bluetoothappprofiles/avrcp/remconbeareravrcp/src/playerstatewatcher.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 19 Feb 2010 22:59:18 +0200
branchRCL_3
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parent 0 f63038272f30
child 49 9866e1d49556
permissions -rw-r--r--
Revision: 201003 Kit: 201007
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// Copyright (c) 2008-2009 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 "mediabrowse.h"
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#include "avrcputils.h"
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#include "commandhandlerinterface.h"
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#include "internalcommand.h"
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#include "mediabrowse.h"
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#include "playerstatewatcher.h"
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#include "remconcommandinterface.h"
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#include "avrcplog.h"
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#include "playerinformation.h"
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CPlayerWatcherBase::CPlayerWatcherBase(MRemConCommandInterface& aCommandInterface)
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	: iCommandInterface(aCommandInterface), iCommands()
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	{
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	LOG_FUNC;
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	}
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CPlayerWatcherBase::~CPlayerWatcherBase()
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	{
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	LOG_FUNC;
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	}
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void CPlayerWatcherBase::StopWatchingPlayer(TRemConClientId aClientId)
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	{
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	LOG_FUNC;
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	CInternalCommand* command = *iCommands.Find(aClientId);
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	__ASSERT_DEBUG(command, AVRCP_PANIC(ENotWatchingPlayer));
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	TUint transId = command->RemConCommandId();
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	iCommandInterface.MrcciCommandExpired(transId);
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0
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	iCommands.Remove(aClientId);
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	command->DecrementUsers();
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	}
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void CPlayerWatcherBase::MessageSent(CAvrcpCommand& /*aCommand*/, TInt /*aSendResult*/)
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	{
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	LOG_FUNC;
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	__DEBUG_ONLY(AVRCP_PANIC(ELowerInterfaceUsedOnInternalHandler));
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	}
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void CPlayerWatcherBase::MaxPacketSize(TInt /*aMtu*/)
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	{
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	LOG_FUNC;
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	__DEBUG_ONLY(AVRCP_PANIC(ELowerInterfaceUsedOnInternalHandler));
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	}
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void CPlayerWatcherBase::ReceiveCommandL(const TDesC8& /*aMessageInformation*/, SymbianAvctp::TTransactionLabel /*aTransLabel*/, const TBTDevAddr& /*aAddr*/)
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	{
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	LOG_FUNC;
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	__DEBUG_ONLY(AVRCP_PANIC(ELowerInterfaceUsedOnInternalHandler));
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	}
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CInternalCommand& CPlayerWatcherBase::FindCommand(TUid __DEBUG_ONLY(aInterfaceUid),
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		TUint aTransactionId, TRemConClientId& aFoundClientId)
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	{
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	__ASSERT_DEBUG(aInterfaceUid == TUid::Uid(KRemConPlayerInformationUid) || aInterfaceUid == TUid::Uid(KRemConMediaBrowseApiUid), AVRCP_PANIC(EResponseForWrongInterface));
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	THashMapIter<TRemConClientId, CInternalCommand*> commandIter(iCommands);
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	CInternalCommand* command = NULL;
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	while(commandIter.NextValue())
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		{
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		command = *commandIter.CurrentValue();
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		if(command->RemConCommandId() == aTransactionId)
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			{
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			aFoundClientId = *commandIter.CurrentKey();
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			break;
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			}
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		}
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	// If command is NULL we reached the end of our iter without finding the match
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	__ASSERT_DEBUG(command, AVRCP_PANIC(EUnmatchedResponseFromRemCon));
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	return *command;
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	}
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TInt CPlayerWatcherBase::SendRemConResponse(TUid aInterfaceUid, TUint aTransactionId, RBuf8& aData)
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	{
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	LOG_FUNC;
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	TRemConClientId clientId;
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	CInternalCommand& command = FindCommand(aInterfaceUid, aTransactionId, clientId);
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	ReceiveUpdate(command, clientId, aData);
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	return KErrNone;
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	}
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void CPlayerWatcherBase::SendReject(TUid aInterfaceUid, TUint aTransactionId)
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	{
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	TRemConClientId clientId;
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	(void)FindCommand(aInterfaceUid, aTransactionId, clientId);
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	ReceiveReject(clientId);
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	}
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void CPlayerWatcherBase::Disconnect()
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	{
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	LOG_FUNC;
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	}
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   115
