resources/src/mediawiki/mediawiki.toc.js

   1 ( function ( mw, $ ) {
   2         'use strict';
   3
   4         // Table of contents toggle
   5         mw.hook( 'wikipage.content' ).add( function ( $content ) {
   6                 var $toc, $tocTitle, $tocToggleLink, $tocList, hideToc;
   7                 $toc = $content.find( '#toc' );
   8                 $tocTitle = $content.find( '#toctitle' );
   9                 $tocToggleLink = $content.find( '#togglelink' );
  10                 $tocList = $toc.find( 'ul' ).eq( 0 );
  11
  12                 // Hide/show the table of contents element
  13                 function toggleToc() {
  14                         if ( $tocList.is( ':hidden' ) ) {
  15                                 $tocList.slideDown( 'fast' );
  16                                 $tocToggleLink.text( mw.msg( 'hidetoc' ) );
  17                                 $toc.removeClass( 'tochidden' );
  18                                 mw.cookie.set( 'hidetoc', null );
  19                         } else {
  20                                 $tocList.slideUp( 'fast' );
  21                                 $tocToggleLink.text( mw.msg( 'showtoc' ) );
  22                                 $toc.addClass( 'tochidden' );
  23                                 mw.cookie.set( 'hidetoc', '1' );
  24                         }
  25                 }
  26
  27                 // Only add it if there is a complete TOC and it doesn't
  28                 // have a toggle added already
  29                 if ( $toc.length && $tocTitle.length && $tocList.length && !$tocToggleLink.length ) {
  30                         hideToc = mw.cookie.get( 'hidetoc' ) === '1';
  31
  32                         $tocToggleLink = $( '<a role="button" tabindex="0" id="togglelink"></a>' )
  33                                 .text( mw.msg( hideToc ? 'showtoc' : 'hidetoc' ) )
  34                                 .on( 'click keypress', function ( e ) {
  35                                         if (
  36                                                 e.type === 'click' ||
  37                                                 e.type === 'keypress' && e.which === 13
  38                                         ) {
  39                                                 toggleToc();
  40                                         }
  41                                 } );
  42
  43                         $tocTitle.append(
  44                                 $tocToggleLink
  45                                         .wrap( '<span class="toctoggle"></span>' )
  46                                         .parent()
  47                                                 .prepend( '&nbsp;[' )
  48                                                 .append( ']&nbsp;' )
  49                         );
  50
  51                         if ( hideToc ) {
  52                                 $tocList.hide();
  53                                 $toc.addClass( 'tochidden' );
  54                         }
  55                 }
  56         } );
  57
  58 }( mediaWiki, jQuery ) );