skins/common/wikibits.js

   1 // MediaWiki 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 // For accesskeys
   9 var is_ff2_win = (clientPC.indexOf('firefox/2')!=-1 || clientPC.indexOf('minefield/3')!=-1) && clientPC.indexOf('windows')!=-1;
  10 var is_ff2_x11 = (clientPC.indexOf('firefox/2')!=-1 || clientPC.indexOf('minefield/3')!=-1) && clientPC.indexOf('x11')!=-1;
  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 // Global external objects used by this script.
  18 /*extern ta, stylepath, skin */
  19
  20 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  21 var doneOnloadHook;
  22
  23 if (!window.onloadFuncts) {
  24         var onloadFuncts = [];
  25 }
  26
  27 function addOnloadHook(hookFunct) {
  28         // Allows add-on scripts to add onload functions
  29         onloadFuncts[onloadFuncts.length] = hookFunct;
  30 }
  31
  32 function hookEvent(hookName, hookFunct) {
  33         if (window.addEventListener) {
  34                 window.addEventListener(hookName, hookFunct, false);
  35         } else if (window.attachEvent) {
  36                 window.attachEvent("on" + hookName, hookFunct);
  37         }
  38 }
  39
  40 // document.write special stylesheet links
  41 if (typeof stylepath != 'undefined' && typeof skin != 'undefined') {
  42         if (is_opera_preseven) {
  43                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera6Fixes.css">');
  44         } else if (is_opera_seven) {
  45                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera7Fixes.css">');
  46         } else if (is_khtml) {
  47                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/KHTMLFixes.css">');
  48         }
  49 }
  50
  51 if (wgBreakFrames) {
  52         // Un-trap us from framesets
  53         if (window.top != window) {
  54                 window.top.location = window.location;
  55         }
  56 }
  57
  58 // for enhanced RecentChanges
  59 function toggleVisibility(_levelId, _otherId, _linkId) {
  60         var thisLevel = document.getElementById(_levelId);
  61         var otherLevel = document.getElementById(_otherId);
  62         var linkLevel = document.getElementById(_linkId);
  63         if (thisLevel.style.display == 'none') {
  64                 thisLevel.style.display = 'block';
  65                 otherLevel.style.display = 'none';
  66                 linkLevel.style.display = 'inline';
  67         } else {
  68                 thisLevel.style.display = 'none';
  69                 otherLevel.style.display = 'inline';
  70                 linkLevel.style.display = 'none';
  71         }
  72 }
  73
  74 function historyRadios(parent) {
  75         var inputs = parent.getElementsByTagName('input');
  76         var radios = [];
  77         for (var i = 0; i < inputs.length; i++) {
  78                 if (inputs[i].name == "diff" || inputs[i].name == "oldid") {
  79                         radios[radios.length] = inputs[i];
  80                 }
  81         }
  82         return radios;
  83 }
  84
  85 // check selection and tweak visibility/class onclick
  86 function diffcheck() {
  87         var dli = false; // the li where the diff radio is checked
  88         var oli = false; // the li where the oldid radio is checked
  89         var hf = document.getElementById('pagehistory');
  90         if (!hf) {
  91                 return true;
  92         }
  93         var lis = hf.getElementsByTagName('li');
  94         for (var i=0;i<lis.length;i++) {
  95                 var inputs = historyRadios(lis[i]);
  96                 if (inputs[1] && inputs[0]) {
  97                         if (inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
  98                                 if (inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value) {
  99                                         return false;
 100                                 }
 101                                 if (oli) { // it's the second checked radio
 102                                         if (inputs[1].checked) {
 103                                                 oli.className = "selected";
 104                                                 return false;
 105                                         }
 106                                 } else if (inputs[0].checked) {
 107                                         return false;
 108                                 }
 109                                 if (inputs[0].checked) {
 110                                         dli = lis[i];
 111                                 }
 112                                 if (!oli) {
 113                                         inputs[0].style.visibility = 'hidden';
 114                                 }
 115                                 if (dli) {
 116                                         inputs[1].style.visibility = 'hidden';
 117                                 }
 118                                 lis[i].className = "selected";
 119                                 oli = lis[i];
 120                         }  else { // no radio is checked in this row
 121                                 if (!oli) {
 122                                         inputs[0].style.visibility = 'hidden';
 123                                 } else {
 124                                         inputs[0].style.visibility = 'visible';
 125                                 }
 126                                 if (dli) {
 127                                         inputs[1].style.visibility = 'hidden';
 128                                 } else {
