--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtengines/videoteleng/Inc/Base/cvtengmediatorservice.h	Mon Nov 23 14:47:47 2009 +0200
@@ -0,0 +1,124 @@
+/*
+* 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:  Handles commands received via Mediator
+*
+*/
+
+
+#ifndef C_VTENGMEDIATORSERVICE_H
+#define C_VTENGMEDIATORSERVICE_H
+
+//  INCLUDES
+#include <e32base.h>
+#include "mvtengoperationobserver.h"
+#include "MVtEngEventObserver.h"
+#include "vtengcommands.h"
+
+// FORWARD DECLARATIONS
+class CMediatorCommandResponder;
+class CVtEngOperation;
+class CVtEngInternalOperation;
+class CVtEngUtility;
+
+// CLASS DECLARATION
+
+/**
+*  Handles shutdown and audio commands from mediator. Deletes itself
+*  after service is completed.
+*
+*  @lib videoteleng
+*  @since 5.0
+*/
+NONSHARABLE_CLASS( CVtEngMediatorService ) : 
+    public CBase, 
+    private MVtEngOperationObserver,
+    private MVtEngEventObserver
+    {
+public: // constructor and destructors
+
+    /**
+     * Starts requested service.
+     * @param aResponder target for mediator response
+     * @param aUtils engine internal utility
+     * @param aCommandId service to start
+     */
+    static void StartLD( 
+        CMediatorCommandResponder& aResponder,
+        CVtEngUtility& aUtils,
+        const TUid aCategory,
+        const TInt aCommandId );
+    
+    ~CVtEngMediatorService();
+    
+public: // from MVtEngOperationObserver
+
+    /**
+    * @see MVtEngOperationObserver
+    */
+    virtual void SetOperation( CVtEngOperation* aActiveOp );
+    
+    /**
+    * @see MVtEngOperationObserver
+    */
+    virtual void CommandCompleteL(
+        const TVtEngCommandId aCommand,
+        const TInt aResult );
+
+public: // from MVtEngEventObserver
+
+    // handles event according to ongoing operation
+    virtual void HandleVtEventL( TInt aEvent );
+
+private: // c++ constructor
+
+    CVtEngMediatorService( 
+        CMediatorCommandResponder& aResponder,
+        CVtEngUtility& aUtils,
+        const TUid aCategory, 
+        const TInt aCommandId );
+    
+private:
+    
+    // prepares and starts requested operation
+    void ConstructAndDoServiceL();
+    
+    // sends response to shutdown command if shutdown already ongoing
+    TBool IsShuttingDown() const;
+    
+    void StartOperationL( const TVtEngCommandId aCommand );
+        
+    // Sends mediator response for shutdown or audio mute/unmute commands.
+    // deletes itself if not waiting internal command response.
+    void SendMediatorResponseD( const TBool aDeleteThis );
+    
+private:
+    CMediatorCommandResponder& iResponder;
+
+    CVtEngInternalOperation* iOperation;
+    
+    CVtEngUtility& iUtils;
+    
+    // mediator Category [KCatVideotelInternalCommands, KCatPhoneToVideotelCommands]
+    TUid iCategory;
+    
+    // mediator command [shutdown, mute mic, unmute mic]
+    TInt iCommandId;
+    
+    // this is used for controlling 
+    TInt iServiceStatus;
+    };
+
+#endif // T_VTENGMEDIATORSERVICE_H
+
+// End of File