✨ Floating call widgets

lib/i18n/app_en.arb

@@ -78,6 +78,7 @@
   "chatChannelDeleteConfirm": "Are you sure you want to delete this channel? All messages in this channel will be gone forever. This operation cannot be revert!",
   "chatCall": "Call",
   "chatCallOngoing": "A call is ongoing",
+  "chatCallOngoingShort": "Ongoing",
   "chatCallJoin": "Join",
   "chatCallMute": "Mute",
   "chatCallUnMute": "Un-mute",
@@ -86,6 +87,8 @@
   "chatCallVideoFlip": "Flip Camera",
   "chatCallScreenOn": "Start Screen Share",
   "chatCallScreenOff": "Stop Screen Share",
+  "chatCallDisconnect": "Disconnect",
+  "chatCallDisconnectConfirm": "Are you sure you want to disconnect? You can reconnect after this if you want.",
   "chatCallChangeSpeaker": "Change Speaker",
   "chatMessagePlaceholder": "Write a message...",
   "chatMessageEditNotify": "You are about editing a message.",

lib/i18n/app_zh.arb

@@ -86,7 +86,10 @@
   "chatCallScreenOff": "停止屏幕分享",
   "chatCallChangeSpeaker": "切换扬声器",
   "chatCallOngoing": "一则通话正在进行中",
+  "chatCallOngoingShort": "进行中",
   "chatCallJoin": "加入",
+  "chatCallDisconnect": "断开连接",
+  "chatCallDisconnectConfirm": "你确定你要断开连接吗？你可以之后在任何时候重新连接。",
   "chatMessagePlaceholder": "发条消息……",
   "chatMessageEditNotify": "你正在编辑信息中……",
   "chatMessageReplyNotify": "你正在回复消息中……",

lib/main.dart

@@ -9,6 +9,7 @@ import 'package:solian/router.dart';
 import 'package:solian/utils/timeago.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 import 'package:solian/utils/video_player.dart';
+import 'package:solian/widgets/chat/call/call_overlay.dart';
 import 'package:solian/widgets/notification_notifier.dart';
 
 void main() {
@@ -36,21 +37,22 @@ class SolianApp extends StatelessWidget {
       supportedLocales: AppLocalizations.supportedLocales,
       routerConfig: router,
       builder: (context, child) {
-        return Overlay(
-          initialEntries: [
-            OverlayEntry(builder: (context) {
         return MultiProvider(
           providers: [
             Provider(create: (_) => NavigationProvider()),
-                  Provider(create: (_) => AuthProvider()),
+            ChangeNotifierProvider(create: (_) => AuthProvider()),
-                  Provider(create: (_) => ChatProvider()),
+            ChangeNotifierProvider(create: (_) => ChatProvider()),
             ChangeNotifierProvider(create: (_) => NotifyProvider()),
             ChangeNotifierProvider(create: (_) => FriendProvider()),
           ],
-                child: NotificationNotifier(child: child ?? Container()),
+          child: Overlay(
-              );
+            initialEntries: [
-            })
+              OverlayEntry(builder: (context) {
+                return NotificationNotifier(child: child ?? Container());
+              }),
+              OverlayEntry(builder: (context) => const CallOverlay()),
             ],
+          ),
         );
       },
     );

lib/providers/auth.dart

@@ -5,7 +5,7 @@ import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:oauth2/oauth2.dart' as oauth2;
 import 'package:solian/utils/service_url.dart';
 
-class AuthProvider {
+class AuthProvider extends ChangeNotifier {
   AuthProvider();
 
   final deviceEndpoint = getRequestUri('passport', '/api/notifications/subscribe');
@@ -63,6 +63,7 @@ class AuthProvider {
       var userinfo = await client!.get(userinfoEndpoint);
       storage.write(key: profileKey, value: utf8.decode(userinfo.bodyBytes));
     }
+    notifyListeners();
   }
 
   Future<void> refreshToken() async {
@@ -72,6 +73,7 @@ class AuthProvider {
       client = oauth2.Client(credentials, identifier: clientId, secret: clientSecret);
       storage.write(key: storageKey, value: credentials.toJson());
     }
+    notifyListeners();
   }
 
   Future<void> signin(BuildContext context, String username, String password) async {

lib/providers/chat.dart

@@ -1,11 +1,25 @@
 import 'dart:async';
+import 'dart:convert';
 
+import 'package:flutter/material.dart';
+import 'package:livekit_client/livekit_client.dart';
+import 'package:permission_handler/permission_handler.dart';
+import 'package:provider/provider.dart';
+import 'package:solian/models/call.dart';
+import 'package:solian/models/channel.dart';
 import 'package:solian/providers/auth.dart';
 import 'package:solian/utils/service_url.dart';
+import 'package:solian/widgets/chat/call/exts.dart';
+import 'package:solian/widgets/exts.dart';
+import 'package:wakelock_plus/wakelock_plus.dart';
 import 'package:web_socket_channel/web_socket_channel.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 
-class ChatProvider {
+class ChatProvider extends ChangeNotifier {
   bool isOpened = false;
+  bool isShown = false;
+
+  ChatCallInstance? call;
 
