Add support for in-document linking (e.g. #my-id).

[isaksavo]

Add support for navigating to headers inside a document.

• Enables the AutoIdentifiers markdig extension to give each header a unique anchor name. This anchor name is exposed on the header blocks as an attached dependency property.
• The LinkInlineRenderer calls Uri.TryCreate to determine if the URL is valid or not (fixes issue with links being replaced with # as described in Intra-document links not created correctly #49
  • If the link is to a header inside the same document, the command used is Navigate instead of Link
• The MarkdownViewer adds a command handler to the Navigate command which it sets to handled if the header was successfully navigated to. Otherwise the command will bubble up to whoever else is listening.
• Updated sample md file with a TOC to test this functionality

This is my first shot at this. I'm open to suggestion if you want it done in a different way.

[Kryptos-FR]

Thanks, I had a quick look and I will probably make some changes (or make suggestions) when I have time to properly review it.

It looks promising.

[ComtelJeremy]

Hello, is this something that will be added in the future? This would be very helpful for our project.

[JD-Howard]

I pulled this concept into my own customizations. This scroll into view method is fine in theory, but not always. The document start location literally shifts around; probably based on scroll state. The following is normalizing the problem I am having:

var objTop = block.ContentStart.GetCharacterRect(LogicalDirection.Forward).Top;
var docTop = _viewer.Document.ContentStart.GetCharacterRect(LogicalDirection.Forward).Top;
scrollViewer.ScrollToVerticalOffset(Math.Abs(docTop) + objTop);