author Alex Keybl <>
Tue, 31 Jan 2012 10:17:43 -0800
changeset 88717 801015738a123a86458eba7e4f0b3f4bae3a668e
parent 86717 0ef29ddd07e54d636e64586bc09130e1f315a3e9
child 88750 38607065cf3f4eb9457c4a1b4825701961e44f6d
permissions -rw-r--r--
Added tag AURORA_BASE_20120131 for changeset bbc7014db2de

/* -*- 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
 * 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 code.
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 * Contributor(s):
 *   John Gaunt ( (original author)
 * Alternatively, the contents of this file may be used under the terms of
 * 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
 * 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 "nsHTMLWin32ObjectAccessible.h"

#include "Role.h"
#include "States.h"

using namespace mozilla::a11y;

// nsHTMLWin32ObjectOwnerAccessible

  nsHTMLWin32ObjectOwnerAccessible(nsIContent *aContent,
                                   nsIWeakReference *aShell, void *aHwnd) :
  nsAccessibleWrap(aContent, aShell), mHwnd(aHwnd)
  // Our only child is a nsHTMLWin32ObjectAccessible object.
  mNativeAccessible = new nsHTMLWin32ObjectAccessible(mHwnd);

// nsHTMLWin32ObjectOwnerAccessible: nsAccessNode implementation

  mNativeAccessible = nsnull;

// nsHTMLWin32ObjectOwnerAccessible: nsAccessible implementation

  return roles::EMBEDDED_OBJECT;

  // XXX: No HWND means this is windowless plugin which is not accessible in
  // the meantime.
  return mHwnd ? nsAccessibleWrap::NativeState() : states::UNAVAILABLE;

// nsHTMLWin32ObjectOwnerAccessible: nsAccessible protected implementation

  if (mNativeAccessible)

// nsHTMLWin32ObjectAccessible

nsHTMLWin32ObjectAccessible::nsHTMLWin32ObjectAccessible(void* aHwnd):
nsLeafAccessible(nsnull, nsnull)
  mHwnd = aHwnd;
  if (mHwnd) {
    // The plugin is not windowless. In this situation we use 
    // use its inner child owned by the plugin so that we don't get
    // in an infinite loop, where the WM_GETOBJECT's get forwarded
    // back to us and create another nsHTMLWin32ObjectAccessible
    HWND childWnd = ::GetWindow((HWND)aHwnd, GW_CHILD);
    if (childWnd) {
      mHwnd = childWnd;

NS_IMPL_ISUPPORTS_INHERITED1(nsHTMLWin32ObjectAccessible, nsAccessible, nsIAccessibleWin32Object)

NS_IMETHODIMP nsHTMLWin32ObjectAccessible::GetHwnd(void **aHwnd) 
  *aHwnd = mHwnd;
  return NS_OK;