✨ Full functional call

android/app/src/main/AndroidManifest.xml

@@ -1,4 +1,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
+    <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
+
     <application
         android:label="solian"
         android:name="${applicationName}"

lib/exts.dart

@@ -14,11 +14,13 @@ extension SolianExtenions on BuildContext {
       if (message.trim().isEmpty) return '';
       return message
           .split(' ')
-          .map((element) => '${element[0].toUpperCase()}${element.substring(1).toLowerCase()}')
+          .map((element) =>
+              '${element[0].toUpperCase()}${element.substring(1).toLowerCase()}')
           .join(' ');
     }
 
     return showDialog<void>(
+      useRootNavigator: true,
       context: this,
       builder: (ctx) => AlertDialog(
         title: Text('errorHappened'.tr),

lib/main.dart

@@ -4,6 +4,7 @@ import 'package:solian/providers/account.dart';
 import 'package:solian/providers/auth.dart';
 import 'package:solian/providers/chat.dart';
 import 'package:solian/providers/content/attachment.dart';
+import 'package:solian/providers/content/call.dart';
 import 'package:solian/providers/content/channel.dart';
 import 'package:solian/providers/content/post.dart';
 import 'package:solian/providers/content/realm.dart';
@@ -41,6 +42,7 @@ class SolianApp extends StatelessWidget {
         Get.lazyPut(() => AccountProvider());
         Get.lazyPut(() => ChannelProvider());
         Get.lazyPut(() => RealmProvider());
+        Get.lazyPut(() => ChatCallProvider());
 
         final AuthProvider auth = Get.find();
         auth.isAuthorized.then((value) async {

lib/models/call.dart

@@ -1,3 +1,4 @@
+import 'package:livekit_client/livekit_client.dart';
 import 'package:solian/models/channel.dart';
 
 class Call {
@@ -48,3 +49,21 @@ class Call {
         'channel': channel.toJson(),
       };
 }
+
+enum ParticipantStatsType {
+  unknown,
+  localAudioSender,
+  localVideoSender,
+  remoteAudioReceiver,
+  remoteVideoReceiver,
+}
+
+class ParticipantTrack {
+  ParticipantTrack(
+      {required this.participant,
+      required this.videoTrack,
+      required this.isScreenShare});
+  VideoTrack? videoTrack;
+  Participant participant;
+  bool isScreenShare;
+}

