menucontentsrv/srvinc/menusrvmmchistory.h
changeset 0 79c6a41cd166
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/menucontentsrv/srvinc/menusrvmmchistory.h	Thu Dec 17 08:54:17 2009 +0200
@@ -0,0 +1,86 @@
+/*
+* Copyright (c) 2009 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:
+*
+*/
+
+#ifndef __MENUSRVMMCHISTORY_H__
+#define __MENUSRVMMCHISTORY_H__
+
+#include <e32base.h>
+
+// FORWARD DECLARATION
+
+class CMenuEng;
+class RFs;
+
+/**
+* MMC History.
+* Stores a fixed number of MMC ids. When new ID-s are inserted,
+* old ones are purged. Supports file persistence.
+*/
+NONSHARABLE_CLASS( CMenuSrvMmcHistory ): public CBase
+    {
+
+public:     // construction
+
+    /**
+    * Destructor.
+    */
+    virtual ~CMenuSrvMmcHistory() { iMmcList.Close(); }
+
+    /**
+    * Constructor.
+    */
+    CMenuSrvMmcHistory() {}
+
+public:     // new methods
+
+    /**
+    * Load from file. Safe to call if file does not exist.
+    * @param aFs File Server Session.
+    * @param aFname File name.
+    */
+    void LoadL( RFs& aFs, const TDesC& aFname );
+
+    /**
+    * Save to file. Existing file overwritten.
+    * @param aFs File Server Session.
+    * @param aFname File name.
+    */
+    void SaveL( RFs& aFs, const TDesC& aFname );
+
+    /**
+    * Insert new ID to first position.
+    * If ID is already in the history, now it is moved to first
+    * position (->latest).
+    * If history is full, oldest ID may be dropped from history.
+    * @param aMmc MMC ID.
+    */
+    void InsertL( TUint aMmc );
+
+    /**
+    * Find ID in history.
+    * @param aMmc MMC ID.
+    * @return History index, or KErrNotFound.
+    */
+    TInt Find( TUint aMmc ); // Find mmc in history.
+
+private:    // data
+
+    RArray<TUint> iMmcList; ///< ID history list. Own.
+
+    };
+
+#endif // __MENUSRVMMCHISTORY_H__