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 39namespace WebCore { 40 41using namespace HTMLNames; 42 43inline 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 51PassRefPtr<HTMLButtonElement> HTMLButtonElement::create(const QualifiedName& tagName, Document* document, HTMLFormElement* form) 52{ 53 return adoptRef(new HTMLButtonElement(tagName, document, form)); 54} 55 56void HTMLButtonElement::setType(const AtomicString& type) 57{ 58 setAttribute(typeAttr, type); 59} 60 61RenderObject* HTMLButtonElement::createRenderer(RenderArena* arena, RenderStyle*) 62{ 63 return new (arena) RenderButton(this); 64} 65 66const AtomicString& HTMLButtonElement::formControlType() const 67{ 68 switch (m_type) { 69 case SUBMIT: { 70 DEFINE_STATIC_LOCAL(const AtomicString, submit, ("submit", AtomicString::ConstructFromLiteral)); 71 return submit; 72 } 73 case BUTTON: { 74 DEFINE_STATIC_LOCAL(const AtomicString, button, ("button", AtomicString::ConstructFromLiteral)); 75 return button; 76 } 77 case RESET: { 78 DEFINE_STATIC_LOCAL(const AtomicString, reset, ("reset", AtomicString::ConstructFromLiteral)); 79 return reset; 80 } 81 } 82 83 ASSERT_NOT_REACHED(); 84 return emptyAtom; 85} 86 87bool HTMLButtonElement::isPresentationAttribute(const QualifiedName& name) const 88{ 89 if (name == alignAttr) { 90 // Don't map 'align' attribute. This matches what Firefox and IE do, but not Opera. 91 // See http://bugs.webkit.org/show_bug.cgi?id=12071 92 return false; 93 } 94 95 return HTMLFormControlElement::isPresentationAttribute(name); 96} 97 98void HTMLButtonElement::parseAttribute(const QualifiedName& name, const AtomicString& value) 99{ 100 if (name == typeAttr) { 101 if (equalIgnoringCase(value, "reset")) 102 m_type = RESET; 103 else if (equalIgnoringCase(value, "button")) 104 m_type = BUTTON; 105 else 106 m_type = SUBMIT; 107 setNeedsWillValidateCheck(); 108 } else 109 HTMLFormControlElement::parseAttribute(name, value); 110} 111 112void HTMLButtonElement::defaultEventHandler(Event* event) 113{ 114 if (event->type() == eventNames().DOMActivateEvent && !isDisabledFormControl()) { 115 if (form() && m_type == SUBMIT) { 116 m_isActivatedSubmit = true; 117 form()->prepareForSubmission(event); 118 event->setDefaultHandled(); 119 m_isActivatedSubmit = false; // Do this in case submission was canceled. 120 } 121 if (form() && m_type == RESET) { 122 form()->reset(); 123 event->setDefaultHandled(); 124 } 125 } 126 127 if (event->isKeyboardEvent()) { 128 if (event->type() == eventNames().keydownEvent && static_cast<KeyboardEvent*>(event)->keyIdentifier() == "U+0020") { 129 setActive(true, true); 130 // No setDefaultHandled() - IE dispatches a keypress in this case. 131 return; 132 } 133 if (event->type() == eventNames().keypressEvent) { 134 switch (static_cast<KeyboardEvent*>(event)->charCode()) { 135 case '\r': 136 dispatchSimulatedClick(event); 137 event->setDefaultHandled(); 138 return; 139 case ' ': 140 // Prevent scrolling down the page. 141 event->setDefaultHandled(); 142 return; 143 } 144 } 145 if (event->type() == eventNames().keyupEvent && static_cast<KeyboardEvent*>(event)->keyIdentifier() == "U+0020") { 146 if (active()) 147 dispatchSimulatedClick(event); 148 event->setDefaultHandled(); 149 return; 150 } 151 } 152 153 HTMLFormControlElement::defaultEventHandler(event); 154} 155 156bool HTMLButtonElement::willRespondToMouseClickEvents() 157{ 158 if (!isDisabledFormControl() && form() && (m_type == SUBMIT || m_type == RESET)) 159 return true; 160 return HTMLFormControlElement::willRespondToMouseClickEvents(); 161} 162 163bool HTMLButtonElement::isSuccessfulSubmitButton() const 164{ 165 // HTML spec says that buttons must have names to be considered successful. 166 // However, other browsers do not impose this constraint. 167 return m_type == SUBMIT && !isDisabledFormControl(); 168} 169 170bool HTMLButtonElement::isActivatedSubmit() const 171{ 172 return m_isActivatedSubmit; 173} 174 175void HTMLButtonElement::setActivatedSubmit(bool flag) 176{ 177 m_isActivatedSubmit = flag; 178} 179 180bool HTMLButtonElement::appendFormData(FormDataList& formData, bool) 181{ 182 if (m_type != SUBMIT || name().isEmpty() || !m_isActivatedSubmit) 183 return false; 184 formData.appendData(name(), value()); 185 return true; 186} 187 188void HTMLButtonElement::accessKeyAction(bool sendMouseEvents) 189{ 190 focus(); 191 192 dispatchSimulatedClick(0, sendMouseEvents ? SendMouseUpDownEvents : SendNoEvents); 193} 194 195bool HTMLButtonElement::isURLAttribute(const Attribute& attribute) const 196{ 197 return attribute.name() == formactionAttr || HTMLFormControlElement::isURLAttribute(attribute); 198} 199 200String HTMLButtonElement::value() const 201{ 202 return getAttribute(valueAttr); 203} 204 205bool HTMLButtonElement::recalcWillValidate() const 206{ 207 return m_type == SUBMIT && HTMLFormControlElement::recalcWillValidate(); 208} 209 210} // namespace 211