tdesktop/Telegram/SourceFiles/data/data_peer_values.h

125 lines
3.5 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#pragma once
#include <rpl/filter.h>
#include <rpl/map.h>
#include <rpl/combine.h>
#include "data/data_peer.h"
namespace Data {
template <typename ChangeType, typename Error, typename Generator>
inline auto FlagsValueWithMask(
rpl::producer<ChangeType, Error, Generator> &&value,
typename ChangeType::Type mask) {
return std::move(value)
| rpl::filter([mask](const ChangeType &change) {
return change.diff & mask;
})
| rpl::map([mask](const ChangeType &change) {
return change.value & mask;
});
}
template <typename ChangeType, typename Error, typename Generator>
inline auto SingleFlagValue(
rpl::producer<ChangeType, Error, Generator> &&value,
typename ChangeType::Enum flag) {
return FlagsValueWithMask(std::move(value), flag)
| rpl::map([flag](typename ChangeType::Type value) {
return !!value;
});
}
template <
typename PeerType,
typename ChangeType = typename PeerType::Flags::Change>
inline auto PeerFlagsValue(PeerType *peer) {
Expects(peer != nullptr);
return peer->flagsValue();
}
template <
typename PeerType,
typename ChangeType = typename PeerType::Flags::Change>
inline auto PeerFlagsValue(
PeerType *peer,
typename PeerType::Flags::Type mask) {
return FlagsValueWithMask(PeerFlagsValue(peer), mask);
}
template <
typename PeerType,
typename ChangeType = typename PeerType::Flags::Change>
inline auto PeerFlagValue(
PeerType *peer,
typename PeerType::Flags::Enum flag) {
return SingleFlagValue(PeerFlagsValue(peer), flag);
}
//
//inline auto PeerFlagValue(
// UserData *user,
// MTPDuser_ClientFlag flag) {
// return PeerFlagValue(user, static_cast<MTPDuser::Flag>(flag));
//}
rpl::producer<bool> PeerFlagValue(
ChatData *chat,
MTPDchat_ClientFlag flag);
rpl::producer<bool> PeerFlagValue(
ChannelData *channel,
MTPDchannel_ClientFlag flag);
template <
typename PeerType,
typename = typename PeerType::FullFlags::Change>
inline auto PeerFullFlagsValue(PeerType *peer) {
Expects(peer != nullptr);
return peer->fullFlagsValue();
}
template <
typename PeerType,
typename = typename PeerType::FullFlags::Change>
inline auto PeerFullFlagsValue(
PeerType *peer,
typename PeerType::FullFlags::Type mask) {
return FlagsValueWithMask(PeerFullFlagsValue(peer), mask);
}
template <
typename PeerType,
typename = typename PeerType::FullFlags::Change>
inline auto PeerFullFlagValue(
PeerType *peer,
typename PeerType::FullFlags::Enum flag) {
return SingleFlagValue(PeerFullFlagsValue(peer), flag);
}
rpl::producer<bool> CanWriteValue(UserData *user);
rpl::producer<bool> CanWriteValue(ChatData *chat);
rpl::producer<bool> CanWriteValue(ChannelData *channel);
rpl::producer<bool> CanWriteValue(not_null<PeerData*> peer);
} // namespace Data