/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla 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/MPL/
 *
 * 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 Communicator.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corp.
 * Portions created by the Initial Developer are Copyright (C) 1999
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Mike Pinkerton
 *
 * 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
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */


#include "nsISupports.idl"
#include "nsISupportsArray.idl"
#include "nsITransferable.idl"
#include "nsIClipboardOwner.idl"


[scriptable, uuid(8B5314BA-DB01-11d2-96CE-0060B0FB9956)]
interface nsIClipboard : nsISupports
{
    const long kSelectionClipboard = 0;
    const long kGlobalClipboard = 1;
    
   /**
    * Given a transferable, set the data on the native clipboard
    *
    * @param  aTransferable The transferable
    * @param  anOwner The owner of the transferable
    * @param  aWhichClipboard Specifies the clipboard to which this operation applies.
    * @result NS_Ok if no errors
    */
  
    void setData ( in nsITransferable aTransferable, in nsIClipboardOwner anOwner, 
                    in long aWhichClipboard ) ;

   /**
    * Given a transferable, get the clipboard data.
    *
    * @param  aTransferable The transferable
    * @param  aWhichClipboard Specifies the clipboard to which this operation applies.
    * @result NS_Ok if no errors
    */
  
    void getData ( in nsITransferable aTransferable, in long aWhichClipboard ) ;

   /**
    * This empties the clipboard and notifies the clipboard owner.
    * This empties the "logical" clipboard. It does not clear the native clipboard.
    *
    * @param  aWhichClipboard Specifies the clipboard to which this operation applies.
    * @result NS_OK if successful.
    */
  
    void emptyClipboard ( in long aWhichClipboard ) ;

   /**
    * This provides a way to give correct UI feedback about, for instance, a paste 
    * should be allowed. It does _NOT_ actually retreive the data and should be a very
    * inexpensive call. All it does is check if there is data on the clipboard matching
    * any of the flavors in the given list.
    *
    * @aFlavorList - nsISupportsCString's in a nsISupportsArray (for JavaScript).
    * @param  aWhichClipboard Specifies the clipboard to which this operation applies.
    * @outResult - if data is present matching one of 
    * @result NS_OK if successful.
    */
    boolean hasDataMatchingFlavors ( in nsISupportsArray aFlavorList, in long aWhichClipboard )  ;

   /**
    * Allows clients to determine if the implementation supports the concept of a 
    * separate clipboard for selection.
    * 
    * @outResult - true if 
    * @result NS_OK if successful.
    */
    boolean supportsSelectionClipboard ( ) ;
};

// Interface to a native image format such as the format stored on the clipboard
[scriptable, uuid(DB21EB6C-AEBB-4d16-94EC-BCD8BBF513AE)]
interface nsIClipboardImage : nsISupports
{
  // the idl compiler complains if these two methods are scriptable. need to figure out why
  [noscript] void setNativeImage(in voidPtr aNativeImageData);

  // caller must later call releaseNativeImage to release their reference to the image. nsIClipboardImage
  // will keep its own reference until it is destroyed.
  [noscript] void getNativeImage(in voidPtr aNativeImageData); 

  // releaseNativeImage should only be called if you used getNativeImageData. You should pass in the same
  // object to both methods. (this routine exists so callers do not have to link in urlmon.lib just to release
  // the stgmedium object on windows).
  [noscript] void releaseNativeImage(in voidPtr aNativeImageData);
};

%{ C++

%}
