daf7042cd2
File previews read once and then froze: visited tabs stay mounted-but-hidden (LRU in useMountedTabSet), so refetchOnMount never re-fired and the only way to see fresh content was to close and reopen the tab. Gate the file query's `enabled` on tab + app visibility so React Query refetches on the disabled->enabled transition — and only when the cached read is stale (keeping the existing 5s staleTime), so a quick flip away and back doesn't re-read. Covers switching between tabs and backgrounding/reopening the whole app to the same tab. Adds a wiring test covering the stale-revisit refetch, the fresh-revisit debounce, the app-foreground refetch, and the read-error path. Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
18 lines
709 B
TypeScript
18 lines
709 B
TypeScript
/**
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* Whether `FilePane` should read its file right now.
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*
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* The read is gated on visibility so a revisited tab refetches instead of showing
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* the frozen first-load snapshot (#445): React Query refetches on the
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* disabled→enabled transition (stale-gated by the query's staleTime). The file is
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* read only when there is something to read AND the pane can actually show it —
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* the tab is the active one (not a hidden, mounted-but-offscreen tab) and the
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* whole app is in the foreground.
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*/
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export function isFileQueryEnabled(input: {
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hasReadTarget: boolean;
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isTabActive: boolean;
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isAppVisible: boolean;
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}): boolean {
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return input.hasReadTarget && input.isTabActive && input.isAppVisible;
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}
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