/*

* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:  Declaration of CPushContentHandlerBase.

*

*/

#ifndef __CPUSHCONTENTHANDLERBASE_H__

#define __CPUSHCONTENTHANDLERBASE_H__

// INCLUDE FILES

#include <CContentHandlerBase.h>

#include <E32Base.h>

#include <msvstd.h>

#include <msvapi.h>

// FORWARD DECLARATIONS

class CMsvSession;

class CPushMtmUtil;

class CPushMtmSettings;

class CStringResourceReader;

// CLASS DECLARATION

/** 

* CPushContentHandlerBase class stands as a base class for almost all push 

* content handlers of the Push MTM. It collects the generic functionality of 

* a push content handler, such as garbage collection when receiving new 

* service message, supporting CMsvSession, CPushMtmUtil and CPushMtmSettings 

* objects.

*/

class CPushContentHandlerBase : public CContentHandlerBase, 

                                public MMsvSessionObserver

	{

    protected: // Constructors and destructor

        /**

        * Constructor.

        */

	    CPushContentHandlerBase();

        /**

        * Symbian OS constructor. CActiveScheduler::Add( this ) is called in 

        * this method!!

        */

	    void ConstructL();

        /**

        * Destructor.

        */

	    virtual ~CPushContentHandlerBase();

    protected: // New functions

        /**

        * Do Garbage Collection synchronously.

        * @return None.

        */

	    void DoCollectGarbageL();

        /**

        * Apply Push MTM settings on the message.

        * @return ETrue if the message passed the filtering.

        */

        TBool FilterPushMsgL();

    protected: // From MMsvSessionObserver

        /**

        * Msv session events are handled by this method. This implementation 

        * is empty.

        * @return None.

        */

        void HandleSessionEventL( TMsvSessionEvent aEvent, 

                                  TAny* aArg1, 

                                  TAny* aArg2, 

                                  TAny* aArg3);

    protected: // Data

        CMsvSession* iMsvSession; ///< Session to Message Server. Has.

        CPushMtmUtil* iWapPushUtils; ///< Push Utility. Has.

        CPushMtmSettings* iMtmSettings; ///< Push Settings. Has.

        /// Owned. It uses iMsvSession's RFs!

        CStringResourceReader* iStrRscReader;

    };

#endif	// __CPUSHCONTENTHANDLERBASE_H__