skins/common/wikibits.js

   1 // Wikipedia JavaScript support functions
   2
   3 var clientPC = navigator.userAgent.toLowerCase(); // Get client info
   4 var is_gecko = ((clientPC.indexOf('gecko')!=-1) && (clientPC.indexOf('spoofer')==-1)
   5                 && (clientPC.indexOf('khtml') == -1) && (clientPC.indexOf('netscape/7.0')==-1));
   6 var is_safari = ((clientPC.indexOf('AppleWebKit')!=-1) && (clientPC.indexOf('spoofer')==-1));
   7 var is_khtml = (navigator.vendor == 'KDE' || ( document.childNodes && !document.all && !navigator.taintEnabled ));
   8 if (clientPC.indexOf('opera')!=-1) {
   9     var is_opera = true;
  10     var is_opera_preseven = (window.opera && !document.childNodes);
  11     var is_opera_seven = (window.opera && document.childNodes);
  12 }
  13
  14 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  15 function onloadhook () {
  16     // don't run anything below this for non-dom browsers
  17     if(!(document.getElementById && document.getElementsByTagName)) return;
  18     histrowinit();
  19     unhidetzbutton();
  20     tabbedprefs();
  21     akeytt();
  22 }
  23 if (window.addEventListener) window.addEventListener("load",onloadhook,false);
  24 else if (window.attachEvent) window.attachEvent("onload",onloadhook);
  25
  26
  27 // document.write special stylesheet links
  28 if(typeof stylepath != 'undefined' && typeof skin != 'undefined') {
  29     if (is_opera_preseven) {
  30         document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera6Fixes.css">');
  31     } else if (is_opera_seven) {
  32         document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera7Fixes.css">');
  33     } else if (is_khtml) {
  34         document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/KHTMLFixes.css">');
  35     }
  36 }
  37 // Un-trap us from framesets
  38 if( window.top != window ) window.top.location = window.location;
  39
  40 // for enhanced RecentChanges
  41 function toggleVisibility( _levelId, _otherId, _linkId) {
  42         var thisLevel = document.getElementById( _levelId );
  43         var otherLevel = document.getElementById( _otherId );
  44         var linkLevel = document.getElementById( _linkId );
  45         if ( thisLevel.style.display == 'none' ) {
  46                 thisLevel.style.display = 'block';
  47                 otherLevel.style.display = 'none';
  48                 linkLevel.style.display = 'inline';
  49         } else {
  50                 thisLevel.style.display = 'none';
  51                 otherLevel.style.display = 'inline';
  52                 linkLevel.style.display = 'none';
  53                 }
  54 }
  55
  56 // page history stuff
  57 // attach event handlers to the input elements on history page
  58 function histrowinit () {
  59     hf = document.getElementById('pagehistory');
  60     if(!hf) return;
  61     lis = hf.getElementsByTagName('li');
  62     for (i=0;i<lis.length;i++) {
  63         inputs=lis[i].getElementsByTagName('input');
  64         if(inputs[0] && inputs[1]) {
  65                 inputs[0].onclick = diffcheck;
  66                 inputs[1].onclick = diffcheck;
  67         }
  68     }
  69     diffcheck();
  70 }
  71 // check selection and tweak visibility/class onclick
  72 function diffcheck() {
  73     var dli = false; // the li where the diff radio is checked
  74     var oli = false; // the li where the oldid radio is checked
  75     hf = document.getElementById('pagehistory');
  76     if(!hf) return;
  77     lis = hf.getElementsByTagName('li');
  78     for (i=0;i<lis.length;i++) {
  79         inputs=lis[i].getElementsByTagName('input');
  80         if(inputs[1] && inputs[0]) {
  81             if(inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
  82                 if(inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value) return false;
  83                 if(oli) { // it's the second checked radio
  84                     if(inputs[1].checked) {
  85                     oli.className = "selected";
  86                     return false
  87                     }
  88                 } else if (inputs[0].checked) {
  89                     return false;
  90                 }
  91                 if(inputs[0].checked) dli = lis[i];
  92                 if(!oli) inputs[0].style.visibility = 'hidden';
