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lightning-sunbird  0.9+nobinonly
nsHTMLFormControlAccessibleWrap.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 IBM Corporation
00018  * Portions created by the Initial Developer are Copyright (C) 2005
00019  * the Initial Developer. All Rights Reserved.
00020  *
00021  * Contributor(s):
00022  *   Author: Aaron Leventhal (aleventh@us.ibm.com)
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either of the GNU General Public License Version 2 or later (the "GPL"),
00026  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
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00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #include "nsHTMLFormControlAccessibleWrap.h"
00039 #include "nsIDOMHTMLInputElement.h"
00040 #include "nsIRadioControlElement.h"
00041 #include "nsIRadioGroupContainer.H"
00042 #include "nsTextFormatter.h"
00043 
00044 // --------------------------------------------------------
00045 // nsXULMenuAccessibleWrap Accessible
00046 // --------------------------------------------------------
00047 
00048 nsHTMLRadioButtonAccessibleWrap::nsHTMLRadioButtonAccessibleWrap(nsIDOMNode *aDOMNode, 
00049                                                          nsIWeakReference *aShell):
00050 nsHTMLRadioButtonAccessible(aDOMNode, aShell)
00051 {
00052 }
00053 
00054 NS_IMETHODIMP nsHTMLRadioButtonAccessibleWrap::GetDescription(nsAString& aDescription)
00055 {
00056   aDescription.Truncate();
00057 
00058   nsCOMPtr<nsIRadioControlElement> radio(do_QueryInterface(mDOMNode));
00059   if (!radio) {
00060     return NS_ERROR_FAILURE;
00061   }
00062 
00063   NS_ASSERTION(radio, "We should only have HTML radio buttons here");
00064   nsCOMPtr<nsIRadioGroupContainer> radioGroupContainer =
00065     radio->GetRadioGroupContainer();
00066 
00067   if (radioGroupContainer) {
00068     nsCOMPtr<nsIDOMHTMLInputElement> input(do_QueryInterface(mDOMNode));
00069     PRInt32 radioIndex, radioItemsInGroup;
00070     if (NS_SUCCEEDED(radioGroupContainer->GetPositionInGroup(input, &radioIndex, 
00071                                                              &radioItemsInGroup))) {
00072       // Don't localize the string "of" -- that's just the format of this string.
00073       // The AT will parse the relevant numbers out and add its own localization.
00074       nsTextFormatter::ssprintf(aDescription, NS_LITERAL_STRING("%d of %d").get(),
00075                                 radioIndex + 1, radioItemsInGroup);
00076       return NS_OK;
00077     }
00078   }
00079   return nsAccessibleWrap::GetDescription(aDescription);
00080 }