/*

* 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:  CSconAsyncHandler header

*

*/

#ifndef SCONASYNCHANDLER_H_

#define SCONASYNCHANDLER_H_

#include <e32base.h>

#include <f32file.h>

#include <stringpool.h>

#include "cscontimeout.h"

class CSmlDataStore;

class CSconSyncRelationship;

class CSmlDataProvider;

class CNSmlDataItemUidSet;

class CSmlDataStoreFormat;

NONSHARABLE_CLASS ( CSconAsyncHandler ): public CActive, MTimeOutObserver

{

public:

    static CSconAsyncHandler* NewL();

	~CSconAsyncHandler();

	void HandleServiceL( const RMessage2& aMessage );

private: // From CActive 

    void RunL();

    TInt RunError(TInt aError);

    void DoCancel();

private: // From MTimeOutObserver

    void TimeOut();

private:

	CSconAsyncHandler();

	void ConstructL();

	void HandleChunkMessage();

    void ListAllImplementationsL();

    void OpenStoreL();

	void OpenItemL();

	void OpenItemCompletedL( TInt aError );

	void CreateItemL();

	void CreateItemCompletedL( TInt aError );

	void ReplaceItemL();

	void ReplaceItemCompletedL( TInt aError );

	void MoveItemL();

	void DeleteItemL();

	void SoftDeleteItemL();

	void DeleteAllItemsL();

	void ReadParentL();

	void ReadParentCompletedL( TInt aError );

    void HasHistoryL();

    void AddedItemsL();

    void DeletedItemsL();

    void SoftDeletedItemsL();

    void ModifiedItemsL();

    void MovedItemsL();

	//void ListChangesL();

	void ResetChangeInfoL();

	void CommitChangeInfoL();

	void CloseStore();

	void SetSyncTimeStampL();

	void GetSyncTimeStampL();

	void ExportStoreFormatL();

	void SetRemoteStoreFormatL();

	void LeaveIfNoInstanceL();

	void DoCloseStore();

	void CleanOldStoresL();

	void CompleteRequest( TInt aError );

private:

    RChunk  iChunk;

    RStringPool            iStringPool;

    CSmlDataStoreFormat*   iStoreFormat;

    CSmlDataProvider*      iDataProvider;

    CSmlDataStore*         iDataStore;

    CSconSyncRelationship* iContext;

    RFs                    iFs;

	RMessage2              iMessage;

	// for committing changes

	CNSmlDataItemUidSet*   iItems;

	// for opening item

	TBool iFieldChange;

	TInt iSize;

	TInt iParent;

	TBuf8<64> iMimeType;

	TBuf8<64> iMimeVer;

	// for creating item

	TSmlDbItemUid  iNewItem;

	HBufC8*        iWriteData;

	TBool          iCommitInProgress;

	CCSconTimeOut*         iTimeOut;

	TBool                  iForceCancel;

};

#endif /*SCONASYNCHANDLER_H_*/