Make sure the rootNode of a LiveNodeListBase is always a ContainerNode

Source/core/dom/ContainerNode.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 #include "core/dom/ContainerNode.h"
 
 #include "bindings/v8/ExceptionState.h"
 #include "core/dom/ChildListMutationScope.h"
+#include "core/dom/ClassNodeList.h"
 #include "core/dom/ContainerNodeAlgorithms.h"
 #include "core/dom/ElementTraversal.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/FullscreenElementStack.h"
+#include "core/dom/NameNodeList.h"
 #include "core/dom/NodeChildRemovalTracker.h"
 #include "core/dom/NodeRareData.h"
 #include "core/dom/NodeRenderStyle.h"
 #include "core/dom/NodeTraversal.h"
 #include "core/events/MutationEvent.h"
 #include "core/events/ThreadLocalEventNames.h"
 #include "core/html/HTMLCollection.h"
+#include "core/html/RadioNodeList.h"
 #include "core/rendering/InlineTextBox.h"
 #include "core/rendering/RenderText.h"
 #include "core/rendering/RenderTheme.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/RenderWidget.h"
 
 using namespace std;
 
 namespace WebCore {
 
+using namespace HTMLNames;
+
 static void dispatchChildInsertionEvents(Node&);
 static void dispatchChildRemovalEvents(Node&);
 
 ChildNodesLazySnapshot* ChildNodesLazySnapshot::latestSnapshot = 0;
 
 #ifndef NDEBUG
 unsigned NoEventDispatchAssertion::s_count = 0;
 #endif
 
 static void collectChildrenAndRemoveFromOldParent(Node& node, NodeVector& nodes, ExceptionState& exceptionState)
@@ skipping 196 matching lines @@
     newChild.setParentOrShadowHostNode(this);
     newChild.setPreviousSibling(prev);
     newChild.setNextSibling(&nextChild);
 }
 
 void ContainerNode::parserInsertBefore(PassRefPtr<Node> newChild, Node& nextChild)
 {
     ASSERT(newChild);
     ASSERT(nextChild.parentNode() == this);
     ASSERT(!newChild->isDocumentFragment());
-    ASSERT(!hasTagName(HTMLNames::templateTag));
+    ASSERT(!hasTagName(templateTag));
 
     if (nextChild.previousSibling() == newChild || nextChild == newChild) // nothing to do
         return;
 
     if (document() != newChild->document())
         document().adoptNode(newChild.get(), ASSERT_NO_EXCEPTION);
 
     insertBeforeCommon(nextChild, *newChild);
 
     newChild->updateAncestorConnectedSubframeCountForInsertion();
@@ skipping 322 matching lines @@
     }
 
     dispatchSubtreeModifiedEvent();
 }
 
 void ContainerNode::parserAppendChild(PassRefPtr<Node> newChild)
 {
     ASSERT(newChild);
     ASSERT(!newChild->parentNode()); // Use appendChild if you need to handle reparenting (and want DOM mutation events).
     ASSERT(!newChild->isDocumentFragment());
-    ASSERT(!hasTagName(HTMLNames::templateTag));
+    ASSERT(!hasTagName(templateTag));
 
     if (document() != newChild->document())
         document().adoptNode(newChild.get(), ASSERT_NO_EXCEPTION);
 
     Node* last = m_lastChild;
     {
         NoEventDispatchAssertion assertNoEventDispatch;
         // FIXME: This method should take a PassRefPtr.
         appendChildToContainer(*newChild, *this);
         treeScope().adoptIfNeeded(*newChild);
@@ skipping 341 matching lines @@
 
     ChildListMutationScope(*this).childAdded(child);
 
     childrenChanged(false, child.previousSibling(), child.nextSibling(), 1);
 
     ChildNodeInsertionNotifier(*this).notify(child);
 
     dispatchChildInsertionEvents(child);
 }
 
+PassRefPtr<NodeList> ContainerNode::getElementsByTagName(const AtomicString& localName)
+{
+    if (localName.isNull())
+        return 0;
+
+    if (document().isHTMLDocument())
+        return ensureRareData().ensureNodeLists().addCacheWithAtomicName<HTMLTagNodeList>(this, HTMLTagNodeListType, localName);
+    return ensureRareData().ensureNodeLists().addCacheWithAtomicName<TagNodeList>(this, TagNodeListType, localName);
+}
+
+PassRefPtr<NodeList> ContainerNode::getElementsByTagNameNS(const AtomicString& namespaceURI, const AtomicString& localName)
+{
+    if (localName.isNull())
+        return 0;
+
+    if (namespaceURI == starAtom)
+        return getElementsByTagName(localName);
+
+    return ensureRareData().ensureNodeLists().addCacheWithQualifiedName(this, namespaceURI.isEmpty() ? nullAtom : namespaceURI, localName);
+}
+
+// Takes an AtomicString in argument because it is common for elements to share the same name attribute.
+// Therefore, the NameNodeList factory function expects an AtomicString type.
+PassRefPtr<NodeList> ContainerNode::getElementsByName(const AtomicString& elementName)
+{
+    return ensureRareData().ensureNodeLists().addCacheWithAtomicName<NameNodeList>(this, NameNodeListType, elementName);
+}
+
+// Takes an AtomicString in argument because it is common for elements to share the same set of class names.
+// Therefore, the ClassNodeList factory function expects an AtomicString type.
+PassRefPtr<NodeList> ContainerNode::getElementsByClassName(const AtomicString& classNames)
+{
+    return ensureRareData().ensureNodeLists().addCacheWithAtomicName<ClassNodeList>(this, ClassNodeListType, classNames);
+}
+
+PassRefPtr<RadioNodeList> ContainerNode::radioNodeList(const AtomicString& name, bool onlyMatchImgElements)
+{
+    ASSERT(hasTagName(formTag) || hasTagName(fieldsetTag));
+    CollectionType type = onlyMatchImgElements ? RadioImgNodeListType : RadioNodeListType;
+    return ensureRareData().ensureNodeLists().addCacheWithAtomicName<RadioNodeList>(this, type, name);
+}
+
 #ifndef NDEBUG
 bool childAttachedAllowedWhenAttachingChildren(ContainerNode* node)
 {
     if (node->isShadowRoot())
         return true;
 
     if (node->isInsertionPoint())
         return true;
 
     if (node->isElementNode() && toElement(node)->shadow())
         return true;
 
     return false;
 }
 #endif
 
 } // namespace WebCore