From 2444c54654807eb5a42d0cf67fe86a69fbb5a8a1 Mon Sep 17 00:00:00 2001
From: Pieter De Baets <pieterdb@fb.com>
Date: Fri, 28 Jul 2017 02:57:35 -0700
Subject: [PATCH] Fix crash for unsupported device orientation events

Reviewed By: mmmulani

Differential Revision: D5507716

fbshipit-source-id: 061a3060a5ea216028b1fbae81256d17db7f4b2f
---
 React/Modules/RCTUIManager.m | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/React/Modules/RCTUIManager.m b/React/Modules/RCTUIManager.m
index e33be2c51bd..24c80780462 100644
--- a/React/Modules/RCTUIManager.m
+++ b/React/Modules/RCTUIManager.m
@@ -206,7 +206,10 @@ static NSDictionary *deviceOrientationEventBody(UIDeviceOrientation orientation)
       degrees = @90;
       isLandscape = YES;
       break;
-    default:
+    case UIDeviceOrientationFaceDown:
+    case UIDeviceOrientationFaceUp:
+    case UIDeviceOrientationUnknown:
+      // Unsupported
       return nil;
   }
   return @{
@@ -218,11 +221,15 @@ static NSDictionary *deviceOrientationEventBody(UIDeviceOrientation orientation)
 
 - (void)namedOrientationDidChange
 {
-  UIDeviceOrientation deviceOrientation = [UIDevice currentDevice].orientation;
+  NSDictionary *orientationEvent = deviceOrientationEventBody([UIDevice currentDevice].orientation);
+  if (!orientationEvent) {
+    return;
+  }
+
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wdeprecated-declarations"
   [_bridge.eventDispatcher sendDeviceEventWithName:@"namedOrientationDidChange"
-                                              body:deviceOrientationEventBody(deviceOrientation)];
+                                              body:orientationEvent];
 #pragma clang diagnostic pop
 }
 #endif