Serialize ART state into folly::dynamic

Summary:
This diff serializes ART state into folly::dynamic. this is necessary to send this data to Android

changelog: [Internal]

Reviewed By: shergin

Differential Revision: D21657608

fbshipit-source-id: 6c1b69af7d1dbe7de15e509f83c508a38294d89e

ReactCommon/fabric/components/art/conversions.h

@@ -0,0 +1,93 @@
+/*
+ * 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 <Glog/logging.h>
+#include <folly/dynamic.h>
+#include <react/components/art/ARTSurfaceViewState.h>
+#include <react/components/art/Group.h>
+#include <react/components/art/Shape.h>
+#include <react/components/art/Text.h>
+#include <react/components/art/primitives.h>
+
+namespace facebook {
+namespace react {
+
+#ifdef ANDROID
+
+inline folly::dynamic toDynamic(Group const &group);
+inline folly::dynamic toDynamic(Shape const &shape);
+inline folly::dynamic toDynamic(Text const &text);
+inline folly::dynamic toDynamic(Element const &element);
+
+inline folly::dynamic toDynamic(std::vector<Float> const &elements) {
+  folly::dynamic result = folly::dynamic::array();
+  for (auto const &element : elements) {
+    result.push_back(element);
+  }
+  return result;
+}
+inline folly::dynamic toDynamic(Element::ListOfShared const &elements) {
+  folly::dynamic children = folly::dynamic::array();
+  for (auto const &element : elements) {
+    children.push_back(element->getDynamic());
+  }
+  return children;
+}
+
+inline folly::dynamic toDynamic(Group const &group) {
+  folly::dynamic result = folly::dynamic::object();
+  result["opacity"] = group.opacity;
+  result["type"] = 1;
+  if (group.elements.size() > 0) {
+    result["elements"] = toDynamic(group.elements);
+  }
+  result["transform"] = toDynamic(group.transform);
+  return result;
+}
+
+inline folly::dynamic toDynamic(Shape const &shape) {
+  folly::dynamic result = folly::dynamic::object();
+  result["type"] = 2;
+  result["opacity"] = shape.opacity;
+  result["transform"] = toDynamic(shape.transform);
+  result["d"] = toDynamic(shape.d);
+  result["stroke"] = toDynamic(shape.stroke);
+  result["strokeDash"] = toDynamic(shape.strokeDash);
+  result["fill"] = toDynamic(shape.fill);
+  result["strokeWidth"] = shape.strokeWidth;
+  result["strokeCap"] = shape.strokeCap;
+  result["strokeJoin"] = shape.strokeJoin;
+  return result;
+}
+
+inline folly::dynamic toDynamic(Text const &text) {
+  folly::dynamic result = folly::dynamic::object();
+  result["type"] = 3;
+  result["opacity"] = text.opacity;
+  result["transform"] = toDynamic(text.transform);
+  result["d"] = toDynamic(text.d);
+  result["stroke"] = toDynamic(text.stroke);
+  result["strokeDash"] = toDynamic(text.strokeDash);
+  result["fill"] = toDynamic(text.fill);
+  result["strokeWidth"] = text.strokeWidth;
+  result["strokeCap"] = text.strokeCap;
+  result["strokeJoin"] = text.strokeJoin;
+  result["aligment"] = text.aligment;
+  // TODO T64130144: add serialization of Frame
+  // result["aligment"] = toDynamic(text.frame);
+  return result;
+}
+
+inline folly::dynamic toDynamic(ARTSurfaceViewState const &surfaceViewState) {
+  folly::dynamic result = folly::dynamic::object();
+  result["elements"] = toDynamic(surfaceViewState.elements);
+  return result;
+}
+#endif
+
+} // namespace react
+} // namespace facebook

ReactCommon/fabric/components/art/state/Group.cpp

@@ -7,13 +7,14 @@
 
 #include <react/components/art/Group.h>
 #include <react/components/art/Element.h>
+#include <react/components/art/conversions.h>
 
 namespace facebook {
 namespace react {
 
 #ifdef ANDROID
 folly::dynamic Group::getDynamic() const {
-  return folly::dynamic::object();
+  return toDynamic(*this);
 }
 #endif
 

ReactCommon/fabric/components/art/state/Shape.cpp

@@ -7,13 +7,14 @@
 
 #include <react/components/art/Shape.h>
 #include <react/components/art/Element.h>
+#include <react/components/art/conversions.h>
 
 namespace facebook {
 namespace react {
 
 #ifdef ANDROID
 folly::dynamic Shape::getDynamic() const {
-  return folly::dynamic::object();
+  return toDynamic(*this);
 }
 #endif
 

ReactCommon/fabric/components/art/state/Text.cpp

@@ -7,13 +7,14 @@
 
 #include <react/components/art/Text.h>
 #include <react/components/art/Element.h>
+#include <react/components/art/conversions.h>
 
 namespace facebook {
 namespace react {
 
 #ifdef ANDROID
 folly::dynamic Shape::getDynamic() const {
-  return folly::dynamic::object();
+  return toDynamic(*this);
 }
 #endif
 

ReactCommon/fabric/components/art/surfaceview/ARTSurfaceViewState.cpp

@@ -6,6 +6,7 @@
  */
 
 #include <react/components/art/ARTSurfaceViewState.h>
+#include <react/components/art/conversions.h>
 #include <react/debug/debugStringConvertibleUtils.h>
 
 namespace facebook {
@@ -13,7 +14,7 @@ namespace react {
 
 #ifdef ANDROID
 folly::dynamic ARTSurfaceViewState::getDynamic() const {
-  return folly::dynamic::object();
+  return toDynamic(*this);
 }
 #endif