/*

* 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: 

*       Class declaration file

*

*/

#ifndef __EMAILPRECREATION_H__

#define __EMAILPRECREATION_H__

#include "ImumOnlineOperation.h"

#include "SelectionOperationBase.h"

#include <smtpset.h>

#include <ImumInternalApi.h>

class CMsvEmailConnectionProgressProvider;

class CMtmStore;

/**

* CEmailPreCreation

* This operation encapsulates an optimisation that, rather than forcing the

* editor to create a new message every time, we create one invisible blank

* message for each email account in the drafts folder, and tell the editor to

* edit this message.

*/

class CEmailPreCreation : public CBase

    {

    public:

        /**

        * NewL

        * @param CMsvSession&, session reference

        * @return CEmailPreCreation*, self pointer

        */

        static CEmailPreCreation* NewL( CImumInternalApi& aMailboxApi );

        /**

        * ~CEmailPreCreation

        * Destructior

        */

        virtual ~CEmailPreCreation();

    public:

        /**

        * PreCreateBlankEmailL

        * @param TRequestStatus&, request status

        * @param TMsvId, service id

        * @return CMsvOperation*, operation

        */

        CMsvOperation* PreCreateBlankEmailL(

            TMsvId aServiceId,

            TRequestStatus& aStatus );

        /**

        * DeleteAllPreCreatedEmailsL (synchronous)

        * @param TMsvId, service id

        */

        void DeleteAllPreCreatedEmailsL(

            TMsvId aServiceId );

        /**

        * DeleteAllPreCreatedEmailsL

        * Returns NULL if none found.

        * @param TRequestStatus&, request status

        * @param TMsvId, service id

        * @return CMsvOperation*, operation

        */

        CMsvOperation* DeleteAllPreCreatedEmailsL(

            TMsvId aServiceId,

            TRequestStatus& aStatus );

        /**

        * FindPreCreatedEmailL

        * @param TMsvId, service id

        * @param TMsvId, exclude id

        * @return TMsvId, id of found email

        */

        TMsvId FindPreCreatedEmailL(

            TMsvId aServiceId,

            TMsvId aExclude );

    private:

        /**

        * ConstructL

        * @param CMsvSession&, session reference

        */

        void ConstructL();

        /**

         * 

         * @since S60 3.2

         */

        CEmailPreCreation( CImumInternalApi& aMailboxApi );

        /**

        * ServiceUsesMHTMLEncodingL

        * @param TMsvId, service id

        * @return TBool, ETrue if uses HTML encoding

        */

        TBool ServiceUsesMHTMLEncodingL( TMsvId aServiceId );

        /**

        * DeleteEmailWithoutServiceL

        * Deletes all the invisible mail entries which service cannot be found

        */

        void DeleteEmailWithoutServiceL();

    private: // Data

        CImumInternalApi& iMailboxApi;

        CMsvEntry* iEntry;

    };

#endif