lib/providers/content/call.dart

@@ -0,0 +1,383 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_background/flutter_background.dart';
+import 'package:get/get.dart';
+import 'package:livekit_client/livekit_client.dart';
+import 'package:permission_handler/permission_handler.dart';
+import 'package:solian/models/call.dart';
+import 'package:solian/models/channel.dart';
+import 'package:solian/providers/auth.dart';
+import 'package:solian/screens/channel/call/call.dart';
+import 'package:solian/services.dart';
+import 'package:wakelock_plus/wakelock_plus.dart';
+
+class ChatCallProvider extends GetxController {
+  Rx<Call?> current = Rx(null);
+  Rx<Channel?> channel = Rx(null);
+
+  RxBool isReady = false.obs;
+  RxBool isMounted = false.obs;
+
+  String? token;
+  String? endpoint;
+
+  StreamSubscription? hwSubscription;
+  RxList audioInputs = [].obs;
+  RxList videoInputs = [].obs;
+
+  RxBool enableAudio = true.obs;
+  RxBool enableVideo = false.obs;
+  Rx<LocalAudioTrack?> audioTrack = Rx(null);
+  Rx<LocalVideoTrack?> videoTrack = Rx(null);
+  Rx<MediaDevice?> videoDevice = Rx(null);
+  Rx<MediaDevice?> audioDevice = Rx(null);
+
+  final VideoParameters videoParameters = VideoParametersPresets.h720_169;
+
+  late Room room;
+  late EventsListener<RoomEvent> listener;
+
+  RxList participantTracks = [].obs;
+  Rx<ParticipantTrack?> focusTrack = Rx(null);
+
+  Future<void> checkPermissions() async {
+    if (lkPlatformIs(PlatformType.macOS) || lkPlatformIs(PlatformType.linux)) {
+      return;
+    }
+    if (lkPlatformIs(PlatformType.android)) {
+      FlutterBackground.enableBackgroundExecution();
+    }
+
+    await Permission.camera.request();
+    await Permission.microphone.request();
+    await Permission.bluetooth.request();
+    await Permission.bluetoothConnect.request();
+  }
+
+  void setCall(Call call, Channel related) {
+    current.value = call;
+    channel.value = related;
+  }
+
+  Future<(String, String)> getRoomToken() async {
+    final AuthProvider auth = Get.find();
+    if (!await auth.isAuthorized) throw Exception('unauthorized');
+
+    final client = GetConnect(maxAuthRetries: 3);
+    client.httpClient.baseUrl = ServiceFinder.services['messaging'];
+    client.httpClient.addAuthenticator(auth.requestAuthenticator);
+
+    final resp = await client.post(
+      '/api/channels/global/${channel.value!.alias}/calls/ongoing/token',
+      {},
+    );
+    if (resp.statusCode == 200) {
+      token = resp.body['token'];
+      endpoint = 'wss://${resp.body['endpoint']}';
+      return (token!, endpoint!);
+    } else {
+      throw Exception(resp.bodyString);
+    }
+  }
+
+  void initHardware() {
+    if (isReady.value) {
+      return;
+    } else {
+      isReady.value = true;
+    }
+
+    hwSubscription = Hardware.instance.onDeviceChange.stream.listen(
+      revertDevices,
+    );
+    Hardware.instance.enumerateDevices().then(revertDevices);
+  }
+
+  void initRoom() {
+    initHardware();
+    room = Room();
+    listener = room.createListener();
+    WakelockPlus.enable();
+  }
+
+  void joinRoom(String url, String token) async {
+    if (isMounted.value) {
+      return;
+    } else {
+      isMounted.value = true;
+    }
+
+    try {
+      await room.connect(
+        url,
+        token,
+        roomOptions: RoomOptions(
+          dynacast: true,
+          adaptiveStream: true,
+          defaultAudioPublishOptions: const AudioPublishOptions(
+            name: 'call_voice',
+            stream: 'call_stream',
+          ),
+          defaultVideoPublishOptions: const VideoPublishOptions(
+            name: 'call_video',
+            stream: 'call_stream',
+            simulcast: true,
+            backupVideoCodec: BackupVideoCodec(enabled: true),
+          ),
+          defaultScreenShareCaptureOptions: const ScreenShareCaptureOptions(
+            useiOSBroadcastExtension: true,
+            params: VideoParameters(
+              dimensions: VideoDimensionsPresets.h1080_169,
+              encoding:
+                  VideoEncoding(maxBitrate: 3 * 1000 * 1000, maxFramerate: 30),
+            ),
+          ),
+          defaultCameraCaptureOptions:
+              CameraCaptureOptions(maxFrameRate: 30, params: videoParameters),
+        ),
+        fastConnectOptions: FastConnectOptions(
+          microphone: TrackOption(track: audioTrack.value),
+          camera: TrackOption(track: videoTrack.value),
+        ),
+      );
+    } catch (e) {
+      rethrow;
+    }
+  }
+
+  void autoPublish() async {
+    try {
+      if (enableVideo.value) {
+        await room.localParticipant?.setCameraEnabled(true);
+      }
+      if (enableAudio.value) {
+        await room.localParticipant?.setMicrophoneEnabled(true);
+      }
+    } catch (error) {
+      rethrow;
+    }
+  }
+
+  void onRoomDidUpdate() => sortParticipants();
+
+  void setupRoom() {
+    sortParticipants();
+    room.addListener(onRoomDidUpdate);
+    WidgetsBindingCompatible.instance?.addPostFrameCallback(
+      (_) => autoPublish(),
+    );
+
+    if (lkPlatformIsMobile()) {
+      Hardware.instance.setSpeakerphoneOn(true);
+    }
+  }
+
+  void setupRoomListeners({
+    required Function(DisconnectReason?) onDisconnected,
+  }) {
+    listener
+      ..on<RoomDisconnectedEvent>((event) async {
+        onDisconnected(event.reason);
+      })
+      ..on<ParticipantEvent>((event) => sortParticipants())
+      ..on<LocalTrackPublishedEvent>((_) => sortParticipants())
+      ..on<LocalTrackUnpublishedEvent>((_) => sortParticipants())
+      ..on<TrackSubscribedEvent>((_) => sortParticipants())
+      ..on<TrackUnsubscribedEvent>((_) => sortParticipants())
+      ..on<ParticipantNameUpdatedEvent>((event) {
+        sortParticipants();
+      });
+  }
+
+  void sortParticipants() {
+    Map<String, ParticipantTrack> mediaTracks = {};
+    for (var participant in room.remoteParticipants.values) {
+      mediaTracks[participant.sid] = ParticipantTrack(
+        participant: participant,
+        videoTrack: null,
+        isScreenShare: false,
+      );
+
+      for (var t in participant.videoTrackPublications) {
+        mediaTracks[participant.sid]?.videoTrack = t.track;
+        mediaTracks[participant.sid]?.isScreenShare = t.isScreenShare;
+      }
+    }
+
+    final newTracks = List.empty(growable: true);
+
+    final mediaTrackList = mediaTracks.values.toList();
+    mediaTrackList.sort((a, b) {
+      // Loudest people first
+      if (a.participant.isSpeaking && b.participant.isSpeaking) {
+        if (a.participant.audioLevel > b.participant.audioLevel) {
+          return -1;
+        } else {
+          return 1;
+        }
+      }
+
+      // Last spoke first
+      final aSpokeAt = a.participant.lastSpokeAt?.millisecondsSinceEpoch ?? 0;
+      final bSpokeAt = b.participant.lastSpokeAt?.millisecondsSinceEpoch ?? 0;
+
+      if (aSpokeAt != bSpokeAt) {
+        return aSpokeAt > bSpokeAt ? -1 : 1;
+      }
+
+      // Has video first
+      if (a.participant.hasVideo != b.participant.hasVideo) {
+        return a.participant.hasVideo ? -1 : 1;
+      }
+
+      // First joined people first
+      return a.participant.joinedAt.millisecondsSinceEpoch -
+          b.participant.joinedAt.millisecondsSinceEpoch;
+    });
+
+    newTracks.addAll(mediaTrackList);
+
+    if (room.localParticipant != null) {
+      ParticipantTrack localTrack = ParticipantTrack(
+        participant: room.localParticipant!,
+        videoTrack: null,
+        isScreenShare: false,
+      );
+
+      final localParticipantTracks =
+          room.localParticipant?.videoTrackPublications;
+      if (localParticipantTracks != null) {
+        for (var t in localParticipantTracks) {
+          localTrack.videoTrack = t.track;
+          localTrack.isScreenShare = t.isScreenShare;
+        }
+      }
+
+      newTracks.add(localTrack);
+    }
+
+    participantTracks.value = newTracks;
+    if (focusTrack.value == null) {
+      focusTrack.value = participantTracks.firstOrNull;
+    } else {
+      final idx = participantTracks.indexWhere(
+        (x) => focusTrack.value!.participant.sid == x.participant.sid,
+      );
+      if (idx > -1) {
+        focusTrack.value = participantTracks[idx];
+      }
+    }
+  }
+
+  void revertDevices(List<MediaDevice> devices) async {
+    audioInputs.clear();
+    audioInputs.addAll(devices.where((d) => d.kind == 'audioinput'));
+    videoInputs.clear();
+    videoInputs.addAll(devices.where((d) => d.kind == 'videoinput'));
+
+    if (audioInputs.isNotEmpty) {
+      if (audioDevice.value == null && enableAudio.value) {
+        audioDevice.value = audioInputs.first;
+        Future.delayed(const Duration(milliseconds: 100), () async {
+          await changeLocalAudioTrack();
+        });
+      }
+    }
+
+    if (videoInputs.isNotEmpty) {
+      if (videoDevice.value == null && enableVideo.value) {
+        videoDevice.value = videoInputs.first;
+        Future.delayed(const Duration(milliseconds: 100), () async {
+          await changeLocalVideoTrack();
+        });
+      }
+    }
+  }
+
+  Future<void> setEnableVideo(value) async {
+    enableVideo.value = value;
+    if (!enableVideo.value) {
+      await videoTrack.value?.stop();
+      videoTrack.value = null;
+    } else {
+      await changeLocalVideoTrack();
+    }
+  }
+
+  Future<void> setEnableAudio(value) async {
+    enableAudio.value = value;
+    if (!enableAudio.value) {
+      await audioTrack.value?.stop();
+      audioTrack.value = null;
+    } else {
+      await changeLocalAudioTrack();
+    }
+  }
+
+  Future<void> changeLocalAudioTrack() async {
+    if (audioTrack.value != null) {
+      await audioTrack.value!.stop();
+      audioTrack.value = null;
+    }
+
+    if (audioDevice.value != null) {
+      audioTrack.value = await LocalAudioTrack.create(
+        AudioCaptureOptions(
+          deviceId: audioDevice.value!.deviceId,
+        ),
+      );
+      await audioTrack.value!.start();
+    }
+  }
+
+  Future<void> changeLocalVideoTrack() async {
+    if (videoTrack.value != null) {
+      await videoTrack.value!.stop();
+      videoTrack.value = null;
+    }
+
+    if (videoDevice.value != null) {
+      videoTrack.value = await LocalVideoTrack.createCameraTrack(
+        CameraCaptureOptions(
+          deviceId: videoDevice.value!.deviceId,
+          params: videoParameters,
+        ),
+      );
+      await videoTrack.value!.start();
+    }
+  }
+
+  void changeFocusTrack(ParticipantTrack track) {
+    focusTrack.value = track;
+  }
+
+  Future gotoScreen(BuildContext context) {
+    return Navigator.of(context, rootNavigator: true).push(
+      MaterialPageRoute(builder: (context) => const CallScreen()),
+    );
+  }
+
+  void deactivateHardware() {
+    hwSubscription?.cancel();
+  }
+
+  void disposeRoom() {
+    isMounted.value = false;
+    current.value = null;
+    channel.value = null;
+    room.removeListener(onRoomDidUpdate);
+    room.disconnect();
+    room.dispose();
+    listener.dispose();
+    WakelockPlus.disable();
+  }
+
+  void disposeHardware() {
+    isReady.value = false;
+    audioTrack.value?.stop();
+    audioTrack.value = null;
+    videoTrack.value?.stop();
+    videoTrack.value = null;
+  }
+}

lib/screens/channel/call/call.dart

@@ -0,0 +1,101 @@
+import 'dart:math' as math;
+
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:solian/providers/content/call.dart';
+import 'package:solian/widgets/chat/call/call_controls.dart';
+import 'package:solian/widgets/chat/call/call_participant.dart';
+
+class CallScreen extends StatefulWidget {
+  const CallScreen({super.key});
+
+  @override
+  State<CallScreen> createState() => _CallScreenState();
+}
+
+class _CallScreenState extends State<CallScreen> {
+  @override
+  void initState() {
+    Get.find<ChatCallProvider>().setupRoom();
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final ChatCallProvider provider = Get.find();
+
+    return Material(
+      color: Theme.of(context).colorScheme.surface,
+      child: SafeArea(
+        top: false,
+        child: Obx(
+          () => Stack(
+            children: [
+              Column(
+                children: [
+                  Expanded(
+                    child: Container(
+                      color: Theme.of(context).colorScheme.surfaceContainer,
+                      child: provider.focusTrack.value != null
+                          ? InteractiveParticipantWidget(
+                              isFixed: false,
+                              participant: provider.focusTrack.value!,
+                              onTap: () {},
+                            )
+                          : const SizedBox(),
+                    ),
+                  ),
+                  if (provider.room.localParticipant != null)
+                    ControlsWidget(
+                      provider.room,
+                      provider.room.localParticipant!,
+                    ),
+                ],
+              ),
+              Positioned(
+                left: 0,
+                right: 0,
+                top: 0,
+                child: SizedBox(
+                  height: 128,
+                  child: ListView.builder(
+                    scrollDirection: Axis.horizontal,
+                    itemCount: math.max(0, provider.participantTracks.length),
+                    itemBuilder: (BuildContext context, int index) {
+                      final track = provider.participantTracks[index];
+                      if (track.participant.sid ==
+                          provider.focusTrack.value?.participant.sid) {
+                        return Container();
+                      }
+
+                      return Padding(
+                        padding: const EdgeInsets.only(top: 8, left: 8),
+                        child: ClipRRect(
+                          borderRadius:
+                              const BorderRadius.all(Radius.circular(8)),
+                          child: InteractiveParticipantWidget(
+                            isFixed: true,
+                            width: 120,
+                            height: 120,
+                            color: Theme.of(context).cardColor,
+                            participant: track,
+                            onTap: () {
+                              if (track.participant.sid !=
+                                  provider.focusTrack.value?.participant.sid) {
+                                provider.changeFocusTrack(track);
+                              }
+                            },
+                          ),
+                        ),
+                      );
+                    },
+                  ),
+                ),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/screens/channel/channel_chat.dart

