fune/testing/web-platform/tests/css/css-overflow/overflow-clip-margin-hit-testing.html
Xianzhu Wang 9c106c3e20 Bug 1846665 [wpt PR 41281] - Fix LayoutBox::MayIntersect() with overflow clip margin, a=testonly
Automatic update from web-platform-tests
Fix LayoutBox::MayIntersect() with overflow clip margin

A positive overflow clip margin can expose overflowing contents even
though we are clipping along both axes (i.e. OverflowClipRect() can
be larger than the border box rect).

LayoutBox::HasHitTestableOverflow() is added not only for this CL,
but also for crbug.com/1453975.

Bug: 1469361
Change-Id: I9040bfe74e5027f0eb5299d036128b94368aaa73
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4740352
Reviewed-by: Philip Rogers <pdr@chromium.org>
Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1178216}

--

wpt-commits: 5d96bb8630548b27e821928f8809ca676e8d2d5f
wpt-pr: 41281
2023-08-10 14:59:13 +00:00

27 lines
1.5 KiB
HTML

<!doctype html>
<title>Overflow: clip hit testing includes overflow in overflow-clip-margin</title>
<link rel="help" href="https://www.w3.org/TR/css-overflow-3/#valdef-overflow-clip">
<link rel="author" title="Scott Violet" href="mailto:wangxianzhu@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="container" style="width: 100px; height: 100px;
overflow: clip; overflow-clip-margin: 50px">
<div id="child" style="width: 300px; height: 50px"></div>
</div>
<script>
test(() => {
var bounds = container.getBoundingClientRect();
assert_equals(child, document.elementFromPoint(bounds.x + 50, bounds.y + 20),
'in child and container');
assert_equals(child, document.elementFromPoint(bounds.x + 125, bounds.y + 25),
'in child and container overflow clip margin');
assert_equals(document.body, document.elementFromPoint(bounds.x + 175, bounds.y + 25),
'outside of container overflow, would in child without clip');
assert_equals(container, document.elementFromPoint(bounds.x + 50, bounds.y + 75),
'outside of child, in container');
assert_equals(document.documentElement,
document.elementFromPoint(bounds.x + 50, bounds.y + 125),
'in container overflow clip margin, but nothing there');
}, "Ensure elements in overflow-clip-margin are returned from elementFromPoint");
</script>