feat: add single/multi window manager wrapper & fix issue causing input twice

flutter/lib/desktop/pages/connection_tab_page.dart

@@ -0,0 +1,66 @@
+import 'dart:convert';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_hbb/desktop/pages/remote_page.dart';
+import 'package:flutter_hbb/models/model.dart';
+import 'package:flutter_hbb/utils/multi_window_manager.dart';
+
+class ConnectionTabPage extends StatefulWidget {
+  final Map<String, dynamic> params;
+
+  const ConnectionTabPage({Key? key, required this.params}) : super(key: key);
+
+  @override
+  State<ConnectionTabPage> createState() => _ConnectionTabPageState(params);
+}
+
+class _ConnectionTabPageState extends State<ConnectionTabPage>
+    with SingleTickerProviderStateMixin {
+  // refactor List<int> when using multi-tab
+  // this singleton is only for test
+  late String connectionId;
+  late TabController tabController;
+
+  _ConnectionTabPageState(Map<String, dynamic> params) {
+    connectionId = params['id'] ?? "";
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    rustDeskWinManager.setMethodHandler((call, fromWindowId) async {
+      print(
+          "call ${call.method} with args ${call.arguments} from window ${fromWindowId}");
+      // for simplify, just replace connectionId
+      if (call.method == "new_remote_desktop") {
+        setState(() {
+          FFI.close();
+          connectionId = jsonDecode(call.arguments)["id"];
+        });
+      }
+    });
+    tabController = TabController(length: 1, vsync: this);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      children: [
+        TabBar(
+            controller: tabController,
+            isScrollable: true,
+            labelColor: Colors.black87,
+            physics: NeverScrollableScrollPhysics(),
+            tabs: [
+              Tab(
+                text: connectionId,
+              ),
+            ]),
+        Expanded(
+            child: TabBarView(controller: tabController, children: [
+          RemotePage(key: ValueKey(connectionId), id: connectionId)
+        ]))
+      ],
+    );
+  }
+}