tdesktop/Telegram/SourceFiles/data/data_feed.cpp

475 lines
12 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "data/data_feed.h"
#include "data/data_session.h"
#include "dialogs/dialogs_key.h"
#include "history/history.h"
#include "history/history_item.h"
#include "lang/lang_keys.h"
#include "storage/storage_facade.h"
#include "storage/storage_feed_messages.h"
#include "auth_session.h"
#include "apiwrap.h"
#include "mainwidget.h"
namespace Data {
// #feed
//MessagePosition FeedPositionFromMTP(const MTPFeedPosition &position) {
// Expects(position.type() == mtpc_feedPosition);
//
// const auto &data = position.c_feedPosition();
// return MessagePosition(data.vdate.v, FullMsgId(
// peerToChannel(peerFromMTP(data.vpeer)),
// data.vid.v));
//}
Feed::Feed(FeedId id, not_null<Data::Session*> parent)
: Entry(this)
, _id(id)
, _parent(parent)
, _name(lang(lng_feed_name)) {
indexNameParts();
}
FeedId Feed::id() const {
return _id;
}
void Feed::indexNameParts() {
_nameWords.clear();
_nameFirstLetters.clear();
auto toIndexList = QStringList();
auto appendToIndex = [&](const QString &value) {
if (!value.isEmpty()) {
toIndexList.push_back(TextUtilities::RemoveAccents(value));
}
};
appendToIndex(_name);
const auto appendTranslit = !toIndexList.isEmpty()
&& cRussianLetters().match(toIndexList.front()).hasMatch();
if (appendTranslit) {
appendToIndex(translitRusEng(toIndexList.front()));
}
auto toIndex = toIndexList.join(' ');
toIndex += ' ' + rusKeyboardLayoutSwitch(toIndex);
const auto namesList = TextUtilities::PrepareSearchWords(toIndex);
for (const auto &name : namesList) {
_nameWords.insert(name);
_nameFirstLetters.insert(name[0]);
}
}
void Feed::registerOne(not_null<ChannelData*> channel) {
const auto history = App::history(channel);
if (!base::contains(_channels, history)) {
const auto invisible = (_channels.size() < 2);
_channels.push_back(history);
_parent->session().storage().invalidate(
Storage::FeedMessagesInvalidate(_id));
if (history->lastMessageKnown()) {
if (const auto last = history->lastMessage()) {
if (justUpdateLastMessage(last)) {
updateChatListEntry();
}
}
} else if (lastMessageKnown()) {
_parent->session().api().requestDialogEntry(history);
}
if (unreadCountKnown()) {
if (history->unreadCountKnown()) {
// If history unreadCount is known that means that we've
// already had the channel information and if it was in the
// feed already (not yet known) it wouldn't get here.
// That means here we get if we add a new channel to feed.
if (const auto count = history->unreadCount()) {
unreadCountChanged(count, history->mute() ? count : 0);
}
} else if (!_settingChannels) {
_parent->session().api().requestDialogEntry(this);
}
}
if (invisible && _channels.size() > 1) {
updateChatListExistence();
for (const auto history : _channels) {
history->updateChatListExistence();
}
} else {
history->updateChatListExistence();
}
_parent->notifyFeedUpdated(this, FeedUpdateFlag::Channels);
}
}
void Feed::unregisterOne(not_null<ChannelData*> channel) {
const auto history = App::history(channel);
const auto i = ranges::remove(_channels, history);
if (i != end(_channels)) {
const auto visible = (_channels.size() > 1);
_channels.erase(i, end(_channels));
_parent->session().storage().remove(
Storage::FeedMessagesRemoveAll(_id, channel->bareId()));
if (lastMessageKnown()) {
if (const auto last = lastMessage()) {
if (last->history() == history) {
recountLastMessage();
}
}
}
if (unreadCountKnown()) {
if (history->unreadCountKnown()) {
if (const auto delta = -history->unreadCount()) {
unreadCountChanged(delta, history->mute() ? delta : 0);
}
} else {
_parent->session().api().requestDialogEntry(this);
}
}
if (visible && _channels.size() < 2) {
updateChatListExistence();
for (const auto history : _channels) {
history->updateChatListExistence();
}
} else {
history->updateChatListExistence();
}
_parent->notifyFeedUpdated(this, FeedUpdateFlag::Channels);
}
}
void Feed::updateLastMessage(not_null<HistoryItem*> item) {
