/*

* Copyright (c) 2004 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:

*

*/

#ifndef C_CONTENTOBSERVER_H

#define C_CONTENTOBSERVER_H

#include <e32base.h>

#include <aicontentobserver.h>

#include "ccontentcache.h"

class CContentObserver : public CBase, public MAiContentObserver

    {

public:

        static CContentObserver& InstanceL();

        static void Release();

        static void Reset();

        CContentCache* GetContent( TInt aContentId, TBool aClean = EFalse );

        CContentCache* GetLastContent( TInt aContentId, TBool aClean = EFalse );

		    /**

		     *

		     */

		    TInt SetProperty( CHsContentPublisher& aPlugin,

		        const TDesC8& aElementId,

		        const TDesC8& aPropertyName,

		        const TDesC8& aPropertyValue );

		    /**

		     *

		     */

		    TInt SetProperty( CHsContentPublisher& aPlugin,

		        const TDesC8& aElementId,

		        const TDesC8& aPropertyName,

		        const TDesC8& aPropertyValue,  

		        MAiContentObserver::TValueType aValueType);           

private:

        ~CContentObserver();

        TInt StartTransaction(TInt aTxId);

        TInt Commit(TInt aTxId);

        TInt CancelTransaction(TInt aTxId);

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

        TInt Publish(CHsContentPublisher& aPlugin, TInt aContent, TInt aResource, TInt aIndex );

        TInt Publish(CHsContentPublisher& aPlugin, TInt aContent, const TDesC16& aText, TInt aIndex );

        TInt Publish(CHsContentPublisher& aPlugin, TInt aContent, const TDesC8& aBuf, TInt aIndex );

        TInt Publish(CHsContentPublisher& aPlugin, TInt aContent, RFile& aFile, TInt aIndex );

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

        TAny* Extension(TUid aUid);

        TBool RequiresSubscription( const THsPublisherInfo& aPublisherInfo ) const;

private:

        RPointerArray<CContentCache> iCache;

    };

#endif      //  C_CONTENTOBSERVER_H

// End of file