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 var is_ff2 = (clientPC.indexOf('firefox/2')!=-1 || clientPC.indexOf('minefield/3')!=-1); // For accesskeys
   9 if (clientPC.indexOf('opera') != -1) {
  10         var is_opera = true;
  11         var is_opera_preseven = (window.opera && !document.childNodes);
  12         var is_opera_seven = (window.opera && document.childNodes);
  13 }
  14
  15 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  16
  17 var doneOnloadHook;
  18
  19 if (!window.onloadFuncts)
  20         var onloadFuncts = [];
  21
  22 function addOnloadHook(hookFunct) {
  23         // Allows add-on scripts to add onload functions
  24         onloadFuncts[onloadFuncts.length] = hookFunct;
  25 }
  26
  27 function runOnloadHook() {
  28         // don't run anything below this for non-dom browsers
  29         if (doneOnloadHook || !(document.getElementById && document.getElementsByTagName))
  30                 return;
  31
  32         histrowinit();
  33         unhidetzbutton();
  34         tabbedprefs();
  35         akeytt();
  36         scrollEditBox();
  37         setupCheckboxShiftClick();
  38
  39         // Run any added-on functions
  40         for (var i = 0; i < onloadFuncts.length; i++)
  41                 onloadFuncts[i]();
  42
  43         doneOnloadHook = true;
  44 }
  45
  46 function hookEvent(hookName, hookFunct) {
  47         if (window.addEventListener)
  48                 addEventListener(hookName, hookFunct, false);
  49         else if (window.attachEvent)
  50                 attachEvent("on" + hookName, hookFunct);
  51 }
  52
  53 //note: all skins shoud call runOnloadHook() at the end of html output,
  54 //      so the below should be redundant. It's there just in case.
  55 hookEvent("load", runOnloadHook);
  56
  57 // document.write special stylesheet links
  58 if (typeof stylepath != 'undefined' && typeof skin != 'undefined') {
  59         if (is_opera_preseven) {
  60                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera6Fixes.css">');
  61         } else if (is_opera_seven) {
  62                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera7Fixes.css">');
  63         } else if (is_khtml) {
  64                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/KHTMLFixes.css">');
  65         }
  66 }
  67 // Un-trap us from framesets
  68 if (window.top != window)
  69         window.top.location = window.location;
  70
  71 // for enhanced RecentChanges
  72 function toggleVisibility(_levelId, _otherId, _linkId) {
  73         var thisLevel = document.getElementById(_levelId);
  74         var otherLevel = document.getElementById(_otherId);
  75         var linkLevel = document.getElementById(_linkId);
  76         if (thisLevel.style.display == 'none') {
  77                 thisLevel.style.display = 'block';
  78                 otherLevel.style.display = 'none';
  79                 linkLevel.style.display = 'inline';
  80         } else {
  81                 thisLevel.style.display = 'none';
  82                 otherLevel.style.display = 'inline';
  83                 linkLevel.style.display = 'none';
  84         }
  85 }
  86
  87 // page history stuff
  88 // attach event handlers to the input elements on history page
  89 function histrowinit() {
  90         var hf = document.getElementById('pagehistory');
  91         if (!hf)
  92                 return;
  93         var lis = hf.getElementsByTagName('li');
  94         for (var i = 0; i < lis.length; i++) {
  95                 var inputs = historyRadios(lis[i]);
  96                 if (inputs[0] && inputs[1]) {
  97                         inputs[0].onclick = diffcheck;
  98                         inputs[1].onclick = diffcheck;
  99                 }
 100         }
 101         diffcheck();
 102 }
 103
 104 function historyRadios(parent) {
 105         var inputs = parent.getElementsByTagName('input');
 106         var radios = [];
 107         for (var i = 0; i < inputs.length; i++) {
 108                 if (inputs[i].name == "diff" || inputs[i].name == "oldid")
 109                         radios[radios.length] = inputs[i];
 110         }
 111         return radios;
 112 }
 113
 114 // check selection and tweak visibility/class onclick
 115 function diffcheck() {
 116         var dli = false; // the li where the diff radio is checked
 117         var oli = false; // the li where the oldid radio is checked
 118         var hf = document.getElementById('pagehistory');
 119         if (!hf)
 120                 return true;
 121         var lis = hf.getElementsByTagName('li');
 122         for (i=0;i<lis.length;i++) {
 123                 var inputs = historyRadios(lis[i]);
 124                 if (inputs[1] && inputs[0]) {
