/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
 *
 * 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 the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or 
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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#ifndef nsTransferable_h__
#define nsTransferable_h__

#include "nsIFormatConverter.h"
#include "nsITransferable.h"
#include "nsCOMPtr.h"


class nsVoidArray;
class nsString;
class nsDataObj;
class nsVoidArray;


/**
 * XP Transferable wrapper
 */

class nsTransferable : public nsITransferable
{
public:

  nsTransferable();
  virtual ~nsTransferable();

    // nsISupports
  NS_DECL_ISUPPORTS
  
    // nsITransferable
  NS_IMETHOD FlavorsTransferableCanExport(nsISupportsArray **_retval) ;
  NS_IMETHOD GetTransferData(const char *aFlavor, nsISupports **aData, PRUint32 *aDataLen);
  NS_IMETHOD GetAnyTransferData(char **aFlavor, nsISupports **aData, PRUint32 *aDataLen);
  NS_IMETHOD IsLargeDataSet(PRBool *_retval);
  NS_IMETHOD FlavorsTransferableCanImport(nsISupportsArray **_retval) ;
  NS_IMETHOD SetTransferData(const char *aFlavor, nsISupports *aData, PRUint32 aDataLen);
  NS_IMETHOD AddDataFlavor(const char *aDataFlavor) ;
  NS_IMETHOD RemoveDataFlavor(const char *aDataFlavor) ;
  NS_IMETHOD GetConverter(nsIFormatConverter * *aConverter);
  NS_IMETHOD SetConverter(nsIFormatConverter * aConverter);

protected:

    // get flavors w/out converter
  NS_IMETHOD GetTransferDataFlavors(nsISupportsArray** aDataFlavorList);
 
  nsVoidArray * mDataArray;
  nsCOMPtr<nsIFormatConverter> mFormatConv;

};

#endif // nsTransferable_h__