mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-04-26 01:35:08 +02:00
4e92765211
Handle inline stylesheet @keyframes insertions without falling back to broad owner invalidation. Recompute only elements whose computed animation-name already references the inserted keyframes name. Document-scoped insertions still walk the shadow-including tree so existing shadow trees pick up inherited animations, and shadow-root stylesheets fan out through the host root so :host combinators can refresh host-side consumers as well. Also introduce the shared ShadowRootStylesheetEffects analysis so later stylesheet mutation paths can reuse the same per-scope escape classification.
41 lines
1.8 KiB
HTML
41 lines
1.8 KiB
HTML
<!DOCTYPE html>
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<script src="../include.js"></script>
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<div id="host"><span id="slotted" class="item">slotted</span><span id="inherited">inherited</span></div>
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<script>
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asyncTest(async done => {
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const host = document.getElementById("host");
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const slotted = document.getElementById("slotted");
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const inherited = document.getElementById("inherited");
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const shadowRoot = host.attachShadow({ mode: "open" });
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shadowRoot.innerHTML = `
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<style id="shadow-style">
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::slotted(.item) {
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animation-name: inserted;
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animation-duration: 1s;
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animation-fill-mode: both;
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}
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</style>
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<slot></slot>
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`;
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const styleSheet = shadowRoot.getElementById("shadow-style").sheet;
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println(`slotted before rule: ${getComputedStyle(slotted).color}`);
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shadowRoot.appendChild(document.createElement("b"));
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styleSheet.insertRule("::slotted(.item) { color: rgb(0, 0, 255); }", styleSheet.cssRules.length);
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println(`slotted after rule: ${getComputedStyle(slotted).color}`);
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println(`inherited before slot rule: ${getComputedStyle(inherited).color}`);
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styleSheet.insertRule("slot { border-color: rgb(0, 0, 0); color: rgb(255, 0, 0); }", styleSheet.cssRules.length);
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println(`inherited after slot rule: ${getComputedStyle(inherited).color}`);
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println(`opacity before keyframes: ${getComputedStyle(slotted).opacity}`);
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shadowRoot.appendChild(document.createElement("i"));
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styleSheet.insertRule("@keyframes inserted { from { opacity: 0.25; } to { opacity: 0.25; } }", styleSheet.cssRules.length);
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await animationFrame();
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println(`opacity after keyframes: ${getComputedStyle(slotted).opacity}`);
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done();
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});
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</script>
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