ScreenService plays a synthesised two-bubble "blubb" (musicmouse.blubb) after each
switch, through aplay on the music's ALSA device at the player's volume: rising for
on, falling for off, going by the last word the toggle command prints. Nothing plays
with simulated audio or at volume 0. Built from samples rather than shipped as a
file, like the front-end's WebAudio blips, so its loudness follows the volume.
Del maps to a new "screen" action on every page, which App.tsx sends to the new
POST /api/screen/toggle only when the page is served from localhost - the kiosk on
the device - so Del on a tablet does not switch off a screen in another room.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
KEY_POWER emits ToggleScreenRequested, which a new ScreenService turns into the
optional general.screen.toggle_command (musicdolphin: ansible's kiosk-screen). It is
a service, not a reaction, so the subprocess runs in its own task instead of holding
the bus; a press while one is still running is dropped, and failures, hangs and a
missing command are only logged.
irserver reports every line of a held button as repeat 00, so a slightly long press
on Next skipped several tracks and Power would switch the screen off and on again.
A line of the same button within 0.25s of the previous one now counts as a repeat.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
