--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fmradio/fmradioengine/inc/fmradiocontroleventobserver.h	Tue Feb 02 00:17:10 2010 +0200
@@ -0,0 +1,191 @@
+/*
+* Copyright (c) 2005 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:  Declaration for the control event observer interface
+*
+*/
+
+#ifndef MFMRADIOCONTROLEVENTOBSERVER_H
+#define MFMRADIOCONTROLEVENTOBSERVER_H
+
+#include "fmradioaudioutils.hrh"
+#include "fmradiosystemutils.h"
+
+/**
+ *  MFMRadioControlEventObserver
+ *
+ *  MFMRadioControlEventObserver defines observer interface for FM Radio control events.
+ */
+class MFMRadioControlEventObserver
+    {
+    
+public:
+        
+    /**
+     * Called when "step to channel" request occurs.
+     *
+     * @param aDirection EFMRadioUp for stepping up, EFMRadioDown for stepping down
+     */
+    virtual void StepToChannelL( TFMRadioTuneDirection aDirection ) = 0;
+    
+    /**
+     * Called when "set channel" request occurs.
+     *
+     * @param aChannelId Channel id to set
+     */
+    virtual void SetChannelL( TInt aChannelId ) = 0;
+    
+    /**
+     * Called when "seek" request occurs.
+     *
+     * @param aDirection If EFMRadioUp seeks up, otherwise seeks down
+     */
+    virtual void SeekL( TFMRadioTuneDirection aDirection ) = 0;
+
+    /**
+     * Called when "step to frequency up" request occurs.
+     *
+     * @param aDirection EFMRadioUp for stepping up, EFMRadioDown for stepping down
+     */
+    virtual void StepToFrequencyL( TFMRadioTuneDirection aDirection ) = 0;
+    
+    /**
+     * Called when "set frequency" request occurs.
+     *
+     * @param aFreq Frequency to set
+     */
+    virtual void SetFrequencyL( TUint32 aFreq ) = 0;
+    
+    /**
+     * Called when "adjust volume" request occurs.
+     *
+     * @param aDirection If EFMRadioDecVolume decreases, otherwise increases 
+     * volume
+     */
+    virtual void AdjustVolumeL( TFMRadioVolumeSetDirection aDirection ) = 0;
+    
+    /**
+     * Called when "mute" request occurs.
+     * 
+     * @param aMute if ETrue mutes, else unmutes radio
+     */
+    virtual void MuteL( TBool aMute ) = 0;
+
+    /**
+    * Called when "play" request occurs.
+    *
+    * @param aDownPressed If ETrue, button is down. If EFalse, button is up.
+    */
+    virtual void PlayL( TBool aDownPressed ) = 0;
+
+    /**
+     * Called when "pause" request occurs.
+     *
+     * @param aDownPressed If ETrue, button is down. If EFalse, button is up.
+     */
+    virtual void PauseL(TBool aDownPressed ) = 0;
+
+    /**
+     * Called when "play", "pause" or "pauseplay" request occurs.
+     *
+     * @param aDownPressed If ETrue, button is down. If EFalse, button is up.
+     */
+    virtual void PausePlayL( TBool aDownPressed ) = 0;
+    
+    /**
+     * Called when "stop" request occurs.
+     *
+     * @param aDownPressed If ETrue, button is down. If EFalse, button is up.
+     */
+    virtual void StopL( TBool aDownPressed ) = 0;
+    
+    /**
+     * Called when "forward" request occurs.
+     *
+     * @param aDownPressed If ETrue, button is down. If EFalse, button is up.
+     */
+    virtual void ForwardL( TBool aDownPressed ) = 0;
+    
+    /**
+     * Called when "fast forward" request occurs.
+     *
+     * @param aDownPressed If ETrue, button is down. If EFalse, button is up.
+     */
+    virtual void FastForwardL( TBool aDownPressed ) = 0;
+    
+    /**
+     * Called when "backward" request occurs.
+     *
+     * @param aDownPressed If ETrue, button is down. If EFalse, button is up.
+     */
+    virtual void BackwardL( TBool aDownPressed ) = 0;
+    
+    /**
+     * Called when "rewind" request occurs.
+     *
+     * @param aDownPressed If ETrue, button is down. If EFalse, button is up.
+     */
+    virtual void RewindL( TBool aDownPressed ) = 0;
+    
+    /**
+     * Called when "channel up" request occurs.
+     *
+     * @param aDownPressed If ETrue, button is down. If EFalse, button is up.
+     */
+    virtual void ChannelUpL( TBool aDownPressed ) = 0;
+    
+    /**
+     * Called when "channel down" request occurs.
+     *
+     * @param aDownPressed If ETrue, button is down. If EFalse, button is up.
+     */
+    virtual void ChannelDownL( TBool aDownPressed ) = 0;
+    
+    /**
+     * Called when "volume up" request occurs.
+     *
+     * @param aDownPressed If ETrue, button is down. If EFalse, button is up.
+     */
+    virtual void VolumeUpL( TBool aDownPressed ) = 0;
+    
+    /**
+     * Called when "volume down" request occurs.
+     *
+     * @param aDownPressed If ETrue, button is down. If EFalse, button is up.
+     */
+    virtual void VolumeDownL( TBool aDownPressed ) = 0;
+    
+    /**
+     * Called when "change view" request occurs
+     *
+     * @param aViewId the id of activated view
+     * @param aForceChange if ETrue, view changing is forced and state 
+     * of FM Radio is not checked
+     */
+    virtual void ChangeViewL(TUid aViewId, TBool aForceChange) = 0;
+    
+    /**
+     * Called when output source is changed
+     * @param aDestination the current output source
+     */
+    virtual void SetAudioOutputDestinationL(TFMRadioOutputDestination aDestination) = 0;
+    
+    /**
+     * Called when headset button answer/end call is pressed
+     */
+    virtual void AnswerEndCallL() = 0;
+    };
+
+#endif      // MFMRADIOCONTROLEVENTOBSERVER_H   
+            
+