fix: restore Windows desktop notifications

desktop/src-tauri/src/lib.rs

@@ -830,6 +830,26 @@ async fn macos_send_notification(
         .await
 }
 
+#[tauri::command]
+fn open_windows_notification_settings() -> Result<bool, String> {
+    open_windows_notification_settings_impl()
+}
+
+#[cfg(target_os = "windows")]
+fn open_windows_notification_settings_impl() -> Result<bool, String> {
+    StdCommand::new("explorer.exe")
+        .arg("ms-settings:notifications")
+        .spawn()
+        .map_err(|err| format!("open Windows notification settings: {err}"))?;
+
+    Ok(true)
+}
+
+#[cfg(not(target_os = "windows"))]
+fn open_windows_notification_settings_impl() -> Result<bool, String> {
+    Ok(false)
+}
+
 async fn run_notification_bridge<T, F>(operation: F) -> Result<T, String>
 where
     T: Send + 'static,
@@ -1533,7 +1553,8 @@ pub fn run() {
             terminal_kill,
             macos_notification_permission_state,
             macos_request_notification_permission,
-            macos_send_notification
+            macos_send_notification,
+            open_windows_notification_settings
         ]);
 
     // macOS: native menu bar (traffic-light overlay style)

desktop/src/__tests__/generalSettings.test.tsx

@@ -218,7 +218,7 @@ describe('Settings > General tab', () => {
     })
     expect(desktopNotificationsMock.notifyDesktop).toHaveBeenCalledWith({
       title: 'Claude Code Haha notifications are enabled',
-      body: 'Permission prompts and completed agent replies will now use macOS notifications.',
+      body: 'Permission prompts and completed agent replies will now use system notifications.',
     })
   })
 

desktop/src/i18n/locales/en.ts

@@ -655,7 +655,7 @@ export const en = {
   'settings.general.notificationsAuthorize': 'Authorize',
   'settings.general.notificationsOpenSettings': 'Open Settings',
   'settings.general.notificationsTestTitle': 'Claude Code Haha notifications are enabled',
-  'settings.general.notificationsTestBody': 'Permission prompts and completed agent replies will now use macOS notifications.',
+  'settings.general.notificationsTestBody': 'Permission prompts and completed agent replies will now use system notifications.',
   'settings.general.webFetchPreflightTitle': 'WebFetch Preflight',
   'settings.general.webFetchPreflightDescription': 'Desktop sessions skip Claude\'s domain preflight by default to avoid false failures on third-party providers and restricted networks.',
   'settings.general.webFetchPreflightEnabled': 'Skip WebFetch domain preflight',

desktop/src/i18n/locales/zh.ts

@@ -657,7 +657,7 @@ export const zh: Record<TranslationKey, string> = {
   'settings.general.notificationsAuthorize': '授权通知',
   'settings.general.notificationsOpenSettings': '打开系统设置',
   'settings.general.notificationsTestTitle': 'Claude Code Haha 通知已启用',
-  'settings.general.notificationsTestBody': '后续授权确认和 Agent 回复完成都会通过 macOS 系统通知提醒。',
+  'settings.general.notificationsTestBody': '后续授权确认和 Agent 回复完成都会通过系统通知提醒。',
   'settings.general.webFetchPreflightTitle': 'WebFetch 预检',
   'settings.general.webFetchPreflightDescription': '桌面端默认跳过 Claude 的域名预检，避免第三方服务商或受限网络下出现误报失败。',
   'settings.general.webFetchPreflightEnabled': '跳过 WebFetch 域名预检',

desktop/src/lib/desktopNotifications.test.ts

@@ -12,6 +12,9 @@ const coreApiMock = vi.hoisted(() => ({
 const eventApiMock = vi.hoisted(() => ({
   listen: vi.fn(),
 }))
+const shellApiMock = vi.hoisted(() => ({
+  open: vi.fn(),
+}))
 const requestUserAttentionMock = vi.hoisted(() => vi.fn())
 const windowApiMock = vi.hoisted(() => ({
   requestUserAttention: requestUserAttentionMock,
@@ -28,11 +31,13 @@ vi.mock('@tauri-apps/plugin-notification', () => notificationPluginMock)
 vi.mock('@tauri-apps/api/core', () => coreApiMock)
 vi.mock('@tauri-apps/api/event', () => eventApiMock)
 vi.mock('@tauri-apps/api/window', () => windowApiMock)
+vi.mock('@tauri-apps/plugin-shell', () => shellApiMock)
 
