resources/src/mediawiki.toc/toc.js

   1 ( function () {
   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                                 $tocToggleCheckbox = $this.children( '.toctogglecheckbox' ),
  10                                 $tocTitle = $this.find( '.toctitle' ),
  11                                 $tocToggleLink = $this.find( '.togglelink' ),
  12                                 $tocList = $this.find( 'ul' ).eq( 0 );
  13
  14                         // Hide/show the table of contents element
  15                         function toggleToc() {
  16                                 if ( $tocList.is( ':hidden' ) ) {
  17                                         // FIXME: Use CSS transitions
  18                                         // eslint-disable-next-line jquery/no-slide
  19                                         $tocList.slideDown( 'fast' );
  20                                         $tocToggleLink.text( mw.msg( 'hidetoc' ) );
  21                                         $this.removeClass( 'tochidden' );
  22                                         mw.cookie.set( 'hidetoc', null );
  23                                 } else {
  24                                         // eslint-disable-next-line jquery/no-slide
  25                                         $tocList.slideUp( 'fast' );
  26                                         $tocToggleLink.text( mw.msg( 'showtoc' ) );
  27                                         $this.addClass( 'tochidden' );
  28                                         mw.cookie.set( 'hidetoc', '1' );
  29                                 }
  30                         }
  31
  32                         // Only add it if there is a complete TOC and it doesn't
  33                         // have a toggle added already
  34                         if ( !$tocToggleCheckbox.length && $tocTitle.length && $tocList.length && !$tocToggleLink.length ) {
  35                                 hideToc = mw.cookie.get( 'hidetoc' ) === '1';
  36
  37                                 $tocToggleLink = $( '<a>' )
  38                                         .attr( {
  39                                                 role: 'button',
  40                                                 tabindex: 0
  41                                         } )
  42                                         .addClass( 'togglelink' )
  43                                         .text( mw.msg( hideToc ? 'showtoc' : 'hidetoc' ) )
  44                                         .on( 'click keypress', function ( e ) {
  45                                                 if (
  46                                                         e.type === 'click' ||
  47                                                         e.type === 'keypress' && e.which === 13
  48                                                 ) {
  49                                                         toggleToc();
  50                                                 }
  51                                         } );
  52
  53                                 $tocTitle.append(
  54                                         $tocToggleLink
  55                                                 .wrap( '<span class="toctoggle"></span>' )
  56                                                 .parent()
  57                                                 .prepend( '&nbsp;[' )
  58                                                 .append( ']&nbsp;' )
  59                                 );
  60
  61                                 if ( hideToc ) {
  62                                         $tocList.hide();
  63                                         $this.addClass( 'tochidden' );
  64                                 }
  65                         }
  66                 } );
  67         } );
  68
  69 }() );