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<!doctype html>
<meta charset="utf-8">
<title>CSS Test: ::scroll-marker key navigation cycles</title>
<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-pseudo">
<link rel="help" href="https://html.spec.whatwg.org/multipage/interaction.html#attr-tabindex">
<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 {
overflow: auto;
width: 100px;
height: 100px;
scroll-marker-group: before;
white-space: nowrap;
}
#scroller::scroll-marker-group {
display: flex;
height: 10px;
width: 30px;
}
#scroller div {
background: blue;
display: inline-block;
height: 100px;
width: 100px;
}
#scroller div::scroll-marker {
content: "";
background: blue;
width: 10px;
height: 10px;
}
#scroller div::scroll-marker:target-current {
background: green;
}
</style>
<div id="scroller">
<div id="first_item"></div>
<div></div>
<div id="last_item"></div>
</div>
<script>
promise_test(async t => {
await new test_driver.Actions()
.pointerMove(5, 5)
.pointerDown()
.pointerUp()
.send();
assert_equals(getComputedStyle(first_item, "::scroll-marker").backgroundColor, "rgb(0, 128, 0)", "first ::scroll-marker gets activated upon clicking");
await new test_driver.Actions()
.keyDown('\uE012')
.keyUp('\uE012')
.send();
assert_equals(getComputedStyle(last_item, "::scroll-marker").backgroundColor, "rgb(0, 128, 0)", "last ::scroll-marker gets activated by going from the first one");
});
</script>
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