if (justUpdateLastMessage(item)) {
if (_lastMessage && *_lastMessage) {
setChatsListDate(ItemDateTime(*_lastMessage));
}
}
}
void Feed::loadUserpic() {
constexpr auto kPaintUserpicsCount = 4;
auto load = kPaintUserpicsCount;
for (const auto channel : _channels) {
channel->peer->loadUserpic();
if (!--load) {
break;
}
}
}
void Feed::paintUserpic(
Painter &p,
int x,
int y,
int size) const {
const auto small = (size - st::lineWidth) / 2;
const auto delta = size - small;
auto index = 0;
for (const auto channel : _channels) {
channel->peer->paintUserpic(p, x, y, small);
switch (++index) {
case 1:
case 3: x += delta; break;
case 2: x -= delta; y += delta; break;
case 4: return;
}
}
}
const std::vector<not_null<History*>> &Feed::channels() const {
return _channels;
}
int32 Feed::channelsHash() const {
const auto ordered = ranges::view::all(
_channels
) | ranges::view::transform([](not_null<History*> history) {
return history->peer->bareId();
}) | ranges::to_vector | ranges::action::sort;
return Api::CountHash(ordered);
}
bool Feed::channelsLoaded() const {
return _channelsLoaded;
}
void Feed::setChannelsLoaded(bool loaded) {
if (_channelsLoaded != loaded) {
_channelsLoaded = loaded;
_parent->notifyFeedUpdated(this, FeedUpdateFlag::Channels);
}
}
void Feed::setChannels(std::vector<not_null<ChannelData*>> channels) {
const auto remove = ranges::view::all(
_channels
) | ranges::view::transform([](not_null<History*> history) {
return not_null<ChannelData*>(history->peer->asChannel());
}) | ranges::view::filter([&](not_null<ChannelData*> channel) {
return !base::contains(channels, channel);
}) | ranges::to_vector;
const auto add = ranges::view::all(
channels
) | ranges::view::filter([&](not_null<ChannelData*> channel) {
return ranges::find(
_channels,
channel.get(),
[](auto history) { return history->peer->asChannel(); }
) == end(_channels);
}) | ranges::view::transform([](ChannelData *channel) {
return not_null<ChannelData*>(channel);
}) | ranges::to_vector;
changeChannelsList(add, remove);
setChannelsLoaded(true);
}
void Feed::changeChannelsList(
const std::vector<not_null<ChannelData*>> &add,
const std::vector<not_null<ChannelData*>> &remove) {
_settingChannels = true;
const auto restore = gsl::finally([&] { _settingChannels = false; });
for (const auto channel : remove) {
channel->clearFeed();
}
// We assume the last message was correct before requesting the list.
// So we save it and don't allow channels from the list to change it.
// After that we restore it.
const auto oldLastMessage = base::take(_lastMessage);
for (const auto channel : add) {
_lastMessage = base::none;
channel->setFeed(this);
}
_lastMessage = oldLastMessage;
}
bool Feed::justUpdateLastMessage(not_null<HistoryItem*> item) {
if (!_lastMessage) {
return false;
} else if (*_lastMessage
&& item->position() <= (*_lastMessage)->position()) {
return false;
}
_lastMessage = item;
return true;
}
void Feed::messageRemoved(not_null<HistoryItem*> item) {
if (lastMessage() == item) {
recountLastMessage();
}
}
void Feed::historyCleared(not_null<History*> history) {
if (const auto last = lastMessage()) {
if (last->history() == history) {
messageRemoved(last);
}
}
}
void Feed::recountLastMessage() {
_lastMessage = base::none;
for (const auto history : _channels) {
if (!history->lastMessageKnown()) {
_parent->session().api().requestDialogEntry(this);
return;
}
}
setLastMessageFromChannels();
}
void Feed::setLastMessageFromChannels() {
_lastMessage = nullptr;
for (const auto history : _channels) {
if (const auto last = history->lastMessage()) {
justUpdateLastMessage(last);
}
}
updateChatsListDate();
}
void Feed::updateChatsListDate() {
if (_lastMessage && *_lastMessage) {
setChatsListDate(ItemDateTime(*_lastMessage));
}
}
HistoryItem *Feed::lastMessage() const {
return _lastMessage ? *_lastMessage : nullptr;
}
bool Feed::lastMessageKnown() const {
return !!_lastMessage;
}
int Feed::unreadCount() const {
return _unreadCount ? *_unreadCount : 0;
