% Copyright 2003--2007 by Till Tantau
% Copyright 2010 by Vedran Mileti\'c
% Copyright 2017 by Joseph Wright
%
% This file may be distributed and/or modified
%
% 1. under the LaTeX Project Public License and/or
% 2. under the GNU Public License.
%
% See the file doc/licenses/LICENSE for more details.

%
% Template Installation Commands
%

\def\usebeamertemplate{\@ifstar{\beamer@usebeamertemplates}{\beamer@usebeamertemplatedo}}
\def\beamer@usebeamertemplates{\@ifstar{\beamer@usebeamertemplatess}{\beamer@usebeamertemplatedos}}
\def\beamer@usebeamertemplatess{\@ifstar{\beamer@usebeamertemplatedosss}{\beamer@usebeamertemplatedoss}}
\def\beamer@usebeamertemplatedo#1{\csname beamer@@tmpl@#1\endcsname}
\def\beamer@usebeamertemplatedos#1{{{\usebeamerfont{#1}\usebeamercolor[fg]{#1}\csname beamer@@tmpl@#1\endcsname}}}
\def\beamer@usebeamertemplatedoss#1{{{\usebeamerfont{#1}\usebeamercolor*[fg]{#1}\csname beamer@@tmpl@#1\endcsname}}}
\def\beamer@usebeamertemplatedosss#1{{{\usebeamerfont*{#1}\usebeamercolor*[fg]{#1}\csname beamer@@tmpl@#1\endcsname}}}

\long\def\beamer@@empty{}
\def\expandbeamertemplate#1{\csname beamer@@tmpl@#1\endcsname}
\def\ifbeamertemplateempty#1#2#3{%
  \def\beamer@ifdo{#3}%
  \expandafter\ifx\csname beamer@@tmpl@#1\endcsname\relax\def\beamer@ifdo{#2}\fi%
  \expandafter\ifx\csname beamer@@tmpl@#1\endcsname\beamer@@empty\def\beamer@ifdo{#2}\fi%
  \beamer@ifdo}


\mode
<article>
{
  % the following do the same in article mode:
  \let\beamer@usebeamertemplatedosss=\beamer@usebeamertemplatedo
  \let\beamer@usebeamertemplatedoss=\beamer@usebeamertemplatedo
  \let\beamer@usebeamertemplatedos=\beamer@usebeamertemplatedo
}


\newif\ifbeamer@sbt
\newtoks\beamer@sbttoks

\newcommand<>\defbeamertemplate{
  \ifblank{#1}
  {\def\beamer@@oar{<presentation>}}
  {\def\beamer@@oar{#1}}\beamer@defbeamertemplate}
\def\beamer@defbeamertemplate{\@ifstar{\beamer@sbttrue\beamer@sbtoo}{\beamer@sbtfalse\beamer@sbtoo}}
\def\beamer@sbtoo#1#2{\@ifnextchar[{\beamer@sbto{#1}{#2}}{\beamer@sbto{#1}{#2}[0]}}
\def\beamer@sbto#1#2[#3]{\@ifnextchar[{\beamer@@sbto{#1}{#2}[{#3}]}{\def\beamer@sbtotemp{}\beamer@@@sbto{#1}{#2}[{#3}]}}
\long\def\beamer@@sbto#1#2[#3][#4]{\long\def\beamer@sbtotemp{[{#4}]}\beamer@@@sbto{#1}{#2}[{#3}]}
\long\def\beamer@@@sbto#1#2[#3]#4{%
  \beamer@sbttoks={\beamer@@@@sbto{#1}{#2}[{#3}]{#4}}%
  \@ifnextchar[{\the\beamer@sbttoks}{\the\beamer@sbttoks[action]{}}%
}
\long\def\beamer@@@@sbto#1#2[#3]#4[#5]#6{%
  \edef\beamer@@sbtoarg{\expandafter\noexpand\csname beamer@@tmpop@#1@#2\endcsname[{#3}]}%
  \expandafter\expandafter\expandafter\newcommand\expandafter\beamer@@sbtoarg\beamer@sbtotemp{%
    \expandafter\long\expandafter\def\csname beamer@@tmpl@#1\endcsname{#4}#6}%
  \let\beamer@@next=\beamer@resetsbtoarg%
  \expandafter\mode\beamer@@oar{\let\beamer@@next=\relax}%
  \beamer@@next%
  \ifbeamer@sbt\setbeamertemplate{#1}[{#2}]\relax\relax\relax\relax\relax\relax\relax\relax\relax\fi%
}
\def\beamer@resetsbtoarg{%
  \expandafter\expandafter\expandafter\renewcommand\expandafter\beamer@@sbtoarg\beamer@sbtotemp{}
}

