// Copyright (c) 2006-2009 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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// INCLUDE FILES+
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#include "HWRMtrace.h"+
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#include "HWRMPSChangeObserver.h"+
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+
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// ============================ MEMBER FUNCTIONS ===============================+
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+
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// -----------------------------------------------------------------------------+
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// CHWRMPSChangeObserver::CHWRMPSChangeObserver+
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// C++ constructor can NOT contain any code, that+
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// might leave.+
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// -----------------------------------------------------------------------------+
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//+
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CHWRMPSChangeObserver::CHWRMPSChangeObserver(MHWRMPSChangeObserver& aCallback,+
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                                             const TUid& aUid,+
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                                             TUint32 aKey)+
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    : CActive(EPriorityStandard), +
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      iCallback(aCallback),+
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      iUid(aUid),+
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      iKey(aKey)+
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    {+
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    COMPONENT_TRACE2(_L( "HWRM Server - CHWRMPSChangeObserver::CHWRMPSChangeObserver(0x%x)" ), &aCallback);+
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+
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    CActiveScheduler::Add(this);+
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+
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    COMPONENT_TRACE1(_L( "HWRM Server - CHWRMPSChangeObserver::CHWRMPSChangeObserver - return" ) );+
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    }+
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+
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// -----------------------------------------------------------------------------+
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// CHWRMPSChangeObserver::NewL+
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// Two-phased constructor+
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// -----------------------------------------------------------------------------+
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//+
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CHWRMPSChangeObserver* CHWRMPSChangeObserver::NewL(MHWRMPSChangeObserver& aCallback,+
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                                                   const TUid& aUid,+
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                                                   TUint32 aKey)+
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    {+
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+
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    CHWRMPSChangeObserver* newInstance = NewLC(aCallback, aUid, aKey);+
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	CleanupStack::Pop();+
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+
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	return newInstance;+
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    }+
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+
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+
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// -----------------------------------------------------------------------------+
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// CHWRMPSChangeObserver::NewLC+
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// Two-phased constructor. Leaves instance to cleanup stack+
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// -----------------------------------------------------------------------------+
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//+
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CHWRMPSChangeObserver* CHWRMPSChangeObserver::NewLC(MHWRMPSChangeObserver& aCallback,+
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                                                    const TUid& aUid,+
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                                                    TUint32 aKey)+
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    {+
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    COMPONENT_TRACE2(_L( "HWRM Server - CHWRMPSChangeObserver::NewLC(0x%x)" ), &aCallback);+
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+
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	CHWRMPSChangeObserver* newInstance = new (ELeave) CHWRMPSChangeObserver(aCallback, aUid, aKey);+
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	CleanupStack::PushL( newInstance );+
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	+
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	newInstance->ConstructL();+
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+
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    COMPONENT_TRACE2(_L( "HWRM Server - CHWRMPSChangeObserver::NewLC - return 0x%x" ), newInstance );+
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+
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	return newInstance;+
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    }+
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+
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+
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// -----------------------------------------------------------------------------+
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// Destructor+
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// -----------------------------------------------------------------------------+
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//+
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CHWRMPSChangeObserver::~CHWRMPSChangeObserver()+
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    {+
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    COMPONENT_TRACE1(_L( "HWRM Server - CHWRMPSChangeObserver::~CHWRMPSChangeObserver()" ));+
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+
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    // Cancel property separately, as the following Cancel() call doesn't seem to +
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    // cause DoCancel to fire.+
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    iProperty.Cancel();+
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+
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    Cancel();+
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    +
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    iProperty.Close();+
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+
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    COMPONENT_TRACE1(_L( "HWRM Server - CHWRMPSChangeObserver::~CHWRMPSChangeObserver - return" ) );+
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    }+
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+
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// -----------------------------------------------------------------------------+
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// CHWRMPSChangeObserver::ConstructL+
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// Symbian 2nd phase constructor can leave.+
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// -----------------------------------------------------------------------------+
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//+
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void CHWRMPSChangeObserver::ConstructL()+
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    {+
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    COMPONENT_TRACE1(_L( "HWRM Server - CHWRMPSChangeObserver::ConstructL()" ));+
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+
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    User::LeaveIfError(iProperty.Attach(iUid, iKey));+
