Add getDiffProps for Paragraph component (facebook#51219)

Summary:
Pull Request resolved: facebook#51219

See title

Changelog: [Internal]

Reviewed By: javache

Differential Revision: D74473177

fbshipit-source-id: 88d8d29a1640fd9217460ac04f172f821bb47a91

Author: Nick Lefever

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

@@ -227,7 +227,8 @@ jni::local_ref<jobject> getProps(
        strcmp(newShadowView.componentName, "Image") == 0 ||
        strcmp(newShadowView.componentName, "ScrollView") == 0 ||
        strcmp(newShadowView.componentName, "RawText") == 0 ||
-       strcmp(newShadowView.componentName, "Text") == 0)) {
+       strcmp(newShadowView.componentName, "Text") == 0 ||
+       strcmp(newShadowView.componentName, "Paragraph") == 0)) {
     return ReadableNativeMap::newObjectCxxArgs(
         newProps->getDiffProps(oldProps));
   }

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

@@ -152,4 +152,76 @@ SharedDebugStringConvertibleList ParagraphProps::getDebugProps() const {
 }
 #endif
 
+#ifdef ANDROID
+
+folly::dynamic ParagraphProps::getDiffProps(const Props* prevProps) const {
+  static const auto defaultProps = ParagraphProps();
+
+  const ParagraphProps* oldProps = prevProps == nullptr
+      ? &defaultProps
+      : static_cast<const ParagraphProps*>(prevProps);
+
+  folly::dynamic result = ViewProps::getDiffProps(oldProps);
+
+  BaseTextProps::appendTextAttributesProps(result, oldProps);
+
+  if (paragraphAttributes.maximumNumberOfLines !=
+      oldProps->paragraphAttributes.maximumNumberOfLines) {
+    result["numberOfLine"] = paragraphAttributes.maximumNumberOfLines;
+  }
+
+  if (paragraphAttributes.ellipsizeMode !=
+      oldProps->paragraphAttributes.ellipsizeMode) {
+    result["ellipsizeMode"] = toString(paragraphAttributes.ellipsizeMode);
+  }
+
+  if (paragraphAttributes.textBreakStrategy !=
+      oldProps->paragraphAttributes.textBreakStrategy) {
+    result["textBreakStrategy"] =
+        toString(paragraphAttributes.textBreakStrategy);
+  }
+
+  if (paragraphAttributes.adjustsFontSizeToFit !=
+      oldProps->paragraphAttributes.adjustsFontSizeToFit) {
+    result["adjustsFontSizeToFit"] = paragraphAttributes.adjustsFontSizeToFit;
+  }
+
+  if (paragraphAttributes.minimumFontScale !=
+      oldProps->paragraphAttributes.minimumFontScale) {
+    result["minimumFontScale"] = paragraphAttributes.minimumFontScale;
+  }
+
+  if (paragraphAttributes.minimumFontSize !=
+      oldProps->paragraphAttributes.minimumFontSize) {
+    result["minimumFontSize"] = paragraphAttributes.minimumFontSize;
+  }
+
+  if (paragraphAttributes.maximumFontSize !=
+      oldProps->paragraphAttributes.maximumFontSize) {
+    result["maximumFontSize"] = paragraphAttributes.maximumFontSize;
+  }
+
+  if (paragraphAttributes.includeFontPadding !=
+      oldProps->paragraphAttributes.includeFontPadding) {
+    result["includeFontPadding"] = paragraphAttributes.includeFontPadding;
+  }
+
+  if (paragraphAttributes.android_hyphenationFrequency !=
+      oldProps->paragraphAttributes.android_hyphenationFrequency) {
+    result["android_hyphenationFrequency"] =
+        toString(paragraphAttributes.android_hyphenationFrequency);
+  }
+
+  if (isSelectable != oldProps->isSelectable) {
+    result["selectable"] = isSelectable;
+  }
+
+  if (onTextLayout != oldProps->onTextLayout) {
+    result["onTextLayout"] = onTextLayout;
+  }
+
+  return result;
+}
+
+#endif
 } // namespace facebook::react

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

@@ -57,6 +57,12 @@ class ParagraphProps : public ViewProps, public BaseTextProps {
 #if RN_DEBUG_STRING_CONVERTIBLE
   SharedDebugStringConvertibleList getDebugProps() const override;
 #endif
+
+#ifdef ANDROID
+
+  folly::dynamic getDiffProps(const Props* prevProps) const override;
+
+#endif
 };
 
 } // namespace facebook::react