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                                         $tocList.slideDown( 'fast' );
  18                                         $tocToggleLink.text( mw.msg( 'hidetoc' ) );
  19                                         $this.removeClass( 'tochidden' );
  20                                         mw.cookie.set( 'hidetoc', null );
  21                                 } else {
  22                                         $tocList.slideUp( 'fast' );
  23                                         $tocToggleLink.text( mw.msg( 'showtoc' ) );
  24                                         $this.addClass( 'tochidden' );
  25                                         mw.cookie.set( 'hidetoc', '1' );
  26                                 }
  27                         }
  28
  29                         // Only add it if there is a complete TOC and it doesn't
  30                         // have a toggle added already
  31                         if ( !$tocToggleCheckbox.length && $tocTitle.length && $tocList.length && !$tocToggleLink.length ) {
  32                                 hideToc = mw.cookie.get( 'hidetoc' ) === '1';
  33
  34                                 $tocToggleLink = $( '<a>' )
  35                                         .attr( {
  36                                                 role: 'button',
  37                                                 tabindex: 0
  38                                         } )
  39                                         .addClass( 'togglelink' )
  40                                         .text( mw.msg( hideToc ? 'showtoc' : 'hidetoc' ) )
  41                                         .on( 'click keypress', function ( e ) {
  42                                                 if (
  43                                                         e.type === 'click' ||
  44                                                         e.type === 'keypress' && e.which === 13
  45                                                 ) {
  46                                                         toggleToc();
  47                                                 }
  48                                         } );
  49
  50                                 $tocTitle.append(
  51                                         $tocToggleLink
  52                                                 .wrap( '<span class="toctoggle"></span>' )
  53                                                 .parent()
  54                                                 .prepend( '&nbsp;[' )
  55                                                 .append( ']&nbsp;' )
  56                                 );
  57
  58                                 if ( hideToc ) {
  59                                         $tocList.hide();
  60                                         $this.addClass( 'tochidden' );
  61                                 }
  62                         }
  63                 } );
  64         } );
  65
  66 }() );