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<!DOCTYPE html>
<title>View transitions: hit test shared element at the real dom location</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:vmpstr@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
html { view-transition-name: none }
#target {
width: 100px;
height: 100px;
contain: paint;
view-transition-name: shared;
position: relative;
z-index: 1;
}
.before {
background: yellow;
left: 200px;
}
.after {
background: green;
}
.after:hover {
background: red;
}
#unrelated {
width: 50px;
height: 50px;
position: relative;
top: -50px;
background: blue;
}
html::view-transition {
pointer-events: none;
}
html::view-transition-group(*) {
pointer-events: auto;
}
html::view-transition-group(shared) {
animation-delay: 300s;
}
html::view-transition-old(shared) {
animation: unset;
opacity: 1;
}
html::view-transition-new(shared) {
display: none;
}
</style>
<div id=target class=before></div>
<div id=unrelated></div>
<script>
async_test(t => {
assert_implements(document.startViewTransition, "Missing document.startViewTransition");
document.startViewTransition(() => {
target.classList.toggle("before");
target.classList.toggle("after");
requestAnimationFrame(async () => {
// Check the location of the element, we should get body.
t.step(() => assert_equals(document.elementFromPoint(20, 20), document.body));
// Check the location of the pseudo element for the old snapshot, we should get documentElement,
// which is the originating element for the pseudo element.
t.step(() => assert_equals(document.elementFromPoint(220, 20), document.documentElement));
// Check the spot that used to be covered by the element but now has
// unrelated element, which is what we expect to get.
t.step(() => assert_equals(document.elementFromPoint(20, 70), unrelated));
t.done();
});
});
}, "hit test should not hit unpainted element, but does hit pseudo and unrelated elements");
</script>
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