bearermonitor.cpp Example File

 /****************************************************************************
 **
 ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the examples of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:BSD$
 ** You may use this file under the terms of the BSD license as follows:
 **
 ** "Redistribution and use in source and binary forms, with or without
 ** modification, are permitted provided that the following conditions are
 ** met:
 **   * Redistributions of source code must retain the above copyright
 **     notice, this list of conditions and the following disclaimer.
 **   * Redistributions in binary form must reproduce the above copyright
 **     notice, this list of conditions and the following disclaimer in
 **     the documentation and/or other materials provided with the
 **     distribution.
 **   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
 **     the names of its contributors may be used to endorse or promote
 **     products derived from this software without specific prior written
 **     permission.
 **
 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include "bearermonitor.h"
 #include "sessionwidget.h"

 #include <QtCore/QDebug>

 #ifdef Q_OS_WIN
 #include <winsock2.h>
 #undef interface

 #ifndef NS_NLA
 #define NS_NLA 15
 #endif
 #endif

 BearerMonitor::BearerMonitor(QWidget *parent)
 :   QWidget(parent)
 {
     setupUi(this);
 #ifdef MAEMO_UI
     newSessionButton->hide();
     deleteSessionButton->hide();
 #else
     delete tabWidget->currentWidget();
     sessionGroup->hide();
 #endif
 #if defined(Q_OS_SYMBIAN) || defined(Q_OS_WINCE) || defined(MAEMO_UI) || defined(Q_WS_SIMULATOR)
     setWindowState(Qt::WindowMaximized);
 #endif
     updateConfigurations();
     onlineStateChanged(!manager.allConfigurations(QNetworkConfiguration::Active).isEmpty());
     QNetworkConfiguration defaultConfiguration = manager.defaultConfiguration();
     for (int i = 0; i < treeWidget->topLevelItemCount(); ++i) {
         QTreeWidgetItem *item = treeWidget->topLevelItem(i);

         if (item->data(0, Qt::UserRole).toString() == defaultConfiguration.identifier()) {
             treeWidget->setCurrentItem(item);
             showConfigurationFor(item);
             break;
         }
     }
     connect(&manager, SIGNAL(onlineStateChanged(bool)), this ,SLOT(onlineStateChanged(bool)));
     connect(&manager, SIGNAL(configurationAdded(const QNetworkConfiguration&)),
             this, SLOT(configurationAdded(const QNetworkConfiguration&)));
     connect(&manager, SIGNAL(configurationRemoved(const QNetworkConfiguration&)),
             this, SLOT(configurationRemoved(const QNetworkConfiguration&)));
     connect(&manager, SIGNAL(configurationChanged(const QNetworkConfiguration&)),
             this, SLOT(configurationChanged(const QNetworkConfiguration)));
     connect(&manager, SIGNAL(updateCompleted()), this, SLOT(updateConfigurations()));

 #if defined(Q_OS_WIN)
     connect(registerButton, SIGNAL(clicked()), this, SLOT(registerNetwork()));
     connect(unregisterButton, SIGNAL(clicked()), this, SLOT(unregisterNetwork()));
 #else
     nlaGroup->hide();
 #endif

     connect(treeWidget, SIGNAL(itemActivated(QTreeWidgetItem*,int)),
             this, SLOT(createSessionFor(QTreeWidgetItem*)));

     connect(treeWidget, SIGNAL(currentItemChanged(QTreeWidgetItem*,QTreeWidgetItem*)),
             this, SLOT(showConfigurationFor(QTreeWidgetItem*)));

     connect(newSessionButton, SIGNAL(clicked()),
             this, SLOT(createNewSession()));
 #ifndef MAEMO_UI
     connect(deleteSessionButton, SIGNAL(clicked()),
             this, SLOT(deleteSession()));
 #endif
     connect(scanButton, SIGNAL(clicked()),
             this, SLOT(performScan()));

     // Just in case update all configurations so that all
     // configurations are up to date.
     manager.updateConfigurations();
 }

 BearerMonitor::~BearerMonitor()
 {
 }

 static void updateItem(QTreeWidgetItem *item, const QNetworkConfiguration &config)
 {
     item->setText(0, config.name());
     item->setData(0, Qt::UserRole, config.identifier());

