1/* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) 4 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2011, 2012 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 23#include "config.h" 24#include "HTMLNameCollection.h" 25 26#include "Element.h" 27#include "HTMLDocument.h" 28#include "HTMLNames.h" 29#include "HTMLObjectElement.h" 30#include "NodeRareData.h" 31#include "NodeTraversal.h" 32 33namespace WebCore { 34 35using namespace HTMLNames; 36 37HTMLNameCollection::HTMLNameCollection(Node* document, CollectionType type, const AtomicString& name) 38 : HTMLCollection(document, type, DoesNotOverrideItemAfter) 39 , m_name(name) 40{ 41} 42 43HTMLNameCollection::~HTMLNameCollection() 44{ 45 ASSERT(ownerNode()); 46 ASSERT(ownerNode()->isDocumentNode()); 47 ASSERT(type() == WindowNamedItems || type() == DocumentNamedItems); 48 49 ownerNode()->nodeLists()->removeCacheWithAtomicName(this, type(), m_name); 50} 51 52bool WindowNameCollection::nodeMatchesIfNameAttributeMatch(Element* element) 53{ 54 return element->hasTagName(imgTag) || element->hasTagName(formTag) || element->hasTagName(appletTag) 55 || element->hasTagName(embedTag) || element->hasTagName(objectTag); 56} 57 58bool WindowNameCollection::nodeMatches(Element* element, const AtomicString& name) 59{ 60 // Find only images, forms, applets, embeds and objects by name, but anything by id 61 if (nodeMatchesIfNameAttributeMatch(element) && element->getNameAttribute() == name) 62 return true; 63 return element->getIdAttribute() == name; 64} 65 66bool DocumentNameCollection::nodeMatchesIfIdAttributeMatch(Element* element) 67{ 68 // FIXME: we need to fix HTMLImageElement to update the hash map for us when name attribute has been removed. 69 return element->hasTagName(appletTag) || (element->hasTagName(objectTag) && toHTMLObjectElement(element)->isDocNamedItem()) 70 || (element->hasTagName(imgTag) && element->hasName()); 71} 72 73bool DocumentNameCollection::nodeMatchesIfNameAttributeMatch(Element* element) 74{ 75 return element->hasTagName(formTag) || element->hasTagName(embedTag) || element->hasTagName(iframeTag) 76 || element->hasTagName(appletTag) || (element->hasTagName(objectTag) && toHTMLObjectElement(element)->isDocNamedItem()) 77 || element->hasTagName(imgTag); 78} 79 80bool DocumentNameCollection::nodeMatches(Element* element, const AtomicString& name) 81{ 82 // Find images, forms, applets, embeds, objects and iframes by name, applets and object by id, and images by id 83 // but only if they have a name attribute (this very strange rule matches IE) 84 if (element->hasTagName(formTag) || element->hasTagName(embedTag) || element->hasTagName(iframeTag)) 85 return element->getNameAttribute() == name; 86 if (element->hasTagName(appletTag)) 87 return element->getNameAttribute() == name || element->getIdAttribute() == name; 88 if (element->hasTagName(objectTag)) 89 return (element->getNameAttribute() == name || element->getIdAttribute() == name) && toHTMLObjectElement(element)->isDocNamedItem(); 90 if (element->hasTagName(imgTag)) 91 return element->getNameAttribute() == name || (element->getIdAttribute() == name && element->hasName()); 92 return false; 93} 94 95} 96