private String GetElementUrl(HtmlElement element)
{
while (element != null)
{
String url = element.GetAttribute("href");
if (!String.IsNullOrWhiteSpace(url))
{
// if the user created a relative file link without
// specifying "file:///" by editing the html directly
// then Winforms will add "about:" to the front of it
// which we need to replace with "file:///"
if (url.IndexOf("about:") == 0)
{
var parser = new UrlParser();
var htmlLinks = parser.ExtractHtmlLinks(element.OuterHtml);
if ((htmlLinks != null) && (htmlLinks.Count == 1))
{
if (htmlLinks[0].Url.IndexOf("about:") == -1)
{
url = String.Format("file:///{0}", htmlLinks[0].Url.TrimStart('/'));
element.SetAttribute("href", url);
}
}
}
return(url);
}
// else work our way up
element = element.Parent;
}
// else
return("");
}