 import {
   getDesktopNotificationPermission,
   installDesktopNotificationClickListener,
   notifyDesktop,
+  openDesktopNotificationSettings,
   requestDesktopNotificationPermission,
   resetDesktopNotificationsForTests,
   setNativeNotificationSenderForTests,
@@ -45,6 +50,7 @@ describe('desktopNotifications', () => {
     resetDesktopNotificationsForTests()
     coreApiMock.invoke.mockReset()
     eventApiMock.listen.mockReset()
+    shellApiMock.open.mockReset()
     notificationPluginMock.isPermissionGranted.mockReset()
     notificationPluginMock.requestPermission.mockReset()
     notificationPluginMock.sendNotification.mockReset()
@@ -231,6 +237,57 @@ describe('desktopNotifications', () => {
     expect(notificationPluginMock.requestPermission).toHaveBeenCalledTimes(1)
   })
 
+  it('reads and requests Windows notification permission through the native plugin command', async () => {
+    Object.defineProperty(navigator, 'platform', {
+      configurable: true,
+      value: 'Win32',
+    })
+    coreApiMock.invoke
+      .mockResolvedValueOnce(true)
+      .mockResolvedValueOnce('granted')
+
+    await expect(getDesktopNotificationPermission()).resolves.toBe('granted')
+    await expect(requestDesktopNotificationPermission()).resolves.toBe('granted')
+
+    expect(coreApiMock.invoke).toHaveBeenNthCalledWith(1, 'plugin:notification|is_permission_granted')
+    expect(coreApiMock.invoke).toHaveBeenNthCalledWith(2, 'plugin:notification|request_permission')
+    expect(notificationPluginMock.isPermissionGranted).not.toHaveBeenCalled()
+    expect(notificationPluginMock.requestPermission).not.toHaveBeenCalled()
+  })
+
+  it('sends Windows notifications when the native plugin reports permission granted', async () => {
+    Object.defineProperty(navigator, 'platform', {
+      configurable: true,
+      value: 'Win32',
+    })
+    coreApiMock.invoke.mockResolvedValueOnce(true)
+
+    await expect(notifyDesktop({
+      title: 'Permission required',
+      body: 'Approve command execution',
+    })).resolves.toBe(true)
+
+    expect(coreApiMock.invoke).toHaveBeenCalledWith('plugin:notification|is_permission_granted')
+    expect(notificationPluginMock.isPermissionGranted).not.toHaveBeenCalled()
+    expect(notificationPluginMock.sendNotification).toHaveBeenCalledWith({
+      title: 'Permission required',
+      body: 'Approve command execution',
+    })
+  })
+
+  it('opens Windows notification settings through the native command', async () => {
+    Object.defineProperty(navigator, 'platform', {
+      configurable: true,
+      value: 'Win32',
+    })
+    coreApiMock.invoke.mockResolvedValueOnce(true)
+
+    await expect(openDesktopNotificationSettings()).resolves.toBe(true)
+
+    expect(coreApiMock.invoke).toHaveBeenCalledWith('open_windows_notification_settings')
+    expect(shellApiMock.open).not.toHaveBeenCalled()
+  })
+
   it('reports and requests macOS notification permission through the native bridge', async () => {
     Object.defineProperty(navigator, 'platform', {
       configurable: true,

desktop/src/lib/desktopNotifications.ts

@@ -26,6 +26,7 @@ type NativeNotificationPayload = {
 
 type NativeNotificationSender = (options: NativeNotificationPayload) => Promise<boolean> | boolean
 export type DesktopNotificationPermission = NotificationPermission | 'unsupported'
+type PluginPermissionState = DesktopNotificationPermission | 'prompt' | 'prompt-with-rationale'
 
 const TARGET_EXTRA_KEY = 'ccHahaTarget'
 const notifiedKeys = new Set<string>()
@@ -46,10 +47,12 @@ function readBrowserNotificationPermission(): DesktopNotificationPermission {
 function detectPlatform(): 'darwin' | 'win32' | 'linux' | 'unknown' {
   const platform = typeof navigator !== 'undefined' ? navigator.platform.toLowerCase() : ''
   const userAgent = typeof navigator !== 'undefined' ? navigator.userAgent.toLowerCase() : ''
-  const raw = `${platform} ${userAgent}`
+  if (platform.includes('mac')) return 'darwin'
-  if (raw.includes('mac')) return 'darwin'
+  if (platform.includes('win')) return 'win32'
-  if (raw.includes('win')) return 'win32'
+  if (platform.includes('linux')) return 'linux'
-  if (raw.includes('linux')) return 'linux'
+  if (userAgent.includes('mac')) return 'darwin'
+  if (userAgent.includes('win')) return 'win32'
+  if (userAgent.includes('linux')) return 'linux'
   return 'unknown'
 }
 
