refact, mobile, privacy mode menu

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

flutter/lib/mobile/pages/remote_page.dart

@@ -21,6 +21,7 @@ import '../../models/input_model.dart';
 import '../../models/model.dart';
 import '../../models/platform_model.dart';
 import '../../utils/image.dart';
+import '../widgets/dialog.dart';
 
 final initText = '1' * 1024;
 
@@ -807,6 +808,16 @@ void showOptions(
   List<TToggleMenu> displayToggles =
       await toolbarDisplayToggle(context, id, gFFI);
 
+  List<TToggleMenu> privacyModeList = [];
+  // privacy mode
+  final privacyModeState = PrivacyModeState.find(id);
+  if (gFFI.ffiModel.keyboard && gFFI.ffiModel.pi.features.privacyMode) {
+    privacyModeList = toolbarPrivacyMode(privacyModeState, context, id, gFFI);
+    if (privacyModeList.length == 1) {
+      displayToggles.add(privacyModeList[0]);
+    }
+  }
+
   dialogManager.show((setState, close, context) {
     var viewStyle =
         (viewStyleRadios.isNotEmpty ? viewStyleRadios[0].groupValue : '').obs;
@@ -849,10 +860,21 @@ void showOptions(
             title: e.value.child)))
         .toList();
 
+    Widget privacyModeWidget = Offstage();
+    if (privacyModeList.length > 1) {
+      privacyModeWidget = ListTile(
+        contentPadding: EdgeInsets.zero,
+        visualDensity: VisualDensity.compact,
+        title: Text(translate('Privacy mode')),
+        onTap: () => setPrivacyModeDialog(
+            dialogManager, privacyModeList, privacyModeState),
+      );
+    }
+
     return CustomAlertDialog(
       content: Column(
           mainAxisSize: MainAxisSize.min,
-          children: displays + radios + toggles),
+          children: displays + radios + toggles + [privacyModeWidget]),
     );
   }, clickMaskDismiss: true, backDismiss: true);
 }