEnvironmentManager : public ChannelDelegate
+  {
+  public:
+    static inline const std::string METHOD_CHANNEL_NAME = "com.pichillilorenzo/flutter_webview_environment";
+
+    const FlutterInappwebviewWindowsPlugin* plugin;
+    std::map<std::string, std::unique_ptr<WebViewEnvironment>> webViewEnvironments;
+
+    WebViewEnvironmentManager(const FlutterInappwebviewWindowsPlugin* plugin);
+    ~WebViewEnvironmentManager();
+
+    void HandleMethodCall(
+      const flutter::MethodCall<flutter::EncodableValue>& method_call,
+      std::unique_ptr<flutter::MethodResult<flutter::EncodableValue>> result);
+
+    void createWebViewEnvironment(const std::string& id, std::unique_ptr<WebViewEnvironmentSettings> settings, std::unique_ptr<flutter::MethodResult<flutter::EncodableValue>> result);
+  };
+}
+#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_WEBVIEW_ENVIRONMENT_MANAGER_H_

flutter_inappwebview_windows/windows/webview_environment/webview_environment_settings.cpp

@@ -0,0 +1,27 @@
+#include "../utils/flutter.h"
+#include "webview_environment_settings.h"
+
+namespace flutter_inappwebview_plugin
+{
+  WebViewEnvironmentSettings::WebViewEnvironmentSettings(const flutter::EncodableMap& map)
+    : browserExecutableFolder(get_optional_fl_map_value<std::string>(map, "browserExecutableFolder")),
+    userDataFolder(get_optional_fl_map_value<std::string>(map, "userDataFolder")),
+    additionalBrowserArguments(get_optional_fl_map_value<std::string>(map, "additionalBrowserArguments")),
+    allowSingleSignOnUsingOSPrimaryAccount(get_optional_fl_map_value<bool>(map, "allowSingleSignOnUsingOSPrimaryAccount")),
+    language(get_optional_fl_map_value<std::string>(map, "language")),
+    targetCompatibleBrowserVersion(get_optional_fl_map_value<std::string>(map, "targetCompatibleBrowserVersion"))
+  {}
+
+  flutter::EncodableMap WebViewEnvironmentSettings::toEncodableMap() const
+  {
+    return flutter::EncodableMap{
+      {"browserExecutableFolder", make_fl_value(browserExecutableFolder)},
+      {"userDataFolder", make_fl_value(userDataFolder)},
+      {"additionalBrowserArguments", make_fl_value(additionalBrowserArguments)},
+      {"allowSingleSignOnUsingOSPrimaryAccount", make_fl_value(allowSingleSignOnUsingOSPrimaryAccount)},
+      {"language", make_fl_value(language)},
+      {"targetCompatibleBrowserVersion", make_fl_value(targetCompatibleBrowserVersion)}
+    };
+  }
+
+}

flutter_inappwebview_windows/windows/webview_environment/webview_environment_settings.h

@@ -0,0 +1,29 @@
+#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_WEBVIEW_ENVIRONMENT_CREATION_PARAMS_H_
+#define FLUTTER_INAPPWEBVIEW_PLUGIN_WEBVIEW_ENVIRONMENT_CREATION_PARAMS_H_
+
+#include <flutter/standard_method_codec.h>
+#include <optional>
+#include <string>
+
+#include "../flutter_inappwebview_windows_plugin.h"
+
+namespace flutter_inappwebview_plugin
+{
+  class WebViewEnvironmentSettings
+  {
+  public:
+    const std::optional<std::string> browserExecutableFolder;
+    const std::optional<std::string> userDataFolder;
+    const std::optional<std::string> additionalBrowserArguments;
+    const std::optional<bool> allowSingleSignOnUsingOSPrimaryAccount;
+    const std::optional<std::string> language;
+    const std::optional<std::string> targetCompatibleBrowserVersion;
+
+    WebViewEnvironmentSettings() = default;
+    WebViewEnvironmentSettings(const flutter::EncodableMap& map);
+    ~WebViewEnvironmentSettings() = default;
+
+    flutter::EncodableMap toEncodableMap() const;
+  };
+}
+#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_WEBVIEW_ENVIRONMENT_CREATION_PARAMS_H_