\def\defbeamertemplatealias#1#2#3{%
  \edef\beamer@@temp{\def\expandafter\noexpand\csname beamer@@tmpop@#1@#2\endcsname{\expandafter\noexpand\csname beamer@@tmpop@#1@#3\endcsname}}%
  \beamer@@temp}


\def\defbeamertemplateparent#1{\@ifnextchar[{\beamer@sbtoparo{#1}}{\beamer@sbtoparo{#1}[*]}}
\def\beamer@sbtoparo#1[#2]#3{\@ifnextchar[{\beamer@sbtopar{#1}[{#2}]{#3}}{\beamer@sbtopar{#1}[{#2}]{#3}[0]}}
\def\beamer@sbtopar#1[#2]#3[#4]{\@ifnextchar[
  {\beamer@@sbtopar{#1}[{#2}]{#3}[{#4}]}
  {\def\beamer@sbtotemp{}\beamer@@@sbtopar{#1}[{#2}]{#3}[{#4}]}}
\long\def\beamer@@sbtopar#1[#2]#3[#4][#5]{\long\def\beamer@sbtotemp{[{#5}]}\beamer@@@sbtopar{#1}[{#2}]{#3}[{#4}]}
\long\def\beamer@@@sbtopar#1[#2]#3[#4]#5{%
  \expandafter\def\csname beamer@@tmpgrp@#1\endcsname{#3}%
  \edef\beamer@@sbtoarg{\noexpand\newcommand\expandafter\noexpand\csname beamer@@tmpop@#1@#2\endcsname[{#4}]}%
  \expandafter\beamer@@sbtoarg\beamer@sbtotemp{%
    \def\beamer@sbtlist{#3}%
    \@for\beamer@templ:=\beamer@sbtlist\do
    {\expandafter\expandafter\expandafter\setbeamertemplate
      \expandafter\expandafter\expandafter{\expandafter\beamer@templ\expandafter}\expandafter[\beamer@@sbt@option]#5}}}


\def\setbeamertemplate#1{%
  \@ifnextchar[{\beamer@sbtchoose{#1}}{\beamer@sbtexec{#1}}}
\long\def\beamer@sbtexec#1#2{%
  \expandafter\long\expandafter\def\csname beamer@@tmpl@#1\endcsname{#2}%
  \expandafter\ifx\csname beamer@@tmpgrp@#1\endcsname\relax%
  \else%
    \expandafter\expandafter\expandafter\def
    \expandafter\expandafter\expandafter\beamer@sbt@group
    \expandafter\expandafter\expandafter{\csname beamer@@tmpgrp@#1\endcsname}%
    \@for\beamer@templ:=\beamer@sbt@group\do{\expandafter\setbeamertemplate\expandafter{\beamer@templ}{#2}}%
  \fi%
}
\long\def\beamer@sbtchoose#1[#2]{\def\beamer@@sbt@option{#2}%
  \expandafter\ifx\csname beamer@@tmpop@#1@#2\endcsname\relax%
    \expandafter\let\expandafter\beamer@@next\csname beamer@@tmpop@#1@*\endcsname%
  \else%
    \expandafter\let\expandafter\beamer@@next\csname beamer@@tmpop@#1@#2\endcsname%
  \fi%
  \beamer@@next%
}

\newcommand\addtobeamertemplate[3]{%
  \long\def\beamer@temp{#2}%
  \expandafter\def\expandafter\beamer@@temp\expandafter{\expandafter\long\expandafter\def\csname beamer@@tmpl@#1\endcsname}%
  \expandafter\expandafter\expandafter\long%
  \expandafter\expandafter\expandafter\def%
  \expandafter\expandafter\expandafter\beamer@@addtemplate%
  \expandafter\expandafter\expandafter{\csname beamer@@tmpl@#1\endcsname}%
  \expandafter\expandafter\expandafter\beamer@@temp%
  \expandafter\expandafter\expandafter{\expandafter\beamer@temp\beamer@@addtemplate#3}%
}



\RequirePackage{beamerbaseauxtemplates}


\mode
<all>