 129                                         inputs[1].style.visibility = 'visible';
 130                                 }
 131                                 lis[i].className = "";
 132                         }
 133                 }
 134         }
 135         return true;
 136 }
 137
 138 // page history stuff
 139 // attach event handlers to the input elements on history page
 140 function histrowinit() {
 141         var hf = document.getElementById('pagehistory');
 142         if (!hf) {
 143                 return;
 144         }
 145         var lis = hf.getElementsByTagName('li');
 146         for (var i = 0; i < lis.length; i++) {
 147                 var inputs = historyRadios(lis[i]);
 148                 if (inputs[0] && inputs[1]) {
 149                         inputs[0].onclick = diffcheck;
 150                         inputs[1].onclick = diffcheck;
 151                 }
 152         }
 153         diffcheck();
 154 }
 155
 156 // generate toc from prefs form, fold sections
 157 // XXX: needs testing on IE/Mac and safari
 158 // more comments to follow
 159 function tabbedprefs() {
 160         var prefform = document.getElementById('preferences');
 161         if (!prefform || !document.createElement) {
 162                 return;
 163         }
 164         if (prefform.nodeName.toLowerCase() == 'a') {
 165                 return; // Occasional IE problem
 166         }
 167         prefform.className = prefform.className + 'jsprefs';
 168         var sections = [];
 169         var children = prefform.childNodes;
 170         var seci = 0;
 171         for (var i = 0; i < children.length; i++) {
 172                 if (children[i].nodeName.toLowerCase() == 'fieldset') {
 173                         children[i].id = 'prefsection-' + seci;
 174                         children[i].className = 'prefsection';
 175                         if (is_opera || is_khtml) {
 176                                 children[i].className = 'prefsection operaprefsection';
 177                         }
 178                         var legends = children[i].getElementsByTagName('legend');
 179                         sections[seci] = {};
 180                         legends[0].className = 'mainLegend';
 181                         if (legends[0] && legends[0].firstChild.nodeValue) {
 182                                 sections[seci].text = legends[0].firstChild.nodeValue;
 183                         } else {
 184                                 sections[seci].text = '# ' + seci;
 185                         }
 186                         sections[seci].secid = children[i].id;
 187                         seci++;
 188                         if (sections.length != 1) {
 189                                 children[i].style.display = 'none';
 190                         } else {
 191                                 var selectedid = children[i].id;
 192                         }
 193                 }
 194         }
 195         var toc = document.createElement('ul');
 196         toc.id = 'preftoc';
 197         toc.selectedid = selectedid;
 198         for (i = 0; i < sections.length; i++) {
 199                 var li = document.createElement('li');
 200                 if (i === 0) {
 201                         li.className = 'selected';
 202                 }
 203                 var a = document.createElement('a');
 204                 a.href = '#' + sections[i].secid;
 205                 a.onmousedown = a.onclick = uncoversection;
 206                 a.appendChild(document.createTextNode(sections[i].text));
 207                 a.secid = sections[i].secid;
 208                 li.appendChild(a);
 209                 toc.appendChild(li);
 210         }
 211         prefform.parentNode.insertBefore(toc, prefform.parentNode.childNodes[0]);
 212         document.getElementById('prefsubmit').id = 'prefcontrol';
 213 }
 214
 215 function uncoversection() {
 216         var oldsecid = this.parentNode.parentNode.selectedid;
 217         var newsec = document.getElementById(this.secid);
 218         if (oldsecid != this.secid) {
 219                 var ul = document.getElementById('preftoc');
 220                 document.getElementById(oldsecid).style.display = 'none';
 221                 newsec.style.display = 'block';
 222                 ul.selectedid = this.secid;
 223                 var lis = ul.getElementsByTagName('li');
 224                 for (var i = 0; i< lis.length; i++) {
 225                         lis[i].className = '';
 226                 }
 227                 this.parentNode.className = 'selected';
 228         }
 229         return false;
 230 }
 231
 232 // Timezone stuff
 233 // tz in format [+-]HHMM
 234 function checkTimezone(tz, msg) {
 235         var localclock = new Date();
 236         // returns negative offset from GMT in minutes
 237         var tzRaw = localclock.getTimezoneOffset();
 238         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 239         var tzMin = Math.abs(tzRaw) % 60;
 240         var tzString = ((tzRaw >= 0) ? "-" : "+") + ((tzHour < 10) ? "0" : "") + tzHour + ((tzMin < 10) ? "0" : "") + tzMin;
 241         if (tz != tzString) {
 242                 var junk = msg.split('$1');
 243                 document.write(junk[0] + "UTC" + tzString + junk[1]);
 244         }
 245 }
 246
 247 function unhidetzbutton() {
 248         var tzb = document.getElementById('guesstimezonebutton');
 249         if (tzb) {
 250                 tzb.style.display = 'inline';
 251         }
 252 }
 253
 254 // in [-]HH:MM format...
