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Hyperlink mit Autor-Jahr-Komp. im Beamer

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Hyperlink mit Autor-Jahr-Komp. im Beamer

Betrachten Sie das folgende MWE:

\documentclass{beamer}

\usepackage{xpatch}
\usepackage{lmodern}

\usepackage[style=authoryear-comp,backend=biber]{biblatex}
\addbibresource{biblatex-examples.bib}

\hypersetup{colorlinks=true}

% Combine label and labelyear links
\xpatchbibmacro{cite}
{\usebibmacro{cite:label}%
\setunit{\addspace}%
\usebibmacro{cite:labelyear+extrayear}}
{\printtext[bibhyperref]{%
    \DeclareFieldAlias{bibhyperref}{default}%
    \usebibmacro{cite:label}%
    \setunit{\addspace}%
    \usebibmacro{cite:labelyear+extrayear}}}{}{}

% Include labelname in labelyear link
\xpatchbibmacro{cite}
{\printnames{labelname}%
\setunit{\nameyeardelim}%
\usebibmacro{cite:labelyear+extrayear}}
{\printtext[bibhyperref]{%
    \DeclareFieldAlias{bibhyperref}{default}%
    \printnames{labelname}%
    \setunit{\nameyeardelim}%
    \usebibmacro{cite:labelyear+extrayear}}}{}{}

% Access hyperref's citation link start/end commands
\makeatletter
\protected\def\blx@imc@biblinkstart{%
\@ifnextchar[%]
    {\blx@biblinkstart}
    {\blx@biblinkstart[\abx@field@entrykey]}}
\def\blx@biblinkstart[#1]{%
\blx@sfsave\hyper@natlinkstart{\the\c@refsection @#1}\blx@sfrest}
\protected\def\blx@imc@biblinkend{%
\blx@sfsave\hyper@natlinkend\blx@sfrest}
\blx@regimcs{\biblinkstart \biblinkend}
\makeatother

\newbool{cbx:link}

% Include parentheses around labelyear in \textcite only in
% single citations without pre- and postnotes
\def\iflinkparens{%
\ifboolexpr{ test {\ifnumequal{\value{multicitetotal}}{0}} and
            test {\ifnumequal{\value{citetotal}}{1}} and
            test {\iffieldundef{prenote}} and
            test {\iffieldundef{postnote}} }}

\xpatchbibmacro{textcite}
{\printnames{labelname}}
{\iflinkparens
    {\DeclareFieldAlias{bibhyperref}{default}%
    \global\booltrue{cbx:link}\biblinkstart%
    \printnames{labelname}}
    {\printtext[bibhyperref]{\printnames{labelname}}}}{}{}

\xpatchbibmacro{textcite}
{\usebibmacro{cite:label}}
{\iflinkparens
    {\DeclareFieldAlias{bibhyperref}{default}%
    \global\booltrue{cbx:link}\biblinkstart%
    \usebibmacro{cite:label}}
    {\usebibmacro{cite:label}}}{}{}

\xpretobibmacro{textcite:postnote}
{\ifbool{cbx:link}% patch 2.7+
    {\ifbool{cbx:parens}
        {\bibcloseparen\global\boolfalse{cbx:parens}}
        {}%
        \biblinkend\global\boolfalse{cbx:link}}
        {}}
{}
{\xpatchbibmacro{textcite}% patch earlier releases
    {\setunit{%
        \ifbool{cbx:parens}
        {\bibcloseparen\global\boolfalse{cbx:parens}}
        {}%
        \multicitedelim}}
    {\ifbool{cbx:link}
        {\ifbool{cbx:parens}
        {\bibcloseparen\global\boolfalse{cbx:parens}}
        {}%
        \biblinkend\global\boolfalse{cbx:link}}
        {}%
    \setunit{%
        \ifbool{cbx:parens}
        {\bibcloseparen\global\boolfalse{cbx:parens}}
        {}%
        \multicitedelim}}
    {}{}}

\begin{document}
\begin{frame}
  \textcite{knuth:ct:e}
\end{frame}
\begin{frame}
  \frametitle{Bibliography}
  \printbibliography
\end{frame}
\end{document}

Da ich möchte, dass Hyperlinks in Zitaten den Namen des Autors und nicht nur das Jahr enthalten, verwende ich nach der Zeile, die mit beginnt \hypersetup, den Code in diesemAntwort. Allerdings erhalte ich dabei die Fehlermeldung: Undefined control sequence.

Das Problem liegt möglicherweise an diesem Teil des Codes:

\xpatchbibmacro{textcite}
    {\printnames{labelname}}
    {\iflinkparens
        {\DeclareFieldAlias{bibhyperref}{default}%
        \global\booltrue{cbx:link}\biblinkstart%
        \printnames{labelname}}
        {\printtext[bibhyperref]{\printnames{labelname}}}}{}{}

Wenn ich es entferne, verschwindet der Fehler, aber ich erziele nicht das gewünschte Ergebnis, indem ich sowohl den Autor als auch das Jahr als Hyperlink einfüge.

