Handle dynamic props

Author: bartlomiejbloniarz

packages/react-native/ReactCommon/AnimatedProps.h

@@ -37,7 +37,7 @@ T get(const std::unique_ptr<AnimatedPropBase>& animatedProp){
 
 struct AnimatedProps{
   std::vector<std::unique_ptr<AnimatedPropBase>> props;
-//  std::unique_ptr<RawProps> rest;
+  std::unique_ptr<RawProps> rawProps;
 };
 }
 

packages/react-native/ReactCommon/AnimatedPropsBuilder.h

@@ -13,6 +13,8 @@ namespace facebook::react {
 
 struct AnimatedPropsBuilder{
   std::vector<std::unique_ptr<AnimatedPropBase>> props;
+  std::unique_ptr<RawProps> rawProps;
+  
   void setOpacity(Float value){
     props.push_back(std::make_unique<AnimatedProp<Float>>(OPACITY, value));
   }
@@ -29,13 +31,13 @@ struct AnimatedPropsBuilder{
     props.push_back(std::make_unique<AnimatedProp<Transform>>(TRANSFORM, std::move(t)));
   }
   void storeDynamic(folly::dynamic& d){
-//    animatedProps.rest = std::make_unique<RawProps>(std::move(d));
+    rawProps = std::make_unique<RawProps>(std::move(d));
   }
   void storeJSI(jsi::Runtime& runtime, jsi::Value& value){
-//    animatedProps.rest = std::make_unique<RawProps>(runtime, value);
+    rawProps = std::make_unique<RawProps>(runtime, value);
   }
   AnimatedProps get(){
-    return AnimatedProps{std::move(props)};
+    return AnimatedProps{std::move(props), std::move(rawProps)};
   }
 };
 

packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackend.cpp

@@ -39,9 +39,18 @@ void AnimationBackend::onAnimationFrame(double timestamp) {
       return std::static_pointer_cast<RootShadowNode>(oldRootShadowNode.cloneMultiple(families, [this, families, &updates](const ShadowNode &shadowNode, const ShadowNodeFragment &fragment){
         PropsParserContext propsParserContext{
             shadowNode.getSurfaceId(), *shadowNode.getContextContainer()};
-        auto newProps = shadowNode.getComponentDescriptor().cloneProps(propsParserContext, shadowNode.getProps(), {});
+        
+        auto& animatedProps = updates.at(shadowNode.getTag());
+        
+        Props::Shared newProps;
+        if (animatedProps.rawProps){
+          newProps = shadowNode.getComponentDescriptor().cloneProps(propsParserContext, shadowNode.getProps(), std::move(*animatedProps.rawProps));
+        } else {
+          newProps = shadowNode.getComponentDescriptor().cloneProps(propsParserContext, shadowNode.getProps(), {});
+        }
+        
         auto viewProps = std::const_pointer_cast<BaseViewProps>(std::static_pointer_cast<const BaseViewProps>(newProps));
-        for (auto& animatedProp: updates.at(shadowNode.getTag()).props){
+        for (auto& animatedProp: animatedProps.props){
           switch (animatedProp->propName) {
             case OPACITY:
               viewProps->opacity = get<Float>(animatedProp);