Beispiel #1
0
void PageSerializer::serializeFrame(Frame* frame)
{
    Document* document = frame->document();
    URL url = document->url();
    if (!url.isValid() || url.isBlankURL()) {
        // For blank frames we generate a fake URL so they can be referenced by their containing frame.
        url = urlForBlankFrame(frame);
    }

    if (m_resourceURLs.contains(url)) {
        // FIXME: We could have 2 frame with the same URL but which were dynamically changed and have now
        // different content. So we should serialize both and somehow rename the frame src in the containing
        // frame. Arg!
        return;
    }

    Vector<Node*> nodes;
    SerializerMarkupAccumulator accumulator(*this, *document, &nodes);
    TextEncoding textEncoding(document->charset());
    CString data;
    if (!textEncoding.isValid()) {
        // FIXME: iframes used as images trigger this. We should deal with them correctly.
        return;
    }
    String text = accumulator.serializeNodes(*document->documentElement(), 0, IncludeNode);
    CString frameHTML = textEncoding.encode(text, EntitiesForUnencodables);
    m_resources->append(Resource(url, document->suggestedMIMEType(), SharedBuffer::create(frameHTML.data(), frameHTML.length())));
    m_resourceURLs.add(url);

    for (Vector<Node*>::iterator iter = nodes.begin(); iter != nodes.end(); ++iter) {
        Node* node = *iter;
        if (!node->isElementNode())
            continue;

        Element* element = toElement(node);
        // We have to process in-line style as it might contain some resources (typically background images).
        if (element->isStyledElement())
            retrieveResourcesForProperties(toStyledElement(element)->inlineStyle(), document);

        if (isHTMLImageElement(element)) {
            HTMLImageElement* imageElement = toHTMLImageElement(element);
            URL url = document->completeURL(imageElement->getAttribute(HTMLNames::srcAttr));
            CachedImage* cachedImage = imageElement->cachedImage();
            addImageToResources(cachedImage, imageElement->renderer(), url);
        } else if (element->hasTagName(HTMLNames::linkTag)) {
            HTMLLinkElement* linkElement = toHTMLLinkElement(element);
            if (CSSStyleSheet* sheet = linkElement->sheet()) {
                URL url = document->completeURL(linkElement->getAttribute(HTMLNames::hrefAttr));
                serializeCSSStyleSheet(sheet, url);
                ASSERT(m_resourceURLs.contains(url));
            }
        } else if (isHTMLStyleElement(element)) {
            if (CSSStyleSheet* sheet = toHTMLStyleElement(element)->sheet())
                serializeCSSStyleSheet(sheet, URL());
        }
    }

    for (Frame* childFrame = frame->tree().firstChild(); childFrame; childFrame = childFrame->tree().nextSibling())
        serializeFrame(childFrame);
}
Beispiel #2
0
JSValue jsHTMLLinkElementSheet(ExecState* exec, JSValue slotBase, const Identifier&)
{
    JSHTMLLinkElement* castedThis = static_cast<JSHTMLLinkElement*>(asObject(slotBase));
    UNUSED_PARAM(exec);
    HTMLLinkElement* imp = static_cast<HTMLLinkElement*>(castedThis->impl());
    JSValue result = toJS(exec, castedThis->globalObject(), WTF::getPtr(imp->sheet()));
    return result;
}
JSValue* JSHTMLLinkElement::getValueProperty(ExecState* exec, int token) const
{
    switch (token) {
    case DisabledAttrNum: {
        HTMLLinkElement* imp = static_cast<HTMLLinkElement*>(impl());
        return jsBoolean(imp->disabled());
    }
    case CharsetAttrNum: {
        HTMLLinkElement* imp = static_cast<HTMLLinkElement*>(impl());
        return jsString(exec, imp->charset());
    }
    case HrefAttrNum: {
        HTMLLinkElement* imp = static_cast<HTMLLinkElement*>(impl());
        return jsString(exec, imp->href());
    }
    case HreflangAttrNum: {
        HTMLLinkElement* imp = static_cast<HTMLLinkElement*>(impl());
        return jsString(exec, imp->hreflang());
    }
    case MediaAttrNum: {
        HTMLLinkElement* imp = static_cast<HTMLLinkElement*>(impl());
        return jsString(exec, imp->media());
    }
    case RelAttrNum: {
        HTMLLinkElement* imp = static_cast<HTMLLinkElement*>(impl());
        return jsString(exec, imp->rel());
    }
    case RevAttrNum: {
        HTMLLinkElement* imp = static_cast<HTMLLinkElement*>(impl());
        return jsString(exec, imp->rev());
    }
    case TargetAttrNum: {
        HTMLLinkElement* imp = static_cast<HTMLLinkElement*>(impl());
        return jsString(exec, imp->target());
    }
    case TypeAttrNum: {
        HTMLLinkElement* imp = static_cast<HTMLLinkElement*>(impl());
        return jsString(exec, imp->type());
    }
    case SheetAttrNum: {
        HTMLLinkElement* imp = static_cast<HTMLLinkElement*>(impl());
        return toJS(exec, WTF::getPtr(imp->sheet()));
    }
    case ConstructorAttrNum:
        return getConstructor(exec);
    }
    return 0;
}
void DocumentStyleSheetCollection::collectActiveStyleSheets(Vector<RefPtr<StyleSheet> >& sheets)
{
    if (m_document->settings() && !m_document->settings()->authorAndUserStylesEnabled())
        return;