   Future<WebSocketChannel?> connect(AuthProvider auth) async {
     if (auth.client == null) await auth.pickClient();
@@ -26,4 +40,388 @@ class ChatProvider {
 
     return channel;
   }
+
+  bool handleCall(Call call, Channel channel, {Function? onUpdate, Function? onDispose}) {
+    if (this.call != null) return false;
+
+    this.call = ChatCallInstance(
+      onUpdate: () {
+        notifyListeners();
+        if (onUpdate != null) onUpdate();
+      },
+      onDispose: () {
+        this.call = null;
+        notifyListeners();
+        if (onDispose != null) onDispose();
+      },
+      channel: channel,
+      info: call,
+    );
+
+    return true;
+  }
+
+  void setShown(bool state) {
+    isShown = state;
+    notifyListeners();
+  }
+}
+
+class ChatCallInstance {
+  final Function onUpdate;
+  final Function onDispose;
+
+  final Call info;
+  final Channel channel;
+
+  bool isMounted = false;
+
+  String? token;
+  String? endpoint;
+
+  StreamSubscription? subscription;
+  List<MediaDevice> audioInputs = [];
+  List<MediaDevice> videoInputs = [];
+
+  bool enableAudio = true;
+  bool enableVideo = false;
+  LocalAudioTrack? audioTrack;
+  LocalVideoTrack? videoTrack;
+  MediaDevice? videoDevice;
+  MediaDevice? audioDevice;
+
+  final VideoParameters videoParameters = VideoParametersPresets.h720_169;
+
+  late Room room;
+  late EventsListener<RoomEvent> listener;
+
+  List<ParticipantTrack> participantTracks = [];
+  ParticipantTrack? focusTrack;
+
+  ChatCallInstance({
+    required this.onUpdate,
+    required this.onDispose,
+    required this.channel,
+    required this.info,
+  });
+
+  void init() {
+    subscription = Hardware.instance.onDeviceChange.stream.listen(revertDevices);
+    room = Room();
+    listener = room.createListener();
+    Hardware.instance.enumerateDevices().then(revertDevices);
+    WakelockPlus.enable();
+  }
+
+  Future<void> checkPermissions() async {
+    if (lkPlatformIs(PlatformType.macOS) || lkPlatformIs(PlatformType.linux)) return;
+
+    await Permission.camera.request();
+    await Permission.microphone.request();
+    await Permission.bluetooth.request();
+    await Permission.bluetoothConnect.request();
+  }
+
+  Future<(String, String)> exchangeToken(BuildContext context) async {
+    await checkPermissions();
+
+    final auth = context.read<AuthProvider>();
+    if (!await auth.isAuthorized()) {
+      onDispose();
+      throw Exception("unauthorized");
+    }
+
+    var uri = getRequestUri('messaging', '/api/channels/${channel.alias}/calls/ongoing/token');
+
+    var res = await auth.client!.post(uri);
+    if (res.statusCode == 200) {
+      final result = jsonDecode(utf8.decode(res.bodyBytes));
+      token = result['token'];
+      endpoint = 'wss://${result['endpoint']}';
+      joinRoom(context, endpoint!, token!);
+      return (token!, endpoint!);
+    } else {
+      var message = utf8.decode(res.bodyBytes);
+      context.showErrorDialog(message);
+      throw Exception(message);
+    }
+  }
+
+  void joinRoom(BuildContext context, String url, String token) async {
+    if (isMounted) {
+      return;
+    } else {
+      isMounted = true;
+    }
+
+    ScaffoldMessenger.of(context).clearSnackBars();
+
+    final notify = ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(
+        content: Text(AppLocalizations.of(context)!.connectingServer),
+        duration: const Duration(minutes: 1),
+      ),
+    );
+
+    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: 'callvideo',
+            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),
+          camera: TrackOption(track: videoTrack),
+        ),
+      );
+
+      setupRoom(context);
+    } catch (e) {
+      context.showErrorDialog(e);
+    } finally {
+      notify.close();
+    }
+  }
+
+  void autoPublish(BuildContext context) async {
+    try {
+      if (enableVideo) await room.localParticipant?.setCameraEnabled(true);
+    } catch (error) {
+      await context.showErrorDialog(error);
+    }
+    try {
+      if (enableAudio) await room.localParticipant?.setMicrophoneEnabled(true);
+    } catch (error) {
+      await context.showErrorDialog(error);
+    }
+  }
+
+  void setupRoom(BuildContext context) {
+    room.addListener(onRoomDidUpdate);
+    setupRoomListeners(context);
+    sortParticipants();
+    WidgetsBindingCompatible.instance?.addPostFrameCallback((_) => autoPublish(context));
+
+    if (lkPlatformIsMobile()) {
+      Hardware.instance.setSpeakerphoneOn(true);
