--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/commonui/inc/glxbackservicewrapper.h	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,130 @@
+/*
+* Copyright (c) 2008-2009 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:    wrapper for Back Stepping Service
+*
+*/
+
+
+
+
+#ifndef C_GLX_BACKSERVICE_WRAPPER
+#define C_GLX_BACKSERVICE_WRAPPER
+
+#include <e32base.h>
+
+class MLiwInterface;
+class CLiwGenericParamList;
+class CLiwServiceHandler;
+
+/**
+ *   BS Service wrapper
+ *
+ *  @since S60 v3.2
+ */
+class CGlxBackServiceWrapper : public CBase
+    {
+
+public:
+
+    /**
+     * Two-phased constructors
+     * @param aUid client application UID
+     */
+    static CGlxBackServiceWrapper* NewL( const TUid aUid );
+    static CGlxBackServiceWrapper* NewLC( const TUid aUid );
+    
+    /**
+    * Destructor.
+    */
+    virtual ~CGlxBackServiceWrapper();
+
+    /**
+     * Forwards activation event
+     *
+     * @since S60 v3.2
+     * @param aState state of application like view ids
+     * @param aEnter indicate if it is entry/exit activation
+     * @return result code retutned by BS Service interface
+     * @leave leaves from HandleResultL are propagated
+     */
+    IMPORT_C TInt ForwardActivationEventL( const TDesC8& aState, const TBool aEnter );
+    
+    /**
+     * Handles back command
+     *
+     * @since S60 v3.2
+     * @param aState state of application like view ids
+     * @return result code retutned by BS Service interface
+     * @leave leaves from HandleResultL are propagated
+     */
+    IMPORT_C TInt HandleBackCommandL( const TDesC8& aState, const TBool aCheckOnly = EFalse );
+
+private:
+
+    CGlxBackServiceWrapper();
+
+    /**
+     * 2nd phase constructor
+     * @param aUid client application UID
+     */
+    void ConstructL( const TUid aUid );
+    
+    /**
+     * Initializes BS Service
+     * @param aUid client application UID
+     * @leave KErrNotSupported or KErrArgument 
+     *        (if arguments passed to BS Service are incorrect 
+     *        or could not initialize BS)
+     *        KErrNotFound (if there was no return value)
+     */
+    void InitializeL( const TUid aUid );
+    
+    /**
+     * Handles the result of a LIW command
+     * @return result code retutned by BS Service interface
+     * @leave KErrNotSupported or KErrArgument 
+     *        (if arguments passed to BS Service are incorrect)
+     *        KErrNotFound (if there was no return value)
+     */
+    TInt HandleResultL();
+
+private: // data
+    
+    /**
+     * Liw Service Handler
+     * Own.
+     */
+    CLiwServiceHandler* iServiceHandler;
+    
+    /**
+     * BS Service interface returned by LIW
+     * Own.
+     */
+    MLiwInterface* iBSInterface;
+    
+    /**
+     * In param list
+     * Not own.
+     */
+    CLiwGenericParamList* iInParamList;
+    
+    /**
+     * Out param list
+     * Not own.
+     */
+    CLiwGenericParamList* iOutParamList;
+
+    };
+
+#endif // C_GLX_BACKSERVICE_WRAPPER