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538 lines
15 KiB
Dart
538 lines
15 KiB
Dart
import 'dart:async';
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import 'dart:convert';
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import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:flutter_hbb/models/platform_model.dart';
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import 'package:wakelock/wakelock.dart';
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import '../common.dart';
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import '../mobile/pages/server_page.dart';
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import 'model.dart';
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const KLoginDialogTag = "LOGIN";
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const kUseTemporaryPassword = "use-temporary-password";
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const kUsePermanentPassword = "use-permanent-password";
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const kUseBothPasswords = "use-both-passwords";
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class ServerModel with ChangeNotifier {
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bool _isStart = false; // Android MainService status
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bool _mediaOk = false;
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bool _inputOk = false;
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bool _audioOk = false;
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bool _fileOk = false;
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int _connectStatus = 0; // Rendezvous Server status
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String _verificationMethod = "";
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String _temporaryPasswordLength = "";
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late String _emptyIdShow;
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late final TextEditingController _serverId;
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final _serverPasswd = TextEditingController(text: "");
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Map<int, Client> _clients = {};
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bool get isStart => _isStart;
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bool get mediaOk => _mediaOk;
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bool get inputOk => _inputOk;
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bool get audioOk => _audioOk;
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bool get fileOk => _fileOk;
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int get connectStatus => _connectStatus;
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String get verificationMethod {
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final index = [
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kUseTemporaryPassword,
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kUsePermanentPassword,
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kUseBothPasswords
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].indexOf(_verificationMethod);
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if (index < 0) {
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_verificationMethod = kUseBothPasswords;
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}
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return _verificationMethod;
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}
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set verificationMethod(String method) {
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_verificationMethod = method;
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bind.mainSetOption(key: "verification-method", value: method);
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}
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String get temporaryPasswordLength {
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final lengthIndex = ["6", "8", "10"].indexOf(_temporaryPasswordLength);
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if (lengthIndex < 0) {
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_temporaryPasswordLength = "6";
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}
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return _temporaryPasswordLength;
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}
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set temporaryPasswordLength(String length) {
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_temporaryPasswordLength = length;
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bind.mainSetOption(key: "temporary-password-length", value: length);
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}
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TextEditingController get serverId => _serverId;
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TextEditingController get serverPasswd => _serverPasswd;
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Map<int, Client> get clients => _clients;
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final controller = ScrollController();
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WeakReference<FFI> parent;
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ServerModel(this.parent) {
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_emptyIdShow = translate("Generating ...");
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_serverId = TextEditingController(text: this._emptyIdShow);
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Timer.periodic(Duration(seconds: 1), (timer) async {
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var status = await bind.mainGetOnlineStatue();
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if (status > 0) {
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status = 1;
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}
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if (status != _connectStatus) {
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_connectStatus = status;
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notifyListeners();
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}
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final res = await bind.mainCheckClientsLength(length: _clients.length);
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if (res != null) {
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debugPrint("clients not match!");
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updateClientState(res);
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}
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updatePasswordModel();
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});
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}
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/// 1. check android permission
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/// 2. check config
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/// audio true by default (if permission on) (false default < Android 10)
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/// file true by default (if permission on)
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checkAndroidPermission() async {
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// audio
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if (androidVersion < 30 || !await PermissionManager.check("audio")) {
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_audioOk = false;
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bind.mainSetOption(key: "enable-audio", value: "N");
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} else {
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final audioOption = await bind.mainGetOption(key: 'enable-audio');
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_audioOk = audioOption.isEmpty;
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}
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// file
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if (!await PermissionManager.check("file")) {
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_fileOk = false;
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bind.mainSetOption(key: "enable-file-transfer", value: "N");
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} else {
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final fileOption = await bind.mainGetOption(key: 'enable-file-transfer');
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_fileOk = fileOption.isEmpty;
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}
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// input (mouse control) false by default
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bind.mainSetOption(key: "enable-keyboard", value: "N");
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notifyListeners();
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}
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updatePasswordModel() async {
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var update = false;
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final temporaryPassword = await bind.mainGetTemporaryPassword();
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final verificationMethod =
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await bind.mainGetOption(key: "verification-method");
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final temporaryPasswordLength =
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await bind.mainGetOption(key: "temporary-password-length");
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final oldPwdText = _serverPasswd.text;
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if (_serverPasswd.text != temporaryPassword) {
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_serverPasswd.text = temporaryPassword;
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}
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if (verificationMethod == kUsePermanentPassword) {
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_serverPasswd.text = '-';
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}
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if (oldPwdText != _serverPasswd.text) {
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update = true;
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}
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if (_verificationMethod != verificationMethod) {
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_verificationMethod = verificationMethod;
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update = true;
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}
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if (_temporaryPasswordLength != temporaryPasswordLength) {
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_temporaryPasswordLength = temporaryPasswordLength;
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update = true;
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}
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if (update) {
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notifyListeners();
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}
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}
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toggleAudio() async {
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if (!_audioOk && !await PermissionManager.check("audio")) {
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final res = await PermissionManager.request("audio");
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if (!res) {
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// TODO handle fail
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return;
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}
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}
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_audioOk = !_audioOk;
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bind.mainSetOption(key: "enable-audio", value: _audioOk ? '' : 'N');
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notifyListeners();
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}
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toggleFile() async {
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if (!_fileOk && !await PermissionManager.check("file")) {
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final res = await PermissionManager.request("file");
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if (!res) {
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// TODO handle fail
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return;
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}
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}
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_fileOk = !_fileOk;
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bind.mainSetOption(key: "enable-file-transfer", value: _fileOk ? '' : 'N');
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notifyListeners();
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}
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toggleInput() {
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if (_inputOk) {
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parent.target?.invokeMethod("stop_input");
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} else {
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if (parent.target != null) {
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showInputWarnAlert(parent.target!);
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}
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}
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}
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/// Toggle the screen sharing service.