+    }
+  }
+
+  void setupRoomListeners(BuildContext context) {
+    listener
+      ..on<RoomDisconnectedEvent>((event) async {
+        if (event.reason != null) {
+          ScaffoldMessenger.of(context).showSnackBar(SnackBar(
+            content: Text('Call disconnected... ${event.reason}'),
+          ));
+        }
+        onDispose();
+      })
+      ..on<ParticipantEvent>((event) => sortParticipants())
+      ..on<LocalTrackPublishedEvent>((_) => sortParticipants())
+      ..on<LocalTrackUnpublishedEvent>((_) => sortParticipants())
+      ..on<TrackSubscribedEvent>((_) => sortParticipants())
+      ..on<TrackUnsubscribedEvent>((_) => sortParticipants())
+      ..on<ParticipantNameUpdatedEvent>((event) {
+        sortParticipants();
+      })
+      ..on<AudioPlaybackStatusChanged>((event) async {
+        if (!room.canPlaybackAudio) {
+          bool? yesno = await context.showPlayAudioManuallyDialog();
+          if (yesno == true) {
+            await room.startAudio();
+          }
+        }
+      });
+  }
+
+  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 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;
+    });
+
+    ParticipantTrack localTrack = ParticipantTrack(
+      participant: room.localParticipant!,
+      videoTrack: null,
+      isScreenShare: false,
+    );
+    if (room.localParticipant != null) {
+      final localParticipantTracks = room.localParticipant?.videoTrackPublications;
+      if (localParticipantTracks != null) {
+        for (var t in localParticipantTracks) {
+          localTrack.videoTrack = t.track;
+          localTrack.isScreenShare = t.isScreenShare;
+        }
+      }
+    }
+
+    participantTracks = [localTrack, ...mediaTrackList];
+    if (focusTrack == null) {
+      focusTrack = participantTracks.first;
+    } else {
+      final idx = participantTracks.indexWhere((x) => focusTrack!.participant.sid == x.participant.sid);
+      focusTrack = participantTracks[idx];
+    }
+
+    onUpdate();
+  }
+
+  void revertDevices(List<MediaDevice> devices) async {
+    audioInputs = devices.where((d) => d.kind == 'audioinput').toList();
+    videoInputs = devices.where((d) => d.kind == 'videoinput').toList();
+
+    if (audioInputs.isNotEmpty) {
+      if (audioDevice == null && enableAudio) {
+        audioDevice = audioInputs.first;
+        Future.delayed(const Duration(milliseconds: 100), () async {
+          await changeLocalAudioTrack();
+          onUpdate();
+        });
+      }
+    }
+
+    if (videoInputs.isNotEmpty) {
+      if (videoDevice == null && enableVideo) {
+        videoDevice = videoInputs.first;
+        Future.delayed(const Duration(milliseconds: 100), () async {
+          await changeLocalVideoTrack();
+          onUpdate();
+        });
+      }
+    }
+
+    onUpdate();
+  }
+
+  Future<void> setEnableVideo(value) async {
+    enableVideo = value;
+    if (!enableVideo) {
+      await videoTrack?.stop();
+      videoTrack = null;
+    } else {
+      await changeLocalVideoTrack();
+    }
+    onUpdate();
+  }
+
+  Future<void> setEnableAudio(value) async {
+    enableAudio = value;
+    if (!enableAudio) {
+      await audioTrack?.stop();
+      audioTrack = null;
+    } else {
+      await changeLocalAudioTrack();
+    }
+
+    onUpdate();
+  }
+
+  Future<void> changeLocalAudioTrack() async {
+    if (audioTrack != null) {
+      await audioTrack!.stop();
+      audioTrack = null;
+    }
+
+    if (audioDevice != null) {
+      audioTrack = await LocalAudioTrack.create(AudioCaptureOptions(
+        deviceId: audioDevice!.deviceId,
+      ));
+      await audioTrack!.start();
+    }
+  }
+
+  Future<void> changeLocalVideoTrack() async {
+    if (videoTrack != null) {
+      await videoTrack!.stop();
+      videoTrack = null;
+    }
+
+    if (videoDevice != null) {
+      videoTrack = await LocalVideoTrack.createCameraTrack(CameraCaptureOptions(
+        deviceId: videoDevice!.deviceId,
+        params: videoParameters,
+      ));
+      await videoTrack!.start();
+    }
+  }
+
+  void changeFocusTrack(ParticipantTrack track) {
+    focusTrack = track;
+    onUpdate();
+  }
+
+  void onRoomDidUpdate() => sortParticipants();
+
+  void deactivate() {
+    subscription?.cancel();
+  }
+
+  void dispose() {
+    room.removeListener(onRoomDidUpdate);
+    (() async {
+      await listener.dispose();
+      await room.disconnect();
+      await room.dispose();
+    })();
+    WakelockPlus.disable();
+    onDispose();
+  }
 }

