Fabric: `ConcreteShadowNode::initialStateData()` now accepts a `ShadowNodeFamilyFragment` instead of just a `SurfaceId`

Summary:
We need it to be able pass an `EventEmitter` object to constructed concrete State objects.

Changelog: [Internal] Fabric-specific internal change.

Reviewed By: JoshuaGross

Differential Revision: D21169581

fbshipit-source-id: 3eef0310de7e2f061108aa85c1a39678a43fe85e

ReactCommon/fabric/components/image/ImageShadowNode.h

@@ -43,7 +43,7 @@ class ImageShadowNode final : public ConcreteViewShadowNode<
 
   static ImageState initialStateData(
       ShadowNodeFragment const &fragment,
-      SurfaceId const surfaceId,
+      ShadowNodeFamilyFragment const &familyFragment,
       ComponentDescriptor const &componentDescriptor) {
     auto imageSource = ImageSource{ImageSource::Type::Invalid};
     return {imageSource, {imageSource, nullptr}};

ReactCommon/fabric/components/slider/SliderShadowNode.h

@@ -40,7 +40,7 @@ class SliderShadowNode final : public ConcreteViewShadowNode<
 
   static SliderState initialStateData(
       ShadowNodeFragment const &fragment,
-      SurfaceId const surfaceId,
+      ShadowNodeFamilyFragment const &familyFragment,
       ComponentDescriptor const &componentDescriptor) {
     auto imageSource = ImageSource{ImageSource::Type::Invalid};
     return {imageSource,

ReactCommon/fabric/core/componentdescriptor/ConcreteComponentDescriptor.h

@@ -133,7 +133,7 @@ class ConcreteComponentDescriptor : public ComponentDescriptor {
     return std::make_shared<ConcreteState>(
         std::make_shared<ConcreteStateData const>(
             ConcreteShadowNode::initialStateData(
-                fragment, family->getSurfaceId(), *this)),
+                fragment, ShadowNodeFamilyFragment::build(*family), *this)),
         family);
   }
 

ReactCommon/fabric/core/shadownode/ConcreteShadowNode.h

@@ -82,7 +82,7 @@ class ConcreteShadowNode : public BaseShadowNodeT {
 
   static ConcreteStateData initialStateData(
       ShadowNodeFragment const &fragment,
-      SurfaceId const surfaceId,
+      ShadowNodeFamilyFragment const &familyFragment,
       ComponentDescriptor const &componentDescriptor) {
     return {};
   }

ReactCommon/fabric/core/shadownode/ShadowNodeFamily.h

@@ -87,6 +87,7 @@ class ShadowNodeFamily {
 
  private:
   friend ShadowNode;
+  friend ShadowNodeFamilyFragment;
 
   EventDispatcher::Weak eventDispatcher_;
   mutable std::shared_ptr<State const> mostRecentState_;

ReactCommon/fabric/core/shadownode/ShadowNodeFamilyFragment.cpp

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#include "ShadowNodeFamilyFragment.h"
+
+#include <react/core/ShadowNodeFamily.h>
+
+namespace facebook {
+namespace react {
+
+ShadowNodeFamilyFragment ShadowNodeFamilyFragment::build(
+    ShadowNodeFamily const &family) {
+  return {
+      family.tag_,
+      family.surfaceId_,
+      family.eventEmitter_,
+  };
+}
+
+} // namespace react
+} // namespace facebook

ReactCommon/fabric/core/shadownode/ShadowNodeFamilyFragment.h

@@ -13,6 +13,8 @@
 namespace facebook {
 namespace react {
 
+class ShadowNodeFamily;
+
 /*
  * Note: All of the fields are `const &` references (essentially just raw
  * pointers) which means that the Fragment does not copy/store them nor
@@ -20,6 +22,8 @@ namespace react {
  */
 class ShadowNodeFamilyFragment final {
  public:
+  static ShadowNodeFamilyFragment build(ShadowNodeFamily const &family);
+
   Tag const tag;
   SurfaceId const surfaceId;
   EventEmitter::Shared const &eventEmitter;