stylesheets/wikibits.js

   1 // Wikipedia JavaScript support functions
   2
   3 // if this is true, the toolbar will no longer overwrite the infobox when you move the mouse over individual items
   4 var noOverwrite=false;
   5 var alertText;
   6 var clientPC = navigator.userAgent.toLowerCase(); // Get client info
   7 var is_gecko = ((clientPC.indexOf('gecko')!=-1) && (clientPC.indexOf('spoofer')==-1)
   8                 && (clientPC.indexOf('khtml') == -1));
   9 var is_safari = ((clientPC.indexOf('AppleWebKit')!=-1) && (clientPC.indexOf('spoofer')==-1));
  10 var is_khtml = (navigator.vendor == 'KDE' || ( document.childNodes && !document.all && !navigator.taintEnabled ));
  11 if (clientPC.indexOf('opera')!=-1) {
  12     var is_opera = true;
  13     var is_opera_preseven = (window.opera && !document.childNodes);
  14     var is_opera_seven = (window.opera && document.childNodes);
  15 }
  16
  17 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  18 function onloadhook () {
  19     // don't run anything below this for non-dom browsers
  20     if(!(document.getElementById && document.getElementsByTagName)) return;
  21     histrowinit();
  22     tabbedprefs();
  23 }
  24 if (window.addEventListener) window.addEventListener("load",onloadhook,false);
  25 else if (window.attachEvent) window.attachEvent("onload",onloadhook);
  26
  27
  28 // document.write special stylesheet links
  29 function addcss ( stylepath ) {
  30     if (is_opera_preseven) {
  31         document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'Opera6Fixes.css">');
  32     } else if (is_opera_seven) {
  33         document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'Opera7Fixes.css">');
  34     } else if (is_khtml) {
  35         document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'KHTMLFixes.css">');
  36     }
  37     return;
  38 }
  39
  40 // Un-trap us from framesets
  41 if( window.top != window ) window.top.location = window.location;
  42
  43 // for enhanced RecentChanges
  44 function toggleVisibility( _levelId, _otherId, _linkId) {
  45         var thisLevel = document.getElementById( _levelId );
  46         var otherLevel = document.getElementById( _otherId );
  47         var linkLevel = document.getElementById( _linkId );
  48         if ( thisLevel.style.display == 'none' ) {
  49                 thisLevel.style.display = 'block';
  50                 otherLevel.style.display = 'none';
  51                 linkLevel.style.display = 'inline';
  52         } else {
  53                 thisLevel.style.display = 'none';
  54                 otherLevel.style.display = 'inline';
  55                 linkLevel.style.display = 'none';
  56                 }
  57 }
  58
  59 // page history stuff
  60 // attach event handlers to the input elements on history page
  61 function histrowinit () {
  62     hf = document.getElementById('pagehistory');
  63     if(!hf) return;
  64     lis = hf.getElementsByTagName('li');
  65     for (i=0;i<lis.length;i++) {
  66         inputs=lis[i].getElementsByTagName('INPUT');
  67         if(inputs[0] && inputs[1]) {
  68                 inputs[0].onclick = diffcheck;
  69                 inputs[1].onclick = diffcheck;
  70         }
  71     }
  72     diffcheck();
  73 }
  74 // check selection and tweak visibility/class onclick
  75 function diffcheck() {
  76     var dli = false; // the li where the diff radio is checked
  77     var oli = false; // the li where the oldid radio is checked
  78     hf = document.getElementById('pagehistory');
  79     if(!hf) return;
  80     lis = hf.getElementsByTagName('li');
  81     for (i=0;i<lis.length;i++) {
  82         inputs=lis[i].getElementsByTagName('INPUT');
  83         if(inputs[1] && inputs[0]) {
  84             if(inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
  85                 if(inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value) return false;
  86                 if(oli) { // it's the second checked radio
  87                     if(inputs[1].checked) {
  88                     oli.className = "selected";
  89                     return false
  90                     }
  91                 } else if (inputs[0].checked) {
  92                     return false;
  93                 }
  94                 if(inputs[0].checked) dli = lis[i];
  95                 if(!oli) inputs[0].style.visibility = 'hidden';
  96                 if(dli) inputs[1].style.visibility = 'hidden';
  97                 lis[i].className = "selected";
  98                 oli = lis[i];
  99             }  else { // no radio is checked in this row
 100                 if(!oli) inputs[0].style.visibility = 'hidden';
 101                 else inputs[0].style.visibility = 'visible';
 102                 if(dli) inputs[1].style.visibility = 'hidden';
 103                 else inputs[1].style.visibility = 'visible';
 104                 lis[i].className = "";
 105             }
 106         }
 107     }
 108 }
 109
 110 // generate toc from prefs form, fold sections
 111 // XXX: needs testing on IE/Mac and safari
 112 // more comments to follow
 113 function tabbedprefs() {
 114     prefform = document.getElementById('preferences');
 115     if(!prefform || !document.createElement) return;
 116     prefform.className = prefform.className + 'jsprefs';
 117     var sections = new Array();
 118     children = prefform.childNodes;
 119     var seci = 0;
 120     for(i=0;i<children.length;i++) {
 121         if(children[i].nodeName.indexOf('FIELDSET') != -1) {
 122             children[i].id = 'prefsection-' + i;
 123             children[i].className = 'prefsection';
 124             if(is_opera || is_khtml) children[i].className = 'prefsection operaprefsection';
 125             legends = children[i].getElementsByTagName('LEGEND');
 126             sections[seci] = new Object();
 127             if(legends[0] && legends[0].firstChild.nodeValue)
 128                 sections[seci].text = legends[0].firstChild.nodeValue;
 129             else
 130                 sections[seci].text = '# ' + seci;