lib/screens/chat/call.dart

@@ -1,22 +1,13 @@
-import 'dart:async';
-import 'dart:convert';
-
 import 'package:flutter/material.dart';
 import 'package:livekit_client/livekit_client.dart';
 import 'package:provider/provider.dart';
 import 'package:solian/models/call.dart';
-import 'package:solian/providers/auth.dart';
+import 'package:solian/providers/chat.dart';
-import 'package:solian/router.dart';
-import 'package:solian/utils/service_url.dart';
 import 'package:solian/widgets/chat/call/controls.dart';
-import 'package:solian/widgets/chat/call/exts.dart';
 import 'package:solian/widgets/chat/call/participant.dart';
 import 'package:solian/widgets/chat/call/participant_menu.dart';
-import 'package:solian/widgets/exts.dart';
 import 'package:solian/widgets/indent_wrapper.dart';
-import 'package:permission_handler/permission_handler.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
-import 'package:wakelock_plus/wakelock_plus.dart';
 import 'dart:math' as math;
 
 class ChatCall extends StatefulWidget {
@@ -29,337 +20,39 @@ class ChatCall extends StatefulWidget {
 }
 
 class _ChatCallState extends State<ChatCall> {
-  String? _token;
+  bool _isHandled = false;
-  String? _endpoint;
 
-  bool _isMounted = false;
+  late ChatProvider _chat;
 
