/*

* Copyright (c) 2006 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:  List box for the SUPL Settings UI

*

*/

// System Includes

#include <e32keys.h>

#include <locsuplsettingsui.rsg>

#include <avkon.rsg>

#include <StringLoader.h>

#include <centralrepository.h>

#include <epos_csuplsettings.h>

// User Include

#include "locsuplsettingslbmodel.h"

#include "locsuplsettingsuiengine.h"

#include "locsuplsettingsprivatecrkeys.h"

#include "epos_omasuplconfigurationkeys.h"

#include "locsupldebug.h"

// Constants

const TInt KMaxConversionBufferLength = 0x200;

_LIT( KDefaultServerIPAddress, " " );

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

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

// CLocSUPLSettingsLBModel::CLocSUPLSettingsLBModel

// Default Constructor

//

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

//

CLocSUPLSettingsLBModel::CLocSUPLSettingsLBModel( 

                            CLocSUPLSettingsUiEngine& aEngine )

    :iEngine( aEngine )

	{		

	}

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

// CLocSUPLSettingsLBModel::~CLocSUPLSettingsLBModel

// Destructor

//

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

//

CLocSUPLSettingsLBModel::~CLocSUPLSettingsLBModel()

	{	

	DEBUG( + CLocSUPLSettingsLBModel::~CLocSUPLSettingsLBModel );	

	// Delete the Buffers

	delete iBuffer;

	iBuffer = NULL;

	delete iServerDetailTitle;

	iServerDetailTitle = NULL;

	delete iSuplUsageTitle;

	iSuplUsageTitle = NULL;

	delete iSuplServerDetail;

	iSuplServerDetail = NULL;

	delete iDefaultSuplUsage;

	iDefaultSuplUsage = NULL;

	DEBUG( - CLocSUPLSettingsLBModel::~CLocSUPLSettingsLBModel );	

	}

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

// CLocSUPLSettingsLBModel* CLocSUPLSettingsLBModel::NewL

// Two-phased constructor

// 

// @param  aEngine                  Reference the SUPL Settings Engine 

// @return CLocSUPLSettingsLBModel*	Reference to the object created

//

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

//

CLocSUPLSettingsLBModel* CLocSUPLSettingsLBModel::NewL( 

                                    CLocSUPLSettingsUiEngine& aEngine )

	{

	DEBUG( + CLocSUPLSettingsLBModel::NewL );	

	CLocSUPLSettingsLBModel* self = CLocSUPLSettingsLBModel::NewLC( aEngine );

	CleanupStack::Pop( self );

	DEBUG( - CLocSUPLSettingsLBModel::NewL );	

	return self;

	}

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

// CLocSUPLSettingsLBModel* CLocSUPLSettingsLBModel::NewLC

// Two-phased constructor

// 

// @param  aEngine                  Reference the SUPL Settings Engine 

// @return CLocSUPLSettingsLBModel*	Reference to the object created

//

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

//

CLocSUPLSettingsLBModel* CLocSUPLSettingsLBModel::NewLC( 

                                    CLocSUPLSettingsUiEngine& aEngine )

	{

	CLocSUPLSettingsLBModel* self = 

	                new( ELeave )CLocSUPLSettingsLBModel( aEngine );

	CleanupStack::PushL( self );

	self->ConstructL();

	return self;

	}

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

// void CLocSUPLSettingsLBModel::ConstructL

// Second Phase of the two phase constructor.

// 

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

//

void CLocSUPLSettingsLBModel::ConstructL()

	{

	DEBUG( + CLocSUPLSettingsLBModel::ConstructL );	

    // Allocate the Conversion Buffer

	iBuffer = HBufC16::NewL( KMaxConversionBufferLength ); 

	// Read the Local Variation Key and set the Item count

	TInt flagValue = 0;

	CRepository* repository = CRepository::NewLC( TUid::Uid( KCRUidLocSuplSettingsUi ) );

	repository->Get( KLocSuplSettingsLVFlags, flagValue );

	CleanupStack::PopAndDestroy( repository );

	repository = NULL;	

	if( flagValue )

	    {

	    iServerAddressPresent = ETrue;

     	// Allocate and set the server ip address title field

    	iServerDetailTitle = StringLoader::LoadL( R_LOC_SUPL_SERVER_DETAIL );

    	// Allocate the Default IP address

    	iSuplServerDetail = HBufC16::NewL( KDefaultServerIPAddress().Length() );

    	TPtr16 ptr( iSuplServerDetail->Des() );

    	ptr.Copy( KDefaultServerIPAddress );		       

