windows: Implemented shouldInterceptRequest, onLoadResourceWithCustom…

…Scheme WebView events, platform interface: Added WebViewEnvironment.customSchemeRegistrations parameter for Windows, Added CustomSchemeRegistration type

flutter_inappwebview/example/lib/main.dart

@@ -25,12 +25,11 @@ Future main() async {
 
   if (!kIsWeb && defaultTargetPlatform == TargetPlatform.windows) {
     final availableVersion = await WebViewEnvironment.getAvailableVersion();
-    assert(availableVersion != null, 'Failed to find an installed WebView2 runtime or non-stable Microsoft Edge installation.');
+    assert(availableVersion != null,
+        'Failed to find an installed WebView2 runtime or non-stable Microsoft Edge installation.');
 
-    webViewEnvironment = await WebViewEnvironment.create(settings:
-      WebViewEnvironmentSettings(
-          userDataFolder: 'custom_path'
-      ));
+    webViewEnvironment = await WebViewEnvironment.create(
+        settings: WebViewEnvironmentSettings(userDataFolder: 'custom_path'));
   }
 
   if (!kIsWeb && defaultTargetPlatform == TargetPlatform.android) {

flutter_inappwebview_platform_interface/CHANGELOG.md

@@ -1,3 +1,9 @@
+## 1.3.0
+
+- Added `WebViewEnvironment.customSchemeRegistrations` parameter for Windows
+- Added `CustomSchemeRegistration` type
+- Updated docs
+
 ## 1.2.0
 
 - Updated `Uint8List` conversion inside `fromMap` methods

flutter_inappwebview_platform_interface/lib/src/in_app_browser/platform_in_app_browser.dart

@@ -698,6 +698,7 @@ abstract class PlatformInAppBrowserEvents {
   ///- Android native WebView
   ///- iOS ([Official API - WKURLSchemeHandler](https://developer.apple.com/documentation/webkit/wkurlschemehandler))
   ///- MacOS ([Official API - WKURLSchemeHandler](https://developer.apple.com/documentation/webkit/wkurlschemehandler))
+  ///- Windows
   Future<CustomSchemeResponse?>? onLoadResourceWithCustomScheme(
       WebResourceRequest request) {
     return null;
@@ -1149,6 +1150,7 @@ abstract class PlatformInAppBrowserEvents {
   ///
   ///**Officially Supported Platforms/Implementations**:
   ///- Android native WebView ([Official API - WebViewClient.shouldInterceptRequest](https://developer.android.com/reference/android/webkit/WebViewClient#shouldInterceptRequest(android.webkit.WebView,%20android.webkit.WebResourceRequest)))
+  ///- Windows ([ICoreWebView2.add_WebResourceRequested](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2478.35#add_webresourcerequested))
   Future<WebResourceResponse?>? shouldInterceptRequest(
       WebResourceRequest request) {
     return null;

flutter_inappwebview_platform_interface/lib/src/in_app_webview/platform_webview.dart

@@ -229,6 +229,7 @@ class PlatformWebViewCreationParams<T> {
   ///- Android native WebView
   ///- iOS ([Official API - WKURLSchemeHandler](https://developer.apple.com/documentation/webkit/wkurlschemehandler))
   ///- MacOS ([Official API - WKURLSchemeHandler](https://developer.apple.com/documentation/webkit/wkurlschemehandler))
+  ///- Windows
   ///{@endtemplate}
   final Future<CustomSchemeResponse?> Function(
       T controller, WebResourceRequest request)? onLoadResourceWithCustomScheme;
@@ -745,6 +746,7 @@ class PlatformWebViewCreationParams<T> {
   ///
   ///**Officially Supported Platforms/Implementations**:
   ///- Android native WebView ([Official API - WebViewClient.shouldInterceptRequest](https://developer.android.com/reference/android/webkit/WebViewClient#shouldInterceptRequest(android.webkit.WebView,%20android.webkit.WebResourceRequest)))
+  ///- Windows ([ICoreWebView2.add_WebResourceRequested](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2478.35#add_webresourcerequested))
   ///{@endtemplate}
   final Future<WebResourceResponse?> Function(
       T controller, WebResourceRequest request)? shouldInterceptRequest;

flutter_inappwebview_platform_interface/lib/src/types/custom_scheme_registration.dart

@@ -0,0 +1,26 @@
+import 'package:flutter_inappwebview_internal_annotations/flutter_inappwebview_internal_annotations.dart';
+
+import '../webview_environment/webview_environment_settings.dart';
+
+part 'custom_scheme_registration.g.dart';
+
+///Class that represents the registration of a custom scheme for [WebViewEnvironmentSettings] method.
+@SupportedPlatforms(platforms: [WindowsPlatform()])
+@ExchangeableObject()
+class CustomSchemeRegistration_ {
+  ///The name of the custom scheme to register.
+  String scheme;
+
+  ///List of origins that are allowed to issue requests with the custom scheme, such as XHRs and subresource requests that have an Origin header.
+  List<String>? allowedOrigins;
+
+  ///Whether the sites with this scheme will be treated as a Secure Context like an HTTPS site.
+  ///This flag is only effective when [hasAuthorityComponent] is also set to `true`. `false` by default.
+  bool? treatAsSecure;
+
+  ///Set this property to `true` if the URIs with this custom scheme will have an authority component (a host for custom schemes).
+  ///Specifically, if you have a URI of the following form you should set the HasAuthorityComponent value as listed.
+  bool? hasAuthorityComponent;
+
+  CustomSchemeRegistration_({required this.scheme, this.allowedOrigins, this.treatAsSecure, this.hasAuthorityComponent});
+}