 125                         if (inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
 126                                 if (inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value)
 127                                         return false;
 128                                 if (oli) { // it's the second checked radio
 129                                         if (inputs[1].checked) {
 130                                                 oli.className = "selected";
 131                                                 return false;
 132                                         }
 133                                 } else if (inputs[0].checked) {
 134                                         return false;
 135                                 }
 136                                 if (inputs[0].checked)
 137                                         dli = lis[i];
 138                                 if (!oli)
 139                                         inputs[0].style.visibility = 'hidden';
 140                                 if (dli)
 141                                         inputs[1].style.visibility = 'hidden';
 142                                 lis[i].className = "selected";
 143                                 oli = lis[i];
 144                         }  else { // no radio is checked in this row
 145                                 if (!oli)
 146                                         inputs[0].style.visibility = 'hidden';
 147                                 else
 148                                         inputs[0].style.visibility = 'visible';
 149                                 if (dli)
 150                                         inputs[1].style.visibility = 'hidden';
 151                                 else
 152                                         inputs[1].style.visibility = 'visible';
 153                                 lis[i].className = "";
 154                         }
 155                 }
 156         }
 157         return true;
 158 }
 159
 160 // generate toc from prefs form, fold sections
 161 // XXX: needs testing on IE/Mac and safari
 162 // more comments to follow
 163 function tabbedprefs() {
 164         var prefform = document.getElementById('preferences');
 165         if (!prefform || !document.createElement)
 166                 return;
 167         if (prefform.nodeName.toLowerCase() == 'a')
 168                 return; // Occasional IE problem
 169         prefform.className = prefform.className + 'jsprefs';
 170         var sections = new Array();
 171         var children = prefform.childNodes;
 172         var seci = 0;
 173         for (var i = 0; i < children.length; i++) {
 174                 if (children[i].nodeName.toLowerCase() == 'fieldset') {
 175                         children[i].id = 'prefsection-' + seci;
 176                         children[i].className = 'prefsection';
 177                         if (is_opera || is_khtml)
 178                                 children[i].className = 'prefsection operaprefsection';
 179                         var legends = children[i].getElementsByTagName('legend');
 180                         sections[seci] = new Object();
 181                         legends[0].className = 'mainLegend';
 182                         if (legends[0] && legends[0].firstChild.nodeValue)
 183                                 sections[seci].text = legends[0].firstChild.nodeValue;
 184                         else
 185                                 sections[seci].text = '# ' + seci;
 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         var toc = document.createElement('ul');
 195         toc.id = 'preftoc';
 196         toc.selectedid = selectedid;
 197         for (i = 0; i < sections.length; i++) {
 198                 var li = document.createElement('li');
 199                 if (i == 0)
 200                         li.className = 'selected';
 201                 var a = document.createElement('a');
 202                 a.href = '#' + sections[i].secid;
 203                 a.onmousedown = a.onclick = uncoversection;
 204                 a.appendChild(document.createTextNode(sections[i].text));
 205                 a.secid = sections[i].secid;
 206                 li.appendChild(a);
 207                 toc.appendChild(li);
 208         }
 209         prefform.parentNode.insertBefore(toc, prefform.parentNode.childNodes[0]);
 210         document.getElementById('prefsubmit').id = 'prefcontrol';
 211 }
 212
 213 function uncoversection() {
 214         var oldsecid = this.parentNode.parentNode.selectedid;
 215         var newsec = document.getElementById(this.secid);
 216         if (oldsecid != this.secid) {
 217                 var ul = document.getElementById('preftoc');
