--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usbengines/usbwatcher/inc/cusbactivestate.h Thu Dec 17 09:14:30 2009 +0200
@@ -0,0 +1,141 @@
+/*
+* 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: Header file for class CUsbActiveState
+*
+*/
+
+
+#ifndef CUSBACTIVESTATE_H
+#define CUSBACTIVESTATE_H
+
+// INCLUDE FILES
+#include <e32base.h>
+
+// FORWARD DECLARATION
+class CUsbWatcher;
+
+// CLASS DECLARATION
+
+/**
+* Class to handle USB state changes.
+*
+* @lib euser.lib usbman.lib
+* @since Series 60 2.?
+*/
+NONSHARABLE_CLASS( CUsbActiveState ) : public CActive
+ {
+ public: // Constructors and destructor
+
+ /**
+ * Two-phased constructor.
+ * @param aUsbMan Reference to usb manager.
+ * @param aParent Reference to UsbMediaWatcher.
+ * @return Pointer to created object.
+ */
+ static CUsbActiveState* NewL( RUsb& aUsbMan, CUsbWatcher& aOwner );
+
+ /**
+ * Destructor.
+ */
+ virtual ~CUsbActiveState();
+
+ public: // from base class CActive
+
+ /**
+ * From CActive.
+ * This method is called when device state has changed.
+ * New request is issued and device state is given to owner class.
+ *
+ * @since Series 60 2.?
+ */
+ void RunL();
+
+ /**
+ * From CActive
+ * If there is outstanding request pending when Cancel() is called then
+ * this method must cancel request.
+ *
+ * @since Series 60 2.?
+ */
+ void DoCancel();
+
+ public: // new methods
+
+ /**
+ * Get the current device state
+ * @return the current device state
+ *
+ * @since Series 60 3.2
+ */
+ TUsbDeviceState CurrentState();
+
+ /**
+ * Get previous device state
+ * @return previous device state
+ *
+ * @since Series 60 5.1
+ */
+ TUsbDeviceState PreviousState();
+
+
+ private:
+
+ /**
+ * Constructor is prohibited.
+ * @param aUsbMan Reference to Usb manager.
+ * @param aParent Reference to CUsbMediaWatcher.
+ */
+ CUsbActiveState( RUsb& aUsbMan, CUsbWatcher& aOwner );
+
+ /**
+ * C++ default constructor (no implementation provided).
+ */
+ CUsbActiveState();
+
+ /**
+ * By default Symbian 2nd phase constructor is private.
+ */
+ void ConstructL();
+
+ // Prohibit copy constructor when not deriving from CBase.
+ CUsbActiveState( const CUsbActiveState& );
+ // Prohibit assigment operator when not deriving from CBase.
+ CUsbActiveState& operator=( const CUsbActiveState& );
+
+ private: // Data
+ /**
+ * Handle to Usb Manager
+ */
+ RUsb iUsbMan;
+
+ /**
+ * Refernce to owner class
+ */
+ CUsbWatcher& iOwner;
+
+ /**
+ * Current device state
+ */
+ TUsbDeviceState iCurrentState;
+
+ /**
+ * Previous device state
+ */
+ TUsbDeviceState iPreviousState;
+
+ };
+
+#endif // CUSBACTIVESTATE_H
+
+// End of File