--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/example/clientapi/smf/inc/smfplugins/smfmusic/smflyricsserviceplugin.h	Thu Mar 25 14:44:08 2010 +0530
@@ -0,0 +1,101 @@
+/**
+ * @file	smflyricsserviceplugin.h
+ * @author  Nalina Hariharan, Sasken Communication Technologies Ltd - Initial contribution
+ * @version 1.0
+ *
+ * @section LICENSE
+ *
+ * Copyright (c) 2010 Sasken Communication Technologies Ltd. 
+ * All rights reserved.
+ * This component and the accompanying materials are made available 
+ * under the terms of the "{License}" 
+ * which accompanies  this distribution, and is available 
+ * at the URL "{LicenseUrl}".
+ * 
+ * @section DESCRIPTION
+ *
+ * Interface specification for music track lyrics
+ */
+
+#ifndef SMFLYRICSSERVICEPLUGIN_H_
+#define SMFLYRICSSERVICEPLUGIN_H_
+
+#include <smfproviderbase.h>
+#include <smftrackinfo.h>
+#include <QString>
+#include <smfsubtitle.h>
+#include <smflyrics.h>
+#include <smfsubtitlesearchfilter.h>
+
+/**
+ * Interface specification for music track lyrics
+ *
+ * All of the functionality described here should be implemented by a service
+ * specific plug-in.
+ */
+class SmfLyricsServicePlugin : public QObject
+	{
+	Q_OBJECT
+public:
+	/**
+	 * Constructor with default argument
+	 * @param aParent The parent object
+	 */
+	SmfLyricsServicePlugin( QObject* aParent = 0 );
+	
+	/**
+	 * Destructor
+	 */
+	~SmfLyricsServicePlugin( );
+	
+	/**
+	 * Method to get the provider information
+	 * @return Instance of SmfProviderBase
+	 */
+	virtual SmfProviderBase* getProviderInfo( ) = 0;
+	
+	/**
+	 * Method to get the lyrics
+	 * @param aTrack The track whose lyrics need to be fetched
+	 * @param aRequest [out] The request data to be sent to network
+	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
+	 */
+	virtual SmfPluginError lyrics( const SmfTrackInfo aTrack,
+			SmfPluginRequestData *aRequest ) = 0;
+	
+	/**
+	 * Method to get the subtitle
+	 * @param aTrack The track whose subtitle need to be fetched
+	 * @param aRequest [out] The request data to be sent to network
+	 * @param aFilter The subtitle search filter if any
+	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
+	 */
+	virtual SmfPluginError subtitles( const SmfTrackInfo aTrack,
+			SmfPluginRequestData *aRequest,
+			const SmfSubtitleSearchFilter aFilter = 0 ) = 0;
+	
+	/**
+	 * Method to get the result for a network request.
+	 * @param aTransportResult The result of transport operation
+	 * @param aReply The QNetworkReply instance for the request
+	 * @param aResult [out] An output parameter to the plugin manager.If the 
+	 * return value is SmfSendRequestAgain, QVariant will be of type 
+	 * SmfPluginRequestData. 
+	 * If last operation was lyrics(), aResult will be of type SmfLyrics
+	 * If last operation was subtitles(), aResult will be of type SmfSubtitle
+	 * @param aRetType [out] SmfPluginRetType
+	 * @param aIsLastPage [out] true if this the last page, else false
+	 * @return SmfPluginError 
+	 */
+	virtual SmfPluginError responseAvailable( 
+			const SmfTransportResult aTransportResult, 
+			QNetworkReply *aReply, 
+			QVariant* aResult, 
+			SmfPluginRetType aRetType,
+			bool aIsLastPage) = 0;
+	
+	};
+
+Q_DECLARE_INTERFACE( SmfLyricsServicePlugin, "org.symbian.smf.plugin.music.lyrics/v1.0" );
+
+#endif /* SMFLYRICSSERVICEPLUGIN_H_ */