emailuis/uicomponents/inc/fsfadeeffectobserver.h
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     1 /*
       
     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  Observer interface for a fade effect.
       
    15  *
       
    16 */
       
    17 
       
    18 
       
    19 #ifndef C_FSFADEEFFECTOBSERVER_H
       
    20 #define C_FSFADEEFFECTOBSERVER_H
       
    21 
       
    22 /**
       
    23  * Observer interface for a fade effect.
       
    24  */
       
    25 NONSHARABLE_CLASS(MFsFadeEffectObserver)
       
    26     {
       
    27 public:
       
    28 
       
    29     /**
       
    30      * 
       
    31      */
       
    32     enum TFadeEffectState 
       
    33         {
       
    34         EIdle=0,
       
    35         EFadingIn=1,
       
    36         EFadingOut,        
       
    37         EFadeInFinished,
       
    38         EFadeOutFinished
       
    39         };
       
    40     
       
    41 public:
       
    42     /**
       
    43      * Function which will receive notifications about 
       
    44      * fade effect state changes.
       
    45      * @param aState Current state of fade affect
       
    46      */
       
    47     virtual void FadeEffectEvent(MFsFadeEffectObserver::TFadeEffectState aState)=0;
       
    48     };
       
    49 
       
    50 #endif // C_FSFADEEFFECTOBSERVER_H