skins/common/wikibits.js

   1 // Wikipedia JavaScript support functions
   2 // if this is true, the toolbar will no longer overwrite the infobox when you move the mouse over individual items
   3 var noOverwrite=false;
   4 var alertText;
   5 var clientPC = navigator.userAgent.toLowerCase(); // Get client info
   6 var is_gecko = ((clientPC.indexOf('gecko')!=-1) && (clientPC.indexOf('spoofer')==-1)
   7                 && (clientPC.indexOf('khtml') == -1) && (clientPC.indexOf('netscape/7.0')==-1));
   8 var is_safari = ((clientPC.indexOf('AppleWebKit')!=-1) && (clientPC.indexOf('spoofer')==-1));
   9 var is_khtml = (navigator.vendor == 'KDE' || ( document.childNodes && !document.all && !navigator.taintEnabled ));
  10 if (clientPC.indexOf('opera')!=-1) {
  11     var is_opera = true;
  12     var is_opera_preseven = (window.opera && !document.childNodes);
  13     var is_opera_seven = (window.opera && document.childNodes);
  14 }
  15
  16 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  17 function onloadhook () {
  18     // don't run anything below this for non-dom browsers
  19     if(!(document.getElementById && document.getElementsByTagName)) return;
  20     histrowinit();
  21     unhidetzbutton();
  22     tabbedprefs();
  23     akeytt();
  24     searchfocus();
  25 }
  26 if (window.addEventListener) window.addEventListener("load",onloadhook,false);
  27 else if (window.attachEvent) window.attachEvent("onload",onloadhook);
  28
  29
  30 // document.write special stylesheet links
  31 if(typeof stylepath != 'undefined' && typeof skin != 'undefined') {
  32     if (is_opera_preseven) {
  33         document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera6Fixes.css">');
  34     } else if (is_opera_seven) {
  35         document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera7Fixes.css">');
  36     } else if (is_khtml) {
  37         document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/KHTMLFixes.css">');
  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     if(prefform.nodeName.toLowerCase() == 'a') return; // Occasional IE problem
 117     prefform.className = prefform.className + 'jsprefs';
 118     var sections = new Array();
 119     children = prefform.childNodes;
 120     var seci = 0;
 121     for(i=0;i<children.length;i++) {
 122         if(children[i].nodeName.toLowerCase().indexOf('fieldset') != -1) {
 123             children[i].id = 'prefsection-' + seci;
 124             children[i].className = 'prefsection';
 125             if(is_opera || is_khtml) children[i].className = 'prefsection operaprefsection';
 126             legends = children[i].getElementsByTagName('legend');
 127             sections[seci] = new Object();
 128             if(legends[0] && legends[0].firstChild.nodeValue)
 129                 sections[seci].text = legends[0].firstChild.nodeValue;
 130             else
 131                 sections[seci].text = '# ' + seci;
 132             sections[seci].secid = children[i].id;
 133             seci++;
 134             if(sections.length != 1) children[i].style.display = 'none';
 135             else var selectedid = children[i].id;
 136         }
 137     }
 138     var toc = document.createElement('ul');
 139     toc.id = 'preftoc';
 140     toc.selectedid = selectedid;
 141     for(i=0;i<sections.length;i++) {
 142         var li = document.createElement('li');
 143         if(i == 0) li.className = 'selected';
 144         var a =  document.createElement('a');
 145         a.href = '#' + sections[i].secid;
 146         a.onclick = uncoversection;
 147         a.appendChild(document.createTextNode(sections[i].text));
 148         a.secid = sections[i].secid;
 149         li.appendChild(a);
 150         toc.appendChild(li);
 151     }
 152     prefform.insertBefore(toc, children[0]);
 153     document.getElementById('prefsubmit').id = 'prefcontrol';
 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 function unhidetzbutton() {
 187     tzb = document.getElementById('guesstimezonebutton')
 188     if(tzb) tzb.style.display = 'inline';
 189 }
 190
 191 // in [-]HH:MM format...
