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dees-catalog/readme.refactoring.md

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2025-06-24 10:45:06 +00:00
# WYSIWYG Editor Refactoring
## Summary of Changes
This refactoring cleaned up the wysiwyg editor implementation to fix focus, cursor position, and selection issues.
### Phase 1: Code Organization
#### 1. Removed Duplicate Code
- Removed duplicate `handleBlockInput` method from main component (was already in inputHandler)
- Removed duplicate `handleBlockKeyDown` method from main component (was already in keyboardHandler)
- Consolidated all input handling in the respective handler classes
#### 2. Simplified Focus Management
- Removed complex `updated` lifecycle method that was trying to maintain focus
- Simplified `handleBlockBlur` to not immediately close menus
- Added `requestAnimationFrame` to focus operations for better timing
- Removed `slashMenuOpenTime` tracking which was no longer needed
#### 3. Fixed Slash Menu Behavior
- Changed from `@mousedown` to `@click` events for better UX
- Added proper event prevention to avoid focus loss
- Menu now closes when clicking outside
- Simplified the insertBlock method to close menu first
### Phase 2: Cursor & Selection Fixes
#### 4. Enhanced Cursor Position Management
- Added `focusWithCursor()` method to block component for precise cursor positioning
- Improved `handleSlashCommand` to preserve cursor position when menu opens
- Added `getCaretCoordinates()` for accurate menu positioning based on cursor location
- Updated `focusBlock()` to support numeric cursor positions
#### 5. Fixed Selection Across Shadow DOM
- Added custom `block-text-selected` event to communicate selections across shadow boundaries
- Implemented `handleMouseUp()` in block component to detect selections
- Updated main component to listen for selection events from blocks
- Selection now works properly even with nested shadow DOMs
#### 6. Improved Slash Menu Close Behavior
- Added optional `clearSlash` parameter to `closeSlashMenu()`
- Escape key now properly clears the slash command
- Clicking outside clears the slash if menu is open
- Selecting an item preserves content and just transforms the block
### Technical Improvements
#### Block Component (`dees-wysiwyg-block`)
- Better focus management with immediate focus (removed unnecessary requestAnimationFrame)
- Added cursor position control methods
- Custom event dispatching for cross-shadow-DOM communication
- Improved content handling for different block types
#### Input Handler
- Preserves cursor position when showing slash menu
- Better caret coordinate calculation for menu positioning
- Ensures focus stays in the block when menu appears
#### Block Operations
- Enhanced `focusBlock()` to support start/end/numeric positions
- Better timing with requestAnimationFrame for focus operations
### Key Benefits
- Slash menu no longer causes focus or cursor position loss
- Text selection works properly across shadow DOM boundaries
- Cursor position is preserved when interacting with menus
- Cleaner, more maintainable code structure
- Better separation of concerns
## Testing
Use the test files in `.nogit/debug/`:
- `test-slash-menu.html` - Tests slash menu focus behavior
- `test-wysiwyg-formatting.html` - Tests text formatting
## Known Issues Fixed
- Slash menu disappearing immediately on first "/"
- Focus lost when slash menu opens
- Cursor position lost when typing "/"
- Text selection not working properly
- Selection events not propagating across shadow DOM
- Duplicate event handling causing conflicts