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dbhub: Show download progress and allow canceling downloads

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This commit is contained in:
Martin Kleusberg
2016-10-24 23:56:36 +02:00
parent 4d26624bda
commit fad7246400
2 changed files with 46 additions and 4 deletions
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46
src/RemoteDatabase.cpp
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@@ -9,7 +9,8 @@
#include "FileDialog.h"
RemoteDatabase::RemoteDatabase() :
m_manager(new QNetworkAccessManager)
m_manager(new QNetworkAccessManager),
m_currentReply(nullptr)
{
// TODO Set up SSL configuration here
@@ -42,10 +43,16 @@ void RemoteDatabase::fetchDatabase(const QString& url)
// TODO Set SSL configuration here
// Fetch database
m_manager->get(request);
// Fetch database and save pending reply. Note that we're only supporting one active download here at the moment.
m_currentReply = m_manager->get(request);
// TODO Monitor and show download progress. Also add option to cancel running downloads
// Initialise the progress dialog for this request
m_progress.setWindowModality(Qt::ApplicationModal);
m_progress.setCancelButtonText(tr("Cancel"));
m_progress.setLabelText(tr("Downloading remote database from\n%1.").arg(url));
m_progress.show();
qApp->processEvents();
connect(m_currentReply, &QNetworkReply::downloadProgress, this, &RemoteDatabase::updateProgress);
}
void RemoteDatabase::gotEncrypted(QNetworkReply* /*reply*/)
@@ -79,6 +86,8 @@ void RemoteDatabase::gotReply(QNetworkReply* reply)
}
// Delete reply later, i.e. after returning from this slot function
m_currentReply = nullptr;
m_progress.hide();
reply->deleteLater();
}
@@ -89,5 +98,34 @@ void RemoteDatabase::gotError(QNetworkReply* reply, const QList<QSslError>& erro
QMessageBox::warning(0, qApp->applicationName(), message);
// Delete reply later, i.e. after returning from this slot function
m_progress.hide();
reply->deleteLater();
}
void RemoteDatabase::updateProgress(qint64 bytesReceived, qint64 bytesTotal)
{
// Update progress dialog
if(bytesTotal == -1)
{
// We don't know anything about the current progress, but it's still downloading
m_progress.setMinimum(0);
m_progress.setMaximum(0);
m_progress.setValue(0);
} else if(bytesReceived == bytesTotal) {
// The download has finished
m_progress.hide();
} else {
// It's still downloading and we know the current progress
m_progress.setMinimum(0);
m_progress.setMaximum(bytesTotal);
m_progress.setValue(bytesReceived);
}
// Check if the Cancel button has been pressed
qApp->processEvents();
if(m_currentReply && m_progress.wasCanceled())
{
m_currentReply->abort();
m_progress.hide();
}
}