@@ -11,10 +11,12 @@ import 'package:solian/models/packet.dart';
 import 'package:solian/models/pagination.dart';
 import 'package:solian/providers/auth.dart';
 import 'package:solian/providers/chat.dart';
+import 'package:solian/providers/content/call.dart';
 import 'package:solian/providers/content/channel.dart';
 import 'package:solian/router.dart';
 import 'package:solian/services.dart';
 import 'package:solian/theme.dart';
+import 'package:solian/widgets/chat/call/call_prejoin.dart';
 import 'package:solian/widgets/chat/call/chat_call_action.dart';
 import 'package:solian/widgets/chat/chat_message.dart';
 import 'package:solian/widgets/chat/chat_message_action.dart';
@@ -177,6 +179,17 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
     return a.createdAt.difference(b.createdAt).inMinutes <= 3;
   }
 
+  void showCallPrejoin() {
+    showModalBottomSheet(
+      useRootNavigator: true,
+      context: context,
+      builder: (context) => ChatCallPrejoinPopup(
+        ongoingCall: _ongoingCall!,
+        channel: _channel!,
+      ),
+    );
+  }
+
   Message? _messageToReplying;
   Message? _messageToEditing;
 
@@ -238,7 +251,7 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
 
   @override
   Widget build(BuildContext context) {
-    if (_isBusy) {
+    if (_isBusy || _channel == null) {
       return const Center(
         child: CircularProgressIndicator(),
       );
@@ -257,6 +270,8 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
       );
     }
 
+    final ChatCallProvider call = Get.find();
+
     return Scaffold(
       appBar: AppBar(
         title: Text(title),
@@ -335,19 +350,38 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
             ),
           ),
           if (_ongoingCall != null)
-            MaterialBanner(
+            Positioned(
-              padding: const EdgeInsets.only(left: 10, right: 20),
+              top: 0,
+              left: 0,
+              right: 0,
+              child: MaterialBanner(
+                padding: const EdgeInsets.only(left: 16, top: 4, bottom: 4),
                 leading: const Icon(Icons.call_received),
                 backgroundColor: Theme.of(context).colorScheme.surfaceContainer,
-              dividerColor: const Color.fromARGB(1, 0, 0, 0),
+                dividerColor: Colors.transparent,
                 content: Text('callOngoing'.tr),
                 actions: [
-                TextButton(
+                  Obx(() {
+                    if (call.current.value == null) {
+                      return TextButton(
+                        onPressed: showCallPrejoin,
                         child: Text('callJoin'.tr),
-                  onPressed: () {},
+                      );
-                ),
+                    } else if (call.channel.value?.id == _channel?.id) {
+                      return TextButton(
+                        onPressed: () => call.gotoScreen(context),
+                        child: Text('callResume'.tr),
+                      );
+                    } else {
+                      return TextButton(
+                        onPressed: null,
+                        child: Text('callJoin'.tr),
+                      );
+                    }
+                  })
                 ],
               ),
+            ),
         ],
       ),
     );

lib/screens/contact.dart

@@ -4,12 +4,14 @@ import 'package:font_awesome_flutter/font_awesome_flutter.dart';
 import 'package:get/get.dart';
 import 'package:solian/models/channel.dart';
 import 'package:solian/providers/auth.dart';
+import 'package:solian/providers/content/call.dart';
 import 'package:solian/providers/content/channel.dart';
 import 'package:solian/router.dart';
 import 'package:solian/screens/account/notification.dart';
 import 'package:solian/theme.dart';
 import 'package:solian/widgets/account/signin_required_overlay.dart';
 import 'package:solian/widgets/channel/channel_list.dart';
+import 'package:solian/widgets/chat/call/chat_call_indicator.dart';
 
 class ContactScreen extends StatefulWidget {
   const ContactScreen({super.key});
@@ -57,6 +59,7 @@ class _ContactScreenState extends State<ContactScreen> {
   @override
   Widget build(BuildContext context) {
     final AuthProvider auth = Get.find();
+    final ChatCallProvider call = Get.find();
 
     return Material(
       color: Theme.of(context).colorScheme.surface,
@@ -133,6 +136,15 @@ class _ContactScreenState extends State<ContactScreen> {
                     ),
                   ],
                 ),
+                Obx(() {
+                  if (call.current.value != null) {
+                    return const SliverToBoxAdapter(
+                      child: ChatCallCurrentIndicator(),
+                    );
+                  } else {
+                    return const SizedBox();
+                  }
+                }),
                 if (_isBusy)
                   SliverToBoxAdapter(
                     child: const LinearProgressIndicator().animate().scaleX(),

lib/translations.dart

@@ -155,6 +155,13 @@ class SolianMessages extends Translations {
               'Are your sure to delete message @id? This action cannot be undone!',
           'callOngoing': 'A call is ongoing...',
           'callJoin': 'Join',
+          'callMicrophone': 'Microphone',
+          'callMicrophoneDisabled': 'Microphone Disabled',
+          'callMicrophoneSelect': 'Select Microphone',
+          'callCamera': 'Camera',
+          'callCameraDisabled': 'Camera Disabled',
+          'callCameraSelect': 'Select Camera',
+          'callDisconnected': 'Call has been disconnected... @reason',
         },
         'zh_CN': {
           'hide': '隐藏',
@@ -298,6 +305,31 @@ class SolianMessages extends Translations {
           'messageDeletionConfirmCaption': '你确定要删除消息 @id 吗？该操作不可撤销。',
           'callOngoing': '一则通话正在进行中…',
           'callJoin': '加入',
+          'callResume': '恢复',
+          'callMicrophone': '麦克风',
+          'callMicrophoneDisabled': '麦克风禁用',
+          'callMicrophoneSelect': '选择麦克风',
+          'callCamera': '摄像头',
+          'callCameraDisabled': '摄像头禁用',
+          'callCameraSelect': '选择摄像头',
+          'callSpeakerSelect': '选择扬声器',
+          'callDisconnected': '通话已断开… @reason',
+          'callMicrophoneOn': '开启麦克风',
+          'callMicrophoneOff': '关闭麦克风',
+          'callCameraOn': '开启摄像头',
+          'callCameraOff': '关闭摄像头',
+          'callVideoFlip': '翻转视频输入',
+          'callSpeakerphoneToggle': '切换扬声器模式',
+          'callScreenOn': '启动屏幕分享',
+          'callScreenOff': '关闭屏幕分享',
+          'callDisconnect': '断开连接',
+          'callDisconnectCaption': '你确定要断开与该则通话的连接吗？你也可以直接返回页面，通话将在后台继续。',
+          'callParticipantAction': '通话参与者的操作',
+          'callParticipantMicrophoneOff': '静音参与者',
+          'callParticipantMicrophoneOn': '解除静音参与者',
+          'callParticipantVideoOff': '静音参与者',
+          'callParticipantVideoOn': '解除静音参与者',
+          'callAlreadyOngoing': '当前正在进行一则通话',
         }
       };
 }

