45 lines
1.9 KiB
Dart
45 lines
1.9 KiB
Dart
/*
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* Famedly Matrix SDK
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* Copyright (C) 2020, 2021 Famedly GmbH
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program 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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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import '../../matrix.dart';
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/// This extension adds easy-to-use filters for the sync update, meant to be used on the `client.onSync` stream, e.g.
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/// `client.onSync.stream.where((s) => s.hasRoomUpdate)`. Multiple filters can easily be
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/// combind with boolean logic: `client.onSync.stream.where((s) => s.hasRoomUpdate || s.hasPresenceUpdate)`
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extension SyncUpdateFilters on SyncUpdate {
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/// Returns true if this sync updat has a room update
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/// That means there is account data, if there is a room in one of the `join`, `leave` or `invite` blocks of the sync or if there is a to_device event.
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bool get hasRoomUpdate {
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// if we have an account data change we need to re-render, as `m.direct` might have changed
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if (accountData?.isNotEmpty ?? false) {
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return true;
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}
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// check for a to_device event
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if (toDevice?.isNotEmpty ?? false) {
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return true;
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}
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// return if there are rooms to update
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return (rooms?.join?.isNotEmpty ?? false) ||
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(rooms?.invite?.isNotEmpty ?? false) ||
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(rooms?.leave?.isNotEmpty ?? false);
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}
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/// Returns if this sync update has presence updates
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bool get hasPresenceUpdate => presence?.isNotEmpty ?? false;
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}
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