SelectorQuery* SelectorQueryCache::add(const AtomicString& selectors, Document* document, ExceptionCode& ec)
{
HashMap<AtomicString, OwnPtr<SelectorQuery> >::iterator it = m_entries.find(selectors);
if (it != m_entries.end())
return it->value.get();
CSSParser parser(document);
CSSSelectorList selectorList;
parser.parseSelector(selectors, selectorList);
if (!selectorList.first() || selectorList.hasInvalidSelector()) {
ec = SYNTAX_ERR;
return 0;
}
// throw a NAMESPACE_ERR if the selector includes any namespace prefixes.
if (selectorList.selectorsNeedNamespaceResolution()) {
ec = NAMESPACE_ERR;
return 0;
}
const int maximumSelectorQueryCacheSize = 256;
if (m_entries.size() == maximumSelectorQueryCacheSize)
m_entries.remove(m_entries.begin());
OwnPtr<SelectorQuery> selectorQuery = adoptPtr(new SelectorQuery(selectorList));
SelectorQuery* rawSelectorQuery = selectorQuery.get();
m_entries.add(selectors, selectorQuery.release());
return rawSelectorQuery;
}
SelectorQuery* SelectorQueryCache::add(const AtomicString& selectors, const Document& document, ExceptionState& exceptionState)
{
HashMap<AtomicString, OwnPtr<SelectorQuery> >::iterator it = m_entries.find(selectors);
if (it != m_entries.end())
return it->value.get();
BisonCSSParser parser(CSSParserContext(document, 0));
CSSSelectorList selectorList;
parser.parseSelector(selectors, selectorList);
if (!selectorList.first()) {
exceptionState.throwDOMException(SyntaxError, "'" + selectors + "' is not a valid selector.");
return 0;
}
// throw a NamespaceError if the selector includes any namespace prefixes.
if (selectorList.selectorsNeedNamespaceResolution()) {
exceptionState.throwDOMException(NamespaceError, "'" + selectors + "' contains namespaces, which are not supported.");
return 0;
}
const unsigned maximumSelectorQueryCacheSize = 256;
if (m_entries.size() == maximumSelectorQueryCacheSize)
m_entries.remove(m_entries.begin());
OwnPtr<SelectorQuery> selectorQuery = adoptPtr(new SelectorQuery(selectorList));
SelectorQuery* rawSelectorQuery = selectorQuery.get();
m_entries.add(selectors, selectorQuery.release());
return rawSelectorQuery;
}
SelectorQuery* SelectorQueryCache::add(const String& selectors, Document& document, ExceptionCode& ec)
{
auto it = m_entries.find(selectors);
if (it != m_entries.end())
return it->value.get();
CSSParser parser(document);
CSSSelectorList selectorList;
parser.parseSelector(selectors, selectorList);
if (!selectorList.first() || selectorList.hasInvalidSelector()) {
ec = SYNTAX_ERR;
return nullptr;
}
// Throw a NAMESPACE_ERR if the selector includes any namespace prefixes.
if (selectorList.selectorsNeedNamespaceResolution()) {
ec = NAMESPACE_ERR;
return nullptr;
}
const int maximumSelectorQueryCacheSize = 256;
if (m_entries.size() == maximumSelectorQueryCacheSize)
m_entries.remove(m_entries.begin());
return m_entries.add(selectors, std::make_unique<SelectorQuery>(std::move(selectorList))).iterator->value.get();
}
