private static XElement AddNumeration(XElement body, DocumentStyles documentStyles)
{
var levels = body.Elements().Where(documentStyles.IsLevel).ToArray();
foreach (var level in levels)
{
var newLevel = new XElement(Namespaces.Xhtml + "h4",
new XAttribute("level", documentStyles.GetLevel(level)),
//new XText(documentStyles.GetNumeration(level)),
//new XText(" "),
level.Nodes()
);
newLevel.SetAttributeValue("toc", documentStyles.GetLevelToc(newLevel));
level.ReplaceWith(newLevel);
}
return(body);
}
public static XDocument Render(XDocument document, DocumentStyles documentStyles)
{
var tocName = HttpContext.Current.Request["Toc"];
if (tocName == null)
{
var pathInfo = GetPathInfo();
if (pathInfo.StartsWith("/"))
{
pathInfo = pathInfo.Substring(1);
}
PathInfoParts = pathInfo.Split('/');
// get last PathInfo Part
CurrentTocName = PathInfoParts[PathInfoParts.Length - 1];
}
var body = document.Root.Element(Namespaces.Xhtml + "body");
body = AddNumeration(body, documentStyles);
var tocs = body.Elements().Where(documentStyles.IsLevel).ToArray();
var toc = tocs.FirstOrDefault(e => documentStyles.GetLevelToc(e) == CurrentTocName);
if (toc == null)
{
toc = tocs.FirstOrDefault();
CurrentTocName = toc?.AttributeValue("toc");
}
if (toc != null)
{
var tocText = toc.NodesAfterSelf().TakeWhile(node => !documentStyles.IsLevel(node)).ToList();
tocName = documentStyles.GetLevelToc(toc);
var innerLinks = tocText.Cast <XElement>().Descendants(Namespaces.Xhtml + "a").Where(a => a.Attribute("href") != null && a.Attribute("href").Value.StartsWith("#")).ToArray();
foreach (var innerLink in innerLinks)
{
var anchorId = innerLink.AttributeValue("href").Substring(1);
var anchor = body.Descendants(Namespaces.Xhtml + "a")
.FirstOrDefault(a => a.AttributeValue("name") == anchorId);
if (anchor != null)
{
var anchorToc = anchor.Parent.Parent; // need check is valid
if (documentStyles.IsLevel(anchorToc))
{
innerLink.SetAttributeValue("href", GetUrl(anchorToc.AttributeValue("toc")) + innerLink.AttributeValue("href"));
}
else
{
anchorToc = anchorToc.NodesBeforeSelf().Reverse().FirstOrDefault(documentStyles.IsLevel) as XElement;
if (anchorToc != null)
{
innerLink.SetAttributeValue("href", GetUrl(anchorToc.AttributeValue("toc")) + innerLink.AttributeValue("href"));
}
}
}
}
var prevLink = toc.NodesBeforeSelf().Reverse().FirstOrDefault(documentStyles.IsLevel) as XElement;
var nextLink = toc.NodesAfterSelf().FirstOrDefault(documentStyles.IsLevel) as XElement;
var navigation = new XElement(Namespaces.Xhtml + "div",
new XAttribute("class", "Navigation"),
GetLink(prevLink),
GetLink(null),
GetLink(nextLink)
);
navigation = null;
body.ReplaceNodes(
new XElement(Namespaces.Xhtml + "ul",
new XAttribute("id", "WordDocumentViewerToc"),
tocs.Select(e => new XElement(
Namespaces.Xhtml + "li",
documentStyles.GetLevelToc(e) == tocName ? new XAttribute("class", "selected") : null,
GetLink(e)))
),
navigation,
toc, tocText,
navigation);
}
return(document);
}
