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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Values Test: ::scroll-marker activation of multiple markers</title>
<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-activation">
<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 {
width: 600px;
height: 300px;
overflow: auto;
scroll-marker-group: before;
white-space: nowrap;
}
#scroller div {
background: green;
display: inline-block;
width: 600px;
height: 200px;
}
#scroller::scroll-marker-group {
display: flex;
height: 20px;
width: 140px;
}
#scroller div::scroll-marker {
content: "";
width: 20px;
height: 20px;
background-color: red;
display: inline-block;
}
#scroller div::scroll-marker:target-current {
background-color: green;
}
</style>
<div id="scroller">
<div></div>
<div id="firstTarget"></div>
<div></div>
<div></div>
<div></div>
<div id="secondTarget"></div>
<div></div>
</div>
<script>
promise_test(async t => {
const firstTarget = document.getElementById("firstTarget");
const secondTarget = document.getElementById("secondTarget");
const firstTargetScrollMarkerX = 30;
const firstTargetScrollMarkerY = 10;
const secondTargetScrollMarkerX = 110;
const secondTargetScrollMarkerY = 10;
// Ensure the scroll markers are not active before activation.
assert_equals(getComputedStyle(firstTarget, "::scroll-marker").backgroundColor, "rgb(255, 0, 0)", "first target ::scroll-marker is not active before activation");
assert_equals(getComputedStyle(secondTarget, "::scroll-marker").backgroundColor, "rgb(255, 0, 0)", "second target ::scroll-marker is not active before activation");
// Activate the first target's scroll marker.
await new test_driver.Actions()
.pointerMove(firstTargetScrollMarkerX, firstTargetScrollMarkerY)
.pointerDown()
.pointerUp()
.send();
assert_equals(getComputedStyle(firstTarget, "::scroll-marker").backgroundColor, "rgb(0, 128, 0)", "first target ::scroll-marker is :target-current after activation");
assert_equals(getComputedStyle(secondTarget, "::scroll-marker").backgroundColor, "rgb(255, 0, 0)", "second target ::scroll-marker is not active when the first is activated");
// Activate the second target's scroll marker.
await new test_driver.Actions()
.pointerMove(secondTargetScrollMarkerX, secondTargetScrollMarkerY)
.pointerDown()
.pointerUp()
.send();
assert_equals(getComputedStyle(firstTarget, "::scroll-marker").backgroundColor, "rgb(255, 0, 0)", "first target ::scroll-marker is not when the second is activated");
assert_equals(getComputedStyle(secondTarget, "::scroll-marker").backgroundColor, "rgb(0, 128, 0)", "second target ::scroll-marker is :target-current after activation");
// Activate the first target's scroll marker again.
await new test_driver.Actions()
.pointerMove(firstTargetScrollMarkerX, firstTargetScrollMarkerY)
.pointerDown()
.pointerUp()
.send();
assert_equals(getComputedStyle(firstTarget, "::scroll-marker").backgroundColor, "rgb(0, 128, 0)", "first target ::scroll-marker is :target-current after activation");
assert_equals(getComputedStyle(secondTarget, "::scroll-marker").backgroundColor, "rgb(255, 0, 0)", "second target ::scroll-marker is not active when the first is activated again");
});
</script>
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