52 lines
1.1 KiB
C++
52 lines
1.1 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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#pragma once
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#include "data/data_messages.h"
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#include "base/weak_ptr.h"
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namespace Data {
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struct PinnedAroundId {
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std::vector<MsgId> ids;
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std::optional<int> skippedBefore;
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std::optional<int> skippedAfter;
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std::optional<int> fullCount;
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};
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class PinnedMessages final : public base::has_weak_ptr {
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public:
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explicit PinnedMessages(ChannelId channelId);
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[[nodiscard]] bool empty() const;
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[[nodiscard]] MsgId topId() const;
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[[nodiscard]] rpl::producer<PinnedAroundId> viewer(
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MsgId aroundId,
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int limit) const;
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void add(MsgId messageId);
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void add(
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std::vector<MsgId> &&ids,
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MsgRange range,
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std::optional<int> count);
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void remove(MsgId messageId);
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void setTopId(MsgId messageId);
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void clearLessThanId(MsgId messageId);
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private:
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[[nodiscard]] MessagePosition position(MsgId id) const;
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MessagesList _list;
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ChannelId _channelId = 0;
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};
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} // namespace Data
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