ExceptionOr<unsigned> CSSGroupingRule::insertRule(const String& ruleString, unsigned index)
{
ASSERT(m_childRuleCSSOMWrappers.size() == m_groupRule->childRules().size());
if (index > m_groupRule->childRules().size()) {
// INDEX_SIZE_ERR: Raised if the specified index is not a valid insertion point.
return Exception { INDEX_SIZE_ERR };
}
CSSParser parser(parserContext());
CSSStyleSheet* styleSheet = parentStyleSheet();
RefPtr<StyleRuleBase> newRule = parser.parseRule(styleSheet ? &styleSheet->contents() : nullptr, ruleString);
if (!newRule) {
// SYNTAX_ERR: Raised if the specified rule has a syntax error and is unparsable.
return Exception { SYNTAX_ERR };
}
if (newRule->isImportRule()) {
// FIXME: an HIERARCHY_REQUEST_ERR should also be thrown for a @charset or a nested
// @media rule. They are currently not getting parsed, resulting in a SYNTAX_ERR
// to get raised above.
// HIERARCHY_REQUEST_ERR: Raised if the rule cannot be inserted at the specified
// index, e.g., if an @import rule is inserted after a standard rule set or other
// at-rule.
return Exception { HIERARCHY_REQUEST_ERR };
}
CSSStyleSheet::RuleMutationScope mutationScope(this);
m_groupRule->wrapperInsertRule(index, newRule.releaseNonNull());
m_childRuleCSSOMWrappers.insert(index, RefPtr<CSSRule>());
return index;
}
unsigned CSSGroupingRule::insertRule(const String& ruleString, unsigned index, ExceptionState& exceptionState)
{
ASSERT(m_childRuleCSSOMWrappers.size() == m_groupRule->childRules().size());
if (index > m_groupRule->childRules().size()) {
exceptionState.throwDOMException(IndexSizeError, "the index " + String::number(index) + " must be less than or equal to the length of the rule list.");
return 0;
}
CSSStyleSheet* styleSheet = parentStyleSheet();
CSSParserContext context(parserContext(), UseCounter::getFrom(styleSheet));
BisonCSSParser parser(context);
RefPtrWillBeRawPtr<StyleRuleBase> newRule = parser.parseRule(styleSheet ? styleSheet->contents() : 0, ruleString);
if (!newRule) {
exceptionState.throwDOMException(SyntaxError, "the rule '" + ruleString + "' is invalid and cannot be parsed.");
return 0;
}
if (newRule->isImportRule()) {
// FIXME: an HierarchyRequestError should also be thrown for a @charset or a nested
// @media rule. They are currently not getting parsed, resulting in a SyntaxError
// to get raised above.
exceptionState.throwDOMException(HierarchyRequestError, "'@import' rules cannot be inserted inside a group rule.");
return 0;
}
CSSStyleSheet::RuleMutationScope mutationScope(this);
m_groupRule->wrapperInsertRule(index, newRule);
m_childRuleCSSOMWrappers.insert(index, RefPtrWillBeMember<CSSRule>(nullptr));
return index;
}
JSValue JSC_HOST_CALL jsCSSStyleSheetPrototypeFunctionAddRule(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
UNUSED_PARAM(args);
if (!thisValue.inherits(&JSCSSStyleSheet::s_info))
return throwError(exec, TypeError);
JSCSSStyleSheet* castedThisObj = static_cast<JSCSSStyleSheet*>(asObject(thisValue));
CSSStyleSheet* imp = static_cast<CSSStyleSheet*>(castedThisObj->impl());
ExceptionCode ec = 0;
const UString& selector = args.at(0).toString(exec);
const UString& style = args.at(1).toString(exec);
int argsCount = args.size();
if (argsCount < 3) {
JSC::JSValue result = jsNumber(exec, imp->addRule(selector, style, ec));
setDOMException(exec, ec);
return result;
}
unsigned index = args.at(2).toInt32(exec);
JSC::JSValue result = jsNumber(exec, imp->addRule(selector, style, index, ec));
setDOMException(exec, ec);
return result;
}
void PageSerializer::retrieveResourcesForCSSDeclaration(CSSMutableStyleDeclaration* styleDeclaration)
{
if (!styleDeclaration)
return;
CSSStyleSheet* cssStyleSheet = styleDeclaration->parentStyleSheet();
ASSERT(cssStyleSheet);
// The background-image and list-style-image (for ul or ol) are the CSS properties
// that make use of images. We iterate to make sure we include any other
// image properties there might be.
