This directory contains TypeScript code inherited from the legacy ComfyUI JavaScript frontend project. The code has been migrated from JavaScript to TypeScript while maintaining compatibility with the original functionality.

When implementing new features, prefer using the new Vue3 system over the legacy scripts.

Key Components

ComfyApi (api.ts)

Main API client class that handles communication with the ComfyUI backend. Provides methods for:

Queue management
Model operations
Extension handling
WebSocket communication
User data management

ComfyApp (app.ts)

Core application class that manages:

Graph manipulation
Node management
Canvas interactions
Extension system
Workflow state

UI Components (ui/)

Collection of reusable UI components including:

Buttons and button groups
Popups and dialogs
Draggable lists
Image previews
Menu system
Settings dialog

Integration with Vite

All TypeScript exports are shimmed through Vite configuration to maintain compatibility with the legacy JavaScript codebase. The shimming logic can be found in vite.config.mts.

Legacy Compatibility

This codebase maintains compatibility with the original ComfyUI Legacy Frontend while providing TypeScript type safety and modern development features.

For users wanting to fall back to the legacy frontend, use the command line argument:

--front-end-version Comfy-Org/ComfyUI_legacy_frontend@latest