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lightning-sunbird  0.9+nobinonly
nsHTMLLinkAccessible.cpp
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *   Author: Aaron Leventhal (aaronl@netscape.com)
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either of the GNU General Public License Version 2 or later (the "GPL"),
00027  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
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00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 #include "nsHTMLLinkAccessible.h"
00040 #include "nsAccessibilityAtoms.h"
00041 #include "nsIAccessibleEvent.h"
00042 #include "nsINameSpaceManager.h"
00043 
00044 NS_IMPL_ISUPPORTS_INHERITED0(nsHTMLLinkAccessible, nsLinkableAccessible)
00045 
00046 nsHTMLLinkAccessible::nsHTMLLinkAccessible(nsIDOMNode* aDomNode, nsIWeakReference* aShell, nsIFrame *aFrame):
00047 nsLinkableAccessible(aDomNode, aShell)
00048 { 
00049 }
00050 
00051 /* wstring getName (); */
00052 NS_IMETHODIMP nsHTMLLinkAccessible::GetName(nsAString& aName)
00053 { 
00054   if (!mActionContent)
00055     return NS_ERROR_FAILURE;
00056 
00057   return AppendFlatStringFromSubtree(mActionContent, &aName);
00058 }
00059 
00060 /* unsigned long getRole (); */
00061 NS_IMETHODIMP nsHTMLLinkAccessible::GetRole(PRUint32 *_retval)
00062 {
00063   *_retval = ROLE_LINK;
00064 
00065   return NS_OK;
00066 }
00067 
00068 NS_IMETHODIMP nsHTMLLinkAccessible::GetState(PRUint32 *aState)
00069 {
00070   nsLinkableAccessible::GetState(aState);
00071   *aState  &= ~STATE_READONLY;
00072 
00073   nsCOMPtr<nsIContent> content(do_QueryInterface(mDOMNode));
00074   if (content && content->HasAttr(kNameSpaceID_None,
00075                                   nsAccessibilityAtoms::name)) {
00076     // This is how we indicate it is a named anchor
00077     // In other words, this anchor can be selected as a location :)
00078     // There is no other better state to use to indicate this.
00079     *aState |= STATE_SELECTABLE;
00080   }
00081 
00082   return NS_OK;
00083 }