--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmappcomponents/harvester/filehandler/src/mpxfoldermonitor.cpp	Thu Dec 17 08:55:47 2009 +0200
@@ -0,0 +1,257 @@
+/*
+* 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:  Monitors a folder in the file system for file changes
+*
+*/
+
+
+#include <e32base.h>
+#ifdef RD_MULTIPLE_DRIVE
+#include <pathinfo.h>
+#include <driveinfo.h>
+#endif //RD_MULTIPLE_DRIVE
+#include <mpxlog.h>
+#include "mpxfoldermonitor.h"
+#include "mpxfileadditionobserver.h"
+#include "mpxfoldermonitorobserver.h"
+
+// CONSTANTS
+#ifdef RD_MULTIPLE_DRIVE
+_LIT( KMPXMusicPath, "\\Music\\");
+#else
+_LIT( KMPXMusicPath, "\\Music\\");
+_LIT( KMPXDataPath, "\\Data\\");
+#endif //RD_MULTIPLE_DRIVE
+
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+CMPXFolderMonitor::CMPXFolderMonitor( MMPXFolderMonitorObserver& aObserver,
+                                      RFs& aFs ) : CActive( EPriorityNormal ),
+                                                   iObserver( aObserver ),
+                                                   iFs( aFs )
+
+    {
+    CActiveScheduler::Add( this );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Second Phase Constructor
+// ---------------------------------------------------------------------------
+//
+void CMPXFolderMonitor::ConstructL()
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// Two-phased constructor
+// ---------------------------------------------------------------------------
+//
+CMPXFolderMonitor* CMPXFolderMonitor::NewL( MMPXFolderMonitorObserver& aObserver,
+                                            RFs& aFs )
+    {
+    CMPXFolderMonitor* self = new( ELeave ) CMPXFolderMonitor( aObserver, aFs );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CMPXFolderMonitor::~CMPXFolderMonitor()
+    {
+    Cancel();
+    delete iFolderName;
+    }
+
+// ---------------------------------------------------------------------------
+// Starts monitoring a particular drive
+// ---------------------------------------------------------------------------
+//
+void CMPXFolderMonitor::StartL( TDriveNumber aDrive )
+    {
+    MPX_DEBUG1("CMPXFolderMonitor::Start <---");
+
+    // What is the drive name?
+    delete iFolderName;
+    iFolderName = NULL;
+
+#ifdef RD_MULTIPLE_DRIVE
+    switch( aDrive )
+        {
+        case EDriveC:
+            {
+            // Use the default path for the phone memory
+            iFolderName =
+                PathInfo::PhoneMemoryRootPath().AllocL();
+            break;
+            }
+        default:
+            {
+            // Ensure that the drive is available
+            // Get the drive status
+            TUint driveStatus(0);
+            const TInt err = DriveInfo::GetDriveStatus(
+                iFs, aDrive, driveStatus );
+
+            if ( ( err == KErrNone ) &&
+                (driveStatus & DriveInfo::EDriveUserVisible ) )
+                {
+                // Use the music path for the drive
+                iFolderName = HBufC::NewL(KMaxFileName);
+                TPtr folderPtr( iFolderName->Des() );
+                User::LeaveIfError(
+                    PathInfo::GetRootPath( folderPtr, aDrive ) );
+                folderPtr.Append( KMPXMusicPath() );
+                }
+            else
+                {
+                TChar driveChar;
+                User::LeaveIfError(
+                    iFs.DriveToChar( aDrive, driveChar ) );
+                MPX_DEBUG2("CMPXFolderMonitor::Start: Drive %c: not supported!",
+                    driveChar );
+                User::Leave( KErrNotSupported );
+                }
+            break;
+            }
+        }
+    MPX_DEBUG2("CMPXFolderMonitor::Start: Use %S path", iFolderName);
+#else
+    switch( aDrive )
+        {
+        case EDriveC:
+            {
+            TDriveName driveName = TDriveUnit( aDrive ).Name();
+            TInt length = KMPXDataPath().Length() + driveName.Length();
+
+            iFolderName = HBufC::NewL(length);
+
+            TPtr folderPtr( iFolderName->Des() );
+            folderPtr.Append( driveName );
+            folderPtr.Append( KMPXDataPath );
+
+            break;
+            }
+        case EDriveE:
+        // deliberate fall through, same actions for E & F drive
+
+        case EDriveF:
+            {
+
+            TDriveName driveName = TDriveUnit( aDrive ).Name();
+            TInt length = KMPXMusicPath().Length() + driveName.Length();
+
+            iFolderName = HBufC::NewL(length);
+
+            TPtr folderPtr( iFolderName->Des() );
+            folderPtr.Append( driveName );
+            folderPtr.Append( KMPXMusicPath );
+
+            break;
+            }
+
+        default:
+            {
+            User::Leave( KErrNotSupported );
+            }
+        }
+#endif // RD_MULTIPLE_DRIVE
+
+    // Start listening
+    //
+    TNotifyType notType = ENotifyFile;
+    iFs.NotifyChange( notType, iStatus, *iFolderName );
+    SetActive();
+
+    MPX_DEBUG1("CMPXFolderMonitor::Start --->");
+    }
+
+// ---------------------------------------------------------------------------
+// Start monitoring a particular folder
+// ---------------------------------------------------------------------------
+//
+void CMPXFolderMonitor::StartL( const TDesC& aFolder )
+    {
+    MPX_DEBUG1("CMPXFolderMonitor::StartL <---");
+
+    // Copy folder
+    //
+    delete iFolderName;
+    iFolderName = NULL;
+    iFolderName = aFolder.AllocL();
+
+    // Start listening
+    //
+    TNotifyType notType = ENotifyFile;
+    iFs.NotifyChange( notType, iStatus, *iFolderName );
+    SetActive();
+
+    MPX_DEBUG1("CMPXFolderMonitor::StartL --->");
+    }
+
+// ---------------------------------------------------------------------------
+// RunL callback
+// ---------------------------------------------------------------------------
+//
+void CMPXFolderMonitor::RunL()
+    {
+    MPX_DEBUG1("CMPXFolderMonitor::RunL <---");
+
+    // Tell the observer that this folder has changed
+    // It should go and scan it for files?
+    iObserver.HandleDirectoryChangedL( *iFolderName );
+
+    // Listen again
+    TNotifyType notType(ENotifyFile);
+    iFs.NotifyChange( notType, iStatus, *iFolderName );
+    SetActive();
+    MPX_DEBUG1("CMPXFolderMonitor::RunL --->");
+    }
+
+// ---------------------------------------------------------------------------
+// Handle Cancelling
+// ---------------------------------------------------------------------------
+//
+void CMPXFolderMonitor::DoCancel()
+    {
+    MPX_DEBUG1("CMPXFolderMonitor::DoCancel <---");
+
+    // Stop monitoring
+    iFs.NotifyChangeCancel();
+    }
+
+// ----------------------------------------------------------------------------
+// Handles a leave occurring in the request completion event handler RunL()
+// ----------------------------------------------------------------------------
+//
+TInt CMPXFolderMonitor::RunError(TInt aError)
+    {
+    MPX_DEBUG2("CMPXFolderMonitor::RunError(%d)", aError );
+    (void)aError;
+
+    // Listen again
+    TNotifyType notType(ENotifyFile);
+    iFs.NotifyChange( notType, iStatus, *iFolderName );
+    SetActive();
+
+    return KErrNone;
+    }