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Issue #2137 - Part 3: Don't always use the internal pseudo-class for handling negations

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FranklinDM 2023-03-10 17:19:18 +08:00 • committed by roytam1
commit b257a71cce
1 changed files with 15 additions and 5 deletions
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20
layout/style/nsCSSParser.cpp
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@ -6642,11 +6642,21 @@ CSSParserImpl::ParsePseudoClassWithSelectorListArg(nsCSSSelector& aSelector,
while (negations->mNegations) {
negations = negations->mNegations;
}
// XXX: Use a special internal-only pseudo-class to handle selector lists.
// TODO: This should only happen if we don't have a simple selector.
nsCSSSelector* newSel = new nsCSSSelector();
newSel->AddPseudoClass(CSSPseudoClassType::mozAnyPrivate, slist.forget());
negations->mNegations = newSel;
// XXX: Use a special internal-only pseudo-class to handle selector lists
// if we have: (a) a complex selector, (b) nested negation pseudo-class,
// or (c) more than one selector argument in the list.
if (slist->mNext ||
slist->mSelectors->mNext ||
slist->mSelectors->mNegations) {
nsCSSSelector* newSel = new nsCSSSelector();
newSel->AddPseudoClass(CSSPseudoClassType::mozAnyPrivate,
slist.forget());
negations->mNegations = newSel;
} else {
// Otherwise, steal the first selector and add it directly to the
// end of aSelector.mNegations.
negations->mNegations = (slist.forget())->mSelectors;
}
} else {
// Add the pseudo with the selector list parameter
aSelector.AddPseudoClass(aType, slist.forget());