}
rpl::producer<int> Feed::unreadCountValue() const {
return rpl::single(
unreadCount()
) | rpl::then(_unreadCountChanges.events());
}
bool Feed::unreadCountKnown() const {
return !!_unreadCount;
}
// #feed
//void Feed::applyDialog(const MTPDdialogFeed &data) {
// const auto addChannel = [&](ChannelId channelId) {
// if (const auto channel = App::channelLoaded(channelId)) {
// channel->setFeed(this);
// }
// };
// for (const auto &channelId : data.vfeed_other_channels.v) {
// addChannel(channelId.v);
// }
//
// _lastMessage = nullptr;
// if (const auto peerId = peerFromMTP(data.vpeer)) {
// if (const auto channelId = peerToChannel(peerId)) {
// addChannel(channelId);
// const auto fullId = FullMsgId(channelId, data.vtop_message.v);
// if (const auto item = App::histItemById(fullId)) {
// justUpdateLastMessage(item);
// }
// }
// }
// updateChatsListDate();
//
// setUnreadCounts(
// data.vunread_count.v,
// data.vunread_muted_count.v);
// if (data.has_read_max_position()) {
// setUnreadPosition(FeedPositionFromMTP(data.vread_max_position));
// }
//}
void Feed::changedInChatListHook(Dialogs::Mode list, bool added) {
if (list == Dialogs::Mode::All && unreadCount()) {
const auto mutedCount = _unreadMutedCount;
const auto nonMutedCount = unreadCount() - mutedCount;
const auto mutedDelta = added ? mutedCount : -mutedCount;
const auto nonMutedDelta = added ? nonMutedCount : -nonMutedCount;
App::histories().unreadIncrement(nonMutedDelta, false);
App::histories().unreadIncrement(mutedDelta, true);
}
}
void Feed::setUnreadCounts(int unreadNonMutedCount, int unreadMutedCount) {
if (unreadCountKnown()
&& (*_unreadCount == unreadNonMutedCount + unreadMutedCount)
&& (_unreadMutedCount == unreadMutedCount)) {
return;
}
const auto unreadNonMutedCountDelta = _unreadCount | [&](int count) {
return unreadNonMutedCount - (count - _unreadMutedCount);
};
const auto unreadMutedCountDelta = _unreadCount | [&](int count) {
return unreadMutedCount - _unreadMutedCount;
};
_unreadCount = unreadNonMutedCount + unreadMutedCount;
_unreadMutedCount = unreadMutedCount;
_unreadCountChanges.fire(unreadCount());
updateChatListEntry();
if (inChatList(Dialogs::Mode::All)) {
App::histories().unreadIncrement(
unreadNonMutedCountDelta ? *unreadNonMutedCountDelta : unreadNonMutedCount,
false);
App::histories().unreadIncrement(
unreadMutedCountDelta ? *unreadMutedCountDelta : unreadMutedCount,
true);
}
}
void Feed::setUnreadPosition(const MessagePosition &position) {
if (_unreadPosition.current() < position) {
_unreadPosition = position;
}
}
void Feed::unreadCountChanged(
int unreadCountDelta,
int mutedCountDelta) {
if (!unreadCountKnown()) {
return;
}
accumulate_max(unreadCountDelta, -*_unreadCount);
*_unreadCount += unreadCountDelta;
mutedCountDelta = snap(
mutedCountDelta,
-_unreadMutedCount,
*_unreadCount - _unreadMutedCount);
_unreadMutedCount += mutedCountDelta;
_unreadCountChanges.fire(unreadCount());
updateChatListEntry();
if (inChatList(Dialogs::Mode::All)) {
App::histories().unreadIncrement(
unreadCountDelta,
false);
App::histories().unreadMuteChanged(mutedCountDelta, true);
}
}
MessagePosition Feed::unreadPosition() const {
return _unreadPosition.current();
}
rpl::producer<MessagePosition> Feed::unreadPositionChanges() const {
return _unreadPosition.changes();
}
bool Feed::toImportant() const {
return false; // TODO feeds workmode
}
bool Feed::shouldBeInChatList() const {
return _channels.size() > 1;
}
int Feed::chatListUnreadCount() const {
return unreadCount();
}
bool Feed::chatListMutedBadge() const {
return _unreadCount ? (*_unreadCount <= _unreadMutedCount) : false;
}
HistoryItem *Feed::chatsListItem() const {
return lastMessage();
}
const QString &Feed::chatsListName() const {
return _name;
}
const base::flat_set<QString> &Feed::chatsListNameWords() const {
return _nameWords;
}
const base::flat_set<QChar> &Feed::chatsListFirstLetters() const {
return _nameFirstLetters;
}
} // namespace Data