     QFont font = item->font(1);
     font.setBold((config.state() & QNetworkConfiguration::Active) == QNetworkConfiguration::Active);
     item->setFont(0, font);
 }

 void BearerMonitor::configurationAdded(const QNetworkConfiguration &config, QTreeWidgetItem *parent)
 {
     QTreeWidgetItem *item = new QTreeWidgetItem;
     updateItem(item, config);

     if (parent)
         parent->addChild(item);
     else
         treeWidget->addTopLevelItem(item);

     if (config.type() == QNetworkConfiguration::ServiceNetwork) {
         foreach (const QNetworkConfiguration &child, config.children())
             configurationAdded(child, item);
     }
 }

 void BearerMonitor::configurationRemoved(const QNetworkConfiguration &config)
 {
     for (int i = 0; i < treeWidget->topLevelItemCount(); ++i) {
         QTreeWidgetItem *item = treeWidget->topLevelItem(i);

         if (item->data(0, Qt::UserRole).toString() == config.identifier()) {
             delete item;
             break;
         }
     }
 }

 void BearerMonitor::configurationChanged(const QNetworkConfiguration &config)
 {
     for (int i = 0; i < treeWidget->topLevelItemCount(); ++i) {
         QTreeWidgetItem *item = treeWidget->topLevelItem(i);

         if (item->data(0, Qt::UserRole).toString() == config.identifier()) {
             updateItem(item, config);

             if (config.type() == QNetworkConfiguration::ServiceNetwork)
                 updateSnapConfiguration(item, config);

             if (item == treeWidget->currentItem())
                 showConfigurationFor(item);

             break;
         }
     }
 }

 void BearerMonitor::updateSnapConfiguration(QTreeWidgetItem *parent, const QNetworkConfiguration &snap)
 {
     QMap<QString, QTreeWidgetItem *> itemMap;
     foreach (QTreeWidgetItem *item, parent->takeChildren())
         itemMap.insert(item->data(0, Qt::UserRole).toString(), item);

     QList<QNetworkConfiguration> allConfigurations = snap.children();

     while (!allConfigurations.isEmpty()) {
         QNetworkConfiguration config = allConfigurations.takeFirst();

         QTreeWidgetItem *item = itemMap.take(config.identifier());
         if (item) {
             updateItem(item, config);

             parent->addChild(item);

             if (config.type() == QNetworkConfiguration::ServiceNetwork)
                 updateSnapConfiguration(item, config);
         } else {
             configurationAdded(config, parent);
         }
     }

     qDeleteAll(itemMap);
 }

 void BearerMonitor::updateConfigurations()
 {
     progressBar->hide();
     scanButton->show();

     // Just in case update online state, on Symbian platform
     // WLAN scan needs to be triggered initially to have their true state.
     onlineStateChanged(manager.isOnline());

     QList<QTreeWidgetItem *> items = treeWidget->findItems(QLatin1String("*"), Qt::MatchWildcard);
     QMap<QString, QTreeWidgetItem *> itemMap;
     while (!items.isEmpty()) {
         QTreeWidgetItem *item = items.takeFirst();
         itemMap.insert(item->data(0, Qt::UserRole).toString(), item);
     }

     QNetworkConfiguration defaultConfiguration = manager.defaultConfiguration();
     QTreeWidgetItem *defaultItem = itemMap.take(defaultConfiguration.identifier());

     if (defaultItem) {
         updateItem(defaultItem, defaultConfiguration);

         if (defaultConfiguration.type() == QNetworkConfiguration::ServiceNetwork)
             updateSnapConfiguration(defaultItem, defaultConfiguration);
     } else {
         configurationAdded(defaultConfiguration);
     }

     QList<QNetworkConfiguration> allConfigurations = manager.allConfigurations();

     while (!allConfigurations.isEmpty()) {
         QNetworkConfiguration config = allConfigurations.takeFirst();

         if (config.identifier() == defaultConfiguration.identifier())
             continue;

         QTreeWidgetItem *item = itemMap.take(config.identifier());
         if (item) {
             updateItem(item, config);

             if (config.type() == QNetworkConfiguration::ServiceNetwork)
                 updateSnapConfiguration(item, config);
         } else {
             configurationAdded(config);
         }
     }

     qDeleteAll(itemMap);
 }

 void BearerMonitor::onlineStateChanged(bool isOnline)
 {
     if (isOnline)
         onlineState->setText(tr("Online"));
     else
         onlineState->setText(tr("Offline"));
 }

 #if defined(Q_OS_WIN)
 void BearerMonitor::registerNetwork()
 {
     QTreeWidgetItem *item = treeWidget->currentItem();
     if (!item) return;

     QNetworkConfiguration configuration =
         manager.configurationFromIdentifier(item->data(0, Qt::UserRole).toString());

     const QString name = configuration.name();

     qDebug() << "Registering" << name << "with system";