	    }

    // Reinitializing the flag value

    flagValue = 0;

    TRAPD( error, repository = CRepository::NewL( KCRUidOMASuplConfiguration ) );

    if ( !error )

        {

        error = repository->Get( KOMASuplConfigurationSuplPermissionQueryUsage, flagValue );

        if ( error || flagValue < 0 )

            {

            flagValue = 0;

            }

    	delete repository;

    	repository = NULL;

        }	

	// Check for SUPL Setting usage variationing.

	if( flagValue )

	    {

	    iSuplUsagePresent = ETrue;

     	// Allocate and set the server ip address title field

    	iSuplUsageTitle = StringLoader::LoadL( R_LOC_SUPL_USE );

    	iDefaultSuplUsage =  StringLoader::LoadL( R_AVKON_SELEC_SETT_VAL_FIELD_NONE );

    	// Default value can be used for this field as well

    	// So no need to have another variable.		       

	    }

	DEBUG( - CLocSUPLSettingsLBModel::ConstructL );	

	}

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

// TSUPLSettingsItemId CLocSUPLSettingsLBModel::ResolveSettingsItem

// Packs the server address to the end of the buffer passed.

//

// @param  aPtr Buffer to which the server address needs to be appended.

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

//

CLocSUPLSettingsLBModel::TSUPLSettingsItemId 

    CLocSUPLSettingsLBModel::ResolveSettingsItem( TInt aListboxIndex ) const

    {

 	DEBUG( + CLocSUPLSettingsLBModel::ResolveSettingsItem );	

   	TSUPLSettingsItemId selectedItem = ESUPLSettingsUsage;

    switch ( aListboxIndex )

        {

        case 0:

            {

            selectedItem = ESUPLSettingsUsage;

            break;

            }        

        case 1:

            {

            selectedItem = ESUPLSettingsServersDetail;

            break;

            }

        case 2:

            {

            selectedItem = ESUPLSettingsActiveSessions;

            break;   

            }

        default:

            {

            break;            

            }

        }

	DEBUG( - CLocSUPLSettingsLBModel::ResolveSettingsItem );	

    return selectedItem;

    }

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

// TInt CLocSUPLSettingsLBModel::MdcaCount() const

// Inherited from MDesCArray. Returns the total number of items in the 

// Settings description array

//

// @return TInt The total number of elements in the Settings Description array

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

//

TInt CLocSUPLSettingsLBModel::MdcaCount() const

	{

	DEBUG( + CLocSUPLSettingsLBModel::MdcaCount );	

	// Initialize the count to 0 

	TInt itemCount = 0;

	// Check for SUPL usage.

	if ( iSuplUsagePresent )

	    {

	    itemCount++;

	    // Check if the usage value is disabled

	    if ( iEngine.GetSuplUsage() == CSuplSettings::ESuplUsageDisabled )

	        {

	        return itemCount;

	        }

		// Check for Server address

		iServerAddressPresent ? itemCount++ : itemCount;	

	    }

	itemCount++; // For the third entry "Active sessions"

	// Check if the SUPL Usage value is Disabled

	// If that is the case then only SUPL usage will be displayed

	DEBUG( - CLocSUPLSettingsLBModel::MdcaCount );	

	return itemCount;

	}

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

// TPtrC16 CLocSUPLSettingsLBModel::MdcaPoint() const

// Inherited from MDesCArray. Returns the list box entry corresponding to the 

// index value

//

// @param  aIndex The index whose list box entry needs to be retrieved

// @return TPtr16 The list box description 

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

//

TPtrC16 CLocSUPLSettingsLBModel::MdcaPoint( TInt aIndex ) const

	{

	DEBUG( + CLocSUPLSettingsLBModel::MdcaPoint );	

	// Zero the internal buffer

	TPtr16 ptr( iBuffer->Des() );

	ptr.Zero();

	// CAknSettingStyleListBox

	// Format "\t%S\t\t%S"

	// Append the first tab

	ptr.Append( EKeyTab );

	TSUPLSettingsItemId index = ResolveSettingsItem( aIndex );		

	switch( index )

	    {

	    case ESUPLSettingsUsage:

	        {

	        AppendSuplUsage( ptr );

	        break;

	        }

	    case ESUPLSettingsServersDetail:

	        {

	        AppendSuplServerDetail( ptr );

	        break;    

	        }

	    case ESUPLSettingsActiveSessions:

	        {

	        TRAP_IGNORE( AppendSuplActiveSessionsDetailL( ptr ) );

	        break;

            }

	    default:

	        {

        	// Append the second tab

        	ptr.Append( EKeyTab );        	

        	// Append the third tab

        	ptr.Append( EKeyTab );

	        break;    

	        }

	    }  

	DEBUG( - CLocSUPLSettingsLBModel::MdcaPoint );	

	return iBuffer->Des();

	}

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

// TPtrC16 CLocSUPLSettingsLBModel::AppendSuplServerDetail()

// Packs the server address to the end of the buffer passed.

