fix: dealloc InAppWebViewManager

flutter_inappwebview/lib/src/in_app_webview/in_app_webview_controller.dart

@@ -500,6 +500,8 @@ class InAppWebViewController {
   ///{@macro flutter_inappwebview_platform_interface.PlatformInAppWebViewController.openDevTools}
   Future<void> openDevTools() => platform.openDevTools();
 
+  Future<void> setThemeMode(String theme) => platform.setThemeMode(theme);
+
   ///{@macro flutter_inappwebview_platform_interface.PlatformInAppWebViewController.callDevToolsProtocolMethod}
   Future<dynamic> callDevToolsProtocolMethod(
           {required String methodName, Map<String, dynamic>? parameters}) =>

flutter_inappwebview_platform_interface/lib/src/in_app_webview/platform_inappwebview_controller.dart

@@ -2140,6 +2140,11 @@ abstract class PlatformInAppWebViewController extends PlatformInterface
         'openDevTools is not implemented on the current platform');
   }
 
+  Future<void> setThemeMode(String theme) {
+    throw UnimplementedError(
+        'setThemeMode is not implemented on the current platform');
+  }
+
   ///{@template flutter_inappwebview_platform_interface.PlatformInAppWebViewController.callDevToolsProtocolMethod}
   ///Runs an asynchronous `DevToolsProtocol` method.
   ///

flutter_inappwebview_windows/lib/src/in_app_webview/custom_platform_view.dart

@@ -431,8 +431,10 @@ class _CustomPlatformViewState extends State<CustomPlatformView>
                       }
                     },
                     onPointerPanZoomUpdate: (ev) {
-                      _controller._setScrollDelta(
-                          ev.panDelta.dx, ev.panDelta.dy);
+                      // _controller._setScrollDelta(ev.panDelta.dx, ev.panDelta.dy);
+                      // Workaround: fix scroll not working using TouchPad
+                      // https://github.com/pichillilorenzo/flutter_inappwebview/issues/2503
+                      _controller._setScrollDelta(0, ev.panDelta.dy);
                     },
                     child: MouseRegion(
                         cursor: _cursor,

flutter_inappwebview_windows/lib/src/in_app_webview/in_app_webview_controller.dart

@@ -2727,6 +2727,13 @@ class WindowsInAppWebViewController extends PlatformInAppWebViewController
     await channel?.invokeMethod('openDevTools', args);
   }
 
+  @override
+  Future<void> setThemeMode(String theme) async {
+    Map<String, dynamic> args = <String, dynamic>{};
+    args.putIfAbsent('theme', () => theme);
+    await channel?.invokeMethod('setThemeMode', args);
+  }
+
   @override
   Future<dynamic> callDevToolsProtocolMethod(
       {required String methodName, Map<String, dynamic>? parameters}) async {

flutter_inappwebview_windows/windows/custom_platform_view/texture_bridge_gpu.cc

@@ -19,6 +19,13 @@ namespace flutter_inappwebview_plugin
   void TextureBridgeGpu::ProcessFrame(
     winrt::com_ptr<ID3D11Texture2D> src_texture)
   {
+    if (!graphics_context_) {
+      return;
+    }
+    auto device_context = graphics_context_->d3d_device_context();
+    if (!device_context) {
+      return;
+    }
     D3D11_TEXTURE2D_DESC desc;
     src_texture->GetDesc(&desc);
 
@@ -27,8 +34,6 @@ namespace flutter_inappwebview_plugin
 
     EnsureSurface(width, height);
 
-    auto device_context = graphics_context_->d3d_device_context();
-
     device_context->CopyResource(surface_.get(), src_texture.get());
     device_context->Flush();
   }

flutter_inappwebview_windows/windows/in_app_webview/in_app_webview.cpp

@@ -26,6 +26,7 @@
 #include "in_app_webview.h"
 #include "in_app_webview_manager.h"
 
+
 namespace flutter_inappwebview_plugin
 {
   using namespace Microsoft::WRL;
@@ -1995,6 +1996,26 @@ namespace flutter_inappwebview_plugin
     failedLog(webView->OpenDevToolsWindow());
   }
 
+  void InAppWebView::setThemeMode(const std::string& theme) const
+  {
+    if (!webView) {
+      return;
+    }
+    ComPtr<ICoreWebView2_13> coreWebView2_13;
+    if (SUCCEEDED(webView->QueryInterface(IID_ICoreWebView2_13, &coreWebView2_13))) {
+      ComPtr<ICoreWebView2Profile> profile;
+      if (SUCCEEDED(coreWebView2_13->get_Profile(&profile))) {
+        if (profile) {
+          if (theme == "dark") {
+            profile->put_PreferredColorScheme(COREWEBVIEW2_PREFERRED_COLOR_SCHEME_DARK);
+          } else if (theme == "light") {
+            profile->put_PreferredColorScheme(COREWEBVIEW2_PREFERRED_COLOR_SCHEME_LIGHT);
+          }
+        }
+      }
+    }
+  }
+
   void InAppWebView::callDevToolsProtocolMethod(const std::string& methodName, const std::optional<std::string>& parametersAsJson, const std::function<void(const HRESULT& errorCode, const std::optional<std::string>&)> completionHandler) const
   {
     if (!webView) {

flutter_inappwebview_windows/windows/in_app_webview/in_app_webview.h

@@ -171,6 +171,7 @@ namespace flutter_inappwebview_plugin
     void setSettings(const std::shared_ptr<InAppWebViewSettings> newSettings, const flutter::EncodableMap& newSettingsMap);
     flutter::EncodableValue getSettings() const;
     void openDevTools() const;
+    void setThemeMode(const std::string& theme) const;
     void callDevToolsProtocolMethod(const std::string& methodName, const std::optional<std::string>& parametersAsJson, const std::function<void(const HRESULT& errorCode, const std::optional<std::string>&)> completionHandler) const;
     void addDevToolsProtocolEventListener(const std::string& eventName);
     void removeDevToolsProtocolEventListener(const std::string& eventName);

flutter_inappwebview_windows/windows/in_app_webview/in_app_webview_manager.cpp

@@ -255,6 +255,19 @@ namespace flutter_inappwebview_plugin
     webViews.clear();
     keepAliveWebViews.clear();
     windowWebViews.clear();
+    if (compositor_) {
+      compositor_->Release();
+      compositor_ = nullptr;
+    }
+    if (graphics_context_) {
+      graphics_context_.reset();
+    }
+    if (dispatcher_queue_controller_) {
+      dispatcher_queue_controller_ = nullptr;
+    }
+    if (rohelper_) {
+      rohelper_ = nullptr;
+    }
     UnregisterClass(windowClass_.lpszClassName, nullptr);
     plugin = nullptr;
   }

flutter_inappwebview_windows/windows/in_app_webview/webview_channel_delegate.cpp

@@ -262,6 +262,11 @@ namespace flutter_inappwebview_plugin
       webView->openDevTools();
       result->Success(true);
     }
+    else if (string_equals(methodName, "setThemeMode")) {
+      auto theme = get_fl_map_value<std::string>(arguments, "theme");
+      webView->setThemeMode(theme);
+      result->Success(true);
+    }
     else if (string_equals(methodName, "callDevToolsProtocolMethod")) {
       auto result_ = std::shared_ptr<flutter::MethodResult<flutter::EncodableValue>>(std::move(result));
       auto cdpMethodName = get_fl_map_value<std::string>(arguments, "methodName");