void HTMLLinkElement::process()
{
if (!inDocument())
return;
String type = m_type.lower();
// IE extension: location of small icon for locationbar / bookmarks
// We'll record this URL per document, even if we later only use it in top level frames
if (m_isIcon && m_url.isValid() && !m_url.isEmpty())
document()->setIconURL(m_url.string(), type);
if (m_isDNSPrefetch && m_url.isValid() && !m_url.isEmpty())
ResourceHandle::prepareForURL(m_url);
bool acceptIfTypeContainsTextCSS = document()->page() && document()->page()->settings() && document()->page()->settings()->treatsAnyTextCSSLinkAsStylesheet();
// Stylesheet
// This was buggy and would incorrectly match <link rel="alternate">, which has a different specified meaning. -dwh
if (m_disabledState != 2 && (m_isStyleSheet || (acceptIfTypeContainsTextCSS && type.contains("text/css"))) && document()->frame() && m_url.isValid()) {
// also, don't load style sheets for standalone documents
String charset = getAttribute(charsetAttr);
if (charset.isEmpty() && document()->frame())
charset = document()->frame()->loader()->encoding();
if (m_cachedSheet) {
if (m_loading)
document()->removePendingSheet();
m_cachedSheet->removeClient(this);
m_cachedSheet = 0;
}
if (!dispatchBeforeLoadEvent(m_url))
return;
m_loading = true;
// Add ourselves as a pending sheet, but only if we aren't an alternate
// stylesheet. Alternate stylesheets don't hold up render tree construction.
if (!isAlternate())
document()->addPendingSheet();
m_cachedSheet = document()->docLoader()->requestCSSStyleSheet(m_url, charset);
if (m_cachedSheet)
m_cachedSheet->addClient(this);
else {
// The request may have been denied if (for example) the stylesheet is local and the document is remote.
m_loading = false;
if (!isAlternate())
document()->removePendingSheet();
}
} else if (m_sheet) {
// we no longer contain a stylesheet, e.g. perhaps rel or type was changed
m_sheet = 0;
document()->updateStyleSelector();
}
}
bool HTMLLinkElement::shouldLoadLink()
{
RefPtr<Document> originalDocument = document();
if (!dispatchBeforeLoadEvent(m_url))
return false;
// A beforeload handler might have removed us from the document or changed the document.
if (!inDocument() || document() != originalDocument)
return false;
return true;
}
// FIXME: This should be unified with HTMLEmbedElement::updateWidget and
// moved down into HTMLPluginImageElement.cpp
void HTMLObjectElement::updateWidget(bool onlyCreateNonNetscapePlugins)
{
ASSERT(!renderEmbeddedObject()->pluginCrashedOrWasMissing());
// FIXME: We should ASSERT(needsWidgetUpdate()), but currently
// FrameView::updateWidget() calls updateWidget(false) without checking if
// the widget actually needs updating!
setNeedsWidgetUpdate(false);
// FIXME: This should ASSERT isFinishedParsingChildren() instead.
if (!isFinishedParsingChildren())
return;
String url = this->url();
// If the object does not specify a MIME type via a type attribute, but does
// contain a classid attribute, try to map the classid to a MIME type.
String serviceType = this->serviceType();
if (serviceType.isEmpty())
serviceType = serviceTypeForClassId(classId());
// FIXME: These should be joined into a PluginParameters class.
Vector<String> paramNames;
Vector<String> paramValues;
parametersForPlugin(paramNames, paramValues, url, serviceType);
// Note: url is modified above by parametersForPlugin.
if (!allowedToLoadFrameURL(url))
return;
bool fallbackContent = hasFallbackContent();
renderEmbeddedObject()->setHasFallbackContent(fallbackContent);
if (onlyCreateNonNetscapePlugins && wouldLoadAsNetscapePlugin(url, serviceType))
return;
bool beforeLoadAllowedLoad = dispatchBeforeLoadEvent(url);
// beforeload events can modify the DOM, potentially causing
// RenderWidget::destroy() to be called. Ensure we haven't been
// destroyed before continuing.
