How to have a biblatex citation in a figure caption appear as such in the list of figures?

Question

At my work place we have an official LaTeX document class that we are supposed to use. I am writing a report using this class and biblatex for my references. It works great, except for one quirk: in the list of figures, citations appearing within captions are replaced by the label of the corresponding bibtex entry. To illustrate, consider the following MWE, with the class file stripped down to the very bare minimum:

\begin{filecontents*}{\jobname.bib}
@Article{foo1970,
  author =   {Foo, B. and others},
  title =    {Frobtzing the frob},
  journal =      "J.\ Frob.",
  year =     1970}
\end{filecontents*}

\begin{filecontents*}{mweclass.cls}
\def\fileversion{2.0}
\def\filedate{2010/06/15}
\def\docdate {2010/06/15}
\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{mweclass}[\filedate\space v\fileversion\space MWE class]

\ProcessOptions\relax

\LoadClassWithOptions{article}

\AtBeginDocument{
  \listoffigures
  \clearpage
}
\end{filecontents*}

\documentclass{mweclass}

\usepackage[backend=biber,style=authoryear]{biblatex}
\usepackage[demo]{graphicx}

\addbibresource{\jobname.bib}

\begin{document}

\begin{figure}
  \centering
  \includegraphics{test}
  \caption{This cites \textcite{foo1970}.}
\end{figure}

\printbibliography[heading=bibnumbered]

\end{document}

If I compile this (with pdflatex), I get this:

However, if I move the \AtBeginDocument command out of the class file and I put it right before \begin{document}, I get the expected result:

I have tried \protecting the \textcite command, but it does not make any difference.

As per @moewe's suggestion, I also tried adding the following snippet to the class file (from his/her answer to this question):

\AtEndPreamble{%
  \addtocontents{toc}{%
    \booltrue{citerequest}\relax}%
  \addtocontents{lof}{%
    \booltrue{citerequest}\relax}%
  \addtocontents{lot}{%
    \booltrue{citerequest}\relax}}

but unfortunately it makes no difference as long as the \AtBeginDocument command appears in the class file (and actually results in some undefined references).

What's up with this? How do I convince pdflatex to put the same text in the list of figures and in the figure caption?

Please check cite in listoffigures showing only the key when not “initialised” and let us know if the solution there worked for you. — moewe, Oct 19 '16 at 22:17
Mhhh, OK. But as far as I understand your question the MWE actually works for you (it did for me when I used a .bib file I had on my PC) and it is only with your custom class (which you don't show) that it doesn't work. Please try to isolate which bit of your custom class causes the behaviour as otherwise we will have to resort to speculations not knowing your class at all. — moewe, Oct 19 '16 at 22:34
I completely revised the question and provided a more cogent MWE. — Arek' Fu, Oct 20 '16 at 06:14
Don't use \AtBeginDocument to insert your \listoffigures before you load biblatex... — Paul Gaborit, Oct 20 '16 at 07:16
Unfortunately it's in the document class I must use. I can propose to fix the class, but how do I do that without \RequirePackage{biblatex} (which would force all users to use biblatex)? — Arek' Fu, Oct 20 '16 at 07:38

score 2 · Accepted Answer · answered Oct 20 '16 at 08:15

You may fix your class using etoolbox package (to use \AtEndPreamble):

\begin{filecontents*}{\jobname.bib}
@Article{foo1970,
  author =   {Foo, B. and others},
  title =    {Frobtzing the frob},
  journal =      "J.\ Frob.",
  year =     1970}
\end{filecontents*}

\begin{filecontents*}{mweclass.cls}
\def\fileversion{2.0}
\def\filedate{2010/06/15}
\def\docdate {2010/06/15}
\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{mweclass}[\filedate\space v\fileversion\space MWE class]

\ProcessOptions\relax

\LoadClassWithOptions{article}

\RequirePackage{etoolbox}
\AtEndPreamble{
  \AtBeginDocument{
    \listoffigures
    \clearpage
  }
}

\end{filecontents*}

\documentclass{mweclass}

\usepackage[demo]{graphicx}

\usepackage[backend=biber,style=authoryear]{biblatex}

\AtEndPreamble{%
  \addtocontents{toc}{%
    \booltrue{citerequest}\relax}%
  \addtocontents{lof}{%
    \booltrue{citerequest}\relax}%
  \addtocontents{lot}{%
    \booltrue{citerequest}\relax}}

\addbibresource{\jobname.bib}

\begin{document}

\begin{figure}
  \centering
  \includegraphics{test}
  \caption{This cites \protect\textcite{foo1970}.}
\end{figure}

\printbibliography[heading=bibnumbered]

\end{document}

This works! I had to move around some \newcolumntype commands in the original class file and I do not really understand why, but it solved my problem. — Arek' Fu, Oct 20 '16 at 11:06
Incidentally, I don't need the \addtocontents{*}{\booltrue{citerequest}\relax} commands. It works fine without them. — Arek' Fu, Oct 20 '16 at 14:59

How to have a biblatex citation in a figure caption appear as such in the list of figures?

1 Answers1