Fix issue with prop cloning with custom native props (#14061)

* Fix issue with prop cloning with custom native props * format * prettier * Change files --------- Co-authored-by: React-Native-Windows Bot <[email protected]>
microsoft · Nov 2, 2024 · 59443c8 · 59443c8
1 parent 9da7ddb
commit 59443c8
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Showing 18 changed files with 134 additions and 40 deletions.
diff --git a/change/@react-native-windows-codegen-4ec7c1b2-8541-47d9-a5d0-c245b25fbac1.json b/change/@react-native-windows-codegen-4ec7c1b2-8541-47d9-a5d0-c245b25fbac1.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Fix issue with prop cloning with custom native props",
+  "packageName": "@react-native-windows/codegen",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}
diff --git a/change/react-native-windows-621a9112-d00c-469f-83a8-ae391abefe18.json b/change/react-native-windows-621a9112-d00c-469f-83a8-ae391abefe18.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Fix issue with prop cloning with custom native props",
+  "packageName": "react-native-windows",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}
diff --git a/packages/@react-native-windows/codegen/src/generators/GenerateComponentWindows.ts b/packages/@react-native-windows/codegen/src/generators/GenerateComponentWindows.ts
@@ -38,7 +38,14 @@ const headerTemplate = `/*
 
 const propsTemplate = `REACT_STRUCT(::_PROPS_NAME_::)
 struct ::_PROPS_NAME_:: : winrt::implements<::_PROPS_NAME_::, winrt::Microsoft::ReactNative::IComponentProps> {
-  ::_PROPS_NAME_::(winrt::Microsoft::ReactNative::ViewProps props) : ViewProps(props) {}
+  ::_PROPS_NAME_::(winrt::Microsoft::ReactNative::ViewProps props, const winrt::Microsoft::ReactNative::IComponentProps& cloneFrom)
+    : ViewProps(props)
+  {
+     if (cloneFrom) {
+       auto cloneFromProps = cloneFrom.as<::_PROPS_NAME_::>();
+::_PROP_INITIALIZERS_::  
+     }
+  }
 
   void SetProp(uint32_t hash, winrt::hstring propName, winrt::Microsoft::ReactNative::IJSValueReader value) noexcept {
     winrt::Microsoft::ReactNative::ReadProp(hash, propName, value, *this);
@@ -144,8 +151,10 @@ void Register::_COMPONENT_NAME_::NativeComponent(
       L"::_COMPONENT_NAME_::", [builderCallback](winrt::Microsoft::ReactNative::IReactViewComponentBuilder const &builder) noexcept {
         auto compBuilder = builder.as<winrt::Microsoft::ReactNative::Composition::IReactCompositionViewComponentBuilder>();
 
-        builder.SetCreateProps(
-            [](winrt::Microsoft::ReactNative::ViewProps props) noexcept { return winrt::make<::_COMPONENT_NAME_::Props>(props); });
+        builder.SetCreateProps([](winrt::Microsoft::ReactNative::ViewProps props,
+                              const winrt::Microsoft::ReactNative::IComponentProps& cloneFrom) noexcept {
+            return winrt::make<::_COMPONENT_NAME_::Props>(props, cloneFrom); 
+        });
 
         builder.SetUpdatePropsHandler([](const winrt::Microsoft::ReactNative::ComponentView &view,
                                      const winrt::Microsoft::ReactNative::IComponentProps &newProps,
@@ -296,6 +305,12 @@ export function createComponentGenerator({
           })
           .join('\n');
 
+        const propInitializers = componentShape.props
+          .map(prop => {
+            return `       ${prop.name} = cloneFromProps->${prop.name};`;
+          })
+          .join('\n');
+
         const propObjectTypes = propObjectAliases.jobs
           .map(propObjectTypeName => {
             const propObjectType = propObjectAliases.types[propObjectTypeName]!;
@@ -510,6 +525,7 @@ ${
             .replace(/::_EVENT_EMITTER_NAME_::/g, eventEmitterName)
             .replace(/::_PROPS_NAME_::/g, propsName)
             .replace(/::_COMPONENT_NAME_::/g, componentName)
+            .replace(/::_PROP_INITIALIZERS_::/g, propInitializers)
             .replace(/::_PROPS_FIELDS_::/g, propsFields)
             .replace(/::_NAMESPACE_::/g, namespace)
             .replace(/\n\n\n+/g, '\n\n');

