1/* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) 4 * Copyright (C) 2004, 2005, 2006, 2007, 2010 Apple Inc. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22#include "config.h" 23#include "HTMLMapElement.h" 24 25#include "Attribute.h" 26#include "Document.h" 27#include "HTMLAreaElement.h" 28#include "HTMLCollection.h" 29#include "HTMLImageElement.h" 30#include "HTMLNames.h" 31#include "HitTestResult.h" 32#include "IntSize.h" 33#include "NodeTraversal.h" 34#include "RenderObject.h" 35 36using namespace std; 37 38namespace WebCore { 39 40using namespace HTMLNames; 41 42HTMLMapElement::HTMLMapElement(const QualifiedName& tagName, Document* document) 43 : HTMLElement(tagName, document) 44{ 45 ASSERT(hasTagName(mapTag)); 46} 47 48PassRefPtr<HTMLMapElement> HTMLMapElement::create(Document* document) 49{ 50 return adoptRef(new HTMLMapElement(mapTag, document)); 51} 52 53PassRefPtr<HTMLMapElement> HTMLMapElement::create(const QualifiedName& tagName, Document* document) 54{ 55 return adoptRef(new HTMLMapElement(tagName, document)); 56} 57 58HTMLMapElement::~HTMLMapElement() 59{ 60} 61 62bool HTMLMapElement::mapMouseEvent(LayoutPoint location, const LayoutSize& size, HitTestResult& result) 63{ 64 HTMLAreaElement* defaultArea = 0; 65 Element* element = this; 66 while ((element = ElementTraversal::next(element, this))) { 67 if (element->hasTagName(areaTag)) { 68 HTMLAreaElement* areaElt = static_cast<HTMLAreaElement*>(element); 69 if (areaElt->isDefault()) { 70 if (!defaultArea) 71 defaultArea = areaElt; 72 } else if (areaElt->mapMouseEvent(location, size, result)) 73 return true; 74 } 75 } 76 77 if (defaultArea) { 78 result.setInnerNode(defaultArea); 79 result.setURLElement(defaultArea); 80 } 81 return defaultArea; 82} 83 84HTMLImageElement* HTMLMapElement::imageElement() 85{ 86 RefPtr<HTMLCollection> images = document()->images(); 87 for (unsigned i = 0; Node* curr = images->item(i); i++) { 88 if (!curr->hasTagName(imgTag)) 89 continue; 90 91 // The HTMLImageElement's useMap() value includes the '#' symbol at the beginning, 92 // which has to be stripped off. 93 HTMLImageElement* imageElement = static_cast<HTMLImageElement*>(curr); 94 String useMapName = imageElement->getAttribute(usemapAttr).string().substring(1); 95 if (equalIgnoringCase(useMapName, m_name)) 96 return imageElement; 97 } 98 99 return 0; 100} 101 102void HTMLMapElement::parseAttribute(const QualifiedName& name, const AtomicString& value) 103{ 104 // FIXME: This logic seems wrong for XML documents. 105 // Either the id or name will be used depending on the order the attributes are parsed. 106 107 if (isIdAttributeName(name) || name == nameAttr) { 108 if (isIdAttributeName(name)) { 109 // Call base class so that hasID bit gets set. 110 HTMLElement::parseAttribute(name, value); 111 if (document()->isHTMLDocument()) 112 return; 113 } 114 if (inDocument()) 115 treeScope()->removeImageMap(this); 116 String mapName = value; 117 if (mapName[0] == '#') 118 mapName = mapName.substring(1); 119 m_name = document()->isHTMLDocument() ? mapName.lower() : mapName; 120 if (inDocument()) 121 treeScope()->addImageMap(this); 122 123 return; 124 } 125 126 HTMLElement::parseAttribute(name, value); 127} 128 129PassRefPtr<HTMLCollection> HTMLMapElement::areas() 130{ 131 return ensureCachedHTMLCollection(MapAreas); 132} 133 134Node::InsertionNotificationRequest HTMLMapElement::insertedInto(ContainerNode* insertionPoint) 135{ 136 Node::InsertionNotificationRequest request = HTMLElement::insertedInto(insertionPoint); 137 if (insertionPoint->inDocument()) 138 treeScope()->addImageMap(this); 139 return request; 140} 141 142void HTMLMapElement::removedFrom(ContainerNode* insertionPoint) 143{ 144 if (insertionPoint->inDocument()) 145 treeScope()->removeImageMap(this); 146 HTMLElement::removedFrom(insertionPoint); 147} 148 149} 150