[Client] Make callbacks to streams

lib/src/Client.dart

@@ -44,8 +44,6 @@ import 'sync/RoomUpdate.dart';
 import 'sync/UserUpdate.dart';
 import 'utils/MatrixException.dart';
 
-typedef AccountDataEventCB = void Function(AccountData accountData);
-typedef PresenceCB = void Function(Presence presence);
 typedef RoomSorter = int Function(Room a, Room b);
 
 enum HTTPType { GET, POST, PUT, DELETE }
@@ -121,12 +119,6 @@ class Client {
   /// Presences of users by a given matrix ID
   Map<String, Presence> presences = {};
 
-  /// Callback will be called on account data updates.
-  AccountDataEventCB onAccountData;
-
-  /// Callback will be called on presences.
-  PresenceCB onPresence;
-
   Room getRoomByAlias(String alias) {
     for (int i = 0; i < rooms.length; i++) {
       if (rooms[i].canonicalAlias == alias) return rooms[i];
@@ -145,12 +137,12 @@ class Client {
     if (userUpdate.type == "account_data") {
       AccountData newAccountData = AccountData.fromJson(userUpdate.content);
       accountData[newAccountData.typeKey] = newAccountData;
-      if (onAccountData != null) onAccountData(newAccountData);
+      if (onAccountData != null) onAccountData.add(newAccountData);
     }
     if (userUpdate.type == "presence") {
       Presence newPresence = Presence.fromJson(userUpdate.content);
       presences[newPresence.sender] = newPresence;
-      if (onPresence != null) onPresence(newPresence);
+      if (onPresence != null) onPresence.add(newPresence);
     }
   }
 
@@ -472,6 +464,13 @@ class Client {
   /// When a new sync response is coming in, this gives the complete payload.
   final StreamController<dynamic> onSync = StreamController.broadcast();
 
+  /// Callback will be called on presences.
+  final StreamController<Presence> onPresence = StreamController.broadcast();
+
+  /// Callback will be called on account data updates.
+  final StreamController<AccountData> onAccountData =
+      StreamController.broadcast();
+
   /// Matrix synchronisation is done with https long polling. This needs a
   /// timeout which is usually 30 seconds.
   int syncTimeoutSec = 30;
@@ -948,7 +947,7 @@ class Client {
           rooms[j].mInvitedMemberCount = chatUpdate.summary.mInvitedMemberCount;
         }
       }
-      if (rooms[j].onUpdate != null) rooms[j].onUpdate();
+      if (rooms[j].onUpdate != null) rooms[j].onUpdate.add(rooms[j].id);
     }
     _sortRooms();
   }
@@ -992,7 +991,7 @@ class Client {
       rooms[j].ephemerals[eventUpdate.eventType] =
           RoomAccountData.fromJson(eventUpdate.content, rooms[j]);
     }
-    if (rooms[j].onUpdate != null) rooms[j].onUpdate();
+    if (rooms[j].onUpdate != null) rooms[j].onUpdate.add(rooms[j].id);
     if (eventUpdate.type == "timeline") _sortRooms();
   }
 

lib/src/Room.dart

@@ -21,6 +21,8 @@
  * along with famedlysdk.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+import 'dart:async';
+
 import 'package:famedlysdk/src/Client.dart';
 import 'package:famedlysdk/src/Event.dart';
 import 'package:famedlysdk/src/RoomAccountData.dart';
@@ -35,8 +37,6 @@ import './User.dart';
 import 'Timeline.dart';
 import 'utils/StatesMap.dart';
 
-typedef onRoomUpdate = void Function();
-
 /// Represents a Matrix room.
 class Room {
   /// The full qualified Matrix ID for the room in the format '!localid:server.abc'.
@@ -91,8 +91,9 @@ class Room {
       ? roomAccountData["m.fully_read"].content["event_id"]
       : "";
 
-  /// If something changes, this callback will be triggered.
+  /// If something changes, this callback will be triggered. Will return the
-  onRoomUpdate onUpdate;
+  /// room id.
+  final StreamController<String> onUpdate = StreamController.broadcast();
 
   /// The name of the room if set by a participant.
   String get name => states["m.room.name"] != null
@@ -826,7 +827,7 @@ class Room {
         return;
       });
     }
-    if (onUpdate != null) onUpdate();
+    if (onUpdate != null) onUpdate.add(id);
     _requestingMatrixIds.remove(mxID);
     return user;
   }

test/Client_test.dart

@@ -59,12 +59,12 @@ void main() {
     test('Login', () async {
       int presenceCounter = 0;
       int accountDataCounter = 0;
-      matrix.onPresence = (Presence data) {
+      matrix.onPresence.stream.listen((Presence data) {
         presenceCounter++;
-      };
+      });
-      matrix.onAccountData = (AccountData data) {
+      matrix.onAccountData.stream.listen((AccountData data) {
         accountDataCounter++;
-      };
+      });
 
       expect(matrix.homeserver, null);
       expect(matrix.matrixVersions, null);