--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbengines/usbwatcher/src/cusbactivestate.cpp	Fri Jun 04 10:27:39 2010 +0100
@@ -0,0 +1,152 @@
+/*
+* Copyright (c) 2002-2009 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:  This implements CUsbActiveState class.
+*
+*/
+
+
+// INCLUDE FILES
+#include <usbman.h>
+#include "debug.h"
+#include "cusbactivestate.h"
+#include "cusbwatcher.h"
+
+// CONSTANTS
+const TUint KUsbAllStates = 0xFFFFFFFF;
+
+// ============================ MEMBER FUNCTIONS ==============================
+
+// ----------------------------------------------------------------------------
+// C++ default constructor can NOT contain any code, that might leave.
+// ----------------------------------------------------------------------------
+//
+CUsbActiveState::CUsbActiveState( RUsb& aUsbMan, CUsbWatcher& aOwner )
+    : CActive( EPriorityStandard )
+    , iUsbMan( aUsbMan )
+    , iOwner( aOwner )
+    , iPreviousState( EUsbDeviceStateUndefined )
+    {
+    LOG_FUNC
+
+    CActiveScheduler::Add( this );
+    }
+
+// ----------------------------------------------------------------------------
+// Symbian 2nd phase constructor can leave.
+// ----------------------------------------------------------------------------
+//
+void CUsbActiveState::ConstructL()
+    {
+    LOG_FUNC
+
+    LEAVEIFERROR( iUsbMan.GetDeviceState( iCurrentState ) );
+    LOG1( "Intial UsbDeviceState = %d" , iCurrentState );
+        
+    // start USB if cable is pluged-in at bootup
+    if( EUsbDeviceStateUndefined != iCurrentState )
+        {
+        iOwner.StateChangeNotify( iPreviousState, iCurrentState );
+        iPreviousState = iCurrentState;
+        }
+    iUsbMan.DeviceStateNotification( KUsbAllStates, iCurrentState, iStatus );
+    SetActive();
+    }
+
+// ----------------------------------------------------------------------------
+// Two-phased constructor.
+// ----------------------------------------------------------------------------
+//
+CUsbActiveState* CUsbActiveState::NewL( RUsb& aUsbMan, CUsbWatcher& aOwner )
+    {
+    LOG_FUNC
+
+    CUsbActiveState* self = new ( ELeave ) CUsbActiveState( aUsbMan, aOwner );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop(); // pop self
+    return self;
+    }
+
+// Destructor
+CUsbActiveState::~CUsbActiveState()
+    {
+    LOG_FUNC
+
+    Cancel();
+    }
+
+// ----------------------------------------------------------------------------
+// This function is called when device state is changed.
+// ----------------------------------------------------------------------------
+//
+void CUsbActiveState::RunL()
+    {
+    LOG_FUNC
+
+    LEAVEIFERROR( iStatus.Int() ); // Close process if error happens here
+
+    TUsbDeviceState newState = iCurrentState;
+    iUsbMan.DeviceStateNotification( KUsbAllStates, iCurrentState,
+            iStatus );
+    SetActive();
+    
+    // Notify only if there is a change
+    if ( newState != iPreviousState )
+        {
+        LOG2( "USB device state changed: %d ==> %d", iPreviousState,
+            newState );
+        iOwner.StateChangeNotify( iPreviousState, newState );
+        iPreviousState = newState;
+        }
+     else
+        {
+        LOG2("USB device change ignored: %d -> %d", iPreviousState,
+            newState ); 
+        }
+    }
+ 
+// ----------------------------------------------------------------------------
+// Standard active object cancellation function.
+// ----------------------------------------------------------------------------
+//
+void CUsbActiveState::DoCancel()
+    {
+    LOG_FUNC
+
+    iUsbMan.DeviceStateNotificationCancel();
+    }
+
+// ----------------------------------------------------------------------------
+// Get current device state.
+// ----------------------------------------------------------------------------
+//
+TUsbDeviceState CUsbActiveState::CurrentState()
+    {
+    LOG_FUNC
+
+    return iCurrentState;
+    }
+
+// ----------------------------------------------------------------------------
+// Get previous device state.
+// ----------------------------------------------------------------------------
+//
+TUsbDeviceState CUsbActiveState::PreviousState()
+    {
+    LOG_FUNC
+
+    return iPreviousState;
+    }
+	
+// End of file