add android server chat and multi chat;update android server page

lib/models/server_model.dart

@@ -1,29 +1,144 @@
+import 'dart:async';
 import 'dart:convert';
 import 'package:flutter/material.dart';
 import '../common.dart';
 import '../pages/server_page.dart';
 import 'model.dart';
 
+final _emptyIdShow = translate("connecting_status");
+
 class ServerModel with ChangeNotifier {
+  Timer? _interval;
+  bool _isStart = false;
   bool _mediaOk = false;
   bool _inputOk = false;
+  late bool _fileOk;
+  final _serverId = TextEditingController(text: _emptyIdShow);
+  final _serverPasswd = TextEditingController(text: "");
+
   List<Client> _clients = [];
 
+  bool get isStart => _isStart;
+
   bool get mediaOk => _mediaOk;
 
   bool get inputOk => _inputOk;
 
+  bool get fileOk => _fileOk;
+
+  TextEditingController get serverId => _serverId;
+
+  TextEditingController get serverPasswd => _serverPasswd;
+
   List<Client> get clients => _clients;
 
-  ServerModel();
+  ServerModel() {
+    ()async{
+      await Future.delayed(Duration(seconds: 2));
+      final file = FFI.getByName('option', 'enable-file-transfer');
+      debugPrint("got file in option:$file");
+      if (file.isEmpty) {
+        _fileOk = false;
+        Map<String, String> res = Map()
+          ..["name"] = "enable-file-transfer"
+          ..["value"] = "N";
+        FFI.setByName('option', jsonEncode(res)); // 重新设置默认值
+      } else {
+        if (file == "Y") {
+          _fileOk = true;
+        } else {
+          _fileOk = false;
+        }
+      }
+    }();
+
+  }
+
+  toggleFile() {
+    _fileOk = !_fileOk;
+    Map<String, String> res = Map()
+      ..["name"] = "enable-file-transfer"
+      ..["value"] = _fileOk ? 'Y' : 'N';
+    debugPrint("save option:$res");
+    FFI.setByName('option', jsonEncode(res));
+    notifyListeners();
+  }
+
+  Future<Null> startService() async {
+    _isStart = true;
+    notifyListeners();
+    FFI.setByName("ensure_init_event_queue");
+    _interval = Timer.periodic(Duration(milliseconds: 30), (timer) {
+      FFI.ffiModel.update("", (_, __) {});
+    });
+    await FFI.invokeMethod("init_service");
+    FFI.setByName("start_service");
+    getIDPasswd();
+  }
+
+  Future<Null> stopService() async {
+    _isStart = false;
+    release();
+    FFI.serverModel.closeAll();
+    await FFI.invokeMethod("stop_service");
+    FFI.setByName("stop_service");
+    notifyListeners();
+  }
+
+  Future<Null> initInput() async {
+    await FFI.invokeMethod("init_input");
+  }
+
+  getIDPasswd() async {
+    if (_serverId.text != _emptyIdShow && _serverPasswd.text != "") {
+      return;
+    }
+    var count = 0;
+    const maxCount = 10;
+    while (count < maxCount) {
+      await Future.delayed(Duration(seconds: 1));
+      final id = FFI.getByName("server_id");
+      final passwd = FFI.getByName("server_password");
+      if (id.isEmpty) {
+        continue;
+      } else {
+        _serverId.text = id;
+      }
+
+      if (passwd.isEmpty) {
+        continue;
+      } else {
+        _serverPasswd.text = passwd;
+      }
+
+      debugPrint(
+          "fetch id & passwd again at $count:id:${_serverId.text},passwd:${_serverPasswd.text}");
+      count++;
+      if (_serverId.text != _emptyIdShow && _serverPasswd.text.isNotEmpty) {
+        break;
+      }
+    }
+    notifyListeners();
+  }
+
+  release() {
+    _interval?.cancel();
+    _interval = null;
+  }
 
   changeStatue(String name, bool value) {
+    debugPrint("changeStatue value $value");
     switch (name) {
       case "media":
         _mediaOk = value;
+        debugPrint("value $value,_isStart:$_isStart");
+        if(value && !_isStart){
+          startService();
+        }
         break;
       case "input":
         _inputOk = value;
+        //TODO change option
         break;
       default:
         return;
@@ -36,76 +151,77 @@ class ServerModel with ChangeNotifier {
     debugPrint("getByName clients_state string:$res");
     try {
       final List clientsJson = jsonDecode(res);
-      _clients = clientsJson.map((clientJson) => Client.fromJson(jsonDecode(res))).toList();
+      _clients = clientsJson
+          .map((clientJson) => Client.fromJson(jsonDecode(res)))
+          .toList();
       debugPrint("updateClientState:${_clients.toString()}");
       notifyListeners();
     } catch (e) {}
   }
 
-  loginRequest(Map<String, dynamic> evt){
-    try{
+  loginRequest(Map<String, dynamic> evt) {
+    try {
       final client = Client.fromJson(jsonDecode(evt["client"]));
-      final Map<String,dynamic> response = Map();
+      final Map<String, dynamic> response = Map();
       response["id"] = client.id;
       DialogManager.show((setState, close) => CustomAlertDialog(
-          title: Text("Control Request"),
-          content: Column(
-            mainAxisSize: MainAxisSize.min,
-            mainAxisAlignment: MainAxisAlignment.center,
-            crossAxisAlignment: CrossAxisAlignment.start,
-            children: [
-              Text(translate("Do you accept?")),
-              SizedBox(height: 20),
-              clientInfo(client),
-            ],
-          ),
-          actions: [
-            TextButton(
-                child: Text(translate("Dismiss")),
-                onPressed: () {
-                  response["res"] = false;
-                  FFI.setByName("login_res", jsonEncode(response));
-                  close();
-                }),
-            ElevatedButton(
-                child: Text(translate("Accept")),
-                onPressed: () async {
-                  response["res"] = true;
-                  FFI.setByName("login_res", jsonEncode(response));
-                  if (!client.isFileTransfer)  {
-                    bool res = await FFI.invokeMethod("start_capture"); // to Android service
-                    debugPrint("_toAndroidStartCapture:$res");
-                  }
-                  _clients.add(client);
-                  notifyListeners();
-                  close();
-                }),
-
-          ]));
-    }catch (e){
+              title: Text("Control Request"),
+              content: Column(
+                mainAxisSize: MainAxisSize.min,
+                mainAxisAlignment: MainAxisAlignment.center,
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Text(translate("Do you accept?")),
+                  SizedBox(height: 20),
+                  clientInfo(client),
+                ],
+              ),
+              actions: [
+                TextButton(
+                    child: Text(translate("Dismiss")),
+                    onPressed: () {
+                      response["res"] = false;
+                      FFI.setByName("login_res", jsonEncode(response));
+                      close();
+                    }),
+                ElevatedButton(
+                    child: Text(translate("Accept")),
+                    onPressed: () async {
+                      response["res"] = true;
+                      FFI.setByName("login_res", jsonEncode(response));
+                      if (!client.isFileTransfer) {
+                        bool res = await FFI.invokeMethod(
+                            "start_capture"); // to Android service
+                        debugPrint("_toAndroidStartCapture:$res");
+                      }
+                      _clients.add(client);
+                      notifyListeners();
+                      close();
+                    }),
+              ]));
+    } catch (e) {
       debugPrint("loginRequest failed,error:$e");
     }
   }
 
-  void onClientLogin(Map<String, dynamic> evt){
-
-  }
+  void onClientLogin(Map<String, dynamic> evt) {}
 
   void onClientRemove(Map<String, dynamic> evt) {
-    try{
+    try {
       final id = int.parse(evt['id'] as String);
       Client client = _clients.singleWhere((c) => c.id == id);
       _clients.remove(client);
       notifyListeners();
-    }catch(e){
+    } catch (e) {
       debugPrint("onClientRemove failed,error:$e");
     }
   }
 
-  closeAll(){
+  closeAll() {
     _clients.forEach((client) {
-      FFI.setByName("close_conn",client.id.toString());
+      FFI.setByName("close_conn", client.id.toString());
     });
+    _clients = [];
   }
 }
 
@@ -136,4 +252,3 @@ class Client {
     return data;
   }
 }
-