feat: add global hotkey (#2401)

ui/desktop/src/App.tsx

@@ -551,6 +551,20 @@ export default function App() {
     };
   }, []);
 
+  // Focus the first found input field
+  useEffect(() => {
+    const handleFocusInput = (_event: IpcRendererEvent) => {
+      const inputField = document.querySelector('input[type="text"], textarea') as HTMLInputElement;
+      if (inputField) {
+        inputField.focus();
+      }
+    };
+    window.electron.on('focus-input', handleFocusInput);
+    return () => {
+      window.electron.off('focus-input', handleFocusInput);
+    };
+  }, []);
+
   // TODO: modify
   const handleConfirm = async () => {
     if (pendingLink) {

ui/desktop/src/main.ts

@@ -10,6 +10,7 @@ import {
   powerSaveBlocker,
   Tray,
   App,
+  globalShortcut,
 } from 'electron';
 import { Buffer } from 'node:buffer';
 import started from 'electron-squirrel-startup';
@@ -720,7 +721,48 @@ ipcMain.handle('get-allowed-extensions', async () => {
   }
 });
 
+const createNewWindow = async (app: App, dir?: string | null) => {
+  const recentDirs = loadRecentDirs();
+  const openDir = dir || (recentDirs.length > 0 ? recentDirs[0] : undefined);
+  createChat(app, undefined, openDir);
+};
+
+const focusWindow = () => {
+  const windows = BrowserWindow.getAllWindows();
+  if (windows.length > 0) {
+    windows.forEach((win) => {
+      win.show();
+    });
+    windows[windows.length - 1].webContents.send('focus-input');
+  } else {
+    createNewWindow(app);
+  }
+};
+
+const registerGlobalHotkey = (accelerator: string) => {
+  // Unregister any existing shortcuts first
+  globalShortcut.unregisterAll();
+
+  try {
+    const ret = globalShortcut.register(accelerator, () => {
+      focusWindow();
+    });
+
+    if (!ret) {
+      console.error('Failed to register global hotkey');
+      return false;
+    }
+    return true;
+  } catch (e) {
+    console.error('Error registering global hotkey:', e);
+    return false;
+  }
+};
+
 app.whenReady().then(async () => {
+  // Register the default global hotkey
+  registerGlobalHotkey('CommandOrControl+Alt+Shift+G');
+
   session.defaultSession.webRequest.onBeforeSendHeaders((details, callback) => {
     details.requestHeaders['Origin'] = 'http://localhost:5173';
     callback({ cancel: false, requestHeaders: details.requestHeaders });
@@ -739,9 +781,7 @@ app.whenReady().then(async () => {
   const { dirPath } = parseArgs();
 
   createTray();
-  const recentDirs = loadRecentDirs();
-  let openDir = dirPath || (recentDirs.length > 0 ? recentDirs[0] : null);
-  createChat(app, undefined, openDir);
+  createNewWindow(app, dirPath);
 
   // Get the existing menu
   const menu = Menu.getApplicationMenu();
@@ -817,6 +857,17 @@ app.whenReady().then(async () => {
         },
       })
     );
+
+    // Add menu item for hotkey
+    fileMenu?.submenu.append(
+      new MenuItem({
+        label: 'Focus Goose Window',
+        accelerator: 'CmdOrCtrl+Alt+Shift+G',
+        click() {
+          focusWindow();
+        },
+      })
+    );
   }
 
   if (menu) {
@@ -978,6 +1029,11 @@ async function getAllowList(): Promise<string[]> {
   }
 }
 
+app.on('will-quit', () => {
+  // Unregister all shortcuts when quitting
+  globalShortcut.unregisterAll();
+});
+
 // Quit when all windows are closed, except on macOS or if we have a tray icon.
 app.on('window-all-closed', () => {
   // Only quit if we're not on macOS or don't have a tray icon