--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ncdengine/inc/ncdnodeseenfolder.h Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,87 @@
+/*
+* Copyright (c) 2007-2008 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 MNcdNodeSeenFolder
+*
+*/
+
+
+#ifndef M_NCDNODESEENFOLDER_H
+#define M_NCDNODESEENFOLDER_H
+
+#include "catalogsbase.h"
+#include "ncdinterfaceids.h"
+#include "catalogsarray.h"
+
+class MNcdNode;
+
+/**
+ * This interface provides functions to obtain unseen child nodes of a folder and
+ * to set them seen. This interface can be queried from a folder node.
+ *
+ *
+ */
+class MNcdNodeSeenFolder : public virtual MCatalogsBase
+ {
+
+public:
+
+ /**
+ * Unique identifier for the interface, required for all MCatalogsBase interfaces.
+ *
+ *
+ */
+ enum { KInterfaceUid = ENcdNodeSeenFolderUid };
+
+ /**
+ * Sets the child nodes of the folder as seen. Only the immediate children are set.
+ *
+ * @leave System wide error code.
+ */
+ virtual void SetContentsSeenL() = 0;
+
+ /**
+ * Returns the number of new child nodes. All the nodes that are unseen are
+ * regarded as new.
+ *
+ * @param aLevels The number of node hierarchy levels the new nodes are searched from.
+ * 1 means only the children of this node are searched.
+ * @return The number of new items.
+ * @leave System wide error code.
+ */
+ virtual TInt NewCountL( TInt aLevels ) const = 0;
+
+ /**
+ * Returns an array of the new child nodes. All the nodes that are unseen are
+ * regarded as new.
+ *
+ * The nodes in the array are counted, they must be released after use.
+ *
+ * @param aLevels The number of node hierarchy levels the new nodes are searched from.
+ * 1 means only the children of this node are searched.
+ */
+ virtual RCatalogsArray<MNcdNode> NewNodesL( TInt aLevels ) const = 0;
+
+protected:
+
+ /**
+ * Destructor.
+ *
+ * @see MCatalogsBase::~MCatalogsBase
+ */
+ virtual ~MNcdNodeSeenFolder() {}
+
+ };
+
+
+#endif // M_NCDNODESEENFOLDER_H