| <!DOCTYPE html> |
| <meta name="viewport" content="width=device-width, user-scalable=no"> |
| <link rel="stylesheet" type="text/css" href="resources/tablet.css"> |
| <link rel="stylesheet" type="text/css" href="resources/transition.css"> |
| <script src="resources/perf_test_helper.js"></script> |
| <style> |
| keyframe0 + target { |
| opacity: 0; |
| } |
| keyframe1 + target { |
| opacity: 1; |
| } |
| keyframe0, keyframe1 { |
| display: none; |
| } |
| </style> |
| |
| <container id="container"></container> |
| |
| <script> |
| var N = PerfTestHelper.getN(1000); |
| var duration = 1000; |
| var keyframeValues = [0, 1]; |
| var keyframeStash = [[], []]; |
| var targets = []; |
| |
| for (var i = 0; i < N; i++) { |
| keyframeStash[0].push(document.createElement('keyframe0')); |
| keyframeStash[1].push(document.createElement('keyframe1')); |
| var target = document.createElement('target'); |
| target._keyframe = 0; |
| target.style.transitionDelay = (-i / N * duration) + 'ms'; |
| container.appendChild(target); |
| target.addEventListener('transitionend', restartTransition); |
| targets.push(target); |
| } |
| |
| function restartTransition(event) { |
| var target = event.target; |
| target.style.removeProperty('transition-delay'); |
| keyframeStash[target._keyframe].push(target.previousSibling); |
| target.previousSibling.remove(); |
| target._keyframe ^= 1; |
| container.insertBefore(keyframeStash[target._keyframe].pop(), target); |
| } |
| |
| requestAnimationFrame(function() { |
| targets.forEach(function(target) { |
| container.insertBefore(keyframeStash[0].pop(), target); |
| }); |
| }); |
| |
| PerfTestHelper.signalReady(); |
| </script> |
