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<!DOCTYPE html>
<title>Multiple effects on same target driven by individual local time</title>
<link rel="help" href="https://drafts.css-houdini.org/css-animationworklet/">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/web-animations/testcommon.js"></script>
<script src="common.js"></script>
<style>
#target {
width: 100px;
height: 100px;
background-color: green;
}
#target2 {
width: 100px;
height: 100px;
background-color: blue;
box-shadow: 4px 4px 25px blue;
}
</style>
<div id="target"></div>
<script id="simple_animate" type="text/worklet">
registerAnimator("test_animator", class {
animate(currentTime, effect) {
let effects = effect.getChildren();
effects[0].localTime = 0;
effects[1].localTime = 1000;
}
});
</script>
<script>
promise_test(async t => {
await runInAnimationWorklet(document.getElementById('simple_animate').textContent);
const effect = new KeyframeEffect(
document.getElementById("target"),
[
{ background: 'green' },
{ background: 'blue' },
],
{ duration: 2000 }
);
const effect2 = new KeyframeEffect(
document.getElementById("target"),
[
{ width: '100px' },
{ width: '200px' }
],
{ duration: 2000 }
);
const animation = new WorkletAnimation('test_animator', [effect, effect2]);
animation.play();
await waitForAsyncAnimationFrames(1);
assert_equals(getComputedStyle(document.getElementById('target')).backgroundColor, "rgb(0, 128, 0)");
assert_equals(getComputedStyle(document.getElementById('target')).width, "150px");
}, `Animating multiple effects on the same target using effect specific local time should output values
relative to each effects unique local time`);
</script>
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