 218                 document.getElementById(oldsecid).style.display = 'none';
 219                 newsec.style.display = 'block';
 220                 ul.selectedid = this.secid;
 221                 var lis = ul.getElementsByTagName('li');
 222                 for (var i = 0; i< lis.length; i++) {
 223                         lis[i].className = '';
 224                 }
 225                 this.parentNode.className = 'selected';
 226         }
 227         return false;
 228 }
 229
 230 // Timezone stuff
 231 // tz in format [+-]HHMM
 232 function checkTimezone(tz, msg) {
 233         var localclock = new Date();
 234         // returns negative offset from GMT in minutes
 235         var tzRaw = localclock.getTimezoneOffset();
 236         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 237         var tzMin = Math.abs(tzRaw) % 60;
 238         var tzString = ((tzRaw >= 0) ? "-" : "+") + ((tzHour < 10) ? "0" : "") + tzHour + ((tzMin < 10) ? "0" : "") + tzMin;
 239         if (tz != tzString) {
 240                 var junk = msg.split('$1');
 241                 document.write(junk[0] + "UTC" + tzString + junk[1]);
 242         }
 243 }
 244
 245 function unhidetzbutton() {
 246         var tzb = document.getElementById('guesstimezonebutton');
 247         if (tzb)
 248                 tzb.style.display = 'inline';
 249 }
 250
 251 // in [-]HH:MM format...
 252 // won't yet work with non-even tzs
 253 function fetchTimezone() {
 254         // FIXME: work around Safari bug
 255         var localclock = new Date();
 256         // returns negative offset from GMT in minutes
 257         var tzRaw = localclock.getTimezoneOffset();
 258         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 259         var tzMin = Math.abs(tzRaw) % 60;
 260         var tzString = ((tzRaw >= 0) ? "-" : "") + ((tzHour < 10) ? "0" : "") + tzHour +
 261                 ":" + ((tzMin < 10) ? "0" : "") + tzMin;
 262         return tzString;
 263 }
 264
 265 function guessTimezone(box) {
 266         document.getElementsByName("wpHourDiff")[0].value = fetchTimezone();
 267 }
 268
 269 function showTocToggle() {
 270         if (document.createTextNode) {
 271                 // Uses DOM calls to avoid document.write + XHTML issues
 272
 273                 var linkHolder = document.getElementById('toctitle')
 274                 if (!linkHolder)
 275                         return;
 276
 277                 var outerSpan = document.createElement('span');
 278                 outerSpan.className = 'toctoggle';
 279
 280                 var toggleLink = document.createElement('a');
 281                 toggleLink.id = 'togglelink';
 282                 toggleLink.className = 'internal';
 283                 toggleLink.href = 'javascript:toggleToc()';
 284                 toggleLink.appendChild(document.createTextNode(tocHideText));
 285
 286                 outerSpan.appendChild(document.createTextNode('['));
 287                 outerSpan.appendChild(toggleLink);
 288                 outerSpan.appendChild(document.createTextNode(']'));
 289
 290                 linkHolder.appendChild(document.createTextNode(' '));
 291                 linkHolder.appendChild(outerSpan);
 292
 293                 var cookiePos = document.cookie.indexOf("hidetoc=");
 294                 if (cookiePos > -1 && document.cookie.charAt(cookiePos + 8) == 1)
 295                         toggleToc();
 296         }
 297 }
 298
 299 function changeText(el, newText) {
 300         // Safari work around
 301         if (el.innerText)
 302                 el.innerText = newText;
 303         else if (el.firstChild && el.firstChild.nodeValue)
 304                 el.firstChild.nodeValue = newText;
 305 }
 306
 307 function toggleToc() {
 308         var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
 309         var toggleLink = document.getElementById('togglelink')
 310
 311         if (toc && toggleLink && toc.style.display == 'none') {
 312                 changeText(toggleLink, tocHideText);
 313                 toc.style.display = 'block';
 314                 document.cookie = "hidetoc=0";
 315         } else {
 316                 changeText(toggleLink, tocShowText);
 317                 toc.style.display = 'none';
 318                 document.cookie = "hidetoc=1";
 319         }
 320 }
 321
 322 var mwEditButtons = [];
 323 var mwCustomEditButtons = []; // eg to add in MediaWiki:Common.js
 324
 325 // this function generates the actual toolbar buttons with localized text
 326 // we use it to avoid creating the toolbar where javascript is not enabled
 327 function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText) {
 328         // Don't generate buttons for browsers which don't fully
 329         // support it.
