bluetoothengine/bteng/bttoggle/src/bttoggle.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 12 Mar 2010 15:43:23 +0200
branchRCL_3
changeset 10 0707dd69d236
parent 1 6a1fe72036e3
child 13 b6f55cd40afd
permissions -rw-r--r--
Revision: 201007 Kit: 201008
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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 "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:  Bluetooth Toggle application is being used by Telephony for 
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 *  							switching on/off Bluetooth when a long key press of asterisk 
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 *  							is detected 
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 *
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*/
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//  Include Files  
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#include "bttoggle.h"
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#include "btengprivatecrkeys.h"
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#include "btengsrvbbconnectionmgr.h"
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#include "debug.h"
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#include <e32base.h>
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#include <e32std.h>
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void Panic(TBTTogglePanic aPanic)
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  {
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  User::Panic(KBTTogglePanicCat, aPanic);
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  }
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LOCAL_C void DoStartL()
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  {
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  //Create active scheduler (to run active objects)
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  CActiveScheduler* scheduler = new (ELeave) CActiveScheduler();
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  CleanupStack::PushL (scheduler );
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  CActiveScheduler::Install (scheduler );
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  CBTToggle* bttoggle = CBTToggle::NewL();			
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  bttoggle->ToggleBT();
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  CActiveScheduler::Start();
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  delete bttoggle; 		
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  CleanupStack::PopAndDestroy (scheduler );
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  return; 
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  }
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//  Global Functions
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GLDEF_C TInt E32Main()
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  {	 	
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  CTrapCleanup* cleanup = CTrapCleanup::New();	
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  // Run application code inside TRAP harness		
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  TRAPD(mainError, DoStartL());
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  if (mainError)
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    {
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    TRACE_INFO((_L("[BTENG][BTTOGGLE]DoStartL error: %d" ), mainError))
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    }
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  delete cleanup;		
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  return KErrNone;
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  }
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// ==========================================================
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// CBTToggle::CBTToggle()
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// Constructor
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// ==========================================================
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//
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CBTToggle::CBTToggle() : CActive(EPriorityStandard)
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		    {		
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		    }
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// ==========================================================
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// CBTToggle::~CBTToggle()
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// Destructor
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// ==========================================================
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//
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CBTToggle::~CBTToggle()
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  {
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  TRACE_FUNC_ENTRY
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  Cancel(); 		
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  delete iSettings; 	
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  iNotifier.Close();		
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  iLinkCountProperty.Close();
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  TRACE_FUNC_EXIT
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  }
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// ==========================================================
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// CBTToggle::ConstructL
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// 
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// ==========================================================
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//
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void CBTToggle::ConstructL()
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  {
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  TRACE_FUNC_ENTRY		
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  iSettings = CBTEngSettings::NewL(NULL);	
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  CActiveScheduler::Add(this); 	
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  iActiveNotifier = ENoneQuery; 
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  TInt errConnect = iNotifier.Connect();	
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  if (errConnect)
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    {
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    TRACE_INFO((_L("[BTENG][BTTOGGLE] iNotifier connect fail: %d" ), errConnect))
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    User::Leave(errConnect);
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    }				
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  User::LeaveIfError( iLinkCountProperty.Attach( KPropertyUidBluetoothCategory, 
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      KPropertyKeyBluetoothGetPHYCount ) );	  
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  TRACE_FUNC_EXIT
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  }
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// ==========================================================
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// CBTToggle::NewL
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//
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// ==========================================================
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//
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CBTToggle* CBTToggle::NewL()
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  {
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  TRACE_FUNC_ENTRY
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  CBTToggle* self = new ( ELeave ) CBTToggle();
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  CleanupStack::PushL(self);  
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  self->ConstructL();
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  CleanupStack::Pop(self);
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  TRACE_FUNC_EXIT
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  return self; 
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  }
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// ==========================================================
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// CBTToggle::ToggleBT
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// Toggles Bluetooth on or off and shows dialog 
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// (if the BT is switched for the first time after flashing)
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// and notification
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// ==========================================================
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//
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void CBTToggle::ToggleBT()
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  {
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  TRACE_FUNC_ENTRY	
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  TBTPowerStateValue state;	
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  iSettings->GetPowerState(state);	  
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  //BT off
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  if (EBTPowerOff == state)
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    {					
