ITextEditorShell.h

//========================================================================================
// 
// $File$
// 
// Owner: Bernd Paradies
// 
// $Author$
// 
// $DateTime$
// 
// $Revision$
// 
// $Change$
// 
// Copyright 1997-2010 Adobe Systems Incorporated. All rights reserved.
// 
// NOTICE: Adobe permits you to use, modify, and distribute this file in accordance 
// with the terms of the Adobe license agreement accompanying it. If you have received
// this file from a source other than Adobe, then your use, modification, or 
// distribution of it requires the prior written permission of Adobe.
// 
//========================================================================================

#ifndef __ITextEditorShell__
#define __ITextEditorShell__

#include "IPMUnknown.h"

//----------------------------------------------------------------------------------------
// Interface ITextEditorShell
//----------------------------------------------------------------------------------------

class ITextEditorShell : public IPMUnknown
{
public:
 // activation
 virtual void Activate() = 0; // called from the EventHandler
 virtual void Deactivate() = 0; // called from the EventHandler

 // transactions
 virtual void FirstAction() = 0;
 virtual void LastAction() = 0; 

 // shell chain
 virtual ITextEditorShell * QueryNextShell() = 0; 
};


//----------------------------------------------------------------------------------------
// usefull macros
//----------------------------------------------------------------------------------------

#define ENSURE_INTERFACE( Class, nIID ) \
 { \
 IPMUnknown *pUnknown = this->QueryInterface( (nIID) ); \
 if( pUnknown ) \
 pUnknown->Release(); \
 else \
 ASSERT_MSG( kFalse, #Class " - missing interface: " #nIID ); \
 }

#endif