/*

* 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:   ?Description

*

*/

#ifndef C_NCDFILEDOWNLOADOPERATIONPROXY_H	

#define C_NCDFILEDOWNLOADOPERATIONPROXY_H

#include "ncdbaseoperationproxy.h"

#include "ncdfiledownloadoperation.h"

#include "ncdoperationimpl.h"

class MNcdFileDownloadOperationObserver;

class CNcdNodeProxy;

class CNcdFileDownloadOperationProxy : 

    public CNcdOperation< MNcdFileDownloadOperation >

    {

public:

    /**

     * Constructor

     *

     * @param aSession is the session that is used between

     *                 the proxy and the server.

     * @param aHandle is the handle that identifies the serverside

     *                object that this proxy uses.

     * @param aRemoveHandler An observer that is called during destruction.

     * @param aNode The node this operation was started from.

     */    

    static CNcdFileDownloadOperationProxy* NewL( MCatalogsClientServer& aSession,

                        TInt aHandle,

                        MNcdOperationProxyRemoveHandler* aRemoveHandler,

                        CNcdNodeProxy* aNode,

                        CNcdNodeManagerProxy* aNodeManager,

                        const TDesC& aTargetFilename,

                        MNcdFileDownloadOperationObserver* aObserver,

                        TNcdDownloadDataType aDataType );

    /**

     * Constructor

     *

     * @param aSession is the session that is used between

     *                 the proxy and the server.

     * @param aHandle is the handle that identifies the serverside

     *                object that this proxy uses.

     * @param aRemoveHandler An observer that is called during destruction.

     * @param aNode The node this operation was started from.

     */

    static CNcdFileDownloadOperationProxy* NewLC(  MCatalogsClientServer& aSession,

                        TInt aHandle,

                        MNcdOperationProxyRemoveHandler* aRemoveHandler,

                        CNcdNodeProxy* aNode,

                        CNcdNodeManagerProxy* aNodeManager,

                        const TDesC& aTargetFilename,

                        MNcdFileDownloadOperationObserver* aObserver,

                        TNcdDownloadDataType aDataType );

public: // From MNcdFileDownloadOperation

    /**

     * @see MNcdFileDownloadOperation::TargetFileName()

     */    

    const TDesC& TargetFileName() const;

    /**

     * @see MNcdFileDownloadOperation::PauseL()

     */

    void PauseL();

    /**

     * @see MNcdFileDownloadOperation::ResumeL()

     */

    void ResumeL();

    /**

     * @see MNcdFileDownloadOperation::IsPaused()

     */

    TBool IsPaused();

    /**

     * @see MNcdDownloadOperation::IsPausableL()

     */

    TBool IsPausableL();

    /**

     * @see MNcdFileDownloadOperation::DownloadDataType()

     */

    TNcdDownloadDataType DownloadDataType() const;

public: // From MNcdOperation

    /**

     * @see MNcdOperation::OperationType()

     */

    TNcdInterfaceId OperationType() const;

protected: // Constructor and destructor

    /**

     * Constructor

     *

     */

    CNcdFileDownloadOperationProxy( TNcdDownloadDataType aDataType );

    virtual ~CNcdFileDownloadOperationProxy();

    /**

     * ConstructL

     *

     * @param aSession is the session that is used between

     *                 the proxy and the server.

     * @param aHandle is the handle that identifies the serverside

     *                object that this proxy uses.

     * @param aRemoveHandler An observer that is called during destruction.

     * @param aNode The node this operation was started from.

     */         

    void ConstructL( MCatalogsClientServer& aSession,

        TInt aHandle,

        MNcdOperationProxyRemoveHandler* aRemoveHandler,

        CNcdNodeProxy* aNode,

        CNcdNodeManagerProxy* aNodeManager,

        MNcdFileDownloadOperationObserver* aObserver,

        const TDesC& aTargetFilename );

protected: // From CNcdBaseOperationProxy

    /**

     * @see CNcdBaseOperationProxy::ProgressCallback()

     */

    void ProgressCallback();

    /**

     * @see CNcdBaseOperationProxy::QueryReceivedCallback()

     */

    void QueryReceivedCallback( CNcdQuery* aQuery );

    /**

     * @see CNcdBaseOperationProxy::CompleteCallback()

     */

    void CompleteCallback( TInt aError );

    /**

     * @see CNcdBaseOperationProxy::CreateInitializationBufferL()

     */    

    HBufC8* CreateInitializationBufferL();

    /**

     * @see CNcdBaseOperationProxy::InitializationCallback()    

     */

    void InitializationCallback( RReadStream& aReadStream, 

        TInt aDataLength );    

private: // data

    /**

     * Operation observer, for callbacks.

     * Observer not own.

     */    

    MNcdFileDownloadOperationObserver* iObserver;

    // Name of the target file      

    HBufC* iTargetFilename;

    // Pause-state of the download

    TBool iIsPaused;

    TNcdDownloadDataType iDataType;

    };

#endif // C_NCDFILEDOWNLOADOPERATIONPROXY_H