nsresult
HTMLContentElement::SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
nsIAtom* aPrefix, const nsAString& aValue,
bool aNotify)
{
nsresult rv = nsGenericHTMLElement::SetAttr(aNameSpaceID, aName, aPrefix,
aValue, aNotify);
NS_ENSURE_SUCCESS(rv, rv);
if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::select) {
// Select attribute was updated, the insertion point may match different
// elements.
nsIDocument* doc = OwnerDoc();
nsCSSParser parser(doc->CSSLoader());
mValidSelector = true;
mSelectorList = nullptr;
nsresult rv = parser.ParseSelectorString(aValue,
doc->GetDocumentURI(),
// Bug 11240
0, // XXX get the line number!
getter_Transfers(mSelectorList));
// We don't want to return an exception if parsing failed because
// the spec does not define it as an exception case.
if (NS_SUCCEEDED(rv)) {
// Ensure that all the selectors are valid
nsCSSSelectorList* selectors = mSelectorList;
while (selectors) {
if (!IsValidContentSelectors(selectors->mSelectors)) {
// If we have an invalid selector, we can not match anything.
mValidSelector = false;
mSelectorList = nullptr;
break;
}
selectors = selectors->mNext;
}
}
ShadowRoot* containingShadow = GetContainingShadow();
if (containingShadow) {
containingShadow->DistributeAllNodes();
}
}
return NS_OK;
}
nsresult
HTMLContentElement::UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
bool aNotify)
{
nsresult rv = nsGenericHTMLElement::UnsetAttr(aNameSpaceID,
aAttribute, aNotify);
NS_ENSURE_SUCCESS(rv, rv);
if (aNameSpaceID == kNameSpaceID_None && aAttribute == nsGkAtoms::select) {
// The select attribute was removed. This insertion point becomes
// a universal selector.
mValidSelector = true;
mSelectorList = nullptr;
ShadowRoot* containingShadow = GetContainingShadow();
if (containingShadow) {
containingShadow->DistributeAllNodes();
}
}
return NS_OK;
}