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73 lines
1.8 KiB
HTML
73 lines
1.8 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<title>CSS Container Queries Test: Tree scoped container-name</title>
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<link rel="help" href="https://drafts.csswg.org/css-contain-3/#query-container">
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<link rel="help" href="https://drafts.csswg.org/css-scoping-1/#shadow-names">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/resources/declarative-shadow-dom-polyfill.js"></script>
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<script src="support/cq-testcommon.js"></script>
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<div id="container-name-host">
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<div>
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<template shadowrootmode="open">
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<style>
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:host { container-name: foo; }
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</style>
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<slot></slot>
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</template>
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<div id="t1"></div>
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</div>
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<style>
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#container-name-host > div {
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container-type: inline-size;
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}
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#t1 { color: green; }
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@container foo (width > 0px) {
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#t1 { color: red; }
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}
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</style>
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</div>
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<div id="container-name-slotted">
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<div>
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<template shadowrootmode="open">
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<style>
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::slotted(div) {
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container-name: foo;
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}
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</style>
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<slot></slot>
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</template>
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<div>
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<div id="t2"></div>
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</div>
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</div>
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<style>
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#container-name-slotted > div > div {
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container-type: inline-size;
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}
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#t2 { color: green; }
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@container foo (width > 0px) {
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#t2 { color: red; }
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}
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</style>
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</div>
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<script>
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setup(() => {
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assert_implements_container_queries();
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polyfill_declarative_shadow_dom(document);
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});
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const green = "rgb(0, 128, 0)";
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test(() => {
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assert_equals(getComputedStyle(t1).color, green);
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}, "Outer scope query should not match container-name set by :host rule in shadow tree");
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test(() => {
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assert_equals(getComputedStyle(t2).color, green);
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}, "Outer scope query should not match container-name set by ::slotted rule in shadow tree");
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</script>
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