tomFlowee
3a6e0470a5
Processing can take several seconds on a mobile, so we should do that in its own thread in order to make the progress icon continue rotating.
95 lines
2.7 KiB
C++
95 lines
2.7 KiB
C++
/*
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* This file is part of the Flowee project
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* Copyright (C) 2024 Tom Zander <tom@flowee.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef BLOCKHEADERSCHECKER_H
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#define BLOCKHEADERSCHECKER_H
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#include <QFile>
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#include <QNetworkAccessManager>
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#include <QObject>
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class BlockHeadersChecker : public QObject
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{
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Q_OBJECT
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Q_PROPERTY(int wantedHeight READ wantedHeight WRITE setWantedHeight NOTIFY wantedHeightChanged FINAL)
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Q_PROPERTY(int totalDownload READ totalDownload NOTIFY totalDownloadChanged FINAL)
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Q_PROPERTY(int bytesDownloaded READ bytesDownloaded NOTIFY bytesDownloadedChanged FINAL)
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Q_PROPERTY(Status status READ status NOTIFY statusChanged FINAL)
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public:
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BlockHeadersChecker(QObject *parent = nullptr);
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enum Status {
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Unset,
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NoDownloadNeeded,
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Checking,
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Downloading,
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Verifying,
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Success,
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DiskFailure,
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NetworkFailure
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};
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Q_ENUM(Status)
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int wantedHeight() const;
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void setWantedHeight(int h);
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/// the download progress in bytes
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void setBytesDownloaded(int count);
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int bytesDownloaded();
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/// the download target in bytes
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int totalDownload() const;
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void setTotalDownload(int newTotalDownload);
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void setStatus(Status newStatus);
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Status status() const;
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Q_INVOKABLE void restart();
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signals:
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void wantedHeightChanged();
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void bytesDownloadedChanged();
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void totalDownloadChanged();
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void statusChanged();
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// helper signal for threading.
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void finishUp(Status status);
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private slots:
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void startChecking();
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void headerReturned();
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void downloadFinished();
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void onBytesDownloaded();
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private:
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void processNewHeaders();
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int m_wantedHeight = 0;
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int m_checkpoint = 0; // start download at checkpoint-height
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int m_downloadTo = 0; // download to this point (we have the rest)
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int m_totalDownload = 0;
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int m_bytesDownloaded = 0; // download progress
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QNetworkAccessManager m_network;
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QNetworkReply *m_headerReply = nullptr;
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QNetworkReply *m_downloadReply = nullptr;
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QFile *m_newHeaders = nullptr;
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Status m_status = Unset;
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};
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#endif
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