haikuwebkit/LayoutTests/compositing/tiling/huge-layer-with-layer-child...

76 lines
2.2 KiB
HTML

<!DOCTYPE html>
<html>
<head>
<style>
#container {
width: 500px;
height: 500px;
border: 1px solid black;
background-color: yellow;
-webkit-transform:translateZ(0);
}
.box {
position: absolute;
left:50px;
width: 200px;
height: 200px;
-webkit-transform:translateZ(0);
}
.at-the-top {
top: 100px;
background-color: red;
}
.at-the-bottom {
top:200px;
left: 275px;
background-color: blue;
}
</style>
<script>
if (window.testRunner)
testRunner.dumpAsText();
var result = "";
function testOnLoad()
{
// Small layer first
if (window.testRunner)
result = "First (small layer):<br>" + window.internals.layerTreeAsText(document);
// Huge layer second
document.getElementById('container').style.height = "5000px";
document.getElementById('blue-box').style.top = "4700px";
if (window.testRunner)
result += "<br><br>Second (huge layer):<br>" + window.internals.layerTreeAsText(document);
// Small layer third
document.getElementById('container').style.height = "500px";
document.getElementById('blue-box').style.top = "200px";
if (window.testRunner) {
result += "<br><br>Third (small layer):<br>" + window.internals.layerTreeAsText(document);
document.getElementById('layers').innerHTML = result;
}
}
window.addEventListener('load', testOnLoad, false);
</script>
</head>
<body>
<p>
The yellow box should be 500 x 500 on startup. Then it should
stretch to be 500 x 5000, then shrink back down to 500 x 500.
This tests that we can resize to a huge layer and back again
and still maintain integrity of the layer tree.
</p>
<div id="container">
<div class="box at-the-top"></div>
<div id="blue-box" class="box at-the-bottom"></div>
</div>
<pre id="layers">Layer tree appears here in DRT.</pre>
</body>
</html>