resources/mediawiki.special/mediawiki.special.preferences.js

   1 /*
   2  * JavaScript for Special:Preferences
   3  */
   4 jQuery( document ).ready( function ( $ ) {
   5         var $preftoc, $preferences, $fieldsets, $legends,
   6                 hash,
   7                 $tzSelect, $tzTextbox, $localtimeHolder, servertime;
   8
   9         $( '#prefsubmit' ).attr( 'id', 'prefcontrol' );
  10
  11                 $preftoc = $('<ul id="preftoc"></ul>'),
  12                 $preferences = $( '#preferences' )
  13                         .addClass( 'jsprefs' )
  14                         .before( $preftoc ),
  15                 $fieldsets = $preferences.children( 'fieldset' )
  16                         .hide()
  17                         .addClass( 'prefsection' ),
  18                 $legends = $fieldsets
  19                         .children( 'legend' )
  20                         .addClass( 'mainLegend' );
  21
  22         /**
  23          * It uses document.getElementById for security reasons (html injections in
  24          * jQuery()).
  25          *
  26          * @param String name: the name of a tab without the prefix ("mw-prefsection-")
  27          * @param String mode: [optional] A hash will be set according to the current
  28          * open section. Set mode 'noHash' to surpress this.
  29          */
  30         function switchPrefTab( name, mode ) {
  31                 var $tab, scrollTop;
  32                 // Handle hash manually to prevent jumping,
  33                 // therefore save and restore scrollTop to prevent jumping.
  34                 scrollTop = $( window ).scrollTop();
  35                 if ( mode !== 'noHash' ) {
  36                         window.location.hash = '#mw-prefsection-' + name;
  37                 }
  38                 $( window ).scrollTop( scrollTop );
  39
  40                 $preftoc.find( 'li' ).removeClass( 'selected' );
  41                 $tab = $( document.getElementById( 'preftab-' + name ) );
  42                 if ( $tab.length ) {
  43                         $tab.parent().addClass( 'selected' );
  44                         $preferences.children( 'fieldset' ).hide();
  45                         $( document.getElementById( 'mw-prefsection-' + name ) ).show();
  46                 }
  47         }
  48
  49         // Populate the prefToc
  50         $legends.each( function ( i, legend ) {
  51                 var $legend = $(legend),
  52                         ident, $li, $a;
  53                 if ( i === 0 ) {
  54                         $legend.parent().show();
  55                 }
  56                 ident = $legend.parent().attr( 'id' );
  57
  58                 $li = $( '<li>' )
  59                         .addClass( i === 0 ? 'selected' : '' );
  60                 $a = $( '<a>' )
  61                         .attr( {
  62                                 id: ident.replace( 'mw-prefsection', 'preftab' ),
  63                                 href: '#' + ident
  64                         } )
  65                         .text( $legend.text() );
  66                 $li.append( $a );
  67                 $preftoc.append( $li );
  68         } );
  69
  70         // If we've reloaded the page or followed an open-in-new-window,
  71         // make the selected tab visible.
  72         hash = window.location.hash;
  73         if ( hash.match( /^#mw-prefsection-[\w\-]+/ ) ) {
  74                 switchPrefTab( hash.replace( '#mw-prefsection-' , '' ) );
  75         }
  76
  77         // In browsers that support the onhashchange event we will not bind click
  78         // handlers and instead let the browser do the default behavior (clicking the
  79         // <a href="#.."> will naturally set the hash, handled by onhashchange.
  80         // But other things that change the hash will also be catched (e.g. using
  81         // the Back and Forward browser navigation).
  82         // Note the special check for IE "compatibility" mode.
  83         if ( 'onhashchange' in window &&
  84                 ( document.documentMode === undefined || document.documentMode >= 8 )
  85         ) {
  86                 $(window).on( 'hashchange' , function () {
  87                         var hash = window.location.hash;
  88                         if ( hash.match( /^#mw-prefsection-[\w\-]+/ ) ) {
  89                                 switchPrefTab( hash.replace( '#mw-prefsection-', '' ) );
  90                         } else if ( hash === '' ) {
  91                                 switchPrefTab( 'personal', 'noHash' );
  92                         }
  93                 });
  94         // In older browsers we'll bind a click handler as fallback.