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CPlayStatusWatcher* CPlayStatusWatcher::NewL(MPlayStatusObserver& aObserver, MRemConCommandInterface& aCommandInterface)
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	{
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	LOG_STATIC_FUNC;
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	CPlayStatusWatcher* watcher = new(ELeave)CPlayStatusWatcher(aObserver, aCommandInterface);
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	return watcher;
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	}
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   122
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CPlayStatusWatcher::CPlayStatusWatcher(MPlayStatusObserver& aObserver,
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		MRemConCommandInterface& aCommandInterface)
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	: CPlayerWatcherBase(aCommandInterface), iObserver(aObserver)
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	{
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	LOG_FUNC;
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	}
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CPlayStatusWatcher::~CPlayStatusWatcher()
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	{
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	LOG_FUNC;
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	}
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   134
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void CPlayStatusWatcher::StartWatchingPlayerL(TRemConClientId aClientId)
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	{
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	LOG_FUNC;
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	__ASSERT_DEBUG(!iCommands.Find(aClientId), AVRCP_PANIC(EAlreadyWatchingPlayer));
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	CInternalCommand* command = CInternalCommand::NewL(TUid::Uid(KRemConPlayerInformationUid),
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			0,
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			EGetPlayStatusUpdate,
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			KNullDesC8);
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	CleanupStack::PushL(command);
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	iCommands.InsertL(aClientId, command);
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	CleanupStack::Pop(command);
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	command->IncrementUsers();
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   149
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	// Initially request uid notification relative to stopped
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	SendPlayStatusUpdateRequest(*command, aClientId, MPlayerEventsObserver::EStopped);
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	}
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   153
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void CPlayStatusWatcher::SendPlayStatusUpdateRequest(CInternalCommand& aCommand, TRemConClientId& aClientId, MPlayerEventsObserver::TPlaybackStatus aPlaybackStatus)
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	{
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	LOG_FUNC;
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   157
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	RRemConPlayerInformationGetPlayStatusUpdateRequest request;
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	request.iStatus = aPlaybackStatus;
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   160
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	TBuf8<sizeof(MPlayerEventsObserver::TPlaybackStatus)> buf;
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	TRAPD(err, request.WriteL(buf));
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   163
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	// We know how big the request is so this should never fail
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	__ASSERT_DEBUG(err == KErrNone, AVRCP_PANIC(EUidUpdateRequestWriteFailure));
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   166
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	TUint transId = iCommandInterface.MrcciNewTransactionId();
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	TRAP(err, aCommand.ResetL(transId, buf));
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   169
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	if(err == KErrNone)
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		{
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		iCommandInterface.MrcciNewCommand(aCommand, aClientId);
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		}
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	else
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		{
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		// Doom
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		iObserver.MpsoError(aClientId);
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		}
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	}
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void CPlayStatusWatcher::ReceiveUpdate(CInternalCommand& aCommand, TRemConClientId aClientId, RBuf8& aData)
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	{
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	LOG_FUNC;
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	// Read 4 byte Big-Endian error code before the payload
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	RAvrcpIPCError errorResponse;
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	TRAPD(err, errorResponse.ReadL(aData));
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	err = err ? err : errorResponse.iError;
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   189
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	RRemConPlayerInformationGetPlayStatusUpdateResponse response;
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   191
	if(!err)
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   192
		{
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		// Parse the rest of the response (minus error code)
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		TRAP(err, response.ReadL(aData.RightTPtr(aData.Length() - KLengthErrorResponse)));
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   195
		}
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   196
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	aData.Close(); // data has been used now
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   198
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   199
	if(!err)
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		{
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		iObserver.MpsoPlayStatusChanged(aClientId, response.iStatus);
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		SendPlayStatusUpdateRequest(aCommand, aClientId, response.iStatus);
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   203
		}
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	else
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		{
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		// Should never get here with a valid player.  This client is
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   207
		// sending us junk.
