/*

* 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 __EMAILMSGSIZEROPERATION_H__

#define __EMAILMSGSIZEROPERATION_H__

#include <eikdialg.h>

#include <msvapi.h> // CMsvOperation

#include <miutmsg.h> // CImEmailMessage

#include <ImumInternalApi.h>        // CImumInternalApi

#include "PROGTYPE.H"

class CEikonEnv;

class CImEmailMessage;

class CImBaseEmailSettings;

class CContactItemFieldSet;

class CImIAPPreferences;

const TInt KSizerOpPriority = CActive::EPriorityStandard;

/**

* TMsvAttachmentNamesArray

*

*/

class TMsvAttachmentNamesArray : public MDesC16Array

    {

    public:

        /**

        * C++ constructor

        * TMsvAttachmentNamesArray

        * @param const CArrayFixFlat<CMsvAttachment>&, attachment list

        */

        TMsvAttachmentNamesArray(

            const CArrayFixFlat<CMsvAttachment>& aAttachmentList );

        /**

        * MdcaCount

        * From MDesC16Array

        * @return TInt, item count

        */

        virtual TInt MdcaCount() const;

        /**

        * MdcaPoint

        * From MDesC16Array'

        * @return TPtrC16, item text

        */

        virtual TPtrC16 MdcaPoint(TInt aIndex) const;

    public:

        const CArrayFixFlat<CMsvAttachment>& iAttachments;

    };

/**

* Progress for email message sizer op.

*

*/

class TEmailMsgSizerProgress

    {

    public:

        /**

        * TEmailMsgSizerProgress

        * C++ constructor

        */

        TEmailMsgSizerProgress()

            : iProgTypeId(EUiProgTypeSizingMsg), iErrorCode(KErrNone) {}        // progtype.h

    public:

        TInt iProgTypeId;

        TInt iErrorCode;

    };

/**

* Email Message Sizer Operation.

* Walks a message tree asynchronously and provides accessors for

* message part sizes after completion.

*/

class CEmailMsgSizerOperation : public CMsvOperation

    {

    public:

        /**

        * NewL

        * @param CMsvSession&, session reference

        * @param TRequestStatus&, request status

        * @param TMsvId, entry id

        * @param TUid, Mtm id

        * @return CEmailMsgSizerOperation*, self pointer

        */

        static CEmailMsgSizerOperation* NewL(

            CImumInternalApi& aMailboxApi,

            TRequestStatus& aObserverRequestStatus,

            TMsvId aMsgId,

            TUid aMtm);

        /**

        * ~CEmailMsgSizerOperation

        * Destructor

        */

        virtual ~CEmailMsgSizerOperation();

        /**

        * ProgressL

        * @return TDesC8&, progress

        */

        virtual const TDesC8& ProgressL();

        /**

        * TotalMessageSize

        * Valid after op completes.

        * @return TInt32, message size

        */

        TInt32 TotalMessageSize() const;

        /**

        * BodyTextSizeL

        * Valid after op completes.

        * @return TInt32, body size

        */

        TInt32 BodyTextSizeL() const;

        /**

        * SizeOfAllAttachmentsL

        * Valid after op completes.

        * @return TInt32, attachments size

        */

        TInt32 SizeOfAllAttachmentsL() const;

        /**

        * AttachmentSizeL

        * Valid after op completes.

        * @param TMsvId, attachment id

        * @return TInt32, attachment size

        */

        TInt32 AttachmentSizeL(TMsvId aAttachmentId) const;

        /**

        * HasAttachmentLargerThanL

        * Returns ETrue if there is bigger attachement than aSize found

        * by this operation.

        * @param TInt32, size

        * @return TBool, ETrue if has attachments larger than given size

        */

        TBool HasAttachmentLargerThanL( TInt32 aSize ) const;

    protected:

        /**

        * DoCancel

        * From CActive

        */

        virtual void DoCancel();

        /**

        * RunL

        * From CActive

        */

        virtual void RunL();

    private:

        /**

        * CEmailMsgSizerOperation

        * C++ constructor

        * @param CMsvSession&, session reference

        * @param TRequestStatus&, request status

        * @param TUid, Mtm id

        */

        CEmailMsgSizerOperation(

            CImumInternalApi& aMailboxApi,

            TRequestStatus& aObserverRequestStatus,

            TUid aMtm);

        /**

        * ConstructL

        * Symbian constructor

        * @param TMsvId, message id

        */

        void ConstructL( TMsvId aMsgId );

    private:

        /**

        *

        * @since S60 3.0

        */

        TInt GetSizeL(

             const TInt aIndex,

             MMsvAttachmentManager& aList ) const;

    private:

        CMsvEntry* iMsgEntry;

        CImEmailMessage* iEmailMsg;

        TPckgBuf<TEmailMsgSizerProgress> iProgress;

    };

#endif // __EMAILMSGSIZEROPERATION_H__