gecko-dev/accessible/src/base/nsFormControlAccessible.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 mozilla.org 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 (jgaunt@netscape.com)
* Aaron Leventhal (aaronl@netscape.com)
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 NPL, 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 NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
// NOTE: alphabetically ordered
#include "nsFormControlAccessible.h"
#include "nsIDocument.h"
#include "nsIDOMHTMLFormElement.h"
#include "nsIDOMHTMLInputElement.h"
#include "nsIDOMHTMLLabelElement.h"
#include "nsIDOMNodeList.h"
#include "nsIDOMXULButtonElement.h"
#include "nsIDOMXULCheckboxElement.h"
#include "nsIDOMXULDocument.h"
#include "nsIDOMXULElement.h"
#include "nsIDOMXULLabelElement.h"
#include "nsIDOMXULSelectCntrlEl.h"
#include "nsIDOMXULSelectCntrlItemEl.h"
#include "nsReadableUtils.h"
#include "nsString.h"
/**
* nsFormControlAccessible
*/
nsFormControlAccessible::nsFormControlAccessible(nsIDOMNode* aNode, nsIWeakReference* aShell):
nsAccessibleWrap(aNode, aShell)
{
}
NS_IMPL_ISUPPORTS_INHERITED0(nsFormControlAccessible, nsAccessible)
/**
* XUL states: focused, unavailable(disabled), focusable, ?protected?
* HTML states: focused, unabailable(disabled), focusable, protected
*/
NS_IMETHODIMP nsFormControlAccessible::GetAccState(PRUint32 *_retval)
{
// Get the focused state from the nsAccessible
nsAccessible::GetAccState(_retval);
PRBool disabled = PR_FALSE;
nsresult rv = NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMHTMLInputElement> htmlFormElement(do_QueryInterface(mDOMNode, &rv));
if (NS_SUCCEEDED(rv) && htmlFormElement) {
htmlFormElement->GetDisabled(&disabled);
nsAutoString typeString;
htmlFormElement->GetType(typeString);
if (typeString.EqualsIgnoreCase("password"))
*_retval |= STATE_PROTECTED;
}
else {
nsCOMPtr<nsIDOMXULControlElement> xulFormElement(do_QueryInterface(mDOMNode, &rv));
if (NS_SUCCEEDED(rv) && xulFormElement) {
xulFormElement->GetDisabled(&disabled);
/* XXX jgaunt do XUL elements support password fields? */
}
}
if (disabled)
*_retval |= STATE_UNAVAILABLE;
else
*_retval |= STATE_FOCUSABLE;
return NS_OK;
}
/**
* Will be called by both HTML and XUL elements, this method
* merely checks who is calling and then calls the appropriate
* protected method for the XUL or HTML element.
*/
NS_IMETHODIMP nsFormControlAccessible::GetAccName(nsAString& _retval)
{
nsCOMPtr<nsIDOMXULElement> xulFormElement(do_QueryInterface(mDOMNode));
if (xulFormElement)
return GetXULAccName(_retval);
else
return GetHTMLAccName(_retval);
}
/**
* No Children
*/
NS_IMETHODIMP nsFormControlAccessible::GetAccFirstChild(nsIAccessible **_retval)
{
*_retval = nsnull;
return NS_OK;
}
/**
* No Children
*/
NS_IMETHODIMP nsFormControlAccessible::GetAccLastChild(nsIAccessible **_retval)
{
*_retval = nsnull;
return NS_OK;
}
/**
* No Children
*/
NS_IMETHODIMP nsFormControlAccessible::GetAccChildCount(PRInt32 *_retval)
{
*_retval = 0;
return NS_OK;
}
// ------------
// Radio button
// ------------
nsRadioButtonAccessible::nsRadioButtonAccessible(nsIDOMNode* aNode, nsIWeakReference* aShell):
nsFormControlAccessible(aNode, aShell)
{
}
/**
*
*/
NS_IMETHODIMP nsRadioButtonAccessible::GetAccNumActions(PRUint8 *_retval)
{
*_retval = eSingle_Action;
return NS_OK;
}
/**
*
*/
NS_IMETHODIMP nsRadioButtonAccessible::GetAccActionName(PRUint8 index, nsAString& _retval)
{
if (index == eAction_Click) {
nsAccessible::GetTranslatedString(NS_LITERAL_STRING("select"), _retval);
return NS_OK;
}
return NS_ERROR_INVALID_ARG;
}
/**
*
*/
NS_IMETHODIMP nsRadioButtonAccessible::GetAccRole(PRUint32 *_retval)
{
*_retval = ROLE_RADIOBUTTON;
return NS_OK;
}