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Test Info:
- Manifest: layout/reftests/transform/reftest.list
<!DOCTYPE html>
<html class="reftest-wait reftest-no-flush">
<meta name="viewport" content="width=device-width,minimum-scale=1,initial-scale=1">
<!--
A test for a partial pre-rendered transform in an iframe, if the clip
rectangle of the transform animation were wrong, e.g. (800, 1000), the
transform animation janks at the initial position.
-->
<style>
html {
overflow: hidden;
}
body {
margin: 0px;
padding: 0px;
}
</style>
<!-- a half width of the view port -->
<iframe style="width:400px; height:1000px; border: 0"
srcdoc="<!DOCTYPE HTML>
<html>
<style>
html {
overflow: hidden;
scrollbar-width: none;
}
html, body {
margin: 0;
padding: 0;
}
@keyframes anim {
/* the partial prerender area is (1125, 1000), thus */
/* translateX(-725px) is the position where the right edge */
/* of the partial prerender is positioned at the right edge */
/* of the clip rect (400, 1000). */
to { transform: translateX(-725px); }
}
#target {
width: 1600px;
height: 1000px;
transform: translateX(0px);
}
</style>
<div id='target'>
<rect fill='green' x='0' width='800' height='1000'></rect>
<rect fill='blue' x='800' width='325' height='1000'></rect>
<rect fill='red' x='1125' width='675' height='1000'></rect>
</svg>
</div>
<script>
window.addEventListener('message', () => {
if (event.data == 'start') {
target.style.animation = 'anim 100s 1s step-start';
target.addEventListener('animationstart', () => {
parent.postMessage('animationstart', '*');
});
}
});
</script></html>">
</iframe>
<script>
document.addEventListener("MozReftestInvalidate", () => {
document.querySelector("iframe").contentWindow.postMessage("start", "*");
}, { once: true });
window.addEventListener("message", event => {
if (event.data == "animationstart") {
document.documentElement.classList.remove('reftest-wait');
}
});
</script>
</html>