diff --git a/packages/playground/windows/playground-composition/CustomComponent.cpp b/packages/playground/windows/playground-composition/CustomComponent.cpp
@@ -26,7 +26,15 @@ namespace winrt::PlaygroundApp::implementation {
 REACT_STRUCT(CustomXamlComponentProps)
 struct CustomXamlComponentProps
     : winrt::implements<CustomXamlComponentProps, winrt::Microsoft::ReactNative::IComponentProps> {
-  CustomXamlComponentProps(winrt::Microsoft::ReactNative::ViewProps props) : m_props(props) {}
+  CustomXamlComponentProps(
+      winrt::Microsoft::ReactNative::ViewProps props,
+      const winrt::Microsoft::ReactNative::IComponentProps &cloneFrom)
+      : m_props(props) {
+    if (cloneFrom) {
+      auto cloneFromProps = cloneFrom.as<CustomXamlComponentProps>();
+      label = cloneFromProps->label;
+    }
+  }
 
   void SetProp(uint32_t hash, winrt::hstring propName, winrt::Microsoft::ReactNative::IJSValueReader value) noexcept {
     winrt::Microsoft::ReactNative::ReadProp(hash, propName, value, *this);
@@ -139,8 +147,9 @@ struct CustomComponentUserData : winrt::implements<CustomComponentUserData, winr
   static void ConfigureBuilderForCustomComponent(
       winrt::Microsoft::ReactNative::IReactViewComponentBuilder const &builder,
       bool nativeLayout) {
-    builder.SetCreateProps([](winrt::Microsoft::ReactNative::ViewProps props) noexcept {
-      return winrt::make<CustomXamlComponentProps>(props);
+    builder.SetCreateProps([](winrt::Microsoft::ReactNative::ViewProps props,
+                              const winrt::Microsoft::ReactNative::IComponentProps &cloneFrom) noexcept {
+      return winrt::make<CustomXamlComponentProps>(props, cloneFrom);
     });
 
     builder.SetFinalizeUpdateHandler([](const winrt::Microsoft::ReactNative::ComponentView &source,

diff --git a/.../sample-custom-component/codegen/react/components/SampleCustomComponent/DrawingIsland.g.h b/.../sample-custom-component/codegen/react/components/SampleCustomComponent/DrawingIsland.g.h
@@ -13,7 +13,14 @@ namespace winrt::SampleCustomComponent::Codegen {
 
 REACT_STRUCT(DrawingIslandProps)
 struct DrawingIslandProps : winrt::implements<DrawingIslandProps, winrt::Microsoft::ReactNative::IComponentProps> {
-  DrawingIslandProps(winrt::Microsoft::ReactNative::ViewProps props) : ViewProps(props) {}
+  DrawingIslandProps(winrt::Microsoft::ReactNative::ViewProps props, const winrt::Microsoft::ReactNative::IComponentProps& cloneFrom)
+    : ViewProps(props)
+  {
+     if (cloneFrom) {
+       auto cloneFromProps = cloneFrom.as<DrawingIslandProps>();
+
+     }
+  }
 
   void SetProp(uint32_t hash, winrt::hstring propName, winrt::Microsoft::ReactNative::IJSValueReader value) noexcept {
     winrt::Microsoft::ReactNative::ReadProp(hash, propName, value, *this);
@@ -92,8 +99,10 @@ void RegisterDrawingIslandNativeComponent(
       L"DrawingIsland", [builderCallback](winrt::Microsoft::ReactNative::IReactViewComponentBuilder const &builder) noexcept {
         auto compBuilder = builder.as<winrt::Microsoft::ReactNative::Composition::IReactCompositionViewComponentBuilder>();
 
-        builder.SetCreateProps(
-            [](winrt::Microsoft::ReactNative::ViewProps props) noexcept { return winrt::make<DrawingIslandProps>(props); });
+        builder.SetCreateProps([](winrt::Microsoft::ReactNative::ViewProps props,
+                              const winrt::Microsoft::ReactNative::IComponentProps& cloneFrom) noexcept {
+            return winrt::make<DrawingIslandProps>(props, cloneFrom); 
+        });
 
         builder.SetUpdatePropsHandler([](const winrt::Microsoft::ReactNative::ComponentView &view,
                                      const winrt::Microsoft::ReactNative::IComponentProps &newProps,

diff --git a/...es/sample-custom-component/codegen/react/components/SampleCustomComponent/MovingLight.g.h b/...es/sample-custom-component/codegen/react/components/SampleCustomComponent/MovingLight.g.h
@@ -22,7 +22,17 @@ struct MovingLightSpec_MovingLightProps_objectProp {
 
