- RecorderState.isFinalizing flag set during stopRecording → finishWriting
- applicationShouldTerminate returns .terminateLater if finalizing
- Shows alert '正在保存录制文件...' to inform user
- After save dialog completes, calls NSApp.reply(toApplicationShouldTerminate: true)
- All failure paths also check and resolve pendingTerminate
- Fixes: 9-min recording lost because user closed app before async finishWriting completed
- setupAudioTap: log all tracks at start, KVO count changes
- findAudioTrackID: log when assetTrack is nil (HLS not loaded)
- Polling: add async asset.load(.tracks) fallback after 5s
- Extend timeout from 20s to 30s
- Status log every 5s during polling
- Replaced text buttons with SF Symbol icon buttons (28x28)
- All features: folder/prev/play/next/volume+slider/track/repeat/fullscreen/playlist
- Removed Spacer() to prevent buttons from being clipped
- Single compact row layout, no overflow
- Video fills entire window via VideoPlayerRepresentable
- MiniPlayerIcon in top-left corner toggles ControlToolbar visibility
- ControlToolbar slides up from bottom with animation
- Removed Bricks JSON UI dependency for main view
- All toolbar features preserved: open/prev/play/next/volume/tracks/repeat/fullscreen/playlist
- Added i18n JSON files (zh.json, en.json) with auto language detection
- Updated miniplayer.ui to use i18n keys for all button labels
- Added MiniPlayerIcon overlay in top-left corner of main window
- Load i18n translations on app startup based on system locale
Root cause: every fullscreen exit destroyed the AVPlayerView, triggering
CoreMedia's FigNotificationCenterRemoveWeakListeners which races with
the main thread's autorelease pool drain. No amount of nil-ing the
player reference or delaying the close could prevent this race.
Solution: the fullscreen NSWindow + AVPlayerView are created ONCE on
first use and never destroyed. Toggle uses orderFront/orderOut instead
of makeKeyAndOrderFront/close. The AVPlayerView stays alive for the
entire app lifetime, so CoreMedia teardown never happens during toggle.
Also:
- Removed onDisappear { bridge.cleanup() } — cleanup during app
termination races with autorelease pool drain. Process exit handles
all teardown correctly.
- Double-click exit uses DispatchQueue.main.async to avoid calling
toggleFullscreen from inside the event monitor callback.
- isReleasedWhenClosed = false on fullscreen window
Root cause: when FullscreenPlayerView deallocates during window close,
AVPlayerLayer.player reference is released via autorelease pool drain
on main thread. CoreMedia background threads simultaneously access
sFigNotificationCenterWeakListenerLinks dictionary (weak listener
cleanup), causing use-after-free race condition.
Fix:
- toggleFullscreen(): set playerView.player = nil BEFORE fw.close()
- FullscreenPlayerView.viewWillMove(toWindow: nil): safety net to
nil out player when view is removed from window by any means
This ensures the AVPlayer reference is released synchronously on the
main thread, before any autorelease pool drain can race with CoreMedia
internal cleanup threads.
Root cause: addPeriodicTimeObserver's internal FigNotificationCenter weak
listener mechanism races with autorelease pool drain on main thread, causing
double-free of weak reference wrappers (KERN_INVALID_ADDRESS).
Changes:
- Replace addPeriodicTimeObserver with Timer.scheduledTimer (bypasses CoreMedia
weak listener infrastructure entirely)
- Remove ALL Task { @MainActor in } from observer callbacks — these created
unstructured tasks whose weak ref wrappers conflicted with CoreMedia internals
- Use DispatchQueue.main.async for KVO callbacks (may fire from non-main thread)
- Direct calls for queue: .main callbacks (NotificationCenter, end observer)
- Add isTearingDown flag to prevent callbacks firing during cleanup
- Fix cleanup() order: timer → KVO → notifications → replaceCurrentItem(nil)
- Fix FullscreenPlayerView: use addSublayer instead of replacing backing layer
- Add .onDisappear { bridge.cleanup() } to ensure cleanup before dealloc
- Remove Combine import (no longer needed)
- Remove KVO on player.timeControlStatus (fires from CoreMedia bg threads)
- Stop accessing item.duration in timer callback (triggers FigNotificationCenter weak listener ops)
- Check player.rate in timer callback instead for isPlaying state
- Remove replaceCurrentItem(nil) from cleanup to prevent CoreMedia state inconsistency
- Use cachedDuration exclusively in time display updates
- Fix actor isolation warning in endObserver callback
