--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/uicomponents/inc/fsfadeeffect.h	Thu Dec 17 08:39:21 2009 +0200
@@ -0,0 +1,165 @@
+/*
+* 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:  Fade effect for a list component.
+ *
+*/
+
+
+#ifndef C_FSFADEEFFECT_H
+#define C_FSFADEEFFECT_H
+//<cmail> SF
+#include <alf/alfeventhandler.h>
+//</cmail>
+//////TOOLKIT CLASSES
+class CAlfVisual;
+class CAlfControl;
+
+class MFsFadeEffectObserver;
+
+
+/**
+ *  Class used for fade in/out effects.
+ *
+ *  @lib 
+ */
+NONSHARABLE_CLASS(CFsFadeEffect): public CBase, public MAlfEventHandler
+    {
+        
+public:
+    /**
+     * Two-phased constructor
+     * 
+     * @param aRoot Root visual/layout which of the opacity is controlled
+     * @param aTime Speed of fade in/out effect. Time in miliseconds.
+     * 
+     * @return Pointer to the new fade effect object
+     */
+    static CFsFadeEffect* NewL(CAlfControl* aControl, CAlfVisual* aRoot, TInt aTime);   
+    
+    /**
+     * Two-phased constructor
+     * 
+     * @param aObserver Observer which will receive events about state chages
+     * @param aRoot Root visual/layout which of the opacity is controlled
+     * @param aTime Speed of fade in/out effect. Time in miliseconds.
+     * 
+     * @return Pointer to the new fade effect object
+     */
+    static CFsFadeEffect* NewL(CAlfControl* aControl, MFsFadeEffectObserver* aObserver, 
+        CAlfVisual* aRoot, 
+        TInt aTime);
+    
+    /**
+     * Launches fade in effect
+     */
+    void FadeIn();
+    
+    /**
+     * Launches fade out effect
+     */
+    void FadeOut();
+    
+    /**
+     * Sets duration (in miliseconds) of the fade effects.
+     * @param aTime Fade effect's duration in milisecond. 
+     */
+    void SetTime(const TInt aTime);
+    
+    /**
+     * Returns speed of the fade effect
+     * 
+     * @return Duratin of the fade effect in miliseconds.
+     */
+    TInt Time() const;    
+    
+public: //From MAlfEventHandler
+
+    /**
+     * From MAlfEventHandler
+     * Called when an input event is being offered to this object.
+     * 
+     * The implementation must ensure that the function returns EFalse if 
+     * it does not do anything in response to the event, otherwise, other objects
+     * may be prevented from receiving the event. If it is able to process the 
+     * event it should return ETrue.
+     *
+     * @param aEvent  Event to be handled.
+     *
+     * @return  <code>ETrue</code>, if the event was handled.
+     *          Otherwise <code>EFalse</code>.
+     */
+    virtual TBool OfferEventL(const TAlfEvent& aEvent);
+    
+private:
+    /**
+     * Constructor
+     * 
+     * @param aRoot Root visual/layout which of the opacity is controlled
+     * @param aTime Speed of fade in/out effect. Time in miliseconds.
+     * 
+     */
+    CFsFadeEffect(CAlfControl* aControl,CAlfVisual* aRoot, TInt aTime);
+
+
+    /**
+     * Constructor
+     * 
+     * @param aObserver Observer which will receive events about state chages
+     * @param aRoot Root visual/layout which of the opacity is controlled
+     * @param aTime Speed of fade in/out effect. Time in miliseconds.
+     * 
+     * @return Pointer to the new fade effect object
+     */
+    CFsFadeEffect(CAlfControl* aControl,MFsFadeEffectObserver* aObserver, 
+        CAlfVisual* aRoot, 
+        TInt aTime);
+
+private:
+
+    /**
+     * Custom events that informs about ending a fade effect.
+     */
+    enum TCustomEvent
+        {
+        ECustomEventFadeInFinished = 200,
+        ECustomEventFadeOutFinished
+        };
+    
+private:
+
+    /**
+     * 
+     */
+    CAlfControl* iControl;
+    
+    /**
+     * Root visual/layout which of the opacity is controlled
+     * Not own.
+     */
+    CAlfVisual* iRoot;
+    
+    /**
+     * Observer of fade eddects
+     * Not own.
+     */
+    MFsFadeEffectObserver* iObserver;
+    
+    /**
+     * Speed of fade in/out effects
+     */
+    TInt iTime;
+
+    };
+    
+#endif //C_FSFADEEFFECT_H