author Alexander Surkov <>
Sat, 20 Feb 2010 16:56:35 -0800
changeset 38359 acab380e4de3a68370c1b7894b167e8a9007d05d
parent 37808 fb6bebbcf7f3bf781c58ac3afa7abc57210a4c83
permissions -rw-r--r--
Bug 545738 - clean up nsAccessibilityService::GetAccessible() and related, r=davidb

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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 * The contents of this file are subject to the Mozilla Public License Version
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 * the License. You may obtain a copy of the License at
 * 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
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 * 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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 * ***** END LICENSE BLOCK ***** */

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

interface nsIDocument;
interface nsIFrame;
interface nsObjectFrame;
interface nsIContent;

interface nsIAccessibilityService : nsIAccessibleRetrieval
  nsIAccessible createOuterDocAccessible(in nsIDOMNode aNode);

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

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

   * Used to describe sort of changes leading to accessible tree invalidation.
  const unsigned long NODE_APPEND = 0x01;
  const unsigned long NODE_REMOVE = 0x02;
  const unsigned long NODE_SIGNIFICANT_CHANGE = 0x03;
  const unsigned long FRAME_SHOW = 0x04;
  const unsigned long FRAME_HIDE = 0x05;
  const unsigned long FRAME_SIGNIFICANT_CHANGE = 0x06;

   * Invalidate the accessible tree when DOM tree or frame tree is changed.
   * @param aPresShell   [in] the presShell where changes occured
   * @param aContent     [in] the affected DOM content
   * @param aChangeType  [in] the change type (see constants declared above)
  void invalidateSubtreeFor(in nsIPresShell aPresShell, in nsIContent aContent,
                            in PRUint32 aChangeType);

   * Notify accessibility that anchor jump has been accomplished to the given
   * target. Used by layout.
  void notifyOfAnchorJumpTo(in nsIContent aTarget);

   * Fire accessible event of the given type for the given target.
   * @param aEvent   [in] accessible event type
   * @param aTarget  [in] target of accessible event
  void fireAccessibleEvent(in unsigned long aEvent, in nsIAccessible aTarget);

%{ C++

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

extern nsresult
NS_GetAccessibilityService(nsIAccessibilityService** aResult);