-  StreamSubscription? _subscription;
+  ChatCallInstance get _call => _chat.call!;
-  List<MediaDevice> _audioInputs = [];
-  List<MediaDevice> _videoInputs = [];
-
-  bool _enableAudio = true;
-  bool _enableVideo = false;
-  LocalAudioTrack? _audioTrack;
-  LocalVideoTrack? _videoTrack;
-  MediaDevice? _videoDevice;
-  MediaDevice? _audioDevice;
-
-  final VideoParameters _videoParameters = VideoParametersPresets.h720_169;
-
-  late Room _callRoom;
-  late EventsListener<RoomEvent> _callListener;
-
-  List<ParticipantTrack> _participantTracks = [];
-  ParticipantTrack? _focusParticipant;
-
-  Future<void> checkPermissions() async {
-    if (lkPlatformIs(PlatformType.macOS) || lkPlatformIs(PlatformType.linux)) return;
-
-    await Permission.camera.request();
-    await Permission.microphone.request();
-    await Permission.bluetooth.request();
-    await Permission.bluetoothConnect.request();
-  }
-
-  Future<(String, String)> exchangeToken() async {
-    await checkPermissions();
-
-    final auth = context.read<AuthProvider>();
-    if (!await auth.isAuthorized()) {
-      router.pop();
-      throw Error();
-    }
-
-    var uri = getRequestUri('messaging', '/api/channels/${widget.call.channel.alias}/calls/ongoing/token');
-
-    var res = await auth.client!.post(uri);
-    if (res.statusCode == 200) {
-      final result = jsonDecode(utf8.decode(res.bodyBytes));
-      _token = result['token'];
-      _endpoint = 'wss://${result['endpoint']}';
-      joinRoom(_endpoint!, _token!);
-      return (_token!, _endpoint!);
-    } else {
-      var message = utf8.decode(res.bodyBytes);
-      context.showErrorDialog(message);
-      throw Exception(message);
-    }
-  }
-
-  void joinRoom(String url, String token) async {
-    if (_isMounted) {
-      return;
-    } else {
-      _isMounted = true;
-    }
-
-    ScaffoldMessenger.of(context).clearSnackBars();
-
-    final notify = ScaffoldMessenger.of(context).showSnackBar(
-      SnackBar(
-        content: Text(AppLocalizations.of(context)!.connectingServer),
-        duration: const Duration(minutes: 1),
-      ),
-    );
-
-    try {
-      await _callRoom.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),
-          camera: TrackOption(track: _videoTrack),
-        ),
-      );
-
-      setupRoom();
-    } catch (e) {
-      context.showErrorDialog(e);
-    } finally {
-      notify.close();
-    }
-  }
-
-  void autoPublish() async {
-    try {
-      if (_enableVideo) await _callRoom.localParticipant?.setCameraEnabled(true);
-    } catch (error) {
-      await context.showErrorDialog(error);
-    }
-    try {
-      if (_enableAudio) await _callRoom.localParticipant?.setMicrophoneEnabled(true);
-    } catch (error) {
-      await context.showErrorDialog(error);
-    }
-  }
-
-  void setupRoom() {
-    _callRoom.addListener(onRoomDidUpdate);
-    setupRoomListeners();
-    sortParticipants();
-    WidgetsBindingCompatible.instance?.addPostFrameCallback((_) => autoPublish());
-
-    if (lkPlatformIsMobile()) {
-      Hardware.instance.setSpeakerphoneOn(true);
-    }
-  }
-
-  void setupRoomListeners() {
-    _callListener
-      ..on<RoomDisconnectedEvent>((event) async {
-        if (event.reason != null) {
-          ScaffoldMessenger.of(context).showSnackBar(SnackBar(
-            content: Text('Call disconnected... ${event.reason}'),
-          ));
-        }
-        if (router.canPop()) router.pop();
-      })
-      ..on<ParticipantEvent>((event) => sortParticipants())
-      ..on<LocalTrackPublishedEvent>((_) => sortParticipants())
-      ..on<LocalTrackUnpublishedEvent>((_) => sortParticipants())
-      ..on<TrackSubscribedEvent>((_) => sortParticipants())
-      ..on<TrackUnsubscribedEvent>((_) => sortParticipants())
-      ..on<ParticipantNameUpdatedEvent>((event) {
-        sortParticipants();
-      })
-      ..on<AudioPlaybackStatusChanged>((event) async {
-        if (!_callRoom.canPlaybackAudio) {
-          bool? yesno = await context.showPlayAudioManuallyDialog();
-          if (yesno == true) {
-            await _callRoom.startAudio();
-          }
-        }
-      });
-  }
-
-  void sortParticipants() {
-    Map<String, ParticipantTrack> mediaTracks = {};
-    for (var participant in _callRoom.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 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;
-    });
-
-    ParticipantTrack localTrack = ParticipantTrack(
-      participant: _callRoom.localParticipant!,
-      videoTrack: null,
-      isScreenShare: false,
-    );
-    if (_callRoom.localParticipant != null) {
-      final localParticipantTracks = _callRoom.localParticipant?.videoTrackPublications;
-      if (localParticipantTracks != null) {
-        for (var t in localParticipantTracks) {
-          localTrack.videoTrack = t.track;
-          localTrack.isScreenShare = t.isScreenShare;
-        }
-      }
-    }
-
-    setState(() {
-      _participantTracks = [localTrack, ...mediaTrackList];
-      if (_focusParticipant == null) {
-        _focusParticipant = _participantTracks.first;
-      } else {
-        final idx = _participantTracks.indexWhere((x) => _focusParticipant!.participant.sid == x.participant.sid);
-        _focusParticipant = _participantTracks[idx];
-      }
-    });
-  }
-
-  void onRoomDidUpdate() => sortParticipants();
-
-  void revertDevices(List<MediaDevice> devices) async {
-    _audioInputs = devices.where((d) => d.kind == 'audioinput').toList();
-    _videoInputs = devices.where((d) => d.kind == 'videoinput').toList();
-
-    if (_audioInputs.isNotEmpty) {
-      if (_audioDevice == null && _enableAudio) {
-        _audioDevice = _audioInputs.first;
-        Future.delayed(const Duration(milliseconds: 100), () async {
-          await changeLocalAudioTrack();
-          setState(() {});
-        });
-      }
-    }
-
-    if (_videoInputs.isNotEmpty) {
-      if (_videoDevice == null && _enableVideo) {
-        _videoDevice = _videoInputs.first;
-        Future.delayed(const Duration(milliseconds: 100), () async {
-          await changeLocalVideoTrack();
-          setState(() {});
-        });
-      }
-    }
-    setState(() {});
-  }
-
-  Future<void> setEnableVideo(value) async {
-    _enableVideo = value;
-    if (!_enableVideo) {
-      await _videoTrack?.stop();
-      _videoTrack = null;
-    } else {
-      await changeLocalVideoTrack();
-    }
-    setState(() {});
-  }
-
-  Future<void> setEnableAudio(value) async {
-    _enableAudio = value;
-    if (!_enableAudio) {
-      await _audioTrack?.stop();
-      _audioTrack = null;
-    } else {
-      await changeLocalAudioTrack();
-    }
-    setState(() {});
-  }
-
-  Future<void> changeLocalAudioTrack() async {
-    if (_audioTrack != null) {
-      await _audioTrack!.stop();
-      _audioTrack = null;
-    }
-
-    if (_audioDevice != null) {
-      _audioTrack = await LocalAudioTrack.create(AudioCaptureOptions(
-        deviceId: _audioDevice!.deviceId,
-      ));
-      await _audioTrack!.start();
-    }
-  }
-
-  Future<void> changeLocalVideoTrack() async {
-    if (_videoTrack != null) {
-      await _videoTrack!.stop();
-      _videoTrack = null;
-    }
-
-    if (_videoDevice != null) {
-      _videoTrack = await LocalVideoTrack.createCameraTrack(CameraCaptureOptions(
-        deviceId: _videoDevice!.deviceId,
-        params: _videoParameters,
-      ));
-      await _videoTrack!.start();
-    }
-  }
 
   @override
   void initState() {
     super.initState();
-    _subscription = Hardware.instance.onDeviceChange.stream.listen(revertDevices);
+
-    _callRoom = Room();
+    WidgetsBinding.instance.addPostFrameCallback((_) {
-    _callListener = _callRoom.createListener();
+      _chat.setShown(true);
-    Hardware.instance.enumerateDevices().then(revertDevices);
+    });
-    WakelockPlus.enable();
   }
 
