flutter_desktop: handle privacy mode back notifications

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

flutter/lib/common.dart

@@ -194,14 +194,20 @@ void msgBox(String type, String title, String text, {bool? hasCancel}) {
               style: TextStyle(color: MyTheme.accent))));
 
   SmartDialog.dismiss();
-  final buttons = [
-    wrap(Translator.call('OK'), () {
-      SmartDialog.dismiss();
-      backToHome();
-    })
-  ];
+  List<Widget> buttons = [];
+  if (type != "connecting" && type != "success" && type.indexOf("nook") < 0) {
+    buttons.insert(
+        0,
+        wrap(Translator.call('OK'), () {
+          SmartDialog.dismiss();
+          backToHome();
+        }));
+  }
   if (hasCancel == null) {
-    hasCancel = type != 'error';
+    // hasCancel = type != 'error';
+    hasCancel = type.indexOf("error") < 0 &&
+        type.indexOf("nocancel") < 0 &&
+        type != "restarting";
   }
   if (hasCancel) {
     buttons.insert(
@@ -210,6 +216,14 @@ void msgBox(String type, String title, String text, {bool? hasCancel}) {
           SmartDialog.dismiss();
         }));
   }
+  // TODO: test this button
+  if (type.indexOf("hasclose") >= 0) {
+    buttons.insert(
+        0,
+        wrap(Translator.call('Close'), () {
+          SmartDialog.dismiss();
+        }));
+  }
   DialogManager.show((setState, close) => CustomAlertDialog(
       title: Text(translate(title), style: TextStyle(fontSize: 21)),
       content: Text(Translator.call(text), style: TextStyle(fontSize: 15)),

flutter/lib/desktop/pages/remote_page.dart

@@ -604,8 +604,12 @@ class _RemotePageState extends State<RemotePage>
           await bind.getSessionToggleOption(id: id, arg: 'privacy-mode') !=
               true) {
         more.add(PopupMenuItem<String>(
-            child: Text(translate((_ffi.ffiModel.inputBlocked ? 'Unb' : 'B') +
-                'lock user input')),
+            child: Consumer<FfiModel>(
+                builder: (_context, ffiModel, _child) => () {
+                      return Text(translate(
+                          (ffiModel.inputBlocked ? 'Unb' : 'B') +
+                              'lock user input'));
+                    }()),
             value: 'block-input'));
       }
     }
@@ -951,7 +955,11 @@ void showOptions(String id) async {
       more.add(getToggle(
           id, setState, 'lock-after-session-end', 'Lock after session end'));
       if (pi.platform == 'Windows') {
-        more.add(getToggle(id, setState, 'privacy-mode', 'Privacy mode'));
+        more.add(Consumer<FfiModel>(
+            builder: (_context, _ffiModel, _child) => () {
+                  return getToggle(
+                      id, setState, 'privacy-mode', 'Privacy mode');
+                }()));
       }
     }
     var setQuality = (String? value) {

flutter/lib/models/model.dart

@@ -173,6 +173,10 @@ class FfiModel with ChangeNotifier {
         parent.target?.serverModel.onClientRemove(evt);
       } else if (name == 'update_quality_status') {
         parent.target?.qualityMonitorModel.updateQualityStatus(evt);
+      } else if (name == 'update_block_input_state') {
+        updateBlockInputState(evt);
+      } else if (name == 'update_privacy_mode') {
+        updatePrivacyMode(evt);
       }
     };
   }
@@ -228,6 +232,10 @@ class FfiModel with ChangeNotifier {
         parent.target?.serverModel.onClientRemove(evt);
       } else if (name == 'update_quality_status') {
         parent.target?.qualityMonitorModel.updateQualityStatus(evt);
+      } else if (name == 'update_block_input_state') {
+        updateBlockInputState(evt);
+      } else if (name == 'update_privacy_mode') {
+        updatePrivacyMode(evt);
       }
     };
     platformFFI.setEventCallback(cb);
@@ -331,6 +339,15 @@ class FfiModel with ChangeNotifier {
     }
     notifyListeners();
   }
+
+  updateBlockInputState(Map<String, dynamic> evt) {
+    _inputBlocked = evt['input_state'] == 'on';
+    notifyListeners();
+  }
+
+  updatePrivacyMode(Map<String, dynamic> evt) {
+    notifyListeners();
+  }
 }
 
 class ImageModel with ChangeNotifier {

flutter/lib/utils/multi_window_manager.dart

@@ -1,4 +1,5 @@
 import 'dart:convert';
+import 'dart:ui';
 
 import 'package:desktop_multi_window/desktop_multi_window.dart';
 import 'package:flutter/services.dart';