private static Inline CreateLinkToFootnote(InlineProcessor state, LinkReferenceDefinition linkRef, Inline?child)
{
var footnote = ((FootnoteLinkReferenceDefinition)linkRef).Footnote;
if (footnote.Order < 0)
{
var footnotes = (FootnoteGroup)state.Document.GetData(DocumentKey) !;
footnotes.CurrentOrder++;
footnote.Order = footnotes.CurrentOrder;
}
var link = new FootnoteLink(footnote);
footnote.Links.Add(link);
return(link);
}
/// <summary>
/// Add footnotes to the end of the document
/// </summary>
/// <param name="state">The processor.</param>
/// <param name="inline">The inline.</param>
private void Document_ProcessInlinesEnd(InlineProcessor state, Inline inline)
{
// Unregister
state.Document.ProcessInlinesEnd -= Document_ProcessInlinesEnd;
var footnotes = ((FootnoteGroup)state.Document.GetData(DocumentKey));
// Remove the footnotes from the document and readd them at the end
state.Document.Remove(footnotes);
state.Document.Add(footnotes);
state.Document.RemoveData(DocumentKey);
footnotes.Sort(
(leftObj, rightObj) =>
{
var left = (Footnote)leftObj;
var right = (Footnote)rightObj;
return(left.Order >= 0 && right.Order >= 0
? left.Order.CompareTo(right.Order)
: 0);
});
int linkIndex = 0;
for (int i = 0; i < footnotes.Count; i++)
{
var footnote = (Footnote)footnotes[i];
if (footnote.Order < 0)
{
// Remove this footnote if it doesn't have any links
footnotes.RemoveAt(i);
i--;
continue;
}
// Insert all footnote backlinks
var paragraphBlock = footnote.LastChild as ParagraphBlock;
if (paragraphBlock == null)
{
paragraphBlock = new ParagraphBlock();
footnote.Add(paragraphBlock);
}
if (paragraphBlock.Inline == null)
{
paragraphBlock.Inline = new ContainerInline();
}
foreach (var link in footnote.Links)
{
linkIndex++;
link.Index = linkIndex;
var backLink = new FootnoteLink()
{
Index = linkIndex,
IsBackLink = true,
Footnote = footnote
};
paragraphBlock.Inline.AppendChild(backLink);
}
}
}