windows: completed initial javascript handler communication and user scripts support, added support for loadFile and loadData

flutter_inappwebview_platform_interface/lib/src/in_app_browser/platform_in_app_browser.dart

@@ -518,7 +518,7 @@ abstract class PlatformInAppBrowserEvents {
   ///- Android native WebView ([Official API - WebViewClient.onPageStarted](https://developer.android.com/reference/android/webkit/WebViewClient#onPageStarted(android.webkit.WebView,%20java.lang.String,%20android.graphics.Bitmap)))
   ///- iOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455621-webview))
   ///- MacOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455621-webview))
-  ///- Windows ([Official API - IWebView2WebView.add_NavigationStarting](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationstarting))
+  ///- Windows ([Official API - ICoreWebView2.add_NavigationStarting](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationstarting))
   void onLoadStart(WebUri? url) {}
 
   ///Event fired when the [PlatformInAppBrowser] finishes loading an [url].
@@ -527,7 +527,7 @@ abstract class PlatformInAppBrowserEvents {
   ///- Android native WebView ([Official API - WebViewClient.onPageFinished](https://developer.android.com/reference/android/webkit/WebViewClient#onPageFinished(android.webkit.WebView,%20java.lang.String)))
   ///- iOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455629-webview))
   ///- MacOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455629-webview))
-  ///- Windows ([Official API - IWebView2WebView.add_NavigationCompleted](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationcompleted))
+  ///- Windows ([Official API - ICoreWebView2.add_NavigationCompleted](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationcompleted))
   void onLoadStop(WebUri? url) {}
 
   ///Use [onReceivedError] instead.
@@ -540,7 +540,7 @@ abstract class PlatformInAppBrowserEvents {
   ///- Android native WebView ([Official API - WebViewClient.onReceivedError](https://developer.android.com/reference/android/webkit/WebViewClient#onReceivedError(android.webkit.WebView,%20android.webkit.WebResourceRequest,%20android.webkit.WebResourceError)))
   ///- iOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455623-webview))
   ///- MacOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455623-webview))
-  ///- Windows ([Official API - IWebView2WebView.add_NavigationCompleted](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationcompleted))
+  ///- Windows ([Official API - ICoreWebView2.add_NavigationCompleted](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationcompleted))
   void onReceivedError(WebResourceRequest request, WebResourceError error) {}
 
   ///Use [onReceivedHttpError] instead.
@@ -559,7 +559,7 @@ abstract class PlatformInAppBrowserEvents {
   ///- Android native WebView ([Official API - WebViewClient.onReceivedHttpError](https://developer.android.com/reference/android/webkit/WebViewClient#onReceivedHttpError(android.webkit.WebView,%20android.webkit.WebResourceRequest,%20android.webkit.WebResourceResponse)))
   ///- iOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455643-webview))
   ///- MacOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455643-webview))
-  ///- Windows ([Official API - IWebView2WebView.add_NavigationCompleted](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationcompleted))
+  ///- Windows ([Official API - ICoreWebView2.add_NavigationCompleted](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationcompleted))
   void onReceivedHttpError(
       WebResourceRequest request, WebResourceResponse errorResponse) {}
 
@@ -899,7 +899,7 @@ abstract class PlatformInAppBrowserEvents {
   ///- Android native WebView ([Official API - WebViewClient.doUpdateVisitedHistory](https://developer.android.com/reference/android/webkit/WebViewClient#doUpdateVisitedHistory(android.webkit.WebView,%20java.lang.String,%20boolean)))
   ///- iOS
   ///- MacOS
-  ///- Windows ([Official API - IWebView2WebView.add_HistoryChanged](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#add_historychanged))
+  ///- Windows ([Official API - ICoreWebView2.add_HistoryChanged](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#add_historychanged))
   void onUpdateVisitedHistory(WebUri? url, bool? isReload) {}
 
   ///Use [onPrintRequest] instead
@@ -969,7 +969,7 @@ abstract class PlatformInAppBrowserEvents {
   ///- Android native WebView ([Official API - WebChromeClient.onReceivedTitle](https://developer.android.com/reference/android/webkit/WebChromeClient#onReceivedTitle(android.webkit.WebView,%20java.lang.String)))
   ///- iOS
   ///- MacOS
-  ///- Windows ([Official API - IWebView2WebView.add_DocumentTitleChanged](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#add_documenttitlechanged))
+  ///- Windows ([Official API - ICoreWebView2.add_DocumentTitleChanged](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#add_documenttitlechanged))
   void onTitleChanged(String? title) {}
 
   ///Event fired to respond to the results of an over-scroll operation.

flutter_inappwebview_platform_interface/lib/src/in_app_webview/platform_inappwebview_controller.dart

@@ -134,7 +134,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- iOS ([Official API - WKWebView.url](https://developer.apple.com/documentation/webkit/wkwebview/1415005-url))
   ///- MacOS ([Official API - WKWebView.url](https://developer.apple.com/documentation/webkit/wkwebview/1415005-url))
   ///- Web
-  ///- Windows ([Official API - IWebView2WebView.get_Source](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#get_source))
+  ///- Windows ([Official API - ICoreWebView2.get_Source](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#get_source))
   ///{@endtemplate}
   Future<WebUri?> getUrl() {
     throw UnimplementedError(
@@ -151,7 +151,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- iOS ([Official API - WKWebView.title](https://developer.apple.com/documentation/webkit/wkwebview/1415015-title))
   ///- MacOS ([Official API - WKWebView.title](https://developer.apple.com/documentation/webkit/wkwebview/1415015-title))
   ///- Web
-  ///- Windows ([Official API - IWebView2WebView.get_DocumentTitle](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#get_documenttitle))
+  ///- Windows ([Official API - ICoreWebView2.get_DocumentTitle](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#get_documenttitle))
   ///{@endtemplate}
   Future<String?> getTitle() {
     throw UnimplementedError(
@@ -274,11 +274,14 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///Specify a directory to give WebView permission to read additional files in the specified directory.
   ///**NOTE**: available only on iOS and MacOS.
   ///
+  ///**NOTE for Windows**: only the [data] parameter is used.
+  ///
   ///**Officially Supported Platforms/Implementations**:
   ///- Android native WebView ([Official API - WebView.loadDataWithBaseURL](https://developer.android.com/reference/android/webkit/WebView#loadDataWithBaseURL(java.lang.String,%20java.lang.String,%20java.lang.String,%20java.lang.String,%20java.lang.String)))
   ///- iOS ([Official API - WKWebView.loadHTMLString](https://developer.apple.com/documentation/webkit/wkwebview/1415004-loadhtmlstring) or [Official API - WKWebView.load](https://developer.apple.com/documentation/webkit/wkwebview/1415011-load))
   ///- MacOS ([Official API - WKWebView.loadHTMLString](https://developer.apple.com/documentation/webkit/wkwebview/1415004-loadhtmlstring) or [Official API - WKWebView.load](https://developer.apple.com/documentation/webkit/wkwebview/1415011-load))
   ///- Web
+  ///- Windows ([Official API - ICoreWebView2.NavigateToString](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#navigatetostring))
   ///{@endtemplate}
   Future<void> loadData(
       {required String data,
@@ -330,6 +333,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- iOS ([Official API - WKWebView.load](https://developer.apple.com/documentation/webkit/wkwebview/1414954-load))
   ///- MacOS ([Official API - WKWebView.load](https://developer.apple.com/documentation/webkit/wkwebview/1414954-load))
   ///- Web
+  ///- Windows ([Official API - ICoreWebView2.Navigate](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#navigate))
   ///{@endtemplate}
   Future<void> loadFile({required String assetFilePath}) {
     throw UnimplementedError(
@@ -346,7 +350,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- iOS ([Official API - WKWebView.reload](https://developer.apple.com/documentation/webkit/wkwebview/1414969-reload))
   ///- MacOS ([Official API - WKWebView.reload](https://developer.apple.com/documentation/webkit/wkwebview/1414969-reload))
   ///- Web ([Official API - Location.reload](https://developer.mozilla.org/en-US/docs/Web/API/Location/reload))
-  ///- Windows ([Official API - IWebView2WebView.Reload](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#reload))
+  ///- Windows ([Official API - ICoreWebView2.Reload](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#reload))
   ///{@endtemplate}
   Future<void> reload() {
     throw UnimplementedError(
@@ -363,7 +367,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- iOS ([Official API - WKWebView.goBack](https://developer.apple.com/documentation/webkit/wkwebview/1414952-goback))
   ///- MacOS ([Official API - WKWebView.goBack](https://developer.apple.com/documentation/webkit/wkwebview/1414952-goback))
   ///- Web ([Official API - History.back](https://developer.mozilla.org/en-US/docs/Web/API/History/back))
-  ///- Windows ([Official API - IWebView2WebView.GoBack](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#goback))
+  ///- Windows ([Official API - ICoreWebView2.GoBack](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#goback))
   ///{@endtemplate}
   Future<void> goBack() {
     throw UnimplementedError(
@@ -377,7 +381,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- Android native WebView ([Official API - WebView.canGoBack](https://developer.android.com/reference/android/webkit/WebView#canGoBack()))
   ///- iOS ([Official API - WKWebView.canGoBack](https://developer.apple.com/documentation/webkit/wkwebview/1414966-cangoback))
   ///- MacOS ([Official API - WKWebView.canGoBack](https://developer.apple.com/documentation/webkit/wkwebview/1414966-cangoback))
-  ///- Windows ([Official API - IWebView2WebView.get_CanGoBack](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#get_cangoback))
+  ///- Windows ([Official API - ICoreWebView2.get_CanGoBack](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#get_cangoback))
   ///{@endtemplate}
   Future<bool> canGoBack() {
     throw UnimplementedError(
@@ -394,7 +398,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- iOS ([Official API - WKWebView.goForward](https://developer.apple.com/documentation/webkit/wkwebview/1414993-goforward))
   ///- MacOS ([Official API - WKWebView.goForward](https://developer.apple.com/documentation/webkit/wkwebview/1414993-goforward))
   ///- Web ([Official API - History.forward](https://developer.mozilla.org/en-US/docs/Web/API/History/forward))
-  ///- Windows ([Official API - IWebView2WebView.GoForward](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#goforward))
+  ///- Windows ([Official API - ICoreWebView2.GoForward](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#goforward))
   ///{@endtemplate}
   Future<void> goForward() {
     throw UnimplementedError(
@@ -408,7 +412,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- Android native WebView ([Official API - WebView.canGoForward](https://developer.android.com/reference/android/webkit/WebView#canGoForward()))
   ///- iOS ([Official API - WKWebView.canGoForward](https://developer.apple.com/documentation/webkit/wkwebview/1414962-cangoforward))
   ///- MacOS ([Official API - WKWebView.canGoForward](https://developer.apple.com/documentation/webkit/wkwebview/1414962-cangoforward))
-  ///- Windows ([Official API - IWebView2WebView.get_CanGoForward](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#get_cangoforward))
+  ///- Windows ([Official API - ICoreWebView2.get_CanGoForward](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#get_cangoforward))
   ///{@endtemplate}
   Future<bool> canGoForward() {
     throw UnimplementedError(
@@ -487,7 +491,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- iOS ([Official API - WKWebView.stopLoading](https://developer.apple.com/documentation/webkit/wkwebview/1414981-stoploading))
   ///- MacOS ([Official API - WKWebView.stopLoading](https://developer.apple.com/documentation/webkit/wkwebview/1414981-stoploading))
   ///- Web ([Official API - Window.stop](https://developer.mozilla.org/en-US/docs/Web/API/Window/stop))
-  ///- Windows ([Official API - IWebView2WebView.Stop](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#stop))
+  ///- Windows ([Official API - ICoreWebView2.Stop](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#stop))
   ///{@endtemplate}
   Future<void> stopLoading() {
     throw UnimplementedError(
@@ -517,7 +521,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- iOS ([Official API - WKWebView.evaluateJavascript](https://developer.apple.com/documentation/webkit/wkwebview/3656442-evaluatejavascript))
   ///- MacOS ([Official API - WKWebView.evaluateJavascript](https://developer.apple.com/documentation/webkit/wkwebview/3656442-evaluatejavascript))
   ///- Web ([Official API - Window.eval](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/eval?retiredLocale=it))
-  ///- Windows ([Official API - IWebView2WebView.ExecuteScript](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#executescript))
+  ///- Windows ([Official API - ICoreWebView2.ExecuteScript](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#executescript))
   ///{@endtemplate}
   Future<dynamic> evaluateJavascript(
       {required String source, ContentWorld? contentWorld}) {
@@ -1189,6 +1193,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- Android native WebView
   ///- iOS ([Official API - WKUserContentController.addUserScript](https://developer.apple.com/documentation/webkit/wkusercontentcontroller/1537448-adduserscript))
   ///- MacOS ([Official API - WKUserContentController.addUserScript](https://developer.apple.com/documentation/webkit/wkusercontentcontroller/1537448-adduserscript))
+  ///- Windows
   ///{@endtemplate}
   Future<void> addUserScript({required UserScript userScript}) {
     throw UnimplementedError(
@@ -1206,6 +1211,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- Android native WebView
   ///- iOS
   ///- MacOS
+  ///- Windows
   ///{@endtemplate}
   Future<void> addUserScripts({required List<UserScript> userScripts}) {
     throw UnimplementedError(
@@ -1225,6 +1231,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- Android native WebView
   ///- iOS
   ///- MacOS
+  ///- Windows
   ///{@endtemplate}
   Future<bool> removeUserScript({required UserScript userScript}) {
     throw UnimplementedError(
@@ -1243,6 +1250,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- Android native WebView
   ///- iOS
   ///- MacOS
+  ///- Windows
   ///{@endtemplate}
   Future<void> removeUserScriptsByGroupName({required String groupName}) {
     throw UnimplementedError(
@@ -1261,6 +1269,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- Android native WebView
   ///- iOS
   ///- MacOS
+  ///- Windows
   ///{@endtemplate}
   Future<void> removeUserScripts({required List<UserScript> userScripts}) {
     throw UnimplementedError(
@@ -1278,6 +1287,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- Android native WebView
   ///- iOS ([Official API - WKUserContentController.removeAllUserScripts](https://developer.apple.com/documentation/webkit/wkusercontentcontroller/1536540-removealluserscripts))
   ///- MacOS ([Official API - WKUserContentController.removeAllUserScripts](https://developer.apple.com/documentation/webkit/wkusercontentcontroller/1536540-removealluserscripts))
+  ///- Windows
   ///{@endtemplate}
   Future<void> removeAllUserScripts() {
     throw UnimplementedError(
@@ -1291,6 +1301,7 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
   ///- Android native WebView
   ///- iOS
   ///- MacOS
+  ///- Windows
   ///{@endtemplate}
   bool hasUserScript({required UserScript userScript}) {
     throw UnimplementedError(

