1/*
2 * Copyright (C) 2010 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 "AccessibilityMenuListOption.h"
28
29#include "AXObjectCache.h"
30#include "AccessibilityMenuListPopup.h"
31#include "HTMLNames.h"
32#include "HTMLOptionElement.h"
33
34namespace WebCore {
35
36using namespace HTMLNames;
37
38AccessibilityMenuListOption::AccessibilityMenuListOption()
39{
40}
41
42void AccessibilityMenuListOption::setElement(HTMLElement* element)
43{
44 ASSERT_ARG(element, is<HTMLOptionElement>(element));
45 m_element = element;
46}
47
48Element* AccessibilityMenuListOption::actionElement() const
49{
50 return m_element.get();
51}
52
53bool AccessibilityMenuListOption::isEnabled() const
54{
55 // isDisabledFormControl() returns true if the parent <select> element is disabled,
56 // which we don't want.
57 return !downcast<HTMLOptionElement>(*m_element).ownElementDisabled();
58}
59
60bool AccessibilityMenuListOption::isVisible() const
61{
62 if (!m_parent)
63 return false;
64
65 // In a single-option select with the popup collapsed, only the selected
66 // item is considered visible.
67 return !m_parent->isOffScreen() || isSelected();
68}
69
70bool AccessibilityMenuListOption::isOffScreen() const
71{
72 // Invisible list options are considered to be offscreen.
73 return !isVisible();
74}
75
76bool AccessibilityMenuListOption::isSelected() const
77{
78 return downcast<HTMLOptionElement>(*m_element).selected();
79}
80
81void AccessibilityMenuListOption::setSelected(bool selected)
82{
83 if (!canSetSelectedAttribute())
84 return;
85
86 downcast<HTMLOptionElement>(*m_element).setSelected(selected);
87}
88
89String AccessibilityMenuListOption::nameForMSAA() const
90{
91 return stringValue();
92}
93
94bool AccessibilityMenuListOption::canSetSelectedAttribute() const
95{
96 return isEnabled();
97}
98
99bool AccessibilityMenuListOption::computeAccessibilityIsIgnored() const
100{
101 return accessibilityIsIgnoredByDefault();
102}
103
104LayoutRect AccessibilityMenuListOption::elementRect() const
105{
106 AccessibilityObject* parent = parentObject();
107 if (!parent)
108 return boundingBoxRect();
109 ASSERT(parent->isMenuListPopup());
110
111 AccessibilityObject* grandparent = parent->parentObject();
112 if (!grandparent)
113 return boundingBoxRect();
114 ASSERT(grandparent->isMenuList());
115
116 return grandparent->elementRect();
117}
118
119String AccessibilityMenuListOption::stringValue() const
120{
121 return downcast<HTMLOptionElement>(*m_element).label();
122}
123
124} // namespace WebCore
125