unsigned propertyCount = styleDeclaration->propertyCount();
for (unsigned i = 0; i < propertyCount; ++i) {
RefPtr<CSSValue> cssValue = styleDeclaration->propertyAt(i).value();
if (!cssValue->isImageValue())
continue;
CSSImageValue* imageValue = static_cast<CSSImageValue*>(cssValue.get());
StyleImage* styleImage = imageValue->cachedOrPendingImage();
// Non cached-images are just place-holders and do not contain data.
if (!styleImage || !styleImage->isCachedImage())
continue;
CachedImage* image = static_cast<StyleCachedImage*>(styleImage)->cachedImage();
Document* document = cssStyleSheet->findDocument();
KURL url = document->completeURL(image->url());
addImageToResources(image, 0, url);
}
}
NS_IMETHODIMP
inDOMUtils::GetRelativeRuleLine(nsIDOMCSSRule* aRule, uint32_t* _retval)
{
NS_ENSURE_ARG_POINTER(aRule);
Rule* rule = aRule->GetCSSRule();
if (!rule) {
return NS_ERROR_FAILURE;
}
uint32_t lineNumber = rule->GetLineNumber();
CSSStyleSheet* sheet = rule->GetStyleSheet();
if (sheet) {
nsINode* owningNode = sheet->GetOwnerNode();
if (owningNode) {
nsCOMPtr<nsIStyleSheetLinkingElement> link =
do_QueryInterface(owningNode);
if (link) {
lineNumber -= link->GetLineNumber() - 1;
}
}
}
*_retval = lineNumber;
return NS_OK;
}
JSValue* jsCSSStyleSheetPrototypeFunctionAddRule(ExecState* exec, JSObject*, JSValue* thisValue, const ArgList& args)
{
if (!thisValue->isObject(&JSCSSStyleSheet::s_info))
return throwError(exec, TypeError);
JSCSSStyleSheet* castedThisObj = static_cast<JSCSSStyleSheet*>(thisValue);
CSSStyleSheet* imp = static_cast<CSSStyleSheet*>(castedThisObj->impl());
ExceptionCode ec = 0;
const UString& selector = args[0]->toString(exec);
const UString& style = args[1]->toString(exec);
int argsCount = args.size();
if (argsCount < 3) {
KJS::JSValue* result = jsNumber(exec, imp->addRule(selector, style, ec));
setDOMException(exec, ec);
return result;
}
unsigned index = args[2]->toInt32(exec);
KJS::JSValue* result = jsNumber(exec, imp->addRule(selector, style, index, ec));
setDOMException(exec, ec);
return result;
}
void ProcessingInstruction::setCSSStyleSheet(
const String& href,
const KURL& baseURL,
const String& charset,
const CSSStyleSheetResource* sheet) {
if (!isConnected()) {
DCHECK(!m_sheet);
return;
}
DCHECK(m_isCSS);
CSSParserContext parserContext(document(), nullptr, baseURL, charset);
StyleSheetContents* newSheet =
StyleSheetContents::create(href, parserContext);
CSSStyleSheet* cssSheet = CSSStyleSheet::create(newSheet, *this);
cssSheet->setDisabled(m_alternate);
cssSheet->setTitle(m_title);
if (!m_alternate && !m_title.isEmpty())
document().styleEngine().setPreferredStylesheetSetNameIfNotSet(
m_title, StyleEngine::DontUpdateActiveSheets);
cssSheet->setMediaQueries(MediaQuerySet::create(m_media));
m_sheet = cssSheet;
// We don't need the cross-origin security check here because we are
// getting the sheet text in "strict" mode. This enforces a valid CSS MIME
// type.
