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 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  18
  19 var doneOnloadHook;
  20
  21 if (!window.onloadFuncts)
  22         var onloadFuncts = [];
  23
  24 function addOnloadHook(hookFunct) {
  25         // Allows add-on scripts to add onload functions
  26         onloadFuncts[onloadFuncts.length] = hookFunct;
  27 }
  28
  29 function runOnloadHook() {
  30         // don't run anything below this for non-dom browsers
  31         if (doneOnloadHook || !(document.getElementById && document.getElementsByTagName))
  32                 return;
  33
  34         histrowinit();
  35         unhidetzbutton();
  36         tabbedprefs();
  37         akeytt();
  38         scrollEditBox();
  39         setupCheckboxShiftClick();
  40
  41         // Run any added-on functions
  42         for (var i = 0; i < onloadFuncts.length; i++)
  43                 onloadFuncts[i]();
  44
  45         doneOnloadHook = true;
  46 }
  47
  48 function hookEvent(hookName, hookFunct) {
  49         if (window.addEventListener)
  50                 addEventListener(hookName, hookFunct, false);
  51         else if (window.attachEvent)
  52                 attachEvent("on" + hookName, hookFunct);
  53 }
  54
  55 //note: all skins shoud call runOnloadHook() at the end of html output,
  56 //      so the below should be redundant. It's there just in case.
  57 hookEvent("load", runOnloadHook);
  58
  59 // document.write special stylesheet links
  60 if (typeof stylepath != 'undefined' && typeof skin != 'undefined') {
  61         if (is_opera_preseven) {
  62                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera6Fixes.css">');
  63         } else if (is_opera_seven) {
  64                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera7Fixes.css">');
  65         } else if (is_khtml) {
  66                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/KHTMLFixes.css">');
  67         }
  68 }
  69 // Un-trap us from framesets
  70 if (window.top != window)
  71         window.top.location = window.location;
  72
  73 // for enhanced RecentChanges
  74 function toggleVisibility(_levelId, _otherId, _linkId) {
  75         var thisLevel = document.getElementById(_levelId);
  76         var otherLevel = document.getElementById(_otherId);
  77         var linkLevel = document.getElementById(_linkId);
  78         if (thisLevel.style.display == 'none') {
  79                 thisLevel.style.display = 'block';
  80                 otherLevel.style.display = 'none';
  81                 linkLevel.style.display = 'inline';
  82         } else {
  83                 thisLevel.style.display = 'none';
  84                 otherLevel.style.display = 'inline';
  85                 linkLevel.style.display = 'none';
  86         }
  87 }
  88
  89 // page history stuff
  90 // attach event handlers to the input elements on history page
  91 function histrowinit() {
  92         var hf = document.getElementById('pagehistory');
  93         if (!hf)
  94                 return;
  95         var lis = hf.getElementsByTagName('li');
  96         for (var i = 0; i < lis.length; i++) {
  97                 var inputs = historyRadios(lis[i]);
  98                 if (inputs[0] && inputs[1]) {
  99                         inputs[0].onclick = diffcheck;
 100                         inputs[1].onclick = diffcheck;
 101                 }
 102         }
 103         diffcheck();
 104 }
 105
 106 function historyRadios(parent) {
 107         var inputs = parent.getElementsByTagName('input');
 108         var radios = [];
 109         for (var i = 0; i < inputs.length; i++) {
 110                 if (inputs[i].name == "diff" || inputs[i].name == "oldid")
 111                         radios[radios.length] = inputs[i];
 112         }
 113         return radios;
 114 }
 115
 116 // check selection and tweak visibility/class onclick
 117 function diffcheck() {
 118         var dli = false; // the li where the diff radio is checked
 119         var oli = false; // the li where the oldid radio is checked
 120         var hf = document.getElementById('pagehistory');
 121         if (!hf)
 122                 return true;
 123         var lis = hf.getElementsByTagName('li');
 124         for (i=0;i<lis.length;i++) {
 125                 var inputs = historyRadios(lis[i]);
