145 lines
4.6 KiB
Dart
145 lines
4.6 KiB
Dart
/*
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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 'package:famedlysdk/src/RoomState.dart';
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import 'package:famedlysdk/src/sync/EventUpdate.dart';
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import 'package:famedlysdk/src/utils/ChatTime.dart';
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import 'package:famedlysdk/src/utils/Receipt.dart';
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import './Room.dart';
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/// Defines a timeline event for a room.
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class Event extends RoomState {
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/// The status of this event.
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/// -1=ERROR
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/// 0=SENDING
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/// 1=SENT
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/// 2=RECEIVED
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int status;
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static const int defaultStatus = 2;
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Event(
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{this.status = defaultStatus,
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dynamic content,
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String typeKey,
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String eventId,
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String roomId,
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String senderId,
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ChatTime time,
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dynamic unsigned,
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dynamic prevContent,
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String stateKey,
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Room room})
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: super(
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content: content,
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typeKey: typeKey,
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eventId: eventId,
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roomId: roomId,
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senderId: senderId,
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time: time,
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unsigned: unsigned,
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prevContent: prevContent,
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stateKey: stateKey,
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room: room);
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/// Get a State event from a table row or from the event stream.
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factory Event.fromJson(Map<String, dynamic> jsonPayload, Room room) {
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final Map<String, dynamic> content =
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RoomState.getMapFromPayload(jsonPayload['content']);
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final Map<String, dynamic> unsigned =
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RoomState.getMapFromPayload(jsonPayload['unsigned']);
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final Map<String, dynamic> prevContent =
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RoomState.getMapFromPayload(jsonPayload['prev_content']);
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return Event(
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status: jsonPayload['status'] ?? defaultStatus,
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content: content,
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typeKey: jsonPayload['type'],
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eventId: jsonPayload['event_id'],
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roomId: jsonPayload['room_id'],
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senderId: jsonPayload['sender'],
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time: ChatTime(jsonPayload['origin_server_ts']),
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unsigned: unsigned,
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prevContent: prevContent,
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stateKey: jsonPayload['state_key'],
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room: room);
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}
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/// Returns the body of this event if it has a body.
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String get text => content["body"] ?? "";
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/// Returns the formatted boy of this event if it has a formatted body.
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String get formattedText => content["formatted_body"] ?? "";
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/// Use this to get the body.
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String getBody() {
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if (text != "") return text;
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if (formattedText != "") return formattedText;
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return "$type";
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}
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/// Returns a list of [Receipt] instances for this event.
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List<Receipt> get receipts {
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if (!(room.roomAccountData.containsKey("m.receipt"))) return [];
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List<Receipt> receiptsList = [];
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for (var entry in room.roomAccountData["m.receipt"].content.entries) {
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if (entry.value["event_id"] == eventId)
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receiptsList.add(Receipt(
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room.getUserByMXIDSync(entry.key), ChatTime(entry.value["ts"])));
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}
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return receiptsList;
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}
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/// Removes this event if the status is < 1. This event will just be removed
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/// from the database and the timelines. Returns false if not removed.
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Future<bool> remove() async {
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if (status < 1) {
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if (room.client.store != null)
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await room.client.store.removeEvent(eventId);
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room.client.connection.onEvent.add(EventUpdate(
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roomID: room.id,
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type: "timeline",
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eventType: typeKey,
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content: {
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"event_id": eventId,
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"status": -2,
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"content": {"body": "Removed..."}
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}));
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return true;
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}
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return false;
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}
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/// Try to send this event again. Only works with events of status -1.
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Future<String> sendAgain({String txid}) async {
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if (status != -1) return null;
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remove();
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final String eventID = await room.sendTextEvent(text, txid: txid);
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return eventID;
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}
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/// Whether the client is allowed to redact this event.
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bool get canRedact => senderId == room.client.userID || room.canRedact;
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}
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