RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 05:27:46 +00:00
Code Issues Activity Actions

LibWeb: Use offset of nearest scrollable ancestor for positioned boxes

Browse source 
Because positioned descendants are painted out-of-order we need to
separately apply offset of nearest scrollable box for them.

Fixes https://github.com/SerenityOS/serenity/issues/20554
This commit is contained in:
Aliaksandr Kalenik 2023-12-11 16:57:47 +01:00 • committed by Andreas Kling
parent 2952f01e84
commit 6b79508c08
5 changed files with 167 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

73
Tests/LibWeb/Ref/positioned-elements-in-scroll-container.html Normal file
View file

@ -0,0 +1,73 @@
<html>
<link rel="match" href="reference/positioned-elements-in-scroll-container-ref.html" />
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
html {
height: 100%;
position: relative;
}
body {
height: 100%;
}
article {
overflow-x: scroll;
overflow-y: scroll;
width: 500px;
height: 500px;
border: 1px solid black;
}
.card {
margin: 2rem;
height: 30rem;
background-color: #bbb;
position: relative; /* is not positioned in the reference html */
}
</style>
<main>
<article id="scrollcontainer">
<h1>Fly away to victory!</h1>
<div>
<p>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat
non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
</p>
<div class="card">A card!</div>
<p>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat
non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
</p>
<p>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat
non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
</p>
</div>
</article>
</main>
<script>
const scrollContainer = document.getElementById("scrollcontainer");
scrollContainer.scrollTop = 100;
</script>
</html>