1/*
2 * Copyright (C) 2009 Apple Inc. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "AccessibleImage.h"
28
29#include <WebCore/AccessibilityRenderObject.h>
30#include <WebCore/HTMLNames.h>
31
32using namespace WebCore;
33using namespace WebCore::HTMLNames;
34
35AccessibleImage::AccessibleImage(AccessibilityObject* obj)
36    : AccessibleBase(obj)
37{
38    ASSERT_ARG(obj, obj->isImage());
39    ASSERT_ARG(obj, obj->isAccessibilityRenderObject());
40}
41
42String AccessibleImage::name() const
43{
44    if (!m_object->isAccessibilityRenderObject())
45        return AccessibleBase::name();
46
47    AccessibilityRenderObject* obj = static_cast<AccessibilityRenderObject*>(m_object);
48
49    String ariaLabel = obj->ariaLabeledByAttribute();
50    if (!ariaLabel.isEmpty())
51        return ariaLabel;
52
53    const AtomicString& altText = obj->getAttribute(HTMLNames::altAttr);
54    if (!altText.isEmpty())
55        return altText;
56
57    return AccessibleBase::name();
58}
59