/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * the License. You may obtain a copy of the License at
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 *
 * 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.
 *
 * Contributor(s):
 *
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 * 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"),
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#ifndef nsClipboard_h__
#define nsClipboard_h__

#include "nsBaseClipboard.h"
#include "nsIURI.h"
#include <windows.h>

class nsITransferable;
class nsIClipboardOwner;
class nsIWidget;
class nsILocalFile;
struct IDataObject;

/**
 * Native Win32 Clipboard wrapper
 */

class nsClipboard : public nsBaseClipboard
{

public:
  nsClipboard();
  virtual ~nsClipboard();

  // nsIClipboard
  NS_IMETHOD HasDataMatchingFlavors(const char** aFlavorList, PRUint32 aLength,
                                    PRInt32 aWhichClipboard, bool *_retval); 

  // Internal Native Routines
  static nsresult CreateNativeDataObject(nsITransferable * aTransferable, 
                                         IDataObject ** aDataObj,
                                         nsIURI       * uri);
  static nsresult SetupNativeDataObject(nsITransferable * aTransferable, 
                                        IDataObject * aDataObj);
  static nsresult GetDataFromDataObject(IDataObject     * aDataObject,
                                        UINT              anIndex,
                                        nsIWidget       * aWindow,
                                        nsITransferable * aTransferable);
  static nsresult GetNativeDataOffClipboard(nsIWidget * aWindow, UINT aIndex, UINT aFormat, void ** aData, PRUint32 * aLen);
  static nsresult GetNativeDataOffClipboard(IDataObject * aDataObject, UINT aIndex, UINT aFormat, const char * aMIMEImageFormat, void ** aData, PRUint32 * aLen);
  static nsresult GetGlobalData(HGLOBAL aHGBL, void ** aData, PRUint32 * aLen);
  static UINT     GetFormat(const char* aMimeStr);

  static UINT     CF_HTML;
  
protected:
  NS_IMETHOD SetNativeClipboardData ( PRInt32 aWhichClipboard );
  NS_IMETHOD GetNativeClipboardData ( nsITransferable * aTransferable, PRInt32 aWhichClipboard );
  
  static bool IsInternetShortcut ( const nsAString& inFileName ) ;
  static bool FindURLFromLocalFile ( IDataObject* inDataObject, UINT inIndex, void** outData, PRUint32* outDataLen ) ;
  static bool FindURLFromNativeURL ( IDataObject* inDataObject, UINT inIndex, void** outData, PRUint32* outDataLen ) ;
  static bool FindUnicodeFromPlainText ( IDataObject* inDataObject, UINT inIndex, void** outData, PRUint32* outDataLen ) ;
  static bool FindPlatformHTML ( IDataObject* inDataObject, UINT inIndex, void** outData, PRUint32* outDataLen );
  static void ResolveShortcut ( nsILocalFile* inFileName, nsACString& outURL ) ;

  nsIWidget         * mWindow;

};

#define SET_FORMATETC(fe, cf, td, asp, li, med)   \
   {\
   (fe).cfFormat=cf;\
   (fe).ptd=td;\
   (fe).dwAspect=asp;\
   (fe).lindex=li;\
   (fe).tymed=med;\
   }


#endif // nsClipboard_h__

