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fix pdf loader flash

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This commit is contained in:
Richard R 2026-06-01 04:54:12 -06:00
parent 29d770941a
commit cc0d460f6b
1 changed files with 21 additions and 5 deletions
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26
src/app/(app)/pdf/[id]/page.tsx
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@ -39,6 +39,7 @@ const PDFViewer = dynamic(
);
const PARSE_LOADER_EXPAND_DELAY_MS = 320;
const INITIAL_LOADER_DELAY_MS = 180;
export default function PDFViewerPage() {
const canExportAudiobook = useFeatureFlag('enableAudiobookExport');
@ -70,6 +71,7 @@ export default function PDFViewerPage() {
const [activeSidebar, setActiveSidebar] = useState<null | 'settings' | 'audiobook' | 'segments'>(null);
const [showForceReparseConfirm, setShowForceReparseConfirm] = useState(false);
const [showDetailedParseLoader, setShowDetailedParseLoader] = useState(false);
const [showInitialLoader, setShowInitialLoader] = useState(false);
const [containerHeight, setContainerHeight] = useState<string>('auto');
const inFlightDocIdRef = useRef<string | null>(null);
const loadedDocIdRef = useRef<string | null>(null);
@ -90,6 +92,7 @@ export default function PDFViewerPage() {
setIsPdfViewerReady(false);
setError(null);
setActiveSidebar(null);
setShowInitialLoader(false);
inFlightDocIdRef.current = null;
loadedDocIdRef.current = null;
}, [id]);
@ -155,6 +158,17 @@ export default function PDFViewerPage() {
useUnmountCleanupRef(clearCurrDoc);
useEffect(() => {
if (!isLoading) {
setShowInitialLoader(false);
return;
}
const timeout = window.setTimeout(() => {
setShowInitialLoader(true);
}, INITIAL_LOADER_DELAY_MS);
return () => window.clearTimeout(timeout);
}, [isLoading, id]);
useEffect(() => {
if (isLoading) return;
if (isParseReady) return;
@ -281,6 +295,7 @@ export default function PDFViewerPage() {
: 0;
const hasMeasuredProgress = totalPages > 0;
const isMerging = parseProgress?.phase === 'merge';
const compactProgressWidth = hasMeasuredProgress ? `${progressPercent}%` : '24%';
let statusText = 'Loading PDF...';
let statusSubText = 'Initializing document renderer';
@ -365,10 +380,11 @@ export default function PDFViewerPage() {
<LoadingSpinner className="h-3.5 w-3.5 text-accent" />
</span>
</div>
<div className="mt-3 grid grid-cols-3 gap-1.5">
<span className="h-1.5 rounded-full bg-accent-wash animate-pulse" />
<span className="h-1.5 rounded-full bg-accent-wash animate-pulse [animation-delay:120ms]" />
<span className="h-1.5 rounded-full bg-accent-wash animate-pulse [animation-delay:220ms]" />
<div className="mt-3 h-1.5 overflow-hidden rounded-full bg-surface-solid">
<div
className={`h-full rounded-full bg-accent transition duration-slow ease-standard ${hasMeasuredProgress ? '' : 'animate-pulse'}`}
style={{ width: compactProgressWidth }}
/>
</div>
</div>
)}
@ -423,7 +439,7 @@ export default function PDFViewerPage() {
/>
</div>
) : null}
{isLoading || !isParseReady || !isPdfViewerReady ? (
{(!isLoading || showInitialLoader) && (isLoading || !isParseReady || !isPdfViewerReady) ? (
<div className="absolute inset-0 z-10" data-testid="pdf-status-loader">
{renderPdfStatusLoader()}
</div>