flutter_inappwebview_platform_interface/lib/src/in_app_webview/platform_webview.dart

@@ -55,7 +55,7 @@ class PlatformWebViewCreationParams<T> {
   ///- iOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455621-webview))
   ///- MacOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455621-webview))
   ///- Web
-  ///- Windows ([Official API - IWebView2WebView.add_NavigationStarting](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationstarting))
+  ///- Windows ([Official API - ICoreWebView2.add_NavigationStarting](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationstarting))
   ///{@endtemplate}
   final void Function(T controller, WebUri? url)? onLoadStart;
 
@@ -70,7 +70,7 @@ class PlatformWebViewCreationParams<T> {
   ///- iOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455629-webview))
   ///- MacOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455629-webview))
   ///- Web ([Official API - Window.onload](https://developer.mozilla.org/en-US/docs/Web/API/Window/load_event))
-  ///- Windows ([Official API - IWebView2WebView.add_NavigationCompleted](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationcompleted))
+  ///- Windows ([Official API - ICoreWebView2.add_NavigationCompleted](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationcompleted))
   ///{@endtemplate}
   final void Function(T controller, WebUri? url)? onLoadStop;
 
@@ -86,7 +86,7 @@ class PlatformWebViewCreationParams<T> {
   ///- Android native WebView ([Official API - WebViewClient.onReceivedError](https://developer.android.com/reference/android/webkit/WebViewClient#onReceivedError(android.webkit.WebView,%20android.webkit.WebResourceRequest,%20android.webkit.WebResourceError)))
   ///- iOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455623-webview))
   ///- MacOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455623-webview))
-  ///- Windows ([Official API - IWebView2WebView.add_NavigationCompleted](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationcompleted))
+  ///- Windows ([Official API - ICoreWebView2.add_NavigationCompleted](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationcompleted))
   ///{@endtemplate}
   final void Function(
           T controller, WebResourceRequest request, WebResourceError error)?
@@ -111,7 +111,7 @@ class PlatformWebViewCreationParams<T> {
   ///- Android native WebView ([Official API - WebViewClient.onReceivedHttpError](https://developer.android.com/reference/android/webkit/WebViewClient#onReceivedHttpError(android.webkit.WebView,%20android.webkit.WebResourceRequest,%20android.webkit.WebResourceResponse)))
   ///- iOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455643-webview))
   ///- MacOS ([Official API - WKNavigationDelegate.webView](https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455643-webview))
-  ///- Windows ([Official API - IWebView2WebView.add_NavigationCompleted](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationcompleted))
+  ///- Windows ([Official API - ICoreWebView2.add_NavigationCompleted](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/iwebview2webview?view=webview2-0.8.355#add_navigationcompleted))
   ///{@endtemplate}
   final void Function(T controller, WebResourceRequest request,
       WebResourceResponse errorResponse)? onReceivedHttpError;
@@ -504,7 +504,7 @@ class PlatformWebViewCreationParams<T> {
   ///- iOS
   ///- MacOS
   ///- Web
-  ///- Windows ([Official API - IWebView2WebView.add_HistoryChanged](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#add_historychanged))
+  ///- Windows ([Official API - ICoreWebView2.add_HistoryChanged](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#add_historychanged))
   ///{@endtemplate}
   final void Function(T controller, WebUri? url, bool? isReload)?
       onUpdateVisitedHistory;
@@ -599,7 +599,7 @@ class PlatformWebViewCreationParams<T> {
   ///- iOS
   ///- MacOS
   ///- Web
-  ///- Windows ([Official API - IWebView2WebView.add_DocumentTitleChanged](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#add_documenttitlechanged))
+  ///- Windows ([Official API - ICoreWebView2.add_DocumentTitleChanged](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2?view=webview2-1.0.2210.55#add_documenttitlechanged))
   ///{@endtemplate}
   final void Function(T controller, String? title)? onTitleChanged;
 
@@ -1059,6 +1059,7 @@ class PlatformWebViewCreationParams<T> {
   ///- iOS
   ///- MacOS
   ///- Web
+  ///- Windows
   ///{@endtemplate}
   final URLRequest? initialUrlRequest;
 
@@ -1070,6 +1071,7 @@ class PlatformWebViewCreationParams<T> {
   ///- iOS
   ///- MacOS
   ///- Web
+  ///- Windows
   ///{@endtemplate}
   final String? initialFile;
 
