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