/*

* 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: 

*       Fetch operation with checking of available memory and disk space

*

*/

#ifndef __IMAP4SIZEANDFETCHOP_H__

#define __IMAP4SIZEANDFETCHOP_H__

#include <ImumInternalApi.h>        // CImumInternalApi

#include <imapset.h>

#include <imapcmds.h>

#include "IMAPPRGR.H"

#include "ImumOnlineOperation.h"

#include "Imap4MtmUi.hrh" // KImpuIMAPFolderNameLength

/**

* Fetch operation with checking of available memory and disk space.

*/

class CImap4SizeAndFetchOp : public CImumOnlineOperation

    {

    public:

        /**

        *

        */

        static CImap4SizeAndFetchOp* NewL(

            CImumInternalApi& aMailboxApi,

            TRequestStatus& aStatus,

            MMsvProgressReporter& aReporter,

            TMsvId aService,

            TInt aFunctionId,

            const TImImap4GetMailInfo& aGetMailInfo,

            const CMsvEntrySelection& aSel);

        /**

        *

        */

        virtual ~CImap4SizeAndFetchOp();

        /**

        *

        */

        virtual const TDesC8& GetErrorProgressL(TInt aError);

    protected:

        /**

        *

        */

        CImap4SizeAndFetchOp(

            CImumInternalApi& aMailboxApi,

            TRequestStatus& aStatus,

            MMsvProgressReporter& aReporter,

            TMsvId aService,

            TInt aFunctionId,

            const TImImap4GetMailInfo& aGetMailInfo);

        /**

        *

        */

        void ConstructL(const CMsvEntrySelection& aSel);

        /**

        *

        */

        virtual void DoRunL();

        /**

        *

        */

        void DoSizeMessageL();

        /**

        *

        */

        void DoSizeNextMessageL();

        /**

        *

        */

        void DoFetchMessageL();

        /**

        *

        */

        TBool CheckMessageSizeL();

    private:

        enum TSizeAndFetchState { EStateIdle, EStateSizeMsg, EStateFetchMsg };

        TSizeAndFetchState iState;

        TPckgBuf<TImap4CompoundProgress> iProgressBuf;

        CMsvEntrySelection* iSelection;

        const TInt iFunctionId;

        const TImImap4GetMailInfo iGetMailInfo;

        TInt32   iTotalSizeToFetch;

        TInt    iCurrentMsgToSize;

    };

#endif