 255 // won't yet work with non-even tzs
 256 function fetchTimezone() {
 257         // FIXME: work around Safari bug
 258         var localclock = new Date();
 259         // returns negative offset from GMT in minutes
 260         var tzRaw = localclock.getTimezoneOffset();
 261         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 262         var tzMin = Math.abs(tzRaw) % 60;
 263         var tzString = ((tzRaw >= 0) ? "-" : "") + ((tzHour < 10) ? "0" : "") + tzHour +
 264                 ":" + ((tzMin < 10) ? "0" : "") + tzMin;
 265         return tzString;
 266 }
 267
 268 function guessTimezone(box) {
 269         document.getElementsByName("wpHourDiff")[0].value = fetchTimezone();
 270 }
 271
 272 function showTocToggle() {
 273         if (document.createTextNode) {
 274                 // Uses DOM calls to avoid document.write + XHTML issues
 275
 276                 var linkHolder = document.getElementById('toctitle');
 277                 if (!linkHolder) {
 278                         return;
 279                 }
 280
 281                 var outerSpan = document.createElement('span');
 282                 outerSpan.className = 'toctoggle';
 283
 284                 var toggleLink = document.createElement('a');
 285                 toggleLink.id = 'togglelink';
 286                 toggleLink.className = 'internal';
 287                 toggleLink.href = 'javascript:toggleToc()';
 288                 toggleLink.appendChild(document.createTextNode(tocHideText));
 289
 290                 outerSpan.appendChild(document.createTextNode('['));
 291                 outerSpan.appendChild(toggleLink);
 292                 outerSpan.appendChild(document.createTextNode(']'));
 293
 294                 linkHolder.appendChild(document.createTextNode(' '));
 295                 linkHolder.appendChild(outerSpan);
 296
 297                 var cookiePos = document.cookie.indexOf("hidetoc=");
 298                 if (cookiePos > -1 && document.cookie.charAt(cookiePos + 8) == 1) {
 299                         toggleToc();
 300                 }
 301         }
 302 }
 303
 304 function changeText(el, newText) {
 305         // Safari work around
 306         if (el.innerText) {
 307                 el.innerText = newText;
 308         } else if (el.firstChild && el.firstChild.nodeValue) {
 309                 el.firstChild.nodeValue = newText;
 310         }
 311 }
 312
 313 function toggleToc() {
 314         var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
 315         var toggleLink = document.getElementById('togglelink');
 316
 317         if (toc && toggleLink && toc.style.display == 'none') {
 318                 changeText(toggleLink, tocHideText);
 319                 toc.style.display = 'block';
 320                 document.cookie = "hidetoc=0";
 321         } else {
 322                 changeText(toggleLink, tocShowText);
 323                 toc.style.display = 'none';
 324                 document.cookie = "hidetoc=1";
 325         }
 326 }
 327
 328 var mwEditButtons = [];
 329 var mwCustomEditButtons = []; // eg to add in MediaWiki:Common.js
 330
 331 // this function generates the actual toolbar buttons with localized text
 332 // we use it to avoid creating the toolbar where javascript is not enabled
 333 function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText) {
 334         // Don't generate buttons for browsers which don't fully
 335         // support it.
