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/*
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* Copyright (c) 2008 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:
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*
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*/
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#ifndef C_CAMMCWATCHER_H
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#define C_CAMMCWATCHER_H
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#include <e32base.h>
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#include <f32file.h>
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/**
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* Interface for observing MMC events.
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*
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* @since S60 S60 v3.1
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*/
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class MMmcWatcherCallback
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{
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public:
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/**
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* MmcChangeL is called when the MMC is removed or inserted.
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*/
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virtual void MmcChangeL() = 0;
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};
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/**
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* This active object waits for an indication that the media has changed.
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*
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* @since S60 S60 v3.1
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*/
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NONSHARABLE_CLASS( CCaMmcWatcher ) : public CActive
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{
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public:
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/**
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* Two-phased constructor.
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* @param aObserver Pointer to notifier interface.
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* @param aFs file server session.
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*/
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IMPORT_C static CCaMmcWatcher* NewL( RFs& aFs,
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MMmcWatcherCallback* aObserver );
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/**
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* Two-phased constructor.
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* @param aObserver Pointer to notifier interface.
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* @param aFs file server session.
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*/
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IMPORT_C static CCaMmcWatcher* NewLC( RFs& aFs,
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MMmcWatcherCallback* aObserver );
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/**
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* Destructor
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*/
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~CCaMmcWatcher();
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private:
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/**
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* C++ default constructor
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* @param aObserver Pointer to notifier interface.
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* @param aFs file server session.
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*/
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CCaMmcWatcher( RFs& aFs, MMmcWatcherCallback* aObserver );
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/**
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* By default Symbian OS constructor is private.
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*/
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void ConstructL();
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/**
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* Set notification request
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*/
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void WaitForChangeL();
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/**
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* From CActive.
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*/
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void DoCancel();
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/**
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* From CActive.
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*/
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void RunL();
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/**
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* From CActive.
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*/
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TInt RunError( TInt aError );
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private:
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/**
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* File server session.
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* Not Own
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*/
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RFs iFs;
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/**
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* MMC events observer
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* Not own.
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*/
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MMmcWatcherCallback* iObserver;
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};
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#endif // C_CAMMCWATCHER_H
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