1 /*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 1999 Antti Koivisto (koivisto@kde.org)
4 * (C) 2001 Dirk Mueller (mueller@kde.org)
5 * Copyright (C) 2004, 2005, 2006, 2007, 2010 Apple Inc. All rights reserved.
6 * (C) 2006 Alexey Proskuryakov (ap@nypop.com)
7 * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Library General Public License for more details.
18 *
19 * You should have received a copy of the GNU Library General Public License
20 * along with this library; see the file COPYING.LIB. If not, write to
21 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 * Boston, MA 02110-1301, USA.
23 *
24 */
25
26 #include "config.h"
27 #include "HTMLButtonElement.h"
28
29 #include "Attribute.h"
30 #include "EventNames.h"
31 #include "FormDataList.h"
32 #include "HTMLFormElement.h"
33 #include "HTMLNames.h"
34 #include "KeyboardEvent.h"
35 #include "RenderButton.h"
36 #include "ScriptEventListener.h"
37 #include <wtf/StdLibExtras.h>
38
39 namespace WebCore {
40
41 using namespace HTMLNames;
42
HTMLButtonElement(const QualifiedName & tagName,Document * document,HTMLFormElement * form)43 inline HTMLButtonElement::HTMLButtonElement(const QualifiedName& tagName, Document* document, HTMLFormElement* form)
44 : HTMLFormControlElement(tagName, document, form)
45 , m_type(SUBMIT)
46 , m_isActivatedSubmit(false)
47 {
48 ASSERT(hasTagName(buttonTag));
49 }
50
create(const QualifiedName & tagName,Document * document,HTMLFormElement * form)51 PassRefPtr<HTMLButtonElement> HTMLButtonElement::create(const QualifiedName& tagName, Document* document, HTMLFormElement* form)
52 {
53 return adoptRef(new HTMLButtonElement(tagName, document, form));
54 }
55
createRenderer(RenderArena * arena,RenderStyle *)56 RenderObject* HTMLButtonElement::createRenderer(RenderArena* arena, RenderStyle*)
57 {
58 return new (arena) RenderButton(this);
59 }
60
formControlType() const61 const AtomicString& HTMLButtonElement::formControlType() const
62 {
63 switch (m_type) {
64 case SUBMIT: {
65 DEFINE_STATIC_LOCAL(const AtomicString, submit, ("submit"));
66 return submit;
67 }
68 case BUTTON: {
69 DEFINE_STATIC_LOCAL(const AtomicString, button, ("button"));
70 return button;
71 }
72 case RESET: {
73 DEFINE_STATIC_LOCAL(const AtomicString, reset, ("reset"));
74 return reset;
75 }
76 }
77
78 ASSERT_NOT_REACHED();
79 return emptyAtom;
80 }
81
parseMappedAttribute(Attribute * attr)82 void HTMLButtonElement::parseMappedAttribute(Attribute* attr)
83 {
84 if (attr->name() == typeAttr) {
85 if (equalIgnoringCase(attr->value(), "reset"))
86 m_type = RESET;
87 else if (equalIgnoringCase(attr->value(), "button"))
88 m_type = BUTTON;
89 else
90 m_type = SUBMIT;
91 setNeedsWillValidateCheck();
92 } else if (attr->name() == alignAttr) {
93 // Don't map 'align' attribute. This matches what Firefox and IE do, but not Opera.
94 // See http://bugs.webkit.org/show_bug.cgi?id=12071
95 } else
96 HTMLFormControlElement::parseMappedAttribute(attr);
97 }
98
defaultEventHandler(Event * event)99 void HTMLButtonElement::defaultEventHandler(Event* event)
100 {
101 if (event->type() == eventNames().DOMActivateEvent && !disabled()) {
102 if (form() && m_type == SUBMIT) {
103 m_isActivatedSubmit = true;
104 form()->prepareForSubmission(event);
105 m_isActivatedSubmit = false; // Do this in case submission was canceled.
106 }
107 if (form() && m_type == RESET)
108 form()->reset();
109 }
110
111 if (event->isKeyboardEvent()) {
112 if (event->type() == eventNames().keydownEvent && static_cast<KeyboardEvent*>(event)->keyIdentifier() == "U+0020") {
113 setActive(true, true);
114 // No setDefaultHandled() - IE dispatches a keypress in this case.
115 return;
116 }
117 if (event->type() == eventNames().keypressEvent) {
118 switch (static_cast<KeyboardEvent*>(event)->charCode()) {
119 case '\r':
120 dispatchSimulatedClick(event);
121 event->setDefaultHandled();
122 return;
123 case ' ':
124 // Prevent scrolling down the page.
125 event->setDefaultHandled();
126 return;
127 }
128 }
129 if (event->type() == eventNames().keyupEvent && static_cast<KeyboardEvent*>(event)->keyIdentifier() == "U+0020") {
130 if (active())
131 dispatchSimulatedClick(event);
132 event->setDefaultHandled();
133 return;
134 }
135 }
136
137 HTMLFormControlElement::defaultEventHandler(event);
138 }
139
isSuccessfulSubmitButton() const140 bool HTMLButtonElement::isSuccessfulSubmitButton() const
141 {
142 // HTML spec says that buttons must have names to be considered successful.
143 // However, other browsers do not impose this constraint.
144 return m_type == SUBMIT && !disabled();
145 }
146
isActivatedSubmit() const147 bool HTMLButtonElement::isActivatedSubmit() const
148 {
149 return m_isActivatedSubmit;
150 }
151
setActivatedSubmit(bool flag)152 void HTMLButtonElement::setActivatedSubmit(bool flag)
153 {
154 m_isActivatedSubmit = flag;
155 }
156
appendFormData(FormDataList & formData,bool)157 bool HTMLButtonElement::appendFormData(FormDataList& formData, bool)
158 {
159 if (m_type != SUBMIT || name().isEmpty() || !m_isActivatedSubmit)
160 return false;
161 formData.appendData(name(), value());
162 return true;
163 }
164
accessKeyAction(bool sendToAnyElement)165 void HTMLButtonElement::accessKeyAction(bool sendToAnyElement)
166 {
167 focus();
168 // send the mouse button events iff the caller specified sendToAnyElement
169 dispatchSimulatedClick(0, sendToAnyElement);
170 }
171
isURLAttribute(Attribute * attr) const172 bool HTMLButtonElement::isURLAttribute(Attribute* attr) const
173 {
174 return attr->name() == formactionAttr;
175 }
176
value() const177 String HTMLButtonElement::value() const
178 {
179 return getAttribute(valueAttr);
180 }
181
recalcWillValidate() const182 bool HTMLButtonElement::recalcWillValidate() const
183 {
184 return m_type == SUBMIT && HTMLFormControlElement::recalcWillValidate();
185 }
186
187 } // namespace
188