From 4e1453eb01ee4d20d6070ec292ae97f589b5087f Mon Sep 17 00:00:00 2001
From: David Vacca <dvacca@fb.com>
Date: Thu, 17 May 2018 09:48:47 -0700
Subject: [PATCH] Add RTL support for Fabric android rendering

Reviewed By: fkgozali

Differential Revision: D8035223

fbshipit-source-id: 22d702e487fd2c20cd03e5004d904ddfcfbdb55a
---
 ReactAndroid/src/main/java/com/facebook/react/fabric/BUCK    | 3 ++-
 .../main/java/com/facebook/react/fabric/FabricUIManager.java | 5 ++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/ReactAndroid/src/main/java/com/facebook/react/fabric/BUCK b/ReactAndroid/src/main/java/com/facebook/react/fabric/BUCK
index da59ddbf2..fc9da7d6b 100644
--- a/ReactAndroid/src/main/java/com/facebook/react/fabric/BUCK
+++ b/ReactAndroid/src/main/java/com/facebook/react/fabric/BUCK
@@ -1,4 +1,4 @@
-load("//ReactNative:DEFS.bzl", "rn_android_library", "react_native_dep", "react_native_target")
+load("//ReactNative:DEFS.bzl", "rn_android_library", "react_native_dep", "YOGA_TARGET", "react_native_target")
 
 rn_android_library(
     name = "fabric",
@@ -11,6 +11,7 @@ rn_android_library(
         "PUBLIC",
     ],
     deps = [
+        YOGA_TARGET,
         react_native_dep("third-party/java/infer-annotations:infer-annotations"),
         react_native_dep("third-party/java/jsr-305:jsr-305"),
         react_native_target("java/com/facebook/react:react"),
diff --git a/ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java b/ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java
index f9d1948ab..c7a539e3e 100644
--- a/ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java
+++ b/ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java
@@ -35,6 +35,7 @@ import com.facebook.react.uimanager.ViewManager;
 import com.facebook.react.uimanager.ViewManagerRegistry;
 import com.facebook.react.uimanager.common.MeasureSpecProvider;
 import com.facebook.react.uimanager.common.SizeMonitoringFrameLayout;
+import com.facebook.yoga.YogaDirection;
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.LinkedList;
@@ -411,7 +412,9 @@ public class FabricUIManager implements UIManager {
   private ReactShadowNode createRootShadowNode(int rootTag, ThemedReactContext themedReactContext) {
     ReactShadowNode rootNode = new ReactShadowNodeImpl();
     I18nUtil sharedI18nUtilInstance = I18nUtil.getInstance();
-    // TODO: setLayoutDirection for the rootNode
+    if (sharedI18nUtilInstance.isRTL(themedReactContext)) {
+      rootNode.setLayoutDirection(YogaDirection.RTL);
+    }
     rootNode.setViewClassName("Root");
     rootNode.setReactTag(rootTag);
     rootNode.setThemedContext(themedReactContext);