From 0a517ae43892fb764d829f8bae56c1ac58356b1b Mon Sep 17 00:00:00 2001
From: Xin Chen <xch@fb.com>
Date: Wed, 23 Mar 2022 22:21:29 -0700
Subject: [PATCH] RN] Add public API to ReactRootView to control if JS touch
 events are dispatched

Summary: This diff adds flag to `ReactRootView` to control if the touch event is to be dispatched to the JS side. This is needed for subclass of `ReactRootView` to control if the dispatch is needed.

Reviewed By: javache

Differential Revision: D35033684

fbshipit-source-id: febab6988cc3e4259e726d03d797dd0ffc978d24
---
 .../java/com/facebook/react/ReactRootView.java     | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/ReactAndroid/src/main/java/com/facebook/react/ReactRootView.java b/ReactAndroid/src/main/java/com/facebook/react/ReactRootView.java
index 3d5ee968202..89fff09bd7b 100644
--- a/ReactAndroid/src/main/java/com/facebook/react/ReactRootView.java
+++ b/ReactAndroid/src/main/java/com/facebook/react/ReactRootView.java
@@ -234,15 +234,25 @@ public class ReactRootView extends FrameLayout implements RootView, ReactRoot {
     return true;
   }
 
+  // By default the JS touch events are dispatched at the root view. This can be overridden in
+  // subclasses as needed.
+  public boolean shouldDispatchJSTouchEvent(MotionEvent ev) {
+    return true;
+  }
+
   @Override
   public boolean onInterceptTouchEvent(MotionEvent ev) {
-    dispatchJSTouchEvent(ev);
+    if (shouldDispatchJSTouchEvent(ev)) {
+      dispatchJSTouchEvent(ev);
+    }
     return super.onInterceptTouchEvent(ev);
   }
 
   @Override
   public boolean onTouchEvent(MotionEvent ev) {
-    dispatchJSTouchEvent(ev);
+    if (shouldDispatchJSTouchEvent(ev)) {
+      dispatchJSTouchEvent(ev);
+    }
     super.onTouchEvent(ev);
     // In case when there is no children interested in handling touch event, we return true from
     // the root view in order to receive subsequent events related to that gesture