// FIXME: Should this render fallback content?
if (!renderer())
return;
SubframeLoader* loader = document()->frame()->loader()->subframeLoader();
bool success = beforeLoadAllowedLoad && loader->requestObject(this, url, getAttribute(nameAttr), serviceType, paramNames, paramValues);
if (!success && fallbackContent)
renderFallbackContent();
}
// FIXME: This should be unified with HTMLEmbedElement::updateWidget and
// moved down into HTMLPluginImageElement.cpp
void HTMLObjectElement::updateWidget(PluginCreationOption pluginCreationOption)
{
ASSERT(!renderEmbeddedObject()->pluginCrashedOrWasMissing());
// FIXME: We should ASSERT(needsWidgetUpdate()), but currently
// FrameView::updateWidget() calls updateWidget(false) without checking if
// the widget actually needs updating!
setNeedsWidgetUpdate(false);
// FIXME: This should ASSERT isFinishedParsingChildren() instead.
if (!isFinishedParsingChildren())
return;
String url = this->url();
String serviceType = this->serviceType();
// FIXME: These should be joined into a PluginParameters class.
Vector<String> paramNames;
Vector<String> paramValues;
parametersForPlugin(paramNames, paramValues, url, serviceType);
// Note: url is modified above by parametersForPlugin.
if (!allowedToLoadFrameURL(url))
return;
bool fallbackContent = hasFallbackContent();
renderEmbeddedObject()->setHasFallbackContent(fallbackContent);
if (pluginCreationOption == CreateOnlyNonNetscapePlugins && wouldLoadAsNetscapePlugin(url, serviceType))
return;
ASSERT(!m_inBeforeLoadEventHandler);
m_inBeforeLoadEventHandler = true;
bool beforeLoadAllowedLoad = dispatchBeforeLoadEvent(url);
m_inBeforeLoadEventHandler = false;
// beforeload events can modify the DOM, potentially causing
// RenderWidget::destroy() to be called. Ensure we haven't been
// destroyed before continuing.
// FIXME: Should this render fallback content?
if (!renderer())
return;
RefPtr<HTMLObjectElement> protect(this); // Loading the plugin might remove us from the document.
SubframeLoader* loader = document()->frame()->loader()->subframeLoader();
bool success = beforeLoadAllowedLoad && hasValidClassId() && loader->requestObject(this, url, getAttribute(nameAttr), serviceType, paramNames, paramValues);
if (!success && fallbackContent)
renderFallbackContent();
}
void ProcessingInstruction::checkStyleSheet()
{
if (m_target == "xml-stylesheet" && document().frame() && parentNode() == &document()) {
// see http://www.w3.org/TR/xml-stylesheet/
// ### support stylesheet included in a fragment of this (or another) document
// ### make sure this gets called when adding from javascript
bool attrsOk;
const HashMap<String, String> attrs = parseAttributes(data(), attrsOk);
if (!attrsOk)
return;
HashMap<String, String>::const_iterator i = attrs.find("type");
String type;
if (i != attrs.end())
type = i->value;
m_isCSS = type.isEmpty() || type == "text/css";
#if ENABLE(XSLT)
m_isXSL = (type == "text/xml" || type == "text/xsl" || type == "application/xml" ||
type == "application/xhtml+xml" || type == "application/rss+xml" || type == "application/atom+xml");
if (!m_isCSS && !m_isXSL)
#else
if (!m_isCSS)
#endif
return;
String href = attrs.get("href");
String alternate = attrs.get("alternate");
m_alternate = alternate == "yes";
m_title = attrs.get("title");
m_media = attrs.get("media");
if (m_alternate && m_title.isEmpty())
return;
if (href.length() > 1 && href[0] == '#') {
m_localHref = href.substring(1);
#if ENABLE(XSLT)
// We need to make a synthetic XSLStyleSheet that is embedded. It needs to be able
// to kick off import/include loads that can hang off some parent sheet.
