do not show privacy action if peer does not support

Signed-off-by: fufesou <shuanglongchen@yeah.net>

flutter/lib/desktop/widgets/remote_menubar.dart

@@ -1170,7 +1170,7 @@ class _RemoteMenubarState extends State<RemoteMenubar> {
       }
       displayMenu.add(_createSwitchMenuEntry(
           'Lock after session end', 'lock-after-session-end', padding, true));
-      if (pi.platform == 'Windows') {
+      if (pi.features.privacyMode) {
         displayMenu.add(MenuEntrySwitch2<String>(
           switchType: SwitchType.scheckbox,
           text: translate('Privacy mode'),

flutter/lib/models/model.dart

@@ -344,6 +344,8 @@ class FfiModel with ChangeNotifier {
         _waitForImage[peerId] = true;
         _reconnects = 1;
       }
+      Map<String, dynamic> features = json.decode(evt['features']);
+      _pi.features.privacyMode = features['privacy_mode'] == 1;
     }
     notifyListeners();
   }
@@ -1328,6 +1330,10 @@ class Display {
   }
 }
 
+class Features {
+  bool privacyMode = false;
+}
+
 class PeerInfo {
   String version = '';
   String username = '';
@@ -1336,6 +1342,7 @@ class PeerInfo {
   bool sasEnabled = false;
   int currentDisplay = 0;
   List<Display> displays = [];
+  Features features = Features();
 }
 
 const canvasKey = 'canvas';

src/flutter.rs

@@ -8,7 +8,8 @@ use std::{
 use flutter_rust_bridge::{StreamSink, ZeroCopyBuffer};
 
 use hbb_common::{
-    bail, config::LocalConfig, message_proto::*, rendezvous_proto::ConnType, ResultType,
+    bail, config::LocalConfig, get_version_number, message_proto::*, rendezvous_proto::ConnType,
+    ResultType,
 };
 use serde_json::json;
 
@@ -299,6 +300,15 @@ impl InvokeUiSession for FlutterHandler {
             displays.push(h);
         }
         let displays = serde_json::ser::to_string(&displays).unwrap_or("".to_owned());
+        let mut features: HashMap<&str, i32> = Default::default();
+        for ref f in pi.features.iter() {
+            features.insert("privacy_mode", if f.privacy_mode { 1 } else { 0 });
+        }
+        // compatible with 1.1.9
+        if get_version_number(&pi.version) < get_version_number("1.2.0") {
+            features.insert("privacy_mode", 0);
+        }
+        let features = serde_json::ser::to_string(&features).unwrap_or("".to_owned());
         self.push_event(
             "peer_info",
             vec![
@@ -308,6 +318,7 @@ impl InvokeUiSession for FlutterHandler {
                 ("sas_enabled", &pi.sas_enabled.to_string()),
                 ("displays", &displays),
                 ("version", &pi.version),
+                ("features", &features),
                 ("current_display", &pi.current_display.to_string()),
             ],
         );

src/server/video_service.rs

@@ -21,9 +21,12 @@
 use super::{video_qos::VideoQoS, *};
 #[cfg(windows)]
 use crate::portable_service::client::PORTABLE_SERVICE_RUNNING;
-use hbb_common::tokio::sync::{
-    mpsc::{unbounded_channel, UnboundedReceiver, UnboundedSender},
-    Mutex as TokioMutex,
+use hbb_common::{
+    get_version_number,
+    tokio::sync::{
+        mpsc::{unbounded_channel, UnboundedReceiver, UnboundedSender},
+        Mutex as TokioMutex,
+    },
 };
 #[cfg(not(windows))]
 use scrap::Capturer;
@@ -92,7 +95,8 @@ pub fn get_privacy_mode_conn_id() -> i32 {
 
 pub fn is_privacy_mode_supported() -> bool {
     #[cfg(windows)]
-    return *IS_CAPTURER_MAGNIFIER_SUPPORTED;
+    return *IS_CAPTURER_MAGNIFIER_SUPPORTED
+        && get_version_number(&crate::VERSION) > get_version_number("1.1.9");
     #[cfg(not(windows))]
     return false;
 }