 126                 if (inputs[1] && inputs[0]) {
 127                         if (inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
 128                                 if (inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value)
 129                                         return false;
 130                                 if (oli) { // it's the second checked radio
 131                                         if (inputs[1].checked) {
 132                                                 oli.className = "selected";
 133                                                 return false;
 134                                         }
 135                                 } else if (inputs[0].checked) {
 136                                         return false;
 137                                 }
 138                                 if (inputs[0].checked)
 139                                         dli = lis[i];
 140                                 if (!oli)
 141                                         inputs[0].style.visibility = 'hidden';
 142                                 if (dli)
 143                                         inputs[1].style.visibility = 'hidden';
 144                                 lis[i].className = "selected";
 145                                 oli = lis[i];
 146                         }  else { // no radio is checked in this row
 147                                 if (!oli)
 148                                         inputs[0].style.visibility = 'hidden';
 149                                 else
 150                                         inputs[0].style.visibility = 'visible';
 151                                 if (dli)
 152                                         inputs[1].style.visibility = 'hidden';
 153                                 else
 154                                         inputs[1].style.visibility = 'visible';
 155                                 lis[i].className = "";
 156                         }
 157                 }
 158         }
 159         return true;
 160 }
 161
 162 // generate toc from prefs form, fold sections
 163 // XXX: needs testing on IE/Mac and safari
 164 // more comments to follow
 165 function tabbedprefs() {
 166         var prefform = document.getElementById('preferences');
 167         if (!prefform || !document.createElement)
 168                 return;
 169         if (prefform.nodeName.toLowerCase() == 'a')
 170                 return; // Occasional IE problem
 171         prefform.className = prefform.className + 'jsprefs';
 172         var sections = new Array();
 173         var children = prefform.childNodes;
 174         var seci = 0;
 175         for (var i = 0; i < children.length; i++) {
 176                 if (children[i].nodeName.toLowerCase() == 'fieldset') {
 177                         children[i].id = 'prefsection-' + seci;
 178                         children[i].className = 'prefsection';
 179                         if (is_opera || is_khtml)
 180                                 children[i].className = 'prefsection operaprefsection';
 181                         var legends = children[i].getElementsByTagName('legend');
 182                         sections[seci] = new Object();
 183                         legends[0].className = 'mainLegend';
 184                         if (legends[0] && legends[0].firstChild.nodeValue)
 185                                 sections[seci].text = legends[0].firstChild.nodeValue;
 186                         else
 187                                 sections[seci].text = '# ' + seci;
 188                         sections[seci].secid = children[i].id;
 189                         seci++;
 190                         if (sections.length != 1)
 191                                 children[i].style.display = 'none';
 192                         else
 193                                 var selectedid = children[i].id;
 194                 }
 195         }
 196         var toc = document.createElement('ul');
 197         toc.id = 'preftoc';
 198         toc.selectedid = selectedid;
 199         for (i = 0; i < sections.length; i++) {
 200                 var li = document.createElement('li');
 201                 if (i == 0)
 202                         li.className = 'selected';
 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 // in [-]HH:MM format...
