/*

* Copyright (c) 2007 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: This file defines class MComposerFetchLogicCallback.

*

*/

#ifndef __FSCOMPOSERFETCHLOGIC_H__

#define __FSCOMPOSERFETCHLOGIC_H__

#include<e32base.h>

//#include <aknwaitnotewrapper.h> //cmail

#include"FreestyleEmailDownloadInformationMediator.h"

class CFSMailClient;

class CFSMailBox;

class CFSMailFolder;

class CFSMailMessage;

class CFreestyleEmailUiAppUi;

enum TComposerFetchState

	{

	EStateNotStarted,	// not started

	EStateSmartReply,	// smart reply test

	EStateSmartForward, // smart forward test

	EStateStructure,	// fetch message structure

	EStateBody,			// fetch message body

	EStateAttachments   // fetch attachments

	};

/**

* MComposerFetchLogicCallback

*/

class MComposerFetchLogicCallback

	{

public:

    // Returns ETrue if the corresponding CFsComposerFetchLogic object has

    // been deleted.

    virtual TBool FetchLogicComplete( TComposerFetchState aState, TInt aError ) = 0;

	};

/**

* CFsComposerFetchLogic

*/

class CFsComposerFetchLogic: 

    public CBase, 

    //public MProgressDialogCallback, //<cmail>

	public MFSEmailDownloadInformationObserver, 

	public MFSMailRequestObserver

	{

public: // new public methods

    static CFsComposerFetchLogic* NewL( CFSMailClient& aClient, 

                                        TFSMailMsgId aMailBoxId, TFSMailMsgId aFolderId, TFSMailMsgId aMessageId, 

                                        MComposerFetchLogicCallback& aObserver,

                                        CFreestyleEmailUiAppUi& aAppUi );

    ~CFsComposerFetchLogic();

    void RunReplyLogicL();

    void RunForwardLogicL();

    void CancelFetchings(); //<cmail>

public: // from MFSMailRequestObserver

    void RequestResponseL( TFSProgress aEvent, TInt aRequestId );

public: // from MFSEmailDownloadInformationObserver

    void RequestResponseL( const TFSProgress& aEvent, const TPartData& aPart );

public: // from MProgressDialogCallback <cmail> //MAknBackgroundProcess

    /**

    * Completes one cycle of the process.

    */

    //virtual void StepL(); <cmail>

    /**

    * Return true when the process is done.

    */

    //virtual TBool IsProcessDone() const; <cmail>

    /**

    * Callback when the process is finished.

    */

    //virtual void ProcessFinished();<cmail>

    /**

    * Callback when the dialog is dismissed

    */

    //void DialogDismissedL( TInt aButtonId ); <cmail>

    /**

    * Handles error occurred in StepL

    * @param aError error code that occurred

    * @return translated error code. If this is != KErrNone process will be stopped.

    */

    //virtual TInt CycleError( TInt aError ); <cmail>

private:

    CFsComposerFetchLogic( CFSMailClient& aClient, 

                           MComposerFetchLogicCallback& aObserver,

                           CFreestyleEmailUiAppUi& aAppUi );

    void ConstructL( TFSMailMsgId aMailBoxId, TFSMailMsgId aFolderId, 

                     TFSMailMsgId aMessageId );

    void RunStateL();

    void ShowWaitNoteL();

        /**

        * AskIfUserWantsToFetchAttachmentsL

        * @return ETrue if user select yes

        */

//        TBool AskIfUserWantsToFetchAttachmentsL();

    //void CancelFetchings(); <cmail>

    void Complete();

private:

    enum TRunMode

        {

        EModeInvalid,

        EModeReply,

        EModeForward

        };

    TRunMode iRunMode;

    TComposerFetchState iState;

	CFreestyleEmailUiAppUi& iAppUi;	

    CFSMailClient& iClient;

    MComposerFetchLogicCallback& iObserver;

    //<cmail> using different wait note than freestyle

    //CAknWaitNoteWrapper* iAsyncWaitNote;

    CAknWaitDialog* iAsyncWaitNote;

    TBool iFetchingCancelGoingOn;

    //</cmail>

    TBool iFetchComplete;

    CFSMailBox* iMailBox;

    CFSMailFolder* iFolder;

    CFSMailMessage* iMessage;

    TInt iError;

    TInt iStructureRequestId;

    TBool iFetchingStructure;

    TInt iBodyRequestId;

    TBool iFetchingBody;

    TBool iRequestCompleted; //<cmail>

    /**

    * part data for those parts that are being downloaded

    */

    RArray<TPartData> iParts;

	};

#endif