MouseReferenceInfo?GetReferenceCore(MouseEventArgs e)
{
if (Keyboard.Modifiers != ModifierKeys.None && Keyboard.Modifiers != ModifierKeys.Control)
{
return(null);
}
var documentViewer = TryGetDocumentViewer();
if (documentViewer == null)
{
return(null);
}
var loc = MouseLocation.Create(documentViewer.TextView, e, insertionPosition: false);
if (loc == null)
{
return(null);
}
if (loc.Position.IsInVirtualSpace)
{
return(new MouseReferenceInfo(null, null, loc.Position));
}
int pos = loc.Position.Position.Position;
var spanData = documentViewer.Content.ReferenceCollection.Find(pos, false);
if (spanData == null)
{
return(new MouseReferenceInfo(null, spanData, loc.Position));
}
if (spanData.Value.Data.Reference == null)
{
return(new MouseReferenceInfo(null, spanData, loc.Position));
}
if (Keyboard.Modifiers != ModifierKeys.Control)
{
if (spanData.Value.Data.IsDefinition)
{
return(new MouseReferenceInfo(null, spanData, loc.Position));
}
if (spanData.Value.Data.IsLocal)
{
return(new MouseReferenceInfo(null, spanData, loc.Position));
}
}
return(new MouseReferenceInfo(spanData, spanData, loc.Position));
}
