36 lines
1.1 KiB
HTML
36 lines
1.1 KiB
HTML
<!doctype html>
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<title>CSS Container Queries Test: Canvas as dynamic size container for focusable child with display</title>
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<link rel="help" href="https://drafts.csswg.org/css-conditional-5/#size-container">
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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="support/cq-testcommon.js"></script>
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<style>
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canvas {
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display: block;
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width: 100px;
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height: 100px;
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container-type: size;
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}
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#target { display: none; }
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@container (width = 200px) {
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#target { display: block; }
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}
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</style>
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<p>Test passes if there is a filled green square.</p>
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<canvas id="canvas">
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<div id="target" tabIndex="1"></div>
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</canvas>
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<script>
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setup(() => assert_implements_size_container_queries());
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test(() => {
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target.focus();
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assert_not_equals(document.activeElement, target);
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}, "Initially display:none, not focusable");
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test(() => {
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canvas.style.width = "200px";
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target.focus();
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assert_equals(document.activeElement, target);
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}, "Focusable after container size change");
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</script>
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