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, 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 "HTMLLegendElement.h" 27 28#include "ElementIterator.h" 29#include "HTMLFieldSetElement.h" 30#include "HTMLNames.h" 31 32namespace WebCore { 33 34using namespace HTMLNames; 35 36 37inline HTMLLegendElement::HTMLLegendElement(const QualifiedName& tagName, Document& document) 38 : HTMLElement(tagName, document) 39{ 40 ASSERT(hasTagName(legendTag)); 41} 42 43PassRefPtr<HTMLLegendElement> HTMLLegendElement::create(const QualifiedName& tagName, Document& document) 44{ 45 return adoptRef(new HTMLLegendElement(tagName, document)); 46} 47 48HTMLFormControlElement* HTMLLegendElement::associatedControl() 49{ 50 // Check if there's a fieldset belonging to this legend. 51 auto enclosingFieldset = ancestorsOfType<HTMLFieldSetElement>(*this).first(); 52 if (!enclosingFieldset) 53 return nullptr; 54 55 // Find first form element inside the fieldset that is not a legend element. 56 // FIXME: Should we consider tabindex? 57 return descendantsOfType<HTMLFormControlElement>(*enclosingFieldset).first(); 58} 59 60void HTMLLegendElement::focus(bool, FocusDirection direction) 61{ 62 if (isFocusable()) 63 Element::focus(true, direction); 64 65 // To match other browsers' behavior, never restore previous selection. 66 if (HTMLFormControlElement* control = associatedControl()) 67 control->focus(false, direction); 68} 69 70void HTMLLegendElement::accessKeyAction(bool sendMouseEvents) 71{ 72 if (HTMLFormControlElement* control = associatedControl()) 73 control->accessKeyAction(sendMouseEvents); 74} 75 76HTMLFormElement* HTMLLegendElement::virtualForm() const 77{ 78 // According to the specification, If the legend has a fieldset element as 79 // its parent, then the form attribute must return the same value as the 80 // form attribute on that fieldset element. Otherwise, it must return null. 81 ContainerNode* fieldset = parentNode(); 82 if (!fieldset || !fieldset->hasTagName(fieldsetTag)) 83 return 0; 84 85 return toHTMLFieldSetElement(fieldset)->form(); 86} 87 88} // namespace 89