| OLD | NEW |
|---|
| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <meta name="viewport" content="width=device-width, user-scalable=no"> |
| 3 <link rel="stylesheet" type="text/css" href="resources/tablet.css"> |
| 4 <link rel="stylesheet" type="text/css" href="resources/transition.css"> |
| 5 <script src="resources/perftesthelper.js"></script> |
| 6 <style> |
| 7 keyframe0 + target { |
| 8 opacity: 0; |
| 9 } |
| 10 keyframe1 + target { |
| 11 opacity: 1; |
| 12 } |
| 13 keyframe0, keyframe1 { |
| 14 display: none; |
| 15 } |
| 16 </style> |
| 17 |
| 18 <container id="container"></container> |
| 19 |
| 20 <script> |
| 21 var N = PerfTestHelper.getN(1000); |
| 22 var duration = 1000; |
| 23 var keyframeValues = [0, 1]; |
| 24 var keyframeStash = [[], []]; |
| 25 var targets = []; |
| 26 |
| 27 for (var i = 0; i < N; i++) { |
| 28 keyframeStash[0].push(document.createElement('keyframe0')); |
| 29 keyframeStash[1].push(document.createElement('keyframe1')); |
| 30 var target = document.createElement('target'); |
| 31 target._keyframe = 0; |
| 32 target.style.transitionDelay = (-i / N * duration) + 'ms'; |
| 33 container.appendChild(target); |
| 34 target.addEventListener('transitionend', restartTransition); |
| 35 targets.push(target); |
| 36 } |
| 37 |
| 38 function restartTransition(event) { |
| 39 var target = event.target; |
| 40 target.style.removeProperty('transition-delay'); |
| 41 keyframeStash[target._keyframe].push(target.previousSibling); |
| 42 target.previousSibling.remove(); |
| 43 target._keyframe ^= 1; |
| 44 container.insertBefore(keyframeStash[target._keyframe].pop(), target); |
| 45 } |
| 46 |
| 47 requestAnimationFrame(function() { |
| 48 targets.forEach(function(target) { |
| 49 container.insertBefore(keyframeStash[0].pop(), target); |
| 50 }); |
| 51 }); |
| 52 |
| 53 PerfTestHelper.signalReady(); |
| 54 </script> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 399393002:
Add CSS Transitions performance tests (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src