 REACT_STRUCT(MovingLightProps)
 struct MovingLightProps : winrt::implements<MovingLightProps, winrt::Microsoft::ReactNative::IComponentProps> {
-  MovingLightProps(winrt::Microsoft::ReactNative::ViewProps props) : ViewProps(props) {}
+  MovingLightProps(winrt::Microsoft::ReactNative::ViewProps props, const winrt::Microsoft::ReactNative::IComponentProps& cloneFrom)
+    : ViewProps(props)
+  {
+     if (cloneFrom) {
+       auto cloneFromProps = cloneFrom.as<MovingLightProps>();
+       size = cloneFromProps->size;
+       color = cloneFromProps->color;
+       eventParam = cloneFromProps->eventParam;
+       objectProp = cloneFromProps->objectProp;  
+     }
+  }
 
   void SetProp(uint32_t hash, winrt::hstring propName, winrt::Microsoft::ReactNative::IJSValueReader value) noexcept {
     winrt::Microsoft::ReactNative::ReadProp(hash, propName, value, *this);
@@ -142,8 +152,10 @@ void RegisterMovingLightNativeComponent(
       L"MovingLight", [builderCallback](winrt::Microsoft::ReactNative::IReactViewComponentBuilder const &builder) noexcept {
         auto compBuilder = builder.as<winrt::Microsoft::ReactNative::Composition::IReactCompositionViewComponentBuilder>();
 
-        builder.SetCreateProps(
-            [](winrt::Microsoft::ReactNative::ViewProps props) noexcept { return winrt::make<MovingLightProps>(props); });
+        builder.SetCreateProps([](winrt::Microsoft::ReactNative::ViewProps props,
+                              const winrt::Microsoft::ReactNative::IComponentProps& cloneFrom) noexcept {
+            return winrt::make<MovingLightProps>(props, cloneFrom); 
+        });
 
         builder.SetUpdatePropsHandler([](const winrt::Microsoft::ReactNative::ComponentView &view,
                                      const winrt::Microsoft::ReactNative::IComponentProps &newProps,

diff --git a/packages/sample-custom-component/windows/SampleCustomComponent/MovingLight.cpp b/packages/sample-custom-component/windows/SampleCustomComponent/MovingLight.cpp
@@ -18,8 +18,6 @@ struct MovingLight : public winrt::implements<MovingLight, winrt::IInspectable>,
     auto view = sender.as<winrt::Microsoft::ReactNative::Composition::ViewComponentView>();
     if (!oldProps || oldProps->color != newProps->color) {
       m_spotlight.InnerConeColor(newProps->color.AsWindowsColor(view.Theme()));
-    } else {
-      m_spotlight.InnerConeColor(winrt::Windows::UI::Colors::FloralWhite());
     }
 
     if (!oldProps || oldProps->size != newProps->size) {

diff --git a/vnext/Microsoft.ReactNative/Fabric/AbiComponentDescriptor.cpp b/vnext/Microsoft.ReactNative/Fabric/AbiComponentDescriptor.cpp
@@ -106,7 +106,10 @@ facebook::react::Props::Shared AbiComponentDescriptor::cloneProps(
       rawProps);
   auto userProps =
       winrt::get_self<winrt::Microsoft::ReactNative::Composition::ReactCompositionViewComponentBuilder>(m_builder)
-          ->CreateProps(nullptr);
+          ->CreateProps(
+              nullptr,
+              props ? static_cast<winrt::Microsoft::ReactNative::implementation::AbiProps const &>(*props).UserProps()
+                    : nullptr);
   shadowNodeProps->SetUserProps(userProps);
 
   const auto &dynamic = static_cast<folly::dynamic>(rawProps);