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    +
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    // Call RunL to order notification and do the initial notifying of the client+
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    RunL();+
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+
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    COMPONENT_TRACE1(_L( "HWRM Server - CHWRMPSChangeObserver::ConstructL - return" ) );+
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    }+
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+
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// -----------------------------------------------------------------------------+
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// CHWRMPSChangeObserver::RunL+
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// Handle notification from pubsub session.+
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// -----------------------------------------------------------------------------+
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//+
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void CHWRMPSChangeObserver::RunL()+
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    {+
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    COMPONENT_TRACE1(_L( "HWRM Server - CHWRMPSChangeObserver::RunL()" ));+
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+
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    // Reorder notification+
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    OrderNotification();+
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+
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    // get value from pubsub+
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    TInt value(0);+
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    +
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    TInt err = iProperty.Get(value);+
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    +
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    // if no error or not found then no problem.+
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    // Otherwise leave as something went wrong+
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    if ( err == KErrNotFound || err == KErrNone )+
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        {+
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        iCallback.PSValueChanged(iUid, iKey, value);    +
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        }+
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    else+
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        {+
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        COMPONENT_TRACE2( _L( "HWRM Server - CHWRMPSChangeObserver::RunL(), err %d" ), err);+
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        User::Leave(err);+
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        }+
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+
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    COMPONENT_TRACE1(_L( "HWRM Server - CHWRMPSChangeObserver::RunL - return" ) );+
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    }+
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    +
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// -----------------------------------------------------------------------------+
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// CHWRMPSChangeObserver::RunError+
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// Handle error in RunL+
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// -----------------------------------------------------------------------------+
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//+
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#if defined(_DEBUG) && defined(COMPONENT_TRACE_FLAG)+
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TInt CHWRMPSChangeObserver::RunError(TInt aError)+
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#else+
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TInt CHWRMPSChangeObserver::RunError(TInt /*aError*/)+
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#endif+
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    {+
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    COMPONENT_TRACE2(_L( "HWRM Server - CHWRMPSChangeObserver::RunError(%d)" ), aError);+
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+
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    // Error occurred either while reordering notification or getting property value.+
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    // We can't really do anything about it, so ignore.+
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    // (possible errors are KErrPermissionDenied and KErrArgument, which indicate fundamental+
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    //  problem with property, and will be caught on the first RunL execution by ConstructL)+
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+
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    COMPONENT_TRACE2(_L( "HWRM Server - CHWRMPSChangeObserver::RunError - return %d" ), KErrNone );+
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+
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    return KErrNone;+
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    }+
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+
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// -----------------------------------------------------------------------------+
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// CHWRMPSChangeObserver::DoCancel+
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// Handle cancel order on this active object.+
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// -----------------------------------------------------------------------------+
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//+
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void CHWRMPSChangeObserver::DoCancel()+
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    {+
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    COMPONENT_TRACE1(_L( "HWRM Server - CHWRMPSChangeObserver::DoCancel()" ));+
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+
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    iProperty.Cancel();+
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+
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    COMPONENT_TRACE1(_L( "HWRM Server - CHWRMPSChangeObserver::DoCancel - return" ) );+
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    }+
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+
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// -----------------------------------------------------------------------------+
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// CHWRMPSChangeObserver::OrderNotification+
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// Order new notification from CenRep.+
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// -----------------------------------------------------------------------------+
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//+
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void CHWRMPSChangeObserver::OrderNotification()+
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    {+
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    COMPONENT_TRACE1(_L( "HWRM Server - CHWRMPSChangeObserver::OrderNotification()" ));+
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+
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	if (IsActive())+
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		{+
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		COMPONENT_TRACE1(_L( "HWRM Server - CHWRMPSChangeObserver::OrderNotification - returning early as already active" ) );	+
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		return;+
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		}+
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		+
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    iProperty.Subscribe(iStatus);+
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    SetActive();+
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+
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    COMPONENT_TRACE1(_L( "HWRM Server - CHWRMPSChangeObserver::OrderNotification - return" ) );+
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    }+
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+
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// End of File+
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