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 if (clientPC.indexOf('opera') != -1) {
   9         var is_opera = true;
  10         var is_opera_preseven = (window.opera && !document.childNodes);
  11         var is_opera_seven = (window.opera && document.childNodes);
  12 }
  13
  14 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  15
  16 var doneOnloadHook;
  17
  18 if (!window.onloadFuncts)
  19         var onloadFuncts = [];
  20
  21 function addOnloadHook(hookFunct) {
  22         // Allows add-on scripts to add onload functions
  23         onloadFuncts[onloadFuncts.length] = hookFunct;
  24 }
  25
  26 function runOnloadHook() {
  27         // don't run anything below this for non-dom browsers
  28         if (doneOnloadHook || !(document.getElementById && document.getElementsByTagName))
  29                 return;
  30
  31         histrowinit();
  32         unhidetzbutton();
  33         tabbedprefs();
  34         akeytt();
  35         scrollEditBox();
  36         setupCheckboxShiftClick();
  37
  38         // Run any added-on functions
  39         for (var i = 0; i < onloadFuncts.length; i++)
  40                 onloadFuncts[i]();
  41
  42         doneOnloadHook = true;
  43 }
  44
  45 function hookEvent(hookName, hookFunct) {
  46         if (window.addEventListener)
  47                 addEventListener(hookName, hookFunct, false);
  48         else if (window.attachEvent)
  49                 attachEvent("on" + hookName, hookFunct);
  50 }
  51
  52 //note: all skins shoud call runOnloadHook() at the end of html output,
  53 //      so the below should be redundant. It's there just in case.
  54 hookEvent("load", runOnloadHook);
  55
  56 // document.write special stylesheet links
  57 if (typeof stylepath != 'undefined' && typeof skin != 'undefined') {
  58         if (is_opera_preseven) {
  59                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera6Fixes.css">');
  60         } else if (is_opera_seven) {
  61                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera7Fixes.css">');
  62         } else if (is_khtml) {
  63                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/KHTMLFixes.css">');
  64         }
  65 }
  66 // Un-trap us from framesets
  67 if (window.top != window)
  68         window.top.location = window.location;
  69
  70 // for enhanced RecentChanges
  71 function toggleVisibility(_levelId, _otherId, _linkId) {
  72         var thisLevel = document.getElementById(_levelId);
  73         var otherLevel = document.getElementById(_otherId);
  74         var linkLevel = document.getElementById(_linkId);
  75         if (thisLevel.style.display == 'none') {
  76                 thisLevel.style.display = 'block';
  77                 otherLevel.style.display = 'none';
  78                 linkLevel.style.display = 'inline';
  79         } else {
  80                 thisLevel.style.display = 'none';
  81                 otherLevel.style.display = 'inline';
  82                 linkLevel.style.display = 'none';
  83         }
  84 }
  85
  86 // page history stuff
  87 // attach event handlers to the input elements on history page
  88 function histrowinit() {
  89         var hf = document.getElementById('pagehistory');
  90         if (!hf)
  91                 return;
  92         var lis = hf.getElementsByTagName('li');
  93         for (var i = 0; i < lis.length; i++) {
  94                 var inputs = historyRadios(lis[i]);
  95                 if (inputs[0] && inputs[1]) {
  96                         inputs[0].onclick = diffcheck;
  97                         inputs[1].onclick = diffcheck;
  98                 }
  99         }
 100         diffcheck();
 101 }
 102
 103 function historyRadios(parent) {
 104         var inputs = parent.getElementsByTagName('input');
 105         var radios = [];
 106         for (var i = 0; i < inputs.length; i++) {
 107                 if (inputs[i].name == "diff" || inputs[i].name == "oldid")
 108                         radios[radios.length] = inputs[i];
 109         }
 110         return radios;
 111 }
 112
 113 // check selection and tweak visibility/class onclick
 114 function diffcheck() {
 115         var dli = false; // the li where the diff radio is checked
 116         var oli = false; // the li where the oldid radio is checked
 117         var hf = document.getElementById('pagehistory');
 118         if (!hf)
 119                 return true;
 120         var lis = hf.getElementsByTagName('li');
 121         for (i=0;i<lis.length;i++) {
 122                 var inputs = historyRadios(lis[i]);
 123                 if (inputs[1] && inputs[0]) {
 124                         if (inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
 125                                 if (inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value)
 126                                         return false;
 127                                 if (oli) { // it's the second checked radio
 128                                         if (inputs[1].checked) {
 129                                                 oli.className = "selected";
 130                                                 return false;
 131                                         }
 132                                 } else if (inputs[0].checked) {
 133                                         return false;
 134                                 }
