From 7c86cfa88fb987c73fddb470cb24e48db039f3bd Mon Sep 17 00:00:00 2001
From: "satyajit.happy" <satyajit.happy@gmail.com>
Date: Wed, 17 Jul 2019 14:19:00 +0200
Subject: [PATCH] feat: add a canGoBack prop to header back button

---
 packages/stack/src/types.tsx                      | 1 +
 packages/stack/src/views/Header/HeaderSegment.tsx | 1 +
 2 files changed, 2 insertions(+)

diff --git a/packages/stack/src/types.tsx b/packages/stack/src/types.tsx
index 2cc9b9e3..2615178c 100644
--- a/packages/stack/src/types.tsx
+++ b/packages/stack/src/types.tsx
@@ -140,6 +140,7 @@ export type HeaderBackButtonProps = {
   onLabelLayout?: (e: LayoutChangeEvent) => void;
   screenLayout?: Layout;
   titleLayout?: Layout;
+  canGoBack?: boolean;
 };
 
 export type HeaderTitleProps = {
diff --git a/packages/stack/src/views/Header/HeaderSegment.tsx b/packages/stack/src/views/Header/HeaderSegment.tsx
index 90badfd9..22730bce 100644
--- a/packages/stack/src/views/Header/HeaderSegment.tsx
+++ b/packages/stack/src/views/Header/HeaderSegment.tsx
@@ -313,6 +313,7 @@ export default class HeaderSegment extends React.Component<Props, State> {
                   screenLayout: layout,
                   titleLayout,
                   tintColor: headerTintColor,
+                  canGoBack: Boolean(onGoBack),
                 })}
               </Animated.View>
             ) : null}