  93                 if(dli) inputs[1].style.visibility = 'hidden';
  94                 lis[i].className = "selected";
  95                 oli = lis[i];
  96             }  else { // no radio is checked in this row
  97                 if(!oli) inputs[0].style.visibility = 'hidden';
  98                 else inputs[0].style.visibility = 'visible';
  99                 if(dli) inputs[1].style.visibility = 'hidden';
 100                 else inputs[1].style.visibility = 'visible';
 101                 lis[i].className = "";
 102             }
 103         }
 104     }
 105 }
 106
 107 // generate toc from prefs form, fold sections
 108 // XXX: needs testing on IE/Mac and safari
 109 // more comments to follow
 110 function tabbedprefs() {
 111     var prefform = document.getElementById('preferences');
 112     if(!prefform || !document.createElement) return;
 113     if(prefform.nodeName.toLowerCase() == 'a') return; // Occasional IE problem
 114     prefform.className = prefform.className + 'jsprefs';
 115     var sections = new Array();
 116     children = prefform.childNodes;
 117     var seci = 0;
 118     for(i=0;i<children.length;i++) {
 119         if(children[i].nodeName.toLowerCase() == 'fieldset') {
 120             children[i].id = 'prefsection-' + seci;
 121             children[i].className = 'prefsection';
 122             if(is_opera || is_khtml) children[i].className = 'prefsection operaprefsection';
 123             legends = children[i].getElementsByTagName('legend');
 124             sections[seci] = new Object();
 125             legends[0].className = 'mainLegend';
 126             if(legends[0] && legends[0].firstChild.nodeValue)
 127                 sections[seci].text = legends[0].firstChild.nodeValue;
 128             else
 129                 sections[seci].text = '# ' + seci;
 130             sections[seci].secid = children[i].id;
 131             seci++;
 132             if(sections.length != 1) children[i].style.display = 'none';
 133             else var selectedid = children[i].id;
 134         }
 135     }
 136     var toc = document.createElement('ul');
 137     toc.id = 'preftoc';
 138     toc.selectedid = selectedid;
 139     for(i=0;i<sections.length;i++) {
 140         var li = document.createElement('li');
 141         if(i == 0) li.className = 'selected';
 142         var a =  document.createElement('a');
 143         a.href = '#' + sections[i].secid;
 144         a.onclick = uncoversection;
 145         a.appendChild(document.createTextNode(sections[i].text));
 146         a.secid = sections[i].secid;
 147         li.appendChild(a);
 148         toc.appendChild(li);
 149     }
 150     prefform.parentNode.insertBefore(toc, prefform.parentNode.childNodes[0]);
 151     document.getElementById('prefsubmit').id = 'prefcontrol';
 152 }
 153 function uncoversection() {
 154     oldsecid = this.parentNode.parentNode.selectedid;
 155     newsec = document.getElementById(this.secid);
 156     if(oldsecid != this.secid) {
 157         ul = document.getElementById('preftoc');
 158         document.getElementById(oldsecid).style.display = 'none';
 159         newsec.style.display = 'block';
 160         ul.selectedid = this.secid;
 161         lis = ul.getElementsByTagName('li');
 162         for(i=0;i< lis.length;i++) {
 163             lis[i].className = '';
 164         }
 165         this.parentNode.className = 'selected';
 166     }
 167     return false;
 168 }
 169
 170 // Timezone stuff
 171 // tz in format [+-]HHMM
 172 function checkTimezone( tz, msg ) {
 173         var localclock = new Date();
 174         // returns negative offset from GMT in minutes
 175         var tzRaw = localclock.getTimezoneOffset();
 176         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 177         var tzMin = Math.abs(tzRaw) % 60;
 178         var tzString = ((tzRaw >= 0) ? "-" : "+") + ((tzHour < 10) ? "0" : "") + tzHour + ((tzMin < 10) ? "0" : "") + tzMin;
 179         if( tz != tzString ) {
 180                 var junk = msg.split( '$1' );
 181                 document.write( junk[0] + "UTC" + tzString + junk[1] );
 182         }
 183 }
 184 function unhidetzbutton() {
 185     tzb = document.getElementById('guesstimezonebutton')
 186     if(tzb) tzb.style.display = 'inline';
 187 }
 188
 189 // in [-]HH:MM format...