 336         mwEditButtons[mwEditButtons.length] =
 337                 {"imageFile": imageFile,
 338                  "speedTip": speedTip,
 339                  "tagOpen": tagOpen,
 340                  "tagClose": tagClose,
 341                  "sampleText": sampleText};
 342 }
 343
 344 // this function generates the actual toolbar buttons with localized text
 345 // we use it to avoid creating the toolbar where javascript is not enabled
 346 function mwInsertEditButton(parent, item) {
 347         var image = document.createElement("img");
 348         image.width = 23;
 349         image.height = 22;
 350         image.src = item.imageFile;
 351         image.border = 0;
 352         image.alt = item.speedTip;
 353         image.title = item.speedTip;
 354         image.style.cursor = "pointer";
 355         image.onclick = function() {
 356                 insertTags(item.tagOpen, item.tagClose, item.sampleText);
 357                 return false;
 358         };
 359
 360         parent.appendChild(image);
 361         return true;
 362 }
 363
 364 function mwSetupToolbar() {
 365         var toolbar = document.getElementById('toolbar');
 366         if (!toolbar) { return false; }
 367
 368         var textbox = document.getElementById('wpTextbox1');
 369         if (!textbox) { return false; }
 370
 371         // Don't generate buttons for browsers which don't fully
 372         // support it.
 373         if (!document.selection && textbox.selectionStart === null) {
 374                 return false;
 375         }
 376
 377         for (var i in mwEditButtons) {
 378                 mwInsertEditButton(toolbar, mwEditButtons[i]);
 379         }
 380         for (i in mwCustomEditButtons) {
 381                 mwInsertEditButton(toolbar, mwCustomEditButtons[i]);
 382         }
 383         return true;
 384 }
 385
 386 function escapeQuotes(text) {
 387         var re = new RegExp("'","g");
 388         text = text.replace(re,"\\'");
 389         re = new RegExp("\\n","g");
 390         text = text.replace(re,"\\n");
 391         return escapeQuotesHTML(text);
 392 }
 393
 394 function escapeQuotesHTML(text) {
 395         var re = new RegExp('&',"g");
 396         text = text.replace(re,"&amp;");
 397         re = new RegExp('"',"g");
 398         text = text.replace(re,"&quot;");
 399         re = new RegExp('<',"g");
 400         text = text.replace(re,"&lt;");
 401         re = new RegExp('>',"g");
 402         text = text.replace(re,"&gt;");
 403         return text;
 404 }
 405
 406 // apply tagOpen/tagClose to selection in textarea,
 407 // use sampleText instead of selection if there is none
 408 // copied and adapted from phpBB
 409 function insertTags(tagOpen, tagClose, sampleText) {
 410         var txtarea;
 411         if (document.editform) {
 412                 txtarea = document.editform.wpTextbox1;
 413         } else {
 414                 // some alternate form? take the first one we can find
 415                 var areas = document.getElementsByTagName('textarea');
 416                 txtarea = areas[0];
 417         }
 418
 419         // IE
 420         if (document.selection  && !is_gecko) {
 421                 var theSelection = document.selection.createRange().text;
 422                 if (!theSelection) {
 423                         theSelection=sampleText;
 424                 }
 425                 txtarea.focus();
 426                 if (theSelection.charAt(theSelection.length - 1) == " ") { // exclude ending space char, if any
 427                         theSelection = theSelection.substring(0, theSelection.length - 1);
 428                         document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
 429                 } else {
 430                         document.selection.createRange().text = tagOpen + theSelection + tagClose;
 431                 }
 432
 433         // Mozilla
 434         } else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
 435                 var replaced = false;
 436                 var startPos = txtarea.selectionStart;
 437                 var endPos = txtarea.selectionEnd;
 438                 if (endPos-startPos) {
 439                         replaced = true;
 440                 }
 441                 var scrollTop = txtarea.scrollTop;
 442                 var myText = (txtarea.value).substring(startPos, endPos);
 443                 if (!myText) {
 444                         myText=sampleText;
 445                 }
 446                 var subst;
 447                 if (myText.charAt(myText.length - 1) == " ") { // exclude ending space char, if any
 448                         subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
 449                 } else {
 450                         subst = tagOpen + myText + tagClose;
 451                 }
 452                 txtarea.value = txtarea.value.substring(0, startPos) + subst +
 453                         txtarea.value.substring(endPos, txtarea.value.length);
 454                 txtarea.focus();
 455                 //set new selection
 456                 if (replaced) {
 457                         var cPos = startPos+(tagOpen.length+myText.length+tagClose.length);
 458                         txtarea.selectionStart = cPos;
 459                         txtarea.selectionEnd = cPos;
 460                 } else {
 461                         txtarea.selectionStart = startPos+tagOpen.length;
 462                         txtarea.selectionEnd = startPos+tagOpen.length+myText.length;
 463                 }
 464                 txtarea.scrollTop = scrollTop;
 465
 466         // All other browsers get no toolbar.
