Establish a decoupled player boundary so UI and backend interact with video
through one contract, with the HTML5 (Linux/interim-Android) and native
(ExoPlayer) providers as interchangeable primitive-executor adapters.
- PlayerAdapter interface + AdapterHost callback bag (adapters/types.ts): the
adapter owns only decision-free element PRIMITIVES (seekElement, reloadSource,
play/pause, setVolume, selectSubtitle); it never branches on strategy.
- Seek/audio-track DECISIONS stay in Rust (player_seek_video / _switch_audio_track
return a strategy); the facade dispatches the chosen primitive to the active
adapter. Both providers share the one decision path — logic lives once, in Rust.
- Facade holds the active adapter; a new ControlCommand PlayerStatusEvent lets
backend control (lockscreen/remote/sleep) drive the webview <video> element.
- Html5PlayerAdapter resolves the LIVE element via the bridge (fixes play/pause
silently no-opping when the element was re-bound).
- Do not emit a "stopped" player state on natural end-of-video: it flipped the
player/mode to idle mid-handoff and suppressed next-episode auto-advance under
a sleep timer. Jellyfin progress reporting is preserved; the backend's
on_video_playback_ended owns the transition.
- VideoPlayer net -300 lines (strategy/HLS-reload logic relocated to the adapter).
- Adds 20 adapter unit tests; existing suites stay green (vitest 457, cargo 416).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
