/*

* Copyright (c) 2005-2006 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:  

*  Class which implements handling Side Volume Key events (SVK).

*  This class implements methods of MRemConCoreApiTargetObserver

*

*/

// INCLUDE FILES

#include <remconcoreapitarget.h>

#include <remconcoreapitargetobserver.h>

#include <remconinterfaceselector.h>

#include <aknconsts.h>                      // KAknStandardKeyboardRepeatRate

#include "UniMmsSvkEvents.h"

// CONSTANTS

const TInt KVolumeFirstChangePeriod = KAknStandardKeyboardRepeatRate;

const TInt KVolumeChangePeriod = KAknStandardKeyboardRepeatRate;

const TInt KVolumeChangeUp = 1;      

const TInt KVolumeChangeDown = -1;      

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

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

// CMmsSvkEvents

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

//

CMmsSvkEvents* CMmsSvkEvents::NewL( MMmsSvkEventsObserver& aObserver )

    {

    CMmsSvkEvents* self = 

        new ( ELeave ) CMmsSvkEvents( aObserver );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CMmsSvkEvents

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

//

CMmsSvkEvents::CMmsSvkEvents( MMmsSvkEventsObserver& aObserver ) :

    iObserver( aObserver )

    {    

    }

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

// CMmsSvkEvents::~CMmsSvkEvents

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

//

CMmsSvkEvents::~CMmsSvkEvents()

    {    

    if ( iVolumeTimer )

        {

        iVolumeTimer->Cancel();

        delete iVolumeTimer;

        }

    delete iInterfaceSelector;

    iCoreTarget = NULL; // For LINT. Owned by iInterfaceSelector

    }

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

// ConstructL

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

//

void CMmsSvkEvents::ConstructL( )

    {

    iInterfaceSelector = CRemConInterfaceSelector::NewL();

    // owned by iInterfaceSelector

    iCoreTarget = CRemConCoreApiTarget::NewL( *iInterfaceSelector, *this ); 

    iInterfaceSelector->OpenTargetL();

    // Remote control server command repeat timer.

    iVolumeTimer = CPeriodic::NewL( EPriorityNormal );

    }

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

// CMmsSvkEvents::MrccatoCommand

// Handles side volume key events.

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

//

void CMmsSvkEvents::MrccatoCommand( TRemConCoreApiOperationId   aOperationId, 

                                    TRemConCoreApiButtonAction  aButtonAct )

    {

    TRequestStatus stat;

    switch ( aOperationId )

        {

        case ERemConCoreApiVolumeUp: //  Volume Up

            {

            switch ( aButtonAct )

                {

                case ERemConCoreApiButtonPress:

                    {

                    // Volume up hold down for 0,6 seconds

                    DoChangeVolume( );

                    iVolumeTimer->Cancel();

                    iVolumeTimer->Start(    KVolumeFirstChangePeriod,

                                            KVolumeChangePeriod, 

                                            TCallBack( ChangeVolume, this ) );

                    break;

                    }

                case ERemConCoreApiButtonRelease:

                    {

                    iVolumeTimer->Cancel();

                    break;

                    }

                case ERemConCoreApiButtonClick:

                    {

                    // Volume up clicked

                    iChange = KVolumeChangeUp;

                    DoChangeVolume( );

                    break;

                    }

                default:

                    {

                    // Never hits this

                    break;

                    }

                }

            iCoreTarget->VolumeUpResponse(stat, KErrNone);

            break;

            }

        case ERemConCoreApiVolumeDown: //  Volume Down

            {

            switch ( aButtonAct )

                {

                case ERemConCoreApiButtonPress:

                    {

                    // Volume down hold for 0,6 seconds

                    DoChangeVolume( );

                    iVolumeTimer->Cancel();

                    iVolumeTimer->Start(    KVolumeFirstChangePeriod,

                                            KVolumeChangePeriod, 

                                            TCallBack( ChangeVolume, this ) );

                    break;

                    }

                case ERemConCoreApiButtonRelease:

                    {

                    iVolumeTimer->Cancel();

                    break;

                    }

                case ERemConCoreApiButtonClick:

                    {

                    // Volume down clicked

                    iChange = KVolumeChangeDown;

                    DoChangeVolume( );

                    break;

                    }

                default:

                    {

                    // Never hits this

                    break;

                    }

                }

            iCoreTarget->VolumeDownResponse(stat, KErrNone);

            break;

            }

        default :

            {

            iCoreTarget->SendResponse( stat, aOperationId, KErrNone );

            break;

            }

        }

    User::WaitForRequest( stat );

    }

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

// ChangeVolumeL

// 

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

//

void CMmsSvkEvents::DoChangeVolume( )

    {

    TRAP_IGNORE( iObserver.MmsSvkChangeVolumeL( iChange ) );

    }

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

// ChangeVolume

// 

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

//

TInt CMmsSvkEvents::ChangeVolume( TAny* aObject )

    {

    // cast, and call non-static function

    static_cast<CMmsSvkEvents*>( aObject )->DoChangeVolume( );

    return KErrNone;

    }

// End of File