Mobile (iPhone): cannot enter initials for leaderboard — no native keyboard trigger #59
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frankenbit/cellblock#59
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Symptom (operator playtest, 2026-06-21, iPhone)
Operator: "I was unable to enter my initials on the iPhone".
When the leaderboard initials-entry UI appears (after game-over with a top-N score), the operator could not type initials on iPhone — no iOS keyboard appeared when tapping the initials box.
Likely root cause
The initials-entry is canvas-rendered (drawInitialsBox in render.ts), not a real DOM
<input>element. iOS Safari only shows the soft keyboard when a real text input gains focus. Canvas + key handlers work on desktop because we listen for keyboard events directly, but iOS has no physical keyboard to trigger.No touch-handler exists for the initials cells either — even if there were, tapping wouldnt give a way to enter letters without summoning the OS keyboard.
Fix direction (decision tree)
Three paths, depending on scope:
<input maxlength=3 type="text">on top. Focus triggers iOS keyboard; canvas reflects the value. Standard mobile-web pattern. Size/M.Lane
Shipwright (canvas render) + Pilot (state machine + input handling). Bundle if touching the same code.
Effort
Size/M-L. Part of the dedicated mobile session.
Anchor
Operator iPhone playtest 2026-06-21 17:27 (Mattermost-shared screenshot showed leaderboard reachable but unable to enter initials). Filed as part of the cellblock #57 portrait-layout mobile-session batch.
Closing satisfaction summary — closed by PR #74 @
23319501:Implementation matches the issue framing: per-slot ▲/▼ steppers + SAVE button + tap-to-focus, portrait-only path (rare-edge landscape-touch scoped out to #73 follow-up). Surveyor verified by Vite+Playwright iPhone-13 32-check harness, mutation-proven, hit-rects-painted-cells-by-construction. n=4 of probe-gated-merge-separation operator-device-gate variant family — iOS effectiveness operator-device-gated (instrument shipped, behavioral confirmation awaits playtest).