skins/common/prefs.js

   1
   2 // generate toc from prefs form, fold sections
   3 // XXX: needs testing on IE/Mac and safari
   4 // more comments to follow
   5 function tabbedprefs() {
   6         var prefform = document.getElementById('preferences');
   7         if (!prefform || !document.createElement) {
   8                 return;
   9         }
  10         if (prefform.nodeName.toLowerCase() == 'a') {
  11                 return; // Occasional IE problem
  12         }
  13         prefform.className = prefform.className + 'jsprefs';
  14         var sections = [];
  15         var children = prefform.childNodes;
  16         var seci = 0;
  17         for (var i = 0; i < children.length; i++) {
  18                 if (children[i].nodeName.toLowerCase() == 'fieldset') {
  19                         children[i].id = 'prefsection-' + seci;
  20                         children[i].className = 'prefsection';
  21                         if (is_opera || is_khtml) {
  22                                 children[i].className = 'prefsection operaprefsection';
  23                         }
  24                         var legends = children[i].getElementsByTagName('legend');
  25                         sections[seci] = {};
  26                         if (legends[0]) legends[0].className = 'mainLegend';
  27                         if (legends[0] && legends[0].firstChild.nodeValue) {
  28                                 sections[seci].text = legends[0].firstChild.nodeValue;
  29                         } else {
  30                                 sections[seci].text = '# ' + seci;
  31                         }
  32                         sections[seci].secid = children[i].id;
  33                         seci++;
  34                         if (sections.length != 1) {
  35                                 children[i].style.display = 'none';
  36                         } else {
  37                                 var selectedid = children[i].id;
  38                         }
  39                 }
  40         }
  41         var toc = document.createElement('ul');
  42         toc.id = 'preftoc';
  43         toc.selectedid = selectedid;
  44         for (i = 0; i < sections.length; i++) {
  45                 var li = document.createElement('li');
  46                 if (i === 0) {
  47                         li.className = 'selected';
  48                 }
  49                 var a = document.createElement('a');
  50                 a.href = '#' + sections[i].secid;
  51                 a.onmousedown = a.onclick = uncoversection;
  52                 a.appendChild(document.createTextNode(sections[i].text));
  53                 a.secid = sections[i].secid;
  54                 li.appendChild(a);
  55                 toc.appendChild(li);
  56         }
  57         prefform.parentNode.insertBefore(toc, prefform.parentNode.childNodes[0]);
  58         document.getElementById('prefsubmit').id = 'prefcontrol';
  59 }
  60
  61 function uncoversection() {
  62         var oldsecid = this.parentNode.parentNode.selectedid;
  63         var newsec = document.getElementById(this.secid);
  64         if (oldsecid != this.secid) {
  65                 var ul = document.getElementById('preftoc');
  66                 document.getElementById(oldsecid).style.display = 'none';
  67                 newsec.style.display = 'block';
  68                 ul.selectedid = this.secid;
  69                 var lis = ul.getElementsByTagName('li');
  70                 for (var i = 0; i< lis.length; i++) {
  71                         lis[i].className = '';
  72                 }
  73                 this.parentNode.className = 'selected';
  74         }
  75         return false;
  76 }
  77
  78 // Timezone stuff
  79 // tz in format [+-]HHMM
  80 function checkTimezone(tz, msg) {
  81         var localclock = new Date();
  82         // returns negative offset from GMT in minutes
  83         var tzRaw = localclock.getTimezoneOffset();
  84         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
  85         var tzMin = Math.abs(tzRaw) % 60;
  86         var tzString = ((tzRaw >= 0) ? "-" : "+") + ((tzHour < 10) ? "0" : "") + tzHour + ((tzMin < 10) ? "0" : "") + tzMin;
  87         if (tz != tzString) {
  88                 var junk = msg.split('$1');
  89                 document.write(junk[0] + "UTC" + tzString + junk[1]);
  90         }
  91 }
  92
  93 function timezoneSetup() {
  94         var tzSelect = document.getElementById( 'mw-input-timecorrection' );
  95         var tzTextbox = document.getElementById( 'mw-input-timecorrection-other' );
  96
  97         if (tzSelect && tzTextbox) {
  98                 addHandler( tzSelect, 'change', function(e) { updateTimezoneSelection(false); } );
  99                 addHandler( tzTextbox, 'blur', function(e) { updateTimezoneSelection(true); } );
 100         }
 101
 102         updateTimezoneSelection(false);
 103 }
 104
 105 // in [-]HH:MM format...