 135                                 if (inputs[0].checked)
 136                                         dli = lis[i];
 137                                 if (!oli)
 138                                         inputs[0].style.visibility = 'hidden';
 139                                 if (dli)
 140                                         inputs[1].style.visibility = 'hidden';
 141                                 lis[i].className = "selected";
 142                                 oli = lis[i];
 143                         }  else { // no radio is checked in this row
 144                                 if (!oli)
 145                                         inputs[0].style.visibility = 'hidden';
 146                                 else
 147                                         inputs[0].style.visibility = 'visible';
 148                                 if (dli)
 149                                         inputs[1].style.visibility = 'hidden';
 150                                 else
 151                                         inputs[1].style.visibility = 'visible';
 152                                 lis[i].className = "";
 153                         }
 154                 }
 155         }
 156         return true;
 157 }
 158
 159 // generate toc from prefs form, fold sections
 160 // XXX: needs testing on IE/Mac and safari
 161 // more comments to follow
 162 function tabbedprefs() {
 163         var prefform = document.getElementById('preferences');
 164         if (!prefform || !document.createElement)
 165                 return;
 166         if (prefform.nodeName.toLowerCase() == 'a')
 167                 return; // Occasional IE problem
 168         prefform.className = prefform.className + 'jsprefs';
 169         var sections = new Array();
 170         var children = prefform.childNodes;
 171         var seci = 0;
 172         for (var i = 0; i < children.length; i++) {
 173                 if (children[i].nodeName.toLowerCase() == 'fieldset') {
 174                         children[i].id = 'prefsection-' + seci;
 175                         children[i].className = 'prefsection';
 176                         if (is_opera || is_khtml)
 177                                 children[i].className = 'prefsection operaprefsection';
 178                         var legends = children[i].getElementsByTagName('legend');
 179                         sections[seci] = new Object();
 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                         sections[seci].secid = children[i].id;
 186                         seci++;
 187                         if (sections.length != 1)
 188                                 children[i].style.display = 'none';
 189                         else
 190                                 var selectedid = children[i].id;
 191                 }
 192         }
 193         var toc = document.createElement('ul');
 194         toc.id = 'preftoc';
 195         toc.selectedid = selectedid;
 196         for (i = 0; i < sections.length; i++) {
 197                 var li = document.createElement('li');
 198                 if (i == 0)
 199                         li.className = 'selected';
 200                 var a = document.createElement('a');
 201                 a.href = '#' + sections[i].secid;
 202                 a.onmousedown = a.onclick = uncoversection;
 203                 a.appendChild(document.createTextNode(sections[i].text));
 204                 a.secid = sections[i].secid;
 205                 li.appendChild(a);
 206                 toc.appendChild(li);
 207         }
 208         prefform.parentNode.insertBefore(toc, prefform.parentNode.childNodes[0]);
 209         document.getElementById('prefsubmit').id = 'prefcontrol';
 210 }
 211
 212 function uncoversection() {
 213         var oldsecid = this.parentNode.parentNode.selectedid;
 214         var newsec = document.getElementById(this.secid);
 215         if (oldsecid != this.secid) {
 216                 var ul = document.getElementById('preftoc');
 217                 document.getElementById(oldsecid).style.display = 'none';
 218                 newsec.style.display = 'block';
 219                 ul.selectedid = this.secid;
 220                 var lis = ul.getElementsByTagName('li');
 221                 for (var i = 0; i< lis.length; i++) {
 222                         lis[i].className = '';
 223                 }
 224                 this.parentNode.className = 'selected';
 225         }
 226         return false;
 227 }
 228
 229 // Timezone stuff
 230 // tz in format [+-]HHMM
 231 function checkTimezone(tz, msg) {
 232         var localclock = new Date();
 233         // returns negative offset from GMT in minutes
 234         var tzRaw = localclock.getTimezoneOffset();
 235         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 236         var tzMin = Math.abs(tzRaw) % 60;
 237         var tzString = ((tzRaw >= 0) ? "-" : "+") + ((tzHour < 10) ? "0" : "") + tzHour + ((tzMin < 10) ? "0" : "") + tzMin;
 238         if (tz != tzString) {
 239                 var junk = msg.split('$1');
 240                 document.write(junk[0] + "UTC" + tzString + junk[1]);
 241         }
 242 }
 243
 244 function unhidetzbutton() {
 245         var tzb = document.getElementById('guesstimezonebutton');
 246         if (tzb)
 247                 tzb.style.display = 'inline';
 248 }
 249
 250 // in [-]HH:MM format...