@@ -1081,6 +1083,7 @@ class PlatformWebViewCreationParams<T> {
   ///- iOS
   ///- MacOS
   ///- Web
+  ///- Windows
   ///{@endtemplate}
   final InAppWebViewInitialData? initialData;
 

flutter_inappwebview_windows/windows/CMakeLists.txt

@@ -44,6 +44,7 @@ list(APPEND PLUGIN_SOURCES
   "utils/strconv.h"
   "utils/map.h"
   "utils/vector.h"
+  "utils/string.h"
   "utils/util.h"
   "utils/flutter.h"
   "types/channel_delegate.cpp"
@@ -80,6 +81,7 @@ list(APPEND PLUGIN_SOURCES
   "custom_platform_view/util/string_converter.cc"
   "custom_platform_view/util/string_converter.h"
   "custom_platform_view/util/swizzle.h"
+  "plugin_scripts_js/plugin_scripts_util.h"
   "plugin_scripts_js/javascript_bridge_js.cpp"
   "plugin_scripts_js/javascript_bridge_js.h"
   "in_app_webview/user_content_controller.cpp"

flutter_inappwebview_windows/windows/in_app_browser/in_app_browser.h

@@ -18,7 +18,7 @@ namespace flutter_inappwebview_plugin
   struct InAppBrowserCreationParams
   {
     const std::string id;
-    const std::optional<URLRequest> urlRequest;
+    const std::optional<std::shared_ptr<URLRequest>> urlRequest;
     const std::shared_ptr<InAppBrowserSettings> initialSettings;
     const std::shared_ptr<InAppWebViewSettings> initialWebViewSettings;
   };
@@ -35,7 +35,7 @@ namespace flutter_inappwebview_plugin
 
     const FlutterInappwebviewWindowsPlugin* plugin;
     const std::string id;
-    const std::optional<URLRequest> initialUrlRequest;
+    const std::optional<std::shared_ptr<URLRequest>> initialUrlRequest;
     std::unique_ptr<InAppWebView> webView;
     std::unique_ptr<InAppBrowserChannelDelegate> channelDelegate;
     const std::shared_ptr<InAppBrowserSettings> settings;

flutter_inappwebview_windows/windows/in_app_browser/in_app_browser_manager.cpp

@@ -31,7 +31,7 @@ namespace flutter_inappwebview_plugin
   {
     auto id = get_fl_map_value<std::string>(*arguments, "id");
     auto urlRequestMap = get_optional_fl_map_value<flutter::EncodableMap>(*arguments, "urlRequest");
-    std::optional<URLRequest> urlRequest = urlRequestMap.has_value() ? std::make_optional<URLRequest>(urlRequestMap.value()) : std::optional<URLRequest>{};
+    std::optional<std::shared_ptr<URLRequest>> urlRequest = urlRequestMap.has_value() ? std::make_shared<URLRequest>(urlRequestMap.value()) : std::optional<std::shared_ptr<URLRequest>>{};
 
     auto settingsMap = get_fl_map_value<flutter::EncodableMap>(*arguments, "settings");
     auto initialSettings = std::make_unique<InAppBrowserSettings>(settingsMap);

flutter_inappwebview_windows/windows/in_app_webview/in_app_webview.cpp

@@ -1,4 +1,5 @@
 #include <cstring>
+#include <filesystem>
 #include <nlohmann/json.hpp>
 #include <Shlwapi.h>
 #include <WebView2EnvironmentOptions.h>
@@ -9,7 +10,9 @@
 #include "../types/web_resource_error.h"
 #include "../types/web_resource_request.h"
 #include "../utils/log.h"
+#include "../utils/map.h"
 #include "../utils/strconv.h"
+#include "../utils/string.h"
 #include "in_app_webview.h"
 #include "in_app_webview_manager.h"
 
@@ -246,14 +249,14 @@ namespace flutter_inappwebview_plugin
               {
                 callShouldOverrideUrlLoading_ = false;
                 if (actionPolicy == NavigationActionPolicy::allow) {
-                  loadUrl(*urlRequest);
+                  loadUrl(urlRequest);
                 }
                 return false;
               };
-            auto defaultBehaviour = [this, urlRequest](const std::optional<NavigationActionPolicy> actionPolicy)
+            auto defaultBehaviour = [this, urlRequest](const std::optional<const NavigationActionPolicy> actionPolicy)
               {
                 callShouldOverrideUrlLoading_ = false;
-                loadUrl(*urlRequest);
+                loadUrl(urlRequest);
               };
             callback->defaultBehaviour = defaultBehaviour;
             callback->error = [defaultBehaviour](const std::string& error_code, const std::string& error_message, const flutter::EncodableValue* error_details)
@@ -280,6 +283,11 @@ namespace flutter_inappwebview_plugin
         {
           isLoading_ = false;
 
+          if (userContentController) {
+            evaluateJavascript(userContentController->generateWrappedCodeForDocumentEnd(), nullptr);
+          }
+          evaluateJavascript(PLATFORM_READY_JS_SOURCE, nullptr);
+
           std::shared_ptr<NavigationAction> navigationAction;
           UINT64 navigationId;
           if (SUCCEEDED(args->get_NavigationId(&navigationId))) {
@@ -349,12 +357,61 @@ namespace flutter_inappwebview_plugin
     failedLog(webView->add_WebMessageReceived(Callback<ICoreWebView2WebMessageReceivedEventHandler>(
       [this](ICoreWebView2* sender, ICoreWebView2WebMessageReceivedEventArgs* args)
       {
-        wil::unique_cotaskmem_string uri;
+        if (!channelDelegate) {
-        args->get_Source(&uri);
+          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))) {
-          debugLog(json.get());
+          auto message = nlohmann::json::parse(wide_to_ansi(json.get()));
+
+          if (message.is_object() && message.contains("name") && message.at("name").is_string() && message.contains("body") && message.at("body").is_object()) {
+            auto name = message.at("name").get<std::string>();
+            auto body = message.at("body").get<nlohmann::json>();
+
+            if (name.compare("callHandler") == 0 && body.contains("handlerName") && body.at("handlerName").is_string()) {
+              auto handlerName = body.at("handlerName").get<std::string>();
+              auto callHandlerID = body.at("_callHandlerID").is_number_integer() ? body.at("_callHandlerID").get<int64_t>() : 0;
+              std::string handlerArgs = body.at("args").is_string() ? body.at("args").get<std::string>() : "";
+
+              auto callback = std::make_unique<WebViewChannelDelegate::CallJsHandlerCallback>();
+              callback->defaultBehaviour = [this, callHandlerID](const std::optional<const flutter::EncodableValue*> response)
+                {
+                  std::string json = "null";
+                  if (response.has_value() && !response.value()->IsNull()) {
+                    json = std::get<std::string>(*(response.value()));
+                  }
+
+                  evaluateJavascript("if (window." + JAVASCRIPT_BRIDGE_NAME + "[" + std::to_string(callHandlerID) + "] != null) { \
+                      window." + JAVASCRIPT_BRIDGE_NAME + "[" + std::to_string(callHandlerID) + "].resolve(" + json + "); \
+                      delete window." + JAVASCRIPT_BRIDGE_NAME + "[" + std::to_string(callHandlerID) + "]; \
+                    }", nullptr);
+                };
+              callback->error = [this, callHandlerID](const std::string& error_code, const std::string& error_message, const flutter::EncodableValue* error_details)
+                {
+                  auto errorMessage = error_code + ", " + error_message;
+                  debugLog(errorMessage);
+
+                  evaluateJavascript("if (window." + JAVASCRIPT_BRIDGE_NAME + "[" + std::to_string(callHandlerID) + "] != null) { \
+                      window." + JAVASCRIPT_BRIDGE_NAME + "[" + std::to_string(callHandlerID) + "].reject(new Error('" + replace_all_copy(errorMessage, "\'", "\\'") + "')); \
+                      delete window." + JAVASCRIPT_BRIDGE_NAME + "[" + std::to_string(callHandlerID) + "]; \
+                    }", nullptr);
+                };
+              channelDelegate->onCallJsHandler(handlerName, handlerArgs, std::move(callback));
+            }
+          }
         }
 
         return S_OK;
@@ -395,23 +452,23 @@ namespace flutter_inappwebview_plugin
     return webView && succeededOrLog(webView->get_DocumentTitle(&title)) ? wide_to_utf8(title.get()) : std::optional<std::string>{};
   }
 
-  void InAppWebView::loadUrl(const URLRequest& urlRequest) const
+  void InAppWebView::loadUrl(const std::shared_ptr<URLRequest> urlRequest) const
   {
-    if (!webView || !urlRequest.url.has_value()) {
+    if (!webView || !urlRequest->url.has_value()) {
       return;
     }
 
-    std::wstring url = ansi_to_wide(urlRequest.url.value());
+    std::wstring url = ansi_to_wide(urlRequest->url.value());
 
     wil::com_ptr<ICoreWebView2Environment2> webViewEnv2;
     wil::com_ptr<ICoreWebView2_2> webView2;
     if (SUCCEEDED(webViewEnv->QueryInterface(IID_PPV_ARGS(&webViewEnv2))) && SUCCEEDED(webView->QueryInterface(IID_PPV_ARGS(&webView2)))) {
       wil::com_ptr<ICoreWebView2WebResourceRequest> webResourceRequest;
-      std::wstring method = urlRequest.method.has_value() ? ansi_to_wide(urlRequest.method.value()) : L"GET";
+      std::wstring method = urlRequest->method.has_value() ? ansi_to_wide(urlRequest->method.value()) : L"GET";
 
       wil::com_ptr<IStream> postDataStream = nullptr;
-      if (urlRequest.body.has_value()) {
+      if (urlRequest->body.has_value()) {
-        auto postData = std::string(urlRequest.body->begin(), urlRequest.body->end());
+        auto postData = std::string(urlRequest->body->begin(), urlRequest->body->end());
         postDataStream = SHCreateMemStream(
           reinterpret_cast<const BYTE*>(postData.data()), static_cast<UINT>(postData.length()));
       }
@@ -427,8 +484,8 @@ namespace flutter_inappwebview_plugin
           if (method.compare(L"GET") != 0) {
             requestHeaders->SetHeader(L"Flutter-InAppWebView-Request-Method", method.c_str());
           }
-          if (urlRequest.headers.has_value()) {
+          if (urlRequest->headers.has_value()) {
-            auto& headers = urlRequest.headers.value();
+            auto& headers = urlRequest->headers.value();
             for (auto const& [key, val] : headers) {
               requestHeaders->SetHeader(ansi_to_wide(key).c_str(), ansi_to_wide(val).c_str());
             }
@@ -441,6 +498,37 @@ namespace flutter_inappwebview_plugin
     failedLog(webView->Navigate(url.c_str()));
   }
 
