From 04d7317cdd95ba00783389f89f6e9a7e1fc418f8 Mon Sep 17 00:00:00 2001
From: Matias Niemelä
Date: Mon, 24 Feb 2014 18:14:29 -0500
Subject: chore(core): introduce a wrapper for requestAnimationFrame

---
 src/AngularPublic.js        |  5 ++++-
 src/ng/raf.js               | 22 ++++++++++++++++++++++
 src/ngMock/angular-mocks.js | 29 +++++++++++++++++++++++++++++
 3 files changed, 55 insertions(+), 1 deletion(-)
 create mode 100644 src/ng/raf.js

(limited to 'src')

diff --git a/src/AngularPublic.js b/src/AngularPublic.js
index 006de9ab..3870c519 100644
--- a/src/AngularPublic.js
+++ b/src/AngularPublic.js
@@ -72,6 +72,8 @@
     $SnifferProvider,
     $TemplateCacheProvider,
     $TimeoutProvider,
+    $$RAFProvider,
+    $AsyncCallbackProvider,
     $WindowProvider
 */
 
@@ -211,7 +213,8 @@ function publishExternalAPI(angular){
         $sniffer: $SnifferProvider,
         $templateCache: $TemplateCacheProvider,
         $timeout: $TimeoutProvider,
-        $window: $WindowProvider
+        $window: $WindowProvider,
+        $$rAF: $$RAFProvider
       });
     }
   ]);
diff --git a/src/ng/raf.js b/src/ng/raf.js
new file mode 100644
index 00000000..f85ee12a
--- /dev/null
+++ b/src/ng/raf.js
@@ -0,0 +1,22 @@
+'use strict';
+
+function $$RAFProvider(){ //rAF
+  this.$get = ['$window', function($window) {
+    var requestAnimationFrame = $window.requestAnimationFrame ||
+                                $window.webkitRequestAnimationFrame;
+
+    var cancelAnimationFrame = $window.cancelAnimationFrame ||
+                               $window.webkitCancelAnimationFrame;
+
+    var raf = function(fn) {
+      var id = requestAnimationFrame(fn);
+      return function() {
+        cancelAnimationFrame(id);
+      };
+    };
+
+    raf.supported = !!requestAnimationFrame;
+
+    return raf;
+  }];
+}
diff --git a/src/ngMock/angular-mocks.js b/src/ngMock/angular-mocks.js
index 9a45939c..efde0f3a 100644
--- a/src/ngMock/angular-mocks.js
+++ b/src/ngMock/angular-mocks.js
@@ -1656,6 +1656,34 @@ angular.mock.$TimeoutDecorator = function($delegate, $browser) {
   return $delegate;
 };
 
+angular.mock.$RAFDecorator = function($delegate) {
+  var queue = [];
+  var rafFn = function(fn) {
+    var index = queue.length;
+    queue.push(fn);
+    return function() {
+      queue.splice(index, 1);
+    };
+  };
+
+  rafFn.supported = $delegate.supported;
+
+  rafFn.flush = function() {
+    if(queue.length === 0) {
+      throw new Error('No rAF callbacks present');
+    }
+
+    var length = queue.length;
+    for(var i=0;i<length;i++) {
+      queue[i]();
+    }
+
+    queue = [];
+  };
+
+  return rafFn;
+};
+
 /**
  *
  */
@@ -1689,6 +1717,7 @@ angular.module('ngMock', ['ng']).provider({
   $rootElement: angular.mock.$RootElementProvider
 }).config(['$provide', function($provide) {
   $provide.decorator('$timeout', angular.mock.$TimeoutDecorator);
+  $provide.decorator('$$rAF', angular.mock.$RAFDecorator);
 }]);
 
 /**
-- 
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