void CSSPreloadScanner::scan(const HTMLToken& token, bool scanningBody)
{
m_scanningBody = scanningBody;
const HTMLToken::DataVector& characters = token.characters();
for (HTMLToken::DataVector::const_iterator iter = characters.begin(); iter != characters.end() && m_state != DoneParsingImportRules; ++iter)
tokenize(*iter);
}
void CSSPreloadScanner::scan(const HTMLToken& token, bool scanningBody)
{
m_scanningBody = scanningBody;
const HTMLToken::DataVector& characters = token.characters();
for (HTMLToken::DataVector::const_iterator iter = characters.begin();
iter != characters.end(); ++iter) {
tokenize(*iter);
}
}
void TokenPreloadScanner::scan(const HTMLToken& token, Vector<std::unique_ptr<PreloadRequest>>& requests, Document& document)
{
switch (token.type()) {
case HTMLToken::Character:
if (!m_inStyle)
return;
m_cssScanner.scan(token.characters(), requests);
return;
case HTMLToken::EndTag: {
TagId tagId = tagIdFor(token.name());
#if ENABLE(TEMPLATE_ELEMENT)
if (tagId == TagId::Template) {
if (m_templateCount)
--m_templateCount;
return;
}
#endif
if (tagId == TagId::Style) {
if (m_inStyle)
m_cssScanner.reset();
m_inStyle = false;
} else if (tagId == TagId::Picture && !m_pictureSourceState.isEmpty())
m_pictureSourceState.removeLast();
return;
}
case HTMLToken::StartTag: {
#if ENABLE(TEMPLATE_ELEMENT)
if (m_templateCount)
return;
#endif
TagId tagId = tagIdFor(token.name());
#if ENABLE(TEMPLATE_ELEMENT)
if (tagId == TagId::Template) {
++m_templateCount;
return;
}
#endif
if (tagId == TagId::Style) {
m_inStyle = true;
return;
}
if (tagId == TagId::Base) {
// The first <base> element is the one that wins.
if (!m_predictedBaseElementURL.isEmpty())
return;
updatePredictedBaseURL(token);
return;
}
if (tagId == TagId::Picture) {
m_pictureSourceState.append(false);
return;
}
StartTagScanner scanner(tagId, m_deviceScaleFactor);
scanner.processAttributes(token.attributes(), document, m_pictureSourceState);
if (auto request = scanner.createPreloadRequest(m_predictedBaseElementURL))
requests.append(WTFMove(request));
return;
}
default:
return;
}
}