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    : m_popup(0)
40{
41}
42
43void AccessibilityMenuListOption::setElement(HTMLElement* element)
44{
45    ASSERT_ARG(element, element->hasTagName(optionTag));
46    m_element = element;
47}
48
49Element* AccessibilityMenuListOption::actionElement() const
50{
51    return m_element.get();
52}
53
54AccessibilityObject* AccessibilityMenuListOption::parentObject() const
55{
56    return m_popup;
57}
58
59bool AccessibilityMenuListOption::isEnabled() const
60{
61    // disabled() returns true if the parent <select> element is disabled,
62    // which we don't want.
63    return !static_cast<HTMLOptionElement*>(m_element.get())->ownElementDisabled();
64}
65
66bool AccessibilityMenuListOption::isVisible() const
67{
68    // In a single-option select with the popup collapsed, only the selected
69    // item is considered visible.
70    return !m_popup->isOffScreen() || isSelected();
71}
72
73bool AccessibilityMenuListOption::isOffScreen() const
74{
75    // Invisible list options are considered to be offscreen.
76    return !isVisible();
77}
78
79bool AccessibilityMenuListOption::isSelected() const
80{
81    return static_cast<HTMLOptionElement*>(m_element.get())->selected();
82}
83
84void AccessibilityMenuListOption::setSelected(bool b)
85{
86    if (!canSetSelectedAttribute())
87        return;
88
89    static_cast<HTMLOptionElement*>(m_element.get())->setSelected(b);
90}
91
92String AccessibilityMenuListOption::nameForMSAA() const
93{
94    return static_cast<HTMLOptionElement*>(m_element.get())->text();
95}
96
97bool AccessibilityMenuListOption::canSetSelectedAttribute() const
98{
99    return isEnabled();
100}
101
102IntRect AccessibilityMenuListOption::elementRect() const
103{
104    AccessibilityObject* parent = parentObject();
105    ASSERT(parent->isMenuListPopup());
106
107    AccessibilityObject* grandparent = parent->parentObject();
108    ASSERT(grandparent->isMenuList());
109
110    return grandparent->elementRect();
111}
112
113} // namespace WebCore
114