tools/perf/page_sets/tough_animation_cases/css_transitions_simultaneous_by_updating_class.html - Issue 399393002: Add CSS Transitions performance tests

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Side by Side Diff: tools/perf/page_sets/tough_animation_cases/css_transitions_simultaneous_by_updating_class.html

Issue 399393002: Add CSS Transitions performance tests (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src

Patch Set: Appease linter Created 6 years, 2 months ago

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	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 {

	8 opacity: 0;

	9 }

	10 .keyframe1 {

	11 opacity: 1;

	12 }

	13 </style>

	14

	15 <container id="container"></container>

	16

	17 <script>

	18 var N = PerfTestHelper.getN(1000);

	19 var duration = 1000;

	20 var keyframe = 1;

	21 var targets = [];

	22

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

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

	25 container.appendChild(target);

	26 targets.push(target);

	27 }

	28

	29 function startAllTransitions() {

	30 keyframe ^= 1;

	31 targets.forEach(function(target) {

	32 target.className = 'keyframe' + keyframe;

	33 });

	34 }

	35

	36 requestAnimationFrame(startAllTransitions);

	37 setInterval(startAllTransitions, duration);

	38

	39 PerfTestHelper.signalReady();

	40 </script>

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