 131             sections[seci].secid = children[i].id;
 132             seci++;
 133             if(sections.length != 1) children[i].style.display = 'none';
 134             else var selectedid = children[i].id;
 135         }
 136     }
 137     var toc = document.createElement('UL');
 138     toc.id = 'preftoc';
 139     toc.selectedid = selectedid;
 140     for(i=0;i<sections.length;i++) {
 141         var li = document.createElement('LI');
 142         if(i == 0) li.className = 'selected';
 143         var a =  document.createElement('A');
 144         a.href = '#' + sections[i].secid;
 145         a.onclick = uncoversection;
 146         a.innerHTML = sections[i].text;
 147         a.secid = sections[i].secid;
 148         li.appendChild(a);
 149         toc.appendChild(li);
 150     }
 151     prefform.insertBefore(toc, children[0]);
 152     document.getElementById('prefsubmit').id = 'prefcontrol';
 153     document.getElementById('guesstimezonebutton').style.display = 'inline';
 154 }
 155 function uncoversection() {
 156     oldsecid = this.parentNode.parentNode.selectedid;
 157     newsec = document.getElementById(this.secid);
 158     if(oldsecid != this.secid) {
 159         ul = document.getElementById('preftoc');
 160         document.getElementById(oldsecid).style.display = 'none';
 161         newsec.style.display = 'block';
 162         ul.selectedid = this.secid;
 163         lis = ul.getElementsByTagName('LI');
 164         for(i=0;i< lis.length;i++) {
 165             lis[i].className = '';
 166         }
 167         this.parentNode.className = 'selected';
 168     }
 169     return false;
 170 }
 171
 172 // Timezone stuff
 173 // tz in format [+-]HHMM
 174 function checkTimezone( tz, msg ) {
 175         var localclock = new Date();
 176         // returns negative offset from GMT in minutes
 177         var tzRaw = localclock.getTimezoneOffset();
 178         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 179         var tzMin = Math.abs(tzRaw) % 60;
 180         var tzString = ((tzRaw >= 0) ? "-" : "+") + ((tzHour < 10) ? "0" : "") + tzHour + ((tzMin < 10) ? "0" : "") + tzMin;
 181         if( tz != tzString ) {
 182                 var junk = msg.split( '$1' );
 183                 document.write( junk[0] + "UTC" + tzString + junk[1] );
 184         }
 185 }
 186
 187 // in [-]HH:MM format...
 188 // won't yet work with non-even tzs
 189 function fetchTimezone() {
 190         // FIXME: work around Safari bug
 191         var localclock = new Date();
 192         // returns negative offset from GMT in minutes
 193         var tzRaw = localclock.getTimezoneOffset();
 194         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 195         var tzMin = Math.abs(tzRaw) % 60;
 196         var tzString = ((tzRaw >= 0) ? "-" : "") + ((tzHour < 10) ? "0" : "") + tzHour +
 197                 ":" + ((tzMin < 10) ? "0" : "") + tzMin;
 198         return tzString;
 199 }
 200
 201 function guessTimezone(box) {
 202         document.preferences.wpHourDiff.value = fetchTimezone();
 203 }
 204
 205 function showTocToggle(show,hide) {
 206         if(document.getElementById) {
 207                 document.writeln('<span class=\'toctoggle\'>[<a href="javascript:toggleToc()" class="internal">' +
 208                 '<span id="showlink" style="display:none;">' + show + '</span>' +
 209                 '<span id="hidelink">' + hide + '</span>'
 210                 + '</a>]</span>');
 211         }
 212 }
 213
 214
 215 function toggleToc() {
 216         var toc = document.getElementById('tocinside');
 217         var showlink=document.getElementById('showlink');
 218         var hidelink=document.getElementById('hidelink');
 219         if(toc.style.display == 'none') {
 220                 toc.style.display = tocWas;
 221                 hidelink.style.display='';
 222                 showlink.style.display='none';
 223
 224         } else {
 225                 tocWas = toc.style.display;
 226                 toc.style.display = 'none';
 227                 hidelink.style.display='none';
 228                 showlink.style.display='';
 229
 230         }
 231 }
 232
 233 // this function generates the actual toolbar buttons with localized text
 234 // we use it to avoid creating the toolbar where javascript is not enabled
 235 function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText) {
 236
 237         speedTip=escapeQuotes(speedTip);
 238         tagOpen=escapeQuotes(tagOpen);
 239         tagClose=escapeQuotes(tagClose);
 240         sampleText=escapeQuotes(sampleText);
 241         var mouseOver="";
 242
 243         // we can't change the selection, so we show example texts
 244         // when moving the mouse instead, until the first button is clicked
 245         if(!document.selection && !is_gecko) {
 246                 // filter backslashes so it can be shown in the infobox
 247                 var re=new RegExp("\\\\n","g");
 248                 tagOpen=tagOpen.replace(re,"");
 249                 tagClose=tagClose.replace(re,"");
 250                 mouseOver = "onMouseover=\"if(!noOverwrite){document.infoform.infobox.value='"+tagOpen+sampleText+tagClose+"'};\"";
 251         }
 252
 253         document.write("<a href=\"javascript:insertTags");
 254         document.write("('"+tagOpen+"','"+tagClose+"','"+sampleText+"');\">");
 255
 256         document.write("<img width=\"23\" height=\"22\" src=\""+imageFile+"\" border=\"0\" ALT=\""+speedTip+"\" TITLE=\""+speedTip+"\""+mouseOver+">");
 257         document.write("</a>");
 258         return;
 259 }
 260
 261 function addInfobox(infoText,text_alert) {
 262         alertText=text_alert;
 263         var clientPC = navigator.userAgent.toLowerCase(); // Get client info
 264
 265         var re=new RegExp("\\\\n","g");
 266         alertText=alertText.replace(re,"\n");
 267
 268         // if no support for changing selection, add a small copy & paste field
 269         // document.selection is an IE-only property. The full toolbar works in IE and
 270         // Gecko-based browsers.