parseStyleSheet(sheet->sheetText());
}
unsigned CSSGroupingRule::insertRule(const String& ruleString, unsigned index, ExceptionState& exceptionState)
{
ASSERT(m_childRuleCSSOMWrappers.size() == m_groupRule->childRules().size());
if (index > m_groupRule->childRules().size()) {
exceptionState.throwDOMException(IndexSizeError, "the index " + String::number(index) + " must be less than or equal to the length of the rule list.");
return 0;
}
CSSStyleSheet* styleSheet = parentStyleSheet();
CSSParserContext context(parserContext(), UseCounter::getFrom(styleSheet));
BisonCSSParser parser(context);
RefPtrWillBeRawPtr<StyleRuleBase> newRule = parser.parseRule(styleSheet ? styleSheet->contents() : 0, ruleString);
if (!newRule) {
exceptionState.throwDOMException(SyntaxError, "the rule '" + ruleString + "' is invalid and cannot be parsed.");
return 0;
}
CSSStyleSheet::RuleMutationScope mutationScope(this);
m_groupRule->wrapperInsertRule(index, newRule);
m_childRuleCSSOMWrappers.insert(index, RefPtrWillBeMember<CSSRule>(nullptr));
return index;
}
void PageSerializer::retrieveResourcesForCSSDeclaration(CSSStyleDeclaration* styleDeclaration)
{
if (!styleDeclaration)
return;
if (!styleDeclaration->stylesheet()->isCSSStyleSheet())
return;
CSSStyleSheet* cssStyleSheet = static_cast<CSSStyleSheet*>(styleDeclaration->stylesheet());
// The background-image and list-style-image (for ul or ol) are the CSS properties
// that make use of images. We iterate to make sure we include any other
// image properties there might be.
for (unsigned i = 0; i < styleDeclaration->length(); ++i) {
// FIXME: It's kind of ridiculous to get the property name and then get
// the value out of the name. Ideally we would get the value out of the
// property ID, but CSSStyleDeclaration only gives access to property
// names, not IDs.
RefPtr<CSSValue> cssValue = styleDeclaration->getPropertyCSSValue(styleDeclaration->item(i));
if (!cssValue->isImageValue())
continue;
CSSImageValue* imageValue = static_cast<CSSImageValue*>(cssValue.get());
StyleImage* styleImage = imageValue->cachedOrPendingImage();
// Non cached-images are just place-holders and do not contain data.
if (!styleImage || !styleImage->isCachedImage())
continue;
CachedImage* image = static_cast<StyleCachedImage*>(styleImage)->cachedImage();
KURL url = cssStyleSheet->document()->completeURL(image->url());
addImageToResources(image, url);
}
}
PassRefPtr<InspectorObject> InspectorStyleSheet::buildObjectForRule(CSSStyleRule* rule)
{
CSSStyleSheet* styleSheet = pageStyleSheet();
if (!styleSheet)
return 0;
RefPtr<InspectorObject> result = InspectorObject::create();
result->setString("selectorText", rule->selectorText());
result->setString("cssText", rule->cssText());
result->setNumber("sourceLine", rule->sourceLine());
result->setString("documentURL", m_documentURL);
RefPtr<InspectorObject> parentStyleSheetValue = InspectorObject::create();
parentStyleSheetValue->setString("id", id());
parentStyleSheetValue->setString("href", styleSheet->href());
result->setObject("parentStyleSheet", parentStyleSheetValue.release());
result->setString("origin", m_origin);
RefPtr<CSSRuleSourceData> sourceData;
if (ensureParsedDataReady())
sourceData = ruleSourceDataFor(rule->style());
if (sourceData) {
result->setNumber("selectorStartOffset", sourceData->selectorListRange.start);
result->setNumber("selectorEndOffset", sourceData->selectorListRange.end);
}
result->setObject("style", buildObjectForStyle(rule->style()));
if (canBind())
result->setString("id", fullRuleId(rule));
return result.release();
}
void
HTMLLinkElement::SetDisabled(bool aDisabled)
{
CSSStyleSheet* ss = GetSheet();
if (ss) {
ss->SetDisabled(aDisabled);
}
}
