--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contentpublishingsrv/contentharvester/contentharvesterswiplugin/inc/chswiusbobserver.h	Tue Jan 26 12:11:15 2010 +0200
@@ -0,0 +1,113 @@
+/*
+* Copyright (c) 2007 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:  
+ *
+*/
+
+#ifndef C_CCHSWIUSBOBSERVER_H
+#define C_CCHSWIUSBOBSERVER_H
+
+// INCLUDES
+#include <e32std.h>
+#include <e32base.h>
+#include <f32file.h>
+
+// FORWARD DECLARATION
+class CCHSwiUsbHandler;
+
+/*
+ * Observes RFs for RawDiskWrite events (these are also triggered when 
+ * (un)mounting drive; RFs does not provide better, more specific 
+ * notifications for mount and dismount).
+ * 
+ * After receiving notification, calls 
+ * CCHSwiUsbHandler::PostponedDriveScan() and does not subscribe to
+ * further notifcations. It is up to the plugin to call
+ * CCHSwiUsbObserver::Start() after a successful drive scan.
+ *
+ * @since 3.1
+ */
+class CCHSwiUsbObserver : public CActive
+    {
+public:
+	/**
+	 * Two-phased constructor.
+     * @param aFs File session. 
+	 */
+    static CCHSwiUsbObserver* NewL( CCHSwiUsbHandler* aHandler, RFs& aFs );
+
+	/**
+	 * Destructor.
+	 */
+    virtual ~CCHSwiUsbObserver();
+
+    /**
+     * Active object start.
+     */
+    void Start();
+
+protected:
+
+	/**
+	 * Handle RFs notifications.
+	 */
+    void RunL();
+
+    /**
+     * RunL error handling.
+     * @param aError Error.
+     */
+    TInt RunError( TInt aError );
+
+    /**
+     * Cancels notifications.
+     */
+    void DoCancel();
+
+private:
+    
+    /**
+     * no copy constructor
+     */
+    CCHSwiUsbObserver( const CCHSwiUsbObserver& );
+    
+    /**
+     * no assignment
+     */    
+    CCHSwiUsbObserver& operator=( const CCHSwiUsbObserver& );
+
+    /**
+     * C++ default constructor
+     */
+    CCHSwiUsbObserver( CCHSwiUsbHandler* aHandler, RFs& aFs );
+
+    /**
+     * Symbian default constructor.
+     */
+    void ConstructL();
+    
+private:
+	
+	/**
+	 * File Session.
+	 */
+    RFs iFs;
+    
+    /**
+     * Usb handler to perform postponed checks for mass storage mode.
+     */
+    CCHSwiUsbHandler* iUsbHandler;
+    };
+
+#endif // #ifndef C_CCHSWIUSBOBSERVER_H