 192 // won't yet work with non-even tzs
 193 function fetchTimezone() {
 194         // FIXME: work around Safari bug
 195         var localclock = new Date();
 196         // returns negative offset from GMT in minutes
 197         var tzRaw = localclock.getTimezoneOffset();
 198         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 199         var tzMin = Math.abs(tzRaw) % 60;
 200         var tzString = ((tzRaw >= 0) ? "-" : "") + ((tzHour < 10) ? "0" : "") + tzHour +
 201                 ":" + ((tzMin < 10) ? "0" : "") + tzMin;
 202         return tzString;
 203 }
 204
 205 function guessTimezone(box) {
 206         document.preferences.wpHourDiff.value = fetchTimezone();
 207 }
 208
 209 function showTocToggle() {
 210   if (document.createTextNode) {
 211     // Uses DOM calls to avoid document.write + XHTML issues
 212
 213     var linkHolder = document.getElementById('toctitle')
 214     if (!linkHolder) return;
 215
 216     var outerSpan = document.createElement('span');
 217     outerSpan.className = 'toctoggle';
 218
 219     var toggleLink = document.createElement('a');
 220     toggleLink.id = 'togglelink';
 221     toggleLink.className = 'internal';
 222     toggleLink.href = 'javascript:toggleToc()';
 223     toggleLink.appendChild(document.createTextNode(tocHideText));
 224
 225     outerSpan.appendChild(document.createTextNode('['));
 226     outerSpan.appendChild(toggleLink);
 227     outerSpan.appendChild(document.createTextNode(']'));
 228
 229     linkHolder.appendChild(document.createTextNode(' '));
 230     linkHolder.appendChild(outerSpan);
 231
 232     var cookiePos = document.cookie.indexOf("hidetoc=");
 233     if (cookiePos > -1 && document.cookie.charAt(cookiePos + 8) == 1)
 234      toggleToc();
 235   }
 236 }
 237
 238 function changeText(el, newText) {
 239   // Safari work around
 240   if (el.innerText)
 241     el.innerText = newText;
 242   else if (el.firstChild && el.firstChild.nodeValue)
 243     el.firstChild.nodeValue = newText;
 244 }
 245
 246 function toggleToc() {
 247         var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
 248   var toggleLink = document.getElementById('togglelink')
 249
 250         if(toc && toggleLink && toc.style.display == 'none') {
 251      changeText(toggleLink, tocHideText);
 252                 toc.style.display = 'block';
 253      document.cookie = "hidetoc=0";
 254         } else {
 255     changeText(toggleLink, tocShowText);
 256                 toc.style.display = 'none';
 257     document.cookie = "hidetoc=1";
 258         }
 259 }
 260
 261 // this function generates the actual toolbar buttons with localized text
 262 // we use it to avoid creating the toolbar where javascript is not enabled
 263 function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText) {
 264
 265         speedTip=escapeQuotes(speedTip);
 266         tagOpen=escapeQuotes(tagOpen);
 267         tagClose=escapeQuotes(tagClose);
 268         sampleText=escapeQuotes(sampleText);
 269         var mouseOver="";
 270
 271         // we can't change the selection, so we show example texts
 272         // when moving the mouse instead, until the first button is clicked
 273         if(!document.selection && !is_gecko) {
 274                 // filter backslashes so it can be shown in the infobox
 275                 var re=new RegExp("\\\\n","g");
 276                 tagOpen=tagOpen.replace(re,"");
 277                 tagClose=tagClose.replace(re,"");
 278                 mouseOver = "onMouseover=\"if(!noOverwrite){document.infoform.infobox.value='"+tagOpen+sampleText+tagClose+"'};\"";
 279         }
 280
 281         document.write("<a href=\"javascript:insertTags");
 282         document.write("('"+tagOpen+"','"+tagClose+"','"+sampleText+"');\">");
 283
 284         document.write("<img width=\"23\" height=\"22\" src=\""+imageFile+"\" border=\"0\" alt=\""+speedTip+"\" title=\""+speedTip+"\""+mouseOver+">");
 285         document.write("</a>");
 286         return;
 287 }
 288
 289 function addInfobox(infoText,text_alert) {
 290         alertText=text_alert;
 291         var clientPC = navigator.userAgent.toLowerCase(); // Get client info
 292
 293         var re=new RegExp("\\\\n","g");
 294         alertText=alertText.replace(re,"\n");
 295
 296         // if no support for changing selection, add a small copy & paste field
 297         // document.selection is an IE-only property. The full toolbar works in IE and
 298         // Gecko-based browsers.