CSSStyleSheet::CSSStyleSheet(CSSRule* ownerRule, const String& href, const KURL& baseURL, const String& charset)
: StyleSheet(ownerRule, href, baseURL)
, m_charset(charset)
, m_loadCompleted(false)
, m_strictParsing(!ownerRule || ownerRule->useStrictParsing())
, m_hasSyntacticallyValidCSSHeader(true)
{
CSSStyleSheet* parentSheet = ownerRule ? ownerRule->parentStyleSheet() : 0;
m_isUserStyleSheet = parentSheet ? parentSheet->isUserStyleSheet() : false;
}
CSSStyleSheet::CSSStyleSheet(CSSRule *ownerRule, const String& href, const String& charset)
: StyleSheet(ownerRule, href)
, m_namespaces(0)
, m_charset(charset)
, m_loadCompleted(false)
, m_strictParsing(!ownerRule || ownerRule->useStrictParsing())
{
CSSStyleSheet* parentSheet = ownerRule ? ownerRule->parentStyleSheet() : 0;
m_doc = parentSheet ? parentSheet->doc() : 0;
}
CSSStyleSheet::CSSStyleSheet(StyleRuleImport* ownerRule, const String& href, const KURL& baseURL, const String& charset)
: StyleSheet(href, baseURL)
, m_ownerRule(ownerRule)
, m_charset(charset)
, m_loadCompleted(false)
, m_cssParserMode((ownerRule && ownerRule->parentStyleSheet()) ? ownerRule->parentStyleSheet()->cssParserMode() : CSSStrictMode)
, m_hasSyntacticallyValidCSSHeader(true)
, m_didLoadErrorOccur(false)
{
CSSStyleSheet* parentSheet = ownerRule ? ownerRule->parentStyleSheet() : 0;
m_isUserStyleSheet = parentSheet ? parentSheet->isUserStyleSheet() : false;
}
void
nsStyleLinkElement::UpdateStyleSheetScopedness(bool aIsNowScoped)
{
if (!mStyleSheet) {
return;
}
if (mStyleSheet->IsServo()) {
// XXXheycam ServoStyleSheets don't support <style scoped>.
NS_ERROR("stylo: ServoStyleSheets don't support <style scoped>");
return;
}
CSSStyleSheet* sheet = mStyleSheet->AsGecko();
nsCOMPtr<nsIContent> thisContent;
CallQueryInterface(this, getter_AddRefs(thisContent));
Element* oldScopeElement = sheet->GetScopeElement();
Element* newScopeElement = aIsNowScoped ?
thisContent->GetParentElement() :
nullptr;
if (oldScopeElement == newScopeElement) {
return;
}
nsIDocument* document = thisContent->GetOwnerDocument();
if (thisContent->IsInShadowTree()) {
ShadowRoot* containingShadow = thisContent->GetContainingShadow();
containingShadow->RemoveSheet(mStyleSheet);
sheet->SetScopeElement(newScopeElement);
containingShadow->InsertSheet(mStyleSheet, thisContent);
} else {
document->BeginUpdate(UPDATE_STYLE);
document->RemoveStyleSheet(mStyleSheet);
sheet->SetScopeElement(newScopeElement);
document->AddStyleSheet(mStyleSheet);
document->EndUpdate(UPDATE_STYLE);
}
if (oldScopeElement) {
UpdateIsElementInStyleScopeFlagOnSubtree(oldScopeElement);
}
if (newScopeElement) {
newScopeElement->SetIsElementInStyleScopeFlagOnSubtree(true);
}
}
static v8::Handle<v8::Value> rulesAttrGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
{
CSSStyleSheet* imp = V8CSSStyleSheet::toNative(info.Holder());
RefPtr<CSSRuleList> result = imp->rules();
v8::Handle<v8::Value> wrapper = result.get() ? v8::Handle<v8::Value>(DOMDataStore::getWrapper(result.get(), info.GetIsolate())) : v8Undefined();
if (wrapper.IsEmpty()) {
wrapper = toV8(result.get(), info.Holder(), info.GetIsolate());
if (!wrapper.IsEmpty())
V8DOMWrapper::setNamedHiddenReference(info.Holder(), "rules", wrapper);
}
return wrapper;
}
void ElementRuleCollector::appendCSSOMWrapperForRule(StyleRule* rule)
{
// FIXME: There should be no codepath that creates a CSSOMWrapper without a parent stylesheet or rule because
// then that codepath can lead to the CSSStyleSheet contents not getting correctly copied when the rule is modified
// through the wrapper (e.g. rule.selectorText="div"). Right now, the inspector uses the pointers for identity though,
// so calling CSSStyleSheet->willMutateRules breaks the inspector.
