- Engine shortcut set (crates/engine/src/shortcuts.rs): bindings as data
(command, canonical chord, optional panel), panel shortcuts override app ones
while the panel has focus; per-OS modifiers (Cmd = Cmd/Ctrl, Ctrl = macOS
Control, folded into Ctrl elsewhere and reported as conflicts); conflict
detection, reassignment, undo/redo, Cancel restores; frontend commands
registered so tools/transport/panels are bindable too.
- Presets: FilmCraft Default, Premiere Pro / Final Cut Pro / Avid Media
Composer Compatible (key tables mapped onto FilmCraft command ids); custom
presets as JSON in <data dir>/Keyboard Shortcuts/, active set persisted,
Save As / Delete / Export / Import (Windows-notation files converted).
- shortcuts.* commands for agents/MCP (list/get/set/clear/undo/redo/conflicts/
forKey/resolve/presets/loadPreset/savePreset/deletePreset/export/import/audit).
- Premiere-default audit: commands without a shortcut get Premiere's key when
free (Shift+D Apply Default Transitions, Shift+J/L slow shuttle, Shift+K Play
Around, Project > Shift+O Open in Source Monitor); Audio Clip/Track Mixer
window shortcuts corrected (Shift+9 / Shift+6).
- Edit > Keyboard Shortcuts... (Cmd+Alt+K): keyboard drawn in code with
app/panel/both colouring and modifier filter, searchable command list with a
record-on-click Shortcut column and +, Key: detail list, conflict warnings,
Undo/Redo/Clear/Cancel/OK; automation ids shortcuts.*.
- Menus (in-app and native macOS key equivalents), command.list and the input
loop follow the active bindings live.
- Tests: 7 engine tests; scripted kittest test (record keys, live menu update,
reassignment, undo/redo, cancel, OK, panel-specific Left in History).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Root cause: not a lock. When the window is hidden or behind others (always when the app is
driven over the control channel), macOS App Nap drops every thread of the process to background
priority 4 and defers its timers. On a loaded machine (load avg ~150) a priority-4 process gets no
CPU: after Render In to Out + play the UI thread stayed runnable inside the run loop's timer
callout, every thread at PRI 4 (`ps -M`), 0 % CPU, control channel silent. Relaunched with App Nap
off the same script ran through: render 2–13 s instead of 15 s, every reply immediate (2/2 runs).
- apps/filmcraft/src/app_nap.rs: hold a user-initiated, latency-critical NSProcessInfo activity
for the life of the process (= NSAppSleepDisabled for a bundle; idle system sleep allowed).
- ui.screenshot: a hidden window or sleeping display never presents, so the screenshot event
never came and the UI repainted at full speed forever (100 % CPU). It now fails after 10 s with
"no frame was presented (window hidden or display asleep)" and polls at 60 Hz meanwhile.
Regression test: app_nap::tests (the activity is taken on macOS). The starvation itself needs a
hidden window on a loaded machine and is checked with the control-channel script in the commit
notes (captions.newTrack/add, markIn/Out, Full, renderInToOut wait, stop, playhead.set,
renderBar, ui.screenshot): all replies within 10 s.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Engine autosave module: Preferences (autoSave.enabled/intervalMinutes=5/maxVersions=20/
saveCurrentProject/recoveryJournal/recoveryIntervalSeconds), persisted in the per-user data
dir; prefs.get/set/reset commands.
- Background worker (filmcraft-autosave thread): the UI thread only hands over the Arc<Project>
snapshot; JSON encoding and atomic writes happen on the worker. Premiere-style auto-saves to
<project dir>/Auto-Save/<name>-YYYY-MM-DD_HH-MM-SS.fcproj (local time), only when changed,
rotated to Maximum Project Versions, optionally also saving the project.
- Recovery journal: debounced snapshot of unsaved changes in <data>/Recovery/<session>/ guarded
by an OS file lock; on launch, sessions whose lock is free and that left a snapshot are offered.
Clean quit removes the journal (or keeps it, marked cleanExit, if changes were unsaved).
- Commands: file.recover, file.discardRecovery, file.recoveryList, file.autoSaveNow,
file.autoSaveStatus, file.listAutoSaves.
- UI: Preferences ▸ Auto Save page (Edit ▸ Preferences, Cmd+,; FilmCraft ▸ Settings… on macOS),
"Recover Unsaved Changes" dialog at startup, Revert confirmation; all with automation ids.
- Desktop: --recover / --no-recover / --data-dir; local-time offset via chrono (clock).
- Verified in the app: edits, kill -9, relaunch, dialog, Recover restores the edits (unsaved, original path).
- docs/project-files.md: auto-save, recovery and measured costs (2,000 clips: 2.5 ms encode,
1.4 MB, ~30 ms atomic write+fsync, all off the UI thread). ROADMAP M11 updated.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
