--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commonappservices/backuprestorenotification/src/CBackupRestoreNotification.cpp	Tue Feb 02 10:12:00 2010 +0200
@@ -0,0 +1,202 @@
+// Copyright (c) 2004-2009 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:
+//
+
+#include "CBackupRestoreNotification.h"
+
+
+/** Default constructor. 
+ *	@param aCallback reference to observer class object.
+ */
+CBackupRestoreNotification::CBackupRestoreNotification(MBackupRestoreNotificationObserver& aCallback)
+:	
+	CActive(CActive::EPriorityStandard), 
+	iObserver(aCallback)
+	{
+	
+	CActiveScheduler::Add(this);
+	}
+
+
+/** Destructor.
+ */
+EXPORT_C CBackupRestoreNotification::~CBackupRestoreNotification()
+	{
+	Cancel();
+	iBackupNotification.Close();
+	}
+
+/** 
+ *	A class wishing to be notified of a Backup/Restore shoud be derived from 
+ *	MBackupRestoreNotificationObserver and pass a self reference.
+ *	@param	aFilename	full filename of the file which needs monitoring.
+ *	@param aCallback should usually be a pointer to the class calling this function.
+ */
+EXPORT_C CBackupRestoreNotification* CBackupRestoreNotification::NewL(const TDesC& aFilename, 
+												MBackupRestoreNotificationObserver& aCallback)
+	{
+	CBackupRestoreNotification* self = new(ELeave) CBackupRestoreNotification(aCallback);
+	CleanupStack::PushL(self);
+	self->ConstructL(aFilename);
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+/** 
+ *	Indicates if a Backup operation is currently taking place.
+ *	@return	ETrue if operation in progress else EFalse.
+ */
+EXPORT_C TBool CBackupRestoreNotification::BackupInProgress() const
+	{
+	return (iCurrentState & (conn::EBURBackupPartial | conn::EBURBackupFull));
+	}
+
+/** 
+ *	Indicates if a Restore operation is currently taking place.
+ *	@return	ETrue if operation in progress else EFalse.
+ */
+EXPORT_C TBool CBackupRestoreNotification::RestoreInProgress() const
+	{
+	return (iCurrentState & (conn::EBURRestorePartial | conn::EBURRestoreFull));
+	}
+
+
+
+/** 
+ *	Initial registration with Publish&Subscribe for KUidBackupRestoreKey.
+ *	@param full filename of the file being backed and which needs monitoring. 
+ */
+void CBackupRestoreNotification::ConstructL(const TDesC& /*aFilename*/)
+	{
+	// Initial subscribe to the Backup and Restore Flag.
+	// The first ID indicates the type of flag being subscribed to.
+	// The second ID is the actual Backup/Restore flag.
+	iBackupNotification.Attach(KUidSystemCategory, conn::KUidBackupRestoreKey);
+	iBackupNotification.Subscribe(iStatus);
+	
+	// Check to see if a Backup/Restore is currently underway.
+	TInt newState=0;
+	if (iBackupNotification.Get(newState)!=KErrNotFound)
+		{
+		ProcessInitialStateL(newState);
+		}
+
+	SetActive();
+	}
+
+
+/** 
+ *	Have been notifed of a change in the backup/restore falg value.
+ *	Re-register for changes to the backup flag. Then evaluate which observer 
+ *	function need to be called.
+ *	@see CActive
+ */
+void CBackupRestoreNotification::RunL()
+	{
+	// Resubscribe before dealing with the current notification.
+	iBackupNotification.Subscribe(iStatus);
+	SetActive();
+
+	// Flag updated. What to do..
+	TInt newState=0;
+	if (iBackupNotification.Get(newState)!=KErrNotFound)
+		{
+		ReceivedNotificationL(newState);
+		}
+	}
+
+
+TInt CBackupRestoreNotification::RunError(TInt /* aError */)
+	{ // recover after handler for notification left
+	return (KErrNone);
+	}
+
+
+/**
+ * @see CActive
+ */
+void CBackupRestoreNotification::DoCancel()
+	{
+	iBackupNotification.Cancel();
+	}
+
+
+/**
+ * Determines what operation is starting or has completed
+ * and calls the relevant observer function.
+ * @param aNewState	flags indicating what the new backup/restore state is:
+ *	ENoBackup or EBackupBase or EBackupIncremetal. Only interesed in BaseBackup.
+ *  EBUR (Unset, Normal, BackupFull, BackupPartial, RestoreFull, RestorePartial)
+ *
+ *	1. No backup/restore is taking place = EBURNormal | ENoBackup		
+ *	2. Backup operation starting = (EBURBackupFull || EBURBackupPartial) && EBackupBase
+ *  3. Restore operation starting = (EBURRestoreFull || EBURRestorePartial) && EBackupBase
+ *								
+ */
+void CBackupRestoreNotification::ReceivedNotificationL(TInt aNewState)
+	{
+	// We are starting a a new operation...
+	// Was there a previous Restore which failed to complete ?
+	if (!(aNewState & (conn::EBURNormal | conn::EBURUnset)) && RestoreInProgress())
+		{
+		iCurrentState=aNewState;
+		iObserver.RestoreCompletedL(KErrAbort);		
+		}
+
+	// A Backup or Restore taking place.
+	if (aNewState & (conn::EBURBackupPartial | conn::EBURBackupFull) )
+		{
+		// Backup is taking place (either partial or full)
+		iCurrentState=aNewState;
+		iObserver.BackupBeginningL();
+		}
+	else if (aNewState & (conn::EBURRestorePartial | conn::EBURRestoreFull)) 
+		{
+		// Restore is taking place (either partial or full)
+		iCurrentState=aNewState;
+		iObserver.RestoreBeginningL();
+		}
+	else if (aNewState & (conn::EBURNormal | conn::EBURUnset))
+		{		
+		// The state has changed to no backup/restore
+		// Decide which operation has just completed.
+		if (BackupInProgress())
+			{
+			iCurrentState=aNewState;
+			iObserver.BackupCompletedL();
+			}
+		else if (RestoreInProgress())
+			{
+			iCurrentState=aNewState;
+			iObserver.RestoreCompletedL(KErrNone);
+			}		
+		}
+	}
+
+void CBackupRestoreNotification::ProcessInitialStateL(TInt aNewState)
+	{
+	// A Backup or Restore is taking place.
+	if (aNewState & (conn::EBURBackupPartial | conn::EBURBackupFull) )
+		{
+		// Backup is taking place (either partial or full) 
+		iObserver.BackupBeginningL();
+		}
+	else if (aNewState & (conn::EBURRestorePartial | conn::EBURRestoreFull)) 
+		{
+		// Restore is taking place (either partial or full)
+		iObserver.RestoreBeginningL();
+		}	
+	iCurrentState=aNewState;
+	}
+