menucontentsrv/srvsrc/mcsmmcobserver.cpp
changeset 0 79c6a41cd166
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/menucontentsrv/srvsrc/mcsmmcobserver.cpp	Thu Dec 17 08:54:17 2009 +0200
@@ -0,0 +1,148 @@
+/*
+* Copyright (c) 2008 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 "mcsmmcobserver.h"
+
+_LIT(KMcsDir,"*:\\private\200113dd\\import");
+
+// ---------------------------------------------------------------------------
+// CCMCsMmcObserver::CCMCsMmcObserver
+// ---------------------------------------------------------------------------
+//
+CMcsMmcObserver::CMcsMmcObserver(MMcsMmcObserver& aCallback) :
+	CActive(EPriorityStandard), // Standard priority
+	iCallback(aCallback)
+	{
+	CActiveScheduler::Add(this); // Add to scheduler
+	}
+
+// ---------------------------------------------------------------------------
+// CCMCsMmcObserver::NewLC
+// ---------------------------------------------------------------------------
+//
+CMcsMmcObserver* CMcsMmcObserver::NewLC(MMcsMmcObserver& aCallback)
+	{
+	CMcsMmcObserver* self = new (ELeave) CMcsMmcObserver(aCallback);
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	return self;
+	}
+
+// ---------------------------------------------------------------------------
+// CCMCsMmcObserver::NewL
+// ---------------------------------------------------------------------------
+//
+CMcsMmcObserver* CMcsMmcObserver::NewL(MMcsMmcObserver& aCallback)
+	{
+	CMcsMmcObserver* self = CMcsMmcObserver::NewLC(aCallback);
+	CleanupStack::Pop(); // self;
+	return self;
+	}
+
+// ---------------------------------------------------------------------------
+// CCMCsMmcObserver::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CMcsMmcObserver::ConstructL()
+	{
+	User::LeaveIfError( iFs.Connect( ) );
+	User::LeaveIfError(iFs.DriveList(iDriveList));
+	iDriveCount = DriveCount(iDriveList);
+	iFs.NotifyChange(ENotifyEntry, iStatus, KMcsDir);
+	SetActive();
+	}
+
+// ---------------------------------------------------------------------------
+// CCMCsMmcObserver::~CCMCsMmcObserver
+// ---------------------------------------------------------------------------
+//
+CMcsMmcObserver::~CMcsMmcObserver()
+	{
+	Cancel(); // Cancel any request, if outstanding
+	iFs.Close();
+	}
+
+// ---------------------------------------------------------------------------
+// CCMCsMmcObserver::DoCancel
+// ---------------------------------------------------------------------------
+//
+void CMcsMmcObserver::DoCancel()
+	{
+	iFs.NotifyChangeCancel();
+	}
+
+// ---------------------------------------------------------------------------
+// CCMCsMmcObserver::RunL
+// ---------------------------------------------------------------------------
+//
+void CMcsMmcObserver::RunL()
+	{
+	if (iStatus == KErrNone)
+		{
+		// Get driver number and compare to last state
+		User::LeaveIfError(iFs.DriveList(iDriveList));
+		TInt driveCountNow = DriveCount(iDriveList);
+		if (iDriveCount < driveCountNow)
+			{
+			iCallback.HandleMmcEventL(MMcsMmcObserver::EMmcInsert);
+			}
+		else if (iDriveCount > driveCountNow)
+			{
+			iCallback.HandleMmcEventL(MMcsMmcObserver::EMmcRemove);
+			}
+		iDriveCount = driveCountNow;
+		}
+	iFs.NotifyChange(ENotifyEntry, iStatus, KMcsDir);
+	SetActive(); // Tell scheduler a request is active
+	}
+
+// ---------------------------------------------------------------------------
+// CCMCsMmcObserver::RunError
+// ---------------------------------------------------------------------------
+//
+TInt CMcsMmcObserver::RunError(TInt /*aError*/)
+	{
+	iFs.NotifyChange(ENotifyEntry, iStatus, KMcsDir);
+	SetActive(); // Tell scheduler a request is active
+	return KErrNone;
+	}
+
+// ---------------------------------------------------------------------------
+// CCMCsMmcObserver::DriveCount
+// ---------------------------------------------------------------------------
+//
+TInt CMcsMmcObserver::DriveCount(TDriveList& aDriveList)
+	{
+	TInt driveCount(0);
+	TDriveInfo driveInfo;
+	
+	// Count drives
+	for (TInt driveNumber = EDriveA; driveNumber <= EDriveZ; driveNumber++)
+		{
+		if (aDriveList[driveNumber])
+			{
+			// Be sure it's not unmounted
+			iFs.Drive(driveInfo, driveNumber);
+			if (driveInfo.iType != EMediaNotPresent)
+				{
+				++driveCount;
+				}
+			}
+		}
+	return driveCount;
+	}