Add some polyfills + utils

1 files changed, 31 insertions, 1 deletions

diff --git a/site/public/assets/javascripts/vendor/polyfill.js b/site/public/assets/javascripts/vendor/polyfill.js
index 411d90f..8c26e80 100644
--- a/site/public/assets/javascripts/vendor/polyfill.js
+++ b/site/public/assets/javascripts/vendor/polyfill.js
@@ -97,4 +97,34 @@ function fullscreen (el) {
   } else if (el.webkitRequestFullscreen) {
     el.webkitRequestFullscreen();
   }
-}
\ No newline at end of file
+}
+
+/*
+ * Proper fullscreen detection using the HTML5
+ * Full Screen API. Not supported on mobile or
+ * IE10 and under
+ * TODO Need to disable fullscreen button on IE10 and lower
+ */
+function isFullScreen() {
+  return !!getFullScreenElement()
+}
+
+function getFullScreenElement() {
+  return document.fullScreenElement ||
+      document.webkitFullscreenElement ||
+      document.mozFullScreenElement ||
+      document.msFullscreenElement
+}
+
+var raf = window.requestAnimationFrame ||
+    window.webkitRequestAnimationFrame ||
+    window.mozRequestAnimationFrame ||
+    window.oRequestAnimationFrame ||
+    window.msRequestAnimationFrame
+
+var caf = window.cancelAnimationFrame ||
+    window.webkitCancelAnimationFrame ||
+    window.mozCancelAnimationFrame ||
+    window.oCancelAnimationFrame ||
+    window.msCancelAnimationFrame
+