author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 24 Nov 2009 08:56:33 +0200 | |
changeset 33 | 50974a8b132e |
parent 32 | 8d692d9f828f |
child 50 | 5dae2c62e9b6 |
child 55 | eaf3908907b6 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 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 the License "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: Implements location SAPI core class. |
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* |
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*/ |
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#include "locationcoreimp.h" |
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#include "locationservice.h" |
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CGetLoc::CGetLoc() : |
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CActive(CActive::EPriorityStandard) |
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{ |
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} |
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CGetLoc::~CGetLoc() |
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{ |
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iPositioner.Close() ; |
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delete iGenericPosInfo; |
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iLocationService = NULL; |
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} |
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/** |
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* Funtion name: ConstructL |
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* Constructs an active object and initalises this object |
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* with subsessions for communicating with location server |
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*/ |
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void CGetLoc::ConstructL(RPositionServer& aPositionServer , |
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TPositionFieldIdList aList , |
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TInt aRequestType, |
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TPositionModuleId aModuleId) |
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// Initialise the position request sequence |
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DoInitialiseL(); |
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if( aModuleId.iUid ) |
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{ |
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//Open a new subsession with position server |
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User :: LeaveIfError((this->iPositioner).Open(aPositionServer,aModuleId)); |
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} |
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else |
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{ |
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//Open a new subsession with position server using default module |
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User :: LeaveIfError((this->iPositioner).Open(aPositionServer)) ; |
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} |
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//CleanupClosePushL(iPositioner); |
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//Set the identity of this particular requestor |
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User::LeaveIfError( (this->iPositioner).SetRequestor( |
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CRequestor::ERequestorService, |
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CRequestor::EFormatApplication, |
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KIdentity ) ); |
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this->iPosInfoBase = &(this->iPositionInfo); |
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this->iRequestType = aRequestType; |
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this->iGenericPosInfo = HPositionGenericInfo :: NewL(); |
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//CleanupStack :: PushL(this->iGenericPosInfo); |
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if(aList) |
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{ |
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User :: LeaveIfError((this->iGenericPosInfo)->SetRequestedFields(aList)); |
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} |
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//CleanupStack ::Pop(this->iGenericPosInfo ); |
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//CleanupStack::Pop(&iPositioner); |
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} |
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/** |
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* Function name: NewL , |
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* Constructs a new core implementation object which will later |
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* Be added to active schedular |
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* on success returns pointer to constructed object, else leaves |
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* with various error codes |
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*/ |
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EXPORT_C CGetLoc* CGetLoc::NewL( RPositionServer& aPositionServer , |
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TPositionFieldIdList aList , |
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TInt aRequestType, |
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TInt /*aLocationInfoCategory*/, |
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TPositionModuleId aModuleId) |
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{ |
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//Check for the presence of ActiveScheduler |
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//Create the object |
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CActiveScheduler* current = CActiveScheduler::Current(); |
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if(!current) |
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{ |
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User::Leave(KErrNotFound); //Leave if consumer is not event driven |
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} |
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CGetLoc* self = new( ELeave ) CGetLoc(); |
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CleanupStack::PushL(self); |
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self->ConstructL(aPositionServer , |
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aList , |
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aRequestType, |
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aModuleId); |
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CleanupStack::Pop(self); |
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//Return pointer to the created object |
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return self; |
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} |
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TInt CGetLoc::DoInitialiseL() |
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{ |
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iCallBack = NULL ; |
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iRequestStatus =0; |
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return KErrNone ; |
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} |
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/** |
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* CGetLoc :: GetLocationUpdates accepts update options from the consumers and |
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* submits an aynchronous request to the location server |
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* Returns the status of job submitted |
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*/ |
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TInt CGetLoc::GetLocationUpdates(CLocationService* aLocationService,MLocationCallBack* aCallBackObj, |
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const TPositionUpdateOptions* aUpdateOptions) |
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{ |
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//Pointer to CLocationService used in RunL |
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iLocationService = aLocationService; |
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//Register the call back address |
