C++ (Cpp) CachedResourceLoader::requestXSLStyleSheet Beispiele

Beispiel #1

void XSLImportRule::loadSheet()
{
    CachedResourceLoader* cachedResourceLoader = 0;

    XSLStyleSheet* rootSheet = parentStyleSheet();

    if (rootSheet) {
        while (XSLStyleSheet* parentSheet = rootSheet->parentStyleSheet())
            rootSheet = parentSheet;
    }

    if (rootSheet)
        cachedResourceLoader = rootSheet->cachedResourceLoader();
    
    String absHref = m_strHref;
    XSLStyleSheet* parentSheet = parentStyleSheet();
    if (!parentSheet->baseURL().isNull())
        // use parent styleheet's URL as the base URL
        absHref = KURL(parentSheet->baseURL(), m_strHref).string();
    
    // Check for a cycle in our import chain.  If we encounter a stylesheet
    // in our parent chain with the same URL, then just bail.
    for (XSLStyleSheet* parentSheet = parentStyleSheet(); parentSheet; parentSheet = parentSheet->parentStyleSheet()) {
        if (absHref == parentSheet->baseURL().string())
            return;
    }
    
    CachedResourceRequest request(ResourceRequest(cachedResourceLoader->document()->completeURL(absHref)));
    if (m_cachedSheet)
        m_cachedSheet->removeClient(this);
    m_cachedSheet = cachedResourceLoader->requestXSLStyleSheet(request);
    
    if (m_cachedSheet) {
        m_cachedSheet->addClient(this);
        
        // If the imported sheet is in the cache, then setXSLStyleSheet gets called,
        // and the sheet even gets parsed (via parseString).  In this case we have
        // loaded (even if our subresources haven't), so if we have a stylesheet after
        // checking the cache, then we've clearly loaded.
        if (!m_styleSheet)
            m_loading = true;
    }
}