diff -r a359256acfc6 -r c8a366e56285 webengine/wrtharvester/src/wrtusbhandler.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/wrtharvester/src/wrtusbhandler.cpp	Thu Sep 24 12:53:48 2009 +0300
@@ -0,0 +1,261 @@
+/*
+* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:  Handle notifications of MMC events.
+*
+*
+*
+*/
+
+#include "wrtusbhandler.h"
+#include "wrtharvester.h"
+#include "wrtusbhandler.h"
+
+// CONSTANTS
+
+
+// ============================================================================
+// CWidgetMMCHandler::NewL()
+// two-phase constructor
+//
+// @since 3.1
+// @param aRegistry - Widget registry for callback.
+// @param aFs - file session
+// @return pointer to CWidgetMMCHandler
+// ============================================================================
+//
+CWidgetMMCHandler* CWidgetMMCHandler::NewL(
+    CWrtHarvester* aHarvester,
+    RFs& aFs )
+    {
+    CWidgetMMCHandler* self =
+        new(ELeave) CWidgetMMCHandler( aHarvester , aFs );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ============================================================================
+// CWidgetMMCHandler::CWidgetMMCHandler()
+// C++ default constructor
+//
+// @since 3.1
+// ============================================================================
+//
+CWidgetMMCHandler::CWidgetMMCHandler( CWrtHarvester* aHarvester,
+                                      RFs& aFs )
+    : CActive( CActive::EPriorityUserInput ),
+      iHarvester( aHarvester ),
+      iFs( aFs ),
+      iDriveFlags( 0 )
+    {
+    CActiveScheduler::Add( this );
+    }
+
+// ============================================================================
+// CWidgetMMCHandler::ConstructL()
+// Symbian default constructor
+//
+// @since 3.1
+// ============================================================================
+//
+void CWidgetMMCHandler::ConstructL()
+    {
+    if ( KErrNone != ScanDrives( iDriveFlags ) )
+        {
+        iDriveFlags = 0;
+        }
+        RDebug::Print(_L("iDriveFlags ConstructL() : %x %d"), iDriveFlags,iDriveFlags);
+    }
+
+// ============================================================================
+// CWidgetMMCHandler::~CWidgetMMCHandler()
+// destructor
+//
+// @since 3.1
+// ============================================================================
+CWidgetMMCHandler::~CWidgetMMCHandler()
+    {
+    Cancel();
+
+    }
+
+// ============================================================================
+// CWidgetMMCHandler::Start()
+// Start monitoring.
+//
+// @since 5.0
+// ============================================================================
+void CWidgetMMCHandler::Start()
+    {
+    iFs.NotifyChange( ENotifyDisk, iStatus );
+    SetActive();
+    }
+
+// ============================================================================
+// CWidgetMMCHandler::RunL()
+// Handle notifications of MMC events.
+//
+// @since 3.1
+// ============================================================================
+void CWidgetMMCHandler::RunL()
+    {
+    if ( iStatus == KErrNone )
+      {
+        TInt driveFlags = 0;
+        TInt deltaDriveFlags = 0;
+      
+
+         User::After( 10000000 );
+         
+       if ( KErrNone == ScanDrives( driveFlags ) )
+         {
+            deltaDriveFlags = iDriveFlags ^ driveFlags;
+            
+            iDriveFlags = driveFlags;
+         }
+        
+       if ( deltaDriveFlags )
+          {
+          //Unpluging USB from Mass storage . . . 
+          if(iHarvester->IsInMSMode() == 1)
+            {
+             iHarvester->SetMSMode(0);
+             iHarvester->ClearAllOperations();
+             iHarvester->UpdateL();
+             
+             iFs.NotifyChange( ENotifyDisk, iStatus );
+             SetActive();
+             return;
+            }
+
+          TVolumeInfo volInfo;
+          TInt temp = deltaDriveFlags;
+          TBool massMemAltered = EFalse;
+          TBool mmcAltered = EFalse;
+          for(TInt DriveNo = EDriveA+1 ; DriveNo<=EDriveY; DriveNo++ )
+            {
+                
+            temp =  temp >> 1;
+            if( temp & 01)
+              {
+                switch (DriveNo)
+                  {
+                    case EDriveE :
+                      {
+                      massMemAltered = ETrue;   
+                      break; 
+                      }
+                    case EDriveF:
+                      {
+                           
+                      mmcAltered = ETrue;
+                      break;
+                      }
+                         
+                   }
+              }
+            
+            }
+                     
+       if( !massMemAltered && mmcAltered)    
+         {
+          iHarvester->UpdateL();   
+         }
+       else if( massMemAltered )
+         {
+          iHarvester->SetMSMode(1);  
+          iHarvester->UpdateL(); 
+         }
+
+        }
+      }
+      
+      
+    iFs.NotifyChange( ENotifyDisk, iStatus );
+    SetActive();
+    }
+
+// ============================================================================
+// CWidgetMMCHandler::RunError()
+// Ignore errors from RunL.
+//
+// @since 5.0
+// ============================================================================
+TInt CWidgetMMCHandler::RunError( TInt /* aError */ )
+    {
+
+    return KErrNone; // indicates error was handled
+    }
+
+// ============================================================================
+// CWidgetMMCHandler::DoCancel()
+// Cancel the MMC event handler
+//
+// @since 3.1
+// ============================================================================
+void CWidgetMMCHandler::DoCancel()
+    {
+
+    iFs.NotifyChangeCancel();
+    }
+
+/* Scans drives and records a bit flag for those that exist and are
+ * suitable for installing widgets to.
+ */
+TInt CWidgetMMCHandler::ScanDrives( TInt& aDriveFlags )
+    {
+
+    // List all drives in the system
+    TDriveList driveList;
+    TInt error = iFs.DriveList( driveList );
+    if ( KErrNone == error )
+        {
+        for ( TInt driveNumber = EDriveY;
+              driveNumber >= EDriveA;
+              driveNumber-- )
+            {
+            // The drives that will be filtered out are the same ones that
+            // WidgetInstaller filters out in CWidgetUIHandler::SelectDriveL()
+            if ( (EDriveD == driveNumber)
+                 || !driveList[driveNumber] )
+                {
+                // EDriveD is a temporary drive usually a RAM disk
+                continue;
+                }
+
+            TVolumeInfo volInfo;
+            if ( iFs.Volume( volInfo, driveNumber ) != KErrNone )
+                {
+                // volume is not usable (e.g. no media card inserted)
+                continue;
+                }
+            if ( (volInfo.iDrive.iType == EMediaNotPresent) ||
+                 (volInfo.iDrive.iType == EMediaRom) ||
+                 (volInfo.iDrive.iType == EMediaRemote) ||
+                 (volInfo.iDrive.iDriveAtt & KDriveAttRom) ||
+                 (volInfo.iDrive.iDriveAtt & KDriveAttSubsted) )
+                {
+                // not a suitable widget install drive
+                continue;
+                }
+
+            // found a usable drive
+            aDriveFlags |= (1 << driveNumber);
+          
+            }
+        }
+
+    return error;
+    }