 330         mwEditButtons[mwEditButtons.length] =
 331                 {"imageFile": imageFile,
 332                  "speedTip": speedTip,
 333                  "tagOpen": tagOpen,
 334                  "tagClose": tagClose,
 335                  "sampleText": sampleText};
 336 }
 337
 338 // this function generates the actual toolbar buttons with localized text
 339 // we use it to avoid creating the toolbar where javascript is not enabled
 340 function mwInsertEditButton(parent, item) {
 341         var image = document.createElement("img");
 342         image.width = 23;
 343         image.height = 22;
 344         image.src = item.imageFile;
 345         image.border = 0;
 346         image.alt = item.speedTip;
 347         image.title = item.speedTip;
 348         image.style.cursor = "pointer";
 349         image.onclick = function() {
 350                 insertTags(item.tagOpen, item.tagClose, item.sampleText);
 351                 return false;
 352         }
 353
 354         parent.appendChild(image);
 355         return true;
 356 }
 357
 358 function mwSetupToolbar() {
 359         var toolbar = document.getElementById('toolbar');
 360         if (!toolbar) return false;
 361
 362         var textbox = document.getElementById('wpTextbox1');
 363         if (!textbox) return false;
 364
 365         // Don't generate buttons for browsers which don't fully
 366         // support it.
 367         if (!document.selection && textbox.selectionStart == null)
 368                 return false;
 369
 370         for (var i in mwEditButtons) {
 371                 mwInsertEditButton(toolbar, mwEditButtons[i]);
 372         }
 373         for (var i in mwCustomEditButtons) {
 374                 mwInsertEditButton(toolbar, mwCustomEditButtons[i]);
 375         }
 376         return true;
 377 }
 378
 379 function escapeQuotes(text) {
 380         var re = new RegExp("'","g");
 381         text = text.replace(re,"\\'");
 382         re = new RegExp("\\n","g");
 383         text = text.replace(re,"\\n");
 384         return escapeQuotesHTML(text);
 385 }
 386
 387 function escapeQuotesHTML(text) {
 388         var re = new RegExp('&',"g");
 389         text = text.replace(re,"&amp;");
 390         var re = new RegExp('"',"g");
 391         text = text.replace(re,"&quot;");
 392         var re = new RegExp('<',"g");
 393         text = text.replace(re,"&lt;");
 394         var re = new RegExp('>',"g");
 395         text = text.replace(re,"&gt;");
 396         return text;
 397 }
 398
 399 // apply tagOpen/tagClose to selection in textarea,
 400 // use sampleText instead of selection if there is none
 401 // copied and adapted from phpBB
 402 function insertTags(tagOpen, tagClose, sampleText) {
 403         if (document.editform)
 404                 var txtarea = document.editform.wpTextbox1;
 405         else {
 406                 // some alternate form? take the first one we can find
 407                 var areas = document.getElementsByTagName('textarea');
 408                 var txtarea = areas[0];
 409         }
 410
 411         // IE
 412         if (document.selection  && !is_gecko) {
 413                 var theSelection = document.selection.createRange().text;
 414                 if (!theSelection)
 415                         theSelection=sampleText;
 416                 txtarea.focus();
 417                 if (theSelection.charAt(theSelection.length - 1) == " ") { // exclude ending space char, if any
 418                         theSelection = theSelection.substring(0, theSelection.length - 1);
 419                         document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
