Have HTMLFormElement's named getter return a RadioNodeList.

Source/core/html/RadioNodeList.cpp

 /*
  * Copyright (c) 2012 Motorola Mobility, Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 19 matching lines @@
 #include "core/dom/Element.h"
 #include "core/dom/NodeRareData.h"
 #include "core/html/HTMLFormElement.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/HTMLObjectElement.h"
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
-RadioNodeList::RadioNodeList(Node* rootNode, const AtomicString& name)
-    : LiveNodeList(rootNode, RadioNodeListType, InvalidateForFormControls, rootNode->hasTagName(formTag) ? NodeListIsRootedAtDocument : NodeListIsRootedAtNode)
+RadioNodeList::RadioNodeList(Node* rootNode, const AtomicString& name, CollectionType type)
+    : LiveNodeList(rootNode, type, InvalidateForFormControls, rootNode->hasTagName(formTag) ? NodeListIsRootedAtDocument : NodeListIsRootedAtNode)
     , m_name(name)
+    , m_onlyMatchImgElements(type == RadioImgNodeListType)
 {
     ScriptWrappable::init(this);
 }
 
 RadioNodeList::~RadioNodeList()
 {
-    ownerNode()->nodeLists()->removeCacheWithAtomicName(this, RadioNodeListType, m_name);
+    ownerNode()->nodeLists()->removeCacheWithAtomicName(this, m_onlyMatchImgElements ? RadioImgNodeListType : RadioNodeListType, m_name);
 }
 
 static inline HTMLInputElement* toRadioButtonInputElement(Node* node)
 {
     ASSERT(node->isElementNode());
     if (!node->hasTagName(inputTag))
         return 0;
     HTMLInputElement* inputElement = toHTMLInputElement(node);
     if (!inputElement->isRadioButton() || inputElement->value().isEmpty())
         return 0;
     return inputElement;
 }
 
 String RadioNodeList::value() const
 {
+    if (m_onlyMatchImgElements)
+        return String();
     for (unsigned i = 0; i < length(); ++i) {
         Node* node = item(i);
         const HTMLInputElement* inputElement = toRadioButtonInputElement(node);
         if (!inputElement || !inputElement->checked())
             continue;
         return inputElement->value();
     }
     return String();
 }
 
 void RadioNodeList::setValue(const String& value)
 {
+    if (m_onlyMatchImgElements)
+        return;
     for (unsigned i = 0; i < length(); ++i) {
         Node* node = item(i);
         HTMLInputElement* inputElement = toRadioButtonInputElement(node);
         if (!inputElement || inputElement->value() != value)
             continue;
         inputElement->setChecked(true);
         return;
     }
 }
 
 bool RadioNodeList::checkElementMatchesRadioNodeListFilter(Element* testElement) const
 {
+    ASSERT(!m_onlyMatchImgElements);
     ASSERT(testElement->hasTagName(objectTag) || testElement->isFormControlElement());
     if (ownerNode()->hasTagName(formTag)) {
         HTMLFormElement* formElement = toHTMLElement(testElement)->formOwner();
         if (!formElement || formElement != ownerNode())
             return false;
     }
 
     return testElement->getIdAttribute() == m_name || testElement->getNameAttribute() == m_name;
 }
 
 bool RadioNodeList::nodeMatches(Element* testElement) const
 {
+    if (m_onlyMatchImgElements)
+        return testElement->hasTagName(imgTag);
+
     if (!testElement->hasTagName(objectTag) && !testElement->isFormControlElement())
         return false;
 
     if (testElement->hasTagName(inputTag) && toHTMLInputElement(testElement)->isImageButton())
         return false;
 
     return checkElementMatchesRadioNodeListFilter(testElement);
 }
 
-} // namspace
+} // namespace