Add JavaScript bindings for YGHasNewLayout (#1631)

Summary:
Adds JavaScript bindings for YGHasNewLayout which introduces
two new node methods: `hasNewLayout()` and `markLayoutSeen()`.

Closes https://github.com/facebook/yoga/issues/681

Pull Request resolved: https://github.com/facebook/yoga/pull/1631

Reviewed By: joevilches

Differential Revision: D55213296

Pulled By: NickGerleman

fbshipit-source-id: 161288c3f54c2b82a6b2b842387916fe8713c2c9

javascript/src/Node.cpp

@@ -421,6 +421,14 @@ bool Node::isDirty(void) const {
   return YGNodeIsDirty(m_node);
 }
 
+void Node::markLayoutSeen() {
+  YGNodeSetHasNewLayout(m_node, false);
+}
+
+bool Node::hasNewLayout(void) const {
+  return YGNodeGetHasNewLayout(m_node);
+}
+
 void Node::calculateLayout(double width, double height, int direction) {
   YGNodeCalculateLayout(
       m_node, width, height, static_cast<YGDirection>(direction));

javascript/src/Node.h

@@ -197,6 +197,8 @@ class Node {
  public: // Dirtiness accessors
   void markDirty(void);
   bool isDirty(void) const;
+  void markLayoutSeen();
+  bool hasNewLayout(void) const;
 
  public: // Layout mutators
   void calculateLayout(double width, double height, int direction);

javascript/src/embind.cpp

@@ -177,6 +177,9 @@ EMSCRIPTEN_BINDINGS(YOGA_LAYOUT) {
       .function("markDirty", &Node::markDirty)
       .function("isDirty", &Node::isDirty)
 
+      .function("markLayoutSeen", &Node::markLayoutSeen)
+      .function("hasNewLayout", &Node::hasNewLayout)
+
       .function("calculateLayout", &Node::calculateLayout)
 
       .function("getComputedLeft", &Node::getComputedLeft)

javascript/src/wrapAssembly.ts

@@ -120,6 +120,8 @@ export type Node = {
   isDirty(): boolean;
   isReferenceBaseline(): boolean;
   markDirty(): void;
+  hasNewLayout(): boolean;
+  markLayoutSeen(): void;
   removeChild(child: Node): void;
   reset(): void;
   setAlignContent(alignContent: Align): void;