 420                 } else {
 421                         document.selection.createRange().text = tagOpen + theSelection + tagClose;
 422                 }
 423
 424         // Mozilla
 425         } else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
 426                 var replaced = false;
 427                 var startPos = txtarea.selectionStart;
 428                 var endPos = txtarea.selectionEnd;
 429                 if (endPos-startPos)
 430                         replaced = true;
 431                 var scrollTop = txtarea.scrollTop;
 432                 var myText = (txtarea.value).substring(startPos, endPos);
 433                 if (!myText)
 434                         myText=sampleText;
 435                 if (myText.charAt(myText.length - 1) == " ") { // exclude ending space char, if any
 436                         subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
 437                 } else {
 438                         subst = tagOpen + myText + tagClose;
 439                 }
 440                 txtarea.value = txtarea.value.substring(0, startPos) + subst +
 441                         txtarea.value.substring(endPos, txtarea.value.length);
 442                 txtarea.focus();
 443                 //set new selection
 444                 if (replaced) {
 445                         var cPos = startPos+(tagOpen.length+myText.length+tagClose.length);
 446                         txtarea.selectionStart = cPos;
 447                         txtarea.selectionEnd = cPos;
 448                 } else {
 449                         txtarea.selectionStart = startPos+tagOpen.length;
 450                         txtarea.selectionEnd = startPos+tagOpen.length+myText.length;
 451                 }
 452                 txtarea.scrollTop = scrollTop;
 453
 454         // All other browsers get no toolbar.
 455         // There was previously support for a crippled "help"
 456         // bar, but that caused more problems than it solved.
 457         }
 458         // reposition cursor if possible
 459         if (txtarea.createTextRange)
 460                 txtarea.caretPos = document.selection.createRange().duplicate();
 461 }
 462
 463 function akeytt() {
 464         if (typeof ta == "undefined" || !ta)
 465                 return;
 466         if (is_safari || navigator.userAgent.toLowerCase().indexOf('mac') + 1
 467                 || navigator.userAgent.toLowerCase().indexOf('konqueror') + 1 )
 468                 pref = 'control-';
 469         else if (is_opera)
 470                 pref = 'shift-esc-';
 471         else if (is_ff2)
 472                 pref = 'shift-alt-';
 473         else
 474                 pref = 'alt-';
 475
 476         for (var id in ta) {
 477                 var n = document.getElementById(id);
 478                 if (n) {
 479                         var a = null;
 480                         var ak = '';
 481                         // Are we putting accesskey in it
 482                         if (ta[id][0].length > 0) {
 483                                 // Is this object a object? If not assume it's the next child.
 484
 485                                 if (n.nodeName.toLowerCase() == "a") {
 486                                         a = n;
 487                                 } else {
 488                                         a = n.childNodes[0];
 489                                 }
 490                                 // Don't add an accesskey for the watch tab if the watch
 491                                 // checkbox is also available.
