pjs/lib/mac/UserInterface/MButtonEnablerPolicy.h

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/* -*- 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 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
// ===========================================================================
// 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 Thingª.
// ===========================================================================
#ifndef MButtonEnablerPolicy_H
#define MButtonEnablerPolicy_H
#pragma once
// Class declaration
class MButtonEnablerPolicy
{
private:
friend class CButtonEnabler;
virtual void HandleButtonEnabling() = 0;
};
#endif