/*

* 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 "tstaskmonitor_p.h"

#include "tstaskmonitor.h"

#include <eikenv.h>

#include <fbs.h>

#include <s32mem.h>

#include <XQConversions>

#include "tstaskmonitorclient.h"

#include "tstask.h"

#include "tstaskcontent.h"

#include "tstaskchangeinfo.h"

#include "tsutils.h"

using TaskSwitcher::CleanupResetAndDestroyPushL;

TsTaskMonitorPrivate::TsTaskMonitorPrivate(TsTaskMonitor *q) : q_ptr(q), mClient(0), mWsSession(CEikonEnv::Static()->WsSession())

{

    QT_TRAP_THROWING(mClient = CTsTaskMonitorClient::NewL());

    mClient->Subscribe(*this);

}

TsTaskMonitorPrivate::~TsTaskMonitorPrivate()

{

    mClient->CancelSubscribe();

    delete mClient;

}

QList<TsTaskChange> TsTaskMonitorPrivate::changeList()

{

    QList<TsTaskChange> changes;

    TsTaskChangeInfo qtChangeItem(-2,-2);

       QT_TRAP_THROWING (

           HBufC8 *data = mClient->TasksContentLC();

           if (data->Size() == 0) {

               CleanupStack::PopAndDestroy(data);

               return changes;

           }

           TPtr8 dataPointer(data->Des());

           RDesReadStream dataStream(dataPointer);

           CleanupClosePushL(dataStream);

           int count = dataStream.ReadInt32L();

           QT_TRYCATCH_LEAVING(

               changes.append( TsTaskChange( qtChangeItem, QSharedPointer<TsTask>()));

           for (int iter(0); iter < count; iter++) {

               qtChangeItem = TsTaskChangeInfo(iter, TsTaskChangeInfo::KInvalidOffset);

               QScopedPointer<TsTaskContent> content(new TsTaskContent);

               internalizeContentL(dataStream, content);

                   changes.append( TsTaskChange( qtChangeItem, QSharedPointer<TsTask>(new TsTask(content.take(), *this))));

           }

           )//QT_TRYCATCH_LEAVING

           CleanupStack::PopAndDestroy(&dataStream);

           CleanupStack::PopAndDestroy(data);

       );//QT_TRAP_THROWING

       return changes;

}

void TsTaskMonitorPrivate::internalizeContentL(RDesReadStream &  dataStream, QScopedPointer<TsTaskContent> &content)

{

    // get name

    TInt nameLength(dataStream.ReadInt32L());

    if (0 < nameLength) {

      HBufC* name = HBufC::NewLC(dataStream, nameLength);

      content->mName = XQConversions::s60DescToQString(*name);

      CleanupStack::PopAndDestroy(name);

    }

    // get screenshot

    TInt screenshotHandle = dataStream.ReadInt32L();

    CFbsBitmap *screenshot = new (ELeave) CFbsBitmap;

    CleanupStack::PushL(screenshot);

    if (KErrNone == screenshot->Duplicate(screenshotHandle)) {

      content->mScreenshot = QPixmap::fromSymbianCFbsBitmap(screenshot);

    }

    CleanupStack::PopAndDestroy(screenshot);

    // get key

    TInt keyLength(dataStream.ReadInt32L());

    if (0 < keyLength) {

      HBufC8* key = HBufC8::NewLC(keyLength);

      TPtr8 des(key->Des());

      dataStream.ReadL(des, keyLength);

      content->mKey = XQConversions::s60Desc8ToQByteArray(*key);

      CleanupStack::PopAndDestroy(key);

    }

    // get other values

    content->mActive = dataStream.ReadInt32L();

    content->mClosable = dataStream.ReadInt32L();    

}

void TsTaskMonitorPrivate::HandleRunningAppChange()

{

    emit q_ptr->taskListChanged();

}

void TsTaskMonitorPrivate::openTask(const QByteArray &key)

{

    TPtrC8 desC(reinterpret_cast<const TUint8*>(key.constData()), key.length());

    mClient->OpenTask(desC);

}

void TsTaskMonitorPrivate::closeTask(const QByteArray &key)

{

    TPtrC8 desC(reinterpret_cast<const TUint8*>(key.constData()), key.length());

    mClient->CloseTask(desC);

}