--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/skins/AknSkins/srvinc/aknssrvwallpapertimer.h	Thu Dec 17 09:14:12 2009 +0200
@@ -0,0 +1,146 @@
+/*
+* Copyright (c) 2007 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:  Slide set wallpaper timer.
+*
+*/
+
+
+#ifndef C_AKNSWALLPAPERTIMER_H
+#define C_AKNSWALLPAPERTIMER_H
+
+#include <e32base.h>
+
+/**
+ *  Observer interface for wallpaper slide set timer.
+ *
+ *  This interface is called when timer fires according
+ *  to interval period defined when creating an instance.
+ *
+ *  @lib aknssrv.lib
+ *  @since S60 v3.2
+ */
+class MAknsSrvWallpaperListener
+    {
+    public:
+        virtual void WallpaperTimerTimeoutL( TBool aForceChange = EFalse ) = 0;
+    };
+
+/**
+ *  Slideset wallpaper timer.
+ *
+ *  This class defines a timer for changing the image
+ *  in a slide set. When timer fires according to interval
+ *  given when creating the class, observer interface
+ *  MAknsSrvWallpaperListener::WallpaperTimerTimeoutL is
+ *  called.
+ *
+ *  @lib aknssrv.lib
+ *  @since S60 v3.2
+ */
+NONSHARABLE_CLASS(CAknsSrvWallpaperTimer) : public CActive
+    {
+    public:
+
+        /**
+        * Creates a new instance of wallpaper slide set timer.
+        * @param aListener observer for this timer's events.
+        *
+        * @return new instance of wallpaper slide set timer.
+        */
+        static CAknsSrvWallpaperTimer* NewL(
+            MAknsSrvWallpaperListener* aListener );
+
+        /**
+        * Start the timer.
+        * @param aInterval firing interval in seconds.
+        *        The timer is fired after each interval period,
+        *        until stopped.
+        */
+        void Start( TInt aInterval );
+
+        /**
+        * Stop the timer.
+        */
+        void Stop();
+
+        /**
+        * Returns the interval period of the timer.
+        * @return interval period of the timer.
+        */
+        TInt Interval();
+
+        /**
+        * Destructor. Cancels and closes the timer.
+        */
+        ~CAknsSrvWallpaperTimer();
+
+    protected:
+
+        /**
+        * Handles an active object's request completion event.
+        * @from CActive.
+        */
+        void RunL();
+
+        /**
+        * Implements cancellation of an outstanding request.
+        * @from CActive.
+        */
+        void DoCancel();
+
+    private:
+
+        // Second phase constructor.
+        void ConstructL();
+
+        // C++ constructor.
+        CAknsSrvWallpaperTimer( MAknsSrvWallpaperListener* aListener );
+
+        /**
+        * Issues a new request. If active object is already running,
+        * nothing happens.
+        * @param aTempInterval a new interval to use.
+        */
+        void IssueRequest( TInt aTempInterval = 0 );
+
+    private:
+        /**
+        * Pointer to timer firing event listener.
+        * Not own.
+        */
+        MAknsSrvWallpaperListener* iListener;
+
+        /**
+        * Interval when timer should fire.
+        */
+        TInt iInterval;
+
+        /**
+        * Has the request been cancelled.
+        */
+        TBool iCanceled;
+
+        /**
+        * Timer object.
+        */
+        RTimer iTimer;
+
+        /**
+        * Previous time when timer was fired.
+        */
+        TTime iPreviousTime;
+    };
+
+
+#endif // C_AKNSWALLPAPERTIMER_H