Example wiring up the inspector flag

Author: rozele

packages/playground/windows/playground-win32/Playground-Win32.cpp

@@ -85,6 +85,7 @@ struct WindowData {
 
   winrt::Microsoft::ReactNative::ReactNativeHost Host() noexcept {
     if (!m_host) {
+      winrt::Microsoft::ReactNative::QuirkSettings::SetUseFusebox(true);
       m_host = winrt::Microsoft::ReactNative::ReactNativeHost();
       m_host.InstanceSettings(InstanceSettings());
     }

vnext/Microsoft.ReactNative/QuirkSettings.cpp

@@ -9,10 +9,26 @@
 #include "React.h"
 #include "ReactPropertyBag.h"
 
+#include <react/featureflags/ReactNativeFeatureFlags.h>
+#include <react/featureflags/ReactNativeFeatureFlagsDefaults.h>
+
 namespace winrt::Microsoft::ReactNative::implementation {
 
 QuirkSettings::QuirkSettings() noexcept {}
 
+class QuirkSettingsReactNativeFeatureFlags : public facebook::react::ReactNativeFeatureFlagsDefaults {
+ public:
+  QuirkSettingsReactNativeFeatureFlags(bool enableModernCDPRegistry)
+      : m_enableModernCDPRegistry(enableModernCDPRegistry) {}
+
+  bool inspectorEnableModernCDPRegistry() override {
+    return m_enableModernCDPRegistry;
+  }
+
+ private:
+  bool m_enableModernCDPRegistry;
+};
+
 winrt::Microsoft::ReactNative::ReactPropertyId<bool> MatchAndroidAndIOSStretchBehaviorProperty() noexcept {
   static winrt::Microsoft::ReactNative::ReactPropertyId<bool> propId{
       L"ReactNative.QuirkSettings", L"MatchAndroidAndIOSyStretchBehavior"};
@@ -137,6 +153,10 @@ winrt::Microsoft::ReactNative::ReactPropertyId<bool> IsBridgelessProperty() noex
   ReactPropertyBag(settings.Properties()).Set(UseRuntimeSchedulerProperty(), value);
 }
 
+/*static*/ void QuirkSettings::SetUseFusebox(bool value) noexcept {
+  facebook::react::ReactNativeFeatureFlags::override(std::make_unique<QuirkSettingsReactNativeFeatureFlags>(value));
+}
+
 #pragma endregion IDL interface
 
 /*static*/ bool QuirkSettings::GetMatchAndroidAndIOSStretchBehavior(ReactPropertyBag properties) noexcept {

vnext/Microsoft.ReactNative/QuirkSettings.h

@@ -68,6 +68,8 @@ struct QuirkSettings : QuirkSettingsT<QuirkSettings> {
       winrt::Microsoft::ReactNative::ReactInstanceSettings settings,
       bool value) noexcept;
 
+  static void SetUseFusebox(bool value) noexcept;
+
 #pragma endregion Public API - part of IDL interface
 };
 

vnext/Microsoft.ReactNative/QuirkSettings.idl

@@ -64,6 +64,11 @@ namespace Microsoft.ReactNative
         "By default `react-native-windows` will use the new RuntimeScheduler."
         "Setting this to false will revert the behavior to previous scheduling logic.")
     static void SetUseRuntimeScheduler(ReactInstanceSettings settings, Boolean value);
+
+    DOC_STRING(
+        "By default `react-native-windows` uses the legacy inspector packager connection protocol."
+        "Setting this to true to enable the modern \"Fusebox\" debugging functionality.")
+    static void SetUseFusebox(Boolean value);
   }
 
 } // namespace Microsoft.ReactNative