89 lines
2.3 KiB
C++
89 lines
2.3 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_abstract_sparse_ids.h"
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#include "history/history_item.h"
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class PeerData;
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namespace Data {
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class Session;
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struct FileOrigin;
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class SavedMusic final {
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public:
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explicit SavedMusic(not_null<Session*> owner);
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~SavedMusic();
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[[nodiscard]] static bool Supported(PeerId peerId);
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[[nodiscard]] bool countKnown(PeerId peerId) const;
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[[nodiscard]] int count(PeerId peerId) const;
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[[nodiscard]] const std::vector<not_null<HistoryItem*>> &list(
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PeerId peerId) const;
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void loadMore(PeerId peerId);
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[[nodiscard]] rpl::producer<PeerId> changed() const;
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void loadIds();
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[[nodiscard]] bool has(not_null<DocumentData*> document) const;
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void save(not_null<DocumentData*> document, FileOrigin origin);
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void remove(not_null<DocumentData*> document);
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void reorder(int oldPosition, int newPosition);
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void apply(not_null<UserData*> user, const MTPDocument *last);
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void clear();
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private:
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using OwnedItem = std::unique_ptr<HistoryItem, HistoryItem::Destroyer>;
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struct Entry {
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base::flat_map<MsgId, not_null<DocumentData*>> musicIdFromMsgId;
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base::flat_map<not_null<DocumentData*>, OwnedItem> musicIdToMsg;
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std::vector<not_null<HistoryItem*>> list;
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History *history = nullptr;
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mtpRequestId requestId = 0;
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int total = -1;
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bool loaded = false;
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bool reloading = false;
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};
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void loadMore(PeerId peerId, bool reload);
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[[nodiscard]] Entry *lookupEntry(PeerId peerId);
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[[nodiscard]] const Entry *lookupEntry(PeerId peerId) const;
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[[nodiscard]] uint64 firstPageHash(const Entry &entry) const;
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[[nodiscard]] not_null<HistoryItem*> musicIdToMsg(
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PeerId peerId,
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Entry &entry,
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not_null<DocumentData*> id);
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const not_null<Session*> _owner;
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std::vector<DocumentId> _myIds;
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crl::time _lastReceived = 0;
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mtpRequestId _loadIdsRequest = 0;
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std::unordered_map<PeerId, Entry> _entries;
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rpl::event_stream<PeerId> _changed;
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};
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using SavedMusicSlice = AbstractSparseIds<
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std::vector<not_null<HistoryItem*>>>;
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[[nodiscard]] rpl::producer<SavedMusicSlice> SavedMusicList(
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not_null<PeerData*> peer,
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HistoryItem *aroundId,
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int limit);
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} // namespace Data
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