diff --git a/vnext/Microsoft.ReactNative/Fabric/AbiViewComponentDescriptor.cpp b/vnext/Microsoft.ReactNative/Fabric/AbiViewComponentDescriptor.cpp
@@ -103,7 +103,7 @@ facebook::react::Props::Shared AbiViewComponentDescriptor::cloneProps(
       winrt::make<winrt::Microsoft::ReactNative::implementation::ViewProps>(shadowNodeProps, false /*holdRef*/);
   auto userProps =
       winrt::get_self<winrt::Microsoft::ReactNative::Composition::ReactCompositionViewComponentBuilder>(m_builder)
-          ->CreateProps(viewProps);
+          ->CreateProps(viewProps, props ? static_cast<AbiViewProps const &>(*props).UserProps() : nullptr);
   shadowNodeProps->SetUserProps(userProps, viewProps);
 
   const auto &dynamic = static_cast<folly::dynamic>(rawProps);

diff --git a/vnext/Microsoft.ReactNative/Fabric/AbiViewProps.cpp b/vnext/Microsoft.ReactNative/Fabric/AbiViewProps.cpp
@@ -65,6 +65,13 @@ winrt::Microsoft::ReactNative::Composition::Experimental::IBrush Color::AsIntern
   return winrt::get_self<winrt::Microsoft::ReactNative::Composition::implementation::Theme>(theme)->Brush(*m_color);
 }
 
+bool Color::Equals(const winrt::Microsoft::ReactNative::Color &color) const noexcept {
+  if (!color) {
+    return false;
+  }
+  return m_color == winrt::get_self<Color>(color)->m_color;
+}
+
 winrt::Microsoft::ReactNative::Color Color::ReadValue(
     const winrt::Microsoft::ReactNative::IJSValueReader &reader) noexcept {
   switch (reader.ValueType()) {

diff --git a/vnext/Microsoft.ReactNative/Fabric/AbiViewProps.h b/vnext/Microsoft.ReactNative/Fabric/AbiViewProps.h
@@ -50,6 +50,8 @@ struct Color : ColorT<Color, Composition::Experimental::IInternalColor> {
   winrt::Microsoft::ReactNative::Composition::Experimental::IBrush AsInternalBrush(
       const winrt::Microsoft::ReactNative::Composition::Theme theme) noexcept;
 
+  bool Equals(const winrt::Microsoft::ReactNative::Color &color) const noexcept;
+
   static winrt::Microsoft::ReactNative::Color ReadValue(
       const winrt::Microsoft::ReactNative::IJSValueReader &reader) noexcept;
   static void WriteValue(

diff --git a/vnext/Microsoft.ReactNative/Fabric/Composition/CompositionViewComponentView.cpp b/vnext/Microsoft.ReactNative/Fabric/Composition/CompositionViewComponentView.cpp
@@ -420,6 +420,10 @@ void ComponentView::ReleasePointerCapture(
       ->ReleasePointerCapture(pointer, static_cast<facebook::react::Tag>(Tag()));
 }
 
+void ComponentView::SetViewFeatures(ComponentViewFeatures viewFeatures) noexcept {
+  m_flags = viewFeatures;
+}
+
 RECT ComponentView::getClientRect() const noexcept {
   RECT rc{0};
   facebook::react::Point parentOffset{0};

diff --git a/vnext/Microsoft.ReactNative/Fabric/Composition/CompositionViewComponentView.h b/vnext/Microsoft.ReactNative/Fabric/Composition/CompositionViewComponentView.h
@@ -55,6 +55,7 @@ struct ComponentView : public ComponentViewT<
   void onGotFocus(const winrt::Microsoft::ReactNative::Composition::Input::RoutedEventArgs &args) noexcept override;
   bool CapturePointer(const winrt::Microsoft::ReactNative::Composition::Input::Pointer &pointer) noexcept;
   void ReleasePointerCapture(const winrt::Microsoft::ReactNative::Composition::Input::Pointer &pointer) noexcept;
+  void SetViewFeatures(ComponentViewFeatures viewFeatures) noexcept;
 
   std::vector<facebook::react::ComponentDescriptorProvider> supplementalComponentDescriptorProviders() noexcept
       override;

diff --git a/vnext/Microsoft.ReactNative/Fabric/Composition/ReactCompositionViewComponentBuilder.cpp b/vnext/Microsoft.ReactNative/Fabric/Composition/ReactCompositionViewComponentBuilder.cpp
@@ -21,8 +21,10 @@ void ReactCompositionViewComponentBuilder::SetCreateProps(ViewPropsFactory impl)
   m_propsFactory = impl;
 }
 
