menufw/menufwui/mmwidgets/inc/mmvisibilityobserver.h
author Simon Howkins <simonh@symbian.org>
Tue, 16 Nov 2010 11:12:20 +0000
branchRCL_3
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permissions -rw-r--r--
Fixed path to files to be exported
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/*
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* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  receives key pressed notifications
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*
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*/
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#ifndef M_MMVISIBILITYOBSERVER_H
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#define M_MMVISIBILITYOBSERVER_H
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#include <coedef.h>
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/**
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 *  Interface for handling application changing background/foreground states.
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 *
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 *  @code
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 *  @endcode
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 *  @lib 
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 *  @since S60 v3.0
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 *  @ingroup group_mmwidgets
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 */
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class MMmVisibilityObserver
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    {
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public:
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    /**
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     * Called when application goes into foreground (e.g options menu
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     * goes off or application is opened ).
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     * 
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     * @since S60 v5.0
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     */
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    virtual void HandleForegroundGainedL() = 0;
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    /**
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     * Called when application goes into background (e.g the options list
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     * is open and application view is dimmed).
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     *
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     * @since S60 v5.0
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     */
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    virtual void HandleBackgroundGainedL() = 0;
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    };
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#endif // M_MMVISIBILITYOBSERVER_H