 254 // won't yet work with non-even tzs
 255 function fetchTimezone() {
 256         // FIXME: work around Safari bug
 257         var localclock = new Date();
 258         // returns negative offset from GMT in minutes
 259         var tzRaw = localclock.getTimezoneOffset();
 260         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 261         var tzMin = Math.abs(tzRaw) % 60;
 262         var tzString = ((tzRaw >= 0) ? "-" : "") + ((tzHour < 10) ? "0" : "") + tzHour +
 263                 ":" + ((tzMin < 10) ? "0" : "") + tzMin;
 264         return tzString;
 265 }
 266
 267 function guessTimezone(box) {
 268         document.getElementsByName("wpHourDiff")[0].value = fetchTimezone();
 269 }
 270
 271 function showTocToggle() {
 272         if (document.createTextNode) {
 273                 // Uses DOM calls to avoid document.write + XHTML issues
 274
 275                 var linkHolder = document.getElementById('toctitle')
 276                 if (!linkHolder)
 277                         return;
 278
 279                 var outerSpan = document.createElement('span');
 280                 outerSpan.className = 'toctoggle';
 281
 282                 var toggleLink = document.createElement('a');
 283                 toggleLink.id = 'togglelink';
 284                 toggleLink.className = 'internal';
 285                 toggleLink.href = 'javascript:toggleToc()';
 286                 toggleLink.appendChild(document.createTextNode(tocHideText));
 287
 288                 outerSpan.appendChild(document.createTextNode('['));
 289                 outerSpan.appendChild(toggleLink);
 290                 outerSpan.appendChild(document.createTextNode(']'));
 291
 292                 linkHolder.appendChild(document.createTextNode(' '));
 293                 linkHolder.appendChild(outerSpan);
 294
 295                 var cookiePos = document.cookie.indexOf("hidetoc=");
 296                 if (cookiePos > -1 && document.cookie.charAt(cookiePos + 8) == 1)
 297                         toggleToc();
 298         }
 299 }
 300
 301 function changeText(el, newText) {
 302         // Safari work around
 303         if (el.innerText)
 304                 el.innerText = newText;
 305         else if (el.firstChild && el.firstChild.nodeValue)
 306                 el.firstChild.nodeValue = newText;
 307 }
 308
 309 function toggleToc() {
 310         var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
 311         var toggleLink = document.getElementById('togglelink')
 312
 313         if (toc && toggleLink && toc.style.display == 'none') {
 314                 changeText(toggleLink, tocHideText);
 315                 toc.style.display = 'block';
 316                 document.cookie = "hidetoc=0";
 317         } else {
 318                 changeText(toggleLink, tocShowText);
 319                 toc.style.display = 'none';
 320                 document.cookie = "hidetoc=1";
 321         }
 322 }
 323
 324 var mwEditButtons = [];
 325 var mwCustomEditButtons = []; // eg to add in MediaWiki:Common.js
 326
 327 // this function generates the actual toolbar buttons with localized text
 328 // we use it to avoid creating the toolbar where javascript is not enabled
 329 function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText) {
 330         // Don't generate buttons for browsers which don't fully
 331         // support it.
 332         mwEditButtons[mwEditButtons.length] =
 333                 {"imageFile": imageFile,
 334                  "speedTip": speedTip,
 335                  "tagOpen": tagOpen,
 336                  "tagClose": tagClose,
 337                  "sampleText": sampleText};
 338 }
 339
 340 // this function generates the actual toolbar buttons with localized text
 341 // we use it to avoid creating the toolbar where javascript is not enabled
 342 function mwInsertEditButton(parent, item) {
 343         var image = document.createElement("img");
 344         image.width = 23;
 345         image.height = 22;
 346         image.src = item.imageFile;
 347         image.border = 0;
 348         image.alt = item.speedTip;
 349         image.title = item.speedTip;
 350         image.style.cursor = "pointer";
 351         image.onclick = function() {
 352                 insertTags(item.tagOpen, item.tagClose, item.sampleText);
 353                 return false;
 354         }
 355
 356         parent.appendChild(image);
 357         return true;
 358 }
 359
 360 function mwSetupToolbar() {
 361         var toolbar = document.getElementById('toolbar');
 362         if (!toolbar) return false;
 363
 364         var textbox = document.getElementById('wpTextbox1');
 365         if (!textbox) return false;
 366
 367         // Don't generate buttons for browsers which don't fully
 368         // support it.
