diff -r 000000000000 -r 7f656887cf89 libraries/btrace_parser/src/btrace_focuschange.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libraries/btrace_parser/src/btrace_focuschange.cpp	Wed Jun 23 15:52:26 2010 +0100
@@ -0,0 +1,90 @@
+// btrace_focuschange.cpp
+// 
+// Copyright (c) 2010 Accenture. All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the "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:
+// Accenture - Initial contribution
+//
+
+#include "btrace_parser.h"
+
+EXPORT_C CBtraceFocusChange* CBtraceFocusChange::NewL(CBtraceReader& aReader, CBtraceContext& aContext)
+	{
+	CBtraceFocusChange* self = new(ELeave) CBtraceFocusChange(aReader, aContext);
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+CBtraceFocusChange::CBtraceFocusChange(CBtraceReader& aReader, CBtraceContext& aContext)
+	: iReader(aReader), iContext(aContext)
+	{
+	}
+
+EXPORT_C CBtraceFocusChange::~CBtraceFocusChange()
+	{
+	iNotifs.Close();
+	iReader.RemoveObserver(KAmTraceCategory, *this);
+	}
+
+void CBtraceFocusChange::ConstructL()
+	{
+	iReader.AddObserverL(KAmTraceCategory, *this);
+	}
+
+EXPORT_C void CBtraceFocusChange::NotifyFocusChangedL(const TDesC& aWindowGroupNamePattern, MBtraceFocusChangeObserver& aObserver)
+	{
+	NotifyFocusChangedL(aWindowGroupNamePattern, aObserver, ENotificationOneShot);
+	}
+
+EXPORT_C void CBtraceFocusChange::NotifyFocusChangedL(const TDesC& aWindowGroupNamePattern, MBtraceFocusChangeObserver& aObserver, TBtraceNotificationPersistence aPersistence)
+	{
+	iNotifs.AppendL(TFocusChangeNotif(aWindowGroupNamePattern, aObserver, aPersistence));
+	}
+
+EXPORT_C void CBtraceFocusChange::CancelNotifyFocusChanged(MBtraceFocusChangeObserver& aObserver)
+	{
+	for (TInt i = (iNotifs.Count() - 1); i >= 0; --i)
+		{
+		if (&iNotifs[i].iObserver == &aObserver)
+			{
+			iNotifs.Remove(i);
+			}
+		}
+	}
+
+void CBtraceFocusChange::HandleBtraceFrameL(const TBtraceFrame& aFrame)
+	{
+	if (aFrame.iSubCategory == EAmTraceSubCategoryWindowGroupFocus)
+		{
+		const TInt32* data = (const TInt32*)aFrame.iData.Ptr();
+		TInt wservWindowGroupId = *data;
+		const TBtraceWindowGroupId* windowGroupId = iContext.FindWindowGroup(wservWindowGroupId);
+		__ASSERT_ALWAYS(windowGroupId, Panic(EBtpPanicWservWindowGroupIdNotFound));
+		const TDesC& windowGroupName = iContext.WindowGroupName(*windowGroupId);
+		
+		for (TInt i = (iNotifs.Count() - 1); i >= 0; --i)
+			{
+			const TFocusChangeNotif& thisNotif = iNotifs[i];
+			if (windowGroupName.MatchF(thisNotif.iWindowGroupNamePattern) != KErrNotFound)
+				{
+				MBtraceFocusChangeObserver& observer = thisNotif.iObserver;
+				if (thisNotif.iPersistence == ENotificationOneShot)
+					{
+					iNotifs.Remove(i);
+					}
+				observer.HandleFocusChangedL(aFrame.iTickCount, *windowGroupId);
+				}
+			}
+		}
+	}
+
+CBtraceFocusChange::TFocusChangeNotif::TFocusChangeNotif(const TDesC& aWindowGroupNamePattern, MBtraceFocusChangeObserver& aObserver, TBtraceNotificationPersistence aPersistence)
+	: iWindowGroupNamePattern(aWindowGroupNamePattern), iObserver(aObserver), iPersistence(aPersistence)
+	{
+	}