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iCallBack = aCallBackObj ; |
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TInt error = KErrNone ; |
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//First set the update options before Issuing Notification request to server |
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if(aUpdateOptions) |
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{ |
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error = iPositioner.SetUpdateOptions(*aUpdateOptions); |
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if(error) |
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{ |
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return error ; |
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} |
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} |
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else //set the default values |
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{ |
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TPositionUpdateOptions updateopts ; |
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// Set update interval to one second to receive one position data per second |
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updateopts.SetUpdateInterval(TTimeIntervalMicroSeconds(KSUpdateInterval)); |
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// If position server could not get position |
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// In two minutes it will terminate the position request |
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updateopts.SetUpdateTimeOut(TTimeIntervalMicroSeconds(KSUpdateTimeOut)); |
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// Positions which have time stamp below KMaxAge can be reused |
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updateopts.SetMaxUpdateAge(TTimeIntervalMicroSeconds(KSMaxAge)); |
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// Enables location framework to send partial position data |
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updateopts.SetAcceptPartialUpdates(FALSE); |
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iPositioner.SetUpdateOptions(updateopts) ; |
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} |
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//Now add this object as part of active schedular |
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if(!(this->IsAdded())) |
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{ |
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CActiveScheduler :: Add(this) ; |
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} |
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iPositioner.NotifyPositionUpdate( *iGenericPosInfo, iStatus ); |
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if (!IsActive()) |
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{ |
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SetActive(); |
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} |
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return KErrNone ; |
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} |
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/** |
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* RunL Method called by Active Scheduler after reciving an event |
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* This method actually calls the registered callbacks |
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*/ |
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void CGetLoc :: RunL() |
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{ |
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switch ( iStatus.Int() ) |
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{ |
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case KErrNone: //For both KErrNone nad partial update call the same call back |
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case KPositionPartialUpdate : |
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{ |
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if(iCallBack) |
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{ |
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iCallBack->HandleNotifyL(iGenericPosInfo , KErrNone ) ; |
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} |
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if(iRequestType == KTraceRequest) |
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{ |
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if(this->IsAdded()) |
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{ |
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if(!this->IsStatusComplete()) |
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{ |
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iPositioner.NotifyPositionUpdate( *iGenericPosInfo, iStatus ); |
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32 | 240 |
if (!IsActive()) |
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{ |
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SetActive(); |
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} |
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19 | 244 |
} |
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} |
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} |
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break ; |
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} |
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case KErrTimedOut: |
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{ |
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iCallBack->HandleNotifyL(NULL , iStatus.Int()) ; |
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//Re-issue the request even though there's an error |
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255 |
if (iRequestType == KTraceRequest) |
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256 |
{ |
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if (this->IsAdded() && !this->IsActive()) |
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258 |
{ |
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if (!this->IsStatusComplete()) |
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{ |
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iPositioner.NotifyPositionUpdate( *iGenericPosInfo, |
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iStatus); |
32 | 263 |
if (!IsActive()) |
264 |
{ |
|
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SetActive(); |
|
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} |
|
22
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} |
19 | 268 |
|
22
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269 |
} |
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270 |
} |
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271 |
break; |
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272 |
} |
19 | 273 |
case KErrArgument: |
274 |
case KPositionQualityLoss: //Need to check this returnig s60 error code from here |
|
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case KErrNotFound : //Service provider not available, or gone down in between |
|
276 |
{ |
|
277 |
||
278 |
iCallBack->HandleNotifyL(NULL , iStatus.Int()) ; |
|
279 |
break ; |
|
280 |
} |
|
281 |
||
282 |
default : |
|
283 |
{ |
|
284 |
||
285 |
iCallBack->HandleNotifyL(NULL , iStatus.Int()) ; |
|
286 |
break ; |
|
287 |
||
288 |
} |
|
289 |
} //End of Switch |
|
22
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290 |
if(iRequestType == KGetLocationRequest) |
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291 |
{ |
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|
292 |
//Delete the Active Object associated with this request since it is completed |
19 | 293 |
|
22
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294 |
if(iLocationService) |
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295 |
{ |
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296 |
iLocationService->CancelService(iCallBack->GetTransactionId()); |
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297 |
} |
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Revision: 200931
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|
298 |
} |
19 | 299 |
|
300 |
} |
|
301 |
||
302 |
/** |
|
303 |
*DoCancel Method called by Cancel Method |
|
304 |
*/ |
|
305 |
void CGetLoc :: DoCancel() |
|
306 |
{ |
|
307 |
//Check weather any one has registered for callbacks then |
|
308 |
if(iCallBack) |
|
309 |
{ |
|
310 |
iPositioner.CancelRequest(EPositionerNotifyPositionUpdate); |
|
311 |
} |
|
312 |
||
313 |
||
314 |
} |