 369         if (!document.selection && textbox.selectionStart == null)
 370                 return false;
 371
 372         for (var i in mwEditButtons) {
 373                 mwInsertEditButton(toolbar, mwEditButtons[i]);
 374         }
 375         for (var i in mwCustomEditButtons) {
 376                 mwInsertEditButton(toolbar, mwCustomEditButtons[i]);
 377         }
 378         return true;
 379 }
 380
 381 function escapeQuotes(text) {
 382         var re = new RegExp("'","g");
 383         text = text.replace(re,"\\'");
 384         re = new RegExp("\\n","g");
 385         text = text.replace(re,"\\n");
 386         return escapeQuotesHTML(text);
 387 }
 388
 389 function escapeQuotesHTML(text) {
 390         var re = new RegExp('&',"g");
 391         text = text.replace(re,"&amp;");
 392         var re = new RegExp('"',"g");
 393         text = text.replace(re,"&quot;");
 394         var re = new RegExp('<',"g");
 395         text = text.replace(re,"&lt;");
 396         var re = new RegExp('>',"g");
 397         text = text.replace(re,"&gt;");
 398         return text;
 399 }
 400
 401 // apply tagOpen/tagClose to selection in textarea,
 402 // use sampleText instead of selection if there is none
 403 // copied and adapted from phpBB
 404 function insertTags(tagOpen, tagClose, sampleText) {
 405         if (document.editform)
 406                 var txtarea = document.editform.wpTextbox1;
 407         else {
 408                 // some alternate form? take the first one we can find
 409                 var areas = document.getElementsByTagName('textarea');
 410                 var txtarea = areas[0];
 411         }
 412
 413         // IE
 414         if (document.selection  && !is_gecko) {
 415                 var theSelection = document.selection.createRange().text;
 416                 if (!theSelection)
 417                         theSelection=sampleText;
 418                 txtarea.focus();
 419                 if (theSelection.charAt(theSelection.length - 1) == " ") { // exclude ending space char, if any
 420                         theSelection = theSelection.substring(0, theSelection.length - 1);
 421                         document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
 422                 } else {
 423                         document.selection.createRange().text = tagOpen + theSelection + tagClose;
 424                 }
 425
 426         // Mozilla
 427         } else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
 428                 var replaced = false;
 429                 var startPos = txtarea.selectionStart;
 430                 var endPos = txtarea.selectionEnd;
 431                 if (endPos-startPos)
 432                         replaced = true;
 433                 var scrollTop = txtarea.scrollTop;
 434                 var myText = (txtarea.value).substring(startPos, endPos);
 435                 if (!myText)
 436                         myText=sampleText;
 437                 if (myText.charAt(myText.length - 1) == " ") { // exclude ending space char, if any
 438                         subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
 439                 } else {
 440                         subst = tagOpen + myText + tagClose;
 441                 }
 442                 txtarea.value = txtarea.value.substring(0, startPos) + subst +
 443                         txtarea.value.substring(endPos, txtarea.value.length);
 444                 txtarea.focus();
 445                 //set new selection
 446                 if (replaced) {
 447                         var cPos = startPos+(tagOpen.length+myText.length+tagClose.length);
 448                         txtarea.selectionStart = cPos;
 449                         txtarea.selectionEnd = cPos;
 450                 } else {
 451                         txtarea.selectionStart = startPos+tagOpen.length;
 452                         txtarea.selectionEnd = startPos+tagOpen.length+myText.length;
 453                 }
 454                 txtarea.scrollTop = scrollTop;
 455
 456         // All other browsers get no toolbar.
 457         // There was previously support for a crippled "help"
 458         // bar, but that caused more problems than it solved.
 459         }
 460         // reposition cursor if possible
 461         if (txtarea.createTextRange)
 462                 txtarea.caretPos = document.selection.createRange().duplicate();
 463 }
 464
 465 function akeytt() {
 466         if (typeof ta == "undefined" || !ta)
 467                 return;
 468         if (is_safari || navigator.userAgent.toLowerCase().indexOf('mac') + 1
 469                 || navigator.userAgent.toLowerCase().indexOf('konqueror') + 1 )
 470                 pref = 'control-';
 471         else if (is_opera)
 472                 pref = 'shift-esc-';
 473         else if (is_ff2_x11)
 474                 pref = 'ctrl-shift-';
 475         else if (is_ff2_win)
 476                 pref = 'alt-shift-';
 477         else
 478                 pref = 'alt-';
 479
 480         for (var id in ta) {
 481                 var n = document.getElementById(id);
 482                 if (n) {
 483                         var a = null;
 484                         var ak = '';
 485                         // Are we putting accesskey in it
 486                         if (ta[id][0].length > 0) {
 487                                 // Is this object a object? If not assume it's the next child.
 488
 489                                 if (n.nodeName.toLowerCase() == "a") {
 490                                         a = n;
 491                                 } else {
 492                                         a = n.childNodes[0];
 493                                 }
 494                                 // Don't add an accesskey for the watch tab if the watch
 495                                 // checkbox is also available.
