no-repaint-after-wake-from-sleep.html [plain text]
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Strict//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Test for Bug 39139</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="initial-scale=0.60, minimum-scale=0.60, maximum-scale=0.60">
<style type="text/css">
body {
font-family: 'Lucida Grande', Verdana, Arial;
font-size: 12px;
}
#stage {
margin: 150px auto;
width: 600px;
height: 400px;
/*
Setting the perspective of the contents of the stage
but not the stage itself
*/
-webkit-perspective: 800;
}
#rotate {
margin: 0 auto;
width: 600px;
height: 400px;
/* Ensure that we're in 3D space */
-webkit-transform-style: preserve-3d;
/*
Make the whole set of rows use the x-axis spin animation
for a duration of 7 seconds, running infinitely and linearly
*/
-webkit-animation-name: x-spin;
-webkit-animation-duration: 7s;
-webkit-animation-iteration-count: infinite;
-webkit-animation-timing-function: linear;
}
.ring {
margin: 0 auto;
height: 110px;
width: 600px;
-webkit-transform-style: preserve-3d;
-webkit-animation-iteration-count: infinite;
-webkit-animation-timing-function: linear;
}
.ring > :nth-child(odd) {
background-color: #995C7F;
}
.ring > :nth-child(even) {
background-color: #835A99;
}
.poster {
position: absolute;
left: 250px;
width: 100px;
height: 100px;
opacity: 0.7;
color: rgba(0,0,0,0.9);
-webkit-border-radius: 10px;
}
.poster > p {
font-family: 'Georgia', serif;
font-size: 36px;
font-weight: bold;
text-align: center;
margin-top: 28px;
}
/*
Set up each row to have a different animation duration
and alternating y-axis rotation directions.
*/
#ring-1 {
-webkit-animation-name: y-spin;
-webkit-animation-duration: 5s;
}
#ring-2 {
-webkit-animation-name: back-y-spin;
-webkit-animation-duration: 4s;
}
#ring-3 {
-webkit-animation-name: y-spin;
-webkit-animation-duration: 3s;
}
/*
Here we define each of the three individual animations that
we will be using to have our 3D rotation effect. The first
animation will perform a full rotation on the x-axis, we'll
use that on the whole set of objects. The second and third
animations will perform a full rotation on the y-axis in
opposite directions, alternating directions between rows.
Note that you currently have to specify an intermediate step
for rotations even when you are using individual transformation
constructs.
*/
@-webkit-keyframes x-spin {
0% { -webkit-transform: rotateX(0deg); }
50% { -webkit-transform: rotateX(180deg); }
100% { -webkit-transform: rotateX(360deg); }
}
@-webkit-keyframes y-spin {
0% { -webkit-transform: rotateY(0deg); }
50% { -webkit-transform: rotateY(180deg); }
100% { -webkit-transform: rotateY(360deg); }
}
@-webkit-keyframes back-y-spin {
0% { -webkit-transform: rotateY(360deg); }
50% { -webkit-transform: rotateY(180deg); }
100% { -webkit-transform: rotateY(0deg); }
}
</style>
<script type="text/javascript">
const POSTERS_PER_ROW = 12;
const RING_RADIUS = 200;
function setup_posters (row)
{
var posterAngle = 360 / POSTERS_PER_ROW;
for (var i = 0; i < POSTERS_PER_ROW; i ++) {
var poster = document.createElement('div');
poster.className = 'poster';
var transform = 'rotateY(' + (posterAngle * i) + 'deg) translateZ(' + RING_RADIUS + 'px)';
poster.style.webkitTransform = transform;
var content = poster.appendChild(document.createElement('p'));
content.textContent = i;
row.appendChild(poster);
}
}
function init ()
{
setup_posters(document.getElementById('ring-1'));
setup_posters(document.getElementById('ring-2'));
setup_posters(document.getElementById('ring-3'));
}
window.addEventListener('load', init, false);
</script>
</head>
<body>
<p>This is a test for <a href="https://bugs.webkit.org/show_bug.cgi?id=39139">Bug 39139: Pages
that use hardware acceleration don't repaint after waking computer from sleep</a>. To test, put
your computer to sleep (or "Standby", as Windows calls it). When you wake your computer up, the
animation below should still be running.</p>
<div id="stage">
<div id="rotate">
<div id="ring-1" class="ring"></div>
<div id="ring-2" class="ring"></div>
<div id="ring-3" class="ring"></div>
</div>
</div>
</body>
</html>