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<!DOCTYPE html>
<title>@container: scroll-state(scrolled) user touch scroll</title>
<link rel="help" href="https://drafts.csswg.org/css-conditional-5/#scrolled">
<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>
<script src="/web-animations/testcommon.js"></script>
<script src="/css/css-conditional/container-queries/support/cq-testcommon.js"></script>
<style>
#scroller {
width: 200px;
height: 200px;
container-type: scroll-state;
overflow-y: scroll;
}
#filler {
height: 600px;
}
#target {
--none: no;
--top: no;
--bottom: no;
@container scroll-state(scrolled: none) {
--none: yes;
}
@container scroll-state(scrolled: top) {
--top: yes;
}
@container scroll-state(scrolled: bottom) {
--bottom: yes;
}
}
</style>
<div id="scroller">
<div id="filler">
<div id="target"></div>
</div>
</div>
<script>
setup(() => assert_implements_scroll_state_container_queries());
function touch_scroll(start_pos, end_pos, duration) {
return new test_driver.Actions()
.addPointer("TestPointer", "touch")
.pointerMove(Math.round(start_pos.x), Math.round(start_pos.y))
.pointerDown()
.addTick()
.pause(200)
.pointerMove(Math.round(end_pos.x), Math.round(end_pos.y), {duration: duration})
.addTick()
.pointerUp()
.send();
}
promise_test(async t => {
// Scrollbar element position
const start_pos = {
x: 100,
y: 100,
};
const end_pos = { x: 100, y: 0 };
await touch_scroll(start_pos, end_pos, 1000);
await waitForAnimationFrames(2);
assert_equals(getComputedStyle(target).getPropertyValue("--bottom"), "yes");
}, "Panning gesture scroll is a relative scroll");
promise_test(async t => {
// Scrollbar element position
const start_pos = {
x: 100,
y: 100,
};
const end_pos = { x: 100, y: 150 };
await touch_scroll(start_pos, end_pos, 10);
await waitForAnimationFrames(2);
assert_equals(getComputedStyle(target).getPropertyValue("--top"), "yes");
}, "Fling gesture scroll is a relative scroll");
</script>