+
+  void InAppWebView::loadFile(const std::string& assetFilePath) const
+  {
+    if (!webView) {
+      return;
+    }
+
+    WCHAR* buf = new WCHAR[32768];
+    GetModuleFileName(NULL, buf, 32768);
+    std::filesystem::path exeAbsPath = std::wstring(buf);
+    delete[] buf;
+
+    std::filesystem::path flutterAssetPath("data/flutter_assets/" + assetFilePath);
+    auto absAssetFilePath = exeAbsPath.parent_path() / flutterAssetPath;
+
+    if (!std::filesystem::exists(absAssetFilePath)) {
+      debugLog(absAssetFilePath.native() + L" asset file cannot be found!");
+      return;
+    }
+    failedLog(webView->Navigate(absAssetFilePath.c_str()));
+  }
+
+  void InAppWebView::loadData(const std::string& data) const
+  {
+    if (!webView) {
+      return;
+    }
+
+    failedLog(webView->NavigateToString(ansi_to_wide(data).c_str()));
+  }
+
   void InAppWebView::reload() const
   {
     if (!webView) {
@@ -527,7 +615,10 @@ namespace flutter_inappwebview_plugin
           int64_t size = items->size();
           canGoBackOrForward_ = nextIndex >= 0 && nextIndex < size;
         }
-        completionHandler(canGoBackOrForward_);
+
+        if (completionHandler) {
+          completionHandler(canGoBackOrForward_);
+        }
       }
     );
   }
@@ -544,13 +635,19 @@ namespace flutter_inappwebview_plugin
   void InAppWebView::getCopyBackForwardList(const std::function<void(std::unique_ptr<WebHistory>)> completionHandler) const
   {
     if (!webView) {
-      completionHandler(std::make_unique<WebHistory>(std::nullopt, std::nullopt));
+      if (completionHandler) {
+        completionHandler(std::make_unique<WebHistory>(std::nullopt, std::nullopt));
+      }
       return;
     }
 
     failedLog(webView->CallDevToolsProtocolMethod(L"Page.getNavigationHistory", L"{}", Callback<ICoreWebView2CallDevToolsProtocolMethodCompletedHandler>(
       [completionHandler](HRESULT errorCode, LPCWSTR returnObjectAsJson)
       {
+        if (!completionHandler) {
+          return S_OK;
+        }
+
         if (errorCode == S_OK) {
           auto historyJson = nlohmann::json::parse(wide_to_ansi(returnObjectAsJson));
 
@@ -585,7 +682,7 @@ namespace flutter_inappwebview_plugin
     ).Get()));
   }
 
-  void InAppWebView::evaluateJavascript(const std::string& source, std::function<void(std::string)> completionHanlder) const
+  void InAppWebView::evaluateJavascript(const std::string& source, const std::function<void(std::string)> completionHanlder) const
   {
     failedLog(webView->ExecuteScript(ansi_to_wide(source).c_str(),
       Callback<ICoreWebView2ExecuteScriptCompletedHandler>(
@@ -594,11 +691,51 @@ namespace flutter_inappwebview_plugin
           if (error != S_OK) {
             debugLog(error);
           }
-          completionHanlder(wide_to_ansi(result));
+
+          if (completionHanlder) {
+            completionHanlder(wide_to_ansi(result));
+          }
+
           return S_OK;
         }).Get()));
   }
 
+  void InAppWebView::addUserScript(const std::shared_ptr<UserScript> userScript) const
+  {
+    if (!userContentController) {
+      return;
+    }
+
+    userContentController->addUserOnlyScript(userScript);
+  }
+
+  void InAppWebView::removeUserScript(const int64_t index, const std::shared_ptr<UserScript> userScript) const
+  {
+    if (!userContentController) {
+      return;
+    }
+
+    userContentController->removeUserOnlyScriptAt(index, userScript->injectionTime);
+  }
+
+  void InAppWebView::removeUserScriptsByGroupName(const std::string& groupName) const
+  {
+    if (!userContentController) {
+      return;
+    }
+
+    userContentController->removeUserOnlyScriptsByGroupName(groupName);
+  }
+
+  void InAppWebView::removeAllUserScripts() const
+  {
+    if (!userContentController) {
+      return;
+    }
+
+    userContentController->removeAllUserOnlyScripts();
+  }
+
   // flutter_view
   void InAppWebView::setSurfaceSize(size_t width, size_t height, float scale_factor)
   {

flutter_inappwebview_windows/windows/in_app_webview/in_app_webview.h

@@ -132,7 +132,9 @@ namespace flutter_inappwebview_plugin
     void prepare();
     std::optional<std::string> getUrl() const;
     std::optional<std::string> getTitle() const;
-    void loadUrl(const URLRequest& urlRequest) const;
+    void loadUrl(const std::shared_ptr<URLRequest> urlRequest) const;
+    void loadFile(const std::string& assetFilePath) const;
+    void loadData(const std::string& data) const;
     void reload() const;
     void goBack();
     bool canGoBack() const;
@@ -145,8 +147,12 @@ namespace flutter_inappwebview_plugin
       return isLoading_;
     }
     void stopLoading() const;
-    void evaluateJavascript(const std::string& source, std::function<void(std::string)> completionHanlder) const;
+    void evaluateJavascript(const std::string& source, const std::function<void(std::string)> completionHanlder) const;
     void getCopyBackForwardList(const std::function<void(std::unique_ptr<WebHistory>)> completionHandler) const;
+    void addUserScript(const std::shared_ptr<UserScript> userScript) const;
+    void removeUserScript(const int64_t index, const std::shared_ptr<UserScript> userScript) const;
+    void removeUserScriptsByGroupName(const std::string& groupName) const;
+    void removeAllUserScripts() const;
 
     static bool isSslError(const COREWEBVIEW2_WEB_ERROR_STATUS& webErrorStatus);
   private:

flutter_inappwebview_windows/windows/in_app_webview/in_app_webview_manager.cpp

@@ -76,6 +76,8 @@ namespace flutter_inappwebview_plugin
 
     auto settingsMap = get_fl_map_value<flutter::EncodableMap>(*arguments, "initialSettings");
     auto urlRequestMap = get_optional_fl_map_value<flutter::EncodableMap>(*arguments, "initialUrlRequest");
+    auto initialFile = get_optional_fl_map_value<std::string>(*arguments, "initialFile");
+    auto initialDataMap = get_optional_fl_map_value<flutter::EncodableMap>(*arguments, "initialData");
 
     auto hwnd = CreateWindowEx(0, windowClass_.lpszClassName, L"", 0, CW_DEFAULT,
       CW_DEFAULT, 0, 0, HWND_MESSAGE, nullptr,
@@ -98,10 +100,16 @@ namespace flutter_inappwebview_plugin
             std::move(webViewEnv), std::move(webViewController), std::move(webViewCompositionController)
           );
 
-          std::optional<URLRequest> urlRequest = urlRequestMap.has_value() ? std::make_optional<URLRequest>(urlRequestMap.value()) : std::optional<URLRequest>{};
+          std::optional<std::shared_ptr<URLRequest>> urlRequest = urlRequestMap.has_value() ? std::make_shared<URLRequest>(urlRequestMap.value()) : std::optional<std::shared_ptr<URLRequest>>{};
           if (urlRequest.has_value()) {
             inAppWebView->loadUrl(urlRequest.value());
           }
+          else if (initialFile.has_value()) {
+            inAppWebView->loadFile(initialFile.value());
+          }
+          else if (initialDataMap.has_value()) {
+            inAppWebView->loadData(get_fl_map_value<std::string>(initialDataMap.value(), "data"));
+          }
 
           auto customPlatformView = std::make_unique<CustomPlatformView>(plugin->registrar->messenger(),
             plugin->registrar->texture_registrar(),

flutter_inappwebview_windows/windows/in_app_webview/user_content_controller.cpp

@@ -1,7 +1,7 @@
 #include <wil/wrl.h>
 
 #include "../utils/log.h"
-#include "../utils/strconv.h"
+#include "../utils/string.h"
 #include "../utils/vector.h"
 #include "in_app_webview.h"
 #include "user_content_controller.h"
@@ -25,6 +25,18 @@ namespace flutter_inappwebview_plugin
       return;
     }
 
+    if (userScript->injectionTime == UserScriptInjectionTime::atDocumentStart && webView_) {
+      failedLog(webView_->webView->AddScriptToExecuteOnDocumentCreated(ansi_to_wide(userScript->source).c_str(),
+        Callback<ICoreWebView2AddScriptToExecuteOnDocumentCreatedCompletedHandler>(
+          [userScript](HRESULT error, PCWSTR id) -> HRESULT
+          {
+            if (succeededOrLog(error)) {
+              userScript->id = id;
+            }
+            return S_OK;
+          }).Get()));
+    }
+
     userOnlyScripts_.at(userScript->injectionTime).push_back(std::move(userScript));
   }
 
