yellowjacket/.planning/phases/09-scan-cancellation-keyboard-shortcuts/09-02-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
09-scan-cancellation-keyboard-shortcuts	02	ui	keyboard-shortcuts wails lit toml config	phase provides 09-scan-cancellation-keyboard-shortcuts ShortcutsConfigChanged event (added in 09-01 codegen)	Go shortcuts config package with defaults and validation Wails binding methods for shortcut CRUD (GetShortcuts, SetShortcuts, SetShortcut, ResetShortcuts) Frontend KeyboardShortcutService singleton with scope resolution ShortcutsStore with Wails persistence and event sync ShortcutsController for Lit component integration buildKeyString utility for shortcut capture widget	09-04-shortcuts-settings-ui 09-05-shortcuts-integration	added patterns Keyboard shortcut service singleton pattern (document keydown listener) Shadow DOM deep active element resolution for scope detection Canonical key string format: Ctrl+Alt+Shift+Key	created modified backend/shortcuts/config.go frontend/src/services/keyboard-shortcut-service.ts frontend/src/store/shortcuts-store.ts frontend/src/store/controllers/shortcuts-controller.ts backend/config/config.go backend/events/events.go frontend/src/events.ts frontend/src/store/index.ts frontend/index.ts frontend/wailsjs/go/config/Config.d.ts frontend/wailsjs/go/config/Config.js frontend/wailsjs/go/models.ts	Use ChangeVolume(delta) Wails binding for relative volume instead of reading state + SetVolume Use CurrentPositionSeconds + Seek for relative seek (no delta API available) Dispatch tracklist actions as CustomEvents on document for loose coupling Remove hardcoded Ctrl+F handler in index.ts — keyboard shortcut service now handles it	services/ directory for singleton services (first usage) data-shortcut-scope attribute on elements for panel-specific shortcuts shortcut: event prefix for panel-specific shortcut dispatch	KEY-01 KEY-04 KEY-05	35min	2026-03-07

Phase 9 Plan 2: Keyboard Shortcuts Config & Service Summary

Go shortcuts config with TOML persistence, frontend KeyboardShortcutService singleton with scope resolution, shadow DOM active element walking, and text input suppression

Performance

• Duration: 35 min
• Started: 2026-03-07T02:14:19Z
• Completed: 2026-03-07T02:49:20Z
• Tasks: 2
• Files modified: 12

Accomplishments

• Go shortcuts package with 17 default bindings (player, nav, app, tracklist)
• Wails binding methods for shortcut CRUD: GetShortcuts, SetShortcuts, SetShortcut, ResetShortcuts
• Frontend KeyboardShortcutService with shadow DOM scope resolution and text input suppression
• ShortcutsStore syncs bindings via Wails events with queueMicrotask coalescing
• Replaced hardcoded Ctrl+F handler with service-based dispatch

Task Commits

Each task was committed atomically:

1. Task 1: Create backend shortcuts config package and wire into main config - 6285ca9 (feat)
2. Task 2: Create frontend keyboard shortcut service, store, and controller - 40d4815 (feat)

Files Created/Modified

• backend/shortcuts/config.go - Shortcuts config package with defaults, ApplyDefaults, Validate
• backend/config/config.go - Shortcuts field, getter/setter Wails bindings, event emission
• backend/events/events.go - ShortcutsConfigChanged event constant
• frontend/src/events.ts - Generated TypeScript event constant
• frontend/src/services/keyboard-shortcut-service.ts - Singleton keydown listener with scope resolution
• frontend/src/store/shortcuts-store.ts - Store with Wails persistence and event sync
• frontend/src/store/controllers/shortcuts-controller.ts - ReactiveController for Lit components
• frontend/src/store/index.ts - Added shortcuts store and controller exports
• frontend/index.ts - Removed hardcoded Ctrl+F, added service import
• frontend/wailsjs/go/config/Config.d.ts - Generated Wails TypeScript bindings
• frontend/wailsjs/go/config/Config.js - Generated Wails JavaScript stubs
• frontend/wailsjs/go/models.ts - Generated Wails model types

Decisions Made

• Used ChangeVolume(delta) Wails binding for relative volume adjustment (cleaner than state read + SetVolume)
• Used CurrentPositionSeconds() + Seek(target) for relative seeking (no delta seek API exists)
• Panel-specific actions (tracklist.play, tracklist.delete) dispatch as CustomEvents on document for loose coupling — track-list component can listen without import dependency
• Removed the hardcoded Ctrl+F keydown handler from index.ts — the keyboard shortcut service now handles nav.searchAlt → Ctrl+F

Deviations from Plan

Auto-fixed Issues

1. [Rule 3 - Blocking] Fixed wsl lint error in library.go

• Found during: Task 1 (pre-commit hook failure)
• Issue: backend/library/library.go:593 had missing blank line before logger call (from Plan 01 commit)
• Fix: Added blank line before l.logger.Info("scan cancelled, skipping orphan cleanup")
• Files modified: backend/library/library.go
• Verification: golangci-lint passes with 0 issues
• Committed in: 6285ca9 (Task 1 commit)

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Total deviations: 1 auto-fixed (1 blocking) Impact on plan: Trivial lint fix required to unblock pre-commit hook. No scope creep.

Issues Encountered

• Pre-commit hooks caused significant delays — golangci-lint runs on entire project and codegen-check verifies working tree cleanliness. Concurrent Plan 01 agent commits created race conditions with git staging. Resolved by stashing unrelated changes and ensuring clean working tree before commit.

User Setup Required

None - no external service configuration required.

Next Phase Readiness

• Shortcuts foundation complete — default bindings work out of the box
• Ready for Plan 03 (scan control UI) and Plan 04 (shortcuts settings UI)
• data-shortcut-scope attribute ready for track-list and queue-panel components to adopt
• buildKeyString utility exported for the shortcut capture widget in Plan 04

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Phase: 09-scan-cancellation-keyboard-shortcuts Completed: 2026-03-07