/// <summary>
/// Computes the cascaded style, i.e. resolves the cascade by ordering after specifity.
/// Two rules with the same specifity are ordered according to their appearance. The more
/// recent declaration wins. Inheritance is not taken into account.
/// </summary>
/// <param name="styleCollection">The style rules to apply.</param>
/// <param name="element">The element to compute the cascade for.</param>
/// <returns>Returns the cascaded read-only style declaration.</returns>
public static ICssStyleDeclaration ComputeCascadedStyle(this StyleCollection styleCollection, IElement element)
{
var computedStyle = new CssStyleDeclaration(element.Owner?.Context);
var rules = styleCollection.SortBySpecificity(element);
foreach (var rule in rules)
{
var inlineStyle = rule.Style;
computedStyle.SetDeclarations(inlineStyle);
}
if (element is IHtmlElement || element is ISvgElement)
{
computedStyle.SetDeclarations(element.GetStyle());
}
return(computedStyle);
}