feat: implement Phase 4 - selection and editing features
Added comprehensive audio editing capabilities:
- Region selection with Shift+drag on waveform
- Visual selection feedback with blue overlay and borders
- AudioBuffer manipulation utilities (cut, copy, paste, delete, trim)
- EditControls UI component with edit buttons
- Keyboard shortcuts (Ctrl+A, Ctrl+X, Ctrl+C, Ctrl+V, Delete, Escape)
- Clipboard management for cut/copy/paste operations
- Updated useAudioPlayer hook with loadBuffer method
New files:
- types/selection.ts - Selection and ClipboardData interfaces
- lib/audio/buffer-utils.ts - AudioBuffer manipulation utilities
- components/editor/EditControls.tsx - Edit controls UI
Modified files:
- components/editor/Waveform.tsx - Added selection support
- components/editor/AudioEditor.tsx - Integrated edit operations
- lib/hooks/useAudioPlayer.ts - Added loadBuffer method
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Co-Authored-By: Claude <noreply@anthropic.com>
Sebastian Krüger
ed9ac0b24f