gecko-dev/widget/public/nsIDragSession.idl

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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 Netscape are Copyright (C) 1999 Netscape
* Communications Corp. All Rights Reserved.
*
* Contributor(s):
* Mike Pinkerton
*/
#include "nsISupports.idl"
#include "nsISupportsArray.idl"
#include "nsITransferable.idl"
%{ C++
#include "nsSize.h"
%}
native nsSize (nsSize);
interface nsIDOMDocument;
interface nsIDOMNode;
[scriptable, uuid(CBA22C53-FCCE-11d2-96D4-0060B0FB9956)]
interface nsIDragSession : nsISupports
{
/**
* Set the current state of the drag whether it can be dropped or not.
* usually the target "frame" sets this so the native system can render the correct feedback
*/
attribute boolean canDrop;
/**
* Sets the action (copy, move, link, et.c) for the current drag
*/
attribute unsigned long dragAction;
/**
* Sets the current width and height if the drag target area.
* It will contain the current size of the Frame that the drag is currently in
*/
[noscript] attribute nsSize targetSize;
/**
* Get the number items that were dropped
*/
readonly attribute unsigned long numDropItems;
/**
* The document where the drag was started, which will be null if the
* drag originated outside the application. Useful for determining if a drop
* originated in the same document.
*/
readonly attribute nsIDOMDocument sourceDocument;
/**
* The dom node that was originally dragged to start the session, which will be null if the
* drag originated outside the application.
*/
readonly attribute nsIDOMNode sourceNode;
/**
* Get data from a Drag&Drop. Can be called while the drag is in process
* or after the drop has completed.
*
* @param aTransferable the transferable for the data to be put into
* @param aItemIndex which of multiple drag items, zero-based
*/
void getData ( in nsITransferable aTransferable, in unsigned long aItemIndex ) ;
/**
* Check to set if ant of the native data on the clipboard matches this data flavor
*
* @result NS_OK if if the data flavor is supported and, NS_ERROR_FAILURE is it is not
*/
boolean isDataFlavorSupported ( in string aDataFlavor ) ;
};
%{ C++
%}