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                 $content.find( '.toc' ).addBack( '.toc' ).each( function () {
   7                         var hideToc,
   8                                 $this = $( this ),
   9                                 // .toctitle is new so may not exist in HTML caches for a few weeks,
  10                                 // so keep checking for #toctitle for now
  11                                 $tocTitle = $this.find( '.toctitle, #toctitle' ),
  12                                 $tocToggleLink = $this.find( '.togglelink' ),
  13                                 $tocList = $this.find( 'ul' ).eq( 0 );
  14
  15                         // Hide/show the table of contents element
  16                         function toggleToc() {
  17                                 if ( $tocList.is( ':hidden' ) ) {
  18                                         $tocList.slideDown( 'fast' );
  19                                         $tocToggleLink.text( mw.msg( 'hidetoc' ) );
  20                                         $this.removeClass( 'tochidden' );
  21                                         mw.cookie.set( 'hidetoc', null );
  22                                 } else {
  23                                         $tocList.slideUp( 'fast' );
  24                                         $tocToggleLink.text( mw.msg( 'showtoc' ) );
  25                                         $this.addClass( 'tochidden' );
  26                                         mw.cookie.set( 'hidetoc', '1' );
  27                                 }
  28                         }
  29
  30                         // Only add it if there is a complete TOC and it doesn't
  31                         // have a toggle added already
  32                         if ( $tocTitle.length && $tocList.length && !$tocToggleLink.length ) {
  33                                 hideToc = mw.cookie.get( 'hidetoc' ) === '1';
  34
  35                                 $tocToggleLink = $( '<a role="button" tabindex="0" class="togglelink"></a>' )
  36                                         .text( mw.msg( hideToc ? 'showtoc' : 'hidetoc' ) )
  37                                         .on( 'click keypress', function ( e ) {
  38                                                 if (
  39                                                         e.type === 'click' ||
  40                                                         e.type === 'keypress' && e.which === 13
  41                                                 ) {
  42                                                         toggleToc();
  43                                                 }
  44                                         } );
  45
  46                                 $tocTitle.append(
  47                                         $tocToggleLink
  48                                                 .wrap( '<span class="toctoggle"></span>' )
  49                                                 .parent()
  50                                                         .prepend( '&nbsp;[' )
  51                                                         .append( ']&nbsp;' )
  52                                 );
  53
  54                                 if ( hideToc ) {
  55                                         $tocList.hide();
  56                                         $this.addClass( 'tochidden' );
  57                                 }
  58                         }
  59                 } );
  60         } );
  61
  62 }( mediaWiki, jQuery ) );