/*
* Copyright (c) 2008 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: Subscribes properties from P&S
*
*/
#include "mmpropertysubscriber.h"
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
//
CMmPropertySubscriber::CMmPropertySubscriber(MMmPropertyChangeObserver& aObserver)
: CActive( EPriorityStandard ),
iPropertyChangeObserver(aObserver)
{
}
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
//
CMmPropertySubscriber* CMmPropertySubscriber::NewLC(
const TUid aUid,
const TUint32 aKey,
MMmPropertyChangeObserver& aObserver)
{
CMmPropertySubscriber* self = new ( ELeave ) CMmPropertySubscriber(aObserver);
CleanupStack::PushL(self);
self->ConstructL(aUid,aKey);
return self;
}
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
//
CMmPropertySubscriber* CMmPropertySubscriber::NewL(
const TUid aUid,
const TUint32 aKey,
MMmPropertyChangeObserver& aObserver)
{
CMmPropertySubscriber* self = CMmPropertySubscriber::NewLC(aUid,aKey,aObserver);
CleanupStack::Pop(); // self;
return self;
}
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
//
void CMmPropertySubscriber::ConstructL(
const TUid aUid,
const TUint32 aKey)
{
User::LeaveIfError( iProperty.Attach( aUid, aKey ) );
CActiveScheduler::Add( this); // Add to scheduler
// initial subscription and process current property value
RunL();
}
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
//
CMmPropertySubscriber::~CMmPropertySubscriber()
{
Cancel(); // Cancel any request, if outstanding
iProperty.Close();
}
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
//
void CMmPropertySubscriber::DoCancel()
{
iProperty.Close();
}
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
//
void CMmPropertySubscriber::RunL()
{
// resubscribe before processing new value to prevent missing updates
iProperty.Subscribe( iStatus );
SetActive();
TInt intValue;
if( iProperty.Get( intValue ) != KErrNotFound )
{
iPropertyChangeObserver.PropertyChangedL(intValue);
}
}