Element* HTMLFormCollection::getNamedFormItem(const QualifiedName& attrName, const String& name, int duplicateNumber) const
{
HTMLFormElement* form = static_cast<HTMLFormElement*>(base());
bool foundInputElements = false;
for (unsigned i = 0; i < form->formElements.size(); ++i) {
HTMLFormControlElement* e = form->formElements[i];
const QualifiedName& attributeName = (attrName == idAttr) ? e->idAttributeName() : attrName;
if (e->isEnumeratable() && e->getAttribute(attributeName) == name) {
foundInputElements = true;
if (!duplicateNumber)
return e;
--duplicateNumber;
}
}
if (!foundInputElements) {
for (unsigned i = 0; i < form->imgElements.size(); ++i) {
HTMLImageElement* e = form->imgElements[i];
const QualifiedName& attributeName = (attrName == idAttr) ? e->idAttributeName() : attrName;
if (e->getAttribute(attributeName) == name) {
if (!duplicateNumber)
return e;
--duplicateNumber;
}
}
}
return 0;
}
void HTMLFormCollection::updateNameCache() const
{
if (info()->hasNameCache)
return;
HashSet<AtomicStringImpl*> foundInputElements;
HTMLFormElement* f = static_cast<HTMLFormElement*>(base());
for (unsigned i = 0; i < f->formElements.size(); ++i) {
HTMLFormControlElement* e = f->formElements[i];
if (e->isEnumeratable()) {
const AtomicString& idAttrVal = e->getAttribute(e->idAttributeName());
const AtomicString& nameAttrVal = e->getAttribute(nameAttr);
if (!idAttrVal.isEmpty()) {
// add to id cache
Vector<Element*>* idVector = info()->idCache.get(idAttrVal.impl());
if (!idVector) {
idVector = new Vector<Element*>;
info()->idCache.add(idAttrVal.impl(), idVector);
}
idVector->append(e);
foundInputElements.add(idAttrVal.impl());
}
if (!nameAttrVal.isEmpty() && idAttrVal != nameAttrVal) {
// add to name cache
Vector<Element*>* nameVector = info()->nameCache.get(nameAttrVal.impl());
if (!nameVector) {
nameVector = new Vector<Element*>;
info()->nameCache.add(nameAttrVal.impl(), nameVector);
}
nameVector->append(e);
foundInputElements.add(nameAttrVal.impl());
}
}
}
for (unsigned i = 0; i < f->imgElements.size(); ++i) {
HTMLImageElement* e = f->imgElements[i];
const AtomicString& idAttrVal = e->getAttribute(e->idAttributeName());
const AtomicString& nameAttrVal = e->getAttribute(nameAttr);
if (!idAttrVal.isEmpty() && !foundInputElements.contains(idAttrVal.impl())) {
// add to id cache
Vector<Element*>* idVector = info()->idCache.get(idAttrVal.impl());
if (!idVector) {
idVector = new Vector<Element*>;
info()->idCache.add(idAttrVal.impl(), idVector);
}
idVector->append(e);
}
if (!nameAttrVal.isEmpty() && idAttrVal != nameAttrVal && !foundInputElements.contains(nameAttrVal.impl())) {
// add to name cache
Vector<Element*>* nameVector = info()->nameCache.get(nameAttrVal.impl());
if (!nameVector) {
nameVector = new Vector<Element*>;
info()->nameCache.add(nameAttrVal.impl(), nameVector);
}
nameVector->append(e);
}
}
info()->hasNameCache = true;
}