lib/widgets/chat/call/call_controls.dart

@@ -0,0 +1,399 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_background/flutter_background.dart';
+import 'package:flutter_webrtc/flutter_webrtc.dart';
+import 'package:get/get.dart';
+import 'package:livekit_client/livekit_client.dart';
+import 'package:solian/exts.dart';
+import 'package:solian/providers/content/call.dart';
+
+class ControlsWidget extends StatefulWidget {
+  final Room room;
+  final LocalParticipant participant;
+
+  const ControlsWidget(
+    this.room,
+    this.participant, {
+    super.key,
+  });
+
+  @override
+  State<StatefulWidget> createState() => _ControlsWidgetState();
+}
+
+class _ControlsWidgetState extends State<ControlsWidget> {
+  CameraPosition position = CameraPosition.front;
+
+  List<MediaDevice>? _audioInputs;
+  List<MediaDevice>? _audioOutputs;
+  List<MediaDevice>? _videoInputs;
+
+  StreamSubscription? _subscription;
+
+  bool _speakerphoneOn = false;
+
+  @override
+  void initState() {
+    super.initState();
+    participant.addListener(onChange);
+    _subscription = Hardware.instance.onDeviceChange.stream
+        .listen((List<MediaDevice> devices) {
+      revertDevices(devices);
+    });
+    Hardware.instance.enumerateDevices().then(revertDevices);
+    _speakerphoneOn = Hardware.instance.speakerOn ?? false;
+  }
+
+  @override
+  void dispose() {
+    _subscription?.cancel();
+    participant.removeListener(onChange);
+    super.dispose();
+  }
+
+  LocalParticipant get participant => widget.participant;
+
+  void revertDevices(List<MediaDevice> devices) async {
+    _audioInputs = devices.where((d) => d.kind == 'audioinput').toList();
+    _audioOutputs = devices.where((d) => d.kind == 'audiooutput').toList();
+    _videoInputs = devices.where((d) => d.kind == 'videoinput').toList();
+    setState(() {});
+  }
+
+  void onChange() => setState(() {});
+
+  bool get isMuted => participant.isMuted;
+
+  Future<bool?> showDisconnectDialog() {
+    return showDialog<bool>(
+      context: context,
+      builder: (ctx) => AlertDialog(
+        title: Text('callDisconnect'.tr),
+        content: Text('callDisconnectCaption'.tr),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(ctx, false),
+            child: Text('cancel'.tr),
+          ),
+          TextButton(
+            onPressed: () => Navigator.pop(ctx, true),
+            child: Text('confirm'.tr),
+          ),
+        ],
+      ),
+    );
+  }
+
+  void disconnect() async {
+    if (await showDisconnectDialog() != true) return;
+
+    final ChatCallProvider provider = Get.find();
+    if (provider.current.value != null) {
+      provider.disposeRoom();
+      Navigator.pop(context);
+    }
+  }
+
+  void disableAudio() async {
+    await participant.setMicrophoneEnabled(false);
+  }
+
+  void enableAudio() async {
+    await participant.setMicrophoneEnabled(true);
+  }
+
+  void disableVideo() async {
+    await participant.setCameraEnabled(false);
+  }
+
+  void enableVideo() async {
+    await participant.setCameraEnabled(true);
+  }
+
+  void selectAudioOutput(MediaDevice device) async {
+    await widget.room.setAudioOutputDevice(device);
+    setState(() {});
+  }
+
+  void selectAudioInput(MediaDevice device) async {
+    await widget.room.setAudioInputDevice(device);
+    setState(() {});
+  }
+
+  void selectVideoInput(MediaDevice device) async {
+    await widget.room.setVideoInputDevice(device);
+    setState(() {});
+  }
+
+  void setSpeakerphoneOn() {
+    _speakerphoneOn = !_speakerphoneOn;
+    Hardware.instance.setSpeakerphoneOn(_speakerphoneOn);
+    setState(() {});
+  }
+
+  void toggleCamera() async {
+    final track = participant.videoTrackPublications.firstOrNull?.track;
+    if (track == null) return;
+
+    try {
+      final newPosition = position.switched();
+      await track.setCameraPosition(newPosition);
+      setState(() {
+        position = newPosition;
+      });
+    } catch (error) {
+      return;
+    }
+  }
+
+  void enableScreenShare() async {
+    if (lkPlatformIsDesktop()) {
+      try {
+        final source = await showDialog<DesktopCapturerSource>(
+          context: context,
+          builder: (context) => ScreenSelectDialog(),
+        );
+        if (source == null) {
+          return;
+        }
+        var track = await LocalVideoTrack.createScreenShareTrack(
+          ScreenShareCaptureOptions(
+            sourceId: source.id,
+            maxFrameRate: 15.0,
+          ),
+        );
+        await participant.publishVideoTrack(track);
+      } catch (e) {
+        final message = e.toString();
+        context.showErrorDialog(message);
+      }
+      return;
+    }
+    if (lkPlatformIs(PlatformType.android)) {
+      requestBackgroundPermission([bool isRetry = false]) async {
+        try {
+          bool hasPermissions = await FlutterBackground.hasPermissions;
+          if (!isRetry) {
+            const androidConfig = FlutterBackgroundAndroidConfig(
+              notificationTitle: 'Screen Sharing',
+              notificationText: 'Solar Messager is sharing your screen',
+              notificationImportance: AndroidNotificationImportance.Default,
+              notificationIcon:
+                  AndroidResource(name: 'launcher_icon', defType: 'mipmap'),
+            );
+            hasPermissions = await FlutterBackground.initialize(
+                androidConfig: androidConfig);
+          }
+          if (hasPermissions &&
+              !FlutterBackground.isBackgroundExecutionEnabled) {
+            await FlutterBackground.enableBackgroundExecution();
+          }
+        } catch (e) {
+          if (!isRetry) {
+            return await Future<void>.delayed(const Duration(seconds: 1),
+                () => requestBackgroundPermission(true));
+          }
+        }
+      }
+
+      await requestBackgroundPermission();
+    }
+    if (lkPlatformIs(PlatformType.iOS)) {
+      var track = await LocalVideoTrack.createScreenShareTrack(
+        const ScreenShareCaptureOptions(
+          useiOSBroadcastExtension: true,
+          maxFrameRate: 30.0,
+        ),
+      );
+      await participant.publishVideoTrack(track);
+      return;
+    }
+
+    if (lkPlatformIsWebMobile()) {
+      ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
+        content: Text('Screen share is not supported mobile platform.'),
+      ));
+      return;
+    }
+
+    await participant.setScreenShareEnabled(true, captureScreenAudio: true);
+  }
+
+  void disableScreenShare() async {
+    await participant.setScreenShareEnabled(false);
+    if (lkPlatformIs(PlatformType.android)) {
+      // Android specific
+      try {
+        await FlutterBackground.disableBackgroundExecution();
+      } catch (_) {}
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.symmetric(
+        vertical: 10,
+      ),
+      child: Wrap(
+        alignment: WrapAlignment.center,
+        spacing: 5,
+        runSpacing: 5,
+        children: [
+          IconButton(
+            icon: Transform.flip(
+                flipX: true, child: const Icon(Icons.exit_to_app)),
+            color: Theme.of(context).colorScheme.onSurface,
+            onPressed: disconnect,
+          ),
+          if (participant.isMicrophoneEnabled())
+            if (lkPlatformIs(PlatformType.android))
+              IconButton(
+                onPressed: disableAudio,
+                icon: const Icon(Icons.mic),
+                color: Theme.of(context).colorScheme.onSurface,
+                tooltip: 'callMicrophoneOff'.tr,
+              )
+            else
+              PopupMenuButton<MediaDevice>(
+                icon: const Icon(Icons.settings_voice),
+                itemBuilder: (BuildContext context) {
+                  return [
+                    PopupMenuItem<MediaDevice>(
+                      value: null,
+                      onTap: isMuted ? enableAudio : disableAudio,
+                      child: ListTile(
+                        leading: const Icon(Icons.mic_off),
+                        title: Text('callMicrophoneOn'.tr),
+                      ),
+                    ),
+                    if (_audioInputs != null)
+                      ..._audioInputs!.map((device) {
+                        return PopupMenuItem<MediaDevice>(
+                          value: device,
+                          child: ListTile(
+                            leading: (device.deviceId ==
+                                    widget.room.selectedAudioInputDeviceId)
+                                ? const Icon(Icons.check_box_outlined)
+                                : const Icon(Icons.check_box_outline_blank),
+                            title: Text(device.label),
+                          ),
+                          onTap: () => selectAudioInput(device),
+                        );
+                      })
+                  ];
+                },
+              )
+          else
+            IconButton(
+              onPressed: enableAudio,
+              icon: const Icon(Icons.mic_off),
+              color: Theme.of(context).colorScheme.onSurface,
+              tooltip: 'callMicrophoneOn'.tr,
+            ),
+          if (participant.isCameraEnabled())
+            PopupMenuButton<MediaDevice>(
+              icon: const Icon(Icons.videocam_sharp),
+              itemBuilder: (BuildContext context) {
+                return [
+                  PopupMenuItem<MediaDevice>(
+                    value: null,
+                    onTap: disableVideo,
+                    child: ListTile(
+                      leading: const Icon(Icons.videocam_off),
+                      title: Text('callCameraOff'.tr),
+                    ),
+                  ),
+                  if (_videoInputs != null)
+                    ..._videoInputs!.map((device) {
+                      return PopupMenuItem<MediaDevice>(
+                        value: device,
+                        child: ListTile(
+                          leading: (device.deviceId ==
+                                  widget.room.selectedVideoInputDeviceId)
+                              ? const Icon(Icons.check_box_outlined)
+                              : const Icon(Icons.check_box_outline_blank),
+                          title: Text(device.label),
+                        ),
+                        onTap: () => selectVideoInput(device),
+                      );
+                    })
+                ];
+              },
+            )
+          else
+            IconButton(
+              onPressed: enableVideo,
+              icon: const Icon(Icons.videocam_off),
+              color: Theme.of(context).colorScheme.onSurface,
+              tooltip: 'callCameraOn'.tr,
+            ),
+          IconButton(
+            icon: Icon(position == CameraPosition.back
+                ? Icons.video_camera_back
+                : Icons.video_camera_front),
+            color: Theme.of(context).colorScheme.onSurface,
+            onPressed: () => toggleCamera(),
+            tooltip: 'callVideoFlip'.tr,
+          ),
+          if (!lkPlatformIs(PlatformType.iOS))
+            PopupMenuButton<MediaDevice>(
+              icon: const Icon(Icons.volume_up),
+              itemBuilder: (BuildContext context) {
+                return [
+                  PopupMenuItem<MediaDevice>(
+                    value: null,
+                    child: ListTile(
+                      leading: const Icon(Icons.speaker),
+                      title: Text('callSpeakerSelect'.tr),
+                    ),
+                  ),
+                  if (_audioOutputs != null)
+                    ..._audioOutputs!.map((device) {
+                      return PopupMenuItem<MediaDevice>(
+                        value: device,
+                        child: ListTile(
+                          leading: (device.deviceId ==
+                                  widget.room.selectedAudioOutputDeviceId)
+                              ? const Icon(Icons.check_box_outlined)
+                              : const Icon(Icons.check_box_outline_blank),
+                          title: Text(device.label),
+                        ),
+                        onTap: () => selectAudioOutput(device),
+                      );
+                    })
+                ];
+              },
+            ),
+          if (!kIsWeb && lkPlatformIs(PlatformType.iOS))
+            IconButton(
+              onPressed: Hardware.instance.canSwitchSpeakerphone
+                  ? setSpeakerphoneOn
+                  : null,
+              color: Theme.of(context).colorScheme.onSurface,
+              icon: Icon(
+                _speakerphoneOn ? Icons.volume_up : Icons.volume_down,
+              ),
+              tooltip: 'callSpeakerphoneToggle'.tr,
+            ),
+          if (participant.isScreenShareEnabled())
+            IconButton(
+              icon: const Icon(Icons.monitor_outlined),
+              color: Theme.of(context).colorScheme.onSurface,
+              onPressed: () => disableScreenShare(),
+              tooltip: 'callScreenOff'.tr,
+            )
+          else
+            IconButton(
+              icon: const Icon(Icons.monitor),
+              color: Theme.of(context).colorScheme.onSurface,
+              onPressed: () => enableScreenShare(),
+              tooltip: 'callScreenOn'.tr,
+            ),
+        ],
+      ),
+    );
+  }
+}

