pjs/lib/mac/UserInterface/MButtonEnablerPolicy.h

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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 *
 * The Original Code is mozilla.org code.
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 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation. All
 * Rights Reserved.
 *
 * Contributor(s): 
 */

// ===========================================================================
//	This is a mix-in class which handles the enabling policy for
//	CButtonEnabler.
//	
//	For an object to be enabled by a CButtonEnabler attachment, it should
//	mix-in and implement this interface. Note that a default policy is
//	implemented by CButtonEnabler. This is intended for LControl-derived
//	objects which cannot be changed to mix-in MButtonEnablerPolicy and for
//	which the default policy in CButtonEnabler already Does The Right Thing<6E>.
// ===========================================================================

#ifndef MButtonEnablerPolicy_H
#define MButtonEnablerPolicy_H
#pragma once

// Class declaration

class MButtonEnablerPolicy
{
private:
	
	friend class CButtonEnabler;
	
	virtual void		HandleButtonEnabling() = 0;
};

#endif