/*

* Copyright (c) 2009 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 "tsrunningappstorage.h"

#include <s32strm.h>

#include <s32mem.h>

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CRunningAppStorage::CRunningAppStorage(MHsDataObserver& observer)

: mObserver(observer)

{

}

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CRunningAppStorage::~CRunningAppStorage()

{

    mData.Close();

    delete mEngine;

}

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CRunningAppStorage* CRunningAppStorage::NewL(MHsDataObserver& observer,

                                             MTsResourceManager& resources,

                                             MTsWindowGroupsMonitor &wsMonitor)

{

    CRunningAppStorage * self = new (ELeave)CRunningAppStorage(observer);

    CleanupStack::PushL(self);

    self->ConstructL(resources, wsMonitor);

    CleanupStack::Pop(self);

    return self;

}

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void CRunningAppStorage::ConstructL(MTsResourceManager& resources, 

                                    MTsWindowGroupsMonitor &wsMonitor)

{

    RArray<RWsSession::TWindowGroupChainInfo> wgList;

    CleanupClosePushL(wgList);

    User::LeaveIfError(resources.WsSession().WindowGroupList(&wgList));

    mEngine->HandleWindowGroupChanged(resources, wgList.Array());

    CleanupStack::PopAndDestroy(&wgList);

    DataChangedL();

}

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const TDesC8& CRunningAppStorage::Data() const

{

    return mData;

}

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void CRunningAppStorage::DataChanged() 

{

    TRAPD( err, DataChangedL() );

    if ( err == KErrNone)

    {

        mObserver.DataChanged();

    }

}

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void CRunningAppStorage::DataChangedL()

{

    const TInt KExpandSize = 256; // "Granularity" of dynamic buffer

    CBufFlat* buf = CBufFlat::NewL(KExpandSize);

    CleanupStack::PushL(buf);

    RBufWriteStream stream(*buf); 

    CleanupClosePushL(stream);

    CleanupStack::PopAndDestroy(&stream);

    mData.Close();

    mData.CreateL( buf->Size() );

    buf->Read(0, mData, buf->Size());

    CleanupStack::PopAndDestroy(buf);

}

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