From 762b4fe3e9ac4c3f16000ab8ced99929fa2f58bd Mon Sep 17 00:00:00 2001
From: Max Franz <maxkfranz@gmail.com>
Date: Wed, 16 Aug 2017 11:20:49 -0400
Subject: [PATCH] Some versions of IE on some versions of Windows report
 `event.pointerType` as an int #1931 #1933

---
 src/extensions/renderer/base/load-listeners.js | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/extensions/renderer/base/load-listeners.js b/src/extensions/renderer/base/load-listeners.js
index 23ee1c773a..41fe42ae63 100644
--- a/src/extensions/renderer/base/load-listeners.js
+++ b/src/extensions/renderer/base/load-listeners.js
@@ -1984,8 +1984,12 @@ BRp.load = function(){
       } );
     };
 
+    var pointerIsMouse = function( e ){
+      return e.pointerType === 'mouse' || e.pointerType === 4;
+    };
+
     r.registerBinding( r.container, 'pointerdown', function( e ){
-      if( e.pointerType === 'mouse' ){ return; } // mouse already handled
+      if( pointerIsMouse(e) ){ return; } // mouse already handled
 
       e.preventDefault();
 
@@ -1996,7 +2000,7 @@ BRp.load = function(){
     } );
 
     r.registerBinding( r.container, 'pointerup', function( e ){
-      if( e.pointerType === 'mouse' ){ return; } // mouse already handled
+      if( pointerIsMouse(e) ){ return; } // mouse already handled
 
       removePointer( e );
 
@@ -2005,7 +2009,7 @@ BRp.load = function(){
     } );
 
     r.registerBinding( r.container, 'pointercancel', function( e ){
-      if( e.pointerType === 'mouse' ){ return; } // mouse already handled
+      if( pointerIsMouse(e) ){ return; } // mouse already handled
 
       removePointer( e );
 
@@ -2014,7 +2018,7 @@ BRp.load = function(){
     } );
 
     r.registerBinding( r.container, 'pointermove', function( e ){
-      if( e.pointerType === 'mouse' ){ return; } // mouse already handled
+      if( pointerIsMouse(e) ){ return; } // mouse already handled
 
       e.preventDefault();