diff -r a2b50a479edf -r 6df133bd92e1 radioengine/utils/api/cradiopubsub.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/radioengine/utils/api/cradiopubsub.h	Fri Jun 04 10:21:36 2010 +0100
@@ -0,0 +1,164 @@
+/*
+* 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 CRADIOPUBSUB_H
+#define CRADIOPUBSUB_H
+
+#include <e32base.h>
+
+#include "radiointernalpskeys.h"
+
+class MRadioControlEventObserver;
+
+/**
+ *  Publish&Subscribe interface of Visual Radio Application.
+ */
+NONSHARABLE_CLASS( CRadioPubSub ) : public CBase
+    {
+public:
+
+    IMPORT_C static CRadioPubSub* NewL();
+
+    IMPORT_C virtual ~CRadioPubSub();
+
+    /**
+     * Publishes active channel number to P&S.
+     *
+     * @param aChannelId The channel ID to publish.
+     */
+    virtual TBool PublishChannel( TInt aChannelId ) const = 0;
+
+    /**
+     * Publishes active frequency to P&S.
+     *
+     * @param aFreq The frequency to publish.
+     */
+    virtual TBool PublishFrequency( TUint32 aFreq ) const = 0;
+
+    /**
+     * Publishes radio power state to P&S.
+     *
+     * @param aPowerOn The radio power state to publish.
+     */
+    virtual TBool PublishPowerState( TBool aPowerOn ) const = 0;
+
+    /**
+     * Publishes current volume level to P&S.
+     *
+     * @param aVol The current volume level to publish.
+     */
+    virtual TBool PublishVolume( TInt aVol ) const = 0;
+
+    /**
+     * Publishes changed channel number to P&S.
+     *
+     * @param aChannelId The channel ID to publish.
+     */
+    virtual TBool PublishChannelDataChanged( TInt aChannelId ) const = 0;
+
+    /**
+     * Publishes the tuning state to P&S.
+     * @param aTuningState The tuning state to publish.
+     */
+    virtual TBool PublishTuningState( TRadioPSTuningState aTuningState ) const = 0;
+
+    /**
+     * Publishes radio mute state to P&S.
+     *
+     * @param aMuted The radio mute state to publish.
+     */
+    virtual TBool PublishRadioMuteState( TBool aMuted ) const = 0;
+
+    /**
+     * Publishes application running state to P&S.
+     *
+     * @param aRunningState The application running state.
+     */
+    virtual TBool PublishApplicationRunningState( TRadioPSApplicationRunningState aRunningState ) const = 0;
+
+    /**
+     * Publishes the headset status to P&S.
+     *
+     * @param aHeadsetStatus The headset's status.
+     */
+    virtual TBool PublishHeadsetStatus( TRadioPSHeadsetStatus aHeadsetStatus ) const = 0;
+
+    /**
+     * Publishes the frequency decimal count to P&S.
+     * @param aDecimalCount The decimal count.
+     */
+    virtual TBool PublishFrequencyDecimalCount( TRadioPSFrequencyDecimalCount aDecimalCount ) const = 0;
+
+    /**
+     * Publishes speaker status. Before state is set for first time it is in
+     * <code>ERadioPSSpeakerUninitialized</code> state.
+     *
+     * @param aLoudspeakerStatus Status of the speaker
+     */
+    virtual TBool PublishLoudspeakerStatus( TRadioPSLoudspeakerStatus aLoudspeakerStatus ) const = 0;
+
+    /**
+     * Publishes Rds Program Service information.
+     *
+     * @param aProgramService Rds Program service descriptor
+     */
+    virtual TBool PublishRdsProgramService( const TDesC& aProgramService ) const = 0;
+
+    /**
+     * Publishes Rds Radio Text information.
+     *
+     * @param aRadioText The Radio Text information to be published.
+     */
+    virtual TBool PublishRdsRadioText( const TDesC& aRadioText ) const = 0;
+
+    /**
+     * Publishes Channel name information.
+     *
+     * @param aName The name to be published.
+     */
+    virtual TBool PublishChannelName( const TDesC& aName ) const = 0;
+
+    /**
+     * Publishes the number of presets in the active preset list.
+     *
+     * @param aCount The number of presets.
+     */
+    virtual TBool PublishActivePreseListCount( TInt aCount ) const = 0;
+
+    /**
+     * Publishes the focus in the active preset list.
+     *
+     * @param aIndex The focus in the active preset list.
+     */
+    virtual TBool PublishActivePreseListFocus( TInt aIndex ) const = 0;
+
+    /**
+     * Publishes the antenna state ( attach/detach ).
+     *
+     * @param aState The current antenna state.
+     */
+    virtual TBool PublishAntennaState( TRadioPSRadioAntennaState aState ) const = 0;
+
+    /**
+     * Sets the UI side control event observer.
+     * @param aControlEventObserver the observer for control events
+     */
+    virtual void SetControlEventObserver( MRadioControlEventObserver* aControlEventObserver ) = 0;
+
+    };
+
+#endif // CRADIOPUBSUB_H