Mindpilot MCP

/** * Electron Preload Script * Exposes a safe, typed API to the renderer process via contextBridge */ import { contextBridge, ipcRenderer } from 'electron'; import { IPC_CHANNELS } from './ipc/channels.js'; // Type definitions for MCP events export interface MCPDiagramUpdate { diagram: string; title: string; id: string; } export interface MCPStatus { active: boolean; } // Type definitions for the exposed API export interface ElectronAPI { // Diagram operations renderDiagram: (diagram: string, background?: string, workingDir?: string, title?: string) => Promise<any>; validateDiagram: (diagram: string) => Promise<any>; // History operations getHistory: (collection?: string | null) => Promise<any[]>; saveDiagram: (diagram: string, title: string, collection: string | null) => Promise<any>; updateDiagram: (id: string, updates: any) => Promise<any>; deleteDiagram: (id: string) => Promise<any>; moveDiagram: (id: string, collection: string | null) => Promise<any>; // Collection operations getCollections: () => Promise<string[]>; createCollection: (name: string) => Promise<any>; // App operations getStatus: () => Promise<any>; openExternal: (url: string) => Promise<any>; showSaveDialog: (options: any) => Promise<any>; showOpenDialog: (options: any) => Promise<any>; getVersion: () => Promise<string>; // Window operations minimizeWindow: () => Promise<void>; maximizeWindow: () => Promise<void>; closeWindow: () => Promise<void>; // Theme operations getTheme: () => Promise<'light' | 'dark'>; setTheme: (theme: 'light' | 'dark' | 'system') => Promise<any>; // MCP event listeners onMCPDiagramUpdate: (callback: (data: MCPDiagramUpdate) => void) => () => void; onMCPStatus: (callback: (data: MCPStatus) => void) => () => void; // Window event listeners onWindowFocus: (callback: () => void) => () => void; onWindowBlur: (callback: () => void) => () => void; // Platform info platform: NodeJS.Platform; isElectron: true; } // Expose the API to the renderer const electronAPI: ElectronAPI = { // Diagram operations renderDiagram: (diagram, background, workingDir, title) => ipcRenderer.invoke(IPC_CHANNELS.DIAGRAM_RENDER, diagram, background, workingDir, title), validateDiagram: (diagram) => ipcRenderer.invoke(IPC_CHANNELS.DIAGRAM_VALIDATE, diagram), // History operations getHistory: (collection) => ipcRenderer.invoke(IPC_CHANNELS.HISTORY_LIST, collection), saveDiagram: (diagram, title, collection) => ipcRenderer.invoke(IPC_CHANNELS.HISTORY_SAVE, diagram, title, collection), updateDiagram: (id, updates) => ipcRenderer.invoke(IPC_CHANNELS.HISTORY_UPDATE, id, updates), deleteDiagram: (id) => ipcRenderer.invoke(IPC_CHANNELS.HISTORY_DELETE, id), moveDiagram: (id, collection) => ipcRenderer.invoke(IPC_CHANNELS.HISTORY_MOVE, id, collection), // Collection operations getCollections: () => ipcRenderer.invoke(IPC_CHANNELS.COLLECTIONS_LIST), createCollection: (name) => ipcRenderer.invoke(IPC_CHANNELS.COLLECTIONS_CREATE, name), // App operations getStatus: () => ipcRenderer.invoke(IPC_CHANNELS.APP_GET_STATUS), openExternal: (url) => ipcRenderer.invoke(IPC_CHANNELS.APP_OPEN_EXTERNAL, url), showSaveDialog: (options) => ipcRenderer.invoke(IPC_CHANNELS.APP_SHOW_SAVE_DIALOG, options), showOpenDialog: (options) => ipcRenderer.invoke(IPC_CHANNELS.APP_SHOW_OPEN_DIALOG, options), getVersion: () => ipcRenderer.invoke(IPC_CHANNELS.APP_GET_VERSION), // Window operations minimizeWindow: () => ipcRenderer.invoke(IPC_CHANNELS.WINDOW_MINIMIZE), maximizeWindow: () => ipcRenderer.invoke(IPC_CHANNELS.WINDOW_MAXIMIZE), closeWindow: () => ipcRenderer.invoke(IPC_CHANNELS.WINDOW_CLOSE), // Theme operations getTheme: () => ipcRenderer.invoke(IPC_CHANNELS.THEME_GET), setTheme: (theme) => ipcRenderer.invoke(IPC_CHANNELS.THEME_SET, theme), // MCP event listeners - return unsubscribe function onMCPDiagramUpdate: (callback) => { const handler = (_event: Electron.IpcRendererEvent, data: MCPDiagramUpdate) => callback(data); ipcRenderer.on(IPC_CHANNELS.MCP_DIAGRAM_UPDATE, handler); return () => ipcRenderer.removeListener(IPC_CHANNELS.MCP_DIAGRAM_UPDATE, handler); }, onMCPStatus: (callback) => { const handler = (_event: Electron.IpcRendererEvent, data: MCPStatus) => callback(data); ipcRenderer.on(IPC_CHANNELS.MCP_STATUS, handler); return () => ipcRenderer.removeListener(IPC_CHANNELS.MCP_STATUS, handler); }, // Window event listeners - return unsubscribe function onWindowFocus: (callback) => { const handler = () => callback(); ipcRenderer.on(IPC_CHANNELS.WINDOW_FOCUS, handler); return () => ipcRenderer.removeListener(IPC_CHANNELS.WINDOW_FOCUS, handler); }, onWindowBlur: (callback) => { const handler = () => callback(); ipcRenderer.on(IPC_CHANNELS.WINDOW_BLUR, handler); return () => ipcRenderer.removeListener(IPC_CHANNELS.WINDOW_BLUR, handler); }, // Platform info platform: process.platform, isElectron: true, }; contextBridge.exposeInMainWorld('electron', electronAPI); // Type augmentation for window object declare global { interface Window { electron: ElectronAPI; } }