Add getDiffProps for RawText component (#51179)

Summary:
Pull Request resolved: #51179

See title

Changelog: [Internal]

Reviewed By: rshest

Differential Revision: D74365934

fbshipit-source-id: a1db8db1f3f2b63f3e3facd7070e9a12c01cbc5b

Author: Nick Lefever

packages/react-native/ReactAndroid/src/main/jni/react/fabric/FabricMountingManager.cpp

@@ -225,7 +225,8 @@ jni::local_ref<jobject> getProps(
   if ((ReactNativeFeatureFlags::enablePropsUpdateReconciliationAndroid()) &&
       (strcmp(newShadowView.componentName, "View") == 0 ||
        strcmp(newShadowView.componentName, "Image") == 0 ||
-       strcmp(newShadowView.componentName, "ScrollView") == 0)) {
+       strcmp(newShadowView.componentName, "ScrollView") == 0 ||
+       strcmp(newShadowView.componentName, "RawText") == 0)) {
     return ReadableNativeMap::newObjectCxxArgs(
         newProps->getDiffProps(oldProps));
   }

packages/react-native/ReactCommon/react/renderer/components/text/RawTextProps.cpp

@@ -28,4 +28,28 @@ SharedDebugStringConvertibleList RawTextProps::getDebugProps() const {
 }
 #endif
 
+#ifdef ANDROID
+
+folly::dynamic RawTextProps::getDiffProps(const Props* prevProps) const {
+  folly::dynamic result = folly::dynamic::object();
+
+  static const auto defaultProps = RawTextProps();
+
+  const RawTextProps* oldProps = prevProps == nullptr
+      ? &defaultProps
+      : static_cast<const RawTextProps*>(prevProps);
+
+  if (this == oldProps) {
+    return result;
+  }
+
+  if (text != oldProps->text) {
+    result["text"] = text;
+  }
+
+  return result;
+}
+
+#endif
+
 } // namespace facebook::react

packages/react-native/ReactCommon/react/renderer/components/text/RawTextProps.h

@@ -36,6 +36,12 @@ class RawTextProps : public Props {
 #if RN_DEBUG_STRING_CONVERTIBLE
   SharedDebugStringConvertibleList getDebugProps() const override;
 #endif
+
+#ifdef ANDROID
+
+  folly::dynamic getDiffProps(const Props* prevProps) const override;
+
+#endif
 };
 
 } // namespace facebook::react