/*

* Copyright (c) 2006 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:  Network identity related prioritizer.

*

*/

#ifndef C_AIPUBLISHPRIORITIZER_H

#define C_AIPUBLISHPRIORITIZER_H

#include <e32def.h>

#include "ainwidpriorities.h"

#include "aiprioritizer.h"

#include "aipropertyextension.h"

/**

 *  @ingroup group_devicestatusplugin

 *

 *  Network identity related prioritizer.

 *

 *  This class is used as proxy between publishers which publish data that

 *  needs to be priorised and content observers. It keeps record of published

 *  data and decides if new published data has high enough priority to go 

 *  through to content observer.

 *

 *  @since S60 3.2

 */

class CAiPublishPrioritizer : public CBase, public MAiPublishPrioritizer

    {

public:

    static CAiPublishPrioritizer* NewL( MAiContentObserver& aContentObserver,

                                        MAiPropertyExtension& aPropertyExtension );

    virtual ~CAiPublishPrioritizer();

    // from MAiPublishPrioritizer

    void TryToPublishL( MAiPublisherBroadcaster& aBroadcaster, 

                        TInt aContent, 

                        TInt aResource, 

                        TInt aPriority );

    void TryToPublishL( MAiPublisherBroadcaster& aBroadcaster, 

                        TInt aContent, 

                        const TDesC16& aText, 

                        TInt aPriority );

    void TryToPublishL( MAiPublisherBroadcaster& aBroadcaster, 

                        TInt aContent, 

                        const TDesC8& aBuf, 

                        TInt aPriority );

    void TryToCleanL( MAiPublisherBroadcaster& aBroadcaster, 

                        TInt aContent, 

                        TInt aPriority );

    TInt NextPriority() const;

private:

    CAiPublishPrioritizer( MAiContentObserver& aContentObserver,

                            MAiPropertyExtension& aPropertyExtension );

private: // data

    /**

     * Content observer.

     */

    MAiContentObserver& iContentObserver;

    /**

     * Property extension.

     */

    MAiPropertyExtension& iPropertyExtension;

    /// Current priority

    TInt iPriority;

    };

#endif // C_AIPUBLISHPRIORITIZER_H