protocol 8. (#134)

* protocol 8.

* add FastConnectOptions.

* update.

* fix.

* Deprecated the top connect method.

* Add fast connect button in example.

* Create a Listener before connecting.

* Force protocol-v7 for deprecated APIs.

* remove commented out line.

* relative path import.

* update.

lib/src/core/engine.dart

@@ -64,6 +64,7 @@ class Engine extends Disposable with EventsEmittable<EngineEvent> {
 
   ConnectOptions connectOptions;
   RoomOptions roomOptions;
+  FastConnectOptions? fastConnectOptions;
 
   bool _subscriberPrimary = false;
 
@@ -100,12 +101,14 @@ class Engine extends Disposable with EventsEmittable<EngineEvent> {
     String token, {
     ConnectOptions? connectOptions,
     RoomOptions? roomOptions,
+    FastConnectOptions? fastConnectOptions,
   }) async {
     this.url = url;
     this.token = token;
     // update new options (if exists)
     this.connectOptions = connectOptions ?? this.connectOptions;
     this.roomOptions = roomOptions ?? this.roomOptions;
+    this.fastConnectOptions = fastConnectOptions;
 
     _updateConnectionState(ConnectionState.connecting);
 

lib/src/core/room.dart

@@ -14,6 +14,8 @@ import '../participant/remote.dart';
 import '../proto/livekit_models.pb.dart' as lk_models;
 import '../proto/livekit_rtc.pb.dart' as lk_rtc;
 import '../support/disposable.dart';
+import '../track/local/audio.dart';
+import '../track/local/video.dart';
 import '../track/track.dart';
 import '../types/other.dart';
 import 'engine.dart';
@@ -117,12 +119,14 @@ class Room extends DisposableChangeNotifier with EventsEmittable<RoomEvent> {
     String token, {
     ConnectOptions? connectOptions,
     RoomOptions? roomOptions,
+    FastConnectOptions? fastConnectOptions,
   }) =>
       engine.connect(
         url,
         token,
         connectOptions: connectOptions,
         roomOptions: roomOptions,
+        fastConnectOptions: fastConnectOptions,
       );
 
   void _setUpSignalListeners() => _signalListener
@@ -141,6 +145,32 @@ class Room extends DisposableChangeNotifier with EventsEmittable<RoomEvent> {
         info: event.response.participant,
       );
 
+      if (connectOptions.protocolVersion.index >= ProtocolVersion.v8.index &&
+          engine.fastConnectOptions != null) {
+        var options = engine.fastConnectOptions!;
+
+        var audio = options.microphone;
+        if (audio.enabled != null && audio.enabled == true) {
+          _localParticipant!.setMicrophoneEnabled(true);
+        } else if (audio.track != null) {
+          _localParticipant!.publishAudioTrack(audio.track as LocalAudioTrack);
+        }
+
+        var video = options.camera;
+        if (video.enabled != null && video.enabled == true) {
+          _localParticipant!.setCameraEnabled(true);
+        } else if (video.track != null) {
+          _localParticipant!.publishVideoTrack(video.track as LocalVideoTrack);
+        }
+
+        var screen = options.screen;
+        if (screen.enabled != null && screen.enabled == true) {
+          _localParticipant!.setScreenShareEnabled(true);
+        } else if (screen.track != null) {
+          _localParticipant!.publishVideoTrack(screen.track as LocalVideoTrack);
+        }
+      }
+
       for (final info in event.response.otherParticipants) {
         logger.fine('Creating RemoteParticipant: ${info.sid}(${info.identity}) '
             'tracks:${info.tracks.map((e) => e.sid)}');