 467         // There was previously support for a crippled "help"
 468         // bar, but that caused more problems than it solved.
 469         }
 470         // reposition cursor if possible
 471         if (txtarea.createTextRange) {
 472                 txtarea.caretPos = document.selection.createRange().duplicate();
 473         }
 474 }
 475
 476 /**
 477  * Set up accesskeys/tooltips.  If doId is specified, only set up for that id.
 478  * Note that the ta array is deprecated and will not be supported indefinite-
 479  * ly -- use the accesskey/tooltip messages instead.
 480  *
 481  * @param mixed doId string or null
 482  */
 483 function akeytt( doId ) {
 484         // A lot of user scripts (and some of the code below) break if
 485         // ta isn't defined, so we make sure it is.  Explictly using
 486         // window.ta avoids a "ta is not defined" error.
 487         if (!window.ta) window.ta = new Array;
 488
 489         // Make a local, possibly restricted, copy to avoid clobbering
 490         // the original.
 491         var ta;
 492         if ( doId ) {
 493                 ta = new Array;
 494                 ta[doId] = window.ta[doId];
 495         } else {
 496                 ta = window.ta;
 497         }
 498
 499         // Set the accesskey prefix based on browser detection
 500         var pref;
 501         if (is_opera) {
 502                 pref = 'shift-esc-';
 503         } else if (is_safari || navigator.userAgent.toLowerCase().indexOf('mac') != -1
 504                 || navigator.userAgent.toLowerCase().indexOf('konqueror') != -1 ) {
 505                 pref = 'ctrl-';
 506         } else if (is_ff2_x11) {
 507                 pref = 'ctrl-shift-';
 508         } else if (is_ff2_win) {
 509                 pref = 'alt-shift-';
 510         } else {
 511                 pref = 'alt-';
 512         }
 513
 514         // If we're resetting all tooltips, rather than just one, add
 515         // the browser-specific pref to accesskeys set the proper way
 516         if ( !doId ) {
 517                 els = document.getElementsByTagName("*");
 518                 for (var i = 0; i < els.length; ++i) {
 519                         var element, tit, key;
 520                         element = els[i];
 521                         if ( (tit = element.getAttribute("title")) && (key = element.getAttribute("accesskey"))
 522                         && tit.search(/\[.\]$/) != -1 ) {
 523                                 element.setAttribute("title", tit.replace(/\[(.)\]$/,"["+pref+key+"]"));
 524                         }
 525                 }
 526         }
 527
 528         // Now deal with evil deprecated ta
 529         for (var id in ta) {
 530                 var n = document.getElementById(id);
 531                 if (n) {
 532                         var a = null;
 533                         var ak = '';
 534                         // Are we putting accesskey in it
 535                         if (ta[id][0].length > 0) {
 536                                 // Is this object a object? If not assume it's the next child.
 537
 538                                 if (n.nodeName.toLowerCase() == "a") {
 539                                         a = n;
 540                                 } else {
 541                                         a = n.childNodes[0];
 542                                 }
 543                                 // Don't add an accesskey for the watch tab if the watch
 544                                 // checkbox is also available.
 545                                 if (a && ((id != 'ca-watch' && id != 'ca-unwatch') ||
 546                                 !(window.location.search.match(/[\?&](action=edit|action=submit)/i)))) {
 547                                         a.accessKey = ta[id][0];
 548                                         ak = ' ['+pref+ta[id][0]+']';
 549                                 }
 550                         } else {
 551                                 // We don't care what type the object is when assigning tooltip
 552                                 a = n;
 553                                 ak = '';
 554                         }
 555
 556                         if (a) {
 557                                 a.title = ta[id][1]+ak;
 558                         }
 559                 }
 560         }
 561 }
 562
 563 function setupRightClickEdit() {
 564         if (document.getElementsByTagName) {
 565                 var spans = document.getElementsByTagName('span');
 566                 for (var i = 0; i < spans.length; i++) {
 567                         var el = spans[i];
 568                         if(el.className == 'editsection') {
 569                                 addRightClickEditHandler(el);
 570                         }
 571                 }
 572         }
 573 }
 574
 575 function addRightClickEditHandler(el) {
 576         for (var i = 0; i < el.childNodes.length; i++) {
 577                 var link = el.childNodes[i];
 578                 if (link.nodeType == 1 && link.nodeName.toLowerCase() == 'a') {
 579                         var editHref = link.getAttribute('href');
 580                         // find the enclosing (parent) header
 581                         var prev = el.parentNode;
 582                         if (prev && prev.nodeType == 1 &&
 583                         prev.nodeName.match(/^[Hh][1-6]$/)) {
 584                                 prev.oncontextmenu = function(e) {
 585                                         if (!e) { e = window.event; }
 586                                         // e is now the event in all browsers
 587                                         var targ;
 588                                         if (e.target) { targ = e.target; }
 589                                         else if (e.srcElement) { targ = e.srcElement; }
 590                                         if (targ.nodeType == 3) { // defeat Safari bug
 591                                                 targ = targ.parentNode;
 592                                         }
 593                                         // targ is now the target element
 594
 595                                         // We don't want to deprive the noble reader of a context menu
 596                                         // for the section edit link, do we?  (Might want to extend this
 597                                         // to all <a>'s?)