Antwort1

Wenn Sie den problematischen Teil Ihres Codes ersetzen durch

\xpatchbibmacro{textcite}
{\printnames{labelname}}
{\printtext[bibhyperref]{\printnames{labelname}}}{}{}

Sie erhalten einen anklickbaren Autorennamen und das Jahr. Nur das Leerzeichen dazwischen und die Klammern bleiben nicht anklickbar. Ist das ausreichend anklickbar?

Bildbeschreibung hier eingeben

\documentclass{beamer}

\usepackage{xpatch}
\usepackage{lmodern}

\usepackage[style=authoryear-comp,backend=biber]{biblatex}
\addbibresource{biblatex-examples.bib}

\hypersetup{colorlinks=true}

% Combine label and labelyear links
\xpatchbibmacro{cite}
{\usebibmacro{cite:label}%
    \setunit{\addspace}%
    \usebibmacro{cite:labelyear+extrayear}}
{\printtext[bibhyperref]{%
        \DeclareFieldAlias{bibhyperref}{default}%
        \usebibmacro{cite:label}%
        \setunit{\addspace}%
        \usebibmacro{cite:labelyear+extrayear}}}{}{}

% Include labelname in labelyear link
\xpatchbibmacro{cite}
{\printnames{labelname}%
    \setunit{\nameyeardelim}%
    \usebibmacro{cite:labelyear+extrayear}}
{\printtext[bibhyperref]{%
        \DeclareFieldAlias{bibhyperref}{default}%
        \printnames{labelname}%
        \setunit{\nameyeardelim}%
        \usebibmacro{cite:labelyear+extrayear}}}{}{}

% Access hyperref's citation link start/end commands
\makeatletter
\protected\def\blx@imc@biblinkstart{%
    \@ifnextchar[%]
    {\blx@biblinkstart}
    {\blx@biblinkstart[\abx@field@entrykey]}}
\def\blx@biblinkstart[#1]{%
    \blx@sfsave\hyper@natlinkstart{\the\c@refsection @#1}\blx@sfrest}
\protected\def\blx@imc@biblinkend{%
    \blx@sfsave\hyper@natlinkend\blx@sfrest}
\blx@regimcs{\biblinkstart \biblinkend}
\makeatother

\newbool{cbx:link}

% Include parentheses around labelyear in \textcite only in
% single citations without pre- and postnotes
\def\iflinkparens{%
    \ifboolexpr{ test {\ifnumequal{\value{multicitetotal}}{0}} and
        test {\ifnumequal{\value{citetotal}}{1}} and
        test {\iffieldundef{prenote}} and
        test {\iffieldundef{postnote}} }}

%\xpatchbibmacro{textcite}
%{\printnames{labelname}}
%{\iflinkparens
%   {\DeclareFieldAlias{bibhyperref}{default}%
%       \global\booltrue{cbx:link}\biblinkstart%
%       \printnames{labelname}}
%   {\printtext[bibhyperref]{\printnames{labelname}}}}{}{}

\xpatchbibmacro{textcite}
{\printnames{labelname}}
{\printtext[bibhyperref]{\printnames{labelname}}}{}{}

\xpatchbibmacro{textcite}
{\usebibmacro{cite:label}}
{\iflinkparens
    {\DeclareFieldAlias{bibhyperref}{default}%
        \global\booltrue{cbx:link}\biblinkstart%
        \usebibmacro{cite:label}}
    {\usebibmacro{cite:label}}}{}{}

\xpretobibmacro{textcite:postnote}
{\ifbool{cbx:link}% patch 2.7+
    {\ifbool{cbx:parens}
        {\bibcloseparen\global\boolfalse{cbx:parens}}
        {}%
        \biblinkend\global\boolfalse{cbx:link}}
    {}}
{}
{\xpatchbibmacro{textcite}% patch earlier releases
    {\setunit{%
            \ifbool{cbx:parens}
            {\bibcloseparen\global\boolfalse{cbx:parens}}
            {}%
            \multicitedelim}}
    {\ifbool{cbx:link}
        {\ifbool{cbx:parens}
            {\bibcloseparen\global\boolfalse{cbx:parens}}
            {}%
            \biblinkend\global\boolfalse{cbx:link}}
        {}%
        \setunit{%
            \ifbool{cbx:parens}
            {\bibcloseparen\global\boolfalse{cbx:parens}}
            {}%
            \multicitedelim}}
    {}{}}

\begin{document}
    \begin{frame}
        \textcite{knuth:ct:e}
    \end{frame}
    \begin{frame}
        \frametitle{Bibliography}
        \printbibliography
    \end{frame}
\end{document}

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