 251 // won't yet work with non-even tzs
 252 function fetchTimezone() {
 253         // FIXME: work around Safari bug
 254         var localclock = new Date();
 255         // returns negative offset from GMT in minutes
 256         var tzRaw = localclock.getTimezoneOffset();
 257         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 258         var tzMin = Math.abs(tzRaw) % 60;
 259         var tzString = ((tzRaw >= 0) ? "-" : "") + ((tzHour < 10) ? "0" : "") + tzHour +
 260                 ":" + ((tzMin < 10) ? "0" : "") + tzMin;
 261         return tzString;
 262 }
 263
 264 function guessTimezone(box) {
 265         document.getElementsByName("wpHourDiff")[0].value = fetchTimezone();
 266 }
 267
 268 function showTocToggle() {
 269         if (document.createTextNode) {
 270                 // Uses DOM calls to avoid document.write + XHTML issues
 271
 272                 var linkHolder = document.getElementById('toctitle')
 273                 if (!linkHolder)
 274                         return;
 275
 276                 var outerSpan = document.createElement('span');
 277                 outerSpan.className = 'toctoggle';
 278
 279                 var toggleLink = document.createElement('a');
 280                 toggleLink.id = 'togglelink';
 281                 toggleLink.className = 'internal';
 282                 toggleLink.href = 'javascript:toggleToc()';
 283                 toggleLink.appendChild(document.createTextNode(tocHideText));
 284
 285                 outerSpan.appendChild(document.createTextNode('['));
 286                 outerSpan.appendChild(toggleLink);
 287                 outerSpan.appendChild(document.createTextNode(']'));
 288
 289                 linkHolder.appendChild(document.createTextNode(' '));
 290                 linkHolder.appendChild(outerSpan);
 291
 292                 var cookiePos = document.cookie.indexOf("hidetoc=");
 293                 if (cookiePos > -1 && document.cookie.charAt(cookiePos + 8) == 1)
 294                         toggleToc();
 295         }
 296 }
 297
 298 function changeText(el, newText) {
 299         // Safari work around
 300         if (el.innerText)
 301                 el.innerText = newText;
 302         else if (el.firstChild && el.firstChild.nodeValue)
 303                 el.firstChild.nodeValue = newText;
 304 }
 305
 306 function toggleToc() {
 307         var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
 308         var toggleLink = document.getElementById('togglelink')
 309
 310         if (toc && toggleLink && toc.style.display == 'none') {
 311                 changeText(toggleLink, tocHideText);
 312                 toc.style.display = 'block';
 313                 document.cookie = "hidetoc=0";
 314         } else {
 315                 changeText(toggleLink, tocShowText);
 316                 toc.style.display = 'none';
 317                 document.cookie = "hidetoc=1";
 318         }
 319 }
 320
 321 var mwEditButtons = [];
 322 var mwCustomEditButtons = []; // eg to add in MediaWiki:Common.js
 323
 324 // this function generates the actual toolbar buttons with localized text
 325 // we use it to avoid creating the toolbar where javascript is not enabled
 326 function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText) {
 327         // Don't generate buttons for browsers which don't fully
 328         // support it.
