--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/menufw/hierarchynavigator/hnpresentationmodel/inc/hnsuitesstack.h	Wed Sep 01 12:32:46 2010 +0100
@@ -0,0 +1,149 @@
+/*
+* 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:   suite stack
+*
+*/
+
+
+#ifndef C_HNSUITESSTACK_H
+#define C_HNSUITESSTACK_H
+
+#include <e32base.h>
+
+class CHnSuiteModel;
+class MHnControllerInterface;
+
+/**
+ *  Class implements Suites stack.
+ *  Suite stack is used to keep visual models of suites
+ *  in the order they have been opened.
+ *
+ *  @lib hnpresentationmodel
+ *  @since S60 5.0
+ *  @ingroup group_hnpresentationmodel
+ */
+NONSHARABLE_CLASS( CHnSuitesStack ): public CBase
+    {
+
+public:
+
+    /**
+     * Two-phased constructor.
+     * 
+     * @since S60 5.0
+     * @param aControllerInterface A HN controller inteface.
+     * @return Fully constructed object.
+     */
+    IMPORT_C static CHnSuitesStack* NewL( MHnControllerInterface& aControllerInterface );
+    
+    /**
+     * Virtual Destructor.
+     * 
+     * @since S60 5.0
+     */
+    ~CHnSuitesStack();
+    
+    /**
+     * Pushes a Suite Model onto the stack.
+     * 
+     * @since S60 v5.0
+     * @param aSuiteModel Model to be pushed to stack.
+     * @return Quantity of models in the stack after insert.
+     */
+    IMPORT_C TInt PushL( CHnSuiteModel* aSuiteModel );
+
+    /**
+     * Pops the last Suite Model from the top of the stack.
+     * Ownership is transfered to the code that invokes it.
+     * 
+     * @since S60 v5.0
+     * @return Suite Model object, ownership is transfered to 
+     *         invoking code.
+     */
+    IMPORT_C CHnSuiteModel* PopL();
+    
+    /**
+     * Gets the last Suite Model, from the top of the stack.
+     * 
+     * @since S60 v5.0
+     * @return Suite Model at the top of the stack.
+     */
+    IMPORT_C CHnSuiteModel* GetLast();
+    
+    /**
+    * Gets the stack, from a certain position in the stack.
+    * Index 0, refers to the lowest Suite Model.
+    * 
+    * @since S60 v5.0
+    * @param aPositon Position to fetch model from.
+    * @return Suite Model form a certain posiotion.
+    */
+    IMPORT_C CHnSuiteModel* Get( TInt aPositon );
+    
+    /**
+     * Gets the Suite Model from the bottom of the stack.
+     * 
+     * @since S60 v5.0
+     * @return Suite Model from the bottom of the stack.
+     */
+    IMPORT_C CHnSuiteModel* GetRootSuite();
+     
+    /**
+     * Checks if the stack is empty.
+     * 
+     * @since S60 v5.0
+     * @return Bollean value.
+     */
+    IMPORT_C TBool IsEmpty();
+    
+    /**
+     * Gets the size of the stack.
+     * 
+     * @since S60 v5.0
+     * @return Number of Suite Models in the stack.
+     */
+    IMPORT_C TInt Count();
+
+private:
+    
+    /**
+     * Constructor.
+     * 
+     * @since S60 v5.0
+     * @param aControllerInterface Reference to App Ui - event observer
+     */
+    CHnSuitesStack( MHnControllerInterface& aControllerInterface );
+
+    /**
+     * Second pahse constructor.
+     * 
+     * @since S60 v5.0
+     */
+    void ConstructL( );
+
+private:
+
+    /**
+     * Suites stack
+     */
+    RPointerArray< CHnSuiteModel > iStack;
+    
+    /**
+     * Reference to App Ui - event observer
+     */
+    MHnControllerInterface& iControllerInterface; 
+
+    };
+
+#endif // C_HNSUITESSSTACK_H