76 lines
2.4 KiB
Dart
76 lines
2.4 KiB
Dart
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/*
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* Copyright (c) 2019 Zender & Kurtz GbR.
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*
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* Authors:
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* Christian Pauly <krille@famedly.com>
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* Marcel Radzio <mtrnord@famedly.com>
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*
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* This file is part of famedlysdk.
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*
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* famedlysdk is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* famedlysdk is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with famedlysdk. If not, see <http://www.gnu.org/licenses/>.
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*/
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import 'dart:async';
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import 'Event.dart';
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import 'Room.dart';
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import 'User.dart';
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import 'utils/ChatTime.dart';
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import 'sync/EventUpdate.dart';
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/// Represents the timeline of a room. The callbacks [onUpdate], [onDelete],
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/// [onInsert] and [onResort] will be triggered automatically. The initial
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/// event list will be retreived when created by the [room.getTimeline] method.
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class Timeline {
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final Room room;
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List<Event> events = [];
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final onUpdateCallback onUpdate;
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final onInsertCallback onInsert;
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StreamSubscription<EventUpdate> sub;
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Timeline({this.room, this.events, this.onUpdate, this.onInsert}) {
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sub ??= room.client.connection.onEvent.stream.listen(_handleEventUpdate);
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}
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void _handleEventUpdate(EventUpdate eventUpdate) async {
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try {
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if (eventUpdate.roomID != room.id) return;
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if (eventUpdate.type == "timeline" || eventUpdate.type == "history") {
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if (!eventUpdate.content.containsKey("id"))
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eventUpdate.content["id"] = eventUpdate.content["event_id"];
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User user = await room.client.store
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?.getUser(matrixID: eventUpdate.content["sender"], room: room);
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if (user != null) {
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eventUpdate.content["displayname"] = user.displayName;
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eventUpdate.content["avatar_url"] = user.avatarUrl.mxc;
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}
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Event newEvent = Event.fromJson(eventUpdate.content, room);
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events.insert(0, newEvent);
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onInsert(0);
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}
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onUpdate();
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} catch (e) {
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print("[WARNING] ${e.toString()}");
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sub.cancel();
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}
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}
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}
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typedef onUpdateCallback = void Function();
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typedef onInsertCallback = void Function(int insertID);
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