--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailservices/emailserver/cmailhandlerplugin/src/cmaildriveobserver.cpp	Thu Dec 17 08:39:21 2009 +0200
@@ -0,0 +1,202 @@
+/*
+* Copyright (c) 2000-2009 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: Drive observer implementation.
+*
+*/
+
+// INCLUDE FILES
+#include <pathinfo.h>
+#include <f32file.h>
+#include "cmaildriveobserver.h"
+
+
+// ---------------------------------------------------------
+// CDriveWatcher::NewL
+// Second phase constructor
+// ---------------------------------------------------------
+//
+CDriveObserver* CDriveObserver::NewL( MDriveObserver& aDriveObserver )
+	{
+	CDriveObserver* self = CDriveObserver::NewLC(  aDriveObserver );
+	CleanupStack::Pop(self);
+	return self;
+	}
+	
+// ---------------------------------------------------------
+// CDriveWatcher::NewLC
+// Second phase constructor
+// ---------------------------------------------------------
+//
+CDriveObserver* CDriveObserver::NewLC( MDriveObserver& aDriveObserver )
+	{
+	CDriveObserver* self = new(ELeave) CDriveObserver( aDriveObserver );
+	CleanupStack::PushL( self );
+	self->ConstructL();
+	return self;	
+	}
+	
+// ---------------------------------------------------------
+// CDriveWatcher::~CDriveWatcher
+// Destructor
+// ---------------------------------------------------------
+//
+CDriveObserver::~CDriveObserver()
+	{	
+	
+	delete iDriveLetter;
+	Cancel();
+	
+	iFs.Close();
+	
+	}
+
+// ---------------------------------------------------------
+// CDriveWatcher::CDriveWatcher
+// Default constructor
+// ---------------------------------------------------------
+//
+CDriveObserver::CDriveObserver( MDriveObserver& aDriveObserver )
+	: CActive( CActive::EPriorityStandard ), 
+	iDriveObserver( aDriveObserver )
+	{
+	}
+
+// ---------------------------------------------------------
+// CDriveWatcher::ConstructL
+// default Symbian OS constructor
+// ---------------------------------------------------------
+//
+void CDriveObserver::ConstructL()
+	{	
+	CActiveScheduler::Add(this);
+	User::LeaveIfError( iFs.Connect() );
+	}
+
+
+// ---------------------------------------------------------
+// CDriveWatcher::WaitForChangeL()
+// Request notification for disk change
+// ---------------------------------------------------------
+//	
+void CDriveObserver::WaitForChange()
+	{
+	if ( !IsActive() )
+	    {
+	    iFs.NotifyChange( ENotifyEntry, iStatus, *iDriveLetter );
+	    SetActive();
+	    }
+	}
+	
+// ---------------------------------------------------------
+// CDriveWatcher::MediaPresentL()
+// Call scanning if the memory card exists
+// ---------------------------------------------------------
+//	
+void CDriveObserver::MediaPresentL()
+	{
+	TVolumeInfo volumeInfo;
+	// Returns KErrNone, if drive exists
+	TInt err=iFs.Volume( volumeInfo, iDrive );
+	   
+	if ( err == KErrNone )
+		{
+		iDriveObserver.DriveStateChangedL( ETrue );
+		}
+	else
+	    {
+        iDriveObserver.DriveStateChangedL( EFalse );
+	    }
+	}
+
+// ---------------------------------------------------------
+// Return true if drive is present and false otherwise.
+ // ---------------------------------------------------------
+ //
+TBool CDriveObserver::IsDrivePresent()
+    {    
+    TVolumeInfo volumeInfo;
+    // Returns KErrNone, if drive exists
+    TInt err=iFs.Volume( volumeInfo, iDrive );
+    
+    return ( KErrNone == err );    
+    }
+
+// ---------------------------------------------------------
+// CDriveWatcher::DoCancel()
+// Derived from CActive, cancel request
+// ---------------------------------------------------------
+//
+void CDriveObserver::DoCancel()
+	{
+	iFs.NotifyChangeCancel();
+	}
+
+// ---------------------------------------------------------
+// CDriveWatcher::RunL()
+// Derived from CActive, called when notification received
+// Check if media is present and call new notification request
+// ---------------------------------------------------------
+//	
+void CDriveObserver::RunL()
+	{	
+	if ( iStatus.Int() != KErrCancel )
+	    {	    
+	    WaitForChange();	   
+	    MediaPresentL();
+	    }
+	}
+
+// ---------------------------------------------------------
+// CDriveWatcher::RunError()
+// ---------------------------------------------------------
+//  
+
+TInt CDriveObserver::RunError(TInt /*aError*/)
+    {
+    return KErrNone;
+    }
+
+// ---------------------------------------------------------
+// CDriveObserver::SetDriveL()
+// ---------------------------------------------------------
+//
+void CDriveObserver::SetDriveL( TDriveNumber aDrive )
+    {    
+    if (iDrive == aDrive)
+        {
+        //if drives are the same don't need to do nothing
+        return;
+        }
+    else if ( IsActive() )
+        {
+        //cancel request if drive to monitor changed
+        Cancel();
+        }
+            
+    const TUint KDriveBufSize = 2;
+    
+    iDrive = aDrive;
+    
+    TChar driveAsChar = 0;
+    RFs::DriveToChar( iDrive, driveAsChar );
+    
+    delete iDriveLetter;
+    iDriveLetter = NULL;
+    iDriveLetter = HBufC::NewL( KDriveBufSize );
+    
+    iDriveLetter->Des().Append( driveAsChar );
+    iDriveLetter->Des().Append(':');       
+    }
+//EOF
+