/*
* 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;
}