 598                                         if (targ.nodeName.toLowerCase() != 'a'
 599                                         || targ.parentNode.className != 'editsection') {
 600                                                 document.location = editHref;
 601                                                 return false;
 602                                         }
 603                                         return true;
 604                                 };
 605                         }
 606                 }
 607         }
 608 }
 609
 610 function setupCheckboxShiftClick() {
 611         if (document.getElementsByTagName) {
 612                 var uls = document.getElementsByTagName('ul');
 613                 var len = uls.length;
 614                 for (var i = 0; i < len; ++i) {
 615                         addCheckboxClickHandlers(uls[i]);
 616                 }
 617         }
 618 }
 619
 620 function addCheckboxClickHandlers(ul, start, finish) {
 621         if (ul.checkboxHandlersTimer) {
 622                 clearInterval(ul.checkboxHandlersTimer);
 623         }
 624         if ( !ul.childNodes ) {
 625                 return;
 626         }
 627         var len = ul.childNodes.length;
 628         if (len < 2) {
 629                 return;
 630         }
 631         start = start || 0;
 632         finish = finish || start + 250;
 633         if ( finish > len ) { finish = len; }
 634         ul.checkboxes = ul.checkboxes || [];
 635         ul.lastCheckbox = ul.lastCheckbox || null;
 636         for (var i = start; i<finish; ++i) {
 637                 var child = ul.childNodes[i];
 638                 if ( child && child.childNodes && child.childNodes[0] ) {
 639                         var cb = child.childNodes[0];
 640                         if ( !cb.nodeName || cb.nodeName.toLowerCase() != 'input' ||
 641                              !cb.type || cb.type.toLowerCase() != 'checkbox' ) {
 642                                 return;
 643                         }
 644                         cb.index = ul.checkboxes.push(cb) - 1;
 645                         cb.container = ul;
 646                         cb.onmouseup = checkboxMouseupHandler;
 647                 }
 648         }
 649         if (finish < len) {
 650           var f=function(){ addCheckboxClickHandlers(ul, finish, finish+250); };
 651           ul.checkboxHandlersTimer=setInterval(f, 200);
 652         }
 653 }
 654
 655 function checkboxMouseupHandler(e) {
 656         if (typeof e == 'undefined') {
 657                 e = window.event;
 658         }
 659         if ( !e.shiftKey || this.container.lastCheckbox === null ) {
 660                 this.container.lastCheckbox = this.index;
 661                 return true;
 662         }
 663         var endState = !this.checked;
 664         if ( is_opera ) { // opera has already toggled the checkbox by this point
 665                 endState = !endState;
 666         }
 667         var start, finish;
 668         if ( this.index < this.container.lastCheckbox ) {
 669                 start = this.index + 1;
 670                 finish = this.container.lastCheckbox;
 671         } else {
 672                 start = this.container.lastCheckbox;
 673                 finish = this.index - 1;
 674         }
 675         for (var i = start; i <= finish; ++i ) {
 676                 this.container.checkboxes[i].checked = endState;
 677         }
 678         this.container.lastCheckbox = this.index;
 679         return true;
 680 }
 681
 682 function toggle_element_activation(ida,idb) {
 683         if (!document.getElementById) {
 684                 return;
 685         }
 686         document.getElementById(ida).disabled=true;
 687         document.getElementById(idb).disabled=false;
 688 }
 689
 690 function toggle_element_check(ida,idb) {
 691         if (!document.getElementById) {
 692                 return;
 693         }
 694         document.getElementById(ida).checked=true;
 695         document.getElementById(idb).checked=false;
 696 }
 697
 698 function fillDestFilename(id) {
 699         if (!document.getElementById) {
 700                 return;
 701         }
 702         var path = document.getElementById(id).value;
 703         // Find trailing part
 704         var slash = path.lastIndexOf('/');
 705         var backslash = path.lastIndexOf('\\');
 706         var fname;
 707         if (slash == -1 && backslash == -1) {
 708                 fname = path;
