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 

    32 using namespace WebCore;

    33 using namespace WebCore::HTMLNames;

    34 

    35 AccessibleImage::AccessibleImage(AccessibilityObject* obj)

    36     : AccessibleBase(obj)

    37 {

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

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

    40 }

    41 

    42 String 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 }