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<!DOCTYPE html>
<html class="reftest-wait reftest-no-flush"
reftest-async-scroll
reftest-displayport-x="0" reftest-displayport-y="0"
reftest-displayport-w="800" reftest-displayport-h="2000"
reftest-async-scroll-x="0" reftest-async-scroll-y="1000">
<meta name="viewport" content="width=device-width,minimum-scale=1,initial-scale=1">
<!--
A test that a partial pre-rendered transform animation is in a position:fixed
layer.
-->
<style>
html {
overflow-x: hidden;
}
body {
margin: 0px;
padding: 0px;
}
@keyframes anim {
to { transform: translateY(-500px); }
}
#target {
width: 800px;
height: 1600px;
transform: translateY(-400px);
}
</style>
<div style="width: 800px; height: 2000px"><!-- spacer --></div>
<div style="position: fixed; top: 400px">
<div id="target">
<!--
Put an SVG element so that the transform display item has a blob on
WebRender which means this test properly fails without the proper fix.
-->
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 1600">
<rect fill="green" y="0" width="800" height="1000"></rect>
<rect fill="blue" y="1000" width="800" height="125"></rect>
<rect fill="red" y="1125" width="800" height="875"></rect>
</svg>
</div>
</div>
<script>
document.addEventListener("MozReftestInvalidate", () => {
target.style.animation = "anim 100s 1s step-start";
target.addEventListener("animationstart", () => {
// animtionstart event is fired just before requestAnimationFrame callbacks,
// so we need to wait two rAF to make sure the initial animation value is
// composited on the compositor.
requestAnimationFrame(() => {
requestAnimationFrame(() => {
document.documentElement.classList.remove("reftest-wait");
});
});
});
}, { once: true });
</script>
</html>
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