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Merge pull request #1108 from mvanhorn/perf/throttle-scroll-handlers

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perf: throttle scroll handlers with requestAnimationFrame
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Rohan Verma 2026-04-03 08:06:25 -07:00 • committed by GitHub
commit d8231c2002
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3 changed files with 42 additions and 9 deletions
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17
surfsense_web/app/dashboard/[search_space_id]/documents/(manage)/components/DocumentsTableShell.tsx
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@ -267,12 +267,23 @@ export function DocumentsTableShell({
const [metadataJson, setMetadataJson] = useState<Record<string, unknown> | null>(null);
const [metadataLoading, setMetadataLoading] = useState(false);
const [previewScrollPos, setPreviewScrollPos] = useState<"top" | "middle" | "bottom">("top");
const previewRafRef = useRef<number>();
const handlePreviewScroll = useCallback((e: React.UIEvent<HTMLDivElement>) => {
const el = e.currentTarget;
const atTop = el.scrollTop <= 2;
const atBottom = el.scrollHeight - el.scrollTop - el.clientHeight <= 2;
setPreviewScrollPos(atTop ? "top" : atBottom ? "bottom" : "middle");
if (previewRafRef.current) return;
previewRafRef.current = requestAnimationFrame(() => {
const atTop = el.scrollTop <= 2;
const atBottom = el.scrollHeight - el.scrollTop - el.clientHeight <= 2;
setPreviewScrollPos(atTop ? "top" : atBottom ? "bottom" : "middle");
previewRafRef.current = undefined;
});
}, []);
useEffect(
() => () => {
if (previewRafRef.current) cancelAnimationFrame(previewRafRef.current);
},
[]
);
const [deleteDoc, setDeleteDoc] = useState<Document | null>(null);
const [isDeleting, setIsDeleting] = useState(false);