 299         if(!document.selection && !is_gecko) {
 300                 infoText=escapeQuotesHTML(infoText);
 301                 document.write("<form name='infoform' id='infoform'>"+
 302                         "<input size=80 id='infobox' name='infobox' value=\""+
 303                         infoText+"\" readonly='readonly'></form>");
 304         }
 305
 306 }
 307
 308 function escapeQuotes(text) {
 309         var re=new RegExp("'","g");
 310         text=text.replace(re,"\\'");
 311         re=new RegExp('"',"g");
 312         text=text.replace(re,'&quot;');
 313         re=new RegExp("\\n","g");
 314         text=text.replace(re,"\\n");
 315         return text;
 316 }
 317
 318 function escapeQuotesHTML(text) {
 319         var re=new RegExp('"',"g");
 320         text=text.replace(re,"&quot;");
 321         return text;
 322 }
 323
 324 // apply tagOpen/tagClose to selection in textarea,
 325 // use sampleText instead of selection if there is none
 326 // copied and adapted from phpBB
 327 function insertTags(tagOpen, tagClose, sampleText) {
 328
 329         var txtarea = document.editform.wpTextbox1;
 330         // IE
 331         if(document.selection  && !is_gecko) {
 332                 var theSelection = document.selection.createRange().text;
 333                 if(!theSelection) { theSelection=sampleText;}
 334                 txtarea.focus();
 335                 if(theSelection.charAt(theSelection.length - 1) == " "){// exclude ending space char, if any
 336                         theSelection = theSelection.substring(0, theSelection.length - 1);
 337                         document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
 338                 } else {
 339                         document.selection.createRange().text = tagOpen + theSelection + tagClose;
 340                 }
 341
 342         // Mozilla
 343         } else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
 344                 var startPos = txtarea.selectionStart;
 345                 var endPos = txtarea.selectionEnd;
 346                 var scrollTop=txtarea.scrollTop;
 347                 var myText = (txtarea.value).substring(startPos, endPos);
 348                 if(!myText) { myText=sampleText;}
 349                 if(myText.charAt(myText.length - 1) == " "){ // exclude ending space char, if any
 350                         subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
 351                 } else {
 352                         subst = tagOpen + myText + tagClose;
 353                 }
 354                 txtarea.value = txtarea.value.substring(0, startPos) + subst +
 355                   txtarea.value.substring(endPos, txtarea.value.length);
 356                 txtarea.focus();
 357
 358                 var cPos=startPos+(tagOpen.length+myText.length+tagClose.length);
 359                 txtarea.selectionStart=cPos;
 360                 txtarea.selectionEnd=cPos;
 361                 txtarea.scrollTop=scrollTop;
 362
 363         // All others
 364         } else {
 365                 var copy_alertText=alertText;
 366                 var re1=new RegExp("\\$1","g");
 367                 var re2=new RegExp("\\$2","g");
 368                 copy_alertText=copy_alertText.replace(re1,sampleText);
 369                 copy_alertText=copy_alertText.replace(re2,tagOpen+sampleText+tagClose);
 370                 var text;
 371                 if (sampleText) {
 372                         text=prompt(copy_alertText);
 373                 } else {
 374                         text="";
 375                 }
 376                 if(!text) { text=sampleText;}
 377                 text=tagOpen+text+tagClose;
 378                 document.infoform.infobox.value=text;
 379                 // in Safari this causes scrolling
 380                 if(!is_safari) {
 381                         txtarea.focus();
 382                 }
 383                 noOverwrite=true;
 384         }
 385         // reposition cursor if possible
 386         if (txtarea.createTextRange) txtarea.caretPos = document.selection.createRange().duplicate();
 387 }
 388
 389 function akeytt() {
 390     if(typeof ta == "undefined" || !ta) return;
 391     pref = 'alt-';
 392     if(is_safari || navigator.userAgent.toLowerCase().indexOf( 'mac' ) + 1 ) pref = 'control-';
 393     if(is_opera) pref = 'shift-esc-';
 394     for(id in ta) {
 395         n = document.getElementById(id);
 396         if(n){
 397             a = n.childNodes[0];
 398             if(a){
 399                 if(ta[id][0].length > 0) {
 400                     a.accessKey = ta[id][0];
 401                     ak = ' ['+pref+ta[id][0]+']';
 402                 } else {
 403                     ak = '';
 404                 }
 405                 a.title = ta[id][1]+ak;
 406             } else {
 407                 if(ta[id][0].length > 0) {
 408                     n.accessKey = ta[id][0];
 409                     ak = ' ['+pref+ta[id][0]+']';
 410                 } else {
 411                     ak = '';
 412                 }
 413                 n.title = ta[id][1]+ak;
 414             }
 415         }
 416     }
 417 }
 418
 419 function setupRightClickEdit() {
 420         if( document.getElementsByTagName ) {
 421                 var divs = document.getElementsByTagName( 'div' );
 422                 for( var i = 0; i < divs.length; i++ ) {
 423                         var el = divs[i];
 424                         if( el.className == 'editsection' ) {
 425                                 addRightClickEditHandler( el );
 426                         }
 427                 }
 428         }
 429 }
 430
 431 function addRightClickEditHandler( el ) {
 432         for( var i = 0; i < el.childNodes.length; i++ ) {
 433                 var link = el.childNodes[i];
 434                 if( link.nodeType == 1 && link.nodeName.toLowerCase() == 'a' ) {
 435                         var editHref = link.getAttribute( 'href' );
 436
 437                         // find the following a
 438                         var next = el.nextSibling;
 439                         while( next.nodeType != 1 )
 440                                 next = next.nextSibling;
 441
 442                         // find the following header
 443                         next = next.nextSibling;
 444                         while( next.nodeType != 1 )
 445                                 next = next.nextSibling;
 446
 447                         if( next && next.nodeType == 1 &&
 448                                 next.nodeName.match( /^[Hh][1-6]$/ ) ) {
 449                                 next.oncontextmenu = function() {
 450                                         document.location = editHref;
 451                                         return false;
 452                                 }
 453                         }
 454                 }
 455         }
 456 }
 457
 458 function searchfocus() {
 459         // @bug 1864, autofocus on the searchform for MonoBook
 460         // The former search is <form name="searchform" and the latter is <input name="search"
 461         document.searchform.search.focus();
 462 }