tdesktop/Telegram/SourceFiles/data/data_replies_list.h

81 lines
2.0 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
*/
#pragma once
#include "base/weak_ptr.h"
class History;
class HistoryService;
namespace Data {
class Histories;
struct MessagePosition;
struct MessagesSlice;
struct MessageUpdate;
class RepliesList final : public base::has_weak_ptr {
public:
RepliesList(not_null<History*> history, MsgId rootId);
~RepliesList();
[[nodiscard]] rpl::producer<MessagesSlice> source(
MessagePosition aroundId,
int limitBefore,
int limitAfter);
[[nodiscard]] rpl::producer<int> fullCount() const;
[[nodiscard]] std::optional<int> fullUnreadCountAfter(
MsgId readTillId,
MsgId wasReadTillId,
std::optional<int> wasUnreadCountAfter) const;
private:
struct Viewer;
HistoryItem *lookupRoot();
[[nodiscard]] Histories &histories();
[[nodiscard]] rpl::producer<MessagesSlice> sourceFromServer(
MessagePosition aroundId,
int limitBefore,
int limitAfter);
void appendLocalMessages(MessagesSlice &slice);
[[nodiscard]] bool buildFromData(not_null<Viewer*> viewer);
[[nodiscard]] bool applyUpdate(
not_null<Viewer*> viewer,
const MessageUpdate &update);
void injectRootMessageAndReverse(not_null<Viewer*> viewer);
void injectRootMessage(not_null<Viewer*> viewer);
void injectRootDivider(
not_null<HistoryItem*> root,
not_null<MessagesSlice*> slice);
bool processMessagesIsEmpty(const MTPmessages_Messages &result);
void loadAround(MsgId id);
void loadBefore();
void loadAfter();
const not_null<History*> _history;
const MsgId _rootId = 0;
std::vector<MsgId> _list;
std::optional<int> _skippedBefore;
std::optional<int> _skippedAfter;
rpl::variable<std::optional<int>> _fullCount;
rpl::event_stream<> _partLoaded;
std::optional<MsgId> _loadingAround;
HistoryService *_divider = nullptr;
bool _dividerWithComments = false;
int _beforeId = 0;
int _afterId = 0;
};
} // namespace Data