212 lines
5.9 KiB
C++
212 lines
5.9 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 <rpl/filter.h>
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#include <rpl/map.h>
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#include <rpl/combine.h>
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#include "data/data_peer.h"
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namespace Data {
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template <typename ChangeType, typename Error, typename Generator>
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inline auto FlagsValueWithMask(
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rpl::producer<ChangeType, Error, Generator> &&value,
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typename ChangeType::Type mask) {
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return std::move(value)
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| rpl::filter([mask](const ChangeType &change) {
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return change.diff & mask;
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})
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| rpl::map([mask](const ChangeType &change) {
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return change.value & mask;
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});
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}
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template <typename ChangeType, typename Error, typename Generator>
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inline auto SingleFlagValue(
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rpl::producer<ChangeType, Error, Generator> &&value,
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typename ChangeType::Enum flag) {
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return FlagsValueWithMask(std::move(value), flag)
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| rpl::map([flag](typename ChangeType::Type value) {
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return !!value;
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});
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}
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template <
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typename PeerType,
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typename ChangeType = typename PeerType::Flags::Change>
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inline auto PeerFlagsValue(PeerType *peer) {
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Expects(peer != nullptr);
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return peer->flagsValue();
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}
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template <
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typename PeerType,
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typename ChangeType = typename PeerType::Flags::Change>
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inline auto PeerFlagsValue(
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PeerType *peer,
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typename PeerType::Flags::Type mask) {
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return FlagsValueWithMask(PeerFlagsValue(peer), mask);
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}
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template <
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typename PeerType,
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typename ChangeType = typename PeerType::Flags::Change>
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inline auto PeerFlagValue(
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PeerType *peer,
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typename PeerType::Flags::Enum flag) {
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return SingleFlagValue(PeerFlagsValue(peer), flag);
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}
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//
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//inline auto PeerFlagValue(
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// UserData *user,
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// MTPDuser_ClientFlag flag) {
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// return PeerFlagValue(user, static_cast<MTPDuser::Flag>(flag));
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//}
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inline auto PeerFlagValue(
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ChatData *chat,
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MTPDchat_ClientFlag flag) {
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return PeerFlagValue(chat, static_cast<MTPDchat::Flag>(flag));
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}
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inline auto PeerFlagValue(
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ChannelData *channel,
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MTPDchannel_ClientFlag flag) {
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return PeerFlagValue(channel, static_cast<MTPDchannel::Flag>(flag));
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}
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template <
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typename PeerType,
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typename = typename PeerType::FullFlags::Change>
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inline auto PeerFullFlagsValue(PeerType *peer) {
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Expects(peer != nullptr);
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return peer->fullFlagsValue();
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}
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template <
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typename PeerType,
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typename = typename PeerType::FullFlags::Change>
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inline auto PeerFullFlagsValue(
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PeerType *peer,
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typename PeerType::FullFlags::Type mask) {
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return FlagsValueWithMask(PeerFullFlagsValue(peer), mask);
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}
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template <
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typename PeerType,
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typename = typename PeerType::FullFlags::Change>
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inline auto PeerFullFlagValue(
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PeerType *peer,
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typename PeerType::FullFlags::Enum flag) {
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return SingleFlagValue(PeerFullFlagsValue(peer), flag);
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}
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inline auto AdminRightsValue(not_null<ChannelData*> channel) {
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return channel->adminRightsValue();
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}
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inline auto AdminRightsValue(
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not_null<ChannelData*> channel,
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MTPDchannelAdminRights::Flags mask) {
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return FlagsValueWithMask(AdminRightsValue(channel), mask);
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}
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inline auto AdminRightValue(
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not_null<ChannelData*> channel,
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MTPDchannelAdminRights::Flag flag) {
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return SingleFlagValue(AdminRightsValue(channel), flag);
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}
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inline auto RestrictionsValue(not_null<ChannelData*> channel) {
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return channel->restrictionsValue();
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}
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inline auto RestrictionsValue(
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not_null<ChannelData*> channel,
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MTPDchannelBannedRights::Flags mask) {
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return FlagsValueWithMask(RestrictionsValue(channel), mask);
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}
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inline auto RestrictionValue(
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not_null<ChannelData*> channel,
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MTPDchannelBannedRights::Flag flag) {
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return SingleFlagValue(RestrictionsValue(channel), flag);
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}
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inline auto CanWriteValue(UserData *user) {
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using namespace rpl::mappers;
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return PeerFlagValue(user, MTPDuser::Flag::f_deleted)
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| rpl::map(!$1);
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}
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inline auto CanWriteValue(ChatData *chat) {
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using namespace rpl::mappers;
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auto mask = 0
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| MTPDchat::Flag::f_deactivated
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| MTPDchat_ClientFlag::f_forbidden
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| MTPDchat::Flag::f_left
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| MTPDchat::Flag::f_kicked;
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return PeerFlagsValue(chat, mask)
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| rpl::map(!$1);
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}
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inline auto CanWriteValue(ChannelData *channel) {
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auto flagsMask = 0
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| MTPDchannel::Flag::f_left
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| MTPDchannel_ClientFlag::f_forbidden
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| MTPDchannel::Flag::f_creator
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| MTPDchannel::Flag::f_broadcast;
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return rpl::combine(
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PeerFlagsValue(channel, flagsMask),
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AdminRightValue(
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channel,
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MTPDchannelAdminRights::Flag::f_post_messages),
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RestrictionValue(
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channel,
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MTPDchannelBannedRights::Flag::f_send_messages),
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[](
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MTPDchannel::Flags flags,
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bool postMessagesRight,
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bool sendMessagesRestriction) {
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auto notAmInFlags = 0
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| MTPDchannel::Flag::f_left
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| MTPDchannel_ClientFlag::f_forbidden;
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return !(flags & notAmInFlags)
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&& (postMessagesRight
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|| (flags & MTPDchannel::Flag::f_creator)
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|| (!(flags & MTPDchannel::Flag::f_broadcast)
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&& !sendMessagesRestriction));
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});
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}
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inline rpl::producer<bool> CanWriteValue(not_null<PeerData*> peer) {
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if (auto user = peer->asUser()) {
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return CanWriteValue(user);
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} else if (auto chat = peer->asChat()) {
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return CanWriteValue(chat);
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} else if (auto channel = peer->asChannel()) {
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return CanWriteValue(channel);
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}
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Unexpected("Bad peer value in CanWriteValue()");
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}
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} // namespace Data
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