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.
43 lines
1.5 KiB
HTML
43 lines
1.5 KiB
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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function settleAndReset(triggerElement) {
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getComputedStyle(triggerElement).animationName;
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getComputedStyle(triggerElement).animationName;
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internals.resetStyleInvalidationCounters();
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}
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function addBystanders(parent, count) {
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for (let i = 0; i < count; ++i) {
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const bystander = document.createElement("div");
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bystander.textContent = `bystander ${i}`;
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parent.appendChild(bystander);
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}
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}
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test(() => {
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const host = document.getElementById("host");
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const shadowRoot = host.attachShadow({ mode: "open" });
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const sheet = new CSSStyleSheet();
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sheet.replaceSync(`
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:host {
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animation-name: fade;
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animation-duration: 1s;
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}
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`);
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shadowRoot.adoptedStyleSheets = [sheet];
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addBystanders(document.body, 25);
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settleAndReset(host);
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sheet.insertRule("@keyframes fade { from { opacity: 0.25; } to { opacity: 0.25; } }", sheet.cssRules.length);
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getComputedStyle(host).animationName;
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const invalidations = internals.getStyleInvalidationCounters().styleInvalidations;
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if (invalidations <= 1)
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println(`PASS: bare :host keyframes insertRule only invalidates the host (${invalidations} invalidations)`);
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else
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println(`FAIL: bare :host keyframes insertRule only invalidates the host (${invalidations} invalidations)`);
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});
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</script>
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