 496                                 if (a && ((id != 'ca-watch' && id != 'ca-unwatch') ||
 497                                 !(window.location.search.match(/[\?&](action=edit|action=submit)/i)))) {
 498                                         a.accessKey = ta[id][0];
 499                                         ak = ' ['+pref+ta[id][0]+']';
 500                                 }
 501                         } else {
 502                                 // We don't care what type the object is when assigning tooltip
 503                                 a = n;
 504                                 ak = '';
 505                         }
 506
 507                         if (a) {
 508                                 a.title = ta[id][1]+ak;
 509                         }
 510                 }
 511         }
 512 }
 513
 514 function setupRightClickEdit() {
 515         if (document.getElementsByTagName) {
 516                 var spans = document.getElementsByTagName('span');
 517                 for (var i = 0; i < spans.length; i++) {
 518                         var el = spans[i];
 519                         if(el.className == 'editsection') {
 520                                 addRightClickEditHandler(el);
 521                         }
 522                 }
 523         }
 524 }
 525
 526 function addRightClickEditHandler(el) {
 527         for (var i = 0; i < el.childNodes.length; i++) {
 528                 var link = el.childNodes[i];
 529                 if (link.nodeType == 1 && link.nodeName.toLowerCase() == 'a') {
 530                         var editHref = link.getAttribute('href');
 531                         // find the enclosing (parent) header
 532                         var prev = el.parentNode;
 533                         if (prev && prev.nodeType == 1 &&
 534                         prev.nodeName.match(/^[Hh][1-6]$/)) {
 535                                 prev.oncontextmenu = function(e) {
 536                                         if (!e) e = window.event;
 537                                         // e is now the event in all browsers
 538                                         if (e.target) var targ = e.target;
 539                                         else if (e.srcElement) var targ = e.srcElement;
 540                                         if (targ.nodeType == 3) // defeat Safari bug
 541                                                 targ = targ.parentNode;
 542                                         // targ is now the target element
 543
 544                                         // We don't want to deprive the noble reader of a context menu
 545                                         // for the section edit link, do we?  (Might want to extend this
 546                                         // to all <a>'s?)
 547                                         if (targ.nodeName.toLowerCase() != 'a'
 548                                         || targ.parentNode.className != 'editsection') {
 549                                                 document.location = editHref;
 550                                                 return false;
 551                                         }
 552                                 }
 553                         }
 554                 }
 555         }
 556 }
 557 /*
 558 function addRightClickEditHandler(el) {
 559         // find the enclosing (parent) header
 560         var par = el.parentNode;
 561         if (par && par.nodeType == 1 && par.nodeName.match(/^[Hh][1-6]$/)) {
 562                 par.oncontextmenu = function(e) {
 563                         if (!e) var e = window.event;
 564                         // e is now the event in all browsers
 565                         if (e.target) targ = e.target;
 566                         else if (e.srcElement) targ = e.srcElement;
 567                         if (targ.nodeType == 3) // defeat Safari bug
 568                                 targ = targ.parentNode;
 569                         // targ is now the target element
 570                         // We don't want to deprive the noble reader of a context menu
 571                         // for the section edit link, do we?  (Might want to extend this
 572                         // to all <a>'s.)links
 573                         if (targ.className != 'editsection') {
 574                                 document.location = editHref;
 575                                 return false;
 576                         }
 577                 }
 578         }
 579 }
 580 */
 581
 582 function setupCheckboxShiftClick() {
 583         if (document.getElementsByTagName) {
 584                 var uls = document.getElementsByTagName('ul');
