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/*
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* Copyright (c) 2004 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: Implementation of the active event observer.
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*
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*/
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// INCLUDE FILES
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#ifdef _DEBUG
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#include <e32svr.h>
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#endif
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#include "EnvironmentalReverbEventObserver.h"
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// CEnvironmentalReverbEventObserver::CEnvironmentalReverbEventObserver
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// C++ default 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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CEnvironmentalReverbEventObserver::CEnvironmentalReverbEventObserver()
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: CActive(CActive::EPriorityStandard),
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iStopped(EFalse)
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{
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}
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// -----------------------------------------------------------------------------
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// CEnvironmentalReverbEventObserver::ConstructL
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// Symbian 2nd phase constructor can leave.
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// -----------------------------------------------------------------------------
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//
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void CEnvironmentalReverbEventObserver::ConstructL(
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TMMFMessageDestinationPckg aMessageHandler,
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MCustomCommand& aCustomCommand,
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MEnvironmentalReverbCallback& aCallback )
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{
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CActiveScheduler::Add(this);
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iMessageHandler = aMessageHandler;
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iCustomCommand = &aCustomCommand;
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iCallback = &aCallback;
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}
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// -----------------------------------------------------------------------------
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// CEnvironmentalReverbEventObserver::NewL
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// Two-phased constructor.
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// -----------------------------------------------------------------------------
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//
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CEnvironmentalReverbEventObserver* CEnvironmentalReverbEventObserver::NewL(
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TMMFMessageDestinationPckg aMessageHandler,
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MCustomCommand& aCustomCommand,
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MEnvironmentalReverbCallback& aCallback )
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{
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CEnvironmentalReverbEventObserver* self = new(ELeave) CEnvironmentalReverbEventObserver();
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CleanupStack::PushL(self);
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self->ConstructL(aMessageHandler, aCustomCommand, aCallback);
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CleanupStack::Pop(self);
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return self;
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}
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// -----------------------------------------------------------------------------
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// CEnvironmentalReverbEventObserver::~CEnvironmentalReverbEventObserver
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// Destructor
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// -----------------------------------------------------------------------------
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//
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CEnvironmentalReverbEventObserver::~CEnvironmentalReverbEventObserver()
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{
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// We should not have to cancel the outstanding request because the message
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// handler will complete our request with KErrCancel in its destructor.
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Cancel();
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}
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// -----------------------------------------------------------------------------
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// CEnvironmentalReverbEventObserver::Start
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// Kickoff the event observer by issuing the first observation message.
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// -----------------------------------------------------------------------------
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//
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void CEnvironmentalReverbEventObserver::Start()
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{
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if( !iStopped && !IsActive() )
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{
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iCustomCommand->CustomCommandAsync(iMessageHandler, (TInt)EErfObserve, KNullDesC8, KNullDesC8, iDataPckgFrom, iStatus);
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iStopped = EFalse;
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SetActive();
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}
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}
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// -----------------------------------------------------------------------------
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// CEnvironmentalReverbEventObserver::Stop
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// -----------------------------------------------------------------------------
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//
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void CEnvironmentalReverbEventObserver::Stop()
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{
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iStopped = ETrue;
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}
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// -----------------------------------------------------------------------------
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// CEnvironmentalReverbEventObserver::RunL
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// Invoke by the active scheduler when a request completes, In this case, our
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// observation message has completed.
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// The proxy is notified. Afterwards, reissue the request to continue observation.
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// -----------------------------------------------------------------------------
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//
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void CEnvironmentalReverbEventObserver::RunL()
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CEnvironmentalReverbEventObserver::RunL()\n"));
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#endif
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if( iStatus == KErrNone )
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{
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iCallback->EnvironmentalReverbEvent(iDataPckgFrom);
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Start();
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}
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else
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{
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iStopped = ETrue;
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}
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}
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// -----------------------------------------------------------------------------
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// CEnvironmentalReverbEventObserver::DoCancel
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// Cancels the current and any on going requests/tasks.
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// -----------------------------------------------------------------------------
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//
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void CEnvironmentalReverbEventObserver::DoCancel()
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CEnvironmentalReverbEventObserver::DoCancel()\n"));
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#endif
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iStopped = ETrue;
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}
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// End of file
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