56 lines
1.3 KiB
C++
56 lines
1.3 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 "storage/storage_user_photos.h"
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#include "base/weak_ptr.h"
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class UserData;
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namespace Main {
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class Session;
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} // namespace Main
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class UserPhotosSlice final : public AbstractSparseIds<std::deque<PhotoId>> {
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public:
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using Key = Storage::UserPhotosKey;
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UserPhotosSlice(Key key);
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UserPhotosSlice(
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Key key,
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std::deque<PhotoId> &&ids,
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std::optional<int> fullCount,
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std::optional<int> skippedBefore,
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std::optional<int> skippedAfter);
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std::optional<int> distance(const Key &a, const Key &b) const;
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const Key &key() const { return _key; }
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private:
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Key _key;
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friend class UserPhotosSliceBuilder;
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};
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rpl::producer<UserPhotosSlice> UserPhotosViewer(
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not_null<Main::Session*> session,
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UserPhotosSlice::Key key,
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int limitBefore,
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int limitAfter);
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rpl::producer<UserPhotosSlice> UserPhotosReversedViewer(
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not_null<Main::Session*> session,
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UserPhotosSlice::Key key,
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int limitBefore,
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int limitAfter);
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[[nodiscard]] std::optional<PhotoId> SyncUserFallbackPhotoViewer(
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not_null<UserData*> user);
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