connectivityhelper.cpp Example Fileflickrdemo/connectivityhelper.cpp /****************************************************************************
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#include "connectivityhelper.h"
#include <QMessageBox>
#include <QWidget>
#include <QTimer>
ConnectivityHelper::ConnectivityHelper(QNetworkSession *session, QWidget *parent) : QObject(parent),
m_session(session)
{
connect(m_session,
SIGNAL(error(QNetworkSession::SessionError)),
this,
SLOT(error(QNetworkSession::SessionError)));
}
void ConnectivityHelper::error(QNetworkSession::SessionError error)
{
if (error == QNetworkSession::UnknownSessionError) {
if (m_session->state() == QNetworkSession::Connecting) {
QMessageBox msgBox(qobject_cast<QWidget *>(parent()));
msgBox.setText("This application requires network access to function.");
msgBox.setInformativeText("Press Cancel to quit the application.");
msgBox.setIcon(QMessageBox::Information);
msgBox.setStandardButtons(QMessageBox::Retry | QMessageBox::Cancel);
msgBox.setDefaultButton(QMessageBox::Retry);
int ret = msgBox.exec();
if (ret == QMessageBox::Retry) {
QTimer::singleShot(0, m_session, SLOT(open()));
} else if (ret == QMessageBox::Cancel) {
emit networkingCancelled();
}
}
} else if (error == QNetworkSession::SessionAbortedError) {
QMessageBox msgBox(qobject_cast<QWidget *>(parent()));
msgBox.setText("Out of range of network.");
msgBox.setInformativeText("Move back into range and press Retry, or press Cancel to quit the application.");
msgBox.setIcon(QMessageBox::Warning);
msgBox.setStandardButtons(QMessageBox::Retry | QMessageBox::Cancel);
msgBox.setDefaultButton(QMessageBox::Retry);
int ret = msgBox.exec();
if (ret == QMessageBox::Retry) {
QTimer::singleShot(0, m_session, SLOT(open()));
} else if (ret == QMessageBox::Cancel) {
emit networkingCancelled();
}
}
}
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