| <!DOCTYPE html> |
| <meta name="viewport" content="width=device-width, user-scalable=no"> |
| <link rel="stylesheet" type="text/css" href="resources/animation.css"> |
| <link rel="stylesheet" type="text/css" href="resources/tablet.css"> |
| <script src="resources/perf_test_helper.js"></script> |
| |
| <container id="container"></container> |
| |
| <script> |
| var N = PerfTestHelper.getN(1000); |
| var duration = 1000; |
| |
| var targets = []; |
| function startAnimation(i) { |
| if (targets[i]) { |
| targets[i].style.webkitAnimationName = ((targets[i].i++) % 2 ? '' : 'reverse-') + 'anim'; |
| targets[i].classList.toggle('anim'); |
| return; |
| } |
| var target = document.createElement('target'); |
| target.i = 0; |
| container.appendChild(target); |
| targets[i] = target; |
| } |
| |
| requestAnimationFrame(function(t) { |
| var base = t; |
| var i = 0; |
| |
| function staggeredStart(t) { |
| var elapsed = t - base; |
| for (; i < N && i < N * elapsed / duration; i++) { |
| startAnimation(i); |
| } |
| if (elapsed > duration) { |
| PerfTestHelper.signalReady(); |
| i = 0; |
| base = t - (elapsed % duration); |
| elapsed = 0; |
| } |
| requestAnimationFrame(staggeredStart); |
| } |
| requestAnimationFrame(staggeredStart); |
| }); |
| </script> |
