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 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 "EventNames.h"
30 #include "FormDataList.h"
31 #include "HTMLFormElement.h"
32 #include "HTMLNames.h"
33 #include "ScriptEventListener.h"
34 #include "KeyboardEvent.h"
35 #include "MappedAttribute.h"
36 #include "RenderButton.h"
37 #include <wtf/StdLibExtras.h>
38
39 namespace WebCore {
40
41 using namespace HTMLNames;
42
HTMLButtonElement(const QualifiedName & tagName,Document * doc,HTMLFormElement * form)43 HTMLButtonElement::HTMLButtonElement(const QualifiedName& tagName, Document* doc, HTMLFormElement* form)
44 : HTMLFormControlElement(tagName, doc, form)
45 , m_type(SUBMIT)
46 , m_activeSubmit(false)
47 {
48 ASSERT(hasTagName(buttonTag));
49 }
50
~HTMLButtonElement()51 HTMLButtonElement::~HTMLButtonElement()
52 {
53 }
54
createRenderer(RenderArena * arena,RenderStyle *)55 RenderObject* HTMLButtonElement::createRenderer(RenderArena* arena, RenderStyle*)
56 {
57 return new (arena) RenderButton(this);
58 }
59
formControlType() const60 const AtomicString& HTMLButtonElement::formControlType() const
61 {
62 switch (m_type) {
63 case SUBMIT: {
64 DEFINE_STATIC_LOCAL(const AtomicString, submit, ("submit"));
65 return submit;
66 }
67 case BUTTON: {
68 DEFINE_STATIC_LOCAL(const AtomicString, button, ("button"));
69 return button;
70 }
71 case RESET: {
72 DEFINE_STATIC_LOCAL(const AtomicString, reset, ("reset"));
73 return reset;
74 }
75 }
76
77 ASSERT_NOT_REACHED();
78 return emptyAtom;
79 }
80
parseMappedAttribute(MappedAttribute * attr)81 void HTMLButtonElement::parseMappedAttribute(MappedAttribute* attr)
82 {
83 if (attr->name() == typeAttr) {
84 if (equalIgnoringCase(attr->value(), "reset"))
85 m_type = RESET;
86 else if (equalIgnoringCase(attr->value(), "button"))
87 m_type = BUTTON;
88 else
89 m_type = SUBMIT;
90 } else if (attr->name() == alignAttr) {
91 // Don't map 'align' attribute. This matches what Firefox and IE do, but not Opera.
92 // See http://bugs.webkit.org/show_bug.cgi?id=12071
93 } else if (attr->name() == onfocusAttr) {
94 setAttributeEventListener(eventNames().focusEvent, createAttributeEventListener(this, attr));
95 } else if (attr->name() == onblurAttr) {
96 setAttributeEventListener(eventNames().blurEvent, createAttributeEventListener(this, attr));
97 } else
98 HTMLFormControlElement::parseMappedAttribute(attr);
99 }
100
defaultEventHandler(Event * evt)101 void HTMLButtonElement::defaultEventHandler(Event* evt)
102 {
103 if (evt->type() == eventNames().DOMActivateEvent && !disabled()) {
104 if (form() && m_type == SUBMIT) {
105 m_activeSubmit = true;
106 form()->prepareSubmit(evt);
107 m_activeSubmit = false; // in case we were canceled
108 }
109 if (form() && m_type == RESET)
110 form()->reset();
111 }
112
113 if (evt->isKeyboardEvent()) {
114 if (evt->type() == eventNames().keydownEvent && static_cast<KeyboardEvent*>(evt)->keyIdentifier() == "U+0020") {
115 setActive(true, true);
116 // No setDefaultHandled() - IE dispatches a keypress in this case.
117 return;
118 }
119 if (evt->type() == eventNames().keypressEvent) {
120 switch (static_cast<KeyboardEvent*>(evt)->charCode()) {
121 case '\r':
122 dispatchSimulatedClick(evt);
123 evt->setDefaultHandled();
124 return;
125 case ' ':
126 // Prevent scrolling down the page.
127 evt->setDefaultHandled();
128 return;
129 default:
130 break;
131 }
132 }
133 if (evt->type() == eventNames().keyupEvent && static_cast<KeyboardEvent*>(evt)->keyIdentifier() == "U+0020") {
134 if (active())
135 dispatchSimulatedClick(evt);
136 evt->setDefaultHandled();
137 return;
138 }
139 }
140
141 HTMLFormControlElement::defaultEventHandler(evt);
142 }
143
isSuccessfulSubmitButton() const144 bool HTMLButtonElement::isSuccessfulSubmitButton() const
145 {
146 // HTML spec says that buttons must have names to be considered successful.
147 // However, other browsers do not impose this constraint.
148 return m_type == SUBMIT && !disabled();
149 }
150
isActivatedSubmit() const151 bool HTMLButtonElement::isActivatedSubmit() const
152 {
153 return m_activeSubmit;
154 }
155
setActivatedSubmit(bool flag)156 void HTMLButtonElement::setActivatedSubmit(bool flag)
157 {
158 m_activeSubmit = flag;
159 }
160
appendFormData(FormDataList & formData,bool)161 bool HTMLButtonElement::appendFormData(FormDataList& formData, bool)
162 {
163 if (m_type != SUBMIT || name().isEmpty() || !m_activeSubmit)
164 return false;
165 formData.appendData(name(), value());
166 return true;
167 }
168
accessKeyAction(bool sendToAnyElement)169 void HTMLButtonElement::accessKeyAction(bool sendToAnyElement)
170 {
171 focus();
172 // send the mouse button events iff the caller specified sendToAnyElement
173 dispatchSimulatedClick(0, sendToAnyElement);
174 }
175
accessKey() const176 String HTMLButtonElement::accessKey() const
177 {
178 return getAttribute(accesskeyAttr);
179 }
180
setAccessKey(const String & value)181 void HTMLButtonElement::setAccessKey(const String &value)
182 {
183 setAttribute(accesskeyAttr, value);
184 }
185
value() const186 String HTMLButtonElement::value() const
187 {
188 return getAttribute(valueAttr);
189 }
190
setValue(const String & value)191 void HTMLButtonElement::setValue(const String &value)
192 {
193 setAttribute(valueAttr, value);
194 }
195
196 } // namespace
197