diff -r a36b1e19a461 -r 989d2f495d90 serviceproviders/sapi_location/inc/locationcb.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/serviceproviders/sapi_location/inc/locationcb.h	Fri Jul 03 15:51:24 2009 +0100
@@ -0,0 +1,156 @@
+/*
+* Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:  Header file for location SAPI core implementation.
+*
+*/
+
+#ifndef C_LOCATIONCB_H
+#define C_LOCATIONCB_H
+
+#include <LiwCommon.h> 
+#include "locationservice.h"
+
+const TInt KGetLocationCB = 0 ;
+const TInt KTraceCB   = 1 ;
+
+/**
+ * CallBack fuction called by core dll locationnservice.lib on reciving
+ * Location updates from location server
+ * Implements HandleNotifyL() from base class MLocationCallBack
+ *
+ * @locationservice.lib dependency
+ * @see MLocationCallBack in locationservice.h for details.
+ */
+
+class LocationInterfaceCB : public MLocationCallBack
+    {
+    private :
+    MLiwNotifyCallback  *iCallBack ;
+    CLiwGenericParamList *iOutParmList ;
+    CLiwGenericParamList *iInParmList ;
+    TInt32 iTransactionId  ;
+    TPositionModuleInfo *iModuleInfo ;  
+    TUint iRequestType ;    
+    /**
+	 * Member variable representing what category of location information user is 
+	 * interested in
+	 */
+	 
+	 TInt iLocinfoCategory;      
+      
+
+
+    /**
+     * Default constructor , to controlled construction
+     */
+    LocationInterfaceCB( ); 
+
+    /**
+     * Overloaded constructor which registers the callback adders
+     *
+     * @param aCallBack: Callback object after reciving location updates from core class
+     * @param aInParamList: input paramater list for location request 
+     * @param aOutParamList: out put paramater list to be which will contained location information
+     * @param aModuleInfo module information of positioning module used
+     * @param aTransactionId: Tracnsaction Id from recived from LIW 
+     */
+     
+     LocationInterfaceCB( MLiwNotifyCallback* aCallBack , 
+     					  const CLiwGenericParamList* aInParmList ,	
+     				      TPositionModuleInfo* aModuleInfo,
+     				      TInt32 aTransactionId = 0 ) ;
+     				      
+    
+     
+
+    public :
+
+    /**
+     * Construction method for call back class
+     *
+     * @param aCallBack: Callback object after reciving location updates from core class
+     * @param aInParamList: input paramater list for location request 
+     * @param aOutParamList: out put paramater list to be which will contained location information
+     * @param aModuleInfo module information of positioning module used
+     * @param aTransactionId: Tracnsaction Id from recived from LIW 
+     */
+
+    static LocationInterfaceCB * NewL( MLiwNotifyCallback* aCallBack , 
+    									 const CLiwGenericParamList* aInParmList, 
+    									 TPositionModuleInfo* aModuleInfo ,
+    									 TInt32 aTransactionId = 0)  ;
+
+    /**
+     * Implementaion of HandleNotifyL() derived from  LocationInterfaceCB this function
+     * is called by core dll locationservice.dll on reciving location updates
+     *
+     * @aOutPos GenericPositioninfo class which contains location information
+     * @aError success/failure code passed by core dll.
+     */
+     
+    TInt HandleNotifyL( HPositionGenericInfo* aOutPos , TInt aError ) ;
+    
+    /**
+     * Function to set call back object type (Get location or Trace type), this is needed to 
+     * for sending Event notifications to users(KLiwEventCompleted/KLiwEventInProgress) for
+     * Getlocation and Trace Async calls 
+     *
+     * @aRequestType request type (Getlocation , Trace)
+     */ 
+    
+    inline void SetRequestType(TInt aRequestType)
+        {
+            iRequestType = aRequestType ;
+        }
+    
+    /**
+     * Function to get the type of request(Trace/GetLocation) associated with this async 
+     * object, 
+     */
+     
+     inline TUint GetRequestType(void) 
+        {
+        return iRequestType ;
+        }
+     MLiwNotifyCallback* GetCallBackobj()
+	     {
+	     return iCallBack;	
+	     }
+
+    /**
+     * GetTransactionId function returns transcation id associated with current async object
+     *
+     */
+     inline TInt32 GetTransactionId(void)
+        {
+          return iTransactionId ;
+        }
+    /**
+     * HandleL, an internal utility funtion which is called by HandleNotifyL method,
+     * This methods encapsulates all the leaving methods which could be traped by 
+     * HandleNotifyL method
+     */
+     
+     void HandleL(HPositionGenericInfo* aOutPos , TInt aError )  ;  
+     
+      
+    /**
+     * destructor 
+     */
+    virtual ~LocationInterfaceCB( ) ;  //Default destructor   
+
+
+    };
+
+#endif // C_LOCATIONCB_H
\ No newline at end of file