blob: 30b0193289636e023e009125503e26f8d2ee04c8 [file] [log] [blame]
<!DOCTYPE html> <!-- webkit-test-runner [ internal:AsyncOverflowScrollingEnabled=true ] -->
<html>
<head>
<title>Scrolling tree should show slow-repaint reasons on the overflow and root nodes</title>
<style>
.scroller {
background-color: silver;
border: 1px solid black;
padding: 10px;
width: 400px;
height: 300px;
overflow: scroll;
}
.scrolling-content {
height: 1000px;
}
.fixed-background {
margin-top: 100px;
width: 400px;
height: 300px;
background-image: linear-gradient(green, blue);
}
.adding .fixed-background {
background-attachment: scroll;
}
.removing .fixed-background {
background-attachment: fixed;
}
body.toggled .adding .fixed-background {
background-attachment: fixed;
}
body.toggled .removing .fixed-background {
background-attachment: scroll;
}
body.none .fixed-background {
background-attachment: scroll;
}
</style>
<script src="../../../resources/ui-helper.js"></script>
<script>
if (window.testRunner) {
testRunner.dumpAsText();
testRunner.waitUntilDone();
}
async function doTest()
{
let output = '';
UIHelper.delayFor(0);
output += 'Before toggle:\n';
if (window.internals)
output += window.internals.scrollingStateTreeAsText() + '\n';
document.body.classList.add('toggled');
output += '\nAfter toggle:\n';
if (window.internals)
output += window.internals.scrollingStateTreeAsText() + '\n';
document.body.classList.replace('toggled', 'none');
output += '\nAfter removal:\n';
if (window.internals)
output += window.internals.scrollingStateTreeAsText() + '\n';
document.getElementById('scrollingTree').innerText = output;
if (window.testRunner)
testRunner.notifyDone();
}
window.addEventListener('load', doTest, false);
</script>
</head>
<body>
<div class="scroller adding">
<div class="scrolling-content">
Scrolling content
<div class="fixed-background">
Fixed background
</div>
</div>
</div>
<div class="scroller removing">
<div class="scrolling-content">
Scrolling content
<div class="fixed-background">
Fixed background
</div>
</div>
</div>
<pre id="scrollingTree"></pre>
</body>
</html>