| Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 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, 2006, 2007, 2008, 2010 Apple Inc. All rights reserved. |
| 6 | * |
| 7 | * This library is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Library General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This library is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Library General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Library General Public License |
| 18 | * along with this library; see the file COPYING.LIB. If not, write to |
| 19 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 20 | * Boston, MA 02110-1301, USA. |
| 21 | */ |
| 22 | |
| 23 | #include "config.h" |
| 24 | #include "core/dom/LiveNodeList.h" |
| 25 | |
| 26 | #include "core/dom/Document.h" |
| 27 | #include "core/dom/Element.h" |
| Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 28 | #include "core/html/HTMLCollection.h" |
| 29 | |
| 30 | namespace WebCore { |
| 31 | |
| 32 | Node* LiveNodeListBase::rootNode() const |
| 33 | { |
| 34 | if (isRootedAtDocument() && m_ownerNode->inDocument()) |
| 35 | return m_ownerNode->document(); |
| 36 | return m_ownerNode.get(); |
| 37 | } |
| 38 | |
| 39 | ContainerNode* LiveNodeListBase::rootContainerNode() const |
| 40 | { |
| 41 | Node* rootNode = this->rootNode(); |
| 42 | if (!rootNode->isContainerNode()) |
| 43 | return 0; |
| 44 | return toContainerNode(rootNode); |
| 45 | } |
| 46 | |
| 47 | void LiveNodeListBase::invalidateCache() const |
| 48 | { |
| 49 | m_cachedItem = 0; |
| 50 | m_isLengthCacheValid = false; |
| 51 | m_isItemCacheValid = false; |
| 52 | m_isNameCacheValid = false; |
| 53 | m_isItemRefElementsCacheValid = false; |
| 54 | if (isNodeList(type())) |
| 55 | return; |
| 56 | |
| 57 | const HTMLCollection* cacheBase = static_cast<const HTMLCollection*>(this); |
| 58 | cacheBase->m_idCache.clear(); |
| 59 | cacheBase->m_nameCache.clear(); |
| 60 | cacheBase->m_cachedElementsArrayOffset = 0; |
| 61 | } |
| 62 | |
| 63 | void LiveNodeListBase::invalidateIdNameCacheMaps() const |
| 64 | { |
| 65 | ASSERT(hasIdNameCache()); |
| 66 | const HTMLCollection* cacheBase = static_cast<const HTMLCollection*>(this); |
| 67 | cacheBase->m_idCache.clear(); |
| 68 | cacheBase->m_nameCache.clear(); |
| 69 | } |
| 70 | |
| Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 71 | Node* LiveNodeList::namedItem(const AtomicString& elementId) const |
| 72 | { |
| 73 | Node* rootNode = this->rootNode(); |
| 74 | |
| 75 | if (rootNode->inDocument()) { |
| 76 | Element* element = rootNode->treeScope()->getElementById(elementId); |
| 77 | if (element && nodeMatches(element) && element->isDescendantOf(rootNode)) |
| 78 | return element; |
| 79 | if (!element) |
| 80 | return 0; |
| 81 | // In the case of multiple nodes with the same name, just fall through. |
| 82 | } |
| 83 | |
| 84 | unsigned length = this->length(); |
| 85 | for (unsigned i = 0; i < length; i++) { |
| 86 | Node* node = item(i); |
| 87 | // FIXME: This should probably be using getIdAttribute instead of idForStyleResolution. |
| 88 | if (node->hasID() && toElement(node)->idForStyleResolution() == elementId) |
| 89 | return node; |
| 90 | } |
| 91 | |
| 92 | return 0; |
| 93 | } |
| 94 | |
| 95 | } // namespace WebCore |