forked from unom/punktfunk
enricobuehler
bac63059a9
Asked for by a field user: "make the iPadOS client compatible with keyboard to select games with keyboard arrows, enter to launch". An iPad on a Magic Keyboard and a couch Mac are the same situation the console layout was built for — a screen driven from a distance with a fixed set of directional inputs — and the cursor/confirm/back model already exists here for the pad. A keyboard is a third input onto it, not a new navigation scheme: arrows move, Return and Space activate, Esc backs out, everywhere the controller already worked (carousel, menu lists, prompts) plus the plain poster grid. `active` mirrors each caller's existing controller gate rather than being a second, parallel notion of "who has input". Without that, a launcher sitting under an open screen would keep eating key presses and navigate behind it — the same defect the pad gate exists to prevent. Esc returns `.ignored` when a screen has no back action, so it still reaches the `.cancelAction` shortcut that closes a macOS sheet. The plain grid needed real arithmetic rather than a flat index. It renders up to TWO `LazyVGrid` sections (launchers above titles), so a flat index steps by the wrong amount at the boundary whenever the first section's last row is partial — up from the titles' first row lands mid-launcher-row instead of above. `LibraryGridNav` moves within a section and hands off at its edges preserving the column, clamping into partial rows. It lives in PunktfunkKit because it is edge-case arithmetic and that is the target tests can reach; 12 cases cover the partial row, the hand-off, a stale cursor, an empty grid and a zero column count. The column count comes from the grid's MEASURED width run through `.adaptive`'s own fitting rule, so up/down move exactly one visual row instead of a guess that drifts with window size. Measured via a background GeometryReader — a sibling inside a ScrollView would claim the whole viewport. The grid cursor starts nil and only appears on the first arrow press, so a touch user is never shown a selection they didn't ask for. tvOS is excluded throughout: its focus engine already routes hardware arrows, and these screens hand it navigation authority deliberately. 17 PunktfunkKit tests pass; macOS + tvOS typecheck; launcher and settings verified rendering and navigating in the iPad Pro 13" simulator.