Add comprehensive auto-save functionality to prevent data loss.
Features:
- Auto-save every 30 seconds
- Saves all layers with canvas data
- Preserves layer masks
- Saves layer properties (visibility, opacity, blend mode, etc.)
- Toast notification on restore
- Utility functions for managing auto-save:
* hasAutoSave() - Check if auto-save exists
* loadAutoSave() - Restore from auto-save
* clearAutoSave() - Clear saved data
* getAutoSaveTime() - Get save timestamp
- Converts canvas to data URLs for storage
- Restores canvas from data URLs
- Handles errors gracefully
Changes:
- Created hooks/use-auto-save.ts
- useAutoSave() hook for periodic saving
- Saves project structure to localStorage
- Auto-save key: 'paint-ui-autosave'
- 30-second save interval
- Includes timestamp for restore info
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Implements image import feature that adds images as new layers without clearing existing work:
**New Import Image Function** (`hooks/use-file-operations.ts`):
- `importImage()` - Creates new layer with imported image
- Preserves all existing layers and canvas state
- Automatically names layer from filename (removes extension)
- Loading indicator during import process
- Success/error toast notifications
- Supports all common image formats (PNG, JPG, WEBP, etc.)
**File Menu Integration** (`components/editor/file-menu.tsx`):
- Added "Import Image..." menu item with ImagePlus icon
- Positioned after "Open..." for logical flow
- Separate file input for import (only accepts images)
- Import handler with file input reset
- Keyboard accessible with proper ARIA roles
**Key Differences from Open:**
- **Open** - Replaces entire canvas (clears all layers, resets dimensions)
- **Import** - Adds image as new layer (preserves existing work)
**User Experience:**
- File > Import Image... opens native file picker
- Only image files accepted (image/*)
- Import creates layer with image dimensions
- Layer positioned at origin (0, 0)
- Can import multiple images as separate layers
- Works alongside existing drag & drop functionality
**Use Cases:**
- Adding reference images to canvas
- Building collages from multiple images
- Importing assets without losing current work
- Layer-based compositing workflows
All functionality tested and working with no build errors.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Added comprehensive touch support for mobile/tablet usage:
Touch Gestures Hook:
- Created useTouchGestures hook for pinch-to-zoom and two-finger pan
- Handles multi-touch events with distance calculation
- Integrated with canvas store for zoom and pan state
- Prevents default touch behaviors (pull-to-refresh, page scroll)
Features:
- Pinch-to-zoom: Two-finger pinch gesture for zoom in/out
- Two-finger pan: Pan canvas with two fingers
- Touch drawing: Single touch works for all drawing tools (pointer events already supported)
- Min/max zoom limits (0.1x - 32x)
- Smooth gesture handling with distance thresholds
UI Improvements:
- Added touch-action: none CSS to prevent default touch behaviors
- Added touch-none Tailwind class for better touch handling
- Canvas container properly handles touch events
Mobile Experience:
- Drawing tools work with single touch
- Zoom/pan gestures feel natural
- No interference with browser touch behaviors
- Optimized for tablets and touch-enabled devices
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Added a complete toast notification system with:
- Toast store using Zustand for state management
- Toast component with 4 types: success, error, warning, info
- Animated slide-in/slide-out transitions
- Auto-dismiss after configurable duration
- Close button on each toast
- Utility functions for easy access (toast.success(), toast.error(), etc.)
Integrated toast notifications into file operations:
- Success notifications for: open image, open project, export image, save project
- Error notifications for: failed operations
- Warning notifications for: unsupported file types
UI Features:
- Stacks toasts in top-right corner
- Color-coded by type with icons (CheckCircle, AlertCircle, AlertTriangle, Info)
- Accessible with ARIA attributes
- Smooth animations using custom CSS keyframes
This provides immediate user feedback for all major operations throughout
the application.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Complete undo/redo functionality with robust command pattern architecture:
**Command Pattern Infrastructure (core/commands/)**
- BaseCommand: Abstract class for all undoable operations
- Command merging support for consecutive similar operations
- Timestamp tracking for intelligent merging
**Layer Commands**
- CreateLayerCommand: Create layer with full undo support
- DeleteLayerCommand: Delete with restoration of original position
- UpdateLayerCommand: Property updates with auto-merging (1s window)
- DuplicateLayerCommand: Duplicate with full canvas cloning
- ReorderLayerCommand: Z-order changes with bidirectional support
- MergeLayerDownCommand: Merge with canvas state preservation
**History Store (store/history-store.ts)**
- Dual stack architecture (undo/redo)
- Maximum 50 commands with automatic pruning
- Execution guard to prevent recursion
- Command merging for reduced history bloat
- Full state inspection (canUndo, canRedo, getHistorySummary)
**Layer Operations Wrapper (lib/layer-operations.ts)**
- History-enabled wrappers for all layer operations
- Drop-in replacements for direct store calls
- Automatic command creation and execution
**Keyboard Shortcuts (hooks/use-keyboard-shortcuts.ts)**
- Ctrl+Z / Cmd+Z: Undo
- Ctrl+Shift+Z / Cmd+Shift+Z: Redo
- Ctrl+Y / Cmd+Y: Redo (alternative)
- Input field detection (no interference with text editing)
- Platform-aware display strings (⌘ on Mac, Ctrl on Windows/Linux)
**UI Components**
- History Panel: Visual undo/redo stack
- Shows all commands with timestamps
- Current state indicator
- Undone commands shown with reduced opacity
- Command counter (undoable/redoable)
- Editor Toolbar: Undo/Redo buttons
- Disabled state when stack is empty
- Tooltip with keyboard shortcuts
- Visual feedback on hover
- Layers Panel: History-integrated actions
- Duplicate layer button (with history)
- Delete layer (with confirmation and history)
- Toggle visibility (with history)
- Prevents deleting last layer
**Integration**
- All layer operations now support undo/redo
- Initial background layer creation bypasses history
- New layers created via UI add to history
- Keyboard shortcuts active globally (except in inputs)
**Performance**
- Command merging reduces memory usage
- Efficient canvas cloning for layer restoration
- No memory leaks with proper cleanup
- Dev server: 451ms startup (unchanged)
**Type Safety**
- Command interface with execute/undo/merge
- HistoryState interface for store
- Full TypeScript coverage
Ready for Phase 4: Drawing Tools implementation
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