if (m_isXSL) {
URL finalURL(ParsedURLString, m_localHref);
m_sheet = XSLStyleSheet::createEmbedded(this, finalURL);
m_loading = false;
}
#endif
} else {
if (m_cachedSheet) {
m_cachedSheet->removeClient(this);
m_cachedSheet = 0;
}
String url = document().completeURL(href).string();
if (!dispatchBeforeLoadEvent(url))
return;
m_loading = true;
document().styleSheetCollection().addPendingSheet();
CachedResourceRequest request(ResourceRequest(document().completeURL(href)));
#if ENABLE(XSLT)
if (m_isXSL)
m_cachedSheet = document().cachedResourceLoader()->requestXSLStyleSheet(request);
else
#endif
{
String charset = attrs.get("charset");
if (charset.isEmpty())
charset = document().charset();
request.setCharset(charset);
m_cachedSheet = document().cachedResourceLoader()->requestCSSStyleSheet(request);
}
if (m_cachedSheet)
m_cachedSheet->addClient(this);
else {
// The request may have been denied if (for example) the stylesheet is local and the document is remote.
m_loading = false;
document().styleSheetCollection().removePendingSheet();
}
}
}
}
void HTMLLinkElement::process()
{
if (!inDocument()) {
ASSERT(!m_sheet);
return;
}
String type = m_type.lower();
// IE extension: location of small icon for locationbar / bookmarks
// We'll record this URL per document, even if we later only use it in top level frames
if (m_relAttribute.m_isIcon && m_url.isValid() && !m_url.isEmpty())
document()->setIconURL(m_url.string(), type);
if (m_relAttribute.m_isDNSPrefetch) {
Settings* settings = document()->settings();
// FIXME: The href attribute of the link element can be in "//hostname" form, and we shouldn't attempt
// to complete that as URL <https://bugs.webkit.org/show_bug.cgi?id=48857>.
if (settings && settings->dnsPrefetchingEnabled() && m_url.isValid() && !m_url.isEmpty())
ResourceHandle::prepareForURL(m_url);
}
#if ENABLE(LINK_PREFETCH)
if (m_relAttribute.m_isLinkPrefetch && m_url.isValid() && document()->frame())
document()->cachedResourceLoader()->requestLinkPrefetch(m_url);
#endif
bool acceptIfTypeContainsTextCSS = document()->page() && document()->page()->settings() && document()->page()->settings()->treatsAnyTextCSSLinkAsStylesheet();
// Stylesheet
// This was buggy and would incorrectly match <link rel="alternate">, which has a different specified meaning. -dwh
if (m_disabledState != Disabled && (m_relAttribute.m_isStyleSheet || (acceptIfTypeContainsTextCSS && type.contains("text/css"))) && document()->frame() && m_url.isValid()) {
// also, don't load style sheets for standalone documents
String charset = getAttribute(charsetAttr);
if (charset.isEmpty() && document()->frame())
charset = document()->frame()->loader()->writer()->encoding();
if (m_cachedSheet) {
if (m_loading)
document()->removePendingSheet();
m_cachedSheet->removeClient(this);
m_cachedSheet = 0;
}
if (!dispatchBeforeLoadEvent(m_url))
return;
m_loading = true;
// Add ourselves as a pending sheet, but only if we aren't an alternate
// stylesheet. Alternate stylesheets don't hold up render tree construction.
if (!isAlternate())
document()->addPendingSheet();
m_cachedSheet = document()->cachedResourceLoader()->requestCSSStyleSheet(m_url, charset);
if (m_cachedSheet)
m_cachedSheet->addClient(this);
else {
// The request may have been denied if (for example) the stylesheet is local and the document is remote.
m_loading = false;
if (!isAlternate())
document()->removePendingSheet();
}
} else if (m_sheet) {
// we no longer contain a stylesheet, e.g. perhaps rel or type was changed
m_sheet = 0;
document()->styleSelectorChanged(DeferRecalcStyle);
}
}