/*

* Copyright (c) 2002-2007 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:  EikSrv keysound map.

*

*/

#include "eikkeysoundmap.h"

#include <avkon.hrh>

const TInt KEikKeySoundMapGranularity = 4;

const TInt KEikSKeyGranularity = 16;

// class TSkey - SKey definition

// Keycode and Repeat are stored as a single code, to enable fast searching

void TSKey::Set(TInt aKeyCode, TInt aRepeatType, TInt aSid)

    {

    iSid = aSid;

    iKeyCode = aKeyCode + (aRepeatType << 16);

    }

// ===============================   

// CEikKeySoundMap implementation.

// ===============================

CEikKeySoundMap* CEikKeySoundMap::NewL()

    {

    CEikKeySoundMap* self = new(ELeave)CEikKeySoundMap();

    return self;

    }

CEikKeySoundMap::~CEikKeySoundMap()

    {

    }

CEikKeySoundMap::CEikKeySoundMap()

:CArrayFixFlat<TSKey>(KEikSKeyGranularity)

    {

    }

void CEikKeySoundMap::InternalizeL(RReadStream& aStream, TInt aItems, TInt aUid)

    {

    for (TInt ii=0; ii<aItems; ii++)

        {

        TInt sid = aStream.ReadInt16L();

        if (sid < 1000)

            {

            sid = (aUid << 16) + sid;

            }

        TInt key = aStream.ReadUint16L();

        TInt type = aStream.ReadInt8L();

        TSKey sKey;

        sKey.Set(key, type, sid);

        TKeyArrayFix sidKey(_FOFF(TSKey, iKeyCode), ECmpTInt);

        InsertIsqL(sKey, sidKey);

        }

    }

TBool CEikKeySoundMap::Find(TSKey& aKey)

    {

    TKeyArrayFix sidKey(_FOFF(TSKey, iKeyCode), ECmpTInt);

    TInt index;

    if (FindIsq(aKey, sidKey, index) == 0)

        {

        aKey.iSid = At(index).iSid;

        return ETrue;

        }

    return EFalse;

    }

TInt CEikKeySoundMap::ContextResourceId()

    {

    return iContextResourceId;  

    }

void CEikKeySoundMap::SetContextResourceId(TInt aContextResId)

    {

    iContextResourceId = aContextResId; 

    }

// =================================   

// CEikKeySoundStack implementation.

// =================================

CEikKeySoundStack* CEikKeySoundStack::NewL()

    {

    CEikKeySoundStack* self = new(ELeave)CEikKeySoundStack();

    return self;

    }

CEikKeySoundStack::~CEikKeySoundStack()

    {

    ResetAndDestroy();

    }

CEikKeySoundStack::CEikKeySoundStack()

:CArrayPtrFlat<CEikKeySoundMap>(KEikKeySoundMapGranularity)

    {

    }

TBool CEikKeySoundStack::Find(TInt aScanCode, TInt aRepeat, TInt& aSid)

    {

    TSKey key;

    // Decide on key-repeat type to check for

    if (aRepeat == 0)

        {

        key.Set(aScanCode, ESKeyTypeShort, 0);

        }

    else

        {

        if (iPreviousRepeat == 0)

            {

            key.Set(aScanCode, ESKeyTypeLong, 0);

            }

        else

            {

            key.Set(aScanCode, ESKeyTypeRepeat, 0);

            }

        }

    iPreviousRepeat = aRepeat;

    // Check in top layer

    TInt index = Count();

    while (index)

        {

        index--;

        CEikKeySoundMap* map = At(index);

        if (map->Find(key))

            {

            if (key.iSid == EAvkonSIDNoSound)

                return EFalse;

            else if (key.iSid == EAvkonSIDDefaultSound)

                {

                // Go direct to play default sound

                index = 1;

                continue;

                }

            else

                {

                aSid = key.iSid;

                return ETrue;

                }

            }

        }

    return EFalse;

    }