/*

* Copyright (c) 2002-2008 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:

*

*/

// INCLUDE FILES

#include "SaeSignalStrengthObserver.h"

#include "saepubsubnotifier.h"

#include "sae_debug.h"

#include <sacls.h>

#include <mmtsy_names.h>

#include <e32svr.h>

// EXTERNAL DATA STRUCTURES

// EXTERNAL FUNCTION PROTOTYPES  

// CONSTANTS

const TInt8 KNetworkBarsUninitialized(-111);

// MACROS

// LOCAL CONSTANTS AND MACROS

// MODULE DATA STRUCTURES

// LOCAL FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

// ============================ MEMBER FUNCTIONS ===============================

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

// CSaeSignalStrengthObserver::CSaeSignalStrengthObserver

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

CSaeSignalStrengthObserver::CSaeSignalStrengthObserver( 

    CSaePubSubNotifier* aNotifier ) : 

    CActive( EPriorityStandard ),

    iNotifier( aNotifier ), 

    iSignalStrength( 0 ), 

    iBar( KNetworkBarsUninitialized ),

    iPreviousBar( KNetworkBarsUninitialized )

    {

    }

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

// CSaeSignalStrengthObserver::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CSaeSignalStrengthObserver::ConstructL()

    {

    COM_TRACE_( "SAE: CSaeSignalStrengthObserver::ConstructL()" );

    CActiveScheduler::Add( this );

	COM_TRACE_( "SAE: CSaeSignalStrengthObserver: Connecting to Etel server..." );

    TInt err = iEtelServer.Connect();

	if( err != KErrNone )

		{

		// Retry

		User::LeaveIfError( iEtelServer.Connect() );

		}

	COM_TRACE_( "SAE: CSaeSignalStrengthObserver: Loading phone module..." );

	err = iEtelServer.LoadPhoneModule( KMmTsyModuleName );

	if( err != KErrNone )

		{

		// Retry

		User::LeaveIfError( iEtelServer.LoadPhoneModule( KMmTsyModuleName ) );

		}

	COM_TRACE_( "SAE: CSaeSignalStrengthObserver: Opening sesion to RMobilePhone..." );

    err = iMobilePhone.Open( iEtelServer, KMmTsyPhoneName );

	if( err != KErrNone )

		{

		// Retry

		User::LeaveIfError( iMobilePhone.Open( iEtelServer, KMmTsyPhoneName ) );

		}

    // Issue first request

    Receive();

    COM_TRACE_( "SAE: CSaeSignalStrengthObserver::ConstructL() return void" );

    }

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

// CSaeSignalStrengthObserver::NewL

// Two-phased constructor.

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

//

CSaeSignalStrengthObserver* CSaeSignalStrengthObserver::NewL( 

    CSaePubSubNotifier* aNotifier )

    {

    COM_TRACE_( "SAE: CSaeSignalStrengthObserver::CSaeSignalStrengthObserver()" );

    CSaeSignalStrengthObserver* self = new( ELeave ) CSaeSignalStrengthObserver( aNotifier );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    COM_TRACE_( "SAE: CSaeSignalStrengthObserver::CSaeSignalStrengthObserver() return self" );

    return self;

    }

// Destructor

CSaeSignalStrengthObserver::~CSaeSignalStrengthObserver()

    {

    COM_TRACE_( "SAE: CSaeSignalStrengthObserver::~CSaeSignalStrengthObserver()" );

    Cancel();

    iMobilePhone.Close();

    iEtelServer.Close();

    COM_TRACE_( "SAE: CSaeSignalStrengthObserver::~CSaeSignalStrengthObserver() return void" );

    }

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

// CSaeSignalStrengthObserver::Receive

// ?implementation_description

// (other items were commented in a header).

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

//

void CSaeSignalStrengthObserver::Receive()

    {

    COM_TRACE_( "SAE: CSaeSignalStrengthObserver::Receive()" );

    if ( IsActive() )

        { 

        COM_TRACE_( "SAE: CSaeSignalStrengthObserver::Receive() allready request pending..." );

        return;

        }

    else

        {

        iMobilePhone.GetSignalStrength( iStatus, iSignalStrength, iBar );

        SetActive();      

        } 

    COM_TRACE_( "SAE: CSaeSignalStrengthObserver::Receive() return void." );

    }

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

// CSaeSignalStrengthObserver::IssueRequest

// ?implementation_description

// (other items were commented in a header).

