mirror of
https://github.com/telegramdesktop/tdesktop
synced 2025-04-01 23:00:58 +00:00
121 lines
2.7 KiB
C++
121 lines
2.7 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "data/data_feed.h"
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#include "dialogs/dialogs_key.h"
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#include "history/history.h"
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#include "history/history_item.h"
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namespace Data {
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MessagePosition FeedPositionFromMTP(const MTPFeedPosition &position) {
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Expects(position.type() == mtpc_feedPosition);
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const auto &data = position.c_feedPosition();
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return MessagePosition(data.vdate.v, FullMsgId(
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peerToChannel(peerFromMTP(data.vpeer)),
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data.vid.v));
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}
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Feed::Feed(FeedId id)
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: Entry(this)
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, _id(id) {
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}
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void Feed::registerOne(not_null<ChannelData*> channel) {
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const auto history = App::history(channel);
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if (!base::contains(_channels, history)) {
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_channels.push_back(history);
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if (history->lastMsg) {
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updateLastMessage(history->lastMsg);
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}
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}
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}
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void Feed::unregisterOne(not_null<ChannelData*> channel) {
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const auto history = App::history(channel);
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_channels.erase(ranges::remove(_channels, history), end(_channels));
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if (_lastMessage->history() == history) {
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messageRemoved(_lastMessage);
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}
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}
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void Feed::updateLastMessage(not_null<HistoryItem*> item) {
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if (justSetLastMessage(item)) {
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setChatsListDate(_lastMessage->date);
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}
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}
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void Feed::loadUserpic() {
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constexpr auto kPaintUserpicsCount = 4;
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auto load = kPaintUserpicsCount;
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for (const auto channel : _channels) {
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channel->peer->loadUserpic();
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if (!--load) {
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break;
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}
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}
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}
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void Feed::paintUserpic(
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Painter &p,
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int x,
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int y,
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int size) const {
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const auto small = (size - st::lineWidth) / 2;
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const auto delta = size - small;
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auto index = 0;
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for (const auto channel : _channels) {
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channel->peer->paintUserpic(p, x, y, small);
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switch (++index) {
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case 1:
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case 3: x += delta; break;
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case 2: x -= delta; y += delta; break;
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}
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}
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}
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bool Feed::justSetLastMessage(not_null<HistoryItem*> item) {
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if (_lastMessage && item->position() <= _lastMessage->position()) {
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return false;
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}
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_lastMessage = item;
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return true;
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}
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void Feed::messageRemoved(not_null<HistoryItem*> item) {
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if (_lastMessage == item) {
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recountLastMessage();
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}
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}
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void Feed::historyCleared(not_null<History*> history) {
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if (_lastMessage->history() == history) {
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recountLastMessage();
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}
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}
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void Feed::recountLastMessage() {
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_lastMessage = nullptr;
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for (const auto history : _channels) {
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if (const auto last = history->lastMsg) {
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justSetLastMessage(last);
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}
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}
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if (_lastMessage) {
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setChatsListDate(_lastMessage->date);
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}
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}
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void Feed::setUnreadCounts(int unreadCount, int unreadMutedCount) {
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_unreadCount = unreadCount;
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_unreadMutedCount = unreadMutedCount;
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}
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} // namespace Data
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