 329         mwEditButtons[mwEditButtons.length] =
 330                 {"imageFile": imageFile,
 331                  "speedTip": speedTip,
 332                  "tagOpen": tagOpen,
 333                  "tagClose": tagClose,
 334                  "sampleText": sampleText};
 335 }
 336
 337 // this function generates the actual toolbar buttons with localized text
 338 // we use it to avoid creating the toolbar where javascript is not enabled
 339 function mwInsertEditButton(parent, item) {
 340         var image = document.createElement("img");
 341         image.width = 23;
 342         image.height = 22;
 343         image.src = item.imageFile;
 344         image.border = 0;
 345         image.alt = item.speedTip;
 346         image.title = item.speedTip;
 347         image.style.cursor = "pointer";
 348         image.onclick = function() {
 349                 insertTags(item.tagOpen, item.tagClose, item.sampleText);
 350                 return false;
 351         }
 352
 353         parent.appendChild(image);
 354         return true;
 355 }
 356
 357 function mwSetupToolbar() {
 358         var toolbar = document.getElementById('toolbar');
 359         if (!toolbar) return false;
 360
 361         var textbox = document.getElementById('wpTextbox1');
 362         if (!textbox) return false;
 363
 364         // Don't generate buttons for browsers which don't fully
 365         // support it.
 366         if (!document.selection && textbox.selectionStart == null)
 367                 return false;
 368
 369         for (var i in mwEditButtons) {
 370                 mwInsertEditButton(toolbar, mwEditButtons[i]);
 371         }
 372         for (var i in mwCustomEditButtons) {
 373                 mwInsertEditButton(toolbar, mwCustomEditButtons[i]);
 374         }
 375         return true;
 376 }
 377
 378 function escapeQuotes(text) {
 379         var re = new RegExp("'","g");
 380         text = text.replace(re,"\\'");
 381         re = new RegExp("\\n","g");
 382         text = text.replace(re,"\\n");
 383         return escapeQuotesHTML(text);
 384 }
 385
 386 function escapeQuotesHTML(text) {
 387         var re = new RegExp('&',"g");
 388         text = text.replace(re,"&amp;");
 389         var re = new RegExp('"',"g");
 390         text = text.replace(re,"&quot;");
 391         var re = new RegExp('<',"g");
 392         text = text.replace(re,"&lt;");
 393         var re = new RegExp('>',"g");
 394         text = text.replace(re,"&gt;");
 395         return text;
 396 }
 397
 398 // apply tagOpen/tagClose to selection in textarea,
 399 // use sampleText instead of selection if there is none
 400 // copied and adapted from phpBB
 401 function insertTags(tagOpen, tagClose, sampleText) {
 402         if (document.editform)
 403                 var txtarea = document.editform.wpTextbox1;
 404         else {
 405                 // some alternate form? take the first one we can find
 406                 var areas = document.getElementsByTagName('textarea');
 407                 var txtarea = areas[0];
 408         }
 409
 410         // IE
 411         if (document.selection  && !is_gecko) {
 412                 var theSelection = document.selection.createRange().text;
 413                 if (!theSelection)
 414                         theSelection=sampleText;
 415                 txtarea.focus();
 416                 if (theSelection.charAt(theSelection.length - 1) == " ") { // exclude ending space char, if any
 417                         theSelection = theSelection.substring(0, theSelection.length - 1);
 418                         document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
 419                 } else {
 420                         document.selection.createRange().text = tagOpen + theSelection + tagClose;
 421                 }
 422
 423         // Mozilla
 424         } else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
 425                 var replaced = false;
 426                 var startPos = txtarea.selectionStart;
 427                 var endPos = txtarea.selectionEnd;
 428                 if (endPos-startPos)
 429                         replaced = true;
 430                 var scrollTop = txtarea.scrollTop;
 431                 var myText = (txtarea.value).substring(startPos, endPos);
 432                 if (!myText)
 433                         myText=sampleText;
 434                 if (myText.charAt(myText.length - 1) == " ") { // exclude ending space char, if any
 435                         subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
 436                 } else {
 437                         subst = tagOpen + myText + tagClose;
 438                 }
 439                 txtarea.value = txtarea.value.substring(0, startPos) + subst +
 440                         txtarea.value.substring(endPos, txtarea.value.length);
 441                 txtarea.focus();
 442                 //set new selection
 443                 if (replaced) {
 444                         var cPos = startPos+(tagOpen.length+myText.length+tagClose.length);
 445                         txtarea.selectionStart = cPos;
 446                         txtarea.selectionEnd = cPos;
 447                 } else {
 448                         txtarea.selectionStart = startPos+tagOpen.length;
 449                         txtarea.selectionEnd = startPos+tagOpen.length+myText.length;
 450                 }
 451                 txtarea.scrollTop = scrollTop;
 452
 453         // All other browsers get no toolbar.
