private Dictionary <IElement, List <StyleClass> > SortBySpecificity(
Dictionary <IElement, List <StyleClass> > styles)
{
var result = new Dictionary <IElement, List <StyleClass> >();
foreach (var style in styles)
{
if (style.Key.Attributes != null)
{
var sortedStyles = style.Value.OrderBy(x => _cssSelectorParser.GetSelectorSpecificity(x.Name)).ThenBy(x => x.Position).ToList();
var styleAttr = style.Key.Attributes["style"];
if (styleAttr == null || String.IsNullOrWhiteSpace(styleAttr.Value))
{
style.Key.SetAttribute("style", String.Empty);
}
else // Ensure that existing inline styles always win.
{
sortedStyles.Add(_cssParser.ParseStyleClass("inline", styleAttr.Value));
}
result[style.Key] = sortedStyles;
}
}
return(result);
}
private int GetSelectorSpecificity(Dictionary <string, int> cache, string selector)
{
selector = selector ?? "";
int specificity;
if (!cache.TryGetValue(selector, out specificity))
{
specificity = _cssSelectorParser.GetSelectorSpecificity(selector);
cache[selector] = specificity;
}
return(specificity);
}
/// <summary>
/// Static method to quickly find the specificity of a single CSS selector.<para/>
/// Don't use this when parsing a lot of selectors, create an instance of <see cref="CssSelectorParser"/> and use that instead.
/// </summary>
/// <param name="selector">CSS Selector</param>
/// <returns>Specificity score of the given selector.</returns>
public static int SelectorSpecificity(string selector)
{
var instance = new CssSelectorParser();
return(instance.GetSelectorSpecificity(selector));
}
/// <summary>
/// Static method to quickly find the specificity of a single CSS selector.<para/>
/// Don't use this when parsing a lot of selectors, create an instance of <see cref="CssSelectorParser"/> and use that instead.
/// </summary>
/// <param name="selector">CSS Selector</param>
/// <returns>Specificity score of the given selector.</returns>
public static int SelectorSpecificity(string selector)
{
var instance = new CssSelectorParser();
return instance.GetSelectorSpecificity(selector);
}