opt: add microphone permission tip

flutter/lib/common.dart

@@ -1723,3 +1723,30 @@ Future<void> updateSystemWindowTheme() async {
     }
   }
 }
+/// macOS only
+///
+/// Note: not found a general solution for rust based AVFoundation bingding.
+/// [AVFoundation] crate has compile error.
+const kMacOSPermChannel = MethodChannel("org.rustdesk.rustdesk/macos");
+
+enum PermissionAuthorizeType {
+  undetermined,
+  authorized,
+  denied, // and restricted
+}
+
+Future<PermissionAuthorizeType> osxCanRecordAudio() async {
+  int res = await kMacOSPermChannel.invokeMethod("canRecordAudio");
+  print(res);
+  if (res > 0) {
+    return PermissionAuthorizeType.authorized;
+  } else if (res == 0) {
+    return PermissionAuthorizeType.undetermined;
+  } else {
+    return PermissionAuthorizeType.denied;
+  }
+}
+
+Future<bool> osxRequestAudio() async {
+  return await kMacOSPermChannel.invokeMethod("requestRecordAudio");
+}

flutter/lib/desktop/pages/desktop_home_page.dart

@@ -44,6 +44,7 @@ class _DesktopHomePageState extends State<DesktopHomePage>
   var watchIsCanScreenRecording = false;
   var watchIsProcessTrust = false;
   var watchIsInputMonitoring = false;
+  var watchIsCanRecordAudio = false;
   Timer? _updateTimer;
 
   @override
@@ -79,7 +80,16 @@ class _DesktopHomePageState extends State<DesktopHomePage>
                 buildTip(context),
                 buildIDBoard(context),
                 buildPasswordBoard(context),
-                buildHelpCards(),
+                FutureBuilder<Widget>(
+                  future: buildHelpCards(),
+                  builder: (_, data) {
+                    if (data.hasData) {
+                      return data.data!;
+                    } else {
+                      return const Offstage();
+                    }
+                  },
+                ),
               ],
             ),
           ),
@@ -302,7 +312,7 @@ class _DesktopHomePageState extends State<DesktopHomePage>
     );
   }
 
-  Widget buildHelpCards() {
+  Future<Widget> buildHelpCards() async {
     if (updateUrl.isNotEmpty) {
       return buildInstallCard(
           "Status",
@@ -348,6 +358,13 @@ class _DesktopHomePageState extends State<DesktopHomePage>
         return buildInstallCard("", "install_daemon_tip", "Install", () async {
           bind.mainIsInstalledDaemon(prompt: true);
         });
+      } else if ((await osxCanRecordAudio() !=
+          PermissionAuthorizeType.authorized)) {
+        return buildInstallCard("Permissions", "config_microphone", "Configure",
+            () async {
+          osxRequestAudio();
+          watchIsCanRecordAudio = true;
+        });
       }
     } else if (Platform.isLinux) {
       if (bind.mainCurrentIsWayland()) {
@@ -481,6 +498,20 @@ class _DesktopHomePageState extends State<DesktopHomePage>
           setState(() {});
         }
       }
+      if (watchIsCanRecordAudio) {
+        if (Platform.isMacOS) {
+          Future.microtask(() async {
+            if ((await osxCanRecordAudio() ==
+                PermissionAuthorizeType.authorized)) {
+              watchIsCanRecordAudio = false;
+              setState(() {});
+            }
+          });
+        } else {
+          watchIsCanRecordAudio = false;
+          setState(() {});
+        }
+      }
     });
     Get.put<RxBool>(svcStopped, tag: 'stop-service');
     rustDeskWinManager.registerActiveWindowListener(onActiveWindowChanged);

flutter/macos/Runner/Info.plist

@@ -43,6 +43,8 @@
 	<string>$(PRODUCT_COPYRIGHT)</string>
 	<key>NSMainNibFile</key>
 	<string>MainMenu</string>
+	<key>NSMicrophoneUsageDescription</key>
+	<string>Record the sound from microphone for the purpose of the remote desktop.</string>
 	<key>NSPrincipalClass</key>
 	<string>NSApplication</string>
 </dict>

flutter/macos/Runner/MainFlutterWindow.swift

@@ -1,4 +1,5 @@
 import Cocoa
+import AVFoundation
 import FlutterMacOS
 import desktop_multi_window
 // import bitsdojo_window_macos
@@ -81,6 +82,23 @@ class MainFlutterWindow: NSWindow {
                 case "terminate":
                     NSApplication.shared.terminate(self)
                     result(nil)
+                case "canRecordAudio":
+                    switch AVCaptureDevice.authorizationStatus(for: .audio) {
+                    case .authorized:
+                        result(1)
+                        break
+                    case .notDetermined:
+                        result(0)
+                        break
+                    default:
+                        result(-1)
+                        break
+                    }
+                case "requestRecordAudio":
+                    AVCaptureDevice.requestAccess(for: .audio, completionHandler: { granted in
+                        result(granted)
+                    })
+                    break
                 default:
                     result(FlutterMethodNotImplemented)
                 }