From fb7d27cb850a8c33d16e6b0017b7455d7d600737 Mon Sep 17 00:00:00 2001
From: adroitwhiz <adroitwhiz@protonmail.com>
Date: Mon, 18 May 2020 21:10:55 -0400
Subject: [PATCH] Allow pointer events to be used if supported

---
 src/view/View.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/view/View.js b/src/view/View.js
index 281670f19b..984ddac429 100644
--- a/src/view/View.js
+++ b/src/view/View.js
@@ -53,6 +53,8 @@ var View = Base.extend(Emitter, /** @lends View# */{
             DomElement.setPrefixed(element.style, {
                 userDrag: none,
                 userSelect: none,
+                // Prevent pointer events from doing things like panning the page
+                touchAction: none,
                 touchCallout: none,
                 contentZooming: none,
                 tapHighlightColor: 'rgba(0,0,0,0)'
@@ -1069,7 +1071,7 @@ new function() { // Injection scope for event handling on the browser
     // Touch handling inspired by Hammer.js
     var navigator = window.navigator,
         mousedown, mousemove, mouseup;
-    if (navigator.pointerEnabled || navigator.msPointerEnabled) {
+    if (window.PointerEvent || navigator.msPointerEnabled) {
         // HTML5 / MS pointer events
         mousedown = 'pointerdown MSPointerDown';
         mousemove = 'pointermove MSPointerMove';