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feat(csv-gridsheet): auto-expand on paste/autofill, disable merged cells - #150
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`options.autoExpand` ('none' | 'vertical' | 'horizontal' | 'both', default
'none') lets a paste or an autofill that runs past the last row/column append
the missing rows/columns instead of clipping them, capped by
limits.maxRows / maxCols.
- engine: Sheet.autoExpand; copy / copyAsync / move / writeRawCellMatrix and
Autofill grow the sheet first. New BATCH history so the growth and the write
undo/redo as one step; the growth is rolled back if the operation is refused
(e.g. by a merge).
- react-core: while dragging the autofill handle, ghost rows/columns are
rendered past the edge (as real table rows/cells, so sticky headers stay) so
the drag can reach cells that don't exist yet. A paste that grew the sheet
scrolls the pasted corner into view.
- fix: releasing an autofill drag over a ScrollHandle submitted the fill twice
(two undo steps); StoreObserver's mouseup is now the only submitter.
- docs, storybook story (Restriction/AutoExpand), jest + e2e specs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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The autoExpand ghost area is now drawn outside the grid — portaled to <body>, positioned fixed right past the last row/column (only once that edge is scrolled into view) — instead of as extra table rows inside the scroll area. Cells in the fill target are highlighted; StoreObserver doesn't edge-scroll while the pointer is over the ghost layer. Reverts the in-table ghost rendering and the virtualize() "scrolled past the content" tweaks it needed. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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…autofill Replaces the outside-the-sheet ghost layer with provisional ghost rows/columns rendered inside the grid (as table rows/cells, so sticky headers stay): - While the fill drag's pointer is past the grid content's edge (the whitespace of a larger box, or outside it) and the grid is scrolled to that edge, add one ghost row/col at a time, faster the further past the edge (200ms → 20ms). - Ghosts are display-only (no sheet change, no history); releasing grows the sheet up to the reached row/col in one undo step, unreached ghosts vanish. - The target follows the last ghost while past the edge, the grid stays pinned to that edge as it grows, and growth stops once the pointer is back over a cell. The edge ScrollHandle no longer snaps the target back to the last real row/col there. - An autofill that grew the sheet scrolls the filled corner into view. - Storybook AutoExpand story: limits raised to 1000 rows x 100 cols. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- New setting gridsheet.viewer.autoExpand (both | vertical | horizontal | none, default both) passed to the grid's autoExpand option; forced off in read-only. - Merge / Unmerge removed from the cell context menu and blocked via the Merge prevention: CSV/TSV can't store merges, and merging blanks the covered cells, which a save would then write out. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Summary
Auto-expand
gridsheet.viewer.autoExpand—both(default) |vertical|horizontal|none— passed to the grid'sautoExpandoption. A paste or autofill past the last row/column adds the missing rows/columns instead of dropping the overflow; ghost rows/columns appear while dragging the fill handle; one undo reverts both.nonein read-only mode (the write is refused there anyway, so the grid shouldn't grow).Merged cells disabled
merge-cells/unmerge-cells(and their divider) from the context menu, and addedoperations.Mergeto the default cell prevention in case another entry point appears. (Read-only already blocks it viaReadOnly.)README settings list and CHANGELOG (
Unreleased) updated. No version bump — the extension is released by hand.Test plan
pnpm buildfor the extension (host + webview bundles)dist/webview.jsin a browser harness (stubbedacquireVsCodeApi+ adatamessage) with Playwright: the cell context menu shows Cut / Copy / Paste / Paste only value / Undo / Redo / Search — no Merge/Unmerge; copying A1:C3 and pasting at C3 on a 3×3 grid grows it to 5×5 (E5 =z)🤖 Generated with Claude Code