 585                 var len = uls.length;
 586                 for (var i = 0; i < len; ++i) {
 587                         addCheckboxClickHandlers(uls[i]);
 588                 }
 589         }
 590 }
 591
 592 function addCheckboxClickHandlers(ul, start, finish) {
 593         if (ul.checkboxHandlersTimer) {
 594                 clearInterval(ul.checkboxHandlersTimer);
 595         }
 596         if ( !ul.childNodes ) {
 597                 return;
 598         }
 599         var len = ul.childNodes.length;
 600         if (len < 2) {
 601                 return;
 602         }
 603         start = start || 0;
 604         finish = finish || start + 250;
 605         if ( finish > len ) { finish = len; }
 606         ul.checkboxes = ul.checkboxes || [];
 607         ul.lastCheckbox = ul.lastCheckbox || null;
 608         for (var i = start; i<finish; ++i) {
 609                 var child = ul.childNodes[i];
 610                 if ( child && child.childNodes && child.childNodes[0] ) {
 611                         var cb = child.childNodes[0];
 612                         if ( !cb.nodeName || cb.nodeName.toLowerCase() != 'input' ||
 613                              !cb.type || cb.type.toLowerCase() != 'checkbox' ) {
 614                                 return;
 615                         }
 616                         cb.index = ul.checkboxes.push(cb) - 1;
 617                         cb.container = ul;
 618                         cb.onmouseup = checkboxMouseupHandler;
 619                 }
 620         }
 621         if (finish < len) {
 622           var f=function(){ addCheckboxClickHandlers(ul, finish, finish+250); };
 623           ul.checkboxHandlersTimer=setInterval(f, 200);
 624         }
 625 }
 626
 627 function checkboxMouseupHandler(e) {
 628         if (typeof e == 'undefined') {
 629                 e = window.event;
 630         }
 631         if ( !e.shiftKey || this.container.lastCheckbox === null ) {
 632                 this.container.lastCheckbox = this.index;
 633                 return true;
 634         }
 635         var endState = !this.checked;
 636         if ( is_opera ) { // opera has already toggled the checkbox by this point
 637                 endState = !endState;
 638         }
 639         var start, finish;
 640         if ( this.index < this.container.lastCheckbox ) {
 641                 start = this.index + 1;
 642                 finish = this.container.lastCheckbox;
 643         } else {
 644                 start = this.container.lastCheckbox;
 645                 finish = this.index - 1;
 646         }
 647         for (var i = start; i <= finish; ++i ) {
 648                 this.container.checkboxes[i].checked = endState;
 649         }
 650         this.container.lastCheckbox = this.index;
 651         return true;
 652 }
 653
 654 function toggle_element_activation(ida,idb) {
 655         if (!document.getElementById)
 656                 return;
 657         document.getElementById(ida).disabled=true;
 658         document.getElementById(idb).disabled=false;
 659 }
 660
 661 function toggle_element_check(ida,idb) {
 662         if (!document.getElementById)
 663                 return;
 664         document.getElementById(ida).checked=true;
 665         document.getElementById(idb).checked=false;
 666 }
 667
 668 function fillDestFilename(id) {
 669         if (!document.getElementById)
 670                 return;
 671         var path = document.getElementById(id).value;
 672         // Find trailing part
 673         var slash = path.lastIndexOf('/');
 674         var backslash = path.lastIndexOf('\\');
 675         var fname;
 676         if (slash == -1 && backslash == -1) {
 677                 fname = path;
 678         } else if (slash > backslash) {
 679                 fname = path.substring(slash+1, 10000);
 680         } else {
 681                 fname = path.substring(backslash+1, 10000);
 682         }
 683
 684         // Capitalise first letter and replace spaces by underscores
 685         fname = fname.charAt(0).toUpperCase().concat(fname.substring(1,10000)).replace(/ /g, '_');
 686
 687         // Output result
 688         var destFile = document.getElementById('wpDestFile');
 689         if (destFile)
 690                 destFile.value = fname;
 691 }
 692
 693
 694 function considerChangingExpiryFocus() {
 695         if (!document.getElementById)
 696                 return;
 697         var drop = document.getElementById('wpBlockExpiry');
 698         if (!drop)
 699                 return;
 700         var field = document.getElementById('wpBlockOther');
 701         if (!field)
 702                 return;