 492                                 if (a && ((id != 'ca-watch' && id != 'ca-unwatch') ||
 493                                 !(window.location.search.match(/[\?&](action=edit|action=submit)/i)))) {
 494                                         a.accessKey = ta[id][0];
 495                                         ak = ' ['+pref+ta[id][0]+']';
 496                                 }
 497                         } else {
 498                                 // We don't care what type the object is when assigning tooltip
 499                                 a = n;
 500                                 ak = '';
 501                         }
 502
 503                         if (a) {
 504                                 a.title = ta[id][1]+ak;
 505                         }
 506                 }
 507         }
 508 }
 509
 510 function setupRightClickEdit() {
 511         if (document.getElementsByTagName) {
 512                 var spans = document.getElementsByTagName('span');
 513                 for (var i = 0; i < spans.length; i++) {
 514                         var el = spans[i];
 515                         if(el.className == 'editsection') {
 516                                 addRightClickEditHandler(el);
 517                         }
 518                 }
 519         }
 520 }
 521
 522 function addRightClickEditHandler(el) {
 523         for (var i = 0; i < el.childNodes.length; i++) {
 524                 var link = el.childNodes[i];
 525                 if (link.nodeType == 1 && link.nodeName.toLowerCase() == 'a') {
 526                         var editHref = link.getAttribute('href');
 527                         // find the enclosing (parent) header
 528                         var prev = el.parentNode;
 529                         if (prev && prev.nodeType == 1 &&
 530                         prev.nodeName.match(/^[Hh][1-6]$/)) {
 531                                 prev.oncontextmenu = function(e) {
 532                                         if (!e) e = window.event;
 533                                         // e is now the event in all browsers
 534                                         if (e.target) var targ = e.target;
 535                                         else if (e.srcElement) var targ = e.srcElement;
 536                                         if (targ.nodeType == 3) // defeat Safari bug
 537                                                 targ = targ.parentNode;
 538                                         // targ is now the target element
 539
 540                                         // We don't want to deprive the noble reader of a context menu
 541                                         // for the section edit link, do we?  (Might want to extend this
 542                                         // to all <a>'s?)
 543                                         if (targ.nodeName.toLowerCase() != 'a'
 544                                         || targ.parentNode.className != 'editsection') {
 545                                                 document.location = editHref;
 546                                                 return false;
 547                                         }
 548                                 }
 549                         }
 550                 }
 551         }
 552 }
 553 /*
 554 function addRightClickEditHandler(el) {
 555         // find the enclosing (parent) header
 556         var par = el.parentNode;
 557         if (par && par.nodeType == 1 && par.nodeName.match(/^[Hh][1-6]$/)) {
 558                 par.oncontextmenu = function(e) {
 559                         if (!e) var e = window.event;
 560                         // e is now the event in all browsers
 561                         if (e.target) targ = e.target;
 562                         else if (e.srcElement) targ = e.srcElement;
 563                         if (targ.nodeType == 3) // defeat Safari bug
 564                                 targ = targ.parentNode;
 565                         // targ is now the target element
 566                         // We don't want to deprive the noble reader of a context menu
 567                         // for the section edit link, do we?  (Might want to extend this
 568                         // to all <a>'s.)links
 569                         if (targ.className != 'editsection') {
 570                                 document.location = editHref;
 571                                 return false;
 572                         }
 573                 }
 574         }
 575 }
 576 */
 577
 578 function setupCheckboxShiftClick() {
 579         if (document.getElementsByTagName) {
 580                 var uls = document.getElementsByTagName('ul');
