--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/callcontinuity/vcchotrigger/inc/vccwlansignallevelhandler.h	Wed Sep 01 12:29:57 2010 +0100
@@ -0,0 +1,215 @@
+/*
+* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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:   Definition of the WLAN signal level handler
+*
+*/
+
+
+
+#ifndef VCCWLANSIGNALLEVELHANDLER_H
+#define VCCWLANSIGNALLEVELHANDLER_H
+
+#include <e32base.h>
+#include <wlanmgmtcommon.h>
+
+#include "vccsignallevelhandler.h"
+#include "vccsignallevelobserver.h"
+
+class CWlanMgmtClient;
+class CVccEngPsProperty;
+
+/**
+ *  WLAN signal level observer
+ *
+ *
+ *  @code
+ *
+ *  TSignalLevelParams params = { 8e6, 8e6, 80, 40 };
+ *
+ *  CMyClass::ConstructL()
+ *      {
+ *      iSignalLevelHandler = CVccWlanSignalLevelHandler::NewL( *this, params );
+ *      iSignalLevelHandler->StartL();
+ *      }
+ *
+ *  CMyClass::StopMonitoring()
+ *      {
+ *      iSignalLevelHandler->Stop();
+ *      }
+ *
+ *  CMyClass::SetNewParametersAndStartL()
+ *      {
+ *      TSignalLevelParams params = { 8e6, 10e6, 80, 20 };
+ *
+ *      iSignalLevelHandler->SetParams( params );
+ *
+ *      // Start using new parameters
+ *      iSignalLevelHandler->StartL();
+ *      }
+ *
+ *  CMyClass::~CMyClass()
+ *      {
+ *      delete iSignalLevelHandler;
+ *      }
+ *
+ *
+ *  CMyClass::WlanSignalChanged(
+ *      TInt32 aRss,
+ *      TSignalRssClass aRssClass )
+ *      {
+ *      // Signal level changed. Must do something
+ *      if ( aRssClass == ESignalClassWeak )
+ *          {
+ *          // Do handover if the signal is very weak
+ *          if ( aRss > EReallyBadSignalLevel )
+ *              {
+ *              }
+ *          }
+ *      }
+ *
+ *
+ *
+ *  @endcode
+ *
+ *  @lib vcchotrigger.dll
+ *  @since S60 v3.2
+ */
+class CVccWlanSignalLevelHandler : public CVccSignalLevelHandler,
+                                   public MWlanMgmtNotifications
+    {
+public:
+
+
+    /**
+     * Two-phased constructor.
+     * @param aObserver Observer which will be notified upon signal changes.
+     * @param aParams Parameters for the timer and signal levels.
+     */
+    static CVccWlanSignalLevelHandler * NewL(
+            MVccSignalLevelObserver& aObserver,
+            const TSignalLevelParams& aParams, CVccEngPsProperty& aPsProperty );
+    /**
+     * Two-phased constructor.
+     * @param aObserver Observer which will be notified upon signal changes.
+     * @param aParams Parameters for the timer and signal levels.
+     */
+    static CVccWlanSignalLevelHandler* NewLC(
+            MVccSignalLevelObserver& aObserver,
+            const TSignalLevelParams& aParams, CVccEngPsProperty& aPsProperty );
+
+    /**
+    * Destructor.
+    */
+    virtual ~CVccWlanSignalLevelHandler();
+    
+    /**
+    *  for telling WLAN Signal Level Handler that manual HO is done or not done
+    */
+    void SetManualHoDone( TBool aValue );
+
+private:
+
+    /**
+     * Symbian second-phase constructor
+     *
+     * @since S60 3.2
+     */
+    void ConstructL();
+
+    /**
+     * C++ constructor
+     *
+     * @since S60 3.2
+     * @param aObserver Observer which will be notified upon signal changes.
+     * @param aParams Parameters for the timer and signal levels.
+     */
+    CVccWlanSignalLevelHandler( MVccSignalLevelObserver& aObserver,
+                               const TSignalLevelParams& aParams, CVccEngPsProperty& aPsProperty);
+
+// from base class CVccSignalLevelHandler
+
+    /**
+     * @see CVccSignalLevelHandler::GetStrength()
+     */
+    void GetStrength();
+
+    /**
+     * @see CVccSignalLevelHandler::EnableNotificationsL()
+     */
+    void EnableNotificationsL();
+
+    /**
+     * @see CVccSignalLevelHandler::DisableNotifications()
+     */
+    void DisableNotifications();
+
+    /**
+     * @see CVccSignalLevelHandler::CancelGetStrength()
+     */
+    void CancelGetStrength();
+
+    /**
+     * @see CVccSignalLevelHandler::NotifyChanges()
+     */
+    void NotifyChanges( TInt32 aSignalStrength,
+                 MVccSignalLevelObserver::TSignalStrengthClass aClass );
+
+
+// from base class MWlanMgmtNotifications
+
+    /**
+     * @see MWlanMgmtNotifications::RssChanged()
+     */
+    void RssChanged( TWlanRssClass aRssClass, TUint aRss );
+
+    /**
+     * @see MWlanMgmtNotifications::BssidChanged()
+     */
+    void BssidChanged( TWlanBssid& aNewBSSID );
+
+    /**
+     * @see MWlanMgmtNotifications::OldNetworksLost()
+     */
+    void OldNetworksLost();
+    
+    /**
+     * Overriding this because WLAN signal level handler needs to observe the signal level
+     * more frequently than GSM Signal Level Handler
+     */
+    void RunL();
+    
+    //overriding this because specific actions needed for cancellation for WLAN
+    void DoCancel(); 
+    
+private: // data
+
+    /**
+     * WLAN management client.
+     * Own.
+     */
+    CWlanMgmtClient* iWlanMgmt;
+    
+    /**
+     * for informing the states
+     */
+    CVccEngPsProperty& iVccPsp;
+    
+    /**
+     * indicates is manual HO done or not
+     */
+    TBool iManualHoDone;
+    };
+
+#endif // VCCWLANSIGNALLEVELHANDLER_H
+