hyperref toc clickable

elegantbook-cn.tex

@@ -5,8 +5,8 @@
 
 \author{Ethan Deng \& Liam Huang}
 \institute{Elegant\LaTeX{} Program}
-\date{July 6, 2020}
-\version{4.0.2}
+\date{July 29, 2020}
+\version{4.0.3}
 \bioinfo{自定义}{信息}
 
 \extrainfo{温柔正确的人总是难以生存，因为这世界既不温柔，也不正确。—— 比企谷八幡}

elegantbook-en.tex

@@ -1,12 +1,12 @@
-\documentclass[11pt,fancy,twoside]{elegantbook}
+\documentclass[11pt,fancy,twocol]{elegantbook}
 
 \title{An Elegant \LaTeX{} Template for Books}
 \subtitle{Classic Elegant\LaTeX{} Template}
 
 \author{Ethan Deng \& Liam Huang}
 \institute{Elegant\LaTeX{} Program}
-\date{July 6, 2020}
-\version{4.0.2}
+\date{July 29, 2020}
+\version{4.0.3}
 \bioinfo{Bio}{Information}
 
 \extrainfo{Victory won\rq t come to us unless we go to it. }
@@ -15,6 +15,7 @@
 \cover{cover.jpg}
 
 
+  
 \begin{document}
 
 \maketitle
@@ -630,7 +631,7 @@ Let $G$ be a finite group, and let $H$ be a subgroup of $G$.  Then the order of
 \lipsum[3]
 
    
-\begin{proposition}{Size of Left Coset}{}
+\begin{proposition}[Size of Left Coset]
 Let $H$ be a finite subgroup of a group $G$.  Then each left coset of $H$ in $G$ has the same number of elements as $H$.
 \end{proposition}
 

elegantbook.cls

@@ -8,7 +8,7 @@
 %%%%%%%%%%%%%%%%%%%%%
 % % !Mode:: "TeX:UTF-8"
 \NeedsTeXFormat{LaTeX2e}
-\ProvidesClass{elegantbook}[2020/07/06 v4.0.2 ElegantBook document class]
+\ProvidesClass{elegantbook}[2020/07/29 v4.0.3 ElegantBook document class]
 
 \RequirePackage{kvoptions}
 \RequirePackage{etoolbox}
@@ -60,9 +60,11 @@
 \DeclareVoidOption{margintrue}{\ekv{marginpar=margintrue}}
 \DeclareVoidOption{marginfalse}{\ekv{marginpar=marginfalse}}
 
+
 \DeclareVoidOption{onecol}{\ekv{toc=onecol}}
 \DeclareVoidOption{twocol}{\ekv{toc=twocol}}
 
+
 % ----- Math option -----
 \newcommand\mailto[1]{\href{mailto:#1}{\nolinkurl{#1}}}
 
@@ -310,14 +312,7 @@
   \setlength{\footnotesep}{12pt}
 }
 
-\ifdefstring{\ELEGANT@toc}{twocol}{
-\renewcommand{\tableofcontents}{%
-\setlength{\columnsep}{2em}
-%\setlength{\columnseprule}{.8pt}
-\begin{multicols}{2}[\chapter*{\contentsname}]%
-  \@starttoc{toc}%
-\end{multicols}}
-}{\relax}
+
 
 
 %% 常用宏包
@@ -883,4 +878,22 @@
   \begin{enumerate}[label=\small\protect\circled{\arabic*}]}{
   \end{enumerate}}
 
-\addbibresource[location=local]{reference.bib}
+\addbibresource[location=local]{reference.bib}
+
+\renewcommand\tableofcontents{%
+  \hypersetup{linktoc=all, linkcolor=black}
+    \if@twocolumn
+      \@restonecoltrue\onecolumn
+    \else
+      \@restonecolfalse
+    \fi
+    \chapter*{\contentsname
+        \@mkboth{%
+           \MakeUppercase\contentsname}{\MakeUppercase\contentsname}}%
+    \ifdefstring{\ELEGANT@toc}{twocol}{
+      \setlength{\columnsep}{2em}
+      \begin{multicols}{2}%
+        \@starttoc{toc}
+      \end{multicols}}{
+      \@starttoc{toc}}
+    \if@restonecol\twocolumn\fi}