 581                 var len = uls.length;
 582                 for (var i = 0; i < len; ++i) {
 583                         addCheckboxClickHandlers(uls[i]);
 584                 }
 585         }
 586 }
 587
 588 function addCheckboxClickHandlers(ul, start, finish) {
 589         if (ul.checkboxHandlersTimer) {
 590                 clearInterval(ul.checkboxHandlersTimer);
 591         }
 592         if ( !ul.childNodes ) {
 593                 return;
 594         }
 595         var len = ul.childNodes.length;
 596         if (len < 2) {
 597                 return;
 598         }
 599         start = start || 0;
 600         finish = finish || start + 250;
 601         if ( finish > len ) { finish = len; }
 602         ul.checkboxes = ul.checkboxes || [];
 603         ul.lastCheckbox = ul.lastCheckbox || null;
 604         for (var i = start; i<finish; ++i) {
 605                 var child = ul.childNodes[i];
 606                 if ( child && child.childNodes && child.childNodes[0] ) {
 607                         var cb = child.childNodes[0];
 608                         if ( !cb.nodeName || cb.nodeName.toLowerCase() != 'input' ||
 609                              !cb.type || cb.type.toLowerCase() != 'checkbox' ) {
 610                                 return;
 611                         }
 612                         cb.index = ul.checkboxes.push(cb) - 1;
 613                         cb.container = ul;
 614                         cb.onmouseup = checkboxMouseupHandler;
 615                 }
 616         }
 617         if (finish < len) {
 618           var f=function(){ addCheckboxClickHandlers(ul, finish, finish+250); };
 619           ul.checkboxHandlersTimer=setInterval(f, 200);
 620         }
 621 }
 622
 623 function checkboxMouseupHandler(e) {
 624         if (typeof e == 'undefined') {
 625                 e = window.event;
 626         }
 627         if ( !e.shiftKey || this.container.lastCheckbox === null ) {
 628                 this.container.lastCheckbox = this.index;
 629                 return true;
 630         }
 631         var endState = !this.checked;
 632         if ( is_opera ) { // opera has already toggled the checkbox by this point
 633                 endState = !endState;
 634         }
 635         var start, finish;
 636         if ( this.index < this.container.lastCheckbox ) {
 637                 start = this.index + 1;
 638                 finish = this.container.lastCheckbox;
 639         } else {
 640                 start = this.container.lastCheckbox;
 641                 finish = this.index - 1;
 642         }
 643         for (var i = start; i <= finish; ++i ) {
 644                 this.container.checkboxes[i].checked = endState;
 645         }
 646         this.container.lastCheckbox = this.index;
 647         return true;
 648 }
 649
 650 function toggle_element_activation(ida,idb) {
 651         if (!document.getElementById)
 652                 return;
 653         document.getElementById(ida).disabled=true;
 654         document.getElementById(idb).disabled=false;
 655 }
 656
 657 function toggle_element_check(ida,idb) {
 658         if (!document.getElementById)
 659                 return;
 660         document.getElementById(ida).checked=true;
 661         document.getElementById(idb).checked=false;
 662 }
 663
 664 function fillDestFilename(id) {
 665         if (!document.getElementById)
 666                 return;
 667         var path = document.getElementById(id).value;
 668         // Find trailing part
 669         var slash = path.lastIndexOf('/');
 670         var backslash = path.lastIndexOf('\\');
 671         var fname;
 672         if (slash == -1 && backslash == -1) {
 673                 fname = path;
 674         } else if (slash > backslash) {
 675                 fname = path.substring(slash+1, 10000);
 676         } else {
 677                 fname = path.substring(backslash+1, 10000);
 678         }
 679
 680         // Capitalise first letter and replace spaces by underscores
 681         fname = fname.charAt(0).toUpperCase().concat(fname.substring(1,10000)).replace(/ /g, '_');
 682
 683         // Output result
 684         var destFile = document.getElementById('wpDestFile');
 685         if (destFile)
 686                 destFile.value = fname;
 687 }
 688
 689
 690 function considerChangingExpiryFocus() {
 691         if (!document.getElementById)
 692                 return;
 693         var drop = document.getElementById('wpBlockExpiry');
 694         if (!drop)
 695                 return;
 696         var field = document.getElementById('wpBlockOther');
 697         if (!field)
 698                 return;
