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 "AccessibilityMenuList.h"
28
29#include "AXObjectCache.h"
30#include "AccessibilityMenuListPopup.h"
31#include "RenderMenuList.h"
32
33namespace WebCore {
34
35AccessibilityMenuList::AccessibilityMenuList(RenderMenuList* renderer)
36    : AccessibilityRenderObject(renderer)
37{
38}
39
40PassRefPtr<AccessibilityMenuList> AccessibilityMenuList::create(RenderMenuList* renderer)
41{
42    return adoptRef(new AccessibilityMenuList(renderer));
43}
44
45bool AccessibilityMenuList::press() const
46{
47    RenderMenuList* menuList = static_cast<RenderMenuList*>(m_renderer);
48    if (menuList->popupIsVisible())
49        menuList->hidePopup();
50    else
51        menuList->showPopup();
52    return true;
53}
54
55void AccessibilityMenuList::addChildren()
56{
57    m_haveChildren = true;
58
59    AXObjectCache* cache = m_renderer->document()->axObjectCache();
60
61    AccessibilityObject* list = cache->getOrCreate(MenuListPopupRole);
62    if (!list)
63        return;
64
65    static_cast<AccessibilityMockObject*>(list)->setParent(this);
66    if (list->accessibilityIsIgnored()) {
67        cache->remove(list->axObjectID());
68        return;
69    }
70
71    m_children.append(list);
72
73    list->addChildren();
74}
75
76void AccessibilityMenuList::childrenChanged()
77{
78    if (m_children.isEmpty())
79        return;
80
81    ASSERT(m_children.size() == 1);
82    m_children[0]->childrenChanged();
83}
84
85bool AccessibilityMenuList::isCollapsed() const
86{
87    return !static_cast<RenderMenuList*>(m_renderer)->popupIsVisible();
88}
89
90bool AccessibilityMenuList::canSetFocusAttribute() const
91{
92    if (!node())
93        return false;
94
95    return !toElement(node())->isDisabledFormControl();
96}
97
98void AccessibilityMenuList::didUpdateActiveOption(int optionIndex)
99{
100    RefPtr<Document> document = m_renderer->document();
101    AXObjectCache* cache = document->axObjectCache();
102
103    const AccessibilityChildrenVector& childObjects = children();
104    if (!childObjects.isEmpty()) {
105        ASSERT(childObjects.size() == 1);
106        ASSERT(childObjects[0]->isMenuListPopup());
107
108        if (childObjects[0]->isMenuListPopup()) {
109            if (AccessibilityMenuListPopup* popup = static_cast<AccessibilityMenuListPopup*>(childObjects[0].get()))
110                popup->didUpdateActiveOption(optionIndex);
111        }
112    }
113
114    cache->postNotification(this, document.get(), AXObjectCache::AXMenuListValueChanged, true, PostSynchronously);
115}
116
117} // namespace WebCore
118