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<!DOCTYPE html>
<link rel=author href="mailto:jarhar@chromium.org">
<link rel=help href="https://github.com/w3c/csswg-drafts/issues/6850">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=visibilityhidden style="visibility:hidden">hello</div>
<div style="content-visibility:hidden">
<div id=cvhidden>hello</div>
</div>
<div style="content-visibility:auto">
<div id=cvauto>hello</div>
</div>
<div id=displaynone style="display:none">hello</div>
<div id=opacityzero style="opacity:0">hello</div>
<div style="content-visibility:hidden">
<div id=cvhiddenchildwithupdate></div>
</div>
<div style="content-visibility:hidden" id=cvhiddenwithupdate></div>
<div style="height:10000px">spacer</div>
<div style="content-visibility:auto">
<div id=cvautooffscreen>hello</div>
</div>
<div id=cvautocontainer>
<div id=cvautochild></div>
</div>
<div style="content-visibility:auto">
<div style="content-visibility:auto">
<div id=nestedcvautochild></div>
</div>
</div>
<script>
test(() => {
assert_false(visibilityhidden.checkVisibility({
checkVisibilityCSS: true
}), 'checkVisibilityCSS:true');
assert_true(visibilityhidden.checkVisibility({
checkVisibilityCSS: false
}), 'checkVisibilityCSS:false');
}, 'checkVisibility on visibility:hidden element.');
test(() => {
assert_false(cvhidden.checkVisibility());
}, 'checkVisibility on content-visibility:hidden element.');
test(() => {
assert_true(cvauto.checkVisibility());
}, 'checkVisibility on content-visibility:auto element.');
test(() => {
assert_true(cvautooffscreen.checkVisibility());
}, 'checkVisibility on content-visibility:auto element which is outside the viewport.');
test(() => {
assert_false(displaynone.checkVisibility());
}, 'checkVisibility on display:none element.');
test(() => {
assert_false(opacityzero.checkVisibility({
checkOpacity: true
}), 'checkOpacity:true');
assert_true(opacityzero.checkVisibility({
checkOpacity: false
}), 'checkOpacity:false');
}, 'checkVisibility on opacity:0 element.');
test(() => {
cvautocontainer.style.contentVisibility = 'auto';
cvautochild.style.visibility = 'hidden';
assert_false(cvautochild.checkVisibility({checkVisibilityCSS: true}));
cvautochild.style.visibility = 'visible';
assert_true(cvautochild.checkVisibility({checkVisibilityCSS: true}));
}, 'checkVisibility on content-visibility:auto with visibility:hidden inside.');
test(() => {
assert_true(nestedcvautochild.checkVisibility());
}, 'checkVisibility on nested content-visibility:auto containers reports that the content is visible.');
test(() => {
cvhiddenchildwithupdate.getBoundingClientRect();
assert_false(cvhiddenchildwithupdate.checkVisibility());
}, 'checkVisibility on content-visibility:hidden child after forced layout update.');
test(() => {
cvhiddenwithupdate.getBoundingClientRect();
assert_true(cvhiddenwithupdate.checkVisibility());
}, 'checkVisibility on content-visibility:hidden element after forced layout update.');
</script>
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