1 files changed, 42 insertions, 0 deletions
diff --git a/client/lib/cssEvents.js b/client/lib/cssEvents.js
new file mode 100644
index 00000000..487ba69b
--- /dev/null
+++ b/client/lib/cssEvents.js
@@ -0,0 +1,42 @@
+// XXX Should we use something like Moderniz instead of our custom detector?
+
+var whichTransitionEvent = function() {
+  var t;
+  var el = document.createElement('fakeelement');
+  var transitions = {
+    transition:'transitionend',
+    OTransition:'oTransitionEnd',
+    MSTransition:'msTransitionEnd',
+    MozTransition:'transitionend',
+    WebkitTransition:'webkitTransitionEnd'
+  };
+
+  for (t in transitions) {
+    if (el.style[t] !== undefined) {
+      return transitions[t];
+    }
+  }
+};
+
+var whichAnimationEvent = function() {
+  var t;
+  var el = document.createElement('fakeelement');
+  var transitions = {
+    animation:'animationend',
+    OAnimation:'oAnimationEnd',
+    MSTransition:'msAnimationEnd',
+    MozAnimation:'animationend',
+    WebkitAnimation:'webkitAnimationEnd'
+  };
+
+  for (t in transitions) {
+    if (el.style[t] !== undefined) {
+      return transitions[t];
+    }
+  }
+};
+
+CSSEvents = {
+  transitionend: whichTransitionEvent(),
+  animationend: whichAnimationEvent()
+};