 106 // won't yet work with non-even tzs
 107 function fetchTimezone() {
 108         // FIXME: work around Safari bug
 109         var localclock = new Date();
 110         // returns negative offset from GMT in minutes
 111         var tzRaw = localclock.getTimezoneOffset();
 112         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 113         var tzMin = Math.abs(tzRaw) % 60;
 114         var tzString = ((tzRaw >= 0) ? "-" : "") + ((tzHour < 10) ? "0" : "") + tzHour +
 115                 ":" + ((tzMin < 10) ? "0" : "") + tzMin;
 116         return tzString;
 117 }
 118
 119 function guessTimezone() {
 120         var textbox = document.getElementById("mw-input-timecorrection-other");
 121         var selector = document.getElementById( 'mw-input-timecorrection' );
 122
 123         selector.value = 'other';
 124         textbox.value = fetchTimezone();
 125         textbox.disabled = false; // The changed handler doesn't trip, obviously.
 126         updateTimezoneSelection(true);
 127 }
 128
 129 function updateTimezoneSelection(force_offset) {
 130         var selector = document.getElementById("mw-input-timecorrection");
 131
 132         if (selector.value == 'guess') {
 133                 return guessTimezone();
 134         }
 135
 136         var textbox = document.getElementById( 'mw-input-timecorrection-other' );
 137         var localtimeHolder = document.getElementById("wpLocalTime");
 138         var servertime = document.getElementsByName("wpServerTime")[0].value;
 139         var minDiff = 0;
 140
 141         // Compatibility code.
 142         if (!selector.value) selector.value = selector.options[selector.selectedIndex].value;
 143
 144         // Handle force_offset
 145         if (force_offset) selector.value = 'other';
 146
 147         // Get min_diff
 148         if (selector.value == 'other') {
 149                 // Grab data from the textbox, parse it.
 150                 var diffArr = textbox.value.split(':');
 151                 if (diffArr.length == 1) {
 152                         // Specification is of the form [-]XX
 153                         minDiff = parseInt(diffArr[0], 10) * 60;
 154                 } else {
 155                         // Specification is of the form [-]XX:XX
 156                         minDiff = Math.abs(parseInt(diffArr[0], 10))*60 + parseInt(diffArr[1], 10);
 157                         if (parseInt(diffArr[0], 10) < 0) minDiff = -minDiff;
 158                 }
 159         } else {
 160                 // Grab data from the selector value
 161                 var diffArr = selector.value.split('|');
 162                 minDiff = parseInt(diffArr[1], 10);
 163         }
 164
 165         // Gracefully handle non-numbers.
 166         if (isNaN(minDiff)) minDiff = 0;
 167
 168         // Determine local time from server time and minutes difference, for display.
 169         var localTime = parseInt(servertime, 10) + minDiff;
 170
 171         // Bring time within the [0,1440) range.
 172         while (localTime < 0) localTime += 1440;
 173         while (localTime >= 1440) localTime -= 1440;
 174
 175         // Split to hour and minute
 176         var hour = String(Math.floor(localTime/60));
 177         if (hour.length<2) hour = '0'+hour;
 178         var min = String(localTime%60);
 179         if (min.length<2) min = '0'+min;
 180         changeText(localtimeHolder, hour+':'+min);
 181
 182         // If the user selected from the drop-down, fill the offset field.
 183         if (selector.value != 'other') {
 184                 hour = String(Math.abs(Math.floor(minDiff/60)));
 185                 if (hour.length<2) hour = '0'+hour;
 186                 if (minDiff < 0) hour = '-'+hour;
 187                 min = String(minDiff%60);
 188                 if (min.length<2) min = '0'+min;
 189                 textbox.value = hour+':'+min;
 190         }
 191 }
 192
 193 addOnloadHook(timezoneSetup);
 194 addOnloadHook(tabbedprefs);