1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 * (C) 1999 Antti Koivisto (koivisto (at) kde.org) 4 * (C) 2001 Dirk Mueller (mueller (at) kde.org) 5 * (C) 2006 Alexey Proskuryakov (ap (at) nypop.com) 6 * Copyright (C) 2004, 2005, 2006, 2010 Apple Inc. All rights reserved. 7 * Copyright (C) 2010 Google Inc. All rights reserved. 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 "HTMLOptionElement.h" 28 29 #include "Attribute.h" 30 #include "CSSStyleSelector.h" 31 #include "Document.h" 32 #include "ExceptionCode.h" 33 #include "HTMLNames.h" 34 #include "HTMLSelectElement.h" 35 #include "NodeRenderStyle.h" 36 #include "RenderMenuList.h" 37 #include "Text.h" 38 #include <wtf/StdLibExtras.h> 39 #include <wtf/Vector.h> 40 41 namespace WebCore { 42 43 using namespace HTMLNames; 44 45 HTMLOptionElement::HTMLOptionElement(const QualifiedName& tagName, Document* document, HTMLFormElement* form) 46 : HTMLFormControlElement(tagName, document, form) 47 { 48 ASSERT(hasTagName(optionTag)); 49 } 50 51 PassRefPtr<HTMLOptionElement> HTMLOptionElement::create(Document* document, HTMLFormElement* form) 52 { 53 return adoptRef(new HTMLOptionElement(optionTag, document, form)); 54 } 55 56 PassRefPtr<HTMLOptionElement> HTMLOptionElement::create(const QualifiedName& tagName, Document* document, HTMLFormElement* form) 57 { 58 return adoptRef(new HTMLOptionElement(tagName, document, form)); 59 } 60 61 PassRefPtr<HTMLOptionElement> HTMLOptionElement::createForJSConstructor(Document* document, const String& data, const String& value, 62 bool defaultSelected, bool selected, ExceptionCode& ec) 63 { 64 RefPtr<HTMLOptionElement> element = adoptRef(new HTMLOptionElement(optionTag, document)); 65 66 RefPtr<Text> text = Text::create(document, data.isNull() ? "" : data); 67 68 ec = 0; 69 element->appendChild(text.release(), ec); 70 if (ec) 71 return 0; 72 73 if (!value.isNull()) 74 element->setValue(value); 75 element->setDefaultSelected(defaultSelected); 76 element->setSelected(selected); 77 78 return element.release(); 79 } 80 81 void HTMLOptionElement::attach() 82 { 83 if (parentNode()->renderStyle()) 84 setRenderStyle(styleForRenderer()); 85 HTMLFormControlElement::attach(); 86 } 87 88 void HTMLOptionElement::detach() 89 { 90 m_style.clear(); 91 HTMLFormControlElement::detach(); 92 } 93 94 bool HTMLOptionElement::supportsFocus() const 95 { 96 return HTMLElement::supportsFocus(); 97 } 98 99 bool HTMLOptionElement::isFocusable() const 100 { 101 // Option elements do not have a renderer so we check the renderStyle instead. 102 return supportsFocus() && renderStyle() && renderStyle()->display() != NONE; 103 } 104 105 const AtomicString& HTMLOptionElement::formControlType() const 106 { 107 DEFINE_STATIC_LOCAL(const AtomicString, option, ("option")); 108 return option; 109 } 110 111 String HTMLOptionElement::text() const 112 { 113 return OptionElement::collectOptionLabelOrText(m_data, this); 114 } 115 116 void HTMLOptionElement::setText(const String &text, ExceptionCode& ec) 117 { 118 // Handle the common special case where there's exactly 1 child node, and it's a text node. 119 Node* child = firstChild(); 120 if (child && child->isTextNode() && !child->nextSibling()) { 121 static_cast<Text *>(child)->setData(text, ec); 122 return; 123 } 124 125 removeChildren(); 126 appendChild(Text::create(document(), text), ec); 127 } 128 129 void HTMLOptionElement::accessKeyAction(bool) 130 { 131 HTMLSelectElement* select = ownerSelectElement(); 132 if (select) 