void Internals::setFormControlStateOfPreviousHistoryItem(PassRefPtr<DOMStringList> state, ExceptionCode& ec)
{
HistoryItem* mainItem = frame()->loader()->history()->previousItem();
if (!state || !mainItem) {
ec = INVALID_ACCESS_ERR;
return;
}
String uniqueName = frame()->tree()->uniqueName();
if (mainItem->target() == uniqueName)
mainItem->setDocumentState(*state.get());
else if (HistoryItem* subItem = mainItem->childItemWithTarget(uniqueName))
subItem->setDocumentState(*state.get());
else
ec = INVALID_ACCESS_ERR;
}
// Does a non-recursive check that this item and its immediate children have the
// same frames as the other item.
bool HistoryItem::hasSameFrames(HistoryItem& otherItem) const
{
if (target() != otherItem.target())
return false;
if (children().size() != otherItem.children().size())
return false;
for (size_t i = 0; i < children().size(); i++) {
if (!otherItem.childItemWithTarget(children()[i]->target()))
return false;
}
return true;
}
PassRefPtr<DOMStringList> Internals::formControlStateOfPreviousHistoryItem(ExceptionCode& ec)
{
HistoryItem* mainItem = frame()->loader()->history()->previousItem();
if (!mainItem) {
ec = INVALID_ACCESS_ERR;
return 0;
}
String uniqueName = frame()->tree()->uniqueName();
if (mainItem->target() != uniqueName && !mainItem->childItemWithTarget(uniqueName)) {
ec = INVALID_ACCESS_ERR;
return 0;
}
const Vector<String>& state = mainItem->target() == uniqueName ? mainItem->documentState() : mainItem->childItemWithTarget(uniqueName)->documentState();
RefPtr<DOMStringList> stringList = DOMStringList::create();
for (unsigned i = 0; i < state.size(); ++i)
stringList->append(state[i]);
return stringList.release();
}