lib/widgets/chat/call/call_no_content.dart

@@ -0,0 +1,92 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_animate/flutter_animate.dart';
+import 'package:solian/models/account.dart';
+import 'package:solian/widgets/account/account_avatar.dart';
+import 'dart:math' as math;
+
+class NoContentWidget extends StatefulWidget {
+  final Account? userinfo;
+  final bool isSpeaking;
+  final bool isFixed;
+
+  const NoContentWidget({
+    super.key,
+    this.userinfo,
+    this.isFixed = false,
+    required this.isSpeaking,
+  });
+
+  @override
+  State<NoContentWidget> createState() => _NoContentWidgetState();
+}
+
+class _NoContentWidgetState extends State<NoContentWidget>
+    with SingleTickerProviderStateMixin {
+  late final AnimationController _animationController;
+
+  @override
+  void initState() {
+    super.initState();
+    _animationController = AnimationController(vsync: this);
+  }
+
+  @override
+  void didUpdateWidget(NoContentWidget old) {
+    super.didUpdateWidget(old);
+    if (widget.isSpeaking) {
+      _animationController.repeat(reverse: true);
+    } else {
+      _animationController
+          .animateTo(0, duration: 300.ms)
+          .then((_) => _animationController.reset());
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final double radius = widget.isFixed
+        ? 32
+        : math.min(
+            MediaQuery.of(context).size.width * 0.1,
+            MediaQuery.of(context).size.height * 0.1,
+          );
+
+    return Container(
+      alignment: Alignment.center,
+      child: Center(
+        child: Animate(
+          autoPlay: false,
+          controller: _animationController,
+          effects: [
+            CustomEffect(
+              begin: widget.isSpeaking ? 2 : 0,
+              end: 8,
+              curve: Curves.easeInOut,
+              duration: 1250.ms,
+              builder: (context, value, child) => Container(
+                decoration: BoxDecoration(
+                  borderRadius: BorderRadius.all(Radius.circular(radius + 8)),
+                  border: value > 0
+                      ? Border.all(color: Colors.green, width: value)
+                      : null,
+                ),
+                child: child,
+              ),
+            )
+          ],
+          child: AccountAvatar(
+            content: widget.userinfo!.avatar,
+            bgColor: Colors.transparent,
+            radius: radius,
+          ),
+        ),
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    _animationController.dispose();
+    super.dispose();
+  }
+}

