Source code
Revision control
Copy as Markdown
Other Tools
<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Overflow: event.target for detached ::scroll-marker is its originating element</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<style>
body {
margin: 0;
}
#scroller {
position: absolute;
top: 100px;
width: 600px;
height: 300px;
overflow: auto;
scroll-marker-group: before;
white-space: nowrap;
}
#scroller div {
display: inline-block;
width: 600px;
height: 270px;
}
#scroller::scroll-marker-group {
position: absolute;
top: 0;
display: flex;
height: 20px;
width: 40px;
}
.sm::scroll-marker {
content: "";
width: 100px;
height: 20px;
display: inline-block;
}
</style>
<div id="scroller">
<div id="originatingElement" class="sm"></div>
<div></div>
</div>
<script>
let event = null;
originatingElement.addEventListener('click', (e) => {
event = e;
});
promise_test(async t => {
// Click on ::scroll-marker
const scrollMarkerX = 15;
const scrollMarkerY = 15;
await new test_driver.Actions()
.pointerMove(scrollMarkerX, scrollMarkerY)
.pointerDown()
.pointerUp()
.send();
assert_equals(event.target, originatingElement, "event.target for ::scroll-marker click is its originating element");
originatingElement.classList.remove("sm");
assert_equals(event.target, originatingElement, "event.target for detached ::scroll-marker click is its originating element");
});
</script>