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154 строки
6.1 KiB
Plaintext
154 строки
6.1 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corp.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Mike Pinkerton
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsISupports.idl"
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#include "nsISupportsArray.idl"
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#include "nsIDragSession.idl"
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#include "nsIScriptableRegion.idl"
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interface nsIDOMNode;
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interface nsIDOMDragEvent;
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interface nsIDOMDataTransfer;
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interface nsISelection;
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[scriptable, uuid(82B58ADA-F490-4C3D-B737-1057C4F1D052)]
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interface nsIDragService : nsISupports
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{
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const long DRAGDROP_ACTION_NONE = 0;
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const long DRAGDROP_ACTION_COPY = 1;
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const long DRAGDROP_ACTION_MOVE = 2;
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const long DRAGDROP_ACTION_LINK = 4;
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const long DRAGDROP_ACTION_UNINITIALIZED = 64;
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/**
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* Starts a modal drag session with an array of transaferables
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*
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* @param aTransferables - an array of transferables to be dragged
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* @param aRegion - a region containing rectangles for cursor feedback,
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* in window coordinates.
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* @param aActionType - specified which of copy/move/link are allowed
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*/
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void invokeDragSession ( in nsIDOMNode aDOMNode, in nsISupportsArray aTransferables,
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in nsIScriptableRegion aRegion, in unsigned long aActionType );
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/**
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* Starts a modal drag session using an image. The first four arguments are
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* the same as invokeDragSession.
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*
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* A custom image may be specified using the aImage argument. If this is
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* supplied, the aImageX and aImageY arguments specify the offset within
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* the image where the cursor would be positioned. That is, when the image
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* is drawn, it is offset up and left the amount so that the cursor appears
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* at that location within the image.
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*
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* If aImage is null, aImageX and aImageY are not used and the image is instead
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* determined from the source node aDOMNode, and the offset calculated so that
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* the initial location for the image appears in the same screen position as
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* where the element is located. The node must be within a document.
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*
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* Currently, supported images are all DOM nodes. If this is an HTML <image> or
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* <canvas>, the drag image is taken from the image data. If the element is in
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* a document, it will be rendered at its displayed size, othewise, it will be
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* rendered at its real size. For other types of elements, the element is
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* rendered into an offscreen buffer in the same manner as it is currently
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* displayed. The document selection is hidden while drawing.
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*
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* The aDragEvent must be supplied as the current screen coordinates of the
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* event are needed to calculate the image location.
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*/
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void invokeDragSessionWithImage(in nsIDOMNode aDOMNode,
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in nsISupportsArray aTransferableArray,
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in nsIScriptableRegion aRegion,
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in unsigned long aActionType,
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in nsIDOMNode aImage,
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in long aImageX,
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in long aImageY,
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in nsIDOMDragEvent aDragEvent,
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in nsIDOMDataTransfer aDataTransfer);
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/**
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* Start a modal drag session using the selection as the drag image.
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* The aDragEvent must be supplied as the current screen coordinates of the
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* event are needed to calculate the image location.
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*/
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void invokeDragSessionWithSelection(in nsISelection aSelection,
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in nsISupportsArray aTransferableArray,
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in unsigned long aActionType,
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in nsIDOMDragEvent aDragEvent,
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in nsIDOMDataTransfer aDataTransfer);
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/**
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* Returns the current Drag Session
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*/
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nsIDragSession getCurrentSession ( ) ;
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/**
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* Tells the Drag Service to start a drag session. This is called when
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* an external drag occurs
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*/
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void startDragSession ( ) ;
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/**
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* Tells the Drag Service to end a drag session. This is called when
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* an external drag occurs
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*
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* If aDoneDrag is true, the drag has finished, otherwise the drag has
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* just left the window.
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*/
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void endDragSession ( in PRBool aDoneDrag ) ;
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/**
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* Fire a drag event at the source of the drag
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*/
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void fireDragEventAtSource ( in unsigned long aMsg );
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/**
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* Increase/decrease dragging suppress level by one.
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* If level is greater than one, dragging is disabled.
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*/
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void suppress();
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void unsuppress();
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};
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%{ C++
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%}
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