   @override
   Widget build(BuildContext context) {
-    return IndentWrapper(
+    _chat = context.watch<ChatProvider>();
-      title: AppLocalizations.of(context)!.chatCall,
+    if (!_isHandled) {
-      hideDrawer: true,
+      _isHandled = true;
-      child: FutureBuilder(
+      if (_chat.handleCall(widget.call, widget.call.channel)) {
-        future: exchangeToken(),
+        _chat.call?.init();
+      }
+    }
+
+    Widget content;
+    if (_chat.call == null) {
+      content = const Center(
+        child: CircularProgressIndicator(),
+      );
+    } else {
+      content = FutureBuilder(
+        future: _call.exchangeToken(context),
         builder: (context, snapshot) {
           if (!snapshot.hasData || snapshot.data == null) {
             return const Center(child: CircularProgressIndicator());
@@ -372,15 +65,20 @@ class _ChatCallState extends State<ChatCall> {
                   Expanded(
                     child: Container(
                       color: Theme.of(context).colorScheme.surfaceVariant,
-                      child: _focusParticipant != null
+                      child: _call.focusTrack != null
                           ? InteractiveParticipantWidget(
-                              participant: _focusParticipant!,
+                              isFixed: false,
+                              participant: _call.focusTrack!,
                               onTap: () {},
                             )
                           : Container(),
                     ),
                   ),
-                  if (_callRoom.localParticipant != null) ControlsWidget(_callRoom, _callRoom.localParticipant!),
+                  if (_call.room.localParticipant != null)
+                    ControlsWidget(
+                      _call.room,
+                      _call.room.localParticipant!,
+                    ),
                 ],
               ),
               Positioned(
@@ -391,10 +89,10 @@ class _ChatCallState extends State<ChatCall> {
                   height: 128,
                   child: ListView.builder(
                     scrollDirection: Axis.horizontal,
-                    itemCount: math.max(0, _participantTracks.length),
+                    itemCount: math.max(0, _call.participantTracks.length),
                     itemBuilder: (BuildContext context, int index) {
-                      final track = _participantTracks[index];
+                      final track = _call.participantTracks[index];
-                      if (track.participant.sid == _focusParticipant?.participant.sid) {
+                      if (track.participant.sid == _call.focusTrack?.participant.sid) {
                         return Container();
                       }
 
@@ -403,13 +101,14 @@ class _ChatCallState extends State<ChatCall> {
                         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 != _focusParticipant?.participant.sid) {
+                              if (track.participant.sid != _call.focusTrack?.participant.sid) {
-                                setState(() => _focusParticipant = track);
+                                _call.changeFocusTrack(track);
                               }
                             },
                           ),
@@ -422,27 +121,21 @@ class _ChatCallState extends State<ChatCall> {
             ],
           );
         },
-      ),
+      );
+    }
+
+    return IndentWrapper(
+      title: AppLocalizations.of(context)!.chatCall,
+      hideDrawer: true,
+      child: content,
     );
   }
 
   @override
   void deactivate() {
-    _subscription?.cancel();
+    WidgetsBinding.instance.addPostFrameCallback((_) => _chat.setShown(false));
     super.deactivate();
   }
-
-  @override
-  void dispose() {
-    WakelockPlus.disable();
-    (() async {
-      _callRoom.removeListener(onRoomDidUpdate);
-      await _callListener.dispose();
-      await _callRoom.disconnect();
-      await _callRoom.dispose();
-    })();
-    super.dispose();
-  }
 }
 
 class InteractiveParticipantWidget extends StatelessWidget {

lib/widgets/chat/call/call_overlay.dart

@@ -0,0 +1,63 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:draggable_float_widget/draggable_float_widget.dart';
+import 'package:provider/provider.dart';
+import 'package:solian/providers/chat.dart';
+import 'package:solian/router.dart';
+
+class CallOverlay extends StatelessWidget {
+  const CallOverlay({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    const radius = BorderRadius.all(Radius.circular(8));
+
+    final chat = context.watch<ChatProvider>();
+
+    if (chat.isShown || chat.call == null) {
+      return Container();
+    }
+
+    return DraggableFloatWidget(
+      config: const DraggableFloatWidgetBaseConfig(
+        initPositionYInTop: false,
+        initPositionYMarginBorder: 50,
+        borderTopContainTopBar: true,
+        borderBottom: defaultBorderWidth,
+        borderLeft: 8,
+      ),
+      child: Material(
+        elevation: 6,
+        color: Colors.transparent,
+        borderRadius: radius,
+        child: ClipRRect(
+          borderRadius: radius,
+          child: Container(
+            height: 80,
+            width: 80,
+            color: Theme.of(context).colorScheme.secondaryContainer,
+            child: Column(
+              mainAxisSize: MainAxisSize.max,
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                const Icon(Icons.call, size: 18),
+                const SizedBox(height: 4),
+                Text(
+                  AppLocalizations.of(context)!.chatCallOngoingShort,
+                  style: const TextStyle(fontSize: 12),
+                )
+              ],
+            ),
+          ),
+        ),
+      ),
+      onTap: () {
+        router.pushNamed(
+          'chat.channel.call',
+          extra: chat.call!.info,
+          pathParameters: {'channel': chat.call!.channel.alias},
+        );
+      },
+    );
+  }
+}

