示例#1
0
void PageSerializer::serializeCSSStyleSheet(CSSStyleSheet* styleSheet, const KURL& url)
{
    StringBuilder cssText;
    for (unsigned i = 0; i < styleSheet->length(); ++i) {
        StyleBase* item = styleSheet->item(i);
        String itemText = item->cssText();
        if (!itemText.isEmpty()) {
            cssText.append(itemText);
            if (i < styleSheet->length() - 1)
                cssText.append("\n\n");
        }
        // Some rules have resources associated with them that we need to retrieve.
        if (item->isImportRule()) {
            CSSImportRule* importRule = static_cast<CSSImportRule*>(item);
            KURL importURL = styleSheet->document()->completeURL(importRule->href());
            if (m_resourceURLs.contains(importURL))
                continue;
            serializeCSSStyleSheet(importRule->styleSheet(), importURL);
        } else if (item->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 (item->isStyleRule())
            retrieveResourcesForCSSRule(static_cast<CSSStyleRule*>(item));
    }

    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);
    }
}
String CSSVariablesDeclaration::getVariableValue(const String& variableName)
{
    StyleBase* val = m_variablesMap.get(variableName).get();
    if (val)
        return val->cssText();
    return "";
}