using AngleSharp.Parser.Css; namespace AngleSharp.Dom.Css { internal abstract class CssGroupingRule : CssRule, ICssGroupingRule, ICssRule, IStyleFormattable { private readonly CssRuleList _rules; public CssRuleList Rules => _rules; ICssRuleList ICssGroupingRule.Rules { get { return _rules; } } internal CssGroupingRule(CssRuleType type, CssParser parser) : base(type, parser) { _rules = new CssRuleList(); } public int Insert(string rule, int index) { CssRule value = base.Parser.ParseRule(rule); _rules.Insert(value, index, base.Owner, this); return index; } public void RemoveAt(int index) { _rules.RemoveAt(index); } internal void AddRule(CssRule rule) { if (rule != null) _rules.Add(rule, base.Owner, this); } protected override void ReplaceWith(ICssRule rule) { CssGroupingRule cssGroupingRule = (CssGroupingRule)rule; _rules.Clear(); _rules.Import(cssGroupingRule._rules, base.Owner, base.Parent); } } }