using AngleSharp.Extensions; using AngleSharp.Parser.Css; using System.Collections.Generic; using System.Linq; namespace AngleSharp.Dom.Css { internal abstract class CssDeclarationRule : CssRule { private readonly string _name; public IEnumerable<CssProperty> Declarations => base.Children.OfType<CssProperty>(); internal CssDeclarationRule(CssRuleType type, string name, CssParser parser) : base(type, parser) { _name = name; } internal void SetProperty(CssProperty property) { foreach (CssProperty declaration in Declarations) { if (declaration.Name.Is(property.Name)) { ReplaceChild(declaration, property); return; } } AppendChild(property); } 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.Is(propertyName)) return declaration.Value; } return string.Empty; } protected void SetValue(string propertyName, string valueText) { foreach (CssProperty declaration in Declarations) { if (declaration.Name.Is(propertyName)) { CssValue newValue = base.Parser.ParseValue(valueText); declaration.TrySetValue(newValue); break; } } } } }