diff options
Diffstat (limited to 'backend-handoff.md')
| -rw-r--r-- | backend-handoff.md | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/backend-handoff.md b/backend-handoff.md index a90a351..e37c7d0 100644 --- a/backend-handoff.md +++ b/backend-handoff.md @@ -286,10 +286,13 @@ changes, NO contract changes — the wire types and every endpoint consumed are elements to the GRID CONTAINER, which `setPointerCapture`s the pointer and never gets re-parented/`pointer-events: none`/unmounted — so move/up stream to it over empty cells and off the canvas, and capture can never be lost to a DOM move again. -- **Drag append bound** (`dragAppendLimit` in `logic/tile-layout.ts` + `cellAt` in - `HomeTileGrid.svelte`): the drag target is clamped to at most 3 columns (wide) / rows (tall) - past the current content edge (span-aware, measured on the COMMITTED layout so it can't ratchet - mid-drag) — the canvas no longer grows endlessly when dragging far right / down. +- **Drag append bound + reserved canvas** (`dragAppendLimit` in `logic/tile-layout.ts`; + `cellAt` + `gridStyle` in `HomeTileGrid.svelte`): the drag target is clamped to at most 3 + columns (wide) / rows (tall) past the current content edge (span-aware, measured on the + COMMITTED layout so it can't ratchet mid-drag). While dragging, the grid's box is a FIXED + reservation — the 3 spaces (plus the dragged tile's span room) pop in at drag start and stay + constant, so the scroller never changes size mid-drag; the unused spaces vanish when the drag + ends. - Verification: `typecheck` 0 errors/0 warnings, vitest 1689/1689 (incl. updated `tile-layout.test.ts` order assertions — coordinates unchanged), biome clean on touched files, `build` succeeds. Browser-only (pointer capture) — needs a human at the page to confirm the |