gecko-dev/accessible/public/nsIAccessibleRetrieval.idl

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/* -*- Mode: C++; 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.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2003
* the Initial Developer. All Rights Reserved.
*
* Original Author: Aaron Leventhal (aaronl@netscape.com)
* Contributor(s): Kyle Yuan (kyle.yuan@sun.com)
*
* 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"
interface nsIDOMNode;
interface nsIAccessible;
interface nsIWeakReference;
interface nsIPresShell;
interface nsIDOMWindow;
interface nsIAccessNode;
/**
* An interface for in-process accessibility clients
* wishing to get an nsIAccessible or nsIAccessNode for
* a given DOM node.
* More documentation at:
* http://www.mozilla.org/projects/ui/accessibility
*
* @status UNDER_REVIEW
*/
[scriptable, uuid(2d8c1b1b-7a3f-4962-8a88-81ca019c11e9)]
interface nsIAccessibleRetrieval : nsISupports
{
/**
* Return an nsIAccessible for a DOM node in pres shell 0.
* Create a new accessible of the appropriate type if necessary,
* or use one from the accessibility cache if it already exists.
* @param aNode The DOM node to get an accessible for.
* @return The nsIAccessible for the given DOM node.
*/
nsIAccessible getAccessibleFor(in nsIDOMNode aNode);
/**
* The same like getAccessibleFor method except it returns accessible only if
* it is attached, i.e. accessible is certified to be a descendent of the root
* accessible.
*
* @param aNode - the DOM node to get an accessible for.
*
* @return - the accessible for the given DOM node.
*/
nsIAccessible getAttachedAccessibleFor(in nsIDOMNode aNode);
/**
* Return an DOM node that is relevant to attached accesible check. This
* node is either from bindings chain if given node is anonymous and owner
* binding denies accessible in anonymous content or given node (it's not
* important whether it is accessible or not). This method doesn't create
* accessible object for returned node.
*
* @param aNode - the DOM node to get relevant content node.
*
* @return - the DOM node for parent attached accessible
*/
nsIDOMNode getRelevantContentNodeFor(in nsIDOMNode aNode);
/**
* Return an nsIAccessible for a DOM node in pres shell for this DOM window.
* Create a new accessible of the appropriate type if necessary,
* or use one from the accessibility cache if it already exists.
* @param aNode The DOM node to get an accessible for.
* @param aDOMWin The DOM window containing the node.
* @return The nsIAccessible for the given DOM node.
*/
nsIAccessible getAccessibleInWindow(in nsIDOMNode aNode, in nsIDOMWindow aDOMWin);
/**
* Return an nsIAccessible for a DOM node in the given weak shell.
* Create a new accessible of the appropriate type if necessary,
* or use one from the accessibility cache if it already exists.
* @param aNode The DOM node to get an accessible for.
* @param aPresShell The presentation shell which contains layout info for the DOM node.
* @return The nsIAccessible for the given DOM node.
*/
nsIAccessible getAccessibleInWeakShell(in nsIDOMNode aNode, in nsIWeakReference aPresShell);
/**
* Return an nsIAccessible for a DOM node in the given pres shell.
* Create a new accessible of the appropriate type if necessary,
* or use one from the accessibility cache if it already exists.
* @param aNode The DOM node to get an accessible for.
* @param aPresShell The presentation shell which contains layout info for the DOM node.
* @return The nsIAccessible for the given DOM node.
*/
nsIAccessible getAccessibleInShell(in nsIDOMNode aNode, in nsIPresShell aPresShell);
/**
* Return an nsIAccessNode for an already created DOM node in the given weak shell.
* Does not create a new one -- only returns cached access nodes.
* @param aNode The DOM node to get an access node for.
* @param aPresShell The presentation shell which contains layout info for the DOM node.
* @return The nsIAccessNode for the given DOM node or null if
* an access node does not already exist for this DOM node.
*/
nsIAccessNode getCachedAccessNode(in nsIDOMNode aNode, in nsIWeakReference aShell);
/**
* Return an nsIAccessible for an already created DOM node in the given weak shell.
* Does not create a new one -- only returns cached accessibles.
* @param aNode The DOM node to get an accessible for.
* @param aPresShell The presentation shell which contains layout info for the DOM node.
* @return The nsIAccessible for the given DOM node or null if
* an accessible does not already exist for this DOM node.
*/
nsIAccessible getCachedAccessible(in nsIDOMNode aNode, in nsIWeakReference aShell);
};
%{ C++
// for component registration
// {663CA4A8-D219-4000-925D-D8F66406B626}
#define NS_ACCESSIBLE_RETRIEVAL_CID \
{ 0x663ca4a8, 0xd219, 0x4000, { 0x92, 0x5d, 0xd8, 0xf6, 0x64, 0x6, 0xb6, 0x26 } }
%}