@@ -41,7 +53,11 @@ namespace flutter_inappwebview_plugin
       return;
     }
 
-    vector_remove_erase_el(userOnlyScripts_.at(userScript->injectionTime), std::move(userScript));
+    if (webView_) {
+      failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(userScript->id.c_str()));
+    }
+
+    vector_remove_erase(userOnlyScripts_.at(userScript->injectionTime), std::move(userScript));
   }
 
   void UserContentController::removeUserOnlyScriptAt(const int64_t& index, const UserScriptInjectionTime& injectionTime)
@@ -52,13 +68,49 @@ namespace flutter_inappwebview_plugin
       return;
     }
 
-    vec.erase(vec.begin() + index);
+    auto& userScript = vec.at(index);
+    if (userScript) {
+      if (webView_) {
+        failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(userScript->id.c_str()));
+      }
+      vec.erase(vec.begin() + index);
+    }
   }
 
   void UserContentController::removeAllUserOnlyScripts()
   {
-    userOnlyScripts_.at(UserScriptInjectionTime::atDocumentStart).clear();
+    auto& userScriptsAtStart = userOnlyScripts_.at(UserScriptInjectionTime::atDocumentStart);
-    userOnlyScripts_.at(UserScriptInjectionTime::atDocumentEnd).clear();
+    auto& userScriptsAtEnd = userOnlyScripts_.at(UserScriptInjectionTime::atDocumentEnd);
+
+    if (webView_) {
+      for (auto& userScript : userScriptsAtStart) {
+        failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(userScript->id.c_str()));
+      }
+      for (auto& userScript : userScriptsAtEnd) {
+        failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(userScript->id.c_str()));
+      }
+    }
+
+    userScriptsAtStart.clear();
+    userScriptsAtEnd.clear();
+  }
+
+  void UserContentController::removeUserOnlyScriptsByGroupName(const std::string& groupName)
+  {
+    std::vector<std::shared_ptr<UserScript>> userScriptsAtStart = userOnlyScripts_.at(UserScriptInjectionTime::atDocumentStart);
+    std::vector<std::shared_ptr<UserScript>> userScriptsAtEnd = userOnlyScripts_.at(UserScriptInjectionTime::atDocumentEnd);
+
+    for (auto& userScript : userScriptsAtStart) {
+      if (string_equals(groupName, userScript->groupName)) {
+        removeUserOnlyScript(userScript);
+      }
+    }
+
+    for (auto& userScript : userScriptsAtEnd) {
+      if (string_equals(groupName, userScript->groupName)) {
+        removeUserOnlyScript(userScript);
+      }
+    }
   }
 
   std::vector<std::shared_ptr<PluginScript>> UserContentController::getPluginScriptsAt(const UserScriptInjectionTime& injectionTime) const
@@ -66,13 +118,28 @@ namespace flutter_inappwebview_plugin
     return pluginScripts_.at(injectionTime);
   }
 
+  bool UserContentController::containsUserOnlyScript(std::shared_ptr<UserScript> userScript) const
+  {
+    if (!userScript) {
+      return false;
+    }
+
+    return vector_contains(userOnlyScripts_.at(userScript->injectionTime), std::move(userScript));
+  }
+
+  bool UserContentController::containsUserOnlyScriptByGroupName(const std::string& groupName) const
+  {
+    return vector_contains_if(userOnlyScripts_.at(UserScriptInjectionTime::atDocumentStart), [groupName](const std::shared_ptr<UserScript> userScript) { return string_equals(groupName, userScript->groupName); }) ||
+      vector_contains_if(userOnlyScripts_.at(UserScriptInjectionTime::atDocumentEnd), [groupName](const std::shared_ptr<UserScript> userScript) { return string_equals(groupName, userScript->groupName); });
+  }
+
   void UserContentController::addPluginScript(std::shared_ptr<PluginScript> pluginScript)
   {
-    if (!pluginScript || !webView_) {
+    if (!pluginScript) {
       return;
     }
 
-    if (pluginScript->injectionTime == UserScriptInjectionTime::atDocumentStart) {
+    if (pluginScript->injectionTime == UserScriptInjectionTime::atDocumentStart && webView_) {
       failedLog(webView_->webView->AddScriptToExecuteOnDocumentCreated(ansi_to_wide(pluginScript->source).c_str(),
         Callback<ICoreWebView2AddScriptToExecuteOnDocumentCreatedCompletedHandler>(
           [pluginScript](HRESULT error, PCWSTR id) -> HRESULT
@@ -96,19 +163,93 @@ namespace flutter_inappwebview_plugin
 
   void UserContentController::removePluginScript(std::shared_ptr<PluginScript> pluginScript)
   {
-    if (!pluginScript || !webView_) {
+    if (!pluginScript) {
       return;
     }
 
-    failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(pluginScript->id.c_str()));
+    if (webView_) {
+      failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(pluginScript->id.c_str()));
+    }
 
-    vector_remove_erase_el(pluginScripts_.at(pluginScript->injectionTime), std::move(pluginScript));
+    vector_remove_erase(pluginScripts_.at(pluginScript->injectionTime), std::move(pluginScript));
   }
 
   void UserContentController::removeAllPluginScripts()
   {
-    pluginScripts_.at(UserScriptInjectionTime::atDocumentStart).clear();
+    auto& pluginScriptsAtStart = pluginScripts_.at(UserScriptInjectionTime::atDocumentStart);
-    pluginScripts_.at(UserScriptInjectionTime::atDocumentEnd).clear();
+    auto& pluginScriptsAtEnd = pluginScripts_.at(UserScriptInjectionTime::atDocumentEnd);
+
+    if (webView_) {
+      for (auto& pluginScript : pluginScriptsAtStart) {
+        failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(pluginScript->id.c_str()));
+      }
+      for (auto& pluginScript : pluginScriptsAtEnd) {
+        failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(pluginScript->id.c_str()));
+      }
+    }
+
+    pluginScriptsAtStart.clear();
+    pluginScriptsAtEnd.clear();
+  }
+
+  bool UserContentController::containsPluginScript(std::shared_ptr<PluginScript> pluginScript) const
+  {
+    if (!pluginScript) {
+      return false;
+    }
+
+    return vector_contains(pluginScripts_.at(pluginScript->injectionTime), std::move(pluginScript));
+  }
+
+  bool UserContentController::containsPluginScriptByGroupName(const std::string& groupName) const
+  {
+    return vector_contains_if(pluginScripts_.at(UserScriptInjectionTime::atDocumentStart), [groupName](const std::shared_ptr<PluginScript> pluginScript) { return string_equals(groupName, pluginScript->groupName); }) ||
+      vector_contains_if(pluginScripts_.at(UserScriptInjectionTime::atDocumentEnd), [groupName](const std::shared_ptr<PluginScript> pluginScript) { return string_equals(groupName, pluginScript->groupName); });
+  }
+
+  void UserContentController::removePluginScriptsByGroupName(const std::string& groupName)
+  {
+    std::vector<std::shared_ptr<PluginScript>> pluginScriptsAtStart = pluginScripts_.at(UserScriptInjectionTime::atDocumentStart);
+    std::vector<std::shared_ptr<PluginScript>> pluginScriptsAtEnd = pluginScripts_.at(UserScriptInjectionTime::atDocumentEnd);
+
+    for (auto& pluginScript : pluginScriptsAtStart) {
+      if (string_equals(groupName, pluginScript->groupName)) {
+        removePluginScript(pluginScript);
+      }
+    }
+
+    for (auto& pluginScript : pluginScriptsAtEnd) {
+      if (string_equals(groupName, pluginScript->groupName)) {
+        removePluginScript(pluginScript);
+      }
+    }
+  }
+
+  std::string UserContentController::generatePluginScriptsCodeAt(const UserScriptInjectionTime& injectionTime) const
+  {
+    std::string code;
+    std::vector<std::shared_ptr<PluginScript>> pluginScripts = pluginScripts_.at(injectionTime);
+    for (auto& pluginScript : pluginScripts) {
+      code += ";" + pluginScript->source;
+    }
+    return code;
+  }
+
+  std::string UserContentController::generateUserOnlyScriptsCodeAt(const UserScriptInjectionTime& injectionTime) const
+  {
+    std::string code;
+    std::vector<std::shared_ptr<UserScript>> userScripts = userOnlyScripts_.at(injectionTime);
+    for (auto& userScript : userScripts) {
+      code += ";" + userScript->source;
+    }
+    return code;
+  }
+
+  std::string UserContentController::generateWrappedCodeForDocumentEnd() const
+  {
+    std::string code = generatePluginScriptsCodeAt(UserScriptInjectionTime::atDocumentEnd);
+    code += generateUserOnlyScriptsCodeAt(UserScriptInjectionTime::atDocumentEnd);
+    return replace_all_copy(USER_SCRIPTS_AT_DOCUMENT_END_WRAPPER_JS_SOURCE, VAR_PLACEHOLDER_VALUE, code);
   }
 
   UserContentController::~UserContentController()

flutter_inappwebview_windows/windows/in_app_webview/user_content_controller.h

@@ -4,6 +4,8 @@
 #include <map>
 #include <vector>
 
+#include "../plugin_scripts_js/javascript_bridge_js.h"
+#include "../plugin_scripts_js/plugin_scripts_util.h"
 #include "../types/plugin_script.h"
 #include "../types/user_script.h"
 
@@ -11,6 +13,12 @@ namespace flutter_inappwebview_plugin
 {
   class InAppWebView;
 
