downloadrequest.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 
#ifndef BACKENDS_CLOUD_DOWNLOADREQUEST_H
#define BACKENDS_CLOUD_DOWNLOADREQUEST_H
 
#include "backends/networking/http/request.h"
#include "backends/networking/http/networkreadstream.h"
#include "backends/cloud/storage.h"
#include "common/file.h"
 
namespace Cloud {
 
#define DOWNLOAD_REQUEST_BUFFER_SIZE 1 * 1024 * 1024
 
class DownloadRequest: public Networking::Request {
    Storage::BoolCallback _boolCallback;
    Common::DumpFile *_localFile;
    Common::String _remoteFileId;
    Storage *_storage;
    Networking::NetworkReadStream *_remoteFileStream;
    Request *_workingRequest;
    bool _ignoreCallback;
    byte *_buffer;
 
    void start();
    void streamCallback(const Networking::NetworkReadStreamResponse &response);
    void streamErrorCallback(const Networking::ErrorResponse &error);
    void finishDownload(bool success);
    void finishError(const Networking::ErrorResponse &error, Networking::RequestState state = Networking::FINISHED) override;
 
public:
    DownloadRequest(Storage *storage, Storage::BoolCallback callback, Networking::ErrorCallback ecb, const Common::String &remoteFileId, Common::DumpFile *dumpFile);
    ~DownloadRequest() override;
 
    void handle() override;
    void restart() override;
 
    double getProgress() const;
};
 
} // End of namespace Cloud
 
#endif