-IComponentProps ReactCompositionViewComponentBuilder::CreateProps(ViewProps props) noexcept {
-  return m_propsFactory(props);
+IComponentProps ReactCompositionViewComponentBuilder::CreateProps(
+    ViewProps props,
+    const IComponentProps &cloneFrom) noexcept {
+  return m_propsFactory(props, cloneFrom);
 }
 
 void ReactCompositionViewComponentBuilder::CreateShadowNode(ShadowNode shadowNode) noexcept {
@@ -72,27 +74,32 @@ void ReactCompositionViewComponentBuilder::InitializeComponentView(
 
 void ReactCompositionViewComponentBuilder::SetComponentViewInitializer(
     const ComponentViewInitializer &initializer) noexcept {
-  m_fnCreateView =
-      [initializer](const IReactContext &reactContext, int32_t tag, const Experimental::ICompositionContext &context) {
-        auto view = winrt::make<winrt::Microsoft::ReactNative::implementation::ComponentView>(tag, reactContext);
-        initializer(view);
-        return view;
-      };
+  m_fnCreateView = [initializer](
+                       const IReactContext &reactContext,
+                       int32_t tag,
+                       const Experimental::ICompositionContext &context,
+                       ComponentViewFeatures) {
+    auto view = winrt::make<winrt::Microsoft::ReactNative::implementation::ComponentView>(tag, reactContext);
+    initializer(view);
+    return view;
+  };
   m_descriptorConstructorFactory = []() {
     return &facebook::react::concreteComponentDescriptorConstructor<::Microsoft::ReactNative::AbiComponentDescriptor>;
   };
 }
 
 void ReactCompositionViewComponentBuilder::SetViewComponentViewInitializer(
     const ViewComponentViewInitializer &initializer) noexcept {
-  m_fnCreateView =
-      [initializer](const IReactContext &reactContext, int32_t tag, const Experimental::ICompositionContext &context) {
-        auto view = winrt::Microsoft::ReactNative::Composition::implementation::ViewComponentView::Create(
-                        context, tag, reactContext)
-                        .as<winrt::Microsoft::ReactNative::Composition::ViewComponentView>();
-        initializer(view);
-        return view;
-      };
+  m_fnCreateView = [initializer](
+                       const IReactContext &reactContext,
+                       int32_t tag,
+                       const Experimental::ICompositionContext &context,
+                       ComponentViewFeatures features) {
+    auto view = winrt::make<implementation::ViewComponentView>(
+        implementation::ViewComponentView::defaultProps(), context, tag, reactContext, features);
+    initializer(view);
+    return view;
+  };
   m_descriptorConstructorFactory = []() {
     return &facebook::react::concreteComponentDescriptorConstructor<
         ::Microsoft::ReactNative::AbiViewComponentDescriptor>;
@@ -101,9 +108,12 @@ void ReactCompositionViewComponentBuilder::SetViewComponentViewInitializer(
 
 void ReactCompositionViewComponentBuilder::SetContentIslandComponentViewInitializer(
     const ComponentIslandComponentViewInitializer &initializer) noexcept {
-  m_fnCreateView = [initializer](
-                       const IReactContext &reactContext, int32_t tag, const Experimental::ICompositionContext &context)
-      -> winrt::Microsoft::ReactNative::Composition::ContentIslandComponentView {
+  m_fnCreateView =
+      [initializer](
+          const IReactContext &reactContext,
+          int32_t tag,
+          const Experimental::ICompositionContext &context,
+          ComponentViewFeatures) -> winrt::Microsoft::ReactNative::Composition::ContentIslandComponentView {
     auto view = winrt::make<winrt::Microsoft::ReactNative::Composition::implementation::ContentIslandComponentView>(
         context, tag, reactContext);
     initializer(view);
@@ -186,12 +196,16 @@ void ReactCompositionViewComponentBuilder::SetCreateVisualHandler(CreateVisualDe
   m_createVisualHandler = impl;
 }
 
