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nsIAccessibilityService.idl

/* -*- 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 the Mozilla browser.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1999
 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 *
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 * either of 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
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 * under the terms of either the GPL or the LGPL, and not to allow others to
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 * decision by deleting the provisions above and replace them with the notice
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 * 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.
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 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"
#include "nsIAccessibleRetrieval.idl"

interface nsIAccessibleEventListener;
interface nsIDocument;
interface nsIFrame;
interface nsObjectFrame;
interface nsIContent;
interface nsITimer;

[uuid(27386cf1-f27e-4d2d-9bf4-c4621d50d299)]
interface nsIAccessibilityService : nsIAccessibleRetrieval
{
  nsIAccessible createOuterDocAccessible(in nsIDOMNode aNode);
  nsIAccessible createRootAccessible(in nsIPresShell aShell, in nsIDocument aDocument);

  nsIAccessible createHTML4ButtonAccessible(in nsISupports aFrame);
  nsIAccessible createHyperTextAccessible(in nsISupports aFrame);
  nsIAccessible createHTMLBRAccessible(in nsISupports aFrame);
  nsIAccessible createHTMLButtonAccessible(in nsISupports aFrame);
  nsIAccessible createHTMLAccessibleByMarkup(in nsIFrame aFrame, in nsIWeakReference aWeakShell, in nsIDOMNode aDOMNode);
  nsIAccessible createHTMLLIAccessible(in nsISupports aFrame, in nsISupports aBulletFrame, in AString aBulletText);
  nsIAccessible createHTMLCheckboxAccessible(in nsISupports aFrame);
  nsIAccessible createHTMLComboboxAccessible(in nsIDOMNode aNode, in nsIWeakReference aPresShell);
  nsIAccessible createHTMLGenericAccessible(in nsISupports aFrame);
  nsIAccessible createHTMLGroupboxAccessible(in nsISupports aFrame);
  nsIAccessible createHTMLHRAccessible(in nsISupports aFrame);
  nsIAccessible createHTMLImageAccessible(in nsISupports aFrame);
  nsIAccessible createHTMLLabelAccessible(in nsISupports aFrame);
  nsIAccessible createHTMLListboxAccessible(in nsIDOMNode aNode, in nsIWeakReference aPresShell);
  nsIAccessible createHTMLObjectFrameAccessible(in nsObjectFrame aFrame);
  nsIAccessible createHTMLRadioButtonAccessible(in nsISupports aFrame);
  nsIAccessible createHTMLSelectOptionAccessible(in nsIDOMNode aNode, in nsIAccessible aAccParent, in nsIWeakReference aPresShell);
  nsIAccessible createHTMLTableAccessible(in nsISupports aFrame);
  nsIAccessible createHTMLTableCellAccessible(in nsISupports aFrame);
  nsIAccessible createHTMLTableHeadAccessible(in nsIDOMNode aDOMNode);
  nsIAccessible createHTMLTextAccessible(in nsISupports aFrame);
  nsIAccessible createHTMLTextFieldAccessible(in nsISupports aFrame);
  nsIAccessible createHTMLCaptionAccessible(in nsISupports aFrame);

  nsIAccessible getAccessible(in nsIDOMNode aNode, in nsIPresShell aPresShell,                          
                              in nsIWeakReference aWeakShell, 
                              inout nsIFrame frameHint, out boolean aIsHidden);

  // For gtk+ native window accessible
  nsIAccessible addNativeRootAccessible(in voidPtr aAtkAccessible);
  void removeNativeRootAccessible(in nsIAccessible aRootAccessible);

  /**
   * Invalidate the accessibility cache associated with aPresShell, for accessibles
   * that were generated for aContainerContent and it's subtree.
   * The container content node for the change is passed in, rather than the
   * changed presentation for the content node itself.
   * @param aPresShell         The presShell where changes occured
   * @param aChangeContent     The affected DOM content
   * @param aEvent             The event from nsIAccessibleEvent that
   *                           caused the change:
   *                           Must be one of:
   *                           EVENT_REORDER (change),
   *                           EVENT_SHOW (make visible or create) or 
   *                           EVENT_HIDE (destroy or hide)
   */
  void invalidateSubtreeFor(in nsIPresShell aPresShell,
                            in nsIContent aChangedContent,
                            in PRUint32 aEvent);

  /**
   *  An internal doc load event has occured. Handle the event and remove it from the list.
   *  @param aTimer      The timer created to handle this doc load event
   *  @param aClosure    The nsIWebProgress* for the load event
   *  @param aEventType  The type of load event, one of: nsIAccessibleEvent::EVENT_DOCUMENT_LOAD_START,
   *                                                     nsIAccessibleEvent::EVENT_DOCUMENT_LOAD_COMPLETE or
   *                                                     nsIAccessibleEvent::EVENT_DOCUMENT_LOAD_STOPPED
   */
  void processDocLoadEvent(in nsITimer aTimer, in voidPtr aClosure, in PRUint32 aEventType);

};


%{ C++

// for component registration
// {DE401C37-9A7F-4278-A6F8-3DE2833989EF}
#define NS_ACCESSIBILITY_SERVICE_CID \
{ 0xde401c37, 0x9a7f, 0x4278, { 0xa6, 0xf8, 0x3d, 0xe2, 0x83, 0x39, 0x89, 0xef } }

extern nsresult
NS_GetAccessibilityService(nsIAccessibilityService** aResult);

%}

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