--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtengines/videoteleng/Inc/Base/cvtengmdtrcommandsender.h	Mon Nov 23 14:47:47 2009 +0200
@@ -0,0 +1,115 @@
+/*
+* Copyright (c) 2008 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:  Sender class for mediator commands
+*
+*/
+
+
+#ifndef C_VTENGMDTRCOMMANDSENDER_H
+#define C_VTENGMDTRCOMMANDSENDER_H
+
+//  INCLUDES
+
+#include <e32cmn.h>
+#include <mediatorcommandinitiator.h>
+#include "MVtEngEventObserver.h"
+
+// FORWARD DECLARATIONS
+class CVtEngUtility;
+class CVtEngOperation;
+class CVtEngMdtrCommandSender;
+class TVtMdtrStateIdle;
+// CLASS DECLARATION
+
+/**
+*  Mediator command sender 
+*
+*  @lib videoteleng
+*  @since 5.0
+*/
+NONSHARABLE_CLASS( CVtEngMdtrCommandSender ) :
+    public CBase, 
+    public MMediatorCommandResponseObserver,
+    public MVtEngEventObserver
+    {
+public: // constructor and destructors
+
+    /**
+    * two-phase constructor
+    */
+    static CVtEngMdtrCommandSender* NewL( CVtEngUtility& aUtils );
+    
+    // Destructor
+    ~CVtEngMdtrCommandSender();
+
+public: // new methods
+
+    /**
+     * Requests telephony to end video call
+     */
+    void EndCall();
+
+    /**
+     * Requests telephony to fallback to voice call 
+     */
+    void VoiceFallback();
+    
+    /**
+     * Requests telephony to make voice call 
+     */
+    void SwitchToVoiceL( CVtEngOperation& aOperation );
+    
+    /**
+     * Notifies telephony about outgoing audio state change
+     */
+    void NotifyOutgoingAudioState( const TBool aMicEnabled );
+    
+    void SetSenderState( TVtMdtrStateIdle& aNewState );
+        
+    
+public: // from MMediatorCommandResponseObserver
+
+        // responses are not handled but required by mediator api
+    virtual void CommandResponseL( TUid aDomain,
+           TUid aCategory, 
+           TInt aCommandId,
+           TInt aStatus, 
+           const TDesC8& aData );
+
+public: // from MVtEngEventObserver
+
+    // handles event accordint to ongoing operation
+    virtual void HandleVtEventL( TInt aEvent );
+                         
+private: // constructors
+
+    CVtEngMdtrCommandSender( CVtEngUtility& aUtils );
+    
+    void ConstructL();
+
+private:
+    // for switch to voice operation, signaled when mediator command is issued.
+    CVtEngOperation* iOperation;
+        
+    // for mediator command reception
+    CMediatorCommandInitiator* iMediatorInitiator;
+    
+    CVtEngUtility& iUtils;
+    
+    TVtMdtrStateIdle* iSenderState;
+    };
+
+#endif // C_VTENGMDTRCOMMANDSENDER_H
+
+// End of File