133 select->accessKeySetSelectedIndex(index()); 134 } 135 136 int HTMLOptionElement::index() const 137 { 138 return OptionElement::optionIndex(ownerSelectElement(), this); 139 } 140 141 void HTMLOptionElement::parseMappedAttribute(Attribute* attr) 142 { 143 if (attr->name() == selectedAttr) 144 m_data.setSelected(!attr->isNull()); 145 else if (attr->name() == valueAttr) 146 m_data.setValue(attr->value()); 147 else if (attr->name() == labelAttr) 148 m_data.setLabel(attr->value()); 149 else 150 HTMLFormControlElement::parseMappedAttribute(attr); 151 } 152 153 String HTMLOptionElement::value() const 154 { 155 return OptionElement::collectOptionValue(m_data, this); 156 } 157 158 void HTMLOptionElement::setValue(const String& value) 159 { 160 setAttribute(valueAttr, value); 161 } 162 163 bool HTMLOptionElement::selected() const 164 { 165 if (HTMLSelectElement* select = ownerSelectElement()) 166 select->recalcListItemsIfNeeded(); 167 return m_data.selected(); 168 } 169 170 void HTMLOptionElement::setSelected(bool selected) 171 { 172 if (m_data.selected() == selected) 173 return; 174 175 OptionElement::setSelectedState(m_data, this, selected); 176 177 if (HTMLSelectElement* select = ownerSelectElement()) 178 select->setSelectedIndex(selected ? index() : -1, false); 179 } 180 181 void HTMLOptionElement::setSelectedState(bool selected) 182 { 183 OptionElement::setSelectedState(m_data, this, selected); 184 } 185 186 void HTMLOptionElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta) 187 { 188 HTMLSelectElement* select = ownerSelectElement(); 189 if (select) 190 select->childrenChanged(changedByParser); 191 HTMLFormControlElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta); 192 } 193 194 HTMLSelectElement* HTMLOptionElement::ownerSelectElement() const 195 { 196 ContainerNode* select = parentNode(); 197 while (select && !select->hasTagName(selectTag)) 198 select = select->parentNode(); 199 200 if (!select) 201 return 0; 202 203 return static_cast<HTMLSelectElement*>(select); 204 } 205 206 bool HTMLOptionElement::defaultSelected() const 207 { 208 return fastHasAttribute(selectedAttr); 209 } 210 211 void HTMLOptionElement::setDefaultSelected(bool b) 212 { 213 setAttribute(selectedAttr, b ? "" : 0); 214 } 215 216 String HTMLOptionElement::label() const 217 { 218 return m_data.label(); 219 } 220 221 void HTMLOptionElement::setRenderStyle(PassRefPtr<RenderStyle> newStyle) 222 { 223 m_style = newStyle; 224 if (HTMLSelectElement* select = ownerSelectElement()) 225 if (RenderObject* renderer = select->renderer()) 226 renderer->repaint(); 227 } 228 229 RenderStyle* HTMLOptionElement::nonRendererRenderStyle() const 230 { 231 return m_style.get(); 232 } 233 234 String HTMLOptionElement::textIndentedToRespectGroupLabel() const 235 { 236 return OptionElement::collectOptionTextRespectingGroupLabel(m_data, this); 237 } 238 239 bool HTMLOptionElement::disabled() const 240 { 241 return ownElementDisabled() || (parentNode() && static_cast<HTMLFormControlElement*>(parentNode())->disabled()); 242 } 243 244 void HTMLOptionElement::insertedIntoTree(bool deep) 245 { 246 if (HTMLSelectElement* select = ownerSelectElement()) { 247 select->setRecalcListItems(); 248 // Avoid our selected() getter since it will recalculate list items incorrectly for us. 249 if (m_data.selected()) 250 select->setSelectedIndex(index(), false); 251 select->scrollToSelection(); 252 } 253 254 HTMLFormControlElement::insertedIntoTree(deep); 255 } 256 257 } // namespace 258
