bool CSSStyleSheet::isLoading()
{
unsigned len = length();
for (unsigned i = 0; i < len; ++i) {
CSSRule* rule = item(i);
if (rule->isImportRule() && static_cast<CSSImportRule*>(rule)->isLoading())
return true;
}
return false;
}
void CSSStyleSheet::addSubresourceStyleURLs(ListHashSet<KURL>& urls)
{
Deque<CSSStyleSheet*> styleSheetQueue;
styleSheetQueue.append(this);
while (!styleSheetQueue.isEmpty()) {
CSSStyleSheet* styleSheet = styleSheetQueue.takeFirst();
for (unsigned i = 0; i < styleSheet->length(); ++i) {
CSSRule* rule = styleSheet->item(i);
if (rule->isImportRule()) {
if (CSSStyleSheet* ruleStyleSheet = static_cast<CSSImportRule*>(rule)->styleSheet())
styleSheetQueue.append(ruleStyleSheet);
}
rule->addSubresourceStyleURLs(urls);
}
}
}
void PageSerializer::serializeCSSStyleSheet(CSSStyleSheet* styleSheet, const KURL& url)
{
StringBuilder cssText;
for (unsigned i = 0; i < styleSheet->length(); ++i) {
CSSRule* rule = styleSheet->item(i);
String itemText = rule->cssText();
if (!itemText.isEmpty()) {
cssText.append(itemText);
if (i < styleSheet->length() - 1)
cssText.append("\n\n");
}
Document* document = styleSheet->findDocument();
// Some rules have resources associated with them that we need to retrieve.
if (rule->isImportRule()) {
CSSImportRule* importRule = static_cast<CSSImportRule*>(rule);
KURL importURL = document->completeURL(importRule->href());
if (m_resourceURLs.contains(importURL))
continue;
serializeCSSStyleSheet(importRule->styleSheet(), importURL);
} else if (rule->isFontFaceRule()) {
// FIXME: Add support for font face rule. It is not clear to me at this point if the actual otf/eot file can
// be retrieved from the CSSFontFaceRule object.
} else if (rule->isStyleRule())
retrieveResourcesForCSSRule(static_cast<CSSStyleRule*>(rule), document);
}
if (url.isValid() && !m_resourceURLs.contains(url)) {
// FIXME: We should check whether a charset has been specified and if none was found add one.
TextEncoding textEncoding(styleSheet->charset());
ASSERT(textEncoding.isValid());
String textString = cssText.toString();
CString text = textEncoding.encode(textString.characters(), textString.length(), EntitiesForUnencodables);
m_resources->append(Resource(url, String("text/css"), SharedBuffer::create(text.data(), text.length())));
m_resourceURLs.add(url);
}
}