www.pudn.com > ExampleBluetoothChat.rar > BluetoothDeviceSearcher.cpp

/** 
* 
* @brief Definition of CBluetoothDeviceSearcher 
* 
* Copyright (c) EMCC Software Ltd 2003 
* @version 1.0 
*/ 
 
// Includes 
#include "BluetoothDeviceSearcher.h" 
#include "BluetoothDefinitions.h" 
#include "BluetoothObserver.h" 
 
 
/** 
* Factory Constructor. 
* Only available way to construct class. 
* This function can leave L, returning value is on Cleanup Stack C 
* @param none 
* @return new instance of the CBluetoothDeviceSearcher on Cleanup stack 
*/ 
CBluetoothDeviceSearcher* CBluetoothDeviceSearcher::NewLC(MBluetoothObserver &aBluetoothObserver) 
	{ 
	CBluetoothDeviceSearcher* self = new (ELeave) CBluetoothDeviceSearcher(aBluetoothObserver); 
	CleanupStack::PushL(self); 
	self->ConstructL(); 
	return self; 
	} 
 
/** 
* Factory Constructor. 
* Only available way to construct class. 
* This function can leave L 
* @param none 
* @return new instance of the CBluetoothDeviceSearcher 
*/ 
CBluetoothDeviceSearcher* CBluetoothDeviceSearcher::NewL(MBluetoothObserver &aBluetoothObserver) 
	{ 
	CBluetoothDeviceSearcher* self = CBluetoothDeviceSearcher::NewLC(aBluetoothObserver); 
	CleanupStack::Pop(self); 
	return self; 
	} 
 
/** 
* Constructor. 
* Private constructor. 
* @see NewL 
* @see NewLC 
* @param none 
* @return none 
**/ 
CBluetoothDeviceSearcher::CBluetoothDeviceSearcher(MBluetoothObserver &aBluetoothObserver) 
: CActive(0), iObserver(aBluetoothObserver) 
	{ 
	} 
 
/** 
* Destructor. 
* 
* @param none 
* @return none 
**/ 
CBluetoothDeviceSearcher::~CBluetoothDeviceSearcher() 
	{ 
	Deque(); 
	} 
 
/** 
* Second Stage Constructor. 
* This function can leave L 
* @param none 
* @see NewL 
* @see NewLC 
* @param none 
* @return none 
*/ 
void CBluetoothDeviceSearcher::ConstructL() 
	{ 
	CActiveScheduler::Add(this); 
	} 
 
/** 
* Select Device. 
* 
* RNotifier performs a search of local piconet, and provides a Selection List of all devices found, so that, 
* the User may select one to begin communication with 
* 
* @param aResponse parameter is populated with remote device information 
* @return errorcode 
**/ 
void CBluetoothDeviceSearcher::SelectDeviceL(TBTDeviceResponseParamsPckg& aResponse) 
	{ 
	iResponse = &aResponse;  // store a pointer to the response buffer 
 
	TUUID targetServiceClass(KServiceClass); 
	TBTDeviceClass deviceClass(KServiceClass); 
	TBTDeviceSelectionParams selectionFilter; 
	selectionFilter.SetUUID(targetServiceClass); 
	selectionFilter.SetDeviceClass(deviceClass); 
	// These filtering methods do not work at the time of writing, 
	// and ALL Bluetooth devices in range are returned 
 
	TBTDeviceSelectionParamsPckg selectionParams(selectionFilter); 
 
	User::LeaveIfError(iNotifier.Connect()); 
 
	iNotifier.StartNotifierAndGetResponse(iStatus, KDeviceSelectionNotifierUid, selectionParams, aResponse); 
	SetActive(); 
	} 
 
 
/** 
* RunL. 
* 
* Called when device selection process is completed. Notifies the observer 
* that a device has been selected. 
* 
* @param none 
* @return none 
**/ 
 
void CBluetoothDeviceSearcher::RunL() 
	{ 
	TInt retVal = iStatus.Int(); 
	if (retVal == KErrNone) 
		{ 
		if ((*iResponse)().IsValidDeviceName()) 
			{ 
			retVal = KErrNone; 
			} 
		} 
 
	iNotifier.CancelNotifier(KDeviceSelectionNotifierUid); 
	iNotifier.Close(); 
 
	iObserver.DeviceFoundL(retVal); 
	} 
 
 
/** 
* DoCancel. 
* 
* Called by active object framework when this object is cancelled 
* 
* @param none 
* @return none 
**/ 
 
void CBluetoothDeviceSearcher::DoCancel() 
	{ 
	iNotifier.CancelNotifier(KDeviceSelectionNotifierUid); 
	iNotifier.Close(); 
	}