lib/widgets/chat/call/call_participant.dart

@@ -0,0 +1,244 @@
+import 'dart:convert';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_webrtc/flutter_webrtc.dart';
+import 'package:livekit_client/livekit_client.dart';
+import 'package:solian/models/account.dart';
+import 'package:solian/models/call.dart';
+import 'package:solian/widgets/chat/call/call_no_content.dart';
+import 'package:solian/widgets/chat/call/call_participant_info.dart';
+import 'package:solian/widgets/chat/call/call_participant_menu.dart';
+import 'package:solian/widgets/chat/call/call_participant_stats.dart';
+
+abstract class ParticipantWidget extends StatefulWidget {
+  static ParticipantWidget widgetFor(ParticipantTrack participantTrack,
+      {bool isFixed = false, bool showStatsLayer = false}) {
+    if (participantTrack.participant is LocalParticipant) {
+      return LocalParticipantWidget(
+        participantTrack.participant as LocalParticipant,
+        participantTrack.videoTrack,
+        isFixed,
+        participantTrack.isScreenShare,
+        showStatsLayer,
+      );
+    } else if (participantTrack.participant is RemoteParticipant) {
+      return RemoteParticipantWidget(
+        participantTrack.participant as RemoteParticipant,
+        participantTrack.videoTrack,
+        isFixed,
+        participantTrack.isScreenShare,
+        showStatsLayer,
+      );
+    }
+    throw UnimplementedError('Unknown participant type');
+  }
+
+  abstract final Participant participant;
+  abstract final VideoTrack? videoTrack;
+  abstract final bool isScreenShare;
+  abstract final bool isFixed;
+  abstract final bool showStatsLayer;
+  final VideoQuality quality;
+
+  const ParticipantWidget({
+    super.key,
+    this.quality = VideoQuality.MEDIUM,
+  });
+}
+
+class LocalParticipantWidget extends ParticipantWidget {
+  @override
+  final LocalParticipant participant;
+  @override
+  final VideoTrack? videoTrack;
+  @override
+  final bool isFixed;
+  @override
+  final bool isScreenShare;
+  @override
+  final bool showStatsLayer;
+
+  const LocalParticipantWidget(
+    this.participant,
+    this.videoTrack,
+    this.isFixed,
+    this.isScreenShare,
+    this.showStatsLayer, {
+    super.key,
+  });
+
+  @override
+  State<StatefulWidget> createState() => _LocalParticipantWidgetState();
+}
+
+class RemoteParticipantWidget extends ParticipantWidget {
+  @override
+  final RemoteParticipant participant;
+  @override
+  final VideoTrack? videoTrack;
+  @override
+  final bool isFixed;
+  @override
+  final bool isScreenShare;
+  @override
+  final bool showStatsLayer;
+
+  const RemoteParticipantWidget(
+    this.participant,
+    this.videoTrack,
+    this.isFixed,
+    this.isScreenShare,
+    this.showStatsLayer, {
+    super.key,
+  });
+
+  @override
+  State<StatefulWidget> createState() => _RemoteParticipantWidgetState();
+}
+
+abstract class _ParticipantWidgetState<T extends ParticipantWidget>
+    extends State<T> {
+  VideoTrack? get _activeVideoTrack;
+
+  TrackPublication? get _firstAudioPublication;
+
+  Account? _userinfoMetadata;
+
+  @override
+  void initState() {
+    super.initState();
+    widget.participant.addListener(onParticipantChanged);
+    onParticipantChanged();
+  }
+
+  @override
+  void dispose() {
+    widget.participant.removeListener(onParticipantChanged);
+    super.dispose();
+  }
+
+  @override
+  void didUpdateWidget(covariant T oldWidget) {
+    oldWidget.participant.removeListener(onParticipantChanged);
+    widget.participant.addListener(onParticipantChanged);
+    onParticipantChanged();
+    super.didUpdateWidget(oldWidget);
+  }
+
+  void onParticipantChanged() {
+    setState(() {
+      if (widget.participant.metadata != null) {
+        _userinfoMetadata =
+            Account.fromJson(jsonDecode(widget.participant.metadata!));
+      }
+    });
+  }
+
+  @override
+  Widget build(BuildContext ctx) {
+    return Stack(
+      children: [
+        _activeVideoTrack != null && !_activeVideoTrack!.muted
+            ? VideoTrackRenderer(
+                _activeVideoTrack!,
+                fit: RTCVideoViewObjectFit.RTCVideoViewObjectFitContain,
+              )
+            : NoContentWidget(
+                userinfo: _userinfoMetadata,
+                isFixed: widget.isFixed,
+                isSpeaking: widget.participant.isSpeaking,
+              ),
+        if (widget.showStatsLayer)
+          Positioned(
+            top: 30,
+            right: 30,
+            child: ParticipantStatsWidget(participant: widget.participant),
+          ),
+        Align(
+          alignment: Alignment.bottomCenter,
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.stretch,
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              ParticipantInfoWidget(
+                title: widget.participant.name.isNotEmpty
+                    ? widget.participant.name
+                    : widget.participant.identity,
+                audioAvailable: _firstAudioPublication?.muted == false &&
+                    _firstAudioPublication?.subscribed == true,
+                connectionQuality: widget.participant.connectionQuality,
+                isScreenShare: widget.isScreenShare,
+              ),
+            ],
+          ),
+        ),
+      ],
+    );
+  }
+}
+
+class _LocalParticipantWidgetState
+    extends _ParticipantWidgetState<LocalParticipantWidget> {
+  @override
+  LocalTrackPublication<LocalAudioTrack>? get _firstAudioPublication =>
+      widget.participant.audioTrackPublications.firstOrNull;
+
+  @override
+  VideoTrack? get _activeVideoTrack => widget.videoTrack;
+}
+
+class _RemoteParticipantWidgetState
+    extends _ParticipantWidgetState<RemoteParticipantWidget> {
+  @override
+  RemoteTrackPublication<RemoteAudioTrack>? get _firstAudioPublication =>
+      widget.participant.audioTrackPublications.firstOrNull;
+
+  @override
+  VideoTrack? get _activeVideoTrack => widget.videoTrack;
+}
+
+class InteractiveParticipantWidget extends StatelessWidget {
+  final double? width;
+  final double? height;
+  final Color? color;
+  final bool isFixed;
+  final ParticipantTrack participant;
+  final Function() onTap;
+
+  const InteractiveParticipantWidget({
+    super.key,
+    this.width,
+    this.height,
+    this.color,
+    this.isFixed = false,
+    required this.participant,
+    required this.onTap,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Material(
+      color: Colors.transparent,
+      child: InkWell(
+        child: Container(
+          width: width,
+          height: height,
+          color: color,
+          child: ParticipantWidget.widgetFor(participant, isFixed: isFixed),
+        ),
+        onTap: () => onTap(),
+        onLongPress: () {
+          if (participant.participant is LocalParticipant) return;
+          showModalBottomSheet(
+            context: context,
+            builder: (context) => ParticipantMenu(
+              participant: participant.participant as RemoteParticipant,
+              videoTrack: participant.videoTrack,
+              isScreenShare: participant.isScreenShare,
+            ),
+          );
+        },
+      ),
+    );
+  }
+}

lib/widgets/chat/call/call_participant_info.dart

@@ -0,0 +1,72 @@
+import 'package:flutter/material.dart';
+import 'package:livekit_client/livekit_client.dart';
+
+class ParticipantInfoWidget extends StatelessWidget {
+  final String? title;
+  final bool audioAvailable;
+  final ConnectionQuality connectionQuality;
+  final bool isScreenShare;
+
+  const ParticipantInfoWidget({
+    super.key,
+    this.title,
+    this.audioAvailable = true,
+    this.connectionQuality = ConnectionQuality.unknown,
+    this.isScreenShare = false,
+  });
+
+  @override
+  Widget build(BuildContext context) => Container(
+        color: Theme.of(context).colorScheme.onSurface.withOpacity(0.75),
+        padding: const EdgeInsets.symmetric(
+          vertical: 7,
+          horizontal: 10,
+        ),
+        child: Row(
+          mainAxisAlignment: MainAxisAlignment.end,
+          crossAxisAlignment: CrossAxisAlignment.center,
+          children: [
+            if (title != null)
+              Flexible(
+                child: Text(
+                  title!,
+                  overflow: TextOverflow.ellipsis,
+                  style: const TextStyle(color: Colors.white),
+                ),
+              ),
+            isScreenShare
+                ? const Padding(
+                    padding: EdgeInsets.only(left: 5),
+                    child: Icon(
+                      Icons.monitor,
+                      color: Colors.white,
+                      size: 16,
+                    ),
+                  )
+                : Padding(
+                    padding: const EdgeInsets.only(left: 5),
+                    child: Icon(
+                      audioAvailable ? Icons.mic : Icons.mic_off,
+                      color: audioAvailable ? Colors.white : Colors.red,
+                      size: 16,
+                    ),
+                  ),
+            if (connectionQuality != ConnectionQuality.unknown)
+              Padding(
+                padding: const EdgeInsets.only(left: 5),
+                child: Icon(
+                  connectionQuality == ConnectionQuality.poor
+                      ? Icons.wifi_off_outlined
+                      : Icons.wifi,
+                  color: {
+                    ConnectionQuality.excellent: Colors.green,
+                    ConnectionQuality.good: Colors.orange,
+                    ConnectionQuality.poor: Colors.red,
+                  }[connectionQuality],
+                  size: 16,
+                ),
+              ),
+          ],
+        ),
+      );
+}

