connectionmanager.cpp

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/*
     connectionmanager.cpp - Provides the client side interface to the kde networkstatus daemon

     Copyright (c) 2004      by Will Stephenson <wstephenson@kde.org>

     Kopete    (c) 2004-2007 by the Kopete developers  <kopete-devel@kde.org>

     *************************************************************************
     *                                                                       *
     * This library is free software; you can redistribute it and/or         *
     * modify it under the terms of the GNU Lesser General Public            *
     * License as published by the Free Software Foundation; either          *
     * version 2 of the License, or (at your option) any later version.      *
     *                                                                       *
     *************************************************************************
 */


#include "connectionmanager.h"

#include <kdebug.h>
#include <klocale.h>
#include <kmessagebox.h>

#include "clientiface_stub.h"
#include "networkstatuscommon.h"

// ConnectionManager's private parts
class ConnectionManagerPrivate
{
    public:
        // this holds the currently active state
        ConnectionManager::State m_state;
        ClientIface_stub * m_stub;
        bool m_userInitiatedOnly;
};

// Connection manager itself
ConnectionManager::ConnectionManager( QObject * parent, const char * name ) : DCOPObject( "ConnectionManager" ),QObject( parent )
{
    setObjectName(name);
    d = new ConnectionManagerPrivate;
    
    d->m_stub = new ClientIface_stub( kapp->dcopClient(), "kded", "networkstatus" );
    
    connectDCOPSignal( "kded", "networkstatus", "statusChange(QString,int)", "slotStatusChanged(QString,int)", false );
    d->m_userInitiatedOnly = false;
    initialise();
}

ConnectionManager *ConnectionManager::self()
{
    static ConnectionManager s;
    return &s;
}

void ConnectionManager::initialise()
{
    // determine initial state and set the state object accordingly.
    d->m_state = Inactive;
    updateStatus();
}

void ConnectionManager::updateStatus()
{
    NetworkStatus::EnumStatus daemonStatus = (NetworkStatus::EnumStatus)d->m_stub->status( QString() );
    kDebug() ;
    switch ( daemonStatus )
    {
        case NetworkStatus::Offline:
        case NetworkStatus::OfflineFailed:
        case NetworkStatus::OfflineDisconnected:
        case NetworkStatus::ShuttingDown:
            if ( d->m_state == Online )
            {
                kDebug() << "STATE IS PENDING";
                d->m_state = Pending;
            }
            else
            {
                kDebug() << "STATE IS OFFLINE";
                d->m_state = Offline;
            }
            break;
        case NetworkStatus::Establishing:
        case NetworkStatus::Online:
            kDebug() << "STATE IS ONLINE";
            d->m_state = Online;
            break;
        case NetworkStatus::NoNetworks:
        case NetworkStatus::Unreachable:
            kDebug() << "STATE IS INACTIVE";
            d->m_state = Inactive;
            break;
    }
}

ConnectionManager::~ConnectionManager()
{
    delete d;
}

NetworkStatus::EnumStatus ConnectionManager::status( const QString & host )
{
    // need also to check that the daemon hasn't died
    updateStatus();
    if ( d->m_state == Pending )
        return NetworkStatus::Offline;
    if ( d->m_state == Online )
        return NetworkStatus::Online;
    if ( d->m_state == Offline )
        return NetworkStatus::Offline;
    return NetworkStatus::NoNetworks;
}

NetworkStatus::EnumRequestResult ConnectionManager::requestConnection( QWidget * mainWidget, const QString & host, bool userInitiated )
{
    kDebug() ;
    NetworkStatus::EnumRequestResult result;
    // if offline and the user has previously indicated they didn't want any new connections, suppress it
    if ( d->m_state == Offline && !userInitiated && d->m_userInitiatedOnly )
        result = NetworkStatus::UserRefused;
    // if offline, ask the user whether this connection should be allowed
    if ( d->m_state == Offline )
    {
        if ( askToConnect( mainWidget ) )
            //result = NetworkStatus::Connected;
            result = (NetworkStatus::EnumRequestResult)d->m_stub->request( host, userInitiated );
        else
            result = NetworkStatus::UserRefused;
    }
    // otherwise, just ask for the connection
    else
        result = (NetworkStatus::EnumRequestResult)d->m_stub->request( host, userInitiated );
    
    return result;
}

void ConnectionManager::relinquishConnection( const QString & host )
{
    d->m_stub->relinquish( host );
}

void ConnectionManager::slotStatusChanged( QString host, int status )
{
    kDebug() ;
    updateStatus();
    // reset user initiated only flag if we are now online
    if ( d->m_state == Online )
        d->m_userInitiatedOnly = false;

    emit statusChanged( host, (NetworkStatus::EnumStatus)status );
}

bool ConnectionManager::askToConnect( QWidget * mainWidget )
{
    i18n( "A network connection was disconnected.  The application is now in offline mode.  Do you want the application to resume network operations when the network is available again?" );
    i18n( "This application is currently in offline mode.  Do you want to connect?" );
    return ( KMessageBox::questionYesNo( mainWidget,
            i18n("This application is currently in offline mode.  Do you want to connect in order to carry out this operation?"),
            i18n("Leave Offline Mode?"),
            i18n("Connect"), i18n("Stay Offline"),
            QLatin1String("OfflineModeAlwaysGoOnline") ) == KMessageBox::Yes );
}

#include "connectionmanager.moc"