test_animations_playbackrate.html

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<!DOCTYPE html>

<html>

<head>

  <title>Test for Animation.playbackRate on compositor animations</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <script src="/tests/SimpleTest/paint_listener.js"></script>

  <script type="application/javascript" src="animation_utils.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css">

  <style type="text/css">

    @keyframes anim {

      0% { transform: translate(0px) }

      100% { transform: translate(100px) }

    .target {

      /* The animation target needs geometry in order to qualify for OMTA */

      width: 100px;

      height: 100px;

      background-color: white;

  </style>

</head>

<body>

<div id="display"></div>

<script type="application/javascript">

"use strict";

SimpleTest.waitForExplicitFinish();

runOMTATest(function() {

  runAllAsyncAnimTests().then(SimpleTest.finish);

}, SimpleTest.finish, SpecialPowers);

addAsyncAnimTest(async function() {

  var [ div, cs ] = new_div("animation: anim 10s 1 linear forwards");

  var animation = div.getAnimations()[0];

  animation.playbackRate = 10;

  advance_clock(300);

  await waitForPaints();

  omta_is(div, "transform", { tx: 30 }, RunningOn.Compositor,

          "at 300ms");

  done_div();

});

addAsyncAnimTest(async function() {

  var [ div, cs ] = new_div("animation: anim 10s 1 linear forwards");

  var animation = div.getAnimations()[0];

  advance_clock(300);

  await waitForPaints();

  animation.playbackRate = 0;

  await waitForPaintsFlushed();

  omta_is(div, "transform", { tx: 3 }, RunningOn.MainThread,

          "animation with zero playback rate should stay in the " +

          "same position and be running on the main thread");

  done_div();

});

addAsyncAnimTest(async function() {

  var [ div, cs ] = new_div("animation: anim 10s 1s");

  var animation = div.getAnimations()[0];

  animation.playbackRate = 0.5;

  advance_clock(2000); // 1s * (1 / playbackRate)

  await waitForPaints();

  omta_is(div, "transform", { tx: 0 }, RunningOn.Compositor,

          "animation with positive delay and playbackRate > 1 should " +

          "start from the initial position at the beginning of the " +

          "active duration");

  done_div();

});

addAsyncAnimTest(async function() {

  var [ div, cs ] = new_div("animation: anim 10s 1s");

  var animation = div.getAnimations()[0];

  animation.playbackRate = 2.0;

  advance_clock(500); // 1s * (1 / playbackRate)

  await waitForPaints();

  omta_is(div, "transform", { tx: 0 }, RunningOn.Compositor,

          "animation with positive delay and playbackRate < 1 should " +

          "start from the initial position at the beginning of the " +

          "active duration");

  done_div();

});

</script>

</body>

</html>