 271         if(!document.selection && !is_gecko) {
 272                 infoText=escapeQuotesHTML(infoText);
 273                 document.write("<form name='infoform' id='infoform'>"+
 274                         "<input size=80 id='infobox' name='infobox' value=\""+
 275                         infoText+"\" READONLY></form>");
 276         }
 277
 278 }
 279
 280 function escapeQuotes(text) {
 281         var re=new RegExp("'","g");
 282         text=text.replace(re,"\\'");
 283         re=new RegExp('"',"g");
 284         text=text.replace(re,'&quot;');
 285         re=new RegExp("\\n","g");
 286         text=text.replace(re,"\\n");
 287         return text;
 288 }
 289
 290 function escapeQuotesHTML(text) {
 291         var re=new RegExp('"',"g");
 292         text=text.replace(re,"&quot;");
 293         return text;
 294 }
 295
 296 // apply tagOpen/tagClose to selection in textarea,
 297 // use sampleText instead of selection if there is none
 298 // copied and adapted from phpBB
 299 function insertTags(tagOpen, tagClose, sampleText) {
 300
 301         var txtarea = document.editform.wpTextbox1;
 302         // IE
 303         if(document.selection  && !is_gecko) {
 304                 var theSelection = document.selection.createRange().text;
 305                 if(!theSelection) { theSelection=sampleText;}
 306                 txtarea.focus();
 307                 if(theSelection.charAt(theSelection.length - 1) == " "){// exclude ending space char, if any
 308                         theSelection = theSelection.substring(0, theSelection.length - 1);
 309                         document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
 310                 } else {
 311                         document.selection.createRange().text = tagOpen + theSelection + tagClose;
 312                 }
 313
 314         // Mozilla
 315         } else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
 316                 var startPos = txtarea.selectionStart;
 317                 var endPos = txtarea.selectionEnd;
 318                 var scrollTop=txtarea.scrollTop;
 319                 var myText = (txtarea.value).substring(startPos, endPos);
 320                 if(!myText) { myText=sampleText;}
 321                 if(myText.charAt(myText.length - 1) == " "){ // exclude ending space char, if any
 322                         subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
 323                 } else {
 324                         subst = tagOpen + myText + tagClose;
 325                 }
 326                 txtarea.value = txtarea.value.substring(0, startPos) + subst +
 327                   txtarea.value.substring(endPos, txtarea.value.length);
 328                 txtarea.focus();
 329
 330                 var cPos=startPos+(tagOpen.length+myText.length+tagClose.length);
 331                 txtarea.selectionStart=cPos;
 332                 txtarea.selectionEnd=cPos;
 333                 txtarea.scrollTop=scrollTop;
 334
 335         // All others
 336         } else {
 337                 var copy_alertText=alertText;
 338                 var re1=new RegExp("\\$1","g");
 339                 var re2=new RegExp("\\$2","g");
 340                 copy_alertText=copy_alertText.replace(re1,sampleText);
 341                 copy_alertText=copy_alertText.replace(re2,tagOpen+sampleText+tagClose);
 342                 var text;
 343                 if (sampleText) {
 344                         text=prompt(copy_alertText);
 345                 } else {
 346                         text="";
 347                 }
 348                 if(!text) { text=sampleText;}
 349                 text=tagOpen+text+tagClose;
 350                 document.infoform.infobox.value=text;
 351                 // in Safari this causes scrolling
 352                 if(!is_safari) {
 353                         txtarea.focus();
 354                 }
 355                 noOverwrite=true;
 356         }
 357         // reposition cursor if possible
 358         if (txtarea.createTextRange) txtarea.caretPos = document.selection.createRange().duplicate();
 359 }