/*

* Copyright (c) 2007 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:  Listen to CenRep and PubSub Keys

*

*/

#include <e32base.h>

#include <btserversdkcrkeys.h>

#include <btengprivatecrkeys.h>

#include <bt_subscribe.h>

#include "BTUIKeyWatcher.h"

#include "BTUIMainView.h"

#include "debug.h"

// ======== MEMBER FUNCTIONS ========

// ---------------------------------------------------------------------------

// NewL

// ---------------------------------------------------------------------------

//

CBTUIKeyWatcher* CBTUIKeyWatcher::NewL( TAny* aCaller, TInt aServiceID  )

    {

    CBTUIKeyWatcher* self = new( ELeave ) CBTUIKeyWatcher( aCaller );

    CleanupStack::PushL( self );

    self->ConstructL( aServiceID );

    CleanupStack::Pop( self );

    return self;

    }

// ---------------------------------------------------------------------------

// C++ default constructor

// ---------------------------------------------------------------------------

//

CBTUIKeyWatcher::CBTUIKeyWatcher( TAny* aCaller )

:   iCaller( aCaller )

    {

    }

// ---------------------------------------------------------------------------

// Symbian 2nd-phase constructor

// ---------------------------------------------------------------------------

//

void CBTUIKeyWatcher::ConstructL( TInt aServiceID )

    {

    TRACE_FUNC_ENTRY

    if( aServiceID & KBTUIPHYCountWatcher )

    	{

	    TInt err = iPHYCountKey.Attach( KPropertyUidBluetoothCategory, KPropertyKeyBluetoothPHYCount );

	    if( !err )

	        {

	        iPHYCountWatcher = CBTUIActive::NewL( this, KBTUIPHYCountWatcher, CActive::EPriorityStandard );

	        if( iPHYCountWatcher != NULL )

	        	{

	        	iPHYCountKey.Subscribe( iPHYCountWatcher->RequestStatus() );

	        	iPHYCountWatcher->GoActive();

	        	}

	        else

	        	{

	        	TRACE_INFO(_L("new iPHYCountWatcher failed"));

	        	}

	        }

	    else

	    	{

	    	TRACE_INFO((_L("Attach failed %d"), err))

	    	}	

    	}

    TRACE_FUNC_EXIT

    }

// ---------------------------------------------------------------------------

// Destructor

// ---------------------------------------------------------------------------

//

CBTUIKeyWatcher::~CBTUIKeyWatcher()

    {

    TRACE_FUNC_ENTRY

    if( iPHYCountKey.Handle() )

        {

        iPHYCountKey.Cancel();

        }

    if( iPHYCountWatcher )

    	{

    	delete iPHYCountWatcher;

    	iPHYCountWatcher = NULL;

    	}

    iPHYCountKey.Close();

    TRACE_FUNC_EXIT

    }

// ---------------------------------------------------------------------------

// From class MBTEngActiveObserver.

// Processes a changed key value.

// ---------------------------------------------------------------------------

//

void CBTUIKeyWatcher::RequestCompletedL( CBTUIActive* aActive, TInt aId, TInt /*aStatus*/ )

    {

    switch( aId )

        {

        case KBTUIPHYCountWatcher:

            iPHYCountKey.Subscribe( aActive->RequestStatus() );

            aActive->GoActive();

            static_cast<CBTUIMainView*>(iCaller)->UpdateParentView();

            break;

        default:

        	TRACE_INFO((_L("wrong key notification! id=%d"), aId))

            break;

        }

    TRACE_FUNC_EXIT

    }

// ---------------------------------------------------------------------------

// From class MBTEngActiveObserver.

// Handles a leave in RunL/RequestCompletedL by checking that all 

// the subscriptions are active.

// ---------------------------------------------------------------------------

//

void CBTUIKeyWatcher::HandleError( CBTUIActive* aActive, TInt aId, TInt aError )

    {

    TRACE_INFO((_L("status = %d"), aError))

    (void) aError;

    if( !aActive->IsActive() )

        {

        switch( aId )

            {

            case KBTUIPHYCountWatcher:

                iPHYCountKey.Subscribe( aActive->RequestStatus() );

                aActive->GoActive();

                break;

            default:         

            	TRACE_INFO((_L("wrong key notification! id=%d"), aId))

                break;

            }

        }

    }