1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // locationdatabus.h

    15 // An ative object wrapper to managed the location data bus. This is the P&S bus

    16 // that the location managers (e.g. the AGPS manager and network manager)

    17 // publish onto. The location server and others subscribe to this bus.

    18 // 

    19 //

    20 

    21 /**

    22  @file

    23  @InternalComponent

    24 */

    25 

    26 #ifndef __LBSLOCATIONDATABUS_H__

    27 #define __LBSLOCATIONDATABUS_H__

    28 

    29 #include <e32base.h>

    30 #include "LbsInternalInterface.h"

    31 #include <lbssatellite.h>

    32 

    33 class MDataBusObserver;

    34 

    35 /**

    36 The panic codes for the location data bus object.

    37 */

    38 enum TLocDataBusPanic

    39 	{

    40 	/** 

    41 	An instance of the MLocDataBusObserver has not been passed to the object.

    42 	The panic category will be "LocDataBus". The panic value is zero.

    43 	*/

    44 	ELocDataBusObserverNotSet = 0

    45 	};

    46 

    47 

    48 /**

    49 Sanity wrapper around the RLbsPositionUpdate

    50 Assume something else has already called RLbsPositionUpdates::InitializeL()!

    51 Don't do this in the ConstructL, just call RLbsPositionUpdates::OpenL

    52 */

    53 class CAgpsDataBus : public CActive

    54 	{

    55 public:

    56 	static CAgpsDataBus* NewL(MDataBusObserver& aObserver, const TUid& aModuleId);

    57 	~CAgpsDataBus();

    58 	void Subscribe();

    59 	void UnSubscribe();

    60 	TInt GetLastPositionInfo(TPositionSatelliteInfo& satelliteInfo, TTime& actualTime, TUint& aAttributes, TUint& aMode);	

    61 

    62 private:

    63 	CAgpsDataBus(MDataBusObserver& aObserver, const TUid& aModuleId);

    64 	void ConstructL();

    65 	

    66 	// from CActive

    67 	void RunL();

    68 	void DoCancel();

    69 	TInt RunError(TInt aError);

    70 

    71 private:

    72 	TUid					iModuleId;

    73 	MDataBusObserver&		iObs;

    74 	RLbsPositionUpdates		iAGPSDataBus; // RProperty wrapper	

    75 	};

    76 

    77 #endif // __LBSLOCATIONDATABUS__