lib/widgets/chat/call/controls.dart

@@ -6,6 +6,10 @@ import 'package:flutter_background/flutter_background.dart';
 import 'package:flutter_webrtc/flutter_webrtc.dart';
 import 'package:livekit_client/livekit_client.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:provider/provider.dart';
+import 'package:solian/providers/chat.dart';
+import 'package:solian/router.dart';
+import 'package:solian/widgets/chat/call/exts.dart';
 import 'package:solian/widgets/exts.dart';
 
 class ControlsWidget extends StatefulWidget {
@@ -64,11 +68,22 @@ class _ControlsWidgetState extends State<ControlsWidget> {
 
   bool get isMuted => participant.isMuted;
 
+  void disconnect() async {
+    if (await context.showDisconnectDialog() != true) return;
+
+    final chat = context.read<ChatProvider>();
+    if (chat.call != null) {
+      chat.call!.deactivate();
+      chat.call!.dispose();
+      router.pop();
+    }
+  }
+
   void disableAudio() async {
     await participant.setMicrophoneEnabled(false);
   }
 
-  Future<void> enableAudio() async {
+  void enableAudio() async {
     await participant.setMicrophoneEnabled(true);
   }
 
@@ -207,11 +222,17 @@ class _ControlsWidgetState extends State<ControlsWidget> {
         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: AppLocalizations.of(context)!.chatCallMute,
               )
             else
@@ -247,43 +268,9 @@ class _ControlsWidgetState extends State<ControlsWidget> {
             IconButton(
               onPressed: enableAudio,
               icon: const Icon(Icons.mic_off),
+              color: Theme.of(context).colorScheme.onSurface,
               tooltip: AppLocalizations.of(context)!.chatCallUnMute,
             ),
-          if (!lkPlatformIs(PlatformType.iOS))
-            PopupMenuButton<MediaDevice>(
-              icon: const Icon(Icons.volume_up),
-              itemBuilder: (BuildContext context) {
-                return [
-                  const PopupMenuItem<MediaDevice>(
-                    value: null,
-                    child: ListTile(
-                      leading: Icon(Icons.speaker),
-                      title: Text('Select Audio Output'),
-                    ),
-                  ),
-                  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(
-              disabledColor: Colors.grey,
-              onPressed: Hardware.instance.canSwitchSpeakerphone ? setSpeakerphoneOn : null,
-              icon: Icon(_speakerphoneOn ? Icons.speaker_phone : Icons.phone_android),
-              tooltip: AppLocalizations.of(context)!.chatCallChangeSpeaker,
-            ),
           if (participant.isCameraEnabled())
             PopupMenuButton<MediaDevice>(
               icon: const Icon(Icons.videocam_sharp),
@@ -317,22 +304,61 @@ class _ControlsWidgetState extends State<ControlsWidget> {
             IconButton(
               onPressed: enableVideo,
               icon: const Icon(Icons.videocam_off),
+              color: Theme.of(context).colorScheme.onSurface,
               tooltip: AppLocalizations.of(context)!.chatCallVideoOn,
             ),
           IconButton(
             icon: Icon(position == CameraPosition.back ? Icons.video_camera_back : Icons.video_camera_front),
+            color: Theme.of(context).colorScheme.onSurface,
             onPressed: () => toggleCamera(),
             tooltip: AppLocalizations.of(context)!.chatCallVideoFlip,
           ),
+          if (!lkPlatformIs(PlatformType.iOS))
+            PopupMenuButton<MediaDevice>(
+              icon: const Icon(Icons.volume_up),
+              itemBuilder: (BuildContext context) {
+                return [
+                  const PopupMenuItem<MediaDevice>(
+                    value: null,
+                    child: ListTile(
+                      leading: Icon(Icons.speaker),
+                      title: Text('Select Audio Output'),
+                    ),
+                  ),
+                  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.speaker_phone : Icons.phone_android),
+              tooltip: AppLocalizations.of(context)!.chatCallChangeSpeaker,
+            ),
           if (participant.isScreenShareEnabled())
             IconButton(
               icon: const Icon(Icons.monitor_outlined),
+              color: Theme.of(context).colorScheme.onSurface,
               onPressed: () => disableScreenShare(),
               tooltip: AppLocalizations.of(context)!.chatCallScreenOff,
             )
           else
             IconButton(
               icon: const Icon(Icons.monitor),
+              color: Theme.of(context).colorScheme.onSurface,
               onPressed: () => enableScreenShare(),
               tooltip: AppLocalizations.of(context)!.chatCallScreenOn,
             ),