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toggleService() async {
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if (_isStart) {
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final res = await parent.target?.dialogManager
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.show<bool>((setState, close) => CustomAlertDialog(
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title: Row(children: [
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Icon(Icons.warning_amber_sharp,
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color: Colors.redAccent, size: 28),
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SizedBox(width: 10),
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Text(translate("Warning")),
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]),
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content: Text(translate("android_stop_service_tip")),
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actions: [
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TextButton(
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onPressed: () => close(),
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child: Text(translate("Cancel"))),
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ElevatedButton(
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onPressed: () => close(true),
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child: Text(translate("OK"))),
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],
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));
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if (res == true) {
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stopService();
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}
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} else {
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final res = await parent.target?.dialogManager
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.show<bool>((setState, close) => CustomAlertDialog(
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title: Row(children: [
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Icon(Icons.warning_amber_sharp,
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color: Colors.redAccent, size: 28),
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SizedBox(width: 10),
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Text(translate("Warning")),
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]),
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content: Text(translate("android_service_will_start_tip")),
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actions: [
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TextButton(
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onPressed: () => close(),
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child: Text(translate("Cancel"))),
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ElevatedButton(
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onPressed: () => close(true),
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child: Text(translate("OK"))),
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],
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));
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if (res == true) {
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startService();
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}
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}
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}
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/// Start the screen sharing service.
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Future<Null> startService() async {
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_isStart = true;
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notifyListeners();
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// TODO
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parent.target?.ffiModel.updateEventListener("");
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await parent.target?.invokeMethod("init_service");
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await bind.mainStartService();
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_fetchID();
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updateClientState();
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if (!Platform.isLinux) {
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// current linux is not supported
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Wakelock.enable();
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}
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}
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/// Stop the screen sharing service.
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Future<Null> stopService() async {
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_isStart = false;
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// TODO
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closeAll();
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await parent.target?.invokeMethod("stop_service");
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await bind.mainStopService();
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notifyListeners();
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if (!Platform.isLinux) {
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// current linux is not supported
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Wakelock.disable();
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}
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}
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Future<Null> initInput() async {
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await parent.target?.invokeMethod("init_input");
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}
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Future<bool> setPermanentPassword(String newPW) async {
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await bind.mainSetPermanentPassword(password: newPW);
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await Future.delayed(Duration(milliseconds: 500));
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final pw = await bind.mainGetPermanentPassword();
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if (newPW == pw) {
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return true;
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} else {
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return false;
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}
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}
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_fetchID() async {
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final old = _serverId.text;
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var count = 0;
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const maxCount = 10;
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while (count < maxCount) {
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await Future.delayed(Duration(seconds: 1));
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final id = await bind.mainGetMyId();
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if (id.isEmpty) {
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continue;
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} else {
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_serverId.text = id;
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}
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debugPrint("fetch id again at $count:id:${_serverId.text}");
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count++;
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if (_serverId.text != old) {
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break;
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}
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}
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notifyListeners();
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}
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changeStatue(String name, bool value) {
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debugPrint("changeStatue value $value");
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switch (name) {
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case "media":
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_mediaOk = value;
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if (value && !_isStart) {
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startService();
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}
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break;
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case "input":
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if (_inputOk != value) {
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bind.mainSetOption(key: "enable-keyboard", value: value ? '' : 'N');
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}
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_inputOk = value;
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break;
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default:
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return;
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}
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notifyListeners();
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}
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updateClientState([String? json]) async {
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var res = await bind.mainGetClientsState();
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try {
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final List clientsJson = jsonDecode(res);
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for (var clientJson in clientsJson) {
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final client = Client.fromJson(clientJson);
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_clients[client.id] = client;
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}
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notifyListeners();
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} catch (e) {
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debugPrint("Failed to updateClientState:$e");
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}
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}
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void loginRequest(Map<String, dynamic> evt) {
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try {
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final client = Client.fromJson(jsonDecode(evt["client"]));
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if (_clients.containsKey(client.id)) {
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return;
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}
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_clients[client.id] = client;
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scrollToBottom();
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notifyListeners();
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showLoginDialog(client);
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} catch (e) {
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debugPrint("Failed to call loginRequest,error:$e");
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}
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}