 190 // won't yet work with non-even tzs
 191 function fetchTimezone() {
 192         // FIXME: work around Safari bug
 193         var localclock = new Date();
 194         // returns negative offset from GMT in minutes
 195         var tzRaw = localclock.getTimezoneOffset();
 196         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 197         var tzMin = Math.abs(tzRaw) % 60;
 198         var tzString = ((tzRaw >= 0) ? "-" : "") + ((tzHour < 10) ? "0" : "") + tzHour +
 199                 ":" + ((tzMin < 10) ? "0" : "") + tzMin;
 200         return tzString;
 201 }
 202
 203 function guessTimezone(box) {
 204         document.getElementsByName("wpHourDiff")[0].value = fetchTimezone();
 205 }
 206
 207 function showTocToggle() {
 208   if (document.createTextNode) {
 209     // Uses DOM calls to avoid document.write + XHTML issues
 210
 211     var linkHolder = document.getElementById('toctitle')
 212     if (!linkHolder) return;
 213
 214     var outerSpan = document.createElement('span');
 215     outerSpan.className = 'toctoggle';
 216
 217     var toggleLink = document.createElement('a');
 218     toggleLink.id = 'togglelink';
 219     toggleLink.className = 'internal';
 220     toggleLink.href = 'javascript:toggleToc()';
 221     toggleLink.appendChild(document.createTextNode(tocHideText));
 222
 223     outerSpan.appendChild(document.createTextNode('['));
 224     outerSpan.appendChild(toggleLink);
 225     outerSpan.appendChild(document.createTextNode(']'));
 226
 227     linkHolder.appendChild(document.createTextNode(' '));
 228     linkHolder.appendChild(outerSpan);
 229
 230     var cookiePos = document.cookie.indexOf("hidetoc=");
 231     if (cookiePos > -1 && document.cookie.charAt(cookiePos + 8) == 1)
 232      toggleToc();
 233   }
 234 }
 235
 236 function changeText(el, newText) {
 237   // Safari work around
 238   if (el.innerText)
 239     el.innerText = newText;
 240   else if (el.firstChild && el.firstChild.nodeValue)
 241     el.firstChild.nodeValue = newText;
 242 }
 243
 244 function toggleToc() {
 245         var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
 246   var toggleLink = document.getElementById('togglelink')
 247
 248         if(toc && toggleLink && toc.style.display == 'none') {
 249      changeText(toggleLink, tocHideText);
 250                 toc.style.display = 'block';
 251      document.cookie = "hidetoc=0";
 252         } else {
 253     changeText(toggleLink, tocShowText);
 254                 toc.style.display = 'none';
 255     document.cookie = "hidetoc=1";
 256         }
 257 }
 258
 259 // this function generates the actual toolbar buttons with localized text
 260 // we use it to avoid creating the toolbar where javascript is not enabled
 261 function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText) {
 262
 263         // Don't generate buttons for browsers which don't fully
 264         // support it.
