/*

* Copyright (c) 2007-2009 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:  CSysApCenRepCallForwardingObserver class definition. 

*

*/

#ifndef SYSAPCENREPCALLFORWARDINGOBSERVER_H

#define SYSAPCENREPCALLFORWARDINGOBSERVER_H

#include <e32base.h>

#include <ctsydomaincrkeys.h>

#include <centralrepository.h>

#include <cenrepnotifyhandler.h>

#include <etelmm.h>

#include "SysApSatObserver.h"

class CSysApAppUi;

/**

*  CSysApCenRepCallForwardingObserver class observes for changes in

*  call forwarding status CenRep key. In addition SIM file change

*  events are monitored via SAT interface.

*

*  @lib None.

*  @since S60 3.2

*/

class CSysApCenRepCallForwardingObserver : public CBase, 

                                           public MCenRepNotifyHandlerCallback,

                                           public MSysApSatObserver

    {

public:

    /**

    * Symbian two-phased constructor.

    *

    * @param aSysApAppUi reference to SysAp's application class

    */

    static CSysApCenRepCallForwardingObserver* NewL( CSysApAppUi& aSysApAppUi );

    /**

    * Destructor.

    */

    virtual ~CSysApCenRepCallForwardingObserver();

    /**

    * Updates the call forwarding indicators.

    *

    * @since S60 3.2

    */ 

    void UpdateCallForwardingIndicatorsL();

public:

    // From MCenRepNotifyHandlerCallback

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

    void HandleNotifyError( TUint32 aId, TInt error, CCenRepNotifyHandler* aHandler );

    // From MSysApSatObserver

    void SimFileChangedL();

private:

    /**

    * Symbian 2nd-phase constructor.

    */

    void ConstructL();

    /**

    * C++ default constructor.

    * Prohibited.

    */

    CSysApCenRepCallForwardingObserver();

    /**

    * Constructor.

    *

    * @param aSysApAppUi reference to SysAp's application class

    */         

    CSysApCenRepCallForwardingObserver( CSysApAppUi& aSysApAppUi );

    /** 

    * Copy constructor.

    * Prohibited.

    */

    CSysApCenRepCallForwardingObserver( const CSysApCenRepCallForwardingObserver& );

    /**

    * Assigment operator

    * Prohibited.

    */

    CSysApCenRepCallForwardingObserver& operator= ( const CSysApCenRepCallForwardingObserver& );

    /**

    * Maps call forwarding values stored in SIM to uncondtional CF values.

    *

    * @since S60 3.2

    */

    void MapForwarding();

    /**

    * Checks ALS support from product profile and SIM

    * 

    * @since S60 3.2

    * @return TBool ETrue if ALS is supported

    */

    TBool AlsSupport() const;

    /**

    * Returns whether SIM supports storing call diverts and

    * whether it should be used for determining indicator

    * status.

    */

    TBool UseSimCallDivertInfo() const;

    /**

    * Checks whether mapping of call forwarding values needed to uncondtional CF values.

    *

    * @since S60 3.2

    */

    void DoConditionalMapForwarding();

    /**

    * Returns call forwarding status stored by common tsy.

    *

    * @since S60 3.2

    */

    TInt GetSimCallForwardingStatus( RMobilePhone::TCFUIndicatorStatus& callForwardingStatus );

private:

    /**

    * SysAp's application class.

    */

    CSysApAppUi& iSysApAppUi;

    /**

    * CenRep session.

    * Own.

    */ 

    CRepository* iSession;

    /**

    * CenRep notification handler.

    * Own.

    */

    CCenRepNotifyHandler* iCallForwardingHandler;

    /**

    * Call forwarding status

    */

    TUnconditionalCFStatus iCallForwardingStatus;

    /**

    * Set to ETrue when indicators can be updated to UI.

    */

    TBool iUiReady;

    /**

    * Current CF status stored by SIM.

    */

    RMobilePhone::TCFUIndicatorStatus iSimCFCurrentStatus;

    /**

    * SIM CF file refresh handler.

    */

    CSysApSatObserver* iSatCFHandler;

    };

#endif      // SYSAPCENREPCALLFORWARDINGOBSERVER_H

// End of File