Pins the header row to the top of the gridWrapper scroll viewport, with
the pinned-left corner cell stacking above pinned body cells at the
top-left intersection. The trailing add-column button gets the same
sticky treatment so it doesn't drift away from the row.
Subtle bit: `position: sticky` confines an element to its containing
block. The previous subgrid `.headerRow` wrapper was 34px tall, so
sticky cells could only travel 34px before scrolling out with the
wrapper. Switching the wrapper to `display: contents` lets the cells
become direct grid children of `.grid` (full table height) so sticky
travel matches the scroll range. role="row" survives display:contents
in modern browsers.
Mounts useBaseRowsCountQuery alongside the rows query so the count is
fetched eagerly and the cache is warm by the time the toolbar consumes
it. Gating on `currentUser` (not just `base`) ensures the persisted
view-draft has hydrated from localStorage before the first count fires
— otherwise a post-refresh count races ahead of the user's saved
filter and ships without it.
Per-cell useResolvedPages([id]) calls each mounted with a unique
React Query key, so a grid with 20 page-typed cells fired 20 requests on
first paint. A shared loader now accumulates incoming ids within a
microtask, fires a single POST for the union, and fans the subset each
caller asked for back to them. Cells keep their own cache entry + null
handling; they just share the underlying network call.
Also renames /bases/pages/resolve → /bases/pages/expand — the old name
collided with other "resolve" semantics in the codebase.
Row-count display on a filtered view shouldn't force a full COUNT(*) on
every list fetch. New endpoint returns either an EXPLAIN-plan estimate
(default, ~1ms, no execution) or a LIMIT-capped exact count that short-
circuits to `{ capped: true }` once the match set passes EXACT_COUNT_CAP.
Clients call it in parallel with the rows query so the grid still paints
at its own pace.
- DTO + repo.countEstimate/countExact reusing the list predicate shape
- service picks the mode; controller mirrors the list Read ability check
- client hook keyed by filter/search/exact so a "show exact" toggle
doesn't clobber the estimate cache
The view-draft layer stores `{op: 'and', children: []}` as an explicit
"override baseline with no predicates" marker. That payload was leaking
into /bases/rows requests once local filter/sort drafts were enabled —
harmless server-side (buildWhere maps an empty group to TRUE) but it
destabilised the React Query key and cluttered request payloads. Normalise
empty groups to undefined at the hook level.
Browser overflow-anchor silently bumped scrollTop by one page's worth
of pixels every time a new page of rows committed — anchoring on the
AddRowButton that sits below paddingBottom. This kept the near-bottom
threshold satisfied and re-fired onFetchNextPage indefinitely, even
after the user released the scrollbar. Disabling scroll anchoring on
the grid scroll container stops the browser from adjusting scrollTop
in response to content growth.