lib/widgets/chat/call/call_participant_menu.dart

@@ -0,0 +1,160 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:livekit_client/livekit_client.dart';
+
+class ParticipantMenu extends StatefulWidget {
+  final RemoteParticipant participant;
+  final VideoTrack? videoTrack;
+  final bool isScreenShare;
+  final bool showStatsLayer;
+
+  const ParticipantMenu({
+    super.key,
+    required this.participant,
+    this.videoTrack,
+    this.isScreenShare = false,
+    this.showStatsLayer = false,
+  });
+
+  @override
+  State<ParticipantMenu> createState() => _ParticipantMenuState();
+}
+
+class _ParticipantMenuState extends State<ParticipantMenu> {
+  RemoteTrackPublication<RemoteVideoTrack>? get _videoPublication =>
+      widget.participant.videoTrackPublications
+          .where((element) => element.sid == widget.videoTrack?.sid)
+          .firstOrNull;
+
+  RemoteTrackPublication<RemoteAudioTrack>? get _firstAudioPublication =>
+      widget.participant.audioTrackPublications.firstOrNull;
+
+  void tookAction() {
+    if (Navigator.canPop(context)) {
+      Navigator.pop(context);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Container(
+          padding:
+              const EdgeInsets.only(left: 8, right: 8, top: 20, bottom: 12),
+          child: Padding(
+            padding: const EdgeInsets.symmetric(
+              horizontal: 8,
+              vertical: 12,
+            ),
+            child: Text(
+              'callParticipantAction'.tr,
+              style: Theme.of(context).textTheme.headlineSmall,
+            ),
+          ),
+        ),
+        Expanded(
+          child: ListView(
+            children: [
+              if (_firstAudioPublication != null && !widget.isScreenShare)
+                ListTile(
+                  leading: Icon(
+                    Icons.volume_up,
+                    color: {
+                      TrackSubscriptionState.notAllowed:
+                          Theme.of(context).colorScheme.error,
+                      TrackSubscriptionState.unsubscribed: Theme.of(context)
+                          .colorScheme
+                          .onSurface
+                          .withOpacity(0.6),
+                      TrackSubscriptionState.subscribed:
+                          Theme.of(context).colorScheme.primary,
+                    }[_firstAudioPublication!.subscriptionState],
+                  ),
+                  title: Text(
+                    _firstAudioPublication!.subscribed
+                        ? 'callParticipantMicrophoneOff'.tr
+                        : 'callParticipantMicrophoneOn'.tr,
+                  ),
+                  onTap: () {
+                    if (_firstAudioPublication!.subscribed) {
+                      _firstAudioPublication!.unsubscribe();
+                    } else {
+                      _firstAudioPublication!.subscribe();
+                    }
+                    tookAction();
+                  },
+                ),
+              if (_videoPublication != null)
+                ListTile(
+                  leading: Icon(
+                    widget.isScreenShare ? Icons.monitor : Icons.videocam,
+                    color: {
+                      TrackSubscriptionState.notAllowed:
+                          Theme.of(context).colorScheme.error,
+                      TrackSubscriptionState.unsubscribed: Theme.of(context)
+                          .colorScheme
+                          .onSurface
+                          .withOpacity(0.6),
+                      TrackSubscriptionState.subscribed:
+                          Theme.of(context).colorScheme.primary,
+                    }[_videoPublication!.subscriptionState],
+                  ),
+                  title: Text(
+                    _videoPublication!.subscribed
+                        ? 'callParticipantVideoOff'.tr
+                        : 'callParticipantVideoOn'.tr,
+                  ),
+                  onTap: () {
+                    if (_videoPublication!.subscribed) {
+                      _videoPublication!.unsubscribe();
+                    } else {
+                      _videoPublication!.subscribe();
+                    }
+                    tookAction();
+                  },
+                ),
+              if (_videoPublication != null) const Divider(thickness: 0.3),
+              if (_videoPublication != null)
+                ...[30, 15, 8].map(
+                  (x) => ListTile(
+                    leading: Icon(
+                      _videoPublication?.fps == x
+                          ? Icons.check_box_outlined
+                          : Icons.check_box_outline_blank,
+                    ),
+                    title: Text('Set preferred frame-per-second to $x'),
+                    onTap: () {
+                      _videoPublication!.setVideoFPS(x);
+                      tookAction();
+                    },
+                  ),
+                ),
+              if (_videoPublication != null) const Divider(thickness: 0.3),
+              if (_videoPublication != null)
+                ...[
+                  ('High', VideoQuality.HIGH),
+                  ('Medium', VideoQuality.MEDIUM),
+                  ('Low', VideoQuality.LOW),
+                ].map(
+                  (x) => ListTile(
+                    leading: Icon(
+                      _videoPublication?.videoQuality == x.$2
+                          ? Icons.check_box_outlined
+                          : Icons.check_box_outline_blank,
+                    ),
+                    title: Text('Set preferred quality to ${x.$1}'),
+                    onTap: () {
+                      _videoPublication!.setVideoQuality(x.$2);
+                      tookAction();
+                    },
+                  ),
+                ),
+            ],
+          ),
+        ),
+      ],
+    );
+  }
+}

lib/widgets/chat/call/call_participant_stats.dart

@@ -0,0 +1,133 @@
+import 'package:flutter/material.dart';
+import 'package:livekit_client/livekit_client.dart';
+import 'package:solian/models/call.dart';
+
+class ParticipantStatsWidget extends StatefulWidget {
+  const ParticipantStatsWidget({super.key, required this.participant});
+
+  final Participant participant;
+
+  @override
+  State<StatefulWidget> createState() => _ParticipantStatsWidgetState();
+}
+
+class _ParticipantStatsWidgetState extends State<ParticipantStatsWidget> {
+  List<EventsListener<TrackEvent>> listeners = [];
+  ParticipantStatsType statsType = ParticipantStatsType.unknown;
+  Map<String, String> stats = {};
+
+  void _setUpListener(Track track) {
+    var listener = track.createListener();
+    listeners.add(listener);
+    if (track is LocalVideoTrack) {
+      statsType = ParticipantStatsType.localVideoSender;
+      listener.on<VideoSenderStatsEvent>((event) {
+        setState(() {
+          stats['video tx'] = 'total sent ${event.currentBitrate.toInt()} kpbs';
+          event.stats.forEach((key, value) {
+            stats['layer-$key'] =
+                '${value.frameWidth ?? 0}x${value.frameHeight ?? 0} ${value.framesPerSecond?.toDouble() ?? 0} fps, ${event.bitrateForLayers[key] ?? 0} kbps';
+          });
+          var firstStats =
+              event.stats['f'] ?? event.stats['h'] ?? event.stats['q'];
+          if (firstStats != null) {
+            stats['encoder'] = firstStats.encoderImplementation ?? '';
+            stats['video codec'] =
+                '${firstStats.mimeType}, ${firstStats.clockRate}hz, pt: ${firstStats.payloadType}';
+            stats['qualityLimitationReason'] =
+                firstStats.qualityLimitationReason ?? '';
+          }
+        });
+      });
+    } else if (track is RemoteVideoTrack) {
+      statsType = ParticipantStatsType.remoteVideoReceiver;
+      listener.on<VideoReceiverStatsEvent>((event) {
+        setState(() {
+          stats['video rx'] = '${event.currentBitrate.toInt()} kpbs';
+          stats['video codec'] =
+              '${event.stats.mimeType}, ${event.stats.clockRate}hz, pt: ${event.stats.payloadType}';
+          stats['video size'] =
+              '${event.stats.frameWidth}x${event.stats.frameHeight} ${event.stats.framesPerSecond?.toDouble()}fps';
+          stats['video jitter'] = '${event.stats.jitter} s';
+          stats['video decoder'] = '${event.stats.decoderImplementation}';
+          stats['video packets lost'] = '${event.stats.packetsLost}';
+          stats['video packets received'] = '${event.stats.packetsReceived}';
+          stats['video frames received'] = '${event.stats.framesReceived}';
+          stats['video frames decoded'] = '${event.stats.framesDecoded}';
+          stats['video frames dropped'] = '${event.stats.framesDropped}';
+        });
+      });
+    } else if (track is LocalAudioTrack) {
+      statsType = ParticipantStatsType.localAudioSender;
+      listener.on<AudioSenderStatsEvent>((event) {
+        setState(() {
+          stats['audio tx'] = '${event.currentBitrate.toInt()} kpbs';
+          stats['audio codec'] =
+              '${event.stats.mimeType}, ${event.stats.clockRate}hz, ${event.stats.channels}ch, pt: ${event.stats.payloadType}';
+        });
+      });
+    } else if (track is RemoteAudioTrack) {
+      statsType = ParticipantStatsType.remoteAudioReceiver;
+      listener.on<AudioReceiverStatsEvent>((event) {
+        setState(() {
+          stats['audio rx'] = '${event.currentBitrate.toInt()} kpbs';
+          stats['audio codec'] =
+              '${event.stats.mimeType}, ${event.stats.clockRate}hz, ${event.stats.channels}ch, pt: ${event.stats.payloadType}';
+          stats['audio jitter'] = '${event.stats.jitter} s';
+          stats['audio concealed samples'] =
+              '${event.stats.concealedSamples} / ${event.stats.concealmentEvents}';
+          stats['audio packets lost'] = '${event.stats.packetsLost}';
+          stats['audio packets received'] = '${event.stats.packetsReceived}';
+        });
+      });
+    }
+  }
+
+  onParticipantChanged() {
+    for (var element in listeners) {
+      element.dispose();
+    }
+    listeners.clear();
+    for (var track in [
+      ...widget.participant.videoTrackPublications,
+      ...widget.participant.audioTrackPublications
+    ]) {
+      if (track.track != null) {
+        _setUpListener(track.track!);
+      }
+    }
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    widget.participant.addListener(onParticipantChanged);
+    onParticipantChanged();
+  }
+
+  @override
+  void deactivate() {
+    for (var element in listeners) {
+      element.dispose();
+    }
+    widget.participant.removeListener(onParticipantChanged);
+    super.deactivate();
+  }
+
+  num sendBitrate = 0;
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      color: Theme.of(context).colorScheme.onSurface.withOpacity(0.75),
+      padding: const EdgeInsets.symmetric(
+        vertical: 8,
+        horizontal: 8,
+      ),
+      child: Column(
+        children:
+            stats.entries.map((e) => Text('${e.key}: ${e.value}')).toList(),
+      ),
+    );
+  }
+}

