<!DOCTYPE html>
<title>@scope - Sibling Style Sharing</title>
<link rel="help" href="https://drafts.csswg.org/css-cascade-6/#scope-atrule">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<main id=main></main>
<template id=test_1>
<style>
@scope (.scope-start) to (.sibling + .sibling) {
.foo {
z-index: 1;
}
}
</style>
<div class="scope-start">
<div id="first" class="sibling foo"></div>
<div id="second" class="sibling foo"></div>
</div>
</template>
<script>
test((t) => {
t.add_cleanup(() => main.replaceChildren());
main.append(test_1.content.cloneNode(true));
assert_equals(getComputedStyle(first).zIndex, '1');
assert_equals(getComputedStyle(second).zIndex, 'auto');
}, '@scope with sibling style sharing, second sibling exits scope');
</script>
<template id=test_2>
<style>
@scope (.scope-start) to (.sibling:not(.sibling + div)) {
.foo {
z-index: 1;
}
}
</style>
<div class="scope-start">
<div id="first" class="sibling foo"></div>
<div id="second" class="sibling foo"></div>
</div>
</template>
<script>
test((t) => {
t.add_cleanup(() => main.replaceChildren());
main.append(test_2.content.cloneNode(true));
assert_equals(getComputedStyle(first).zIndex, 'auto');
assert_equals(getComputedStyle(second).zIndex, '1');
}, '@scope with sibling style sharing, first sibling matches scope');
</script>
<template id=test_3>
<style>
@scope (.sibling:not(.sibling + div)) {
:scope {
z-index: 1;
}
}
</style>
<div id="first" class="sibling"></div>
<div id="second" class="sibling"></div>
</template>
<script>
test((t) => {
t.add_cleanup(() => main.replaceChildren());
main.append(test_3.content.cloneNode(true));
assert_equals(getComputedStyle(first).zIndex, '1');
assert_equals(getComputedStyle(second).zIndex, 'auto');
}, '@scope with sibling style sharing, first sibling enters scope');
</script>
<template id=test_4>
<style>
@scope (.sibling + .sibling) {
:scope {
z-index: 1;
}
}
</style>
<div id="first" class="sibling"></div>
<div id="second" class="sibling"></div>
</template>
<script>
test((t) => {
t.add_cleanup(() => main.replaceChildren());
main.append(test_4.content.cloneNode(true));
assert_equals(getComputedStyle(first).zIndex, 'auto');
assert_equals(getComputedStyle(second).zIndex, '1');
}, '@scope with sibling style sharing, second sibling enters scope');
</script>
<template id=test_5>
<div id="first" class="sibling">
<style>
@scope {
:scope {
z-index: 1;
}
}
</style>
</div>
<div id="second" class="sibling">
</div>
</template>
<script>
test((t) => {
t.add_cleanup(() => main.replaceChildren());
main.append(test_5.content.cloneNode(true));
assert_equals(getComputedStyle(first).zIndex, '1');
assert_equals(getComputedStyle(second).zIndex, 'auto');
}, '@scope with sibling style sharing, first sibling has implicit scope');
</script>
<template id=test_6>
<div id="first" class="sibling">
</div>
<div id="second" class="sibling">
<style>
@scope {
:scope {
z-index: 1;
}
}
</style>
</div>
</template>
<script>
test((t) => {
t.add_cleanup(() => main.replaceChildren());
main.append(test_6.content.cloneNode(true));
assert_equals(getComputedStyle(first).zIndex, 'auto');
assert_equals(getComputedStyle(second).zIndex, '1');
}, '@scope with sibling style sharing, second sibling has implicit scope');
</script>
<template id=test_7>
<style>
@scope to (.sibling + .sibling) {
.foo {
z-index: 1;
}
}
</style>
<div id="first" class="sibling foo"></div>
<div id="second" class="sibling foo"></div>
</template>
<script>
test((t) => {
t.add_cleanup(() => main.replaceChildren());
main.append(test_7.content.cloneNode(true));
assert_equals(getComputedStyle(first).zIndex, '1');
assert_equals(getComputedStyle(second).zIndex, 'auto');
}, '@scope with sibling style sharing, second sibling exits implicit scope');
</script>
<template id=test_8>
<style>
@scope to (.sibling:not(.sibling + div)) {
.foo {
z-index: 1;
}
}
</style>
<div id="first" class="sibling foo"></div>
<div id="second" class="sibling foo"></div>
</template>
<script>
test((t) => {
t.add_cleanup(() => main.replaceChildren());
main.append(test_8.content.cloneNode(true));
assert_equals(getComputedStyle(first).zIndex, 'auto');
assert_equals(getComputedStyle(second).zIndex, '1');
}, '@scope with sibling style sharing, first sibling exits implicit scope');
</script>
<template id=test_9>
<style>
@scope (.sibling:has(> .foo)) {
:scope {
z-index: 1;
}
}
</style>
<div id="first" class="sibling"><div class="foo"></div></div>
<div id="second" class="sibling"></div>
</template>
<script>
test((t) => {
t.add_cleanup(() => main.replaceChildren());
main.append(test_9.content.cloneNode(true));
assert_equals(getComputedStyle(first).zIndex, '1');
assert_equals(getComputedStyle(second).zIndex, 'auto');
}, '@scope with sibling style sharing, first sibling enters scope with :has');
</script>
<template id=test_10>
<style>
@scope (.sibling:has(> .foo)) {
:scope {
z-index: 1;
}
}
</style>
<div id="first" class="sibling"></div>
<div id="second" class="sibling"><div class="foo"></div></div>
</template>
<script>
test((t) => {
t.add_cleanup(() => main.replaceChildren());
main.append(test_10.content.cloneNode(true));
assert_equals(getComputedStyle(first).zIndex, 'auto');
assert_equals(getComputedStyle(second).zIndex, '1');
}, '@scope with sibling style sharing, second sibling enters scope with :has');
</script>
<template id=test_11>
<style>
@scope (#first) {
:scope {
z-index: 1;
}
}
</style>
<div id="first" class="sibling"></div>
<div id="second" class="sibling"></div>
</template>
<script>
test((t) => {
t.add_cleanup(() => main.replaceChildren());
main.append(test_11.content.cloneNode(true));
assert_equals(getComputedStyle(first).zIndex, '1');
assert_equals(getComputedStyle(second).zIndex, 'auto');
}, '@scope with sibling style sharing, first sibling enters scope with ID selector');
</script>
<template id=test_12>
<style>
@scope (#second) {
:scope {
z-index: 1;
}
}
</style>
<div id="first" class="sibling"></div>
<div id="second" class="sibling"></div>
</template>
<script>
test((t) => {
t.add_cleanup(() => main.replaceChildren());
main.append(test_12.content.cloneNode(true));
assert_equals(getComputedStyle(first).zIndex, 'auto');
assert_equals(getComputedStyle(second).zIndex, '1');
}, '@scope with sibling style sharing, second sibling enters scope with ID selector');
</script>
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