mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-04-26 09:45:06 +02:00
928a5247ff
Avoid broad document invalidation when adding or removing ordinary document-owned or shadow-owned stylesheets. Reuse the targeted StyleSheetInvalidation path for style rules, including shadow-host escapes, pseudo-element-only selectors, and trailing-universal cases. Keep the broad path for sheet contents whose effects are not captured by selector invalidation alone, including @property, @font-face, @font-feature-values, @keyframes, imported sheets, and top-level @layer blocks. Broad-path shadow-root sheets still reach host-side consumers through their active-scope effects.
28 lines
953 B
HTML
28 lines
953 B
HTML
<!DOCTYPE html>
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<script src="../include.js"></script>
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<div id="host"></div>
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<script>
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test(() => {
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const host = document.getElementById("host");
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const shadowRoot = host.attachShadow({ mode: "open" });
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const target = document.createElement("div");
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target.className = "foo";
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shadowRoot.appendChild(target);
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const nonTarget = document.createElement("div");
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nonTarget.className = "bar";
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shadowRoot.appendChild(nonTarget);
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println(`before target: ${getComputedStyle(target).color}`);
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println(`before non-target: ${getComputedStyle(nonTarget).color}`);
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const style = document.createElement("style");
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style.textContent = ".foo { color: rgb(255, 0, 0); }";
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shadowRoot.appendChild(style);
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println(`after target: ${getComputedStyle(target).color}`);
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println(`after non-target: ${getComputedStyle(nonTarget).color}`);
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});
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</script>
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