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void showLoginDialog(Client client) {
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parent.target?.dialogManager.show(
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(setState, close) => CustomAlertDialog(
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title: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Text(translate(client.isFileTransfer
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? "File Connection"
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: "Screen Connection")),
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IconButton(
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onPressed: () {
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close();
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},
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icon: Icon(Icons.close))
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]),
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content: Column(
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mainAxisSize: MainAxisSize.min,
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mainAxisAlignment: MainAxisAlignment.center,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(translate("Do you accept?")),
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clientInfo(client),
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Text(
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translate("android_new_connection_tip"),
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style: TextStyle(color: Colors.black54),
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),
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],
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),
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actions: [
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TextButton(
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child: Text(translate("Dismiss")),
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onPressed: () {
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sendLoginResponse(client, false);
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close();
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}),
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ElevatedButton(
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child: Text(translate("Accept")),
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onPressed: () {
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sendLoginResponse(client, true);
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close();
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}),
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],
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),
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tag: getLoginDialogTag(client.id));
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}
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scrollToBottom() {
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Future.delayed(Duration(milliseconds: 200), () {
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controller.animateTo(controller.position.maxScrollExtent,
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duration: Duration(milliseconds: 200),
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curve: Curves.fastLinearToSlowEaseIn);
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});
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}
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void sendLoginResponse(Client client, bool res) async {
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if (res) {
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bind.serverLoginRes(connId: client.id, res: res);
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if (!client.isFileTransfer) {
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parent.target?.invokeMethod("start_capture");
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}
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parent.target?.invokeMethod("cancel_notification", client.id);
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_clients[client.id]?.authorized = true;
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notifyListeners();
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} else {
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bind.serverLoginRes(connId: client.id, res: res);
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parent.target?.invokeMethod("cancel_notification", client.id);
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_clients.remove(client.id);
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}
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}
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void onClientAuthorized(Map<String, dynamic> evt) {
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try {
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final client = Client.fromJson(jsonDecode(evt['client']));
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parent.target?.dialogManager.dismissByTag(getLoginDialogTag(client.id));
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_clients[client.id] = client;
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scrollToBottom();
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notifyListeners();
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} catch (e) {}
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}
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void onClientRemove(Map<String, dynamic> evt) {
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try {
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final id = int.parse(evt['id'] as String);
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if (_clients.containsKey(id)) {
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_clients.remove(id);
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parent.target?.dialogManager.dismissByTag(getLoginDialogTag(id));
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parent.target?.invokeMethod("cancel_notification", id);
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}
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notifyListeners();
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} catch (e) {
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debugPrint("onClientRemove failed,error:$e");
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}
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}
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closeAll() {
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_clients.forEach((id, client) {
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bind.serverCloseConnection(connId: id);
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});
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_clients.clear();
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}
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}
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class Client {
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int id = 0; // client connections inner count id
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bool authorized = false;
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bool isFileTransfer = false;
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String name = "";
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String peerId = ""; // peer user's id,show at app
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bool keyboard = false;
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bool clipboard = false;
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bool audio = false;
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Client(this.authorized, this.isFileTransfer, this.name, this.peerId,
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this.keyboard, this.clipboard, this.audio);
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Client.fromJson(Map<String, dynamic> json) {
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id = json['id'];
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authorized = json['authorized'];
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isFileTransfer = json['is_file_transfer'];
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name = json['name'];
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peerId = json['peer_id'];
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keyboard = json['keyboard'];
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clipboard = json['clipboard'];
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audio = json['audio'];
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}
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Map<String, dynamic> toJson() {
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final Map<String, dynamic> data = new Map<String, dynamic>();
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data['id'] = this.id;
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data['is_start'] = this.authorized;
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data['is_file_transfer'] = this.isFileTransfer;
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data['name'] = this.name;
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data['peer_id'] = this.peerId;
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data['keyboard'] = this.keyboard;
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data['clipboard'] = this.clipboard;
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data['audio'] = this.audio;
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return data;
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}
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}
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String getLoginDialogTag(int id) {
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return KLoginDialogTag + id.toString();
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}
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showInputWarnAlert(FFI ffi) {
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ffi.dialogManager.show((setState, close) => CustomAlertDialog(
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title: Text(translate("How to get Android input permission?")),
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content: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Text(translate("android_input_permission_tip1")),
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SizedBox(height: 10),
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Text(translate("android_input_permission_tip2")),
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],
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),
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actions: [
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TextButton(child: Text(translate("Cancel")), onPressed: close),
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ElevatedButton(
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child: Text(translate("Open System Setting")),
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onPressed: () {
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ffi.serverModel.initInput();
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close();
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}),
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],
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));
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}
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