/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Browse and activate proper connection method.

*

*/

#include <es_sock.h>

#include <es_enum.h>

#include "dhcppsylogging.h"

#include "dhcppsy.hrh"

#include "dhcpconnectionprogressnotifier.h"

#include "dhcpconnectionstateobserver.h"

#include "dhcpconnectionengine.h"

// ---------------------------------------------------------------------------

// CDhcpConnectionEngine::NewL

// ---------------------------------------------------------------------------

//

CDhcpConnectionEngine* CDhcpConnectionEngine::NewL (RConnection& aConnection)

    {

    CDhcpConnectionEngine* self = new (ELeave) CDhcpConnectionEngine (aConnection);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

    }

// Member methods

// ---------------------------------------------------------------------------

// CDhcpConnectionEngine::CDhcpConnectionEngine

// ---------------------------------------------------------------------------

//

CDhcpConnectionEngine::CDhcpConnectionEngine (RConnection& aConnection) :  CActive ( EPriorityStandard ),

        iConnection (aConnection)

    {

    TRACESTRING( "CDhcpConnectionEngine::CDhcpConnectionEngine" );

    CActiveScheduler::Add( this );

    }

// ---------------------------------------------------------------------------

// CDhcpConnectionEngine::~CDhcpConnectionEngine

// ---------------------------------------------------------------------------

//

CDhcpConnectionEngine::~CDhcpConnectionEngine()

    {

    TRACESTRING( "CDhcpConnectionEngine::~CDhcpConnectionEngine" );

    Cancel();

    delete iProgressNotifier;

    }

// ---------------------------------------------------------------------------

// CDhcpConnectionEngine::ConstructL

// ---------------------------------------------------------------------------

//

void CDhcpConnectionEngine::ConstructL()

    {

    TRACESTRING( "CDhcpConnectionEngine::ContructL" );

    iProgressNotifier = CDhcpConnectionProgressNotifier::NewL(iConnection, this);

    }

// ---------------------------------------------------------------------------

// CDhcpConnectionEngine::DoCancel

// ---------------------------------------------------------------------------

//

void CDhcpConnectionEngine::DoCancel()

    {

    TRACESTRING2 ( "CDhcpConnectionEngine::DoCancel, state %d", iStates);

    // Is this really needed ? Most cases SVP will continue with same IAP connection so

    // it's not good to drop a connection beforehand ...

    iProgressNotifier->Cancel ();

    iConnection.Close ();

    TRACESTRING( "CDhcpConnectionEngine::DoCancel, end" );

    }

// ---------------------------------------------------------------------------

// CDhcpConnectionEngine::ActiveWlanConnection

// ---------------------------------------------------------------------------

//

TBool CDhcpConnectionEngine::IsConnectedL (TUint32 aIAPId )

    {

    TUint connectionCount = 0;

    TBool isConnected = EFalse;

    if (iProgressNotifier->GetState () == EDhcpConnectStateConnected)

        {

        isConnected = ETrue;

        return isConnected;

        }

    User::LeaveIfError( iConnection.EnumerateConnections(connectionCount));

    TRACESTRING2 ("CDhcpConnectionEngine::IsConnectedL, connCount, %d", connectionCount )

    // Loop shall start from second item, otherwise this will not work.

    for ( TUint i = 1; i <= connectionCount; i++ )

        {

        TPckgBuf<TConnectionInfo> connInfo;

        User::LeaveIfError( iConnection.GetConnectionInfo( i, connInfo ) );

        if ( connInfo().iIapId == aIAPId )

            {

            User::LeaveIfError( iConnection.Attach(

                connInfo, RConnection::EAttachTypeNormal ) );

            isConnected = ETrue;

            break;

            }

        }

    return isConnected;

    }

// ---------------------------------------------------------------------------

// CDhcpConnectionEngine::StateChangedL

// ---------------------------------------------------------------------------

//

void CDhcpConnectionEngine::StateChangedL ()

    {

    switch(iProgressNotifier->GetState ())

        {

        case EDhcpConnectStateConnected:

            {

            if (iStates==EConnectionStartup)

                {

                TRequestStatus *status = iClientStatus;

                User::RequestComplete ( status, KErrNone );

                iStates = EIdle;

                }

            }

            break;

        }

    }

// ---------------------------------------------------------------------------

// CDhcpConnectionEngine::ConnectL

// ---------------------------------------------------------------------------

//

void CDhcpConnectionEngine::ConnectL (TUint aIAPConnectionId, TRequestStatus& aStatus)

    {

    TRACESTRING( "CDhcpConnectionEngine::ConnectL" );

    aStatus = KRequestPending;

    iClientStatus = &aStatus;

    iIapProfileId = aIAPConnectionId;

    iPreferences.SetIapId( iIapProfileId );

    iPreferences.SetDialogPreference( ECommDbDialogPrefDoNotPrompt );

    iConnection.Start( iPreferences, iStatus );

    iStates = ETurnConnectionOn;

    SetActive ();

    }

// ---------------------------------------------------------------------------

// CDhcpConnectionEngine::RunL

// ---------------------------------------------------------------------------

//

void CDhcpConnectionEngine::RunL()

    {

    TRACESTRING2( "CDhcpConnectionEngine::RunL, %d ", iStates);

    TRACESTRING2( "CDhcpConnectionEngine::RunL, %d ", iStatus.Int() );

    TInt retValue = iStatus.Int();

    if(retValue!=KErrNone)

        {

        //

        // Even we failed to connect specified wlan network, we should continue with

        // location query progress until the DHCPInform message has been send to someone.

        // This is reason for that we complete with KErrNone in here.

        //

        TRequestStatus *status = iClientStatus;

        User::RequestComplete ( status, KErrNone );

        iStates = EIdle;

        }

    else

        {

        switch (iStates)

            {

            case ETurnConnectionOn:

                {

                // Ok we just flag on until progress notification tells to us that

                iStates = EConnectionStartup;

                }

                break;

            }

        }

    }

// End of file