/*

* 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 "tstaskmonitorclient.h"

#include "tsapplicationtask.h"

#include "tsutils.h"

using TaskSwitcher::CleanupResetAndDestroyPushL;

TsTaskMonitorPrivate::TsTaskMonitorPrivate(TsTaskMonitor *q) : q_ptr(q), mClient(0)

{

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

    mClient->Subscribe(*this);

}

TsTaskMonitorPrivate::~TsTaskMonitorPrivate()

{

    mClient->CancelSubscribe();

}

QList< QSharedPointer<TsTask> > TsTaskMonitorPrivate::taskList()

{

    QList< QSharedPointer<TsTask> > tasks;

    QT_TRAP_THROWING (    

        RPointerArray<CTsFswEntry> entries;   

        CleanupResetAndDestroyPushL<CTsFswEntry>(entries);

        mClient->TaskListL(entries);

        // TsTask claims ownership of CTsFswEntry, so we have to remove entries from 

        // entries array after adding task to tasks array to prevent double delete of

        // CTsFswEntry objects in case of leave (for example due to OOM) in the middle 

        // of the loop below.

        while (entries.Count()) {

            CTsFswEntry *firstEntry = entries[0];

            CleanupStack::PushL(firstEntry);

            entries.Remove(0);

            // @todo switch by entry type

            QT_TRYCATCH_LEAVING(tasks.append(QSharedPointer<TsTask>(new TsApplicationTask(firstEntry))));

            CleanupStack::Pop(firstEntry);

        }

        CleanupStack::PopAndDestroy(&entries);    

    );

    return tasks;

}

void TsTaskMonitorPrivate::HandleRunningAppChange()

{

    emit q_ptr->taskListChanged();

}