29 lines
1.3 KiB
HTML
29 lines
1.3 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<title>CSS Pseudo-Elements Test: highlight styling: late property registration updates highlights</title>
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<link rel="author" title="Stephen Chenney" href="mailto:schenney@chromium.org">
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<link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#highlight-cascade">
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<meta name="assert" value="This test verifies that custom property values when defined on a highlight pseudo update when the property registration happens after first style recalc.">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<style>
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#originating::spelling-error {
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color: white;
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--x: initial;
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background-color: var(--x, red);
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}
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</style>
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<div id="originating">Text wth a spelling error</div>
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<script>
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promise_test(async () => {
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await new Promise(requestAnimationFrame);
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CSS.registerProperty({
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name: '--x',
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inherits: true,
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initialValue: "green"
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});
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await new Promise(requestAnimationFrame);
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const originating_spelling = getComputedStyle(document.querySelector("div"), "::spelling-error");
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assert_equals(originating_spelling.getPropertyValue("--x"), "green");
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}, "the custom property receives its initial value from a deferred registration");
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</script>
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