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1 /*
2  * Copyright (C) 2008 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  *
8  * 1.  Redistributions of source code must retain the above copyright
9  *     notice, this list of conditions and the following disclaimer.
10  * 2.  Redistributions in binary form must reproduce the above copyright
11  *     notice, this list of conditions and the following disclaimer in the
12  *     documentation and/or other materials provided with the distribution.
13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14  *     its contributors may be used to endorse or promote products derived
15  *     from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #include "config.h"
30 #include "core/accessibility/AXImageMapLink.h"
31 
32 #include "core/accessibility/AXObjectCache.h"
33 #include "core/accessibility/AXRenderObject.h"
34 
35 namespace blink {
36 
37 using namespace HTMLNames;
38 
AXImageMapLink()39 AXImageMapLink::AXImageMapLink()
40     : m_areaElement(nullptr)
41     , m_mapElement(nullptr)
42 {
43 }
44 
~AXImageMapLink()45 AXImageMapLink::~AXImageMapLink()
46 {
47 }
48 
detachFromParent()49 void AXImageMapLink::detachFromParent()
50 {
51     AXMockObject::detachFromParent();
52     m_areaElement = nullptr;
53     m_mapElement = nullptr;
54 }
55 
create()56 PassRefPtr<AXImageMapLink> AXImageMapLink::create()
57 {
58     return adoptRef(new AXImageMapLink());
59 }
60 
parentObject() const61 AXObject* AXImageMapLink::parentObject() const
62 {
63     if (m_parent)
64         return m_parent;
65 
66     if (!m_mapElement.get() || !m_mapElement->renderer())
67         return 0;
68 
69     return m_mapElement->document().axObjectCache()->getOrCreate(m_mapElement->renderer());
70 }
71 
roleValue() const72 AccessibilityRole AXImageMapLink::roleValue() const
73 {
74     if (!m_areaElement)
75         return LinkRole;
76 
77     const AtomicString& ariaRole = getAttribute(roleAttr);
78     if (!ariaRole.isEmpty())
79         return AXObject::ariaRoleToWebCoreRole(ariaRole);
80 
81     return LinkRole;
82 }
83 
actionElement() const84 Element* AXImageMapLink::actionElement() const
85 {
86     return anchorElement();
87 }
88 
anchorElement() const89 Element* AXImageMapLink::anchorElement() const
90 {
91     return m_areaElement.get();
92 }
93 
url() const94 KURL AXImageMapLink::url() const
95 {
96     if (!m_areaElement.get())
97         return KURL();
98 
99     return m_areaElement->href();
100 }
101 
accessibilityDescription() const102 String AXImageMapLink::accessibilityDescription() const
103 {
104     const AtomicString& ariaLabel = getAttribute(aria_labelAttr);
105     if (!ariaLabel.isEmpty())
106         return ariaLabel;
107     const AtomicString& alt = getAttribute(altAttr);
108     if (!alt.isEmpty())
109         return alt;
110 
111     return String();
112 }
113 
title() const114 String AXImageMapLink::title() const
115 {
116     const AtomicString& title = getAttribute(titleAttr);
117     if (!title.isEmpty())
118         return title;
119     const AtomicString& summary = getAttribute(summaryAttr);
120     if (!summary.isEmpty())
121         return summary;
122 
123     return String();
124 }
125 
elementRect() const126 LayoutRect AXImageMapLink::elementRect() const
127 {
128     if (!m_mapElement.get() || !m_areaElement.get())
129         return LayoutRect();
130 
131     RenderObject* renderer;
132     if (m_parent && m_parent->isAXRenderObject())
133         renderer = toAXRenderObject(m_parent)->renderer();
134     else
135         renderer = m_mapElement->renderer();
136 
137     if (!renderer)
138         return LayoutRect();
139 
140     return m_areaElement->computeRect(renderer);
141 }
142 
143 } // namespace blink
144