/*

* 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 "nmuiengineheaders.h"

/*!

    \class NmFolderListModel

    \brief The NmFolderListModel class represents data model for mailbox list.

    @alpha

    The NmFolderListModel class uses NmFolderMetaData class to represent data returned in its' data

    method to get all information needed for one list row for a widget by calling the method once.

*/

class NmFolderListModelPrivate

{

public:

    NmFolderListModelPrivate();

    ~NmFolderListModelPrivate();

public:

    QList<NmFolderMetaData*> mMetaDataList;

};

NmFolderListModelPrivate::NmFolderListModelPrivate()

{

    NM_FUNCTION;

}

NmFolderListModelPrivate::~NmFolderListModelPrivate()

{

    NM_FUNCTION;

    while (!mMetaDataList.isEmpty()) {

        delete mMetaDataList.takeLast();

    }

}

/*!

	Constructor

 */

NmFolderListModel::NmFolderListModel(NmDataManager &dataManager, QObject *parent) 

:QAbstractListModel(parent),

mDataManager(dataManager)

{

    NM_FUNCTION;

    d = new NmFolderListModelPrivate;

}

/*!

	Destructor

 */

NmFolderListModel::~NmFolderListModel()

{

    NM_FUNCTION;

    delete d;

}

/*!

    Returns parent index.

 */

QModelIndex NmFolderListModel::parent(const QModelIndex &child) const

{

    NM_FUNCTION;

    Q_UNUSED(child);

    return QModelIndex();

}

/*!

    Returns the number of list boxes for the current protocol plugin.

 */

int NmFolderListModel::rowCount(const QModelIndex &parent) const

{

    NM_FUNCTION;

    Q_UNUSED(parent);

    return d->mMetaDataList.size();

}

/*!

    This returns always 1.

 */

int NmFolderListModel::columnCount(const QModelIndex &parent) const

{

    NM_FUNCTION;

    Q_UNUSED(parent);

	return 1;

}

/*!

    Returns data specified by \a index. Only Qt::DisplayRole is supported in \a role.

    The refresh method must have been called before this method can return any real data.

 */

QVariant NmFolderListModel::data(const QModelIndex &index, int role) const

{

    NM_FUNCTION;

    if (!index.isValid())

        return QVariant();

    if (index.row() >= rowCount())

        return QVariant();

    if (role == Qt::DisplayRole) {

        NmFolderMetaData* meta = d->mMetaDataList.at(index.row());

        // pass address for meta data structure, good enough to run in a single thread.

        int addr = (int)meta;

        return (QVariant)addr;

    }

    else

        return QVariant();

}

/*!

    This refreshes the data of the model.

 */

void NmFolderListModel::refresh(

        QList<NmFolder*>& folderList)

{

    NM_FUNCTION;

    while (!d->mMetaDataList.isEmpty()) {

        delete d->mMetaDataList.takeLast();

    }

    d->mMetaDataList.clear();

    QList<NmFolder*>::const_iterator it = folderList.constBegin();

    QList<NmFolder*>::const_iterator itEnd = folderList.constEnd();

    while ( it != itEnd) {

        NmFolder* myFolder = *it;

        NmFolderMetaData* newMeta = new NmFolderMetaData();

        newMeta->setName( myFolder->name() );

        newMeta->setId( myFolder->folderId() );

        d->mMetaDataList.append( newMeta );

        it++;

    }

}