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Issue #1345 - Implement non-standard legacy CSSStyleSheet rules

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JustOff 2020-01-07 13:05:05 +02:00 • committed by Roy Tam
commit 13aff00f59
3 changed files with 37 additions and 0 deletions
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26
layout/style/StyleSheet.cpp
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@ -259,6 +259,32 @@ StyleSheet::DeleteRule(uint32_t aIndex,
FORWARD_INTERNAL(DeleteRuleInternal, (aIndex, aRv))
}
int32_t
StyleSheet::AddRule(const nsAString& aSelector, const nsAString& aBlock,
const Optional<uint32_t>& aIndex,
nsIPrincipal& aSubjectPrincipal, ErrorResult& aRv)
{
if (!AreRulesAvailable(aSubjectPrincipal, aRv)) {
return -1;
}
nsAutoString rule;
rule.Append(aSelector);
rule.AppendLiteral(" { ");
if (!aBlock.IsEmpty()) {
rule.Append(aBlock);
rule.Append(' ');
}
rule.Append('}');
auto index =
aIndex.WasPassed() ? aIndex.Value() : GetCssRules(aSubjectPrincipal, aRv)->Length();
FORWARD_INTERNAL(InsertRuleInternal, (rule, index, aRv));
// As per Microsoft documentation, always return -1.
return -1;
}
#undef FORWARD_INTERNAL
void