--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ncdengine/inc/ncdnodedownload.h	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,98 @@
+/*
+* 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 MNcdNodeDownload interface
+*
+*/
+
+
+#ifndef M_NCD_NODE_DOWNLOAD_H
+#define M_NCD_NODE_DOWNLOAD_H
+
+
+#include "catalogsbase.h"
+#include "ncdinterfaceids.h"
+
+
+class MNcdDownloadOperation;
+class MNcdDownloadOperationObserver;
+
+/**
+ *  Provides functions for the node that may contains content that can be downloaded.
+ *  Downloading of the content may be done directly. But often,
+ *  purchase interface functions should be used first to finnish
+ *  purcahse operations before downloading the node content.
+ *  After downloading, the installation interface functions may be
+ *  called to install the files that have been downloaded.
+ *
+ *  @see MNcdNodePurchase
+ *  @see MNcdNodeInstall
+ *
+ *  
+ */
+class MNcdNodeDownload : public virtual MCatalogsBase
+    {
+    
+public:
+
+    /**
+     * Unique identifier for the interface, required for all MCatalogsBase interfaces.
+     *
+     * 
+     */
+    enum { KInterfaceUid = ENcdNodeDownloadUid };
+
+
+    /**
+     * Determines if the node content has already been downloaded.
+     *
+     * 
+     * @return ETrue if the node content has been downloade, EFalse otherwise.
+     * @exception Leave System wide error code.
+     */
+    virtual TBool IsDownloadedL() const = 0;
+
+
+    /**
+     * Starts the download operation.
+     *
+     * @note The reference count of the operation object is increased by one. 
+     * So, Release function of the operation should be called when operation 
+     * is not needed anymore.
+     *
+     * 
+     * @param aObserver Observer for the operation.
+     * @return Pointer to the download operation. Can be used to check the
+     *         progress of the downloading. Counted, Release() must be called
+     *         after use.
+     * @exception Leave System wide error code.
+     *  KNcdErrorParallelOperationNotAllowed if a parallel client is running
+     *  an operation for the same metadata. See MNcdOperation for full explanation.
+     */
+    virtual MNcdDownloadOperation* DownloadContentL( 
+        MNcdDownloadOperationObserver& aObserver ) = 0;
+
+
+protected:
+
+    /**
+     * Destructor.
+     *
+     * @see MCatalogsBase::~MCatalogsBase()
+     */
+    virtual ~MNcdNodeDownload() {}
+    
+    };
+
+
+#endif // M_NCD_NODE_DOWNLOAD_H