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 "core/html/HTMLMapElement.h" 24 25#include "HTMLNames.h" 26#include "core/dom/Document.h" 27#include "core/dom/ElementTraversal.h" 28#include "core/html/HTMLAreaElement.h" 29#include "core/html/HTMLCollection.h" 30#include "core/html/HTMLImageElement.h" 31#include "core/rendering/HitTestResult.h" 32 33using namespace std; 34 35namespace WebCore { 36 37using namespace HTMLNames; 38 39HTMLMapElement::HTMLMapElement(Document& document) 40 : HTMLElement(mapTag, document) 41{ 42 ScriptWrappable::init(this); 43} 44 45PassRefPtr<HTMLMapElement> HTMLMapElement::create(Document& document) 46{ 47 return adoptRef(new HTMLMapElement(document)); 48} 49 50HTMLMapElement::~HTMLMapElement() 51{ 52} 53 54bool HTMLMapElement::mapMouseEvent(LayoutPoint location, const LayoutSize& size, HitTestResult& result) 55{ 56 HTMLAreaElement* defaultArea = 0; 57 Element* element = this; 58 while ((element = ElementTraversal::next(*element, this))) { 59 if (isHTMLAreaElement(element)) { 60 HTMLAreaElement* areaElt = toHTMLAreaElement(element); 61 if (areaElt->isDefault()) { 62 if (!defaultArea) 63 defaultArea = areaElt; 64 } else if (areaElt->mapMouseEvent(location, size, result)) 65 return true; 66 } 67 } 68 69 if (defaultArea) { 70 result.setInnerNode(defaultArea); 71 result.setURLElement(defaultArea); 72 } 73 return defaultArea; 74} 75 76HTMLImageElement* HTMLMapElement::imageElement() 77{ 78 RefPtr<HTMLCollection> images = document().images(); 79 for (unsigned i = 0; Node* curr = images->item(i); i++) { 80 if (!curr->hasTagName(imgTag)) 81 continue; 82 83 // The HTMLImageElement's useMap() value includes the '#' symbol at the beginning, 84 // which has to be stripped off. 85 HTMLImageElement* imageElement = toHTMLImageElement(curr); 86 String useMapName = imageElement->getAttribute(usemapAttr).string().substring(1); 87 if (equalIgnoringCase(useMapName, m_name)) 88 return imageElement; 89 } 90 91 return 0; 92} 93 94void HTMLMapElement::parseAttribute(const QualifiedName& name, const AtomicString& value) 95{ 96 // FIXME: This logic seems wrong for XML documents. 97 // Either the id or name will be used depending on the order the attributes are parsed. 98 99 if (isIdAttributeName(name) || name == nameAttr) { 100 if (isIdAttributeName(name)) { 101 // Call base class so that hasID bit gets set. 102 HTMLElement::parseAttribute(name, value); 103 if (document().isHTMLDocument()) 104 return; 105 } 106 if (inDocument()) 107 treeScope().removeImageMap(this); 108 String mapName = value; 109 if (mapName[0] == '#') 110 mapName = mapName.substring(1); 111 m_name = document().isHTMLDocument() ? mapName.lower() : mapName; 112 if (inDocument()) 113 treeScope().addImageMap(this); 114 115 return; 116 } 117 118 HTMLElement::parseAttribute(name, value); 119} 120 121PassRefPtr<HTMLCollection> HTMLMapElement::areas() 122{ 123 return ensureCachedHTMLCollection(MapAreas); 124} 125 126Node::InsertionNotificationRequest HTMLMapElement::insertedInto(ContainerNode* insertionPoint) 127{ 128 if (insertionPoint->inDocument()) 129 treeScope().addImageMap(this); 130 return HTMLElement::insertedInto(insertionPoint); 131} 132 133void HTMLMapElement::removedFrom(ContainerNode* insertionPoint) 134{ 135 if (insertionPoint->inDocument()) 136 treeScope().removeImageMap(this); 137 HTMLElement::removedFrom(insertionPoint); 138} 139 140} 141