 699         var opt = drop.value;
 700         if (opt == 'other')
 701                 field.style.display = '';
 702         else
 703                 field.style.display = 'none';
 704 }
 705
 706 function scrollEditBox() {
 707         var editBoxEl = document.getElementById("wpTextbox1");
 708         var scrollTopEl = document.getElementById("wpScrolltop");
 709         var editFormEl = document.getElementById("editform");
 710
 711         if (editBoxEl && scrollTopEl) {
 712                 if (scrollTopEl.value) editBoxEl.scrollTop = scrollTopEl.value;
 713                 editFormEl.onsubmit = function() {
 714                         document.getElementById("wpScrolltop").value = document.getElementById("wpTextbox1").scrollTop;
 715                 }
 716         }
 717 }
 718
 719 hookEvent("load", scrollEditBox);
 720
 721 function allmessagesfilter() {
 722         text = document.getElementById('allmessagesinput').value;
 723         k = document.getElementById('allmessagestable');
 724         if (!k) { return;}
 725
 726         var items = k.getElementsByTagName('span');
 727
 728         if ( text.length > allmessages_prev.length ) {
 729                 for (var i = items.length-1, j = 0; i >= 0; i--) {
 730                         j = allmessagesforeach(items, i, j);
 731                 }
 732         } else {
 733                 for (var i = 0, j = 0; i < items.length; i++) {
 734                         j = allmessagesforeach(items, i, j);
 735                 }
 736         }
 737         allmessages_prev = text;
 738 }
 739
 740 function allmessagesforeach(items, i, j) {
 741         var hItem = items[i].getAttribute('id');
 742         if (hItem.substring(0,17) == 'sp-allmessages-i-') {
 743                 if (items[i].firstChild && items[i].firstChild.nodeName == '#text' && items[i].firstChild.nodeValue.indexOf(text) != -1) {
 744                         var itemA = document.getElementById( hItem.replace('i', 'r1') );
 745                         var itemB = document.getElementById( hItem.replace('i', 'r2') );
 746                         if ( itemA.style.display != '' ) {
 747                                 var s = "allmessageshider(\"" + hItem.replace('i', 'r1') + "\", \"" + hItem.replace('i', 'r2') + "\", '')";
 748                                 var k = window.setTimeout(s,j++*5);
 749                         }
 750                 } else {
 751                         var itemA = document.getElementById( hItem.replace('i', 'r1') );
 752                         var itemB = document.getElementById( hItem.replace('i', 'r2') );
 753                         if ( itemA.style.display != 'none' ) {
 754                                 var s = "allmessageshider(\"" + hItem.replace('i', 'r1') + "\", \"" + hItem.replace('i', 'r2') + "\", 'none')";
 755                                 var k = window.setTimeout(s,j++*5);
 756                         }
 757                 }
 758         }
 759         return j;
 760 }
 761
 762
 763 function allmessageshider(idA, idB, cstyle) {
 764         var itemA = document.getElementById( idA );
 765         var itemB = document.getElementById( idB );
 766         if (itemA) { itemA.style.display = cstyle; }
 767         if (itemB) { itemB.style.display = cstyle; }
 768 }
 769
 770 function allmessagesmodified() {
 771         allmessages_modified = !allmessages_modified;
 772         k = document.getElementById('allmessagestable');
 773         if (!k) { return;}
 774         var items = k.getElementsByTagName('tr');
 775         for (var i = 0, j = 0; i< items.length; i++) {
 776                 if (!allmessages_modified ) {
 777                         if ( items[i].style.display != '' ) {
 778                                 var s = "allmessageshider(\"" + items[i].getAttribute('id') + "\", null, '')";
 779                                 var k = window.setTimeout(s,j++*5);
 780                         }
 781                 } else if (items[i].getAttribute('class') == 'def' && allmessages_modified) {
 782                         if ( items[i].style.display != 'none' ) {
 783                                 var s = "allmessageshider(\"" + items[i].getAttribute('id') + "\", null, 'none')";
 784                                 var k = window.setTimeout(s,j++*5);
 785                         }
 786                 }
 787         }
 788 }
 789
 790 function allmessagesshow() {
 791         k = document.getElementById('allmessagesfilter');
 792         if (k) { k.style.display = ''; }
 793
 794         allmessages_prev = '';
 795         allmessages_modified = false;
 796 }
 797
 798 hookEvent("load", allmessagesshow);
 799 hookEvent("load", mwSetupToolbar);