/*

 * Copyright (C) 2009 Apple Inc. All Rights Reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

 */

#include "config.h"

#include "AccessibleImage.h"

#include <WebCore/AccessibilityRenderObject.h>

#include <WebCore/HTMLNames.h>

using namespace WebCore;

using namespace WebCore::HTMLNames;

AccessibleImage::AccessibleImage(AccessibilityObject* obj)

    : AccessibleBase(obj)

{

    ASSERT_ARG(obj, obj->isImage());

    ASSERT_ARG(obj, obj->isAccessibilityRenderObject());

}

String AccessibleImage::name() const

{

    if (!m_object->isAccessibilityRenderObject())

        return AccessibleBase::name();

    AccessibilityRenderObject* obj = static_cast<AccessibilityRenderObject*>(m_object);

    String ariaLabel = obj->ariaLabeledByAttribute();

    if (!ariaLabel.isEmpty())

        return ariaLabel;

    const AtomicString& altText = obj->getAttribute(HTMLNames::altAttr);

    if (!altText.isEmpty())

        return altText;

    return AccessibleBase::name();

}