/*

 * 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: Proxy model for view in add to homescreen mode.

 *

 */

#ifndef HSADDMODEPROXYMODEL_H

#define HSADDMODEPROXYMODEL_H

#include <QSortFilterProxyModel>

#include <caquery.h>

#include <caentry.h>

#include <QAbstractItemView>

#include "hsmenustates_global.h"

class CaNotifier;

class HsAddModeProxyModel : public QSortFilterProxyModel

{

    Q_OBJECT

    HS_STATES_TEST_FRIEND_CLASS(MenuStatesTest)

public:

    HsAddModeProxyModel(QObject *parent = 0);

    ~HsAddModeProxyModel();

    void initilizeCwrtWidgetCache();

    void setSourceModel(QAbstractItemModel *sourceModel);

signals:

    void scrollTo(int row, QAbstractItemView::ScrollHint hint =

        QAbstractItemView::EnsureVisible);

    void countChange();

private slots:

    void updateCacheOnAddWidget(const QString &uri, const QVariantHash &preferences);

    void updateCacheOnRemoveWidget(const QString &uri, const QVariantHash &preferences);

    void updateEntryStatus(const CaEntry &entry, ChangeType changeType);

private:

    virtual bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const;

    static int findCwrtWidgetEntryId(const QVariantHash &preferences);

    QHash<int,bool> mCwrtWidgetCache;

    CaQuery mQuery;

    QScopedPointer<CaNotifier> mNotifier;

};

#endif //HSADDMODEPROXYMODEL_H