 265         if(!document.selection && !is_gecko) {
 266                 return false;
 267         }
 268         imageFile=escapeQuotesHTML(imageFile);
 269         speedTip=escapeQuotesHTML(speedTip);
 270         tagOpen=escapeQuotes(tagOpen);
 271         tagClose=escapeQuotes(tagClose);
 272         sampleText=escapeQuotes(sampleText);
 273         var mouseOver="";
 274
 275         document.write("<a href=\"javascript:insertTags");
 276         document.write("('"+tagOpen+"','"+tagClose+"','"+sampleText+"');\">");
 277         document.write("<img width=\"23\" height=\"22\" src=\""+imageFile+"\" border=\"0\" alt=\""+speedTip+"\" title=\""+speedTip+"\""+mouseOver+">");
 278         document.write("</a>");
 279         return;
 280 }
 281
 282 function escapeQuotes(text) {
 283         var re=new RegExp("'","g");
 284         text=text.replace(re,"\\'");
 285         re=new RegExp("\\n","g");
 286         text=text.replace(re,"\\n");
 287         return escapeQuotesHTML(text);
 288 }
 289
 290 function escapeQuotesHTML(text) {
 291         var re=new RegExp('&',"g");
 292         text=text.replace(re,"&amp;");
 293         var re=new RegExp('"',"g");
 294         text=text.replace(re,"&quot;");
 295         var re=new RegExp('<',"g");
 296         text=text.replace(re,"&lt;");
 297         var re=new RegExp('>',"g");
 298         text=text.replace(re,"&gt;");
 299         return text;
 300 }
 301
 302 // apply tagOpen/tagClose to selection in textarea,
 303 // use sampleText instead of selection if there is none
 304 // copied and adapted from phpBB
 305 function insertTags(tagOpen, tagClose, sampleText) {
 306
 307         var txtarea = document.editform.wpTextbox1;
 308         // IE
 309         if(document.selection  && !is_gecko) {
 310                 var theSelection = document.selection.createRange().text;
 311                 if(!theSelection) { theSelection=sampleText;}
 312                 txtarea.focus();
 313                 if(theSelection.charAt(theSelection.length - 1) == " "){// exclude ending space char, if any
 314                         theSelection = theSelection.substring(0, theSelection.length - 1);
 315                         document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
 316                 } else {
 317                         document.selection.createRange().text = tagOpen + theSelection + tagClose;
 318                 }
 319
 320         // Mozilla
 321         } else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
 322                 var replaced = false;
 323                 var startPos = txtarea.selectionStart;
 324                 var endPos = txtarea.selectionEnd;
 325                 if(endPos-startPos) replaced=true;
 326                 var scrollTop=txtarea.scrollTop;
 327                 var myText = (txtarea.value).substring(startPos, endPos);
 328                 if(!myText) { myText=sampleText;}
 329                 if(myText.charAt(myText.length - 1) == " "){ // exclude ending space char, if any
 330                         subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
 331                 } else {
 332                         subst = tagOpen + myText + tagClose;
 333                 }
 334                 txtarea.value = txtarea.value.substring(0, startPos) + subst +
 335                   txtarea.value.substring(endPos, txtarea.value.length);
 336                 txtarea.focus();
 337                 //set new selection
 338                 if(replaced){
 339                         var cPos=startPos+(tagOpen.length+myText.length+tagClose.length);
 340                         txtarea.selectionStart=cPos;
 341                         txtarea.selectionEnd=cPos;
 342                 }else{
 343                         txtarea.selectionStart=startPos+tagOpen.length;
 344                         txtarea.selectionEnd=startPos+tagOpen.length+myText.length;
 345                 }
 346                 txtarea.scrollTop=scrollTop;
 347
 348         // All other browsers get no toolbar.
 349         // There was previously support for a crippled "help"
 350         // bar, but that caused more problems than it solved.