//

// @param  aPtr Buffer to which the server address needs to be appended.

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

//	

void CLocSUPLSettingsLBModel::AppendSuplUsage( TDes& aPtr ) const

    {

	DEBUG( + CLocSUPLSettingsLBModel::AppendSuplUsage );	

    // Append the Title text

    aPtr.Append( iSuplUsageTitle->Des() );

    // Append the second tab

	aPtr.Append( EKeyTab ); 

	// Append the third tab

	aPtr.Append( EKeyTab );

	// Obtain the SUPL usage from the SUPL Settings Engine. If

	// the settings is not set then a Not defined value would be 

	// displayed to the user

    TPtr16 suplUsagePtr( NULL, 0 );

    TRAPD( error, suplUsagePtr.Set( iEngine.GetSuplUsageL() ) );         

    if( error || !suplUsagePtr.Length() )

        {

        // Using the same string as SUPL settings AP

        aPtr.Append( iDefaultSuplUsage->Des() );

        }

    else

        {

        aPtr.Append( suplUsagePtr );              

        }    

	DEBUG( - CLocSUPLSettingsLBModel::AppendSuplUsage );	

    }    

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

// TPtrC16 CLocSUPLSettingsLBModel::AppendSuplServerDetail()

// Packs the server address to the end of the buffer passed.

//

// @param  aPtr Buffer to which the server address needs to be appended.

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

//	

void CLocSUPLSettingsLBModel::AppendSuplServerDetail( TDes& aPtr ) const

    {

	DEBUG( + CLocSUPLSettingsLBModel::AppendSuplServerDetail );	

    // Append the Title text

    aPtr.Append( iServerDetailTitle->Des() );

    // Append the second tab

	aPtr.Append( EKeyTab ); 

	// Append the third tab

	aPtr.Append( EKeyTab );

	// Append the forth tab

	aPtr.Append( EKeyTab );	

	DEBUG( - CLocSUPLSettingsLBModel::AppendSuplServerDetail );	

    }

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

// TPtrC16 CLocSUPLSettingsLBModel::AppendSuplActiveSessionsDetailL()

// Packs the server address to the end of the buffer passed.

//

// @param  aPtr Buffer to which the server address needs to be appended.

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

//	

void CLocSUPLSettingsLBModel::AppendSuplActiveSessionsDetailL( TDes& aPtr ) const

    {

	DEBUG( + CLocSUPLSettingsLBModel::AppendSuplActiveSessionsDetailL );	

    HBufC16* suplActiveSessionsTitle;

    TRAPD( error, iEngine.GetActiveSessionsCountL( iSessionCount ) );

	if( !error )

		{

		switch( iSessionCount )

			{

			case 0:

				suplActiveSessionsTitle = StringLoader::LoadL( R_LOC_SUPL_NO_SERVICE );

				break;

			case 1:

				suplActiveSessionsTitle = StringLoader::LoadL( R_LOC_SUPL_SINGLE_SERVICE );

				break;

			default:

				suplActiveSessionsTitle = StringLoader::LoadL( R_LOC_SUPL_MULTIPLE_SERVICES, iSessionCount );

				break;

			}

		if( suplActiveSessionsTitle )

			{

    	    // Append the Title text

	        aPtr.Append( suplActiveSessionsTitle->Des() );

            delete suplActiveSessionsTitle;

	        suplActiveSessionsTitle = NULL;

			}

		}

    // Append the second tab

	aPtr.Append( EKeyTab ); 

	// Append the third tab

	aPtr.Append( EKeyTab );

	// Append the forth tab

	aPtr.Append( EKeyTab );	

	DEBUG( - CLocSUPLSettingsLBModel::AppendSuplActiveSessionsDetailL );	

}

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

// TInt CLocSUPLSettingsLBModel::ActiveSessionCount()

// Returns the number of Active sessions.

//

// @return  TInt Returns the number of Active sessions count.

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

//	

TInt CLocSUPLSettingsLBModel::ActiveSessionCount( ) const

    {

	return iSessionCount;

	}

// End of file