getting ready

1 files changed, 24 insertions, 0 deletions

diff --git a/frontend/imlandscape/js/RequestAnimationFrame.js b/frontend/imlandscape/js/RequestAnimationFrame.js
new file mode 100644
index 0000000..b1940ae
--- /dev/null
+++ b/frontend/imlandscape/js/RequestAnimationFrame.js
@@ -0,0 +1,24 @@
+(function() {
+    var lastTime = 0;
+    var vendors = ['webkit', 'moz'];
+    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 (!window.requestAnimationFrame)
+        window.requestAnimationFrame = function(callback, element) {
+            var currTime = new Date().getTime();
+            var timeToCall = Math.max(0, 16 - (currTime - lastTime));
+            var id = window.setTimeout(function() { callback(currTime + timeToCall); },
+              timeToCall);
+            lastTime = currTime + timeToCall;
+            return id;
+        };
+
+    if (!window.cancelAnimationFrame)
+        window.cancelAnimationFrame = function(id) {
+            clearTimeout(id);
+        };
+}());