103 lines
3.2 KiB
C++
103 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* 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
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* John Gaunt (jgaunt@netscape.com)
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* Aaron Leventhal (aaronl@netscape.com)
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* Kyle Yuan (kyle.yuan@sun.com)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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// NOTE: alphabetically ordered
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#include "nsTextAccessible.h"
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// ------------
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// Text Accessibles
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// ------------
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nsTextAccessible::nsTextAccessible(nsIDOMNode* aDOMNode, nsIWeakReference* aShell):
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nsLinkableAccessible(aDOMNode, aShell)
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{
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}
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// Make sure we don't support text or other irrelevant interfaces.
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// We have nsLinkableAccessible in our inheritance chain as a convenience in order to
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// get link actions and states on the text accessibles. Windows screen readers expect that.
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NS_IMPL_ISUPPORTS_INHERITED2(nsTextAccessible, nsAccessNode, nsIAccessible, nsPIAccessible)
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/**
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* We are text
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*/
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NS_IMETHODIMP nsTextAccessible::GetRole(PRUint32 *_retval)
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{
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*_retval = nsIAccessibleRole::ROLE_TEXT_LEAF;
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return NS_OK;
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}
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/**
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* No Children
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*/
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NS_IMETHODIMP nsTextAccessible::GetFirstChild(nsIAccessible **_retval)
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{
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*_retval = nsnull;
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return NS_OK;
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}
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/**
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* No Children
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*/
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NS_IMETHODIMP nsTextAccessible::GetLastChild(nsIAccessible **_retval)
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{
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*_retval = nsnull;
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return NS_OK;
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}
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/**
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* No Children
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*/
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NS_IMETHODIMP nsTextAccessible::GetChildCount(PRInt32 *_retval)
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{
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*_retval = 0;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsTextAccessible::AppendTextTo(nsAString& aText, PRUint32 aStartOffset, PRUint32 aLength)
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{
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nsIFrame *frame = GetFrame();
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NS_ENSURE_TRUE(frame, NS_ERROR_FAILURE);
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return frame->GetRenderedText(&aText, nsnull, nsnull, aStartOffset, aLength);
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}
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