     WSAQUERYSET networkInfo;
     memset(&networkInfo, 0, sizeof(networkInfo));
     networkInfo.dwSize = sizeof(networkInfo);
     networkInfo.lpszServiceInstanceName = (LPWSTR)name.utf16();
     networkInfo.dwNameSpace = NS_NLA;

     if (WSASetService(&networkInfo, RNRSERVICE_REGISTER, 0) == SOCKET_ERROR)
         qDebug() << "WSASetService(RNRSERVICE_REGISTER) returned" << WSAGetLastError();
 }

 void BearerMonitor::unregisterNetwork()
 {
     QTreeWidgetItem *item = treeWidget->currentItem();
     if (!item) return;

     QNetworkConfiguration configuration =
         manager.configurationFromIdentifier(item->data(0, Qt::UserRole).toString());

     const QString name = configuration.name();

     qDebug() << "Unregistering" << name << "with system";

     WSAQUERYSET networkInfo;
     memset(&networkInfo, 0, sizeof(networkInfo));
     networkInfo.dwSize = sizeof(networkInfo);
     networkInfo.lpszServiceInstanceName = (LPWSTR)name.utf16();
     networkInfo.dwNameSpace = NS_NLA;

     if (WSASetService(&networkInfo, RNRSERVICE_DELETE, 0) == SOCKET_ERROR)
         qDebug() << "WSASetService(RNRSERVICE_DELETE) returned" << WSAGetLastError();
 }
 #endif

 void BearerMonitor::showConfigurationFor(QTreeWidgetItem *item)
 {
     QString identifier;

     if (item)
         identifier = item->data(0, Qt::UserRole).toString();

     QNetworkConfiguration conf = manager.configurationFromIdentifier(identifier);

     switch (conf.state()) {
     case QNetworkConfiguration::Active:
         configurationState->setText(tr("Active"));
         break;
     case QNetworkConfiguration::Discovered:
         configurationState->setText(tr("Discovered"));
         break;
     case QNetworkConfiguration::Defined:
         configurationState->setText(tr("Defined"));
         break;
     case QNetworkConfiguration::Undefined:
         configurationState->setText(tr("Undefined"));
         break;
     default:
         configurationState->setText(QString());
     }

     switch (conf.type()) {
     case QNetworkConfiguration::InternetAccessPoint:
         configurationType->setText(tr("Internet Access Point"));
         break;
     case QNetworkConfiguration::ServiceNetwork:
         configurationType->setText(tr("Service Network"));
         break;
     case QNetworkConfiguration::UserChoice:
         configurationType->setText(tr("User Choice"));
         break;
     case QNetworkConfiguration::Invalid:
         configurationType->setText(tr("Invalid"));
         break;
     default:
         configurationType->setText(QString());
     }

     switch (conf.purpose()) {
     case QNetworkConfiguration::UnknownPurpose:
         configurationPurpose->setText(tr("Unknown"));
         break;
     case QNetworkConfiguration::PublicPurpose:
         configurationPurpose->setText(tr("Public"));
         break;
     case QNetworkConfiguration::PrivatePurpose:
         configurationPurpose->setText(tr("Private"));
         break;
     case QNetworkConfiguration::ServiceSpecificPurpose:
         configurationPurpose->setText(tr("Service Specific"));
         break;
     default:
         configurationPurpose->setText(QString());
     }

     configurationIdentifier->setText(conf.identifier());

     configurationRoaming->setText(conf.isRoamingAvailable() ? tr("Available") : tr("Not available"));

     configurationChildren->setText(QString::number(conf.children().count()));

     configurationName->setText(conf.name());
 }

 void BearerMonitor::createSessionFor(QTreeWidgetItem *item)
 {
     const QString identifier = item->data(0, Qt::UserRole).toString();

     QNetworkConfiguration conf = manager.configurationFromIdentifier(identifier);

     SessionWidget *session = new SessionWidget(conf);

     tabWidget->addTab(session, conf.name());

 #ifndef MAEMO_UI
     sessionGroup->show();
 #endif

     sessionWidgets.append(session);
 }

 void BearerMonitor::createNewSession()
 {
     QTreeWidgetItem *item = treeWidget->currentItem();
     if (!item) return;

     createSessionFor(item);
 }

 #ifndef MAEMO_UI
 void BearerMonitor::deleteSession()
 {
     SessionWidget *session = qobject_cast<SessionWidget *>(tabWidget->currentWidget());
     if (session) {
         sessionWidgets.removeAll(session);

         delete session;

         if (tabWidget->count() == 0)
             sessionGroup->hide();
     }
 }
 #endif

 void BearerMonitor::performScan()
 {
     scanButton->hide();
     progressBar->show();
     manager.updateConfigurations();
 }