+  const std::string USER_SCRIPTS_AT_DOCUMENT_END_WRAPPER_JS_SOURCE =
+    "if (window." + JAVASCRIPT_BRIDGE_NAME + " != null && (window." + JAVASCRIPT_BRIDGE_NAME + "._userScriptsAtDocumentEndLoaded == null || !window." + JAVASCRIPT_BRIDGE_NAME + "._userScriptsAtDocumentEndLoaded)) { \
+      window." + JAVASCRIPT_BRIDGE_NAME + "._userScriptsAtDocumentEndLoaded = true; \
+      " + VAR_PLACEHOLDER_VALUE + " \
+    }";
+
   class UserContentController
   {
   public:
@@ -23,11 +31,20 @@ namespace flutter_inappwebview_plugin
     void removeUserOnlyScript(std::shared_ptr<UserScript> userScript);
     void removeUserOnlyScriptAt(const int64_t& index, const UserScriptInjectionTime& injectionTime);
     void removeAllUserOnlyScripts();
+    bool containsUserOnlyScript(std::shared_ptr<UserScript> userScript) const;
+    bool containsUserOnlyScriptByGroupName(const std::string& groupName) const;
+    void removeUserOnlyScriptsByGroupName(const std::string& groupName);
     std::vector<std::shared_ptr<PluginScript>> getPluginScriptsAt(const UserScriptInjectionTime& injectionTime) const;
     void addPluginScript(std::shared_ptr<PluginScript> pluginScript);
     void addPluginScripts(std::vector<std::shared_ptr<PluginScript>> pluginScripts);
     void removePluginScript(std::shared_ptr<PluginScript> pluginScript);
     void removeAllPluginScripts();
+    bool containsPluginScript(std::shared_ptr<PluginScript> pluginScript) const;
+    bool containsPluginScriptByGroupName(const std::string& groupName) const;
+    void removePluginScriptsByGroupName(const std::string& groupName);
+    std::string generatePluginScriptsCodeAt(const UserScriptInjectionTime& injectionTime) const;
+    std::string generateUserOnlyScriptsCodeAt(const UserScriptInjectionTime& injectionTime) const;
+    std::string generateWrappedCodeForDocumentEnd() const;
   private:
     InAppWebView* webView_;
 

flutter_inappwebview_windows/windows/in_app_webview/webview_channel_delegate.cpp

@@ -3,6 +3,7 @@
 #include "../utils/flutter.h"
 #include "../utils/log.h"
 #include "../utils/strconv.h"
+#include "../utils/string.h"
 #include "in_app_webview.h"
 #include "webview_channel_delegate.h"
 
@@ -28,6 +29,14 @@ namespace flutter_inappwebview_plugin
       };
   }
 
+  WebViewChannelDelegate::CallJsHandlerCallback::CallJsHandlerCallback()
+  {
+    decodeResult = [](const flutter::EncodableValue* value)
+      {
+        return value;
+      };
+  }
+
   void WebViewChannelDelegate::HandleMethodCall(const flutter::MethodCall<flutter::EncodableValue>& method_call,
     std::unique_ptr<flutter::MethodResult<flutter::EncodableValue>> result)
   {
@@ -37,42 +46,53 @@ namespace flutter_inappwebview_plugin
     }
 
     auto& arguments = std::get<flutter::EncodableMap>(*method_call.arguments());
+    auto& methodName = method_call.method_name();
 
-    if (method_call.method_name().compare("getUrl") == 0) {
+    if (string_equals(methodName, "getUrl")) {
       result->Success(make_fl_value(webView->getUrl()));
     }
-    else if (method_call.method_name().compare("getTitle") == 0) {
+    else if (string_equals(methodName, "getTitle")) {
       result->Success(make_fl_value(webView->getUrl()));
     }
-    else if (method_call.method_name().compare("loadUrl") == 0) {
+    else if (string_equals(methodName, "loadUrl")) {
       auto urlRequest = std::make_unique<URLRequest>(get_fl_map_value<flutter::EncodableMap>(arguments, "urlRequest"));
-      webView->loadUrl(*urlRequest);
+      webView->loadUrl(std::move(urlRequest));
       result->Success(true);
     }
-    else if (method_call.method_name().compare("reload") == 0) {
+    else if (string_equals(methodName, "loadFile")) {
+      auto assetFilePath = get_fl_map_value<std::string>(arguments, "assetFilePath");
+      webView->loadFile(assetFilePath);
+      result->Success(true);
+    }
+    else if (string_equals(methodName, "loadData")) {
+      auto data = get_fl_map_value<std::string>(arguments, "data");
+      webView->loadData(data);
+      result->Success(true);
+    }
+    else if (string_equals(methodName, "reload")) {
       webView->reload();
       result->Success(true);
     }
-    else if (method_call.method_name().compare("goBack") == 0) {
+    else if (string_equals(methodName, "goBack")) {
       webView->goBack();
       result->Success(true);
     }
-    else if (method_call.method_name().compare("canGoBack") == 0) {
+    else if (string_equals(methodName, "canGoBack")) {
       result->Success(webView->canGoBack());
     }
-    else if (method_call.method_name().compare("goForward") == 0) {
+    else if (string_equals(methodName, "goForward")) {
       webView->goForward();
       result->Success(true);
     }
-    else if (method_call.method_name().compare("canGoForward") == 0) {
+    else if (string_equals(methodName, "canGoForward")) {
       result->Success(webView->canGoForward());
     }
-    else if (method_call.method_name().compare("goBackOrForward") == 0) {
+    else if (string_equals(methodName, "goBackOrForward")) {
       auto steps = get_fl_map_value<int>(arguments, "steps");
       webView->goBackOrForward(steps);
       result->Success(true);
     }
-    else if (method_call.method_name().compare("canGoBackOrForward") == 0) {
+    else if (string_equals(methodName, "canGoBackOrForward")) {
       auto result_ = std::shared_ptr<flutter::MethodResult<flutter::EncodableValue>>(std::move(result));
 
       auto steps = get_fl_map_value<int>(arguments, "steps");
@@ -81,14 +101,14 @@ namespace flutter_inappwebview_plugin
           result_->Success(value);
         });
     }
-    else if (method_call.method_name().compare("isLoading") == 0) {
+    else if (string_equals(methodName, "isLoading")) {
       result->Success(webView->isLoading());
     }
-    else if (method_call.method_name().compare("stopLoading") == 0) {
+    else if (string_equals(methodName, "stopLoading")) {
       webView->stopLoading();
       result->Success(true);
     }
-    else if (method_call.method_name().compare("evaluateJavascript") == 0) {
+    else if (string_equals(methodName, "evaluateJavascript")) {
       auto result_ = std::shared_ptr<flutter::MethodResult<flutter::EncodableValue>>(std::move(result));
 
       auto source = get_fl_map_value<std::string>(arguments, "source");
@@ -97,23 +117,43 @@ namespace flutter_inappwebview_plugin
           result_->Success(value);
         });
     }
-    else if (method_call.method_name().compare("getCopyBackForwardList") == 0) {
+    else if (string_equals(methodName, "getCopyBackForwardList")) {
       auto result_ = std::shared_ptr<flutter::MethodResult<flutter::EncodableValue>>(std::move(result));
       webView->getCopyBackForwardList([result_ = std::move(result_)](const std::unique_ptr<WebHistory> value)
         {
           result_->Success(value->toEncodableMap());
         });
     }
+    else if (string_equals(methodName, "addUserScript")) {
+      auto userScript = std::make_unique<UserScript>(get_fl_map_value<flutter::EncodableMap>(arguments, "userScript"));
+      webView->addUserScript(std::move(userScript));
+      result->Success(true);
+    }
+    else if (string_equals(methodName, "removeUserScript")) {
+      auto index = get_fl_map_value<int64_t>(arguments, "index");
+      auto userScript = std::make_unique<UserScript>(get_fl_map_value<flutter::EncodableMap>(arguments, "userScript"));
+      webView->removeUserScript(index, std::move(userScript));
+      result->Success(true);
+    }
+    else if (string_equals(methodName, "removeUserScriptsByGroupName")) {
+      auto groupName = get_fl_map_value<std::string>(arguments, "groupName");
+      webView->removeUserScriptsByGroupName(groupName);
+      result->Success(true);
+    }
+    else if (string_equals(methodName, "removeAllUserScripts")) {
+      webView->removeAllUserScripts();
+      result->Success(true);
+    }
     // for inAppBrowser
-    else if (webView->inAppBrowser && method_call.method_name().compare("show") == 0) {
+    else if (webView->inAppBrowser && string_equals(methodName, "show")) {
       webView->inAppBrowser->show();
       result->Success(true);
     }
-    else if (webView->inAppBrowser && method_call.method_name().compare("hide") == 0) {
+    else if (webView->inAppBrowser && string_equals(methodName, "hide")) {
       webView->inAppBrowser->hide();
       result->Success(true);
     }
-    else if (webView->inAppBrowser && method_call.method_name().compare("close") == 0) {
+    else if (webView->inAppBrowser && string_equals(methodName, "close")) {
       webView->inAppBrowser->close();
       result->Success(true);
     }
@@ -211,6 +251,19 @@ namespace flutter_inappwebview_plugin
     channel->InvokeMethod("onUpdateVisitedHistory", std::move(arguments));
   }
 
+  void WebViewChannelDelegate::onCallJsHandler(const std::string& handlerName, const std::string& args, std::unique_ptr<CallJsHandlerCallback> callback) const
+  {
+    if (!channel) {
+      return;
+    }
+
+    auto arguments = std::make_unique<flutter::EncodableValue>(flutter::EncodableMap{
+      {"handlerName", handlerName},
+      {"args", args}
+      });
+    channel->InvokeMethod("onCallJsHandler", std::move(arguments), std::move(callback));
+  }
+
   WebViewChannelDelegate::~WebViewChannelDelegate()
   {
     debugLog("dealloc WebViewChannelDelegate");

flutter_inappwebview_windows/windows/in_app_webview/webview_channel_delegate.h

@@ -22,12 +22,18 @@ namespace flutter_inappwebview_plugin
   public:
     InAppWebView* webView;
 
-    class ShouldOverrideUrlLoadingCallback : public BaseCallbackResult<NavigationActionPolicy> {
+    class ShouldOverrideUrlLoadingCallback : public BaseCallbackResult<const NavigationActionPolicy> {
     public:
       ShouldOverrideUrlLoadingCallback();
       ~ShouldOverrideUrlLoadingCallback() = default;
     };
 