CSSStyleSheet* sheet = m_includeStyleSheet == IncludeStyleSheetInCSSOMWrapper ? findStyleSheet(m_context.element()->document().styleEngine(), rule) : 0;
RefPtr<CSSRule> cssRule = rule->createCSSOMWrapper(sheet);
if (sheet)
sheet->registerExtraChildRuleCSSOMWrapper(cssRule);
ensureRuleList()->rules().append(cssRule);
}
static v8::Handle<v8::Value> rulesAttrGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
{
INC_STATS("DOM.CSSStyleSheet.rules._get");
CSSStyleSheet* imp = V8CSSStyleSheet::toNative(info.Holder());
RefPtr<CSSRuleList> result = imp->rules();
v8::Handle<v8::Value> wrapper = result.get() ? getDOMObjectMap().get(result.get()) : v8::Handle<v8::Value>();
if (wrapper.IsEmpty()) {
wrapper = toV8(result.get());
if (!wrapper.IsEmpty())
V8DOMWrapper::setNamedHiddenReference(info.Holder(), "rules", wrapper);
}
return wrapper;
}
TEST_F(ApplyRulesetsTest, AddShadowV0BoundaryCrossingRuleToDocument) {
document().view()->updateAllLifecyclePhases();
CSSStyleSheet* sheet = createSheet(".a /deep/ .b { color:red }");
ActiveStyleSheetVector newStyleSheets;
newStyleSheets.append(std::make_pair(sheet, &sheet->contents()->ruleSet()));
applyRuleSetChanges(styleEngine(), document(), ActiveStyleSheetVector(),
newStyleSheets);
EXPECT_EQ(SubtreeStyleChange, document().getStyleChangeType());
}
JSValue* jsCSSStyleSheetPrototypeFunctionRemoveRule(ExecState* exec, JSObject*, JSValue* thisValue, const ArgList& args)
{
if (!thisValue->isObject(&JSCSSStyleSheet::s_info))
return throwError(exec, TypeError);
JSCSSStyleSheet* castedThisObj = static_cast<JSCSSStyleSheet*>(thisValue);
CSSStyleSheet* imp = static_cast<CSSStyleSheet*>(castedThisObj->impl());
ExceptionCode ec = 0;
unsigned index = args[0]->toInt32(exec);
imp->removeRule(index, ec);
setDOMException(exec, ec);
return jsUndefined();
}
void CSSStyleSheet::styleSheetChanged()
{
CSSStyleSheet* rootSheet = this;
while (CSSStyleSheet* parent = rootSheet->parentStyleSheet())
rootSheet = parent;
/* FIXME: We don't need to do everything updateStyleSelector does,
* basically we just need to recreate the document's selector with the
* already existing style sheets.
*/
if (Document* documentToUpdate = rootSheet->findDocument())
documentToUpdate->styleSelectorChanged(DeferRecalcStyle);
}
static void filterEnabledNonemptyCSSStyleSheets(Vector<RefPtr<CSSStyleSheet> >& result, const Vector<RefPtr<StyleSheet> >& sheets)
{
for (unsigned i = 0; i < sheets.size(); ++i) {
if (!sheets[i]->isCSSStyleSheet())
continue;
if (sheets[i]->disabled())
continue;
CSSStyleSheet* sheet = static_cast<CSSStyleSheet*>(sheets[i].get());
if (!sheet->length())
continue;
result.append(sheet);
}
}
JSValue JSC_HOST_CALL jsCSSStyleSheetPrototypeFunctionRemoveRule(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
UNUSED_PARAM(args);
if (!thisValue.inherits(&JSCSSStyleSheet::s_info))
return throwError(exec, TypeError);
JSCSSStyleSheet* castedThisObj = static_cast<JSCSSStyleSheet*>(asObject(thisValue));
CSSStyleSheet* imp = static_cast<CSSStyleSheet*>(castedThisObj->impl());
ExceptionCode ec = 0;
unsigned index = args.at(0).toInt32(exec);
imp->removeRule(index, ec);
setDOMException(exec, ec);
return jsUndefined();
}
static v8::Handle<v8::Value> removeRuleCallback(const v8::Arguments& args)