 703         var opt = drop.value;
 704         if (opt == 'other')
 705                 field.style.display = '';
 706         else
 707                 field.style.display = 'none';
 708 }
 709
 710 function scrollEditBox() {
 711         var editBoxEl = document.getElementById("wpTextbox1");
 712         var scrollTopEl = document.getElementById("wpScrolltop");
 713         var editFormEl = document.getElementById("editform");
 714
 715         if (editBoxEl && scrollTopEl) {
 716                 if (scrollTopEl.value) editBoxEl.scrollTop = scrollTopEl.value;
 717                 editFormEl.onsubmit = function() {
 718                         document.getElementById("wpScrolltop").value = document.getElementById("wpTextbox1").scrollTop;
 719                 }
 720         }
 721 }
 722
 723 hookEvent("load", scrollEditBox);
 724
 725 function allmessagesfilter() {
 726         text = document.getElementById('allmessagesinput').value;
 727         k = document.getElementById('allmessagestable');
 728         if (!k) { return;}
 729
 730         var items = k.getElementsByTagName('span');
 731
 732         if ( text.length > allmessages_prev.length ) {
 733                 for (var i = items.length-1, j = 0; i >= 0; i--) {
 734                         j = allmessagesforeach(items, i, j);
 735                 }
 736         } else {
 737                 for (var i = 0, j = 0; i < items.length; i++) {
 738                         j = allmessagesforeach(items, i, j);
 739                 }
 740         }
 741         allmessages_prev = text;
 742 }
 743
 744 function allmessagesforeach(items, i, j) {
 745         var hItem = items[i].getAttribute('id');
 746         if (hItem.substring(0,17) == 'sp-allmessages-i-') {
 747                 if (items[i].firstChild && items[i].firstChild.nodeName == '#text' && items[i].firstChild.nodeValue.indexOf(text) != -1) {
 748                         var itemA = document.getElementById( hItem.replace('i', 'r1') );
 749                         var itemB = document.getElementById( hItem.replace('i', 'r2') );
 750                         if ( itemA.style.display != '' ) {
 751                                 var s = "allmessageshider(\"" + hItem.replace('i', 'r1') + "\", \"" + hItem.replace('i', 'r2') + "\", '')";
 752                                 var k = window.setTimeout(s,j++*5);
 753                         }
 754                 } else {
 755                         var itemA = document.getElementById( hItem.replace('i', 'r1') );
 756                         var itemB = document.getElementById( hItem.replace('i', 'r2') );
 757                         if ( itemA.style.display != 'none' ) {
 758                                 var s = "allmessageshider(\"" + hItem.replace('i', 'r1') + "\", \"" + hItem.replace('i', 'r2') + "\", 'none')";
 759                                 var k = window.setTimeout(s,j++*5);
 760                         }
 761                 }
 762         }
 763         return j;
 764 }
 765
 766
 767 function allmessageshider(idA, idB, cstyle) {
 768         var itemA = document.getElementById( idA );
 769         var itemB = document.getElementById( idB );
 770         if (itemA) { itemA.style.display = cstyle; }
 771         if (itemB) { itemB.style.display = cstyle; }
 772 }
 773
 774 function allmessagesmodified() {
 775         allmessages_modified = !allmessages_modified;
 776         k = document.getElementById('allmessagestable');
 777         if (!k) { return;}
 778         var items = k.getElementsByTagName('tr');
 779         for (var i = 0, j = 0; i< items.length; i++) {
 780                 if (!allmessages_modified ) {
 781                         if ( items[i].style.display != '' ) {
 782                                 var s = "allmessageshider(\"" + items[i].getAttribute('id') + "\", null, '')";
 783                                 var k = window.setTimeout(s,j++*5);
 784                         }
 785                 } else if (items[i].getAttribute('class') == 'def' && allmessages_modified) {
 786                         if ( items[i].style.display != 'none' ) {
 787                                 var s = "allmessageshider(\"" + items[i].getAttribute('id') + "\", null, 'none')";
 788                                 var k = window.setTimeout(s,j++*5);
 789                         }
 790                 }
 791         }
 792 }
 793
 794 function allmessagesshow() {
 795         k = document.getElementById('allmessagesfilter');
 796         if (k) { k.style.display = ''; }
 797
 798         allmessages_prev = '';
 799         allmessages_modified = false;
 800 }
 801
 802 hookEvent("load", allmessagesshow);
 803 hookEvent("load", mwSetupToolbar);