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84 lines
1.7 KiB
C++
84 lines
1.7 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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#pragma once
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#include "storage/download_manager_mtproto.h"
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namespace Data {
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class PhotoMedia;
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struct FileOrigin;
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class MediaPreload {
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public:
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explicit MediaPreload(Fn<void()> done);
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virtual ~MediaPreload() = default;
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protected:
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void callDone();
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private:
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Fn<void()> _done;
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};
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class PhotoPreload final : public MediaPreload {
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public:
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[[nodiscard]] static bool Should(
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not_null<PhotoData*> photo,
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not_null<PeerData*> context);
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PhotoPreload(
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not_null<PhotoData*> data,
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FileOrigin origin,
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Fn<void()> done);
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~PhotoPreload();
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private:
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void start(FileOrigin origin);
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std::shared_ptr<PhotoMedia> _photo;
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rpl::lifetime _lifetime;
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};
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class VideoPreload final
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: public MediaPreload
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, private Storage::DownloadMtprotoTask {
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public:
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[[nodiscard]] static bool Can(not_null<DocumentData*> video);
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VideoPreload(
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not_null<DocumentData*> video,
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FileOrigin origin,
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Fn<void()> done);
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~VideoPreload();
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private:
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void check();
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void load();
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void done(QByteArray result);
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bool readyToRequest() const override;
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int64 takeNextRequestOffset() override;
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bool feedPart(int64 offset, const QByteArray &bytes) override;
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void cancelOnFail() override;
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bool setWebFileSizeHook(int64 size) override;
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const not_null<DocumentData*> _video;
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base::flat_map<uint32, QByteArray> _parts;
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base::flat_set<int> _requestedOffsets;
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int64 _full = 0;
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int _nextRequestOffset = 0;
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bool _finished = false;
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bool _failed = false;
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};
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} // namespace Data
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