lib/widgets/chat/call/exts.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 
 extension SolianCallExt on BuildContext {
   Future<bool?> showPlayAudioManuallyDialog() => showDialog<bool>(
@@ -24,16 +25,16 @@ extension SolianCallExt on BuildContext {
   Future<bool?> showDisconnectDialog() => showDialog<bool>(
         context: this,
         builder: (ctx) => AlertDialog(
-          title: const Text('Disconnect'),
+          title: Text(AppLocalizations.of(this)!.chatCallDisconnect),
-          content: const Text('Are you sure to disconnect?'),
+          content: Text(AppLocalizations.of(this)!.chatCallDisconnectConfirm),
           actions: [
             TextButton(
               onPressed: () => Navigator.pop(ctx, false),
-              child: const Text('Cancel'),
+              child: Text(AppLocalizations.of(this)!.confirmCancel),
             ),
             TextButton(
               onPressed: () => Navigator.pop(ctx, true),
-              child: const Text('Disconnect'),
+              child: Text(AppLocalizations.of(this)!.confirmOkay),
             ),
           ],
         ),

lib/widgets/common_wrapper.dart

@@ -5,7 +5,7 @@ class LayoutWrapper extends StatelessWidget {
   final Widget? child;
   final Widget? floatingActionButton;
   final List<Widget>? appBarActions;
-  final bool? noSafeArea;
+  final bool noSafeArea;
   final String title;
 
   const LayoutWrapper({
@@ -14,7 +14,7 @@ class LayoutWrapper extends StatelessWidget {
     required this.title,
     this.floatingActionButton,
     this.appBarActions,
-    this.noSafeArea,
+    this.noSafeArea = false,
   });
 
   @override
@@ -25,7 +25,7 @@ class LayoutWrapper extends StatelessWidget {
       appBar: AppBar(title: Text(title), actions: appBarActions),
       floatingActionButton: floatingActionButton,
       drawer: const SolianNavigationDrawer(),
-      body: (noSafeArea ?? false) ? content : SafeArea(child: content),
+      body: noSafeArea ? content : SafeArea(child: content),
     );
   }
 }

lib/widgets/indent_wrapper.dart

@@ -1,9 +1,10 @@
 import 'package:flutter/material.dart';
+import 'package:solian/router.dart';
 import 'package:solian/widgets/common_wrapper.dart';
 import 'package:solian/widgets/navigation_drawer.dart';
 
 class IndentWrapper extends LayoutWrapper {
-  final bool? hideDrawer;
+  final bool hideDrawer;
 
   const IndentWrapper({
     super.key,
@@ -11,8 +12,8 @@ class IndentWrapper extends LayoutWrapper {
     required super.title,
     super.floatingActionButton,
     super.appBarActions,
-    this.hideDrawer,
+    this.hideDrawer = false,
-    super.noSafeArea,
+    super.noSafeArea = false,
   }) : super();
 
   @override
@@ -20,10 +21,17 @@ class IndentWrapper extends LayoutWrapper {
     final content = child ?? Container();
 
     return Scaffold(
-      appBar: AppBar(title: Text(title), actions: appBarActions),
+      appBar: AppBar(
+        leading: hideDrawer ? IconButton(
+          icon: const Icon(Icons.arrow_back),
+          onPressed: () => router.pop(),
+        ) : null,
+        title: Text(title),
+        actions: appBarActions,
+      ),
       floatingActionButton: floatingActionButton,
-      drawer: (hideDrawer ?? false) ? null : const SolianNavigationDrawer(),
+      drawer: const SolianNavigationDrawer(),
-      body: (noSafeArea ?? false) ? content : SafeArea(child: content),
+      body: noSafeArea ? content : SafeArea(child: content),
     );
   }
 }

lib/widgets/posts/content/attachment.dart

@@ -62,7 +62,9 @@ class _AttachmentItemState extends State<AttachmentItem> {
                     : Positioned(
                         right: 12,
                         bottom: 8,
+                        child: Material(
                           child: Chip(label: Text(widget.badge!)),
+                        ),
                       )
               ],
             ),

pubspec.lock

@@ -169,6 +169,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "7.0.0"
+  draggable_float_widget:
+    dependency: "direct main"
+    description:
+      name: draggable_float_widget
+      sha256: "075675c56f6b2bfc9f972a3937dc1b59838489a312f75fe7e90ba6844a84dce4"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.1.0"
   fake_async:
     dependency: transitive
     description:

pubspec.yaml

@@ -66,6 +66,7 @@ dependencies:
   flutter_background: ^1.2.0
   wakelock_plus: ^1.2.4
   flutter_local_notifications: ^17.1.0
+  draggable_float_widget: ^0.1.0
 
 dev_dependencies:
   flutter_test: