From f4625f51823dd7faa02bba95ae731249ce07246c Mon Sep 17 00:00:00 2001
From: Nicolas Gallagher <nicolasgallagher@gmail.com>
Date: Fri, 29 Mar 2019 11:58:29 -0700
Subject: [PATCH] Fix on(Long)PressChange events in experimental press event
 API (#15256)

Make sure that `onPressChange` is only called if `longPressCancelsPress` is `false`.
And make sure that `onLongPressChange` is called when a long press ends.
---
 packages/react-events/src/Press.js | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/packages/react-events/src/Press.js b/packages/react-events/src/Press.js
index 99becac03aef7..3f0340038d3b2 100644
--- a/packages/react-events/src/Press.js
+++ b/packages/react-events/src/Press.js
@@ -80,7 +80,7 @@ function dispatchPressInEvents(
           true,
         );
       }
-      if (props.onLongPress) {
+      if (props.onLongPress && !props.longPressCancelsPress) {
         const longPressEventListener = e => {
           props.onLongPress(e);
           if (e.nativeEvent.defaultPrevented) {
@@ -110,7 +110,7 @@ function dispatchPressOutEvents(
       true,
     );
   }
-  if (props.onPressChange) {
+  if (props.onPressChange && !props.longPressCancelsPress) {
     const pressChangeEventListener = () => {
       props.onPressChange(false);
     };
@@ -121,6 +121,17 @@ function dispatchPressOutEvents(
       true,
     );
   }
+  if (state.isLongPressed && props.onLongPressChange) {
+    const longPressChangeEventListener = () => {
+      props.onLongPressChange(false);
+    };
+    context.dispatchEvent(
+      'longpresschange',
+      longPressChangeEventListener,
+      state.pressTarget,
+      true,
+    );
+  }
 }
 
 function isAnchorTagElement(eventTarget: EventTarget): boolean {