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Test Info: Warnings
- This test has a WPT meta file that expects 1 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /css/css-conditional/container-queries/scroll-state/scroll-state-scrolled-scrollbar-button-clicks.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>@container: scroll-state(scrolled) user mouse drag scroll</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>
<script src="/web-animations/testcommon.js"></script>
<script src="/dom/events/scrolling/scroll_support.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;
--y: no;
@container scroll-state(scrolled: none) {
--none: yes;
}
@container scroll-state(scrolled: y) {
--y: yes;
}
}
</style>
<div id="scroller">
<div id="filler">
<div id="target"></div>
</div>
</div>
<script>
setup(() => assert_implements_scroll_state_container_queries());
function scrollbar_track_click(track_position) {
return new test_driver.Actions()
.addPointer("TestPointer", "mouse")
.pointerMove(Math.round(track_position.x), Math.round(track_position.y))
.pointerDown()
.pointerUp()
.send();
}
promise_test(async t => {
// Skip test on platforms that do not have a visible scrollbar (e.g.
// overlay scrollbar) since it wouldn't have scrollbar buttons.
const scrollbar_width = scroller.offsetWidth - scroller.clientWidth;
if (scrollbar_width == 0) {
return;
}
assert_equals(scroller.scrollTop, 0);
let scrollEndPromise = waitForScrollEndFallbackToDelayWithoutScrollEvent(scroller);
/* Scrollbar down button should be located on bottom right side */
const track_position = { x: 200, y: 200 };
await scrollbar_track_click(track_position);
await scrollEndPromise;
await waitForAnimationFrames(2);
assert_not_equals(scroller.scrollTop, 0);
assert_equals(getComputedStyle(target).getPropertyValue("--y"), "yes");
}, "Scrollbar button clicks scroll");
</script>