61 lines
2.4 KiB
HTML
61 lines
2.4 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>CSS Values Test: sibling-index() and sibling-count() in flat tree</title>
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<link rel="help" href="https://drafts.csswg.org/css-values-5/#tree-counting" />
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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</head>
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<body>
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<style>
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#host > * {
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grid-column-start: sibling-index();
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grid-row-start: sibling-count();
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}
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</style>
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<div id="host">
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<div>In host tree (1)</div>
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<div>In host tree (2)</div>
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<div slot="unknown">In host tree (3)</div>
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<div id="target">In host tree (4)</div>
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<div>In host tree (5)</div>
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</div>
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<script>
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const shadowRoot = host.attachShadow({mode: 'open'});
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shadowRoot.innerHTML = `
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<style>
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slot::slotted(*), * {
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z-index: sibling-index();
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order: sibling-count();
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}
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</style>
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<section id="shadow-root-child">
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<div>In shadow tree (1).</div>
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<div>In shadow tree (2).</div>
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<div>In shadow tree (3).</div>
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<slot>In shadow tree (4).</slot>
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<div id="target">In shadow tree (5)</div>
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<div>In shadow tree (6)</div>
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</section>
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`;
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test(() => {
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assert_equals(getComputedStyle(target).zIndex, '4', 'sibling-index(), rule from shadow tree');
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assert_equals(getComputedStyle(target).order, '5', 'sibling-count(), rule from shadow tree');
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assert_equals(getComputedStyle(target).gridColumnStart, '4', 'sibling-index(), rule from light tree');
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assert_equals(getComputedStyle(target).gridRowStart, '5', 'sibling-count(), rule from light tree');
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}, 'Host children have sibling-index() and sibling-count() based on the DOM tree order');
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test(() => {
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const shadowTarget = shadowRoot.getElementById('target');
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assert_equals(getComputedStyle(shadowTarget).zIndex, '5', 'sibling-index()');
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assert_equals(getComputedStyle(shadowTarget).order, '6', 'sibling-count()');
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}, 'Shadow children have sibling-index() and sibling-count() based on the DOM tree order')
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test(() => {
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const shadowRootChild = shadowRoot.getElementById('shadow-root-child');
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assert_equals(getComputedStyle(shadowRootChild).zIndex, '2', 'sibling-index() for direct shadow root child');
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assert_equals(getComputedStyle(shadowRootChild).order, '2', 'sibling-count() for direct shadow root child');
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}, 'Direct shadow root children have correct sibling-index() and sibling-count()')
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</script>
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