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, 2008, 2010 Apple Inc. All rights reserved. 6 * (C) 2006 Alexey Proskuryakov (ap@nypop.com) 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Library General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Library General Public License for more details. 17 * 18 * You should have received a copy of the GNU Library General Public License 19 * along with this library; see the file COPYING.LIB. If not, write to 20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 21 * Boston, MA 02110-1301, USA. 22 * 23 */ 24 25#include "config.h" 26#include "HTMLOptGroupElement.h" 27 28#include "Document.h" 29#include "HTMLNames.h" 30#include "HTMLSelectElement.h" 31#include "RenderMenuList.h" 32#include "NodeRenderStyle.h" 33#include "StyleResolver.h" 34#include <wtf/StdLibExtras.h> 35 36namespace WebCore { 37 38using namespace HTMLNames; 39 40inline HTMLOptGroupElement::HTMLOptGroupElement(const QualifiedName& tagName, Document& document) 41 : HTMLElement(tagName, document) 42{ 43 ASSERT(hasTagName(optgroupTag)); 44 setHasCustomStyleResolveCallbacks(); 45} 46 47PassRefPtr<HTMLOptGroupElement> HTMLOptGroupElement::create(const QualifiedName& tagName, Document& document) 48{ 49 return adoptRef(new HTMLOptGroupElement(tagName, document)); 50} 51 52bool HTMLOptGroupElement::isDisabledFormControl() const 53{ 54 return fastHasAttribute(disabledAttr); 55} 56 57bool HTMLOptGroupElement::isFocusable() const 58{ 59 // Optgroup elements do not have a renderer so we check the renderStyle instead. 60 return supportsFocus() && renderStyle() && renderStyle()->display() != NONE; 61} 62 63const AtomicString& HTMLOptGroupElement::formControlType() const 64{ 65 DEPRECATED_DEFINE_STATIC_LOCAL(const AtomicString, optgroup, ("optgroup", AtomicString::ConstructFromLiteral)); 66 return optgroup; 67} 68 69void HTMLOptGroupElement::childrenChanged(const ChildChange& change) 70{ 71 recalcSelectOptions(); 72 HTMLElement::childrenChanged(change); 73} 74 75void HTMLOptGroupElement::parseAttribute(const QualifiedName& name, const AtomicString& value) 76{ 77 HTMLElement::parseAttribute(name, value); 78 recalcSelectOptions(); 79 80 if (name == disabledAttr) 81 didAffectSelector(AffectedSelectorDisabled | AffectedSelectorEnabled); 82} 83 84void HTMLOptGroupElement::recalcSelectOptions() 85{ 86 ContainerNode* select = parentNode(); 87 while (select && !select->hasTagName(selectTag)) 88 select = select->parentNode(); 89 if (select) 90 toHTMLSelectElement(select)->setRecalcListItems(); 91} 92 93void HTMLOptGroupElement::didAttachRenderers() 94{ 95 // If after attaching nothing called styleForRenderer() on this node we 96 // manually cache the value. This happens if our parent doesn't have a 97 // renderer like <optgroup> or if it doesn't allow children like <select>. 98 if (!m_style && parentNode()->renderStyle()) 99 updateNonRenderStyle(*parentNode()->renderStyle()); 100} 101 102void HTMLOptGroupElement::willDetachRenderers() 103{ 104 m_style.clear(); 105} 106 107void HTMLOptGroupElement::updateNonRenderStyle(RenderStyle& parentStyle) 108{ 109 m_style = document().ensureStyleResolver().styleForElement(this, &parentStyle); 110} 111 112RenderStyle* HTMLOptGroupElement::nonRendererStyle() const 113{ 114 return m_style.get(); 115} 116 117PassRefPtr<RenderStyle> HTMLOptGroupElement::customStyleForRenderer(RenderStyle& parentStyle) 118{ 119 // styleForRenderer is called whenever a new style should be associated 120 // with an Element so now is a good time to update our cached style. 121 updateNonRenderStyle(parentStyle); 122 return m_style; 123} 124 125String HTMLOptGroupElement::groupLabelText() const 126{ 127 String itemText = document().displayStringModifiedByEncoding(getAttribute(labelAttr)); 128 129 // In WinIE, leading and trailing whitespace is ignored in options and optgroups. We match this behavior. 130 itemText = itemText.stripWhiteSpace(); 131 // We want to collapse our whitespace too. This will match other browsers. 132 itemText = itemText.simplifyWhiteSpace(); 133 134 return itemText; 135} 136 137HTMLSelectElement* HTMLOptGroupElement::ownerSelectElement() const 138{ 139 ContainerNode* select = parentNode(); 140 while (select && !select->hasTagName(selectTag)) 141 select = select->parentNode(); 142 143 if (!select) 144 return 0; 145 146 return toHTMLSelectElement(select); 147} 148 149void HTMLOptGroupElement::accessKeyAction(bool) 150{ 151 HTMLSelectElement* select = ownerSelectElement(); 152 // send to the parent to bring focus to the list box 153 if (select && !select->focused()) 154 select->accessKeyAction(false); 155} 156 157} // namespace 158