flutter_inappwebview_platform_interface/lib/src/types/main.dart

@@ -225,4 +225,6 @@ export 'tracing_mode.dart' show TracingMode;
 export 'tracing_category.dart' show TracingCategory;
 export 'custom_tabs_post_message_result_type.dart'
     show CustomTabsPostMessageResultType;
+export 'custom_scheme_registration.dart'
+    show CustomSchemeRegistration;
 export 'disposable.dart';

flutter_inappwebview_platform_interface/lib/src/webview_environment/webview_environment_settings.dart

@@ -1,6 +1,7 @@
 import 'package:flutter_inappwebview_internal_annotations/flutter_inappwebview_internal_annotations.dart';
 
 import 'platform_webview_environment.dart';
+import '../types/custom_scheme_registration.dart';
 
 part 'webview_environment_settings.g.dart';
 
@@ -100,11 +101,22 @@ class WebViewEnvironmentSettings_ {
   ])
   final String? targetCompatibleBrowserVersion;
 
+  ///Set the array of custom scheme registrations to be used.
+  @SupportedPlatforms(platforms: [
+    WindowsPlatform(
+        apiName:
+        'ICoreWebView2EnvironmentOptions4.SetCustomSchemeRegistrations',
+        apiUrl:
+        'https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2environmentoptions4?view=webview2-1.0.2739.15#setcustomschemeregistrations')
+  ])
+  final List<CustomSchemeRegistration_>? customSchemeRegistrations;
+
   WebViewEnvironmentSettings_(
       {this.browserExecutableFolder,
       this.userDataFolder,
       this.additionalBrowserArguments,
       this.allowSingleSignOnUsingOSPrimaryAccount,
       this.language,
-      this.targetCompatibleBrowserVersion});
+      this.targetCompatibleBrowserVersion,
+      this.customSchemeRegistrations});
 }

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: 1.2.0
+version: 1.3.0
 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/CHANGELOG.md

@@ -1,3 +1,8 @@
+## 0.5.0
+
+- Implemented `shouldInterceptRequest`, `onLoadResourceWithCustomScheme` WebView events
+- Updated flutter_inappwebview_platform_interface version to ^1.3.0
+
 ## 0.4.1
 
 - Implemented `incognito` for `InAppWebViewSettings`

flutter_inappwebview_windows/pubspec.yaml

@@ -1,6 +1,6 @@
 name: flutter_inappwebview_windows
 description: Windows implementation of the flutter_inappwebview plugin.
-version: 0.4.1
+version: 0.5.0
 homepage: https://inappwebview.dev/
 repository: https://github.com/pichillilorenzo/flutter_inappwebview/tree/master/flutter_inappwebview_windows
 issue_tracker: https://github.com/pichillilorenzo/flutter_inappwebview/issues

flutter_inappwebview_windows/windows/CMakeLists.txt

@@ -89,6 +89,10 @@ list(APPEND PLUGIN_SOURCES
   "types/ssl_certificate.h"
   "types/permission_response.cpp"
   "types/permission_response.h"
+  "types/custom_scheme_response.cpp"
+  "types/custom_scheme_response.h"
+  "types/custom_scheme_registration.cpp"
+  "types/custom_scheme_registration.h"
   "custom_platform_view/custom_platform_view.cc"
   "custom_platform_view/custom_platform_view.h"
   "custom_platform_view/texture_bridge.cc"
@@ -175,7 +179,19 @@ endif()
 # Apply a standard set of build settings that are configured in the
 # application-level CMakeLists.txt. This can be removed for plugins that want
 # full control over build settings.
-apply_standard_settings(${PLUGIN_NAME})
+# apply_standard_settings(${PLUGIN_NAME})
+#
+# IMPORTANT: The apply_standard_settings function is not used here because it
+# is causing the plugin to fail to compile because of the usage of /WX flag.
+# So, creating here a custom function to apply the standard settings without the /WX flag.
+function(FLUTTER_INAPPWEBVIEW_WINDOWS_APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_17)
+  target_compile_options(${TARGET} PRIVATE /W4 /wd"4100")
+  target_compile_options(${TARGET} PRIVATE /EHsc)
+  target_compile_definitions(${TARGET} PRIVATE "_HAS_EXCEPTIONS=0")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<CONFIG:Debug>:_DEBUG>")
+endfunction()
+flutter_inappwebview_windows_apply_standard_settings(${PLUGIN_NAME})
 
 target_link_libraries(${PLUGIN_NAME} PRIVATE ${CMAKE_BINARY_DIR}/packages/Microsoft.Web.WebView2/build/native/Microsoft.Web.WebView2.targets)
 target_link_libraries(${PLUGIN_NAME} PRIVATE ${CMAKE_BINARY_DIR}/packages/Microsoft.Windows.ImplementationLibrary/build/native/Microsoft.Windows.ImplementationLibrary.targets)