{
CSSStyleSheet* imp = V8CSSStyleSheet::toNative(args.Holder());
ExceptionCode ec = 0;
{
V8TRYCATCH(unsigned, index, toUInt32(MAYBE_MISSING_PARAMETER(args, 0, DefaultIsUndefined)));
imp->removeRule(index, ec);
if (UNLIKELY(ec))
goto fail;
return v8Undefined();
}
fail:
return setDOMException(ec, args.GetIsolate());
}
void SVGFontFaceElement::removeFromMappedElementSheet()
{
CSSStyleSheet* mappedElementSheet = document()->mappedElementSheet();
if (!mappedElementSheet)
return;
for (unsigned i = 0; i < mappedElementSheet->length(); ++i) {
if (mappedElementSheet->item(i) == m_fontFaceRule) {
mappedElementSheet->remove(i);
break;
}
}
document()->styleSelectorChanged(DeferRecalcStyle);
}
TEST_F(ApplyRulesetsTest, AddFontFaceRuleToDocument) {
document().view()->updateAllLifecyclePhases();
CSSStyleSheet* sheet =
createSheet("@font-face { font-family: ahum; src: url(ahum.ttf) }");
ActiveStyleSheetVector newStyleSheets;
newStyleSheets.append(std::make_pair(sheet, &sheet->contents()->ruleSet()));
applyRuleSetChanges(styleEngine(), document(), ActiveStyleSheetVector(),
newStyleSheets);
EXPECT_EQ(SubtreeStyleChange, document().getStyleChangeType());
}
static v8::Handle<v8::Value> insertRuleCallback(const v8::Arguments& args)
{
CSSStyleSheet* imp = V8CSSStyleSheet::toNative(args.Holder());
ExceptionCode ec = 0;
{
V8TRYCATCH_FOR_V8STRINGRESOURCE(V8StringResource<>, rule, MAYBE_MISSING_PARAMETER(args, 0, DefaultIsUndefined));
V8TRYCATCH(unsigned, index, toUInt32(MAYBE_MISSING_PARAMETER(args, 1, DefaultIsUndefined)));
unsigned result = imp->insertRule(rule, index, ec);
if (UNLIKELY(ec))
goto fail;
return v8UnsignedInteger(result, args.GetIsolate());
}
fail:
return setDOMException(ec, args.GetIsolate());
}
static v8::Handle<v8::Value> removeRuleCallback(const v8::Arguments& args)
{
INC_STATS("DOM.CSSStyleSheet.removeRule");
CSSStyleSheet* imp = V8CSSStyleSheet::toNative(args.Holder());
ExceptionCode ec = 0;
{
EXCEPTION_BLOCK(unsigned, index, toUInt32(MAYBE_MISSING_PARAMETER(args, 0, MissingIsUndefined)));
imp->removeRule(index, ec);
if (UNLIKELY(ec))
goto fail;
return v8::Handle<v8::Value>();
}
fail:
V8Proxy::setDOMException(ec);
return v8::Handle<v8::Value>();
}
/* static */ void
nsDOMCSSDeclaration::GetCSSParsingEnvironmentForRule(css::Rule* aRule,
CSSParsingEnvironment& aCSSParseEnv)
{
CSSStyleSheet* sheet = aRule ? aRule->GetStyleSheet() : nullptr;
if (!sheet) {
aCSSParseEnv.mPrincipal = nullptr;
return;
}
nsIDocument* document = sheet->GetOwningDocument();
aCSSParseEnv.mSheetURI = sheet->GetSheetURI();
aCSSParseEnv.mBaseURI = sheet->GetBaseURI();
aCSSParseEnv.mPrincipal = sheet->Principal();
aCSSParseEnv.mCSSLoader = document ? document->CSSLoader() : nullptr;
}
void CSSKeyframesRule::insertRule(const String& ruleText)
{
ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size());
CSSStyleSheet* styleSheet = parentStyleSheet();
BisonCSSParser parser(parserContext(), UseCounter::getFrom(styleSheet));
RefPtr<StyleKeyframe> keyframe = parser.parseKeyframeRule(styleSheet ? styleSheet->contents() : 0, ruleText);
if (!keyframe)
return;
CSSStyleSheet::RuleMutationScope mutationScope(this);
m_keyframesRule->wrapperAppendKeyframe(keyframe);
m_childRuleCSSOMWrappers.grow(length());
}