/*

* Copyright (c) 2004-2005 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:  Implementation of DialUtils.

*

*/

// INCLUDE FILES

#include    <featmgr.h>                 // Feature Manager.

#include    "DialUtilsImpl.h"           // Interface.

#include    <centralrepository.h>       // Central repository

#include    <settingsinternalcrkeys.h>  // Settings Central Repository keys.

// CONSTANTS

// Prefix change Off. See SharedDataKeys.h and SettingsInternalCRKeys.h

const TInt KDiUtPrefixChangeOff = 0;

// Prefix change On. See SharedDataKeys.h and SettingsInternalCRKeys.h

const TInt KDiUtPrefixChangeOn = 1;

// International prefix.

_LIT( KDiUtIntPrefix, "+" );

// International prefix.

_LIT( KDiUtJapanPrefix, "+81" );

// Zero prefix.

_LIT( KDiUtZeroPrefix, "0" );

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

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

// CDialUtilsImpl::CDialUtilsImpl

// 

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

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

//

CDialUtilsImpl::CDialUtilsImpl()

    {

    }

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

// CDialUtilsImpl::ConstructL

// 

// Symbian 2nd phase constructor can leave.

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

//

void CDialUtilsImpl::ConstructL()

    {

    // Sets up TLS, must be done before FeatureManager is used.

    FeatureManager::InitializeLibL();

    iRepository = CRepository::NewL( KCRUidTelephonySettings );

    }

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

// CDialUtilsImpl::NewL

// 

// Two-phased constructor.

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

//

CDialUtilsImpl* CDialUtilsImpl::NewL()

    {

    CDialUtilsImpl* self = new( ELeave ) CDialUtilsImpl;

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

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

// CDialUtilsImpl::~CDialUtilsImpl

// 

// Destructor.

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

//

CDialUtilsImpl::~CDialUtilsImpl()

    {

    delete iRepository;

    // Frees the TLS! Must be done after FeatureManager is used.

    FeatureManager::UnInitializeLib();

    }

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

// CDialUtilsImpl::CheckNumber

// 

// 

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

//

TInt CDialUtilsImpl::CheckNumber( HBufC& aPhoneNumber )

    {

    TInt err = KErrNone;

    TBool checkPrefix = 

        FeatureManager::FeatureSupported( KFeatureIdJapanPrefixChange );

    if ( checkPrefix )

        {

        TInt prefixMode = KDiUtPrefixChangeOff; // Default: Off.

        if ( !err )

            {

            err = iRepository->Get(

                KSettingsDialPrefixChangeMode,

                prefixMode );

            if ( !err )

                {

                // Shared data information is ok, so act according to it.

                switch ( prefixMode )

                    {

                    case KDiUtPrefixChangeOff:

                        {

                        // Nothing needs to be done, so let the phone number to

                        // be unchanged and just break.

                        break;

                        }

                    case KDiUtPrefixChangeOn:

                        {

                        TDiUtPrefixText prefixText;

                        err = iRepository->Get( 

                            KSettingsDialPrefixText,

                            prefixText );

                        if ( !err )

                            {

                            err = CombineTexts( aPhoneNumber.Des(), prefixText );

                            }

                        break;

                        }

                    default:

                        // Should never happen, value is corrupted.

                        err = KErrCorrupt;

                        break;

                    }

                }

            }

        }

    return err;

    }

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

// CDialUtilsImpl::CombineTexts

// 

// 

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

//

TInt CDialUtilsImpl::CombineTexts(

    TPtr aPhoneNumber,

    const TDiUtPrefixText& aPrefixText ) const

    {

    TInt err = KErrNone;

    TInt beginning = 0; // The beginning for replacement.

    TInt replaceLength = 0; // The string length to be replaced.

    TInt location = KErrNotFound; // The location of searched string.

    // Try to find Japan prefix.

    location = aPhoneNumber.Find( KDiUtJapanPrefix );

    if ( location == beginning )

        {

        // The string was found, so make replacement. 

        // Safe because zeroPrefix < KDiUtJapanPrefix.

        replaceLength = KDiUtJapanPrefix().Length();

        aPhoneNumber.Replace( beginning, replaceLength, KDiUtZeroPrefix );

        }

    else

        {

        // Try to find international prefix.

        location = aPhoneNumber.Find( KDiUtIntPrefix );

        if ( location == beginning )

            {

            replaceLength = KDiUtIntPrefix().Length();

            // The string was found, so try to make replacement. 

            const TInt phoneNumLength = aPhoneNumber.Length();

            const TInt prefixLength = aPrefixText.Length();

            TInt stringLength = 

                ( phoneNumLength + prefixLength - replaceLength );

            if ( aPhoneNumber.MaxLength() >= stringLength )

                {

                // There is enough space to make this replace.

                aPhoneNumber.Replace( beginning, replaceLength, aPrefixText );

                }

            else

                {

                // There is no space to combine the strings, so inform it.

                err = KErrOverflow;

                }

            }

        }

    return err;

    }

// End of file