+    class CallJsHandlerCallback : public BaseCallbackResult<const flutter::EncodableValue*> {
+    public:
+      CallJsHandlerCallback();
+      ~CallJsHandlerCallback() = default;
+    };
+
     WebViewChannelDelegate(InAppWebView* webView, flutter::BinaryMessenger* messenger);
     WebViewChannelDelegate(InAppWebView* webView, flutter::BinaryMessenger* messenger, const std::string& name);
     ~WebViewChannelDelegate();
@@ -43,6 +49,7 @@ namespace flutter_inappwebview_plugin
     void onReceivedHttpError(std::shared_ptr<WebResourceRequest> request, std::shared_ptr<WebResourceResponse> error) const;
     void onTitleChanged(const std::optional<std::string>& title) const;
     void onUpdateVisitedHistory(const std::optional<std::string>& url, const std::optional<bool>& isReload) const;
+    void onCallJsHandler(const std::string& handlerName, const std::string& args, std::unique_ptr<CallJsHandlerCallback> callback) const;
   };
 }
 

flutter_inappwebview_windows/windows/plugin_scripts_js/javascript_bridge_js.cpp

@@ -1,21 +1,12 @@
-#include <set>
+#include <vector>
 
 #include "javascript_bridge_js.h"
 
 namespace flutter_inappwebview_plugin
 {
-  const std::string JAVASCRIPT_BRIDGE_JS_SOURCE = "window." + JAVASCRIPT_BRIDGE_NAME + " = {}; \
-  window." + JAVASCRIPT_BRIDGE_NAME + ".callHandler = function() { \
-    var _callHandlerID = setTimeout(function() {}); \
-    window.chrome.webview.postMessage({ 'internalHandlerName': 'callHandler', 'handlerName': arguments[0], '_callHandlerID' : _callHandlerID, 'args' : JSON.stringify(Array.prototype.slice.call(arguments, 1)) }); \
-    return new Promise(function(resolve, reject) { \
-      window." + JAVASCRIPT_BRIDGE_NAME + "[_callHandlerID] = { resolve: resolve, reject : reject };\
-    });\
-  };";
-
   std::unique_ptr<PluginScript> createJavaScriptBridgePluginScript()
   {
-    const std::set<std::string> allowedOriginRules = { "*" };
+    const std::vector<std::string> allowedOriginRules = { "*" };
     return std::make_unique<PluginScript>(
       JAVASCRIPT_BRIDGE_JS_PLUGIN_SCRIPT_GROUP_NAME,
       JAVASCRIPT_BRIDGE_JS_SOURCE,

flutter_inappwebview_windows/windows/plugin_scripts_js/javascript_bridge_js.h

@@ -9,7 +9,21 @@
 namespace flutter_inappwebview_plugin
 {
   const std::string JAVASCRIPT_BRIDGE_NAME = "flutter_inappwebview";
+  const std::string JAVASCRIPT_BRIDGE_JS_SOURCE = "window." + JAVASCRIPT_BRIDGE_NAME + " = {}; \
+  window." + JAVASCRIPT_BRIDGE_NAME + ".callHandler = function() { \
+    var _callHandlerID = setTimeout(function() {}); \
+    window.chrome.webview.postMessage({ 'name': 'callHandler', 'body': {'handlerName': arguments[0], '_callHandlerID' : _callHandlerID, 'args' : JSON.stringify(Array.prototype.slice.call(arguments, 1))} }); \
+    return new Promise(function(resolve, reject) { \
+      window." + JAVASCRIPT_BRIDGE_NAME + "[_callHandlerID] = { resolve: resolve, reject : reject };\
+    });\
+  };";
   const std::string JAVASCRIPT_BRIDGE_JS_PLUGIN_SCRIPT_GROUP_NAME = "IN_APP_WEBVIEW_JAVASCRIPT_BRIDGE_JS_PLUGIN_SCRIPT";
+  const std::string PLATFORM_READY_JS_SOURCE = "(function() { \
+     if ((window.top == null || window.top === window) && window." + JAVASCRIPT_BRIDGE_NAME + " != null && window." + JAVASCRIPT_BRIDGE_NAME + "._platformReady == null) { \
+       window.dispatchEvent(new Event('flutterInAppWebViewPlatformReady')); \
+       window." + JAVASCRIPT_BRIDGE_NAME + "._platformReady = true; \
+     } \
+   })();";
 
   std::unique_ptr<PluginScript> createJavaScriptBridgePluginScript();
 }

flutter_inappwebview_windows/windows/plugin_scripts_js/plugin_scripts_util.h

@@ -0,0 +1,11 @@
+#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_PLUGIN_SCRIPTS_UTIL_H_
+#define FLUTTER_INAPPWEBVIEW_PLUGIN_PLUGIN_SCRIPTS_UTIL_H_
+
+#include <string>
+
+namespace flutter_inappwebview_plugin
+{
+    const std::string VAR_PLACEHOLDER_VALUE = "$IN_APP_WEBVIEW_PLACEHOLDER_VALUE";
+}
+
+#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_PLUGIN_SCRIPTS_UTIL_H_

flutter_inappwebview_windows/windows/types/plugin_script.cpp

@@ -6,7 +6,7 @@ namespace flutter_inappwebview_plugin
     const std::optional<std::string>& groupName,
     const std::string& source,
     const UserScriptInjectionTime& injectionTime,
-    const std::set<std::string>& allowedOriginRules
+    const std::vector<std::string>& allowedOriginRules
   ) : UserScript(groupName, source, injectionTime, allowedOriginRules)
   {}
 

flutter_inappwebview_windows/windows/types/plugin_script.h

@@ -13,7 +13,7 @@ namespace flutter_inappwebview_plugin
       const std::optional<std::string>& groupName,
       const std::string& source,
       const UserScriptInjectionTime& injectionTime,
-      const std::set<std::string>& allowedOriginRules
+      const std::vector<std::string>& allowedOriginRules
     );
     ~PluginScript();
   };

flutter_inappwebview_windows/windows/types/user_script.cpp

@@ -1,3 +1,4 @@
+#include "../utils/map.h"
 #include "user_script.h"
 
 namespace flutter_inappwebview_plugin
@@ -6,10 +7,17 @@ namespace flutter_inappwebview_plugin
     const std::optional<std::string>& groupName,
     const std::string& source,
     const UserScriptInjectionTime& injectionTime,
-    const std::set<std::string>& allowedOriginRules
+    const std::vector<std::string>& allowedOriginRules
   ) : groupName(groupName), source(source), injectionTime(injectionTime), allowedOriginRules(allowedOriginRules)
   {}
 
+  UserScript::UserScript(const flutter::EncodableMap& map)
+    : groupName(get_optional_fl_map_value<std::string>(map, "groupName")),
+    source(get_fl_map_value<std::string>(map, "source")),
+    injectionTime(static_cast<UserScriptInjectionTime>(get_fl_map_value<int>(map, "injectionTime"))),
+    allowedOriginRules(functional_map(get_fl_map_value<flutter::EncodableList>(map, "allowedOriginRules"), [](const flutter::EncodableValue& m) { return std::get<std::string>(m); }))
+  {}
+
   UserScript::~UserScript()
   {}
 }

flutter_inappwebview_windows/windows/types/user_script.h

@@ -1,14 +1,17 @@
 #ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_USER_SCRIPT_H_
 #define FLUTTER_INAPPWEBVIEW_PLUGIN_USER_SCRIPT_H_
 
+#include <flutter/standard_method_codec.h>
 #include <optional>
-#include <set>
 #include <string>
+#include <vector>
+
+#include "../utils/flutter.h"
 
 namespace flutter_inappwebview_plugin
 {
   enum UserScriptInjectionTime {
-    atDocumentStart,
+    atDocumentStart = 0,
     atDocumentEnd
   };
 
@@ -19,14 +22,15 @@ namespace flutter_inappwebview_plugin
     const std::optional<std::string> groupName;
     const std::string source;
     const UserScriptInjectionTime injectionTime;
-    const std::set<std::string> allowedOriginRules;
+    const std::vector<std::string> allowedOriginRules;
 
     UserScript(
       const std::optional<std::string>& groupName,
       const std::string& source,
       const UserScriptInjectionTime& injectionTime,
-      const std::set<std::string>& allowedOriginRules
+      const std::vector<std::string>& allowedOriginRules
     );
+    UserScript(const flutter::EncodableMap& map);
     ~UserScript();
   };
 }

flutter_inappwebview_windows/windows/types/web_history.cpp

@@ -1,4 +1,4 @@
-#include "../utils/util.h"
+#include "../utils/vector.h"
 #include "web_history.h"
 
 namespace flutter_inappwebview_plugin

flutter_inappwebview_windows/windows/utils/flutter.h

@@ -1,5 +1,5 @@
-#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_FLUTTER_UTIL_H_
+#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_FLUTTER_H_
-#define FLUTTER_INAPPWEBVIEW_PLUGIN_FLUTTER_UTIL_H_
+#define FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_FLUTTER_H_
 
 #include <flutter/encodable_value.h>
 
@@ -148,4 +148,4 @@ namespace flutter_inappwebview_plugin
   }
 }
 
-#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_FLUTTER_UTIL_H_
+#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_FLUTTER_H_

flutter_inappwebview_windows/windows/utils/log.h

@@ -4,12 +4,14 @@
 #include <comdef.h>
 #include <iostream>
 #include <string>
+#include <type_traits>
 
 #include "strconv.h"
 
 namespace flutter_inappwebview_plugin
 {
-  static inline void debugLog(const std::string& msg, const bool& isError = false)
+  template <typename T>
+  static inline void debugLog(const std::basic_string<T>& msg, const bool& isError = false)
   {
 #ifndef NDEBUG
     if (isError) {
@@ -22,11 +24,30 @@ namespace flutter_inappwebview_plugin
 #endif
   }
 