+void ReactCompositionViewComponentBuilder::SetViewFeatures(ComponentViewFeatures viewFeatures) noexcept {
+  m_features = viewFeatures;
+}
+
 winrt::Microsoft::ReactNative::ComponentView ReactCompositionViewComponentBuilder::CreateView(
     const IReactContext &reactContext,
     int32_t tag,
     const Experimental::ICompositionContext &context) noexcept {
   assert(m_fnCreateView);
-  auto view = m_fnCreateView(reactContext, tag, context);
+  auto view = m_fnCreateView(reactContext, tag, context, m_features);
   InitializeComponentView(view);
   return view;
 }

diff --git a/vnext/Microsoft.ReactNative/Fabric/Composition/ReactCompositionViewComponentBuilder.h b/vnext/Microsoft.ReactNative/Fabric/Composition/ReactCompositionViewComponentBuilder.h
@@ -42,11 +42,11 @@ struct ReactCompositionViewComponentBuilder : winrt::implements<
  public: // Composition::IReactCompositionViewComponentBuilder
   void SetViewComponentViewInitializer(const ViewComponentViewInitializer &initializer) noexcept;
   void SetContentIslandComponentViewInitializer(const ComponentIslandComponentViewInitializer &initializer) noexcept;
-
   void SetCreateVisualHandler(CreateVisualDelegate impl) noexcept;
+  void SetViewFeatures(ComponentViewFeatures viewFeatures) noexcept;
 
  public:
-  IComponentProps CreateProps(ViewProps props) noexcept;
+  IComponentProps CreateProps(ViewProps props, const IComponentProps &cloneFrom) noexcept;
   void CreateShadowNode(ShadowNode shadowNode) noexcept;
   void CloneShadowNode(ShadowNode shadowNode, ShadowNode sourceShadowNode) noexcept;
   winrt::Windows::Foundation::IInspectable InitialStateData(
@@ -69,10 +69,12 @@ struct ReactCompositionViewComponentBuilder : winrt::implements<
   InitialStateDataFactory m_initialStateDataFactory;
   winrt::Microsoft::ReactNative::MeasureContentHandler m_measureContent;
   winrt::Microsoft::ReactNative::LayoutHandler m_layoutHandler;
+  ComponentViewFeatures m_features{ComponentViewFeatures::Default};
   std::function<winrt::Microsoft::ReactNative::ComponentView(
       const IReactContext &reactContext,
       int32_t tag,
-      const Experimental::ICompositionContext &context)>
+      const Experimental::ICompositionContext &context,
+      ComponentViewFeatures features)>
       m_fnCreateView;
   std::function<facebook::react::ComponentDescriptorConstructor *()> m_descriptorConstructorFactory;
   winrt::Microsoft::ReactNative::HandleCommandDelegate m_customCommandHandler;

diff --git a/vnext/Microsoft.ReactNative/IReactCompositionViewComponentBuilder.idl b/vnext/Microsoft.ReactNative/IReactCompositionViewComponentBuilder.idl
@@ -33,6 +33,7 @@ namespace Microsoft.ReactNative.Composition
     void SetViewComponentViewInitializer(ViewComponentViewInitializer initializer);
     void SetContentIslandComponentViewInitializer(ComponentIslandComponentViewInitializer initializer);
     void SetCreateVisualHandler(CreateVisualDelegate impl);
+    void SetViewFeatures(ComponentViewFeatures viewFeatures);
   };
 
 } // namespace Microsoft.ReactNative
diff --git a/vnext/Microsoft.ReactNative/IReactViewComponentBuilder.idl b/vnext/Microsoft.ReactNative/IReactViewComponentBuilder.idl
@@ -56,7 +56,7 @@ namespace Microsoft.ReactNative
 
   [experimental]
   DOC_STRING("A delegate that creates a @IComponentProps object for an instance of @ViewProps. See @IReactViewComponentBuilder.SetCreateProps")
-  delegate IComponentProps ViewPropsFactory(ViewProps props);
+  delegate IComponentProps ViewPropsFactory(ViewProps props, IComponentProps cloneFrom);
 
   [experimental]
   delegate Windows.Foundation.Size MeasureContentHandler(ShadowNode shadowNode, LayoutContext layoutContext, LayoutConstraints layoutConstraints);

diff --git a/vnext/Microsoft.ReactNative/ViewProps.idl b/vnext/Microsoft.ReactNative/ViewProps.idl
@@ -24,6 +24,8 @@ namespace Microsoft.ReactNative {
     Microsoft.UI.Composition.CompositionBrush AsBrush(Microsoft.ReactNative.Composition.Theme theme);
 #endif
 
+    Boolean Equals(Color color);
+
     static Color Black();
     static Color Transparent();
     static Color ReadValue(IJSValueReader reader);