WebViewBridge

example/windows/WebViewWindows.sln

 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ReactNativeWebView", "..\..\windows\ReactNativeWebView\ReactNativeWebView.vcxproj", "{729D9AF8-CD9E-4427-9F6C-FB757E287729}"
 EndProject
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+EndProject
 Global
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 		Release|x64 = Release|x64
 		Release|x86 = Release|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
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 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

windows/ReactNativeWebView/ReactNativeWebView.vcxproj

       <Project>{f7d32bd0-2749-483e-9a0d-1635ef7e3136}</Project>
       <Private>false</Private>
     </ProjectReference>
+    <ProjectReference Include="..\WebViewBridge\WebViewBridge.vcxproj">
+      <Project>{dc466263-7d1f-4907-acd1-cc771d1fdd58}</Project>
+    </ProjectReference>
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">

windows/ReactNativeWebView/ReactWebView.cpp

 #include "ReactWebView.h"
 #include "ReactWebView.g.cpp"
 
+#include "winrt/WebViewBridge.h"
+
+
+
 namespace winrt {
     using namespace Microsoft::ReactNative;
     using namespace Windows::Data::Json;
                 WriteWebViewNavigationEventArg(webView, eventDataWriter);
                 eventDataWriter.WriteObjectEnd();
             });
+
+        if (m_messagingEnabled) {
+          auto tag = this->GetValue(winrt::FrameworkElement::TagProperty()).as<winrt::IPropertyValue>().GetInt64();
+
+          auto bridge = WebViewBridge::WebBridge(tag);
+          webView.AddWebAllowedObject(L"__RN_WEBVIEW_JS_BRIDGE", bridge);
+        }
     }
 
     void ReactWebView::OnNavigationCompleted(winrt::WebView const& webView, winrt::WebViewNavigationCompletedEventArgs const& /*args*/) {

windows/ReactNativeWebView/ReactWebViewManager.cpp

                 }
                 else if (propertyName == "messagingEnabled") {
                   auto messagingEnabled = propertyValue.To<bool>();
-                  if (auto reactWebView = content.try_as<ReactNativeWebView::ReactWebView>()) {
+                  if (auto reactWebView = view.try_as<ReactNativeWebView::ReactWebView>()) {
                     reactWebView.SetMessagingEnabled(messagingEnabled);
                   }
                 }
             else if (commandId == L"injectJavaScript") {
                 webView.InvokeScriptAsync(L"eval", { winrt::to_hstring(commandArgs[0].AsString()) });
             } else if(commandId == L"postMessage") {
-                if (auto reactWebView = content.try_as<ReactNativeWebView::ReactWebView>()) {
+                if (auto reactWebView = view.try_as<ReactNativeWebView::ReactWebView>()) {
                     reactWebView.PostMessage(winrt::to_hstring(commandArgs[0].AsString()));
                 }
             }

windows/WebViewBridge/WebBridge.cpp

+#include "pch.h"
+#include "WebBridge.h"
+
+
+
+using namespace WebViewBridge;
+using namespace Platform;
+
+
+// https://docs.microsoft.com/en-us/windows/uwp/winrt-components/create-a-windows-runtime-component-in-cppwinrt
+// https://github.com/microsoft/react-native-windows/blob/0.59-legacy/current/ReactWindows/ReactNativeWebViewBridge/WebViewBridge.cs
+
+
+WebBridge::WebBridge(int64 tag)
+{
+  //winrt::hstring w{ L"Hello, World!" };
+}
+
+void WebBridge::PostMessage() {
+}

windows/WebViewBridge/WebBridge.h

+#pragma once
+
+using namespace Windows::Foundation;
+
+namespace WebViewBridge
+{
+  [Windows::Foundation::Metadata::AllowForWebAttribute]
+  public ref class WebBridge sealed
+    {
+    public:
+      WebBridge(int64 tag);
+      void PostMessage();
+    };
+}
+
+
+// https://github.com/MicrosoftEdge/JSBrowser/blob/master/NativeListener/KeyHandler.h

windows/WebViewBridge/WebViewBridge.vcxproj

+<?xml version="1.0" encoding="utf-8"?>
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+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|ARM">
+      <Configuration>Release</Configuration>
+      <Platform>ARM</Platform>
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+    <ProjectConfiguration Include="Release|ARM64">
+      <Configuration>Release</Configuration>
+      <Platform>ARM64</Platform>
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+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{dc466263-7d1f-4907-acd1-cc771d1fdd58}</ProjectGuid>
+    <Keyword>WindowsRuntimeComponent</Keyword>
+    <RootNamespace>WebViewBridge</RootNamespace>
+    <DefaultLanguage>en-US</DefaultLanguage>
+    <MinimumVisualStudioVersion>14.0</MinimumVisualStudioVersion>
+    <AppContainerApplication>true</AppContainerApplication>
+    <ApplicationType>Windows Store</ApplicationType>
+    <WindowsTargetPlatformVersion>10.0.18362.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformMinVersion>10.0.14393.0</WindowsTargetPlatformMinVersion>
+    <ApplicationTypeRevision>10.0</ApplicationTypeRevision>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+  </PropertyGroup>
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windows/WebViewBridge/WebViewBridge.vcxproj.filters

+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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windows/WebViewBridge/pch.cpp

+#include "pch.h"

windows/WebViewBridge/pch.h

+#pragma once
+
+#include <collection.h>
+#include <ppltasks.h>