 351         }
 352         // reposition cursor if possible
 353         if (txtarea.createTextRange) txtarea.caretPos = document.selection.createRange().duplicate();
 354 }
 355
 356 function akeytt() {
 357     if(typeof ta == "undefined" || !ta) return;
 358     pref = 'alt-';
 359         if(is_safari || navigator.userAgent.toLowerCase().indexOf( 'mac' ) + 1
 360            || navigator.userAgent.toLowerCase().indexOf( 'konqueror' ) + 1 ) pref = 'control-';
 361     if(is_opera) pref = 'shift-esc-';
 362
 363     for(id in ta) {
 364         n = document.getElementById(id);
 365         if(n){
 366                         // Are we putting accesskey in it
 367                         if(ta[id][0].length > 0) {
 368                                 // Is this object a object? If not assume it's the next child.
 369
 370                                 if ( n.nodeName.toLowerCase() == "a" ) {
 371                                         a = n;
 372                                 } else {
 373             a = n.childNodes[0];
 374                                 }
 375
 376             if(a){
 377                     a.accessKey = ta[id][0];
 378                     ak = ' ['+pref+ta[id][0]+']';
 379                 }
 380                 } else {
 381                                 // We don't care what type the object is when assigning tooltip
 382                                 a = n;
 383                     ak = '';
 384                 }
 385
 386                         if (a) {
 387                                 a.title = ta[id][1]+ak;
 388             }
 389         }
 390     }
 391 }
 392
 393 function setupRightClickEdit() {
 394         if( document.getElementsByTagName ) {
 395                 var divs = document.getElementsByTagName( 'div' );
 396                 for( var i = 0; i < divs.length; i++ ) {
 397                         var el = divs[i];
 398                         if( el.className == 'editsection' ) {
 399                                 addRightClickEditHandler( el );
 400                         }
 401                 }
 402         }
 403 }
 404
 405 function addRightClickEditHandler( el ) {
 406         for( var i = 0; i < el.childNodes.length; i++ ) {
 407                 var link = el.childNodes[i];
 408                 if( link.nodeType == 1 && link.nodeName.toLowerCase() == 'a' ) {
 409                         var editHref = link.getAttribute( 'href' );
 410
 411                         // find the following a
 412                         var next = el.nextSibling;
 413                         while( next.nodeType != 1 )
 414                                 next = next.nextSibling;
 415
 416                         // find the following header
 417                         next = next.nextSibling;
 418                         while( next.nodeType != 1 )
 419                                 next = next.nextSibling;
 420
 421                         if( next && next.nodeType == 1 &&
 422                                 next.nodeName.match( /^[Hh][1-6]$/ ) ) {
 423                                 next.oncontextmenu = function() {
 424                                         document.location = editHref;
 425                                         return false;
 426                                 }
 427                         }
 428                 }
 429         }
 430 }
 431
 432 function fillDestFilename() {
 433         if (!document.getElementById) return;
 434         var path = document.getElementById('wpUploadFile').value;
 435         // Find trailing part
 436         var slash = path.lastIndexOf( '/' );
 437         var backslash = path.lastIndexOf( '\\' );
 438         var fname;
 439         if ( slash == -1 && backslash == -1 ) {
 440                 fname = path;
 441         } else if ( slash > backslash ) {
 442                 fname = path.substring( slash+1, 10000 );
 443         } else {
 444                 fname = path.substring( backslash+1, 10000 );
 445         }
 446
 447         // Capitalise first letter and replace spaces by underscores
 448         fname = fname.charAt(0).toUpperCase().concat(fname.substring(1,10000)).replace( / /g, '_' );
 449
 450         // Output result
 451         var destFile = document.getElementById('wpDestFile');
 452         if (destFile) destFile.value = fname;
 453 }
 454
 455
 456 function considerChangingExpiryFocus() {
 457         if (!document.getElementById) return;
 458         var drop = document.getElementById('wpBlockExpiry');
 459         if (!drop) return;
 460         var field = document.getElementById('wpBlockOther');
 461         if (!field) return;
 462         var opt = drop.value;
 463         if (opt == 'other')
 464                 field.style.display = '';
 465         else
 466                 field.style.display = 'none';
 467 }