close#2183
Reusing a room means whoever enters first becomes the host, and moving the
session to someone else's library meant everyone leaving and re-entering in
the right order. The host can now promote any connected guest from the
participant list (Watch Together screen and the in-player session sheet),
with playback, control mode, and reconnect identities carried across.
The relay owns the swap: a new `transferHost` message validates the sender
is the live host and the target a connected modern-protocol guest, then
swaps `HostPeerID` and the reconnect verifiers (each peer keeps its own
token), persists the room, and broadcasts `hostChanged` to every peer.
Clients flip roles in place: the controller swaps its role engine while
keeping the session, message queue, and player attachment. A promoted guest
seeds the coordinator with the room's last known intent (a paused room
stays paused) and the known-peer roster so the fresh epoch re-gates
instead of solo-starting; a demoted host falls back to a reconciler with a
fresh clock sync and asks the new authority for state. Guests re-pin the
host identity, reset their sequence, and re-converge their clocks.
A rejected transfer (`not_host` / `peer_not_found`) surfaces as a toast
instead of tearing the session down. Pre-transfer app builds in the room
ignore `hostChanged` and stop following the room at the next transfer;
targets on an old sync protocol are not offered the action.
Participant.lastKnownPosition had zero reads or writes; SessionState.disconnected was never constructed, making isInSession's comparison tautological (now _session != null); the session indicator's onLeaveSession callback had no production passer; enterRoom's bool was awaited and discarded. Music engine: MusicPlayContext.id and sleepTimerEndsAt were write-only, and the coordinator constructor seam was never injected.
Sheets rendered at the host's maximum height regardless of content, so a
one-item player queue or a two-track picker filled ~75% of a desktop window
with empty space.
BottomSheetPageScaffold now always lays out Column(mainAxisSize: .min) plus
Flexible(child:), and each sheet body shrink-wraps its own scrollable. The
scaffold's shrinkWrap flag is gone: its old true branch put the child on an
unbounded axis, where an over-tall list overflowed instead of clamping and
scrolling. Measured on a 1600x1000 window, the chapter sheet goes from 750px
to 118px for one chapter and the two-column track sheet from 750px to 154px
for one audio and one subtitle track, both still clamping at the cap.
Add SheetSplitColumns for the three side-by-side sheet layouts. A bare
VerticalDivider has no intrinsic height, so it inflated those rows to the cap
on its own; the rule now paints from a Positioned.fill that cannot size the
Stack. IntrinsicHeight is not an option because a Viewport has no intrinsics.
Because sheets are bottom-anchored, a content-driven height moves the sheet's
top edge and everything above the change point. Three surfaces opt out for
that reason and say so at the call site: SubtitleSearchSheet and its language
picker keep filling, since both refilter under an autofocused field;
FiltersBottomSheet holds the outgoing page's height through its loading
transient; and RatingBottomSheet no longer hides MAL/AniList rows
asynchronously, which used to slide live rating controls down two rows several
hundred ms after open. Wrap the shared StateMessageWidget at the filters sheet
boundary rather than editing a widget with 33 filling call sites.
The host gains an AnimatedSize keyed per sheet session so nested pushes ease
while a replacing show adopts its own height, a 720px absolute height ceiling
on desktop windows only, and a min(max(25%, 96px), 60%) drag-dismiss threshold
so short sheets neither close on a nudge nor become undismissable.
Add videoControls.noAudioDevicesAvailable so the audio output page shows a
placeholder instead of a bare header while devices load.
Replaces the imperative play/pause/seek/positionSync message soup with a
single host-authored PlaybackState (seq-ordered, anchor-extrapolated,
phase machine: loading/waitingForPeers/paused/playing) that doubles as
the heartbeat, plus guest status reports and host-applied control
requests. Fixes the guest seek-back loop while the host loads (readiness
was keyed on a pre-load !buffering snapshot and heartbeats broadcast
frozen positions), adds real group buffering coordination (stall grace,
scheduled simultaneous resumes, 15s safety timeout), rate-nudge drift
correction with passthrough-aware seek fallback, session-scoped message
handling (no lost messages during episode-switch detach gaps), and an
expected-state ledger replacing the racy remote-action flag.
- Fix guest controls locked on join (use reactive context.select)
- Fix Google TV back button when controls hidden (focus recovery + global fallback)
- Fix profile switch screen focus lost on TV (explicit focus request)
- Add 15s host reconnect grace period with reconnecting overlay
- Add participant join/leave notification toasts
- Default to system language on first launch via findDeviceLocale()
edde746