/*
* 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: Contains CNcdNodeDownloadProxy class
*
*/
#ifndef C_NCD_NODE_DOWNLOAD_PROXY_H
#define C_NCD_NODE_DOWNLOAD_PROXY_H
// For the streams
#include <s32mem.h>
#include "ncdinterfacebaseproxy.h"
#include "ncdnodedownload.h"
class CNcdNodeMetadataProxy;
/**
* This class implements the functionality for the
* MNcdNodeDownload interfaces. The interface is provided for
* API users.
*
* @since S60 v3.2
*/
class CNcdNodeDownloadProxy : public CNcdInterfaceBaseProxy,
public MNcdNodeDownload
{
public:
/**
* @param aSession The session between the client proxy and the
* corresponding server object.
* @param aHandle The handle which identifies the server object
* that this proxy uses.
* @param aMetadata Owns and uses the information of this proxy.
* The proxy also keeps track of the refence counts of its objects.
* And handles the deletion of these objects when the total reference
* count reaches zero.
* @return CNcdNodeDownloadProxy* Pointer to the created object
* of this class.
*/
static CNcdNodeDownloadProxy* NewL(
MCatalogsClientServer& aSession,
TInt aHandle,
CNcdNodeMetadataProxy& aMetadata );
/**
* @param aSession The session between the client proxy and the
* corresponding server object.
* @param aHandle The handle which identifies the server object
* that this proxy uses.
* @param aMetadata Owns and uses the information of this proxy.
* The proxy also keeps track of the refence counts of its objects.
* And handles the deletion of these objects when the total reference
* count reaches zero.
* @return CNcdNodeDownloadProxy* Pointer to the created object
* of this class.
*/
static CNcdNodeDownloadProxy* NewLC(
MCatalogsClientServer& aSession,
TInt aHandle,
CNcdNodeMetadataProxy& aMetadata );
/**
* Destructor.
* The destructor is set public. So, the node that owns the Download may
* delete it directly when the reference count of the node reaches zero
* and the destructor of the node is called.
*/
virtual ~CNcdNodeDownloadProxy();
/**
* @return CNcdNodeMetadataProxy& Gives the proxy that owns this class object.
*/
CNcdNodeMetadataProxy& Metadata() const;
/**
* Gets the data for descriptors from the server side. This function is
* called to update proxy data. The function uses the protected virtual
* internalize functions. So, the child classes may provide their own
* implementations for internalizations of certain metadata.
*/
void InternalizeL();
public: // MNcdNodeDownload
/**
* @see MNcdNodeDownload::IsDownloadedL
*/
virtual TBool IsDownloadedL() const;
/**
* @see MNcdNodeDownload::DownloadContentL
*/
virtual MNcdDownloadOperation* DownloadContentL(
MNcdDownloadOperationObserver& aObserver );
protected:
/**
* Constructor
*
* @param aSession The session between the client proxy and the
* corresponding server object.
* @param aHandle The handle which identifies the server object
* that this proxy uses.
* @param aMetadata Owns and uses the information of this proxy.
* The proxy also keeps track of the refence counts of its objects.
* And handles the deletion of these objects when the total reference
* count reaches zero.
* @return CNcdNodeDownloadProxy* Pointer to the created object
* of this class.
*/
CNcdNodeDownloadProxy(
MCatalogsClientServer& aSession,
TInt aHandle,
CNcdNodeMetadataProxy& aMetadata );
/**
* ConstructL
*/
virtual void ConstructL();
// These functions are used to update the data of this class object
/**
* @param aStream This stream will contain all the data content for
* this class object. The stream is gotten from the server side. The
* memeber variables will be updated according to the data from
* the stream.
*/
virtual void InternalizeDataL( RReadStream& aStream );
private:
// Prevent if not implemented
CNcdNodeDownloadProxy( const CNcdNodeDownloadProxy& aObject );
CNcdNodeDownloadProxy& operator =( const CNcdNodeDownloadProxy& aObject );
private: // data
CNcdNodeMetadataProxy& iMetadata;
TBool iIsDownloaded;
};
#endif // C_NCD_NODE_DOWNLOAD_PROXY_H