electron

electron/preload.js

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+const { contextBridge, ipcRenderer } = require('electron');
+
+// Map command names to Electron IPC channels
+const commandMap = {
+  'window_minimize': 'window:minimize',
+  'window_maximize': 'window:maximize',
+  'window_unmaximize': 'window:unmaximize',
+  'window_close': 'window:close',
+  'window_is_maximized': 'window:is-maximized',
+  'window_start_drag': 'window:start-drag',
+  'read_clipboard_image': 'read-clipboard-image',
+  'open_external_url': 'open-external-url',
+  'get_youtube_stream': 'get-youtube-stream',
+  'start_background_sync': 'start-background-sync',
+  'stop_background_sync': 'stop-background-sync',
+  'get_background_sync_state': 'get-background-sync-state',
+  'check_for_updates': 'check-for-updates',
+  'download_update': 'download-update',
+  'install_update': 'install-update',
+  'get_desktop_sources': 'get-desktop-sources'
+};
+
+// Shared invoke function for legacy API compatibility
+const invokeHandler = async (command, args = {}) => {
+  try {
+    const channel = commandMap[command] || command;
+    const result = await ipcRenderer.invoke(channel, args);
+
+    // Return response in expected format
+    if (result && result.success === false) {
+      throw new Error(result.error || 'Unknown error');
+    }
+
+    // For commands that return data in a 'data' field
+    if (result && result.data !== undefined) {
+      return result.data;
+    }
+
+    // For simple commands that just return success/failure
+    return result;
+  } catch (error) {
+    console.error(`[Electron IPC] Error invoking ${command}:`, error);
+    throw error;
+  }
+};
+
+// Expose protected methods that allow the renderer process to use
+// ipcRenderer without exposing the entire object
+contextBridge.exposeInMainWorld('__TAURI_INTERNALS__', {
+  // Legacy API compatibility layer for existing frontend code
+  metadata: {
+    currentVersion: {
+      version: '2.0.0',
+      platform: process.platform,
+      arch: process.arch
+    }
+  },
+  // Add invoke function for legacy plugins
+  invoke: invokeHandler,
+  // Add stub for transformCallback to prevent errors with legacy plugins
+  transformCallback: (callback) => {
+    return callback;
+  }
+});
+
+contextBridge.exposeInMainWorld('__TAURI__', {
+  // Core IPC invoke - legacy API
+  invoke: invokeHandler,
+
+  // Event listeners (if needed for future events)
+  listen: (event, handler) => {
+    const subscription = (_, ...args) => handler(...args);
+    ipcRenderer.on(event, subscription);
+    
+    // Return unsubscribe function
+    return () => {
+      ipcRenderer.removeListener(event, subscription);
+    };
+  }
+});
+
+// Also expose under electron namespace for direct Electron APIs
+contextBridge.exposeInMainWorld('electron', {
+  platform: process.platform,
+  arch: process.arch,
+  versions: process.versions,
+  
+  // Window controls
+  window: {
+    minimize: () => ipcRenderer.invoke('window:minimize'),
+    maximize: () => ipcRenderer.invoke('window:maximize'),
+    unmaximize: () => ipcRenderer.invoke('window:unmaximize'),
+    close: () => ipcRenderer.invoke('window:close'),
+    isMaximized: () => ipcRenderer.invoke('window:is-maximized'),
+    startDrag: () => ipcRenderer.invoke('window:start-drag')
+  },
+  
+  // Clipboard
+  clipboard: {
+    readImage: () => ipcRenderer.invoke('read-clipboard-image')
+  },
+  
+  // External URLs
+  shell: {
+    openExternal: (url) => ipcRenderer.invoke('open-external-url', url)
+  },
+  
+  // YouTube
+  youtube: {
+    getStream: (url) => ipcRenderer.invoke('get-youtube-stream', url)
+  },
+  
+  // Background sync (stubs for desktop)
+  sync: {
+    start: (args) => ipcRenderer.invoke('start-background-sync', args),
+    stop: () => ipcRenderer.invoke('stop-background-sync'),
+    getState: () => ipcRenderer.invoke('get-background-sync-state')
+  },
+  
+  // Auto-updater
+  updater: {
+    checkForUpdates: () => ipcRenderer.invoke('check-for-updates'),
+    downloadUpdate: () => ipcRenderer.invoke('download-update'),
+    installUpdate: () => ipcRenderer.invoke('install-update'),
+    onUpdateAvailable: (callback) => {
+      ipcRenderer.on('update-available', (_, info) => callback(info));
+    },
+    onUpdateDownloadProgress: (callback) => {
+      ipcRenderer.on('update-download-progress', (_, progress) => callback(progress));
+    },
+    onUpdateDownloaded: (callback) => {
+      ipcRenderer.on('update-downloaded', (_, info) => callback(info));
+    }
+  },
+  
+  // Desktop capturer (for screen sharing)
+  desktopCapturer: {
+    getSources: (opts) => ipcRenderer.invoke('get-desktop-sources', opts)
+  }
+});
+
+// Preload script ready
+