The requestAnimationFrame polyfill no longer expects a Browserify environment and uses window through-out.

Author: photonstorm

src/polyfills/requestAnimationFrame.js

@@ -5,48 +5,31 @@
 // https://gist.github.com/timhall/4078614
 // https://github.com/Financial-Times/polyfill-service/tree/master/polyfills/requestAnimationFrame
 
-// Expected to be used with Browserify
-// Browserify automatically detects the use of `global` and passes the
-// correct reference of `global`, `self`, and finally `window`
-
-// Date.now
-if (!(Date.now && Date.prototype.getTime)) {
-    Date.now = function now() {
-        return new Date().getTime();
-    };
-}
-
-// performance.now
-if (!(global.performance && global.performance.now)) {
-    var startTime = Date.now();
-    if (!global.performance) {
-        global.performance = {};
-    }
-    global.performance.now = function () {
-        return Date.now() - startTime;
-    };
-}
-
 // requestAnimationFrame
 var lastTime = Date.now();
-var vendors = ['ms', 'moz', 'webkit', 'o'];
 
-for(var x = 0; x < vendors.length && !global.requestAnimationFrame; ++x) {
-    global.requestAnimationFrame = global[vendors[x] + 'RequestAnimationFrame'];
-    global.cancelAnimationFrame = global[vendors[x] + 'CancelAnimationFrame'] ||
-        global[vendors[x] + 'CancelRequestAnimationFrame'];
+var vendors = [ 'ms', 'moz', 'webkit', 'o' ];
+
+for (var x = 0; x < vendors.length && !window.requestAnimationFrame; x++)
+{
+    window.requestAnimationFrame = window[vendors[x] + 'RequestAnimationFrame'];
+    window.cancelAnimationFrame = window[vendors[x] + 'CancelAnimationFrame'] || window[vendors[x] + 'CancelRequestAnimationFrame'];
 }
 
-if (!global.requestAnimationFrame) {
-    global.requestAnimationFrame = function (callback) {
-        if (typeof callback !== 'function') {
+if (!window.requestAnimationFrame)
+{
+    window.requestAnimationFrame = function (callback)
+    {
+        if (typeof callback !== 'function')
+        {
             throw new TypeError(callback + 'is not a function');
         }
 
-        var currentTime = Date.now(),
-            delay = 16 + lastTime - currentTime;
+        var currentTime = Date.now();
+        var delay = 16 + lastTime - currentTime;
 
-        if (delay < 0) {
+        if (delay < 0)
+        {
             delay = 0;
         }
 
@@ -59,8 +42,10 @@ if (!global.requestAnimationFrame) {
     };
 }
 
-if (!global.cancelAnimationFrame) {
-    global.cancelAnimationFrame = function(id) {
+if (!window.cancelAnimationFrame)
+{
+    window.cancelAnimationFrame = function(id)
+    {
         clearTimeout(id);
     };
 }