    StyleSheetCandidateListHashSet::iterator begin = m_styleSheetCandidateNodes.begin();
    StyleSheetCandidateListHashSet::iterator end = m_styleSheetCandidateNodes.end();
    for (StyleSheetCandidateListHashSet::iterator it = begin; it != end; ++it) {
        Node* n = *it;
        StyleSheet* sheet = 0;
        if (n->nodeType() == Node::PROCESSING_INSTRUCTION_NODE) {
            // Processing instruction (XML documents only).
            // We don't support linking to embedded CSS stylesheets, see <https://bugs.webkit.org/show_bug.cgi?id=49281> for discussion.
            ProcessingInstruction* pi = static_cast<ProcessingInstruction*>(n);
            sheet = pi->sheet();
#if ENABLE(XSLT)
            // Don't apply XSL transforms to already transformed documents -- <rdar://problem/4132806>
            if (pi->isXSL() && !m_document->transformSourceDocument()) {
                // Don't apply XSL transforms until loading is finished.
                if (!m_document->parsing())
                    m_document->applyXSLTransform(pi);
                return;
            }
#endif
        } else if ((n->isHTMLElement() && (n->hasTagName(linkTag) || n->hasTagName(styleTag)))
#if ENABLE(SVG)
                   ||  (n->isSVGElement() && n->hasTagName(SVGNames::styleTag))
#endif
                   ) {
            Element* e = toElement(n);
            AtomicString title = e->getAttribute(titleAttr);
            bool enabledViaScript = false;
            if (e->hasTagName(linkTag)) {
                // <LINK> element
                HTMLLinkElement* linkElement = static_cast<HTMLLinkElement*>(n);
                if (linkElement->isDisabled())
                    continue;
                enabledViaScript = linkElement->isEnabledViaScript();
                if (linkElement->styleSheetIsLoading()) {
                    // it is loading but we should still decide which style sheet set to use
                    if (!enabledViaScript && !title.isEmpty() && m_preferredStylesheetSetName.isEmpty()) {
                        const AtomicString& rel = e->getAttribute(relAttr);
                        if (!rel.contains("alternate")) {
                            m_preferredStylesheetSetName = title;
                            m_selectedStylesheetSetName = title;
                        }
                    }
                    continue;
                }
                if (!linkElement->sheet())
                    title = nullAtom;
            }
            // Get the current preferred styleset. This is the
            // set of sheets that will be enabled.
#if ENABLE(SVG)
            if (e->hasTagName(SVGNames::styleTag))
                sheet = static_cast<SVGStyleElement*>(n)->sheet();
            else
#endif
            {
                if (e->hasTagName(linkTag))
                    sheet = static_cast<HTMLLinkElement*>(n)->sheet();
                else
                    // <STYLE> element
                    sheet = toHTMLStyleElement(e)->sheet();
            }
            // Check to see if this sheet belongs to a styleset
            // (thus making it PREFERRED or ALTERNATE rather than
            // PERSISTENT).
            AtomicString rel = e->getAttribute(relAttr);
            if (!enabledViaScript && !title.isEmpty()) {
                // Yes, we have a title.
                if (m_preferredStylesheetSetName.isEmpty()) {
                    // No preferred set has been established. If
                    // we are NOT an alternate sheet, then establish
                    // us as the preferred set. Otherwise, just ignore
                    // this sheet.
                    if (e->hasTagName(styleTag) || !rel.contains("alternate"))
                        m_preferredStylesheetSetName = m_selectedStylesheetSetName = title;
                }
                if (title != m_preferredStylesheetSetName)
                    sheet = 0;
            }

            if (rel.contains("alternate") && title.isEmpty())
                sheet = 0;
        }
        if (sheet)
            sheets.append(sheet);
    }
}