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		iObserver.MpsoError(aClientId);
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   209
		}
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	}
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   211
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void CPlayStatusWatcher::ReceiveReject(TRemConClientId aClientId)
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	{
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	LOG_FUNC;
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   215
	iObserver.MpsoError(aClientId);
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   216
	}
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   217
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CUidWatcher* CUidWatcher::NewL(MUidObserver& aObserver,
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		MRemConCommandInterface& aCommandInterface)
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	{
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   221
	LOG_STATIC_FUNC;
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   222
	CUidWatcher* watcher = new(ELeave)CUidWatcher(aObserver, aCommandInterface);
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   223
	return watcher;
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   224
	}
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   225
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   226
CUidWatcher::CUidWatcher(MUidObserver& aObserver,
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		MRemConCommandInterface& aCommandInterface)
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	: CPlayerWatcherBase(aCommandInterface), iObserver(aObserver)
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   229
	{
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	LOG_FUNC;
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	}
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CUidWatcher::~CUidWatcher()
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	{
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	LOG_FUNC;
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	}
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void CUidWatcher::StartWatchingPlayerL(TRemConClientId aClientId)
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	{
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	LOG_FUNC;
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	__ASSERT_DEBUG(!iCommands.Find(aClientId), AVRCP_PANIC(EAlreadyWatchingPlayer));
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	CInternalCommand* command = CInternalCommand::NewL(TUid::Uid(KRemConMediaBrowseApiUid),
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			0,
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			EMediaLibraryStateCookieUpdateOperationId,
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			KNullDesC8);
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	CleanupStack::PushL(command);
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	iCommands.InsertL(aClientId, command);
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	CleanupStack::Pop(command);
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	command->IncrementUsers();
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	// Initially request uid notification relative to 0 uid counter
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	SendUidUpdateRequest(*command, aClientId, 0);
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	}
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void CUidWatcher::SendUidUpdateRequest(CInternalCommand& aCommand, TRemConClientId& aClientId, TUint16 aUidCounter)
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	{
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	LOG_FUNC;
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	RRemConUidsChangedRequest request;
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	request.iInitialUidCounter = aUidCounter;
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	TBuf8<sizeof(TUint16)> buf;
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	TRAPD(err, request.WriteL(buf));
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	// We know how big the request is so this should never fail
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	__ASSERT_DEBUG(err == KErrNone, AVRCP_PANIC(EUidUpdateRequestWriteFailure));
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	TUint transId = iCommandInterface.MrcciNewTransactionId();
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	TRAP(err, aCommand.ResetL(transId, buf));
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	if(err == KErrNone)
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		{
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		iCommandInterface.MrcciNewCommand(aCommand, aClientId);
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		}
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	else
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		{
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		// Doom
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		iObserver.MuoError(aClientId);
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		}
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	}
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void CUidWatcher::ReceiveUpdate(CInternalCommand& aCommand, TRemConClientId aClientId, RBuf8& aData)
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	{
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	LOG_FUNC;
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	RRemConUidsChangedResponse response;
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	TRAPD(err, response.ReadL(aData));
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	aData.Close(); // data has been used now
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	if(!err)
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		{
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		iObserver.MuoUidChanged(aClientId, response.iUidCounter);
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		SendUidUpdateRequest(aCommand, aClientId, response.iUidCounter);
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		}
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	else
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		{
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		// Should never get here with a valid player.  This client is
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		// sending us junk.
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		iObserver.MuoError(aClientId);
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		}
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	}
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void CUidWatcher::ReceiveReject(TRemConClientId aClientId)
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	{
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	LOG_FUNC;
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	iObserver.MuoError(aClientId);
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	}
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