From 355583adc89d31928c0c0fc74cd3ea597d5426ff Mon Sep 17 00:00:00 2001
From: Jason Killian <jason.killian@trialspark.com>
Date: Tue, 23 Oct 2018 14:57:56 -0400
Subject: [PATCH] add horizontal prop to tabBarIcon option

---
 types/react-navigation/index.d.ts                 | 5 +++--
 types/react-navigation/react-navigation-tests.tsx | 3 ++-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/types/react-navigation/index.d.ts b/types/react-navigation/index.d.ts
index 1bdf43bc35..1572c94e25 100644
--- a/types/react-navigation/index.d.ts
+++ b/types/react-navigation/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for react-navigation 2.0
+// Type definitions for react-navigation 2.13
 // Project: https://github.com/react-navigation/react-navigation
 // Definitions by: Huhuanming <https://github.com/huhuanming>
 //                 mhcgrq <https://github.com/mhcgrq>
@@ -25,6 +25,7 @@
 //                 Denis Frezzato <https://github.com/DenisFrezzato>
 //                 Mickael Wegerich <https://github.com/mickaelw>
 //                 Max Davidson <https://github.com/maxdavidson>
+//                 Jason Killian <https://github.com/jkillian>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.8
 
@@ -518,7 +519,7 @@ interface NavigationTabScreenOptionsBase {
   tabBarIcon?:
   | React.ReactElement<any>
   | ((
-    options: { tintColor: string | null; focused: boolean }
+    options: { tintColor: string | null; focused: boolean; horizontal: boolean }
   ) => React.ReactElement<any> | null);
   tabBarLabel?:
   | string
diff --git a/types/react-navigation/react-navigation-tests.tsx b/types/react-navigation/react-navigation-tests.tsx
index 47dd7baa0e..1b6bff2586 100644
--- a/types/react-navigation/react-navigation-tests.tsx
+++ b/types/react-navigation/react-navigation-tests.tsx
@@ -179,7 +179,8 @@ const tabNavigatorConfig: TabNavigatorConfig = {
     tabBarComponent: TabBarTop,
     tabBarOptions: { activeBackgroundColor: "blue" },
     navigationOptions: () => ({
-        tabBarOnPress: ({ scene, jumpToIndex }) => jumpToIndex(scene.index)
+        tabBarOnPress: ({ scene, jumpToIndex }) => jumpToIndex(scene.index),
+        tabBarIcon: ({ horizontal }) => <View />,
     })
 };