/*

* Copyright (c) 2010 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:  Class is used for listening changes in various Symbian Central

*                     repository keys.

*

*/

#ifndef CENREP_LISTENER_H

#define CENREP_LISTENER_H

#include "javaosheaders.h"

#include "settingschangeeventsprovidermessages.h"

#include <e32std.h>

#include <cenrepnotifyhandler.h>

namespace java

{

namespace captain

{

/**

 * Java Runtime environment Central Repository UID

 */

const TUid    KCRUidJavaRuntime             = { 0x10282DFD };

/**

 * Indicates classpath for MIDP runtimes. This key value is generated

 * from the values defined by extension libraries.

 */

const TUint32 KJavaRuntimeMIDPClasspath     = 0x00000001;

class CoreInterface;

OS_NONSHARABLE_CLASS(CenRepListener) :

public CBase, public MCenRepNotifyHandlerCallback

{

public:

    enum TListenerType {GENERAL_LISTENER = -1};

    static CenRepListener* NewLC(CoreInterface* aCore, TUid aRepoId, TUint32 aKeyId,

                                 CCenRepNotifyHandler::TCenRepKeyType aKeyType);

    static CenRepListener* NewL(CoreInterface* aCore, TUid aRepoId, TUint32 aKeyId,

                                  CCenRepNotifyHandler::TCenRepKeyType aKeyType);

    static CenRepListener* NewLC(CoreInterface* aCore, TUid aRepoId);

    static CenRepListener* NewL(CoreInterface* aCore, TUid aRepoId);

    virtual ~CenRepListener();

    // MCenRepNotifyHandlerCallback

    // These handler methods must know what to do in each case, i.e

    // how to handle the change in each particular key.

    virtual void HandleNotifyString( TUint32 aKeyId, const TDesC16& aNewValue );

    virtual void HandleNotifyInt(TUint32 aKeyId, TInt aNewValue);

    virtual void HandleNotifyReal( TUint32 aId, TReal aNewValue );

    virtual void HandleNotifyBinary( TUint32 aId, const TDesC8& aNewValue );

    virtual void HandleNotifyGeneric(TUint32 aKeyId);

    virtual void HandleNotifyError(TUint32 aKeyId, TInt error,

                                   CCenRepNotifyHandler* aHandler);

protected:

    CenRepListener();

    void dispatchEvent(const std::string& aEvent,

                       const SettingsChangeEventType_t& aType) const;

private:

    void ConstructL(CoreInterface* aCore, TUid aRepoId);

    void ConstructL(CoreInterface* aCore, TUid aRepoId, TUint32 aKeyId,

                    CCenRepNotifyHandler::TCenRepKeyType aKeyType);

    void Close();

    TInt mKeyType;

    CoreInterface* mCore;

    TUid mRepoId;

    CCenRepNotifyHandler* mNotifyHandler;

    CRepository* mCenRepSession;

};

} // namespace captain

} // namespace java

#endif // CENREP_LISTENER_H