1/*
2 * Copyright (c) 2012 Motorola Mobility, Inc. All rights reserved.
3 * Copyright (C) 2014 Apple Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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 *
14 * THIS SOFTWARE IS PROVIDED BY MOTOROLA MOBILITY, INC. AND ITS CONTRIBUTORS
15 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MOTOROLA MOBILITY, INC. OR ITS
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
24 * THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "config.h"
28#include "RadioNodeList.h"
29
30#include "HTMLFormElement.h"
31#include "HTMLInputElement.h"
32#include "HTMLNames.h"
33#include "HTMLObjectElement.h"
34#include "NodeRareData.h"
35#include <wtf/IsoMallocInlines.h>
36
37namespace WebCore {
38
39using namespace HTMLNames;
40
41WTF_MAKE_ISO_ALLOCATED_IMPL(RadioNodeList);
42
43RadioNodeList::RadioNodeList(ContainerNode& rootNode, const AtomicString& name)
44 : CachedLiveNodeList(rootNode, InvalidateForFormControls)
45 , m_name(name)
46 , m_isRootedAtDocument(is<HTMLFormElement>(ownerNode()))
47{
48}
49
50RadioNodeList::~RadioNodeList()
51{
52 ownerNode().nodeLists()->removeCacheWithAtomicName(this, m_name);
53}
54
55static inline RefPtr<HTMLInputElement> toRadioButtonInputElement(HTMLElement& element)
56{
57 if (!is<HTMLInputElement>(element))
58 return nullptr;
59
60 auto& inputElement = downcast<HTMLInputElement>(element);
61 if (!inputElement.isRadioButton() || inputElement.value().isEmpty())
62 return nullptr;
63 return &inputElement;
64}
65
66String RadioNodeList::value() const
67{
68 auto length = this->length();
69 for (unsigned i = 0; i < length; ++i) {
70 auto inputElement = toRadioButtonInputElement(*item(i));
71 if (!inputElement || !inputElement->checked())
72 continue;
73 return inputElement->value();
74 }
75 return String();
76}
77
78void RadioNodeList::setValue(const String& value)
79{
80 auto length = this->length();
81 for (unsigned i = 0; i < length; ++i) {
82 auto inputElement = toRadioButtonInputElement(*item(i));
83 if (!inputElement || inputElement->value() != value)
84 continue;
85 inputElement->setChecked(true);
86 return;
87 }
88}
89
90bool RadioNodeList::checkElementMatchesRadioNodeListFilter(const Element& testElement) const
91{
92 ASSERT(is<HTMLObjectElement>(testElement) || is<HTMLFormControlElement>(testElement));
93 if (is<HTMLFormElement>(ownerNode())) {
94 RefPtr<HTMLFormElement> formElement;
95 if (testElement.hasTagName(objectTag))
96 formElement = downcast<HTMLObjectElement>(testElement).form();
97 else
98 formElement = downcast<HTMLFormControlElement>(testElement).form();
99 if (!formElement || formElement != &ownerNode())
100 return false;
101 }
102
103 return testElement.getIdAttribute() == m_name || testElement.getNameAttribute() == m_name;
104}
105
106bool RadioNodeList::elementMatches(Element& testElement) const
107{
108 if (!is<HTMLObjectElement>(testElement) && !is<HTMLFormControlElement>(testElement))
109 return false;
110
111 if (is<HTMLInputElement>(testElement) && downcast<HTMLInputElement>(testElement).isImageButton())
112 return false;
113
114 return checkElementMatchesRadioNodeListFilter(testElement);
115}
116
117} // namspace
118
119