From 16079d10506eb4bfa8abdce8449932676db7c4da Mon Sep 17 00:00:00 2001
From: "satyajit.happy" <satyajit.happy@gmail.com>
Date: Sun, 6 Oct 2019 04:17:49 +0200
Subject: [PATCH] fix: actually expose gestureVelocityImpact in the public API

---
 packages/stack/src/types.tsx                 |  5 +++++
 packages/stack/src/views/Stack/Card.tsx      |  4 ++--
 packages/stack/src/views/Stack/Stack.tsx     |  4 +++-
 packages/stack/src/views/Stack/StackItem.tsx | 12 ++++++------
 4 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/packages/stack/src/types.tsx b/packages/stack/src/types.tsx
index 54f15dfc..8d0cbbbb 100644
--- a/packages/stack/src/types.tsx
+++ b/packages/stack/src/types.tsx
@@ -287,6 +287,11 @@ export type StackNavigationOptions = StackHeaderOptions &
        */
       horizontal?: number;
     };
+    /**
+     * Number which determines the relevance of velocity for the gesture.
+     * Defaults to 0.3.
+     */
+    gestureVelocityImpact?: number;
   };
 
 export type StackNavigationConfig = {
diff --git a/packages/stack/src/views/Stack/Card.tsx b/packages/stack/src/views/Stack/Card.tsx
index b08f93a8..0e38e98f 100755
--- a/packages/stack/src/views/Stack/Card.tsx
+++ b/packages/stack/src/views/Stack/Card.tsx
@@ -50,12 +50,12 @@ type Props = ViewProps & {
     vertical?: number;
     horizontal?: number;
   };
+  gestureVelocityImpact: number;
   transitionSpec: {
     open: TransitionSpec;
     close: TransitionSpec;
   };
   styleInterpolator: StackCardStyleInterpolator;
-  gestureVelocityImpact: number;
   containerStyle?: StyleProp<ViewStyle>;
   contentStyle?: StyleProp<ViewStyle>;
 };
@@ -238,8 +238,8 @@ export default class Card extends React.Component<Props> {
     const {
       layout,
       gestureDirection,
-      closing,
       gestureVelocityImpact,
+      closing,
     } = this.props;
     const { width, height } = layout;
 
diff --git a/packages/stack/src/views/Stack/Stack.tsx b/packages/stack/src/views/Stack/Stack.tsx
index 89944170..68586b9c 100755
--- a/packages/stack/src/views/Stack/Stack.tsx
+++ b/packages/stack/src/views/Stack/Stack.tsx
@@ -360,6 +360,7 @@ export default class Stack extends React.Component<Props, State> {
               cardOverlayEnabled,
               cardStyle,
               gestureResponseDistance,
+              gestureVelocityImpact,
               gestureDirection = defaultTransitionPreset.gestureDirection,
               transitionSpec = defaultTransitionPreset.transitionSpec,
               cardStyleInterpolator = defaultTransitionPreset.cardStyleInterpolator,
@@ -424,7 +425,6 @@ export default class Stack extends React.Component<Props, State> {
                   cardOverlayEnabled={cardOverlayEnabled}
                   cardShadowEnabled={cardShadowEnabled}
                   cardStyle={cardStyle}
-                  gestureEnabled={index !== 0 && getGesturesEnabled({ route })}
                   onPageChangeStart={onPageChangeStart}
                   onPageChangeConfirm={onPageChangeConfirm}
                   onPageChangeCancel={onPageChangeCancel}
@@ -441,6 +441,8 @@ export default class Stack extends React.Component<Props, State> {
                   onTransitionStart={this.handleTransitionStart}
                   onTransitionEnd={this.handleTransitionEnd}
                   onGoBack={onGoBack}
+                  gestureEnabled={index !== 0 && getGesturesEnabled({ route })}
+                  gestureVelocityImpact={gestureVelocityImpact}
                   gestureDirection={gestureDirection}
                   {...transitionConfig}
                 />
diff --git a/packages/stack/src/views/Stack/StackItem.tsx b/packages/stack/src/views/Stack/StackItem.tsx
index 230ea4a2..218bfbd1 100644
--- a/packages/stack/src/views/Stack/StackItem.tsx
+++ b/packages/stack/src/views/Stack/StackItem.tsx
@@ -30,7 +30,6 @@ type Props = TransitionPreset & {
   cardOverlayEnabled?: boolean;
   cardShadowEnabled?: boolean;
   cardStyle?: StyleProp<ViewStyle>;
-  gestureEnabled?: boolean;
   getPreviousRoute: (props: {
     route: Route<string>;
   }) => Route<string> | undefined;
@@ -47,15 +46,16 @@ type Props = TransitionPreset & {
   onPageChangeStart?: () => void;
   onPageChangeConfirm?: () => void;
   onPageChangeCancel?: () => void;
+  gestureEnabled?: boolean;
   gestureResponseDistance?: {
     vertical?: number;
     horizontal?: number;
   };
+  gestureVelocityImpact?: number;
   headerMode: StackHeaderMode;
   headerTransparent?: boolean;
   floatingHeaderHeight: number;
   hasCustomHeader: boolean;
-  gestureVelocityImpact?: number;
 };
 
 export default class StackItem extends React.PureComponent<Props> {
@@ -108,10 +108,11 @@ export default class StackItem extends React.PureComponent<Props> {
       cardOverlayEnabled,
       cardShadowEnabled,
       cardStyle,
-      gestureEnabled,
       onPageChangeStart,
       onPageChangeCancel,
+      gestureEnabled,
       gestureResponseDistance,
+      gestureVelocityImpact,
       floatingHeaderHeight,
       hasCustomHeader,
       getPreviousRoute,
@@ -123,7 +124,6 @@ export default class StackItem extends React.PureComponent<Props> {
       transitionSpec,
       cardStyleInterpolator,
       headerStyleInterpolator,
-      gestureVelocityImpact,
     } = this.props;
 
     return (
@@ -141,11 +141,12 @@ export default class StackItem extends React.PureComponent<Props> {
         onClose={this.handleClose}
         overlayEnabled={cardOverlayEnabled}
         shadowEnabled={cardShadowEnabled}
-        gestureEnabled={gestureEnabled}
         onTransitionStart={this.handleTransitionStart}
         onGestureBegin={onPageChangeStart}
         onGestureCanceled={onPageChangeCancel}
+        gestureEnabled={gestureEnabled}
         gestureResponseDistance={gestureResponseDistance}
+        gestureVelocityImpact={gestureVelocityImpact}
         transitionSpec={transitionSpec}
         styleInterpolator={cardStyleInterpolator}
         accessibilityElementsHidden={!focused}
@@ -158,7 +159,6 @@ export default class StackItem extends React.PureComponent<Props> {
         }
         contentStyle={cardStyle}
         style={StyleSheet.absoluteFill}
-        gestureVelocityImpact={gestureVelocityImpact}
       >
         <View style={styles.container}>
           <View style={styles.scene}>