зеркало из https://github.com/mozilla/gecko-dev.git
110 строки
2.3 KiB
HTML
110 строки
2.3 KiB
HTML
<!DOCTYPE html>
|
|
<html lang="en" class="reftest-wait"
|
|
reftest-displayport-x="0"
|
|
reftest-displayport-y="0"
|
|
reftest-displayport-w="800"
|
|
reftest-displayport-h="1000">
|
|
<meta charset="utf-8">
|
|
<title>Things overlapping active scrollboxes should be in a layer on top of the scrolled contents.</title>
|
|
|
|
<style>
|
|
|
|
div {
|
|
height: 50px;
|
|
border: 1px solid;
|
|
box-model: border-box;
|
|
}
|
|
|
|
.first, .second {
|
|
border-color: blue;
|
|
margin: 50px 0;
|
|
}
|
|
|
|
.overlap {
|
|
border-color: #088;
|
|
margin-left: 100px;
|
|
width: 80px;
|
|
margin-bottom: -30px;
|
|
position: relative;
|
|
}
|
|
|
|
.scrollable {
|
|
height: auto;
|
|
overflow: auto;
|
|
}
|
|
|
|
.scrollarea {
|
|
width: 5000px;
|
|
border: none;
|
|
padding: 10px 0 20px;
|
|
height: auto;
|
|
}
|
|
|
|
.scrolled {
|
|
margin-left: 220px;
|
|
width: 100px;
|
|
height: 100px;
|
|
border-color: red;
|
|
}
|
|
|
|
body {
|
|
margin: 0;
|
|
padding: 0 100px;
|
|
height: 3000px;
|
|
}
|
|
|
|
</style>
|
|
|
|
<div class="first" reftest-assigned-layer="page-background">
|
|
<!--
|
|
This is just a regular box, it should end up in the page background layer.
|
|
-->
|
|
</div>
|
|
|
|
<div class="overlap reftest-no-paint">
|
|
<!--
|
|
This item intersects with the scrollable box and is positioned above
|
|
.scrolled, in z-order, so it should be split into its own layer as soon
|
|
as the scrollbox gets active scrolling. The splitting should not wait for
|
|
.scrolled to move under .overlap.
|
|
-->
|
|
</div>
|
|
|
|
<div class="scrollable">
|
|
<div class="scrollarea">
|
|
<div class="scrolled reftest-opaque-layer">
|
|
<!--
|
|
This will move under .overlap by .scrollable being scrolled. This
|
|
action should not invalidate .overlap.
|
|
|
|
Furthermore, since the background of .scrollable is uniform and opaque,
|
|
.scrolled should be able to pull up that background color and become
|
|
opaque itself.
|
|
-->
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="second" reftest-assigned-layer="page-background">
|
|
<!--
|
|
This should share a layer with .first and the page background.
|
|
-->
|
|
</div>
|
|
|
|
<script>
|
|
|
|
var scrollable = document.querySelector(".scrollable");
|
|
|
|
function doTest() {
|
|
scrollable.scrollLeft = 100;
|
|
document.documentElement.removeAttribute("class");
|
|
}
|
|
|
|
// Make .scrollable start out with active scrolling.
|
|
scrollable.scrollLeft = 0;
|
|
scrollable.scrollLeft = 20;
|
|
document.addEventListener("MozReftestInvalidate", doTest);
|
|
|
|
</script>
|
|
|