/*

* 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:  Active Idle Content Observer interface multiplexer interface.

*

*/

#ifndef C_AIMULTICONTENTOBSERVER_H

#define C_AIMULTICONTENTOBSERVER_H

#include <e32base.h>

#include "aicontentobserver.h"

// Forward declarations

class CAiContentObserverOptimizer;

/**

 *  @ingroup group_devicestatusplugin

 *

 * Active Idle Content Observer interface multiplexer.

 *

 * @see MAiContentObserver

 * @since S60 3.2

 */

class CAiMultiContentObserver : 

        public CBase,

        public MAiContentObserver

    {

public:

    static CAiMultiContentObserver* NewL();

    ~CAiMultiContentObserver();

    /**

     * Adds a new observer to this multiplexer.

     */

    void AddObserverL(MAiContentObserver& aObserver);

//from base class MAiContentObserver

    TInt StartTransaction( TInt aTxId );

    TInt Commit( TInt aTxId );

    TInt CancelTransaction( TInt aTxId );

    TBool CanPublish( MAiPropertyExtension& aPlugin, TInt aContent, TInt aIndex );

    TInt Publish( MAiPropertyExtension& aPlugin, TInt aContent,

                  TInt aResource, TInt aIndex );

    TInt Publish( MAiPropertyExtension& aPlugin, TInt aContent,

                  const TDesC16& aText, TInt aIndex );

    TInt Publish( MAiPropertyExtension& aPlugin, TInt aContent,

                  const TDesC8& aBuf, TInt aIndex );

    TInt Publish( MAiPropertyExtension& aPlugin, TInt aContent,

                  RFile& aFile, TInt aIndex );

    TInt Clean( MAiPropertyExtension& aPlugin, TInt aContent, TInt aIndex );

    TAny* Extension( TUid aUid );

    TBool RequiresSubscription( const TAiPublisherInfo& aPublisherInfo ) const;

    TInt SetProperty( MAiPropertyExtension& aPlugin,

               const TDesC8& aElementId,

               const TDesC8& aPropertyName,

               const TDesC8& aPropertyValue );

    TInt SetProperty( MAiPropertyExtension& aPlugin,

               const TDesC8& aElementId,

               const TDesC8& aPropertyName,

               const TDesC8& aPropertyValue,  

               MAiContentObserver::TValueType aValueType);

private:

    CAiMultiContentObserver();

    void ConstructL();

private: // data

    /**

     * Array of observers.

     * Own.

     */

    RPointerArray<CAiContentObserverOptimizer> iObserverOptimizers;

    };

#endif // C_AIMULTICONTENTOBSERVER_H