/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * 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
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * The Original Code is mozilla.org code.
 *
 * 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): 
 */

// ==============================
// ! Scriptability related code !
// ==============================
//
// nsScriptablePeer - xpconnect scriptable peer
//

#ifndef __nsScriptablePeer_h__
#define __nsScriptablePeer_h__

#include "nsI4xScriptablePlugin.h"
#include "nsIClassInfo.h"

class CPlugin;

// We must implement nsIClassInfo because it signals the
// Mozilla Security Manager to allow calls from JavaScript.

class nsClassInfoMixin : public nsIClassInfo
{
  // These flags are used by the DOM and security systems to signal that 
  // JavaScript callers are allowed to call this object's scritable methods.
  NS_IMETHOD GetFlags(PRUint32 *aFlags)
    {*aFlags = nsIClassInfo::PLUGIN_OBJECT | nsIClassInfo::DOM_OBJECT;
     return NS_OK;}
  NS_IMETHOD GetImplementationLanguage(PRUint32 *aImplementationLanguage)
    {*aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
     return NS_OK;}
  // The rest of the methods can safely return error codes...
  NS_IMETHOD GetInterfaces(PRUint32 *count, nsIID * **array)
    {return NS_ERROR_NOT_IMPLEMENTED;}
  NS_IMETHOD GetHelperForLanguage(PRUint32 language, nsISupports **_retval)
    {return NS_ERROR_NOT_IMPLEMENTED;}
  NS_IMETHOD GetContractID(char * *aContractID)
    {return NS_ERROR_NOT_IMPLEMENTED;}
  NS_IMETHOD GetClassDescription(char * *aClassDescription)
    {return NS_ERROR_NOT_IMPLEMENTED;}
  NS_IMETHOD GetClassID(nsCID * *aClassID)
    {return NS_ERROR_NOT_IMPLEMENTED;}
  NS_IMETHOD GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
    {return NS_ERROR_NOT_IMPLEMENTED;}
};

class nsScriptablePeer : public nsI4xScriptablePlugin,
                         public nsClassInfoMixin
{
public:
  nsScriptablePeer(CPlugin* plugin);
  ~nsScriptablePeer();

public:
  // methods from nsISupports
  NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr); 
  NS_IMETHOD_(nsrefcnt) AddRef(); 
  NS_IMETHOD_(nsrefcnt) Release(); 

protected: 
  nsrefcnt mRefCnt;  

public:
  // native methods callable from JavaScript
  NS_IMETHOD ShowVersion(); 
  NS_IMETHOD Clear();

protected:
  CPlugin* mPlugin;
};

#endif