 709         } else if (slash > backslash) {
 710                 fname = path.substring(slash+1, 10000);
 711         } else {
 712                 fname = path.substring(backslash+1, 10000);
 713         }
 714
 715         // Capitalise first letter and replace spaces by underscores
 716         fname = fname.charAt(0).toUpperCase().concat(fname.substring(1,10000)).replace(/ /g, '_');
 717
 718         // Output result
 719         var destFile = document.getElementById('wpDestFile');
 720         if (destFile) {
 721                 destFile.value = fname;
 722         }
 723 }
 724
 725
 726 function considerChangingExpiryFocus() {
 727         if (!document.getElementById) {
 728                 return;
 729         }
 730         var drop = document.getElementById('wpBlockExpiry');
 731         if (!drop) {
 732                 return;
 733         }
 734         var field = document.getElementById('wpBlockOther');
 735         if (!field) {
 736                 return;
 737         }
 738         var opt = drop.value;
 739         if (opt == 'other') {
 740                 field.style.display = '';
 741         } else {
 742                 field.style.display = 'none';
 743         }
 744 }
 745
 746 function scrollEditBox() {
 747         var editBoxEl = document.getElementById("wpTextbox1");
 748         var scrollTopEl = document.getElementById("wpScrolltop");
 749         var editFormEl = document.getElementById("editform");
 750
 751         if (editBoxEl && scrollTopEl) {
 752                 if (scrollTopEl.value) { editBoxEl.scrollTop = scrollTopEl.value; }
 753                 editFormEl.onsubmit = function() {
 754                         document.getElementById("wpScrolltop").value = document.getElementById("wpTextbox1").scrollTop;
 755                 };
 756         }
 757 }
 758
 759 hookEvent("load", scrollEditBox);
 760
 761 var allmessages_nodelist = false;
 762 var allmessages_modified = false;
 763 var allmessages_timeout = false;
 764 var allmessages_running = false;
 765
 766 function allmessagesmodified() {
 767         allmessages_modified = !allmessages_modified;
 768         allmessagesfilter();
 769 }
 770
 771 function allmessagesfilter() {
 772         if ( allmessages_timeout )
 773                 window.clearTimeout( allmessages_timeout );
 774
 775         if ( !allmessages_running )
 776                 allmessages_timeout = window.setTimeout( 'allmessagesfilter_do();', 500 );
 777 }
 778
 779 function allmessagesfilter_do() {
 780         if ( !allmessages_nodelist )
 781                 return;
 782
 783         var text = document.getElementById('allmessagesinput').value;
 784         var nodef = allmessages_modified;
 785
 786         allmessages_running = true;
 787
 788         for ( var name in allmessages_nodelist ) {
 789                 var nodes = allmessages_nodelist[name];
 790                 var display = ( name.indexOf( text ) == -1 ? 'none' : '' );
 791
 792                 for ( var i = 0; i < nodes.length; i++)
 793                         nodes[i].style.display =
 794                                 ( nodes[i].className == "def" && nodef
 795                                   ? 'none' : display );
 796         }
 797
 798         if ( text != document.getElementById('allmessagesinput').value ||
 799              nodef != allmessages_modified )
 800                 allmessagesfilter_do();  // repeat
 801
 802         allmessages_running = false;
 803 }
 804
 805 function allmessagesfilter_init() {
 806         if ( allmessages_nodelist )
 807                 return;
 808
 809         var nodelist = new Array();
 810         var templist = new Array();
 811
 812         var table = document.getElementById('allmessagestable');
 813         if ( !table ) return;
 814
 815         var rows = document.getElementsByTagName('tr');
 816         for ( var i = 0; i < rows.length; i++ ) {
 817                 var id = rows[i].getAttribute('id')
 818                 if ( id && id.substring(0,16) != 'sp-allmessages-r' ) continue;
 819                 templist[ id ] = rows[i];
 820         }
 821
 822         var spans = table.getElementsByTagName('span');
 823         for ( var i = 0; i < spans.length; i++ ) {
 824                 var id = spans[i].getAttribute('id')
 825                 if ( id && id.substring(0,17) != 'sp-allmessages-i-' ) continue;
 826                 if ( !spans[i].firstChild || spans[i].firstChild.nodeType != 3 ) continue;
