/*

 * 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 "nmapiheaders.h"

namespace EmailClientApi

{

NmApiEnvelopeListingPrivate::NmApiEnvelopeListingPrivate(const quint64 folderId, const quint64 mailboxId, QObject *parent)

:QObject(parent),

mFolderId(folderId), 

mMailboxId(mailboxId), 

mIsRunning(false),

mEngine(NULL)

{

    NM_FUNCTION;

    mEngine = NmApiEngine::instance();

    Q_CHECK_PTR(mEngine);

}

NmApiEnvelopeListingPrivate::~NmApiEnvelopeListingPrivate()

{

    NM_FUNCTION;

    NmApiEngine::releaseInstance(mEngine);

}

/*! 

   \brief Fills envelopes to the input parameter.

    Caller gets ownership of envelopes. Returns true if results were available.

 */

bool NmApiEnvelopeListingPrivate::envelopes(QList<EmailClientApi::NmApiMessageEnvelope> &envelopes)

{

    NM_FUNCTION;

    bool ret(mIsRunning);

    envelopes.clear();

    while (!mEnvelopes.isEmpty()) {

        envelopes << mEnvelopes.takeFirst();

    }

    mIsRunning = false;

    return ret;

}

/*!

   \brief It fetches envelopes from engine. 

   Because it uses NmApiMessageEnvelope with sharedData we don't need care about release memory.

   \return Count of envelopes 

 */

qint32 NmApiEnvelopeListingPrivate::listEnvelopes()

{

    NM_FUNCTION;

    mIsRunning = true;

    mEnvelopes.clear();

    mEngine->listEnvelopes(mMailboxId, mFolderId, mEnvelopes);

    return mEnvelopes.count();

}

/*!

   \brief Return info if listing is running

 */

bool NmApiEnvelopeListingPrivate::isRunning() const

{

    return mIsRunning;

}

/*!

   \brief Clears list of envelopes.

 */

void NmApiEnvelopeListingPrivate::cancel() 

{

    mIsRunning = false;

    mEnvelopes.clear();

}

}