diff -r 1a2a00e78665 -r f62f87b200ec homescreensrv_plat/servicemodel_api/service.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/homescreensrv_plat/servicemodel_api/service.h	Fri Mar 19 09:35:23 2010 +0200
@@ -0,0 +1,101 @@
+/*
+* 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 SERVICE_H
+#define SERVICE_H
+
+#include "servicemodel_global.h"
+#include <QObject>
+#include <QVariant>
+
+class ServiceParameters;
+
+/**
+ * @ingroup group_hsservicemodel group_service_api_candidates
+ * @brief Base class for all the services. 
+ */
+class HSSERVICEMODEL_EXPORT HsService : public QObject
+{
+	Q_OBJECT
+	
+public:
+
+    /**
+    * Constructor
+    * @param aParent 
+    */
+    HsService( QObject* aParent = 0 ) : QObject( aParent ) {}
+	  
+    /**
+     * destructor
+     * @since S60 ?S60_version.
+     */
+    virtual ~HsService() {}
+    
+public:
+
+    /**
+     * Execute service command
+     * @param aCommand service command 
+     * @param aInParameters parameters. 
+     * For example messaging service
+     * needs to have at least the following pairs to send short message:
+     * 'MessageType' - 'SMS'
+     * 'To' - 'phone number here'
+     * 'BodyText' - 'this is text to be sent'
+     * So aInParameters should include QMap:
+     * @code
+     *   QMap<QString, QVariant> parameters;
+     *   parameters["MessageType"]=QVariant(QString("SMS"));
+     *   parameters["To"]=QVariant(QString("555555"));
+     *   parameters["BodyText"]=QVariant(QString("this is bodytext"));
+     *   QVariant inParameters;
+     *   inParameters.setValue(parameters);
+     * @endcode
+     */
+    virtual void executeCommand(const QByteArray &aCommand, const QVariant &aInParameters) = 0;
+    
+    /**
+    * Cancels ALL then pending commands.
+    */
+    virtual void cancelCommands() = 0;
+    
+    /**
+     * Get data after dataReceived signal has been received.
+     * 
+     * @param aData data buffer to be filled
+     * TODO: error?
+     */
+    virtual void getData(QVariant &aData) = 0;
+        
+signals:
+
+    /**
+     * Signal emitted when data is received, client can then make query for the received data using getData function.
+     */
+    void dataReceived();
+    
+    /**
+     * Signal emitted when data is received
+     * @param aData (QMap<QString, QVariant>) data received from the service 
+     */
+    void dataReceived(const QVariant &aData);
+    	    
+};
+
+#endif