diff -r e7aa27f58ae1 -r 578830873419 emailuis/nmhswidget/inc/nmhswidgetemailengine.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/nmhswidget/inc/nmhswidgetemailengine.h	Fri Apr 16 14:51:52 2010 +0300
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2009 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: 
+ *
+ */
+
+#ifndef NMHSWIDGETEMAILENGINE_H_
+#define NMHSWIDGETEMAILENGINE_H_
+
+#include <QObject>
+class NmMessageEnvelope;
+class NmFrameworkAdapter_stub;
+//Maximum amount of envelopes that can be provided to client in getData function
+//This is also the amount of envelopes that is kept in mData all the time
+const int KMaxNumberOfEnvelopesProvided = 2;
+
+//Maximum value for unread count. Counting will stop when this limit is reached
+const int KMaxUnreadCount = 999; 
+
+class NmHsWidgetEmailEngine : public QObject
+    {
+    Q_OBJECT
+public:
+    NmHsWidgetEmailEngine();
+    ~NmHsWidgetEmailEngine();
+
+    int getEnvelopes(QList<NmMessageEnvelope> &list, int maxEnvelopeAmount);
+    int unreadCount();
+    QString accountName();
+        
+public slots:
+    void updateData(); 
+    void updateAccount();
+
+signals:
+    void mailDataChanged();    
+    void accountNameChanged(const QString& accountName);
+    void unreadCountChanged(const int& unreadCount);
+    
+private:
+    int calculateUnreadCount(QList<NmMessageEnvelope*> envelopeList);
+    void resetEnvelopeList();
+    void shrinkEnvelopeList();
+    
+private:
+    QString mAccountName;
+    int mUnreadCount;
+    QList<NmMessageEnvelope*> mEnvelopeList;
+    
+    NmFrameworkAdapter_stub* m_stub_adapter; 
+
+    };
+
+#endif /* NMHSWIDGETEMAILENGINE_H_ */