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

//

void CSaeSignalStrengthObserver::IssueRequest()

    {

    COM_TRACE_( "SAE: CSaeSignalStrengthObserver::IssueRequest()" );

    if ( IsActive() )

        { 

        COM_TRACE_( "SAE: CSaeSignalStrengthObserver::IssueRequest() allready request pending... return void." );

        return;

        }

    else

        {

        iMobilePhone.NotifySignalStrengthChange( iStatus, iSignalStrength, iBar );

        } 

    SetActive(); 

    COM_TRACE_( "SAE: CSaeSignalStrengthObserver::IssueRequest() return void." );

    }

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

// CSaeSignalStrengthObserver::DoCancel

// ?implementation_description

// (other items were commented in a header).

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

//

void CSaeSignalStrengthObserver::DoCancel()

    {

    COM_TRACE_( "SAE: CSaeSignalStrengthObserver::DoCancel()" );

    if ( IsActive() )

        {  

        if ( iPreviousBar == KNetworkBarsUninitialized )

            {

            iMobilePhone.CancelAsyncRequest( EMobilePhoneGetSignalStrength );

            }

        else

            {

            iMobilePhone.CancelAsyncRequest( EMobilePhoneNotifySignalStrengthChange );

            }

        }

    COM_TRACE_( "SAE: CSaeSignalStrengthObserver::DoCancel() return void." );

    }

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

// CSaeSignalStrengthObserver::RunL

// ?implementation_description

// (other items were commented in a header).

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

//

void CSaeSignalStrengthObserver::RunL()

    {

    COM_TRACE_1( "SAE: CSaeSignalStrengthObserver::RunL(), bars: %d", iBar );

    TInt availability( ESANetworkAvailable );

    TInt strength( ESANetworkStrengthNone );

    if ( iStatus != KErrNone )

        {

        COM_TRACE_1( "SAE: CSaeSignalStrengthObserver::RunL() request failed %d", iStatus.Int() );

        }

    // Reissue request

    COM_TRACE_( "SAE: CSaeSignalStrengthObserver::RunL(), reissue request" );

    IssueRequest();

    if ( iPreviousBar != iBar )

        {

        iPreviousBar = iBar;

        switch ( iBar )

            {

            case 0:

                {

                availability = ESANetworkUnAvailable;    

                strength = ESANetworkStrengthNone;  

                }

            break;

            case 1:

                {

                availability = ESANetworkAvailable;    

                strength = ESANetworkStrengthLow;  

                }

    		break;

        	case 2:

                {

                availability = ESANetworkAvailable;    

                strength = ESANetworkStrengthLow;  

                }

       		break;

        	case 3:

                {

                availability = ESANetworkAvailable;    

                strength = ESANetworkStrengthMedium;  

                }

			break;

    		case 4:

                {

                availability = ESANetworkAvailable;    

                strength = ESANetworkStrengthMedium;  

                }

            break;

            case 5:

                {

                availability = ESANetworkAvailable;    

                strength = ESANetworkStrengthMedium;  

                }

            break;

            case 6:

                {

                availability = ESANetworkAvailable;    

                strength = ESANetworkStrengthHigh;  

                }

            break;

            case 7:

                {

                availability = ESANetworkAvailable;    

                strength = ESANetworkStrengthHigh;  

                }

            break;

            }

        TInt ret(0);

        ret = iNotifier->NotifyPubSub( KUidNetworkStatus, availability );

        COM_TRACE_1( "SAE: CSaeSignalStrengthObserver::RunL():KUidNetworkStatus: availability == %d", availability );        

        COM_TRACE_1( "SAE: CSaeSignalStrengthObserver::RunL():ret == %d", ret );        

        ret = iNotifier->NotifyPubSub( KUidNetworkStrength, strength );

        COM_TRACE_1( "SAE: CSaeSignalStrengthObserver::RunL():KUidNetworkStrength: strength == %d", strength );

        COM_TRACE_1( "SAE: CSaeSignalStrengthObserver::RunL():ret == %d", ret ); 

        ret = ret; // to suppress warning 'variable not used'                      

        }

    else

        {

        COM_TRACE_( "SAE: CSaeSignalStrengthObserver::RunL(), same state as on last notif., do not update states" );

        }

    COM_TRACE_( "SAE: CSaeSignalStrengthObserver::RunL(), return void." );

    }

//  End of File