tools/perf/page_sets/perf_week/css-transitions-simultaneous-by-updating-inline-style.html - Issue 402433004: Test adding perf week tests as smoothness benchmark

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Issue 402433004: Test adding perf week tests as smoothness benchmark (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src

Patch Set: g cl issue Created 6 years, 4 months ago

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(Empty)
	1 <!doctype html>

	2 <meta name="viewport" content="width=device-width, user-scalable=no">

	3 <container id="container"></container>

	4 <script>

	5 var N = 1000;

	6 var duration = 1000;

	7 var targets = [];

	8 var keyframe = 1;

	9 var keyframeValues = [0, 1]

	10

	11 for (var i = 0; i < N; i++) {

	12 var target = document.createElement('target');

	13 container.appendChild(target);

	14 targets.push(target);

	15 }

	16

	17 function startAllAnimations() {

	18 keyframe ^= 1;

	19 targets.forEach(function(target) {

	20 target.style.opacity = keyframeValues[keyframe];

	21 });

	22 }

	23

	24 requestAnimationFrame(startAllAnimations);

	25 setInterval(startAllAnimations, duration);

	26

	27 requestAnimationFrame(function() {

	28 window.measurementReady = true;

	29 });

	30 </script>

	31

	32 <style>

	33 body {

	34 margin: 0;

	35 overflow: hidden;

	36 }

	37 container {

	38 display: flex;

	39 flex-flow: row wrap;

	40 width: 550px;

	41 height: 800px;

	42 background: lightgoldenrodyellow;

	43 }

	44 target {

	45 display: inline-block;

	46 width: 9px; height: 9px;

	47 background: magenta;

	48 transition: opacity 1000ms linear;

	49 }

	50 </style>

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