mirror of
https://github.com/kotatogram/kotatogram-desktop
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71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
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/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop 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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It 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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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
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*/
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#pragma once
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#include "core/observer.h"
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namespace Notify {
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// Generic notifications about updates of some PeerData.
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// You can subscribe to them by Notify::registerPeerObserver().
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enum class PeerUpdateFlag {
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//PeerNameChanged = 0x0001,
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UserCanShareContact = 0x1001,
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ChatCanEdit = 0x2001,
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MegagroupCanEditPhoto = 0x4001,
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MegagroupCanAddMembers = 0x4002,
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ChannelAmIn = 0x8001,
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};
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Q_DECLARE_FLAGS(PeerUpdateFlags, PeerUpdateFlag);
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Q_DECLARE_OPERATORS_FOR_FLAGS(PeerUpdateFlags);
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struct PeerUpdate {
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PeerData *peer = nullptr;
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PeerUpdateFlags flags = 0;
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};
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void peerUpdated(const PeerUpdate &update);
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void peerUpdatedDelayed(const PeerUpdate &update);
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void peerUpdatedSendDelayed();
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namespace internal {
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using PeerUpdateHandler = Function<void, const PeerUpdate&>;
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ConnectionId plainRegisterPeerObserver(PeerUpdateFlags events, PeerUpdateHandler &&handler);
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} // namespace internal
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template <typename ObserverType>
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void registerPeerObserver(PeerUpdateFlags events, ObserverType *observer, void (ObserverType::*handler)(const PeerUpdate &)) {
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auto connection = internal::plainRegisterPeerObserver(events, func(observer, handler));
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// For derivatives of the Observer class we call special friend function observerRegistered().
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// For all other classes we call just a member function observerRegistered().
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using ObserverRegistered = internal::ObserverRegisteredGeneric<ObserverType, std_::is_base_of<Observer, ObserverType>::value>;
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ObserverRegistered::call(observer, connection);
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}
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} // namespace Notify
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