From 8c8412af74025bd1a9d86e16bde264d9911afe20 Mon Sep 17 00:00:00 2001
From: Rachel Fenichel <fenichel@google.com>
Date: Fri, 16 Feb 2018 15:01:13 -0800
Subject: [PATCH] Just check whether the window exists, instead of using
 goog.events.BroswerFeature

---
 core/blockly.js | 7 ++-----
 core/touch.js   | 2 +-
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/core/blockly.js b/core/blockly.js
index d4a7a094b..3aa2cf908 100644
--- a/core/blockly.js
+++ b/core/blockly.js
@@ -55,7 +55,6 @@ goog.require('Blockly.inject');
 goog.require('Blockly.utils');
 
 goog.require('goog.color');
-goog.require('goog.events.BrowserFeature');
 goog.require('goog.userAgent');
 
 
@@ -454,8 +453,7 @@ Blockly.bindEventWithChecks_ = function(node, name, thisObject, func,
 
   var bindData = [];
   // Don't register the mouse event if an equivalent pointer event is supported.
-  if (!goog.events.BrowserFeature.POINTER_EVENTS ||
-      !(name in Blockly.Touch.TOUCH_MAP)) {
+  if ((window && !window.PointerEvent) || !(name in Blockly.Touch.TOUCH_MAP)) {
     node.addEventListener(name, wrapFunc, false);
     bindData.push([node, name, wrapFunc]);
   }
@@ -504,8 +502,7 @@ Blockly.bindEvent_ = function(node, name, thisObject, func) {
 
   var bindData = [];
   // Don't register the mouse event if an equivalent pointer event is supported.
-  if (!goog.events.BrowserFeature.POINTER_EVENTS ||
-      !(name in Blockly.Touch.TOUCH_MAP)) {
+  if ((window && !window.PointerEvent) || !(name in Blockly.Touch.TOUCH_MAP)) {
     node.addEventListener(name, wrapFunc, false);
     bindData.push([node, name, wrapFunc]);
   }
diff --git a/core/touch.js b/core/touch.js
index 7a883c241..78e6f5e72 100644
--- a/core/touch.js
+++ b/core/touch.js
@@ -48,7 +48,7 @@ Blockly.Touch.touchIdentifier_ = null;
  * @type {Object}
  */
 Blockly.Touch.TOUCH_MAP = {};
-if (goog.events.BrowserFeature.POINTER_EVENTS) {
+if (window && window.PointerEvent) {
   Blockly.Touch.TOUCH_MAP = {
     'mousedown': ['pointerdown'],
     'mousemove': ['pointermove'],