Underlined hyperlinks displayed on every slide of a frame

[dbitouze]

(Not sure if this issue should be reported here or on hyperref repository.)

The following MCE points out that hyperlinks, if underlined, are displayed on every slide of a frame, even if they shouldn't be.

\documentclass{beamer}
\hypersetup{colorlinks=false,pdfborderstyle={/S/U/W 1}}
\begin{document}
\begin{frame}
  foo
  \pause{}%
  \href{bar}{bar}
\end{frame}
\end{document}

[samcarter]

If at all possible, I would avoid changing the hypersetup for beamer. This would influence all kinds of elements like navigation symbols, head- and footlines ...

Why not underline the links you need?

\documentclass{beamer}
%\hypersetup{colorlinks=false,pdfborderstyle={/S/U/W 1}}
\usepackage{soul}
\begin{document}
\begin{frame}
  foo
  \pause{}%
 \href{bar}{\ul{bar}}
\end{frame}
\end{document}

[dbitouze]

The problem is: it is a pain if you need to underline all the links :smiley:

[samcarter]

How about defining a new command instead of \href that underlines them?

[dbitouze]

In fact, not only \href hyperlinks are concerned. For instance (and in my real use case), also hyperlinks provided by the tcolorbox's documentation library (such as the ones generated by \refCom); but maybe specifically for these tcolorbox hyperlinks, I should open an issue there.

[samcarter]

Could you make a MWE? Maybe one can find some workaround?

[dbitouze]

Oooops, sorry, I see your message too late: I reported an issue on tcolorbox repository.

But here is a MCE with beamer:

\documentclass{beamer}
\usepackage{tcolorbox}
\tcbuselibrary{documentation}

\tcbset{color command=red, color key=blue}

\hypersetup{colorlinks=false,pdfborderstyle={/S/U/W 1}}

\begin{document}

\begin{frame}
  \begin{docCommand}{foomakedocSubKey}{\marg{name}\marg{key path}}
  \end{docCommand}

  \pause{}

  See \refCom*{foomakedocSubKey}
\end{frame}
\end{document}

[samcarter]

You could add the underline to the definition of the \ref...* commands:

\documentclass{beamer}
\usepackage{tcolorbox}
\tcbuselibrary{documentation}

\makeatletter
\ExplSyntaxOn   
\DeclareDocumentCommand\tcb@ref@doc{msm}{%
  \hyperref[#1:#3]{\ttfamily\underline{\ref*{#1:#3}}%
  \IfBooleanTF{#2}{}{%
    \ifnum\getpagerefnumber{#1:#3}=\thepage%
    \else%
      \textsuperscript{\ding{213}\,\kvtcb@text@pageshort\,\pageref*{#1:#3}}%
    \fi}}%
}
\ExplSyntaxOff   
\makeatother

\begin{document}

\begin{frame}
  \begin{docCommand}{foomakedocSubKey}{\marg{name}\marg{key path}}
  \end{docCommand}

  \pause{}

  See \refCom*{foomakedocSubKey} and
\end{frame}
\end{document}

And if one already goes there and modifies the definition, one could also remove the pageref to solve your problem with the unstarred version of \refCom and beamer (https://github.com/T-F-S/tcolorbox/issues/63):

\documentclass{beamer}
\usepackage{tcolorbox}
\tcbuselibrary{documentation}

\makeatletter
\ExplSyntaxOn   
\DeclareDocumentCommand\tcb@ref@doc{msm}{%
  \hyperref[#1:#3]{\ttfamily\underline{\ref*{#1:#3}}}%
}
\ExplSyntaxOff   
\makeatother

\begin{document}

\begin{frame}
  \begin{docCommand}{foomakedocSubKey}{\marg{name}\marg{key path}}
  \end{docCommand}

  \pause{}

  See \refCom{foomakedocSubKey} and
\end{frame}
\end{document}

[dbitouze]

You could add the underline to the definition of the \ref...* commands:

Nice indeed! :smile: Thanks!

Nevertheless, I'm not sure this issue has to be considered as closed...