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    TBool isInOffline = CheckOfflineMode(); 
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    if (isInOffline) //Offline mode
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      {					
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      TRACE_INFO((_L("[BTENG][BTTOGGLE]Offline mode") ))
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      SwitchBtOnWithPowerNotif(); 						
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      }
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    else //other than offline
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      {									
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      TBuf<KHCILocalDeviceNameMaxLength> localName;
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      iSettings->GetLocalName(localName);														
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      //There is no BT local name defined		
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      if (0 >= localName.Length()) 
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        {																
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        SwitchBtOnWithPowerNotif(); 
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        }
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      else //BT name already defined
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        {				
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        ChangeBtPowerMode(EBTPowerOn);
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        }				
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      } 		
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    } 	
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  else //BT on 
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    {				
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    TInt linkCount = 0; 
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    TInt errLinkCount = iLinkCountProperty.Get( linkCount );		
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    TRACE_INFO((_L("[BTENG][BTTOGGLE] linkCount: %d error: %d" ), linkCount, errLinkCount))		
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    //BT Connected or error obtaining link count (in the case of error, we are cautious and assume BT is connected)
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    if (errLinkCount || linkCount > 0)
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      {
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      TRACE_INFO((_L("[BTENG][BTTOGGLE]Ongoing BT connection") ))								
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      __ASSERT_DEBUG(iActiveNotifier == ENoneQuery, Panic(EBTToggleInvalidStateCloseConnectionQuery));
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      iActiveNotifier = ECloseConnectionQuery;						
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      iPckgGenericQuery().iMessageType = EBTSwitchOffAnyway;
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      iPckgGenericQuery().iNameExists = EFalse;
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      iNotifier.StartNotifierAndGetResponse(iStatus, KBTGenericQueryNotifierUid, iPckgGenericQuery, iConnQuery );			
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      SetActive();															
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      }	
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    //No open connections
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    else
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      {
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      TRACE_INFO((_L("[BTENG][BTTOGGLE] No BT connections") ))
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      ChangeBtPowerMode(EBTPowerOff);
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      }					 
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    }
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  TRACE_FUNC_EXIT	
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  }
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// ==========================================================
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// CBTToggle::CheckOfflineMode
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// Checks whether current profile is Offline  
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// ==========================================================
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//
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TBool CBTToggle::CheckOfflineMode()
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  {
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  TRACE_FUNC_ENTRY
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  TCoreAppUIsNetworkConnectionAllowed offline = ECoreAppUIsNetworkConnectionAllowed;  
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  TBTEnabledInOfflineMode enabledInOffline; 
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  iSettings->GetOfflineModeSettings(offline, enabledInOffline);	
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  TRACE_FUNC_EXIT
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  return !offline; 	
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  }
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// ==========================================================
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// CBTToggle::SwitchBtOnWithPowerNotif
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// Switches BT on using Power Mode notifier   
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// ==========================================================
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//
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void CBTToggle::SwitchBtOnWithPowerNotif()
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  {	
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  TRACE_FUNC_ENTRY
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  __ASSERT_DEBUG(iActiveNotifier == ENoneQuery, Panic(EBTToggleInvalidStatePowerModeQuery));
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  iActiveNotifier = EPowerModeQuery;
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  // EBTNameQuery is used here as the message type, since the local device name may be modified by the user upon power-on.
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  iPckgGenericQuery().iMessageType = EBTNameQuery;			
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  iNotifier.StartNotifierAndGetResponse(iStatus, KPowerModeSettingNotifierUid, iPckgGenericQuery, iPowerResult );				
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  SetActive();
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  TRACE_FUNC_EXIT 	
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  }
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// ==========================================================
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// CBTToggle::ChangeBtPowerMode
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// Change BT Power Mode using CBTEngSettings API 
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// and show notification
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// ==========================================================
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//
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TInt CBTToggle::ChangeBtPowerMode(TBTPowerStateValue aNewPowerState)
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  {
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   241
  TRACE_FUNC_ENTRY
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  __ASSERT_DEBUG(iActiveNotifier == ENoneQuery, Panic(EBTToggleInvalidStateChangeBtPowerMode));
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   243
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  TRequestStatus *stat = &iStatus; 
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  TInt errPower = iSettings->SetPowerState(aNewPowerState);					
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  if (KErrNone == errPower)
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    {
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    ShowNotification( static_cast<TBool>(aNewPowerState) );
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    }
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  iActiveNotifier = EFakeNotif; 
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  iStatus = KRequestPending;
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  User::RequestComplete(stat, KErrNone);
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  SetActive();
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  TRACE_FUNC_EXIT
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  return errPower; 	
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  }
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// ==========================================================
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// CBTToggle::ShowNotification
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// Presents generic info notification about BT on (ETrue) 
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   263
// and BT off (EFalse)  
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// ==========================================================
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   265
//
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   266
