120 lines
3.6 KiB
C++
120 lines
3.6 KiB
C++
/*
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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) 2014-2017 John Preston, https://desktop.telegram.org
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*/
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#pragma once
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#include "base/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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// 0x0000FFFFU for general peer updates (valid for any peer).
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// 0xFFFF0000U for specific peer updates (valid for user / chat / channel).
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struct PeerUpdate {
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PeerUpdate(PeerData *updated = nullptr) : peer(updated) {
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}
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PeerData *peer;
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enum class Flag {
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// Common flags
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NameChanged = 0x00000001U,
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UsernameChanged = 0x00000002U,
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PhotoChanged = 0x00000004U,
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AboutChanged = 0x00000008U,
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NotificationsEnabled = 0x00000010U,
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SharedMediaChanged = 0x00000020U,
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MigrationChanged = 0x00000040U,
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PinnedChanged = 0x00000080U,
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// For chats and channels
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InviteLinkChanged = 0x00000100U,
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MembersChanged = 0x00000200U,
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AdminsChanged = 0x00000400U,
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BlockedUsersChanged = 0x00000800U,
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// For users
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UserCanShareContact = 0x00010000U,
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UserIsContact = 0x00020000U,
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UserPhoneChanged = 0x00040000U,
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UserIsBlocked = 0x00080000U,
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BotCommandsChanged = 0x00100000U,
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UserOnlineChanged = 0x00200000U,
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BotCanAddToGroups = 0x00400000U,
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UserCommonChatsChanged = 0x00800000U,
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// For chats
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ChatCanEdit = 0x00010000U,
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// For channels
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ChannelAmIn = 0x00010000U,
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ChannelAmEditor = 0x00020000U,
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ChannelCanEditPhoto = 0x00040000U,
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ChannelCanAddMembers = 0x00080000U,
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ChannelCanViewAdmins = 0x00100000U,
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ChannelCanViewMembers = 0x00200000U,
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};
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Q_DECLARE_FLAGS(Flags, Flag);
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Flags flags = 0;
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// NameChanged data
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PeerData::Names oldNames;
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PeerData::NameFirstChars oldNameFirstChars;
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// SharedMediaChanged data
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int32 mediaTypesMask = 0;
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};
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Q_DECLARE_OPERATORS_FOR_FLAGS(PeerUpdate::Flags);
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void peerUpdatedDelayed(const PeerUpdate &update);
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inline void peerUpdatedDelayed(PeerData *peer, PeerUpdate::Flags events) {
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PeerUpdate update(peer);
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update.flags = events;
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peerUpdatedDelayed(update);
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}
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void peerUpdatedSendDelayed();
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inline void mediaOverviewUpdated(PeerData *peer, MediaOverviewType type) {
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PeerUpdate update(peer);
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update.flags |= PeerUpdate::Flag::SharedMediaChanged;
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update.mediaTypesMask |= (1 << type);
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peerUpdatedDelayed(update);
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}
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class PeerUpdatedHandler {
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public:
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template <typename Lambda>
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PeerUpdatedHandler(PeerUpdate::Flags events, Lambda &&handler) : _events(events), _handler(std::move(handler)) {
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}
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void operator()(const PeerUpdate &update) const {
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if (update.flags & _events) {
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_handler(update);
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}
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}
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private:
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PeerUpdate::Flags _events;
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base::lambda<void(const PeerUpdate&)> _handler;
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};
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base::Observable<PeerUpdate, PeerUpdatedHandler> &PeerUpdated();
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} // namespace Notify
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