/*

* 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:  FreestyleEmailUi download manager model and model item definition.

*

*/

#ifndef __FREESTYLEEMAILUI_DOWNLOADMANAGERMODEL_H__

#define __FREESTYLEEMAILUI_DOWNLOADMANAGERMODEL_H__

// SYSTEM INCLUDES

#include <e32base.h>

//<cmail>

#include "fstreelist.h"

//</cmail>

// INTERNAL INCLUDES

#include "FreestyleEmailUiAttachmentsListModel.h"

// FORWARD DECLARATIONS

class CFreestyleEmailUiAppUi;

class CFSMailMessage;

struct TMessageData

	{

	HBufC* mailSubject;

	RArray<TAttachmentData> mailAttachments;

	TPartData partData;

	TFsTreeItemId treeId;

	};

class CFSEmailUiDownloadManagerModel : public CFSEmailUiAttachmentsModelBase

  {

public:

	static CFSEmailUiDownloadManagerModel* NewL( CFreestyleEmailUiAppUi& aAppUi, MFSEmailUiAttachmentsStatusObserver& aObserver );

	static CFSEmailUiDownloadManagerModel* NewLC(CFreestyleEmailUiAppUi& aAppUi, MFSEmailUiAttachmentsStatusObserver& aObserver );

	~CFSEmailUiDownloadManagerModel();

	TBool RemoveItem( TFsTreeItemId aTreeId );

	void SetItemIdL(TUint aMailIndex, TUint aAttachmentIndex, TFsTreeItemId aTreeId);

	const RArray<TMessageData>& GetModel();

	TInt AttachmentCount() const;

	void SetNodeIdL( TInt aNodeIndex, TFsTreeItemId aTreeItemId );

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

public: // from CFSEmailUiAttachmentsModelBase

    /** 

     * Returns pointer to attachment data of the given tree item.

     * @param aTreeId ID identifying the tree list item.

     * @return Pointer to attachment data, or NULL, if the item was not found.

     */ 

    TAttachmentData* GetItem( TFsTreeItemId aTreeId );

    /**

     * Returns reference to attachment data of given tree list item.

     * @param aTreeId ID identifying the tree list item.

     * @return Reference to attachemtn data.

     * @leave KErrNotFound The given item is not found.

     */

    TAttachmentData& GetItemL( TFsTreeItemId aTreeId );

    TPartData GetMessageL( TFsTreeItemId aTreeId );

    TBool DownloadAllAttachmentsL();

    TBool SaveAllAttachmentsL( const TDesC& fileName );

    void CancelAllDownloadsL();

    TBool IsThereAnyMessageAttachments();

    /**

     * Function can be used to clear items from the model

     * that are related to deleted messages.

     * @return  ETrue if at least one item was removed, EFalse otherwise

     */

    TBool ClearInvalidItemsL();

private:

	CFSEmailUiDownloadManagerModel( CFreestyleEmailUiAppUi& aAppUi, MFSEmailUiAttachmentsStatusObserver& aObserver );

	void ConstructL();

private:

	MFSEmailUiAttachmentsStatusObserver& iObserver;

	RArray<TMessageData> iMails;

	CFSMailClient* iMailClient;

  };

#endif //__FREESTYLEEMAILUI_MAILLISTMODEL_H__