void CBTToggle::ShowNotification( TBool aStatus )
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   267
  {
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  TRACE_FUNC_ENTRY
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  TBTGenericInfoNotiferParamsPckg pckgGenericInfo; 	 	 	 
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  TBuf8<sizeof(TInt)> result;
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   271
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  //BT turned on
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  if (aStatus)
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   274
    {
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   275
    pckgGenericInfo().iMessageType = EBTSwitchedOn;  		 
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   276
    }
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  //BT turned off
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   278
  else
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   279
    {
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   280
    pckgGenericInfo().iMessageType = EBTSwitchedOff;		
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   281
    }
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   282
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  //Cancel if there is any outstanding notification
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   284
  Cancel();
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   285
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  //Start new notification
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   287
  iNotifier.StartNotifier(KBTGenericInfoNotifierUid, pckgGenericInfo, result);	
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   288
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  TRACE_FUNC_EXIT
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   290
  }
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   291
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   292
// ==========================================================
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   293
// CBTToggle::DoCancel
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   294
// Cancel 
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   295
// ==========================================================
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   296
//
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   297
void CBTToggle::DoCancel()
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   298
  {	
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   299
  TRACE_FUNC_ENTRY
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   300
  if ( EPowerModeQuery == iActiveNotifier )
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parents:
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   301
    {
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   302
    iNotifier.CancelNotifier(KPowerModeSettingNotifierUid); 		
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   303
    }
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   304
  else if ( ECloseConnectionQuery == iActiveNotifier ) 
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parents:
diff changeset
   305
    {
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   306
    iNotifier.CancelNotifier(KBTGenericQueryNotifierUid); 
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parents:
diff changeset
   307
    }
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parents:
diff changeset
   308
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   309
  // For all cancels, we must reset iActiveNotifier back to ENoneQuery
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   310
  // to permit another request to be made.
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   311
  iActiveNotifier = ENoneQuery;
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parents:
diff changeset
   312
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   313
  TRACE_FUNC_EXIT
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parents:
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   314
  }
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parents:
diff changeset
   315
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   316
// ==========================================================
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parents:
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   317
// CBTToggle::RunL
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   318
// Inherited from CActive
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parents:
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   319
// ==========================================================
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parents:
diff changeset
   320
//
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parents:
diff changeset
   321
void CBTToggle::RunL()
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parents:
diff changeset
   322
  {
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   323
  TRACE_FUNC_ENTRY	
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parents:
diff changeset
   324
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   325
  User::LeaveIfError(iStatus.Int());
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parents:
diff changeset
   326
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parents:
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   327
  // For all completes, we must reset iActiveNotifier back to ENoneQuery
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parents:
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   328
  // to permit another request to be made.
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parents:
diff changeset
   329
  switch (iActiveNotifier)
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parents:
diff changeset
   330
    {							
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parents:
diff changeset
   331
    case EPowerModeQuery:				
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   332
      iActiveNotifier = ENoneQuery;
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parents:
diff changeset
   333
      ShowNotification(ETrue);
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parents:
diff changeset
   334
      CActiveScheduler::Stop();
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parents:
diff changeset
   335
      break; 			
f63038272f30 Revision: 201001
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parents:
diff changeset
   336
    case ECloseConnectionQuery:							
f63038272f30 Revision: 201001
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parents:
diff changeset
   337
      iActiveNotifier = ENoneQuery;
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parents:
diff changeset
   338
      if (iConnQuery()) //user wants to stop existing connection
f63038272f30 Revision: 201001
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parents:
diff changeset
   339
        {
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parents:
diff changeset
   340
        ChangeBtPowerMode(EBTPowerOff);										
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   341
        }					
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   342
      else
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   343
        {
f63038272f30 Revision: 201001
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parents:
diff changeset
   344
        CActiveScheduler::Stop();
f63038272f30 Revision: 201001
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parents:
diff changeset
   345
        }																				
f63038272f30 Revision: 201001
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parents:
diff changeset
   346
      break;											
f63038272f30 Revision: 201001
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parents:
diff changeset
   347
    default: //ENoneQuery or EFakeNotif
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
      iActiveNotifier = ENoneQuery;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
      CActiveScheduler::Stop();
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parents:
diff changeset
   350
    }						
f63038272f30 Revision: 201001
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parents:
diff changeset
   351
  
f63038272f30 Revision: 201001
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parents:
diff changeset
   352
  TRACE_FUNC_EXIT	
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  }
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// ==========================================================
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// CBTToggle::RunError
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// Inherited from CActive
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// ==========================================================
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//
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TInt CBTToggle::RunError(TInt aError)
10
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    {	  
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    TRACE_INFO((_L("[BTENG][BTTOGGLE] RunError %d"), aError ))	
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    iActiveNotifier = ENoneQuery;
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    CActiveScheduler::Stop();
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    return KErrNone;
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    }