bool matchesReservedStringPreventingAutocomplete(AtomicString& string)
{
if (string.contains("email", false /* caseSensitive */)
|| string.contains("user", false /* caseSensitive */)
|| string.contains("name", false /* caseSensitive */)
|| string.contains("login", false /* caseSensitive */))
return true;
return false;
}
static inline QualifiedName constructQualifiedName(const SVGElement* svgElement, const AtomicString& attributeName)
{
ASSERT(svgElement);
if (attributeName.isEmpty())
return anyQName();
if (!attributeName.contains(':'))
return QualifiedName(nullAtom, attributeName, nullAtom);
AtomicString prefix;
AtomicString localName;
if (!Document::parseQualifiedName(attributeName, prefix, localName, IGNORE_EXCEPTION))
return anyQName();
const AtomicString& namespaceURI = svgElement->lookupNamespaceURI(prefix);
if (namespaceURI.isEmpty())
return anyQName();
QualifiedName resolvedAttrName(nullAtom, localName, namespaceURI);
// "Animation elements treat attributeName='xlink:href' as being an alias
// for targetting the 'href' attribute."
// https://svgwg.org/svg2-draft/types.html#__svg__SVGURIReference__href
if (resolvedAttrName == XLinkNames::hrefAttr)
return SVGNames::hrefAttr;
return resolvedAttrName;
}
void ShadowTreeStyleSheetCollection::collectStyleSheets(StyleEngine* collections, Vector<RefPtr<StyleSheet> >& styleSheets, Vector<RefPtr<CSSStyleSheet> >& activeSheets)
{
if (document()->settings() && !document()->settings()->authorAndUserStylesEnabled())
return;
DocumentOrderedList::iterator begin = m_styleSheetCandidateNodes.begin();
DocumentOrderedList::iterator end = m_styleSheetCandidateNodes.end();
for (DocumentOrderedList::iterator it = begin; it != end; ++it) {
Node* node = *it;
StyleSheet* sheet = 0;
CSSStyleSheet* activeSheet = 0;
if (!node->isHTMLElement() || !node->hasTagName(styleTag))
continue;
Element* element = toElement(node);
AtomicString title = element->getAttribute(titleAttr);
bool enabledViaScript = false;
sheet = toHTMLStyleElement(node)->sheet();
if (sheet && !sheet->disabled() && sheet->isCSSStyleSheet())
activeSheet = static_cast<CSSStyleSheet*>(sheet);
// FIXME: clarify how PREFERRED or ALTERNATE works in shadow trees.
// Should we set preferred/selected stylesheets name in shadow trees and
// use the name in document?
AtomicString rel = element->getAttribute(relAttr);
if (!enabledViaScript && sheet && !title.isEmpty()) {
if (collections->preferredStylesheetSetName().isEmpty()) {
if (element->hasLocalName(styleTag) || !rel.contains("alternate")) {
collections->setPreferredStylesheetSetName(title);
collections->setSelectedStylesheetSetName(title);
}
}
if (title != collections->preferredStylesheetSetName())
activeSheet = 0;
}
if (rel.contains("alternate") && title.isEmpty())
activeSheet = 0;
if (sheet)
styleSheets.append(sheet);
if (activeSheet)
activeSheets.append(activeSheet);
}
}
static inline QualifiedName constructQualifiedName(const SVGElement* svgElement, const AtomicString& attributeName)
{
ASSERT(svgElement);
if (attributeName.isEmpty())
return anyQName();
if (!attributeName.contains(':'))
return QualifiedName(nullAtom, attributeName, nullAtom);
AtomicString prefix;
AtomicString localName;
if (!Document::parseQualifiedName(attributeName, prefix, localName, IGNORE_EXCEPTION))
return anyQName();
const AtomicString& namespaceURI = svgElement->lookupNamespaceURI(prefix);
if (namespaceURI.isEmpty())
return anyQName();
return QualifiedName(nullAtom, localName, namespaceURI);
}
void TrackBase::setLanguage(const AtomicString& language)
{
if (!language.isEmpty() && !isValidBCP47LanguageTag(language)) {
String message;
if (language.contains((UChar)'\0'))
message = WTF::ASCIILiteral("The language contains a null character and is not a valid BCP 47 language tag.");
else {
StringBuilder stringBuilder;
stringBuilder.appendLiteral("The language '");
stringBuilder.append(language);
stringBuilder.appendLiteral("' is not a valid BCP 47 language tag.");
message = stringBuilder.toString();
}
if (auto element = this->element())
element->document().addConsoleMessage(MessageSource::Rendering, MessageLevel::Warning, message);
} else
m_validBCP47Language = language;
m_language = language;
}
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);
}
}
static bool matchesReservedStringEmail(const AtomicString& string)
{
return string.contains("email", false /* caseSensitive */);
}
static bool attributeValueMatches(const Attribute* attributeItem, CSSSelector::Match match, const AtomicString& selectorValue, bool caseSensitive)
{
const AtomicString& value = attributeItem->value();
if (value.isNull())
return false;
switch (match) {
case CSSSelector::Exact:
if (caseSensitive ? selectorValue != value : !equalIgnoringCase(selectorValue, value))
return false;
break;
case CSSSelector::List:
{
// Ignore empty selectors or selectors containing spaces
if (selectorValue.contains(' ') || selectorValue.isEmpty())
return false;
unsigned startSearchAt = 0;
while (true) {
size_t foundPos = value.find(selectorValue, startSearchAt, caseSensitive);
if (foundPos == notFound)
return false;
if (!foundPos || value[foundPos - 1] == ' ') {
unsigned endStr = foundPos + selectorValue.length();
if (endStr == value.length() || value[endStr] == ' ')
break; // We found a match.
}
// No match. Keep looking.
startSearchAt = foundPos + 1;
}
break;
}
case CSSSelector::Contain:
if (!value.contains(selectorValue, caseSensitive) || selectorValue.isEmpty())
return false;
break;
case CSSSelector::Begin:
if (!value.startsWith(selectorValue, caseSensitive) || selectorValue.isEmpty())
return false;
break;
case CSSSelector::End:
if (!value.endsWith(selectorValue, caseSensitive) || selectorValue.isEmpty())
return false;
break;
case CSSSelector::Hyphen:
if (value.length() < selectorValue.length())
return false;
if (!value.startsWith(selectorValue, caseSensitive))
return false;
// It they start the same, check for exact match or following '-':
if (value.length() != selectorValue.length() && value[selectorValue.length()] != '-')
return false;
break;
case CSSSelector::PseudoClass:
case CSSSelector::PseudoElement:
default:
break;
}
return true;
}