//! [1]
void DownloadManager::downloadProgress(qint64 bytesReceived, qint64 bytesTotal)
{
// Update the properties with the new progress values
m_progressTotal = bytesTotal;
m_progressValue = bytesReceived;
emit progressTotalChanged();
emit progressValueChanged();
// Calculate the download speed ...
double speed = bytesReceived * 1000.0 / m_downloadTime.elapsed();
QString unit;
if (speed < 1024) {
unit = "bytes/sec";
} else if (speed < 1024 * 1024) {
speed /= 1024;
unit = "kB/s";
} else {
speed /= 1024 * 1024;
unit = "MB/s";
}
// ... and update the progress message.
m_progressMessage = QString("%1 %2").arg(speed, 3, 'f', 1).arg(unit);
emit progressMessageChanged();
}
void AdBlockDownloader::onDownloadProgress(qint64 bytesreceived, qint64 bytestotal)
{
if(!this->_downloading)
{
this->_downloading = true;
emit downloadingChanged();
}
this->_progressvalue = bytesreceived;
if(this->_progresstotal != bytestotal)
{
this->_progresstotal = bytestotal;
emit progressTotalChanged();
}
emit progressValueChanged();
}
//! [2]
void DownloadManager::downloadFinished()
{
// Reset the progress information when the download has finished
m_progressTotal = 0;
m_progressValue = 0;
m_progressMessage.clear();
emit progressValueChanged();
emit progressTotalChanged();
emit progressMessageChanged();
// Close the file where the data have been written
m_output.close();
// Add a status or error message
if (m_currentDownload->error()) {
addErrorMessage(QString("Failed: %1").arg(m_currentDownload->errorString()));
} else if (m_currentDownload->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() == 302) {
m_output.remove();
QUrl redirecturl = m_currentDownload->attribute(QNetworkRequest::RedirectionTargetAttribute).toUrl();
if(redirecturl.isValid() && (redirecturl != m_currentDownload->url())) /* Avoid Fake/Redirect Loop */
{
downloadUrl(redirecturl.toString());
}
} else {
addStatusMessage("Succeeded.");
++m_downloadedCount;
}
/**
* We can't call 'delete m_currentDownload' here, because this method might have been invoked directly as result of a signal
* emission of the network reply object.
*/
m_currentDownload->deleteLater();
m_currentDownload = 0;
emit activeDownloadsChanged();
basename = "";
// Trigger the execution of the next job
startNextDownload();
}