@@ -64,6 +67,46 @@ function getNotificationSettingsUrl(): string | null {
   }
 }
 
+function normalizePermission(value: unknown): DesktopNotificationPermission {
+  if (value === true) return 'granted'
+  if (value === false) return 'denied'
+  if (value === null) return 'default'
+  if (value === 'prompt' || value === 'prompt-with-rationale') return 'default'
+  return ['default', 'denied', 'granted', 'unsupported'].includes(value as string)
+    ? value as DesktopNotificationPermission
+    : 'unsupported'
+}
+
+async function invokeWindowsNotificationPermissionState(): Promise<DesktopNotificationPermission | null> {
+  if (detectPlatform() !== 'win32') return null
+
+  try {
+    const { invoke } = await import('@tauri-apps/api/core')
+    const granted = await invoke<boolean | null>('plugin:notification|is_permission_granted')
+    return normalizePermission(granted)
+  } catch (err) {
+    if (typeof console !== 'undefined') {
+      console.warn('[desktopNotifications] failed to read Windows notification permission:', err)
+    }
+    return 'unsupported'
+  }
+}
+
+async function invokeWindowsNotificationPermissionRequest(): Promise<DesktopNotificationPermission | null> {
+  if (detectPlatform() !== 'win32') return null
+
+  try {
+    const { invoke } = await import('@tauri-apps/api/core')
+    const permission = await invoke<PluginPermissionState>('plugin:notification|request_permission')
+    return normalizePermission(permission)
+  } catch (err) {
+    if (typeof console !== 'undefined') {
+      console.warn('[desktopNotifications] failed to request Windows notification permission:', err)
+    }
+    return 'unsupported'
+  }
+}
+
 async function invokeMacNotificationPermissionState(): Promise<DesktopNotificationPermission | null> {
   if (detectPlatform() !== 'darwin') return null
 
@@ -187,6 +230,9 @@ export async function getDesktopNotificationPermission(): Promise<DesktopNotific
   const macPermission = await invokeMacNotificationPermissionState()
   if (macPermission) return macPermission
 
+  const windowsPermission = await invokeWindowsNotificationPermissionState()
+  if (windowsPermission) return windowsPermission
+
   try {
     const { isPermissionGranted } = await import('@tauri-apps/plugin-notification')
     if (await isPermissionGranted()) return 'granted'
@@ -200,6 +246,9 @@ export async function requestDesktopNotificationPermission(): Promise<DesktopNot
   const macPermission = await invokeMacNotificationPermissionRequest()
   if (macPermission) return macPermission
 
+  const windowsPermission = await invokeWindowsNotificationPermissionRequest()
+  if (windowsPermission) return windowsPermission
+
   try {
     const {
       isPermissionGranted,
@@ -217,6 +266,16 @@ export async function openDesktopNotificationSettings(): Promise<boolean> {
   const url = getNotificationSettingsUrl()
   if (!url) return false
 
+  if (detectPlatform() === 'win32') {
+    try {
+      const { invoke } = await import('@tauri-apps/api/core')
+      const opened = await invoke<boolean>('open_windows_notification_settings')
+      if (opened) return true
+    } catch {
+      // Fall back to shell.open/window.open below.
+    }
+  }
+
   try {
     const { open } = await import('@tauri-apps/plugin-shell')
     await open(url)
@@ -240,7 +299,9 @@ async function sendNativeNotification(options: { title: string; body?: string; t
     sendNotification,
   } = await import('@tauri-apps/plugin-notification')
 
-  if (!(await isPermissionGranted())) {
+  const windowsPermission = await invokeWindowsNotificationPermissionState()
+  const permissionGranted = windowsPermission ? windowsPermission === 'granted' : await isPermissionGranted()
+  if (!permissionGranted) {
     return false
   }