19bef9fbc4
r=aaronl@netscape.com sr=waterson@netscape.com git-svn-id: svn://10.0.0.236/trunk@99670 18797224-902f-48f8-a5cc-f745e15eee43
133 lines
3.7 KiB
C++
133 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Original Author: Eric Vaughan (evaughan@netscape.com)
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*
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* Contributor(s):
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*/
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#include "nsHTMLListboxAccessible.h"
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#include "nsCOMPtr.h"
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#include "nsIDOMHTMLInputElement.h"
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#include "nsIDOMHTMLSelectElement.h"
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#include "nsIFrame.h"
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#include "nsLayoutAtoms.h"
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/** ----- nsHTMLListboxAccessible ----- */
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/**
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* Constructor -- create the nsHTMLAccessible
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*/
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nsHTMLListboxAccessible::nsHTMLListboxAccessible(nsIDOMNode* aDOMNode,
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nsIWeakReference* aShell)
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:nsAccessible(aDOMNode, aShell)
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{
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}
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/** Inherit the ISupports impl from nsAccessible */
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NS_IMPL_ISUPPORTS_INHERITED0(nsHTMLListboxAccessible, nsAccessible)
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/**
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* Tell our caller we are a list ( there isn't a listbox value )
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*/
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NS_IMETHODIMP nsHTMLListboxAccessible::GetAccRole(PRUint32 *_retval)
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{
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*_retval = ROLE_LIST;
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return NS_OK;
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}
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/**
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* Through the arg, pass back our last child, a nsHTMLListboxWindowAccessible object
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*/
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NS_IMETHODIMP nsHTMLListboxAccessible::GetAccLastChild(nsIAccessible **_retval)
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{
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*_retval = new nsHTMLSelectListAccessible(this, mDOMNode, mPresShell);
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if ( ! *_retval )
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return NS_ERROR_FAILURE;
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NS_ADDREF(*_retval);
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return NS_OK;
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}
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/**
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* Through the arg, pass back our first child, a nsHTMLListboxWindowAccessible object
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*/
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NS_IMETHODIMP nsHTMLListboxAccessible::GetAccFirstChild(nsIAccessible **_retval)
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{
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*_retval = new nsHTMLSelectListAccessible(this, mDOMNode, mPresShell);
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if ( ! *_retval )
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return NS_ERROR_FAILURE;
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NS_ADDREF(*_retval);
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return NS_OK;
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}
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/**
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* We always have 1 child: SelectList.
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*/
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NS_IMETHODIMP nsHTMLListboxAccessible::GetAccChildCount(PRInt32 *_retval)
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{
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*_retval = 1;
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return NS_OK;
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}
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/**
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* nsIAccessibleSelectable method. This needs to get from the select the list
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* of select options and then iterate through that pulling out the selected
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* items and creating IAccessible objects for them. Put the IAccessibles in
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* the nsISupportsArray and return them.
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*/
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NS_IMETHODIMP nsHTMLListboxAccessible::GetSelectedChildren(nsISupportsArray **_retval)
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{
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*_retval = nsnull;
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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/**
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* Our value is the value of our ( first ) selected child. SelectElement
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* returns this by default with GetValue().
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*/
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NS_IMETHODIMP nsHTMLListboxAccessible::GetAccValue(nsAWritableString& _retval)
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{
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nsCOMPtr<nsIDOMHTMLSelectElement> select (do_QueryInterface(mDOMNode));
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if ( select ) {
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select->GetValue(_retval);
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return NS_OK;
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}
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return NS_ERROR_FAILURE;
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}
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/**
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* As a nsHTMLListboxAccessible we can have the following states:
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* STATE_FOCUSED
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* STATE_READONLY
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* STATE_FOCUSABLE
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*/
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NS_IMETHODIMP nsHTMLListboxAccessible::GetAccState(PRUint32 *_retval)
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{
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// this sets either STATE_FOCUSED or 0
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nsAccessible::GetAccState(_retval);
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*_retval |= STATE_READONLY | STATE_FOCUSABLE;
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return NS_OK;
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}
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