lib/widgets/chat/call/call_prejoin.dart

@@ -0,0 +1,189 @@
+import 'package:dropdown_button2/dropdown_button2.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:livekit_client/livekit_client.dart';
+import 'package:solian/exts.dart';
+import 'package:solian/models/call.dart';
+import 'package:solian/models/channel.dart';
+import 'package:solian/providers/auth.dart';
+import 'package:solian/providers/content/call.dart';
+
+class ChatCallPrejoinPopup extends StatefulWidget {
+  final Call ongoingCall;
+  final Channel channel;
+
+  const ChatCallPrejoinPopup({
+    super.key,
+    required this.ongoingCall,
+    required this.channel,
+  });
+
+  @override
+  State<ChatCallPrejoinPopup> createState() => _ChatCallPrejoinPopupState();
+}
+
+class _ChatCallPrejoinPopupState extends State<ChatCallPrejoinPopup> {
+  bool _isBusy = false;
+
+  void performJoin() async {
+    final AuthProvider auth = Get.find();
+    final ChatCallProvider provider = Get.find();
+    if (!await auth.isAuthorized) return;
+
+    setState(() => _isBusy = true);
+
+    provider.setCall(widget.ongoingCall, widget.channel);
+
+    try {
+      final resp = await provider.getRoomToken();
+      final token = resp.$1;
+      final endpoint = resp.$2;
+
+      provider.initRoom();
+      provider.setupRoomListeners(
+        onDisconnected: (reason) {
+          context.showSnackbar(
+            'callDisconnected'.trParams({'reason': reason.toString()}),
+          );
+        },
+      );
+
+      provider.joinRoom(endpoint, token);
+
+      provider.gotoScreen(context).then((_) {
+        Navigator.pop(context);
+      });
+    } catch (e) {
+      context.showErrorDialog(e);
+    }
+
+    setState(() => _isBusy = false);
+  }
+
+  @override
+  void initState() {
+    final ChatCallProvider provider = Get.find();
+    provider.checkPermissions().then((_) {
+      provider.initHardware();
+    });
+
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final ChatCallProvider provider = Get.find();
+
+    return Obx(
+      () => Center(
+        child: Container(
+          constraints: const BoxConstraints(maxWidth: 320),
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Row(
+                mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                children: [
+                  Text('callMicrophone'.tr),
+                  Switch(
+                    value: provider.enableAudio.value,
+                    onChanged: null,
+                  ),
+                ],
+              ).paddingOnly(bottom: 5),
+              DropdownButtonHideUnderline(
+                child: DropdownButton2<MediaDevice>(
+                  isExpanded: true,
+                  disabledHint: Text('callMicrophoneDisabled'.tr),
+                  hint: Text('callMicrophoneSelect'.tr),
+                  items: provider.enableAudio.value
+                      ? provider.audioInputs
+                          .map(
+                            (item) => DropdownMenuItem<MediaDevice>(
+                              value: item,
+                              child: Text(item.label),
+                            ),
+                          )
+                          .toList()
+                          .cast<DropdownMenuItem<MediaDevice>>()
+                      : [],
+                  value: provider.audioDevice.value,
+                  onChanged: (MediaDevice? value) async {
+                    if (value != null) {
+                      provider.audioDevice.value = value;
+                      await provider.changeLocalAudioTrack();
+                    }
+                  },
+                  buttonStyleData: const ButtonStyleData(
+                    height: 40,
+                    width: 320,
+                  ),
+                ),
+              ).paddingOnly(bottom: 25),
+              Row(
+                mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                children: [
+                  Text('callCamera'.tr),
+                  Switch(
+                    value: provider.enableVideo.value,
+                    onChanged: (value) => provider.enableVideo.value = value,
+                  ),
+                ],
+              ).paddingOnly(bottom: 5),
+              DropdownButtonHideUnderline(
+                child: DropdownButton2<MediaDevice>(
+                  isExpanded: true,
+                  disabledHint: Text('callCameraDisabled'.tr),
+                  hint: Text('callCameraSelect'.tr),
+                  items: provider.enableVideo.value
+                      ? provider.videoInputs
+                          .map(
+                            (item) => DropdownMenuItem<MediaDevice>(
+                              value: item,
+                              child: Text(item.label),
+                            ),
+                          )
+                          .toList()
+                          .cast<DropdownMenuItem<MediaDevice>>()
+                      : [],
+                  value: provider.videoDevice.value,
+                  onChanged: (MediaDevice? value) async {
+                    if (value != null) {
+                      provider.videoDevice.value = value;
+                      await provider.changeLocalVideoTrack();
+                    }
+                  },
+                  buttonStyleData: const ButtonStyleData(
+                    height: 40,
+                    width: 320,
+                  ),
+                ),
+              ).paddingOnly(bottom: 25),
+              if (_isBusy)
+                const Center(child: CircularProgressIndicator())
+              else
+                ElevatedButton(
+                  style: ElevatedButton.styleFrom(
+                    minimumSize: const Size(320, 56),
+                    backgroundColor:
+                        Theme.of(context).colorScheme.primaryContainer,
+                  ),
+                  onPressed: _isBusy ? null : performJoin,
+                  child: Text('callJoin'.tr),
+                ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    Get.find<ChatCallProvider>()
+      ..deactivateHardware()
+      ..disposeHardware();
+    super.dispose();
+  }
+}

lib/widgets/chat/call/chat_call_indicator.dart

@@ -0,0 +1,27 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:solian/providers/content/call.dart';
+
+class ChatCallCurrentIndicator extends StatelessWidget {
+  const ChatCallCurrentIndicator({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final ChatCallProvider provider = Get.find();
+
+    if (provider.current.value == null || provider.channel.value == null) {
+      return const SizedBox();
+    }
+
+    return ListTile(
+      tileColor: Theme.of(context).colorScheme.surfaceContainerHigh,
+      contentPadding: const EdgeInsets.symmetric(horizontal: 32),
+      leading: const Icon(Icons.call),
+      title: Text(provider.channel.value!.name),
+      subtitle: Text('callAlreadyOngoing'.tr),
+      onTap: () {
+        provider.gotoScreen(context);
+      },
+    );
+  }
+}

pubspec.lock

@@ -5,10 +5,10 @@ packages:
     dependency: transitive
     description:
       name: archive
-      sha256: "6bd38d335f0954f5fad9c79e614604fbf03a0e5b975923dd001b6ea965ef5b4b"
+      sha256: cb6a278ef2dbb298455e1a713bda08524a175630ec643a242c399c932a0a1f7d
       url: "https://pub.dev"
     source: hosted
-    version: "3.6.0"
+    version: "3.6.1"
   args:
     dependency: transitive
     description:
@@ -254,6 +254,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.5.0"
+  flutter_background:
+    dependency: "direct main"
+    description:
+      name: flutter_background
+      sha256: "035c31a738509d67ee70bbf174e5aa7db462c371e838ec8259700c5c4e7ca17f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.0"
   flutter_lints:
     dependency: "direct dev"
     description:
@@ -468,10 +476,10 @@ packages:
     dependency: transitive
     description:
       name: image_picker_ios
-      sha256: "4824d8c7f6f89121ef0122ff79bb00b009607faecc8545b86bca9ab5ce1e95bf"
+      sha256: "6703696ad49f5c3c8356d576d7ace84d1faf459afb07accbb0fae780753ff447"
       url: "https://pub.dev"
     source: hosted
-    version: "0.8.11+2"
+    version: "0.8.12"
   image_picker_linux:
     dependency: transitive
     description:
@@ -1062,7 +1070,7 @@ packages:
     source: hosted
     version: "14.2.1"
   wakelock_plus:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: wakelock_plus
       sha256: "14758533319a462ffb5aa3b7ddb198e59b29ac3b02da14173a1715d65d4e6e68"

pubspec.yaml

@@ -62,6 +62,8 @@ dependencies:
   chewie: ^1.8.1
   livekit_client: ^2.1.5
   flutter_webrtc: ^0.10.7
+  wakelock_plus: ^1.2.5
+  flutter_background: ^1.2.0
 
 dev_dependencies:
   flutter_test: