screentinker/server/db
ScreenTinker 0082191f9b Show only the controls a display can actually honour
Every device control was offered to every display. A browser tab was shown
"Reboot device", a Tizen TV was shown screen power, a player with no
framebuffer read was shown a live view that stayed black. They all looked
like working buttons and did nothing — the "reports success and changes
nothing" shape that keeps costing people days.

Players now declare what they can do at registration, because only the
player knows at runtime: an Android panel gains real screenshots when
accessibility is switched on and loses Tier-2 when device owner is revoked.
The dashboard hides what is not supported rather than disabling it, and the
Info tab lists the capability set so a missing control is explainable.

The declaration is three-state and the middle state is load bearing: NULL
means "has never told us anything" and falls back to a per-platform
baseline, because several hundred displays in the field will not update
before this deploys and blanking their controls would be a far worse bug.
An empty array means "I genuinely can do nothing" and is honoured.

Hiding a button is not enforcement, so unsupported commands are also
refused server-side — the socket is reachable directly and a stale tab
still renders the old controls. Group sends report skipped devices
separately from sent ones; counting an unreachable member as "sent" is how
an operator walks away believing the whole group rebooted.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
2026-08-05 14:24:52 -05:00
..
database.js Show only the controls a display can actually honour 2026-08-05 14:24:52 -05:00
schema.sql Portrait templates, a canvas that matches the layout, and a playlist mockup 2026-08-05 13:23:15 -05:00
wal-checkpointer-worker.js fix(db): WAL checkpointer worker-death handling (respawn + inline-autocheckpoint fallback) 2026-07-06 23:50:18 -05:00
wal-checkpointer.js fix(db): WAL checkpointer worker-death handling (respawn + inline-autocheckpoint fallback) 2026-07-06 23:50:18 -05:00