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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 "core/accessibility/AXMenuListOption.h"
28 
29 #include "core/html/HTMLOptionElement.h"
30 
31 namespace blink {
32 
33 using namespace HTMLNames;
34 
AXMenuListOption()35 AXMenuListOption::AXMenuListOption()
36 {
37 }
38 
setElement(HTMLElement * element)39 void AXMenuListOption::setElement(HTMLElement* element)
40 {
41     ASSERT_ARG(element, isHTMLOptionElement(element));
42     m_element = element;
43 }
44 
actionElement() const45 Element* AXMenuListOption::actionElement() const
46 {
47     return m_element.get();
48 }
49 
isEnabled() const50 bool AXMenuListOption::isEnabled() const
51 {
52     // isDisabledFormControl() returns true if the parent <select> element is disabled,
53     // which we don't want.
54     return !toHTMLOptionElement(m_element)->ownElementDisabled();
55 }
56 
isVisible() const57 bool AXMenuListOption::isVisible() const
58 {
59     if (!m_parent)
60         return false;
61 
62     // In a single-option select with the popup collapsed, only the selected
63     // item is considered visible.
64     return !m_parent->isOffScreen() || isSelected();
65 }
66 
isOffScreen() const67 bool AXMenuListOption::isOffScreen() const
68 {
69     // Invisible list options are considered to be offscreen.
70     return !isVisible();
71 }
72 
isSelected() const73 bool AXMenuListOption::isSelected() const
74 {
75     return toHTMLOptionElement(m_element)->selected();
76 }
77 
setSelected(bool b)78 void AXMenuListOption::setSelected(bool b)
79 {
80     if (!canSetSelectedAttribute())
81         return;
82 
83     toHTMLOptionElement(m_element)->setSelected(b);
84 }
85 
canSetSelectedAttribute() const86 bool AXMenuListOption::canSetSelectedAttribute() const
87 {
88     return isEnabled();
89 }
90 
computeAccessibilityIsIgnored() const91 bool AXMenuListOption::computeAccessibilityIsIgnored() const
92 {
93     return accessibilityIsIgnoredByDefault();
94 }
95 
elementRect() const96 LayoutRect AXMenuListOption::elementRect() const
97 {
98     AXObject* parent = parentObject();
99     ASSERT(parent->isMenuListPopup());
100 
101     AXObject* grandparent = parent->parentObject();
102     ASSERT(grandparent->isMenuList());
103 
104     return grandparent->elementRect();
105 }
106 
stringValue() const107 String AXMenuListOption::stringValue() const
108 {
109     return toHTMLOptionElement(m_element)->text();
110 }
111 
112 } // namespace blink
113