+  static inline void debugLog(const char* msg, const bool& isError = false)
+  {
+    debugLog(std::string(msg), isError);
+  }
+
   static inline void debugLog(const std::wstring& msg, const bool& isError = false)
   {
     debugLog(wide_to_ansi(msg), isError);
   }
 
+  static inline void debugLog(const bool& value, const bool& isError = false)
+  {
+    debugLog(value ? "true" : "false", isError);
+  }
+
+  template<
+    typename T,
+    typename = typename std::enable_if<std::is_arithmetic<T>::value, T>::type
+  >
+  static inline void debugLog(const T& value, const bool& isError = false)
+  {
+    debugLog(std::to_string(value), isError);
+  }
+
   static inline std::string getHRMessage(const HRESULT& error)
   {
     return wide_to_ansi(_com_error(error).ErrorMessage());

flutter_inappwebview_windows/windows/utils/map.h

@@ -1,11 +1,10 @@
-#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_LOG_MAP_H_
+#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_MAP_H_
-#define FLUTTER_INAPPWEBVIEW_PLUGIN_LOG_MAP_H_
+#define FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_MAP_H_
 
 #include <algorithm>
 #include <iterator>
 #include <map>
 #include <optional>
-#include <vector>
 
 namespace flutter_inappwebview_plugin
 {
@@ -33,39 +32,6 @@ namespace flutter_inappwebview_plugin
     auto itr = map.find(key);
     return itr != map.end() ? itr->second : nullptr;
   }
-
-  template <typename Iterator, typename Func>
-  static inline auto functional_map(Iterator begin, Iterator end, Func&& func) ->
-    std::vector<decltype(func(std::declval<typename Iterator::value_type>()))>
-  {
-    using value_type = decltype(func(std::declval<typename Iterator::value_type>()));
-
-    std::vector<value_type> out_vector;
-    out_vector.reserve(std::distance(begin, end));
-
-    std::transform(begin, end, std::back_inserter(out_vector),
-      std::forward<Func>(func));
-
-    return out_vector;
-  }
-
-  template <typename T, typename Func>
-  static inline auto functional_map(const T& iterable, Func&& func) ->
-    std::vector<decltype(func(std::declval<typename T::value_type>()))>
-  {
-    return functional_map(std::begin(iterable), std::end(iterable),
-      std::forward<Func>(func));
-  }
-
-  template <typename T, typename Func>
-  static inline auto functional_map(const std::optional<T>& iterable, Func&& func) ->
-    std::vector<decltype(func(std::declval<typename T::value_type>()))>
-  {
-    if (!iterable.has_value()) {
-      return {};
-    }
-    return functional_map(iterable.value(), std::forward<Func>(func));
-  }
 }
 
-#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_LOG_MAP_H_
+#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_MAP_H_

flutter_inappwebview_windows/windows/utils/string.h

@@ -0,0 +1,112 @@
+#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_STRING_H_
+#define FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_STRING_H_
+
+#include <optional>
+#include <string>
+
+#include "strconv.h"
+
+namespace flutter_inappwebview_plugin
+{
+  template <typename T>
+  struct is_string
+    : std::false_type
+  {};
+
+  // Partial specialization - parameters used to qualify the specialization
+  template <typename CharT, typename TraitsT, typename AllocT>
+  struct is_string<std::basic_string<CharT, TraitsT, AllocT>>
+    : std::true_type
+  {};
+
+  template <typename T>
+  using is_basic_string = is_string<std::remove_cv_t<T>>;
+
+  template <typename T>
+  static inline bool string_equals(const std::basic_string<T>& s1, const std::basic_string<T>& s2)
+  {
+    return s1.compare(s2) == 0;
+  }
+
+  template <typename T>
+  static inline bool string_equals(const std::basic_string<T>& s1, const char* s2)
+  {
+    return s1.compare(s2) == 0;
+  }
+
+  template <typename T>
+  static inline bool string_equals(const char* s1, const std::basic_string<T>& s2)
+  {
+    return s2.compare(s1) == 0;
+  }
+
+  static inline bool string_equals(const std::string& s1, const std::wstring& s2)
+  {
+    return string_equals(s1, wide_to_ansi(s2));
+  }
+
+  static inline bool string_equals(const std::wstring& s1, const std::string& s2)
+  {
+    return string_equals(wide_to_ansi(s1), s2);
+  }
+
+  template <typename T>
+  static inline bool string_equals(const std::optional<std::basic_string<T>>& s1, const std::basic_string<T>& s2)
+  {
+    return s1.has_value() ? string_equals(s1.value(), s2) : false;
+  }
+
+  template <typename T>
+  static inline bool string_equals(const std::basic_string<T>& s1, const std::optional<std::basic_string<T>>& s2)
+  {
+    return s2.has_value() ? string_equals(s1, s2.value()) : false;
+  }
+
+  template <typename T>
+  static inline bool string_equals(const std::optional<std::basic_string<T>>& s1, const std::optional<std::basic_string<T>>& s2)
+  {
+    return s1.has_value() && s2.has_value() ? string_equals(s1.value(), s2.value()) : true;
+  }
+
+  static inline void replace_all(std::string& source, const std::string& from, const std::string& to)
+  {
+    std::string newString;
+    newString.reserve(source.length());  // avoids a few memory allocations
+
+    std::string::size_type lastPos = 0;
+    std::string::size_type findPos;
+
+    while (std::string::npos != (findPos = source.find(from, lastPos))) {
+      newString.append(source, lastPos, findPos - lastPos);
+      newString += to;
+      lastPos = findPos + from.length();
+    }
+
+    // Care for the rest after last occurrence
+    newString += source.substr(lastPos);
+
+    source.swap(newString);
+  }
+
+  static inline std::string replace_all_copy(const std::string& source, const std::string& from, const std::string& to)
+  {
+    std::string newString;
+    newString.reserve(source.length());  // avoids a few memory allocations
+
+    std::string::size_type lastPos = 0;
+    std::string::size_type findPos;
+
+    while (std::string::npos != (findPos = source.find(from, lastPos))) {
+      newString.append(source, lastPos, findPos - lastPos);
+      newString += to;
+      lastPos = findPos + from.length();
+    }
+
+    // Care for the rest after last occurrence
+    newString += source.substr(lastPos);
+
+    return newString;
+  }
+}
+
+#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_STRING_H_

flutter_inappwebview_windows/windows/utils/vector.h

@@ -1,7 +1,8 @@
-#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_LOG_VECTOR_H_
+#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_VECTOR_H_
-#define FLUTTER_INAPPWEBVIEW_PLUGIN_LOG_VECTOR_H_
+#define FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_VECTOR_H_
 
 #include <algorithm>
+#include <functional>
 #include <iterator>
 #include <optional>
 #include <string>
@@ -26,16 +27,73 @@ namespace flutter_inappwebview_plugin
   struct is_vector : is_vector_impl<T>::type { };
 
   template <typename T>
-  static inline void vector_remove_el(std::vector<T>& vec, const T& el)
+  static inline void vector_remove(std::vector<T>& vec, const T& el)
   {
     std::remove(vec.begin(), vec.end(), el);
   }
 
+  template <typename T, typename UnaryPredicate>
+  static inline void vector_remove_if(std::vector<T>& vec, UnaryPredicate&& predicate)
+  {
+    std::remove_if(vec.begin(), vec.end(), std::forward<UnaryPredicate>(predicate));
+  }
+
   template <typename T>
-  static inline void vector_remove_erase_el(std::vector<T>& vec, const T& el)
+  static inline void vector_remove_erase(std::vector<T>& vec, const T& el)
   {
     vec.erase(std::remove(vec.begin(), vec.end(), el), vec.end());
   }
+
+  template <typename T, typename UnaryPredicate>
+  static inline void vector_remove_erase_if(std::vector<T>& vec, UnaryPredicate&& predicate)
+  {
+    vec.erase(std::remove_if(vec.begin(), vec.end(), std::forward<UnaryPredicate>(predicate)), vec.end());
+  }
+
+  template <typename T>
+  static inline bool vector_contains(const std::vector<T>& vec, const T& value)
+  {
+    return std::find(vec.begin(), vec.end(), value) != vec.end();
+  }
+
+  template <typename T, typename UnaryPredicate>
+  static inline bool vector_contains_if(const std::vector<T>& vec, UnaryPredicate&& predicate)
+  {
+    return std::find_if(vec.begin(), vec.end(), std::forward<UnaryPredicate>(predicate)) != vec.end();
+  }
+
+  template <typename Iterator, typename Func>
+  static inline auto functional_map(Iterator begin, Iterator end, Func&& func) ->
+    std::vector<decltype(func(std::declval<typename Iterator::value_type>()))>
+  {
+    using value_type = decltype(func(std::declval<typename Iterator::value_type>()));
+
+    std::vector<value_type> out_vector;
+    out_vector.reserve(std::distance(begin, end));
+
+    std::transform(begin, end, std::back_inserter(out_vector),
+      std::forward<Func>(func));
+
+    return out_vector;
+  }
+
+  template <typename T, typename Func>
+  static inline auto functional_map(const T& iterable, Func&& func) ->
+    std::vector<decltype(func(std::declval<typename T::value_type>()))>
+  {
+    return functional_map(std::begin(iterable), std::end(iterable),
+      std::forward<Func>(func));
+  }
+
+  template <typename T, typename Func>
+  static inline auto functional_map(const std::optional<T>& iterable, Func&& func) ->
+    std::vector<decltype(func(std::declval<typename T::value_type>()))>
+  {
+    if (!iterable.has_value()) {
+      return {};
+    }
+    return functional_map(iterable.value(), std::forward<Func>(func));
+  }
 }
 
-#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_LOG_VECTOR_H_
+#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_VECTOR_H_