Initialize TvDetectionService on every platform so the existing
force_tv_mode setting drives the 10-foot TV interface on Windows,
macOS, and Linux, and surface the toggle in appearance settings there.
Desktop keeps real-mouse behavior in TV mode: InputModeTracker still
flips between pointer and keyboard modes (cursor hidden while
keyboard-driven), segmented controls keep their hover affordance, and
the settings backup section stays available (only Android TV lacks a
document picker).
Adds PlatformDetector.debugSetIsDesktopOSOverride so TV-device
simulations in widget tests don't inherit the desktop test host's
platform.
close#1409
Profile traces showed 100-370ms UI-thread frames while scrolling the
library screen, dominated by rebuilding and inflating media cards.
- Gate per-card focus/pointer chrome on input mode: FocusableWrapper
skips the scale/border wrappers and creates its AnimationController
lazily outside keyboard mode, and ClickableCursor plus the card tap
region only build MouseRegion/InkWell machinery on desktop - TV and
touch use a bare GestureDetector. Hub cards also drop their outer
gesture wrapper outside keyboard mode; the card's own tap region
always won the gesture arena anyway.
- Memoize sliver children (SliverChildMemo): browse/collections grids
and hub rows return identical widget instances for unchanged items,
so delegate swaps from pagination, watch-state, and deletion
setStates no longer rebuild every realized card inside layout. The
browse tab prunes the memo in lockstep with focus-node eviction so a
cached card can never resurrect a disposed FocusNode.
- Budget fresh inflation (CardInflationBudget): while a scrollable is
moving in pointer/touch mode at most one new card inflates per frame,
the rest render as SkeletonMediaCard and upgrade on following frames.
Hub rows also stop pre-inflating 250px of off-screen cards on entry.
Device traces: worst frame 373ms -> 103ms, per-card build 3.6ms ->
2.4ms median; remaining row-entry work is spread across frames.
In d-pad mode every unfocused FocusableActionBar button held its own
AnimatedOpacity(0.6) — 4-5 permanent saveLayers (one render pass each
on tiled TV GPUs) on discover and detail alike, every frame. While no
button in the row has focus (the entire time the user browses content)
the whole row now shares a single dim layer; per-button dims apply only
while the row holds focus.
The keyboard is a navigator route, so a screen swapping out its form
left it floating over the new content. showTvVirtualKeyboard now
returns a route handle and the field host closes it on dispose.
The TV keyboard dialog froze the field's callbacks at open time, so the
search screen's done key fell through to unfocus() once results arrived.
Resolve callbacks against the latest field widget at invoke time, and
give the search screen a TV submit handler that focuses the first result
or flushes the pending debounce.
- Replace hardcoded 4-tab system with data-driven visible tab list
- Shared libraries show only Browse + Playlists tabs
- Fix dpad navigation for shared libraries (no hidden tab targets)
- Switch to TickerProviderStateMixin to support tab controller recreation
- Navigate to library screen when tapping shared library sections
- Persist tab selection by name instead of index
edde746