  95         // We must not have onhashchange *and* the click handlers, other wise
  96         // the click handler calls switchPrefTab() which sets the hash value,
  97         // which triggers onhashcange and calls switchPrefTab() again.
  98         } else {
  99                 $preftoc.on( 'click', 'li a', function ( e ) {
 100                         switchPrefTab( $( this ).attr( 'href' ).replace( '#mw-prefsection-', '' ) );
 101                         e.preventDefault();
 102                 });
 103         }
 104
 105         /**
 106         * Timezone functions.
 107         * Guesses Timezone from browser and updates fields onchange
 108         */
 109
 110         $tzSelect = $( '#mw-input-wptimecorrection' );
 111         $tzTextbox = $( '#mw-input-wptimecorrection-other' );
 112         $localtimeHolder = $( '#wpLocalTime' );
 113         servertime = parseInt( $( 'input[name="wpServerTime"]' ).val(), 10 );
 114
 115         function minutesToHours( min ) {
 116                 var tzHour = Math.floor( Math.abs( min ) / 60 ),
 117                         tzMin = Math.abs( min ) % 60,
 118                         tzString = ( ( min >= 0 ) ? '' : '-' ) + ( ( tzHour < 10 ) ? '0' : '' ) + tzHour +
 119                                 ':' + ( ( tzMin < 10 ) ? '0' : '' ) + tzMin;
 120                 return tzString;
 121         }
 122
 123         function hoursToMinutes( hour ) {
 124                 var minutes,
 125                         arr = hour.split( ':' );
 126
 127                 arr[0] = parseInt( arr[0], 10 );
 128
 129                 if ( arr.length === 1 ) {
 130                         // Specification is of the form [-]XX
 131                         minutes = arr[0] * 60;
 132                 } else {
 133                         // Specification is of the form [-]XX:XX
 134                         minutes = Math.abs( arr[0] ) * 60 + parseInt( arr[1], 10 );
 135                         if ( arr[0] < 0 ) {
 136                                 minutes *= -1;
 137                         }
 138                 }
 139                 // Gracefully handle non-numbers.
 140                 if ( isNaN( minutes ) ) {
 141                         return 0;
 142                 } else {
 143                         return minutes;
 144                 }
 145         }
 146
 147         function updateTimezoneSelection () {
 148                 var minuteDiff, localTime,
 149                         type = $tzSelect.val();
 150
 151                 if ( type === 'guess' ) {
 152                         // Get browser timezone & fill it in
 153                         minuteDiff = -( new Date().getTimezoneOffset() );
 154                         $tzTextbox.val( minutesToHours( minuteDiff ) );
 155                         $tzSelect.val( 'other' );
 156                         $tzTextbox.prop( 'disabled', false );
 157                 } else if ( type === 'other' ) {
 158                         // Grab data from the textbox, parse it.
 159                         minuteDiff = hoursToMinutes( $tzTextbox.val() );
 160                 } else {
 161                         // Grab data from the $tzSelect value
 162                         minuteDiff = parseInt( type.split( '|' )[1], 10 ) || 0;
 163                         $tzTextbox.val( minutesToHours( minuteDiff ) );
 164                 }
 165
 166                 // Determine local time from server time and minutes difference, for display.
 167                 localTime = servertime + minuteDiff;
 168
 169                 // Bring time within the [0,1440) range.
 170                 while ( localTime < 0 ) {
 171                         localTime += 1440;
 172                 }
 173                 while ( localTime >= 1440 ) {
 174                         localTime -= 1440;
 175                 }
 176                 $localtimeHolder.text( minutesToHours( localTime ) );
 177         }
 178
 179         if ( $tzSelect.length && $tzTextbox.length ) {
 180                 $tzSelect.change( updateTimezoneSelection );
 181                 $tzTextbox.blur( updateTimezoneSelection );
 182                 updateTimezoneSelection();
 183         }
 184 } );