skins/vector/collapsibleNav.js

   1 /**
   2  * Collapsible navigation for Vector
   3  */
   4 ( function ( mw, $ ) {
   5         'use strict';
   6         var map;
   7
   8         // Use the same function for all navigation headings - don't repeat
   9         function toggle( $element ) {
  10                 var isCollapsed = $element.parent().is( '.collapsed' );
  11
  12                 $.cookie(
  13                         'vector-nav-' + $element.parent().attr( 'id' ),
  14                         isCollapsed,
  15                         { 'expires': 30, 'path': '/' }
  16                 );
  17
  18                 $element
  19                         .parent()
  20                         .toggleClass( 'expanded' )
  21                         .toggleClass( 'collapsed' )
  22                         .find( '.body' )
  23                         .slideToggle( 'fast' );
  24                 isCollapsed = !isCollapsed;
  25
  26                 $element
  27                         .find( '> a' )
  28                         .attr( {
  29                                 'aria-pressed': isCollapsed ? 'false' : 'true',
  30                                 'aria-expanded': isCollapsed ? 'false' : 'true'
  31                         } );
  32         }
  33
  34         /* Browser Support */
  35
  36         map = {
  37                 // Left-to-right languages
  38                 ltr: {
  39                         // Collapsible Nav is broken in Opera < 9.6 and Konqueror < 4
  40                         opera: [['>=', 9.6]],
  41                         konqueror: [['>=', 4.0]],
  42                         blackberry: false,
  43                         ipod: false,
  44                         iphone: false,
  45                         ps3: false
  46                 },
  47                 // Right-to-left languages
  48                 rtl: {
  49                         opera: [['>=', 9.6]],
  50                         konqueror: [['>=', 4.0]],
  51                         blackberry: false,
  52                         ipod: false,
  53                         iphone: false,
  54                         ps3: false
  55                 }
  56         };
  57         if ( !$.client.test( map ) ) {
  58                 return true;
  59         }
  60
  61         $( function ( $ ) {
  62                 var $headings, tabIndex;
  63
  64                 /* General Portal Modification */
  65
  66                 // Always show the first portal
  67                 $( '#mw-panel > .portal:first' ).addClass( 'first persistent' );
  68                 // Apply a class to the entire panel to activate styles
  69                 $( '#mw-panel' ).addClass( 'collapsible-nav' );
  70                 // Use cookie data to restore preferences of what to show and hide
  71                 $( '#mw-panel > .portal:not(.persistent)' )
  72                         .each( function ( i ) {
  73                                 var id = $(this).attr( 'id' ),
  74                                         state = $.cookie( 'vector-nav-' + id );
  75                                 $(this).find( 'ul:first' ).attr( 'id', id + '-list' );
  76                                 // Add anchor tag to heading for better accessibility
  77                                 $( this ).find( 'h3' ).wrapInner(
  78                                         $( '<a>' )
  79                                                 .attr( {
  80                                                         href: '#',
  81                                                         'aria-haspopup': 'true',
  82                                                         'aria-controls': id + '-list',
  83                                                         role: 'button'
  84                                                 } )
  85                                                 .click( false )
  86                                 );
  87                                 // In the case that we are not showing the new version, let's show the languages by default
  88                                 if (
  89                                         state === 'true' ||
  90                                         ( state === null && i < 1 ) ||
  91                                         ( state === null && id === 'p-lang' )
  92                                 ) {
  93                                         $(this)
  94                                                 .addClass( 'expanded' )
  95                                                 .removeClass( 'collapsed' )
  96                                                 .find( '.body' )
  97                                                 .hide() // bug 34450
  98                                                 .show();
  99                                         $(this).find( 'h3 > a' )
 100                                                 .attr( {
 101                                                         'aria-pressed': 'true',
 102                                                         'aria-expanded': 'true'
 103                                                 } );
 104                                 } else {
 105                                         $(this)
 106                                                 .addClass( 'collapsed' )
 107                                                 .removeClass( 'expanded' );
 108                                         $(this).find( 'h3 > a' )
 109                                                 .attr( {
 110                                                         'aria-pressed': 'false',
 111                                                         'aria-expanded': 'false'
 112                                                 } );
 113                                 }
 114                                 // Re-save cookie
 115                                 if ( state !== null ) {
 116                                         $.cookie( 'vector-nav-' + $(this).attr( 'id' ), state, { 'expires': 30, 'path': '/' } );
 117                                 }
 118                         } );
 119
 120                 /* Tab Indexing */
 121
 122                 $headings = $( '#mw-panel > .portal:not(.persistent) > h3' );
 123
 124                 // Get the highest tab index
 125                 tabIndex = $( document ).lastTabIndex() + 1;
 126
 127                 // Fix the search not having a tabindex
 128                 $( '#searchInput' ).attr( 'tabindex', tabIndex++ );
 129
 130                 // Make it keyboard accessible
 131                 $headings.attr( 'tabindex', function () {
 132                         return tabIndex++;
 133                 });
 134
 135                 // Toggle the selected menu's class and expand or collapse the menu
 136                 $( '#mw-panel' )
 137                         .delegate( '.portal:not(.persistent) > h3', 'keydown', function ( e ) {
 138                                 // Make the space and enter keys act as a click
 139                                 if ( e.which === 13 /* Enter */ || e.which === 32 /* Space */ ) {
 140                                         toggle( $(this) );
 141                                 }
 142                         } )
 143                         .delegate( '.portal:not(.persistent) > h3', 'mousedown', function ( e ) {
 144                                 if ( e.which !== 3 ) { // Right mouse click
 145                                         toggle( $(this) );
 146                                         $(this).blur();
 147                                 }
 148                                 return false;
 149                         } );
 150         });
 151
 152 }( mediaWiki, jQuery ) );