public static string MoveCssInline(string htmlInput, bool removeStyleElements, Uri basePath)
{
using (var reader = new System.IO.StringReader(htmlInput))
{
var web = new System.Net.WebClient();
var sgmlReader = new Pipes.Sgml.SgmlReader();
sgmlReader.DocType = "HTML";
sgmlReader.WhitespaceHandling = WhitespaceHandling.All;
sgmlReader.CaseFolding = CaseFolding.ToLower;
sgmlReader.InputStream = reader;
sgmlReader.SimulatedNode = "html";
sgmlReader.StripDocType = false;
var doc = new XmlDocument();
doc.Load(sgmlReader);
var root = doc.DocumentElement;
if (root.ChildNodes.OfType<XmlElement>().Count() == 1) root = root.ChildNodes.OfType<XmlElement>().Single();
var parser = new Parser();
var engine = new HtmlQueryEngine();
var visitor = new MatchVisitor(engine) { Comparison = StringComparison.OrdinalIgnoreCase };
var css = new StringBuilder();
var nodes = doc.SelectNodes("//style").OfType<System.Xml.XmlNode>().ToList();
foreach (var node in nodes)
{
css.AppendLine(node.InnerText);
if (removeStyleElements) node.ParentNode.RemoveChild(node);
}
nodes = doc.SelectNodes("//link[@rel='stylesheet' and @href]").OfType<System.Xml.XmlNode>().ToList();
foreach (var node in nodes)
{
css.Append("@import url('").Append(node.Attributes["href"].Value).Append("')");
if (node.Attributes["media"] != null && !string.IsNullOrEmpty(node.Attributes["media"].Value))
{
css.Append(" ").Append(node.Attributes["media"].Value);
}
css.AppendLine(";");
if (removeStyleElements) node.ParentNode.RemoveChild(node);
}
var stylesheet = parser.Parse(css.ToString());
var elements = root.SelectNodes("//*").OfType<XmlElement>().Select(e => new Pipes.Xml.XmlElementWrapper(e)).ToList();
var settings = new GlobalStyleContext();
settings.ResourceLoader = p => {
var href = (basePath == null ? new Uri(p) : new Uri(basePath, p));
return DownloadStream(href);
};
var rules = stylesheet.Rules.GetStyleRules(settings).ToList();
IEnumerable<StyleRule> elemRules;
string inlineStyle;
IEnumerable<Property> props;
foreach (var elem in elements)
{
inlineStyle = elem.Attribute<string>("style", null);
elemRules = rules;
if (!string.IsNullOrEmpty(inlineStyle))
{
elemRules = elemRules.Concat(Enumerable.Repeat(Utils.ParseInline(inlineStyle), 1));
}
props = elemRules.ApplicableProperties(elem, engine, StringComparison.OrdinalIgnoreCase, settings);
if (props.Any())
{
inlineStyle = props.Select(p => p.ToString()).Aggregate((p, c) => p + ";" + c);
elem.Attribute("style", inlineStyle);
}
}
return doc.OuterXml;
}
}
public static StyleRule ParseInline(string style)
{
if (string.IsNullOrEmpty(style)) return null;
var parser = new Parser();
var stylesheet = parser.Parse("a {" + style + "}");
var result = stylesheet.StyleRules.FirstOrDefault();
result.Selector = InlineSelector.Value;
return result;
}
public static void Test()
{
var parser = new Parser();
//var stylesheet = parser.Parse(System.IO.File.ReadAllText(@"C:\Users\edomke\Documents\Local_Projects\Lumen\Editing\Lumen\css\lumen.posts.css"));
var stylesheet = parser.Parse("p {font-family: Arial, 'Times New Roman', sans-serif}");
}
private void LoadSheet(object o)
{
var i = (int)o;
try
{
var parser = new Parser();
_sheets[i] = parser.Parse(_resourceLoader.Invoke(_imports[i].Href));
}
finally
{
_resets[i].Set();
}
}