 827
 828                 var nodes = new Array();
 829                 var row1 = templist[ id.replace('i', 'r1') ];
 830                 var row2 = templist[ id.replace('i', 'r2') ];
 831
 832                 if ( row1 ) nodes[nodes.length] = row1;
 833                 if ( row2 ) nodes[nodes.length] = row2;
 834                 nodelist[ spans[i].firstChild.nodeValue ] = nodes;
 835         }
 836
 837         var k = document.getElementById('allmessagesfilter');
 838         if (k) { k.style.display = ''; }
 839
 840         allmessages_nodelist = nodelist;
 841 }
 842
 843 hookEvent( "load", allmessagesfilter_init );
 844
 845 /*
 846         Written by Jonathan Snook, http://www.snook.ca/jonathan
 847         Add-ons by Robert Nyman, http://www.robertnyman.com
 848         Author says "The credit comment is all it takes, no license. Go crazy with it!:-)"
 849         From http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/
 850 */
 851 function getElementsByClassName(oElm, strTagName, oClassNames){
 852         var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
 853         var arrReturnElements = new Array();
 854         var arrRegExpClassNames = new Array();
 855         if(typeof oClassNames == "object"){
 856                 for(var i=0; i<oClassNames.length; i++){
 857                         arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames[i].replace(/\-/g, "\\-") + "(\\s|$)"));
 858                 }
 859         }
 860         else{
 861                 arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames.replace(/\-/g, "\\-") + "(\\s|$)"));
 862         }
 863         var oElement;
 864         var bMatchesAll;
 865         for(var j=0; j<arrElements.length; j++){
 866                 oElement = arrElements[j];
 867                 bMatchesAll = true;
 868                 for(var k=0; k<arrRegExpClassNames.length; k++){
 869                         if(!arrRegExpClassNames[k].test(oElement.className)){
 870                                 bMatchesAll = false;
 871                                 break;
 872                         }
 873                 }
 874                 if(bMatchesAll){
 875                         arrReturnElements.push(oElement);
 876                 }
 877         }
 878         return (arrReturnElements)
 879 }
 880
 881 function sortableTables() {
 882         if (getElementsByClassName(document, "table", "sortable").length != 0) {
 883                 document.write('<script type="text/javascript" src="'+stylepath+'/common/sorttable.js"></script>');
 884         }
 885 }
 886
 887 function redirectToFragment(fragment) {
 888         var match = navigator.userAgent.match(/AppleWebKit\/(\d+)/);
 889         if (match) {
 890                 var webKitVersion = parseInt(match[1]);
 891                 if (webKitVersion < 420) {
 892                         // Released Safari w/ WebKit 418.9.1 messes up horribly
 893                         // Nightlies of 420+ are ok
 894                         return;
 895                 }
 896         }
 897         if (is_gecko) {
 898                 // Mozilla needs to wait until after load, otherwise the window doesn't scroll
 899                 addOnloadHook(function () {
 900                         if (window.location.hash == "")
 901                                 window.location.hash = fragment;
 902                 });
 903         } else {
 904                 if (window.location.hash == "")
 905                         window.location.hash = fragment;
 906         }
 907 }
 908
 909 function runOnloadHook() {
 910         // don't run anything below this for non-dom browsers
 911         if (doneOnloadHook || !(document.getElementById && document.getElementsByTagName)) {
 912                 return;
 913         }
 914
 915         histrowinit();
 916         unhidetzbutton();
 917         tabbedprefs();
 918         akeytt( null );
 919         scrollEditBox();
 920         setupCheckboxShiftClick();
 921         sortableTables();
 922
 923         // Run any added-on functions
 924         for (var i = 0; i < onloadFuncts.length; i++) {
 925                 onloadFuncts[i]();
 926         }
 927
 928         doneOnloadHook = true;
 929 }
 930
 931 //note: all skins should call runOnloadHook() at the end of html output,
 932 //      so the below should be redundant. It's there just in case.
 933 hookEvent("load", runOnloadHook);
 934
 935 hookEvent("load", mwSetupToolbar);