using AngleSharp.Parser.Css; using System.Collections.Generic; using System.Linq; namespace AngleSharp.Dom.Css { internal abstract class CssDeclarationRule : CssRule { private readonly List<CssProperty> _declarations; private readonly string _name; internal CssDeclarationRule(CssRuleType type, string name, CssParser parser) : base(type, parser) { _declarations = new List<CssProperty>(); _name = name; } internal void SetProperty(CssProperty property) { for (int i = 0; i < _declarations.Count; i++) { if (_declarations[i].Name == property.Name) { _declarations[i] = property; return; } } _declarations.Add(property); } protected override void ReplaceWith(ICssRule rule) { CssDeclarationRule cssDeclarationRule = (CssDeclarationRule)rule; _declarations.Clear(); _declarations.AddRange(cssDeclarationRule._declarations); cssDeclarationRule._declarations.Clear(); } public override string ToCss(IStyleFormatter formatter) { string rules = formatter.Block(from m in _declarations where m.HasValue select m); return formatter.Rule("@" + _name, null, rules); } protected string GetValue(string propertyName) { foreach (CssProperty declaration in _declarations) { if (declaration.HasValue && declaration.Name == propertyName) return declaration.Value; } return string.Empty; } protected void SetValue(string propertyName, string valueText) { foreach (CssProperty declaration in _declarations) { if (declaration.Name == propertyName) { CssValue newValue = base.Parser.ParseValue(valueText); declaration.TrySetValue(newValue); break; } } } } }