switch sides

Signed-off-by: 21pages <pages21@163.com>

flutter/lib/desktop/pages/remote_page.dart

@@ -33,10 +33,12 @@ class RemotePage extends StatefulWidget {
     Key? key,
     required this.id,
     required this.menubarState,
+    this.switchUuid,
   }) : super(key: key);
 
   final String id;
   final MenubarState menubarState;
+  final String? switchUuid;
   final SimpleWrapper<State<RemotePage>?> _lastState = SimpleWrapper(null);
 
   FFI get ffi => (_lastState.value! as _RemotePageState)._ffi;
@@ -100,7 +102,10 @@ class _RemotePageState extends State<RemotePage>
       showKBLayoutTypeChooserIfNeeded(
           _ffi.ffiModel.pi.platform, _ffi.dialogManager);
     });
-    _ffi.start(widget.id);
+    _ffi.start(
+      widget.id,
+      switchUuid: widget.switchUuid,
+    );
     WidgetsBinding.instance.addPostFrameCallback((_) {
       SystemChrome.setEnabledSystemUIMode(SystemUiMode.manual, overlays: []);
       _ffi.dialogManager

flutter/lib/desktop/pages/remote_tab_page.dart

@@ -64,6 +64,7 @@ class _ConnectionTabPageState extends State<ConnectionTabPage> {
           key: ValueKey(peerId),
           id: peerId,
           menubarState: _menubarState,
+          switchUuid: params['switch_uuid'],
         ),
       ));
       _update_remote_count();
@@ -84,6 +85,7 @@ class _ConnectionTabPageState extends State<ConnectionTabPage> {
       if (call.method == "new_remote_desktop") {
         final args = jsonDecode(call.arguments);
         final id = args['id'];
+        final switchUuid = args['switch_uuid'];
         window_on_top(windowId());
         ConnectionTypeState.init(id);
         tabController.add(TabInfo(
@@ -96,6 +98,7 @@ class _ConnectionTabPageState extends State<ConnectionTabPage> {
             key: ValueKey(id),
             id: id,
             menubarState: _menubarState,
+            switchUuid: switchUuid,
           ),
         ));
       } else if (call.method == "onDestroy") {

flutter/lib/desktop/pages/server_page.dart

@@ -516,6 +516,15 @@ class _CmControlPanel extends StatelessWidget {
     return Column(
       mainAxisAlignment: MainAxisAlignment.end,
       children: [
+        Offstage(
+          offstage: !client.fromSwitch,
+          child: buildButton(context,
+              color: Colors.purple,
+              onClick: () => handleSwitchBack(context),
+              icon: Icon(Icons.reply, color: Colors.white),
+              text: "Switch Sides",
+              textColor: Colors.white),
+        ),
         Offstage(
           offstage: !showElevation,
           child: buildButton(context, color: Colors.green[700], onClick: () {
@@ -674,6 +683,10 @@ class _CmControlPanel extends StatelessWidget {
       windowManager.close();
     }
   }
+
+  void handleSwitchBack(BuildContext context) {
+    bind.cmSwitchBack(connId: client.id);
+  }
 }
 
 void checkClickTime(int id, Function() callback) async {