 454         // There was previously support for a crippled "help"
 455         // bar, but that caused more problems than it solved.
 456         }
 457         // reposition cursor if possible
 458         if (txtarea.createTextRange)
 459                 txtarea.caretPos = document.selection.createRange().duplicate();
 460 }
 461
 462 function akeytt() {
 463         if (typeof ta == "undefined" || !ta)
 464                 return;
 465         var pref = 'alt-';
 466         if (is_safari || navigator.userAgent.toLowerCase().indexOf('mac') + 1
 467                 || navigator.userAgent.toLowerCase().indexOf('konqueror') + 1 )
 468                 pref = 'control-';
 469         if (is_opera)
 470                 pref = 'shift-esc-';
 471
 472         for (var id in ta) {
 473                 var n = document.getElementById(id);
 474                 if (n) {
 475                         var a = null;
 476                         var ak = '';
 477                         // Are we putting accesskey in it
 478                         if (ta[id][0].length > 0) {
 479                                 // Is this object a object? If not assume it's the next child.
 480
 481                                 if (n.nodeName.toLowerCase() == "a") {
 482                                         a = n;
 483                                 } else {
 484                                         a = n.childNodes[0];
 485                                 }
 486
 487                                 if (a) {
 488                                         a.accessKey = ta[id][0];
 489                                         ak = ' ['+pref+ta[id][0]+']';
 490                                 }
 491                         } else {
 492                                 // We don't care what type the object is when assigning tooltip
 493                                 a = n;
 494                                 ak = '';
 495                         }
 496
 497                         if (a) {
 498                                 a.title = ta[id][1]+ak;
 499                         }
 500                 }
 501         }
 502 }
 503
 504 function setupRightClickEdit() {
 505         if (document.getElementsByTagName) {
 506                 var spans = document.getElementsByTagName('span');
 507                 for (var i = 0; i < spans.length; i++) {
 508                         var el = spans[i];
 509                         if(el.className == 'editsection') {
 510                                 addRightClickEditHandler(el);
 511                         }
 512                 }
 513         }
 514 }
 515
 516 function addRightClickEditHandler(el) {
 517         for (var i = 0; i < el.childNodes.length; i++) {
 518                 var link = el.childNodes[i];
 519                 if (link.nodeType == 1 && link.nodeName.toLowerCase() == 'a') {
 520                         var editHref = link.getAttribute('href');
 521                         // find the enclosing (parent) header
 522                         var prev = el.parentNode;
 523                         if (prev && prev.nodeType == 1 &&
 524                         prev.nodeName.match(/^[Hh][1-6]$/)) {
 525                                 prev.oncontextmenu = function(e) {
 526                                         if (!e) e = window.event;
 527                                         // e is now the event in all browsers
 528                                         if (e.target) var targ = e.target;
 529                                         else if (e.srcElement) var targ = e.srcElement;
 530                                         if (targ.nodeType == 3) // defeat Safari bug
 531                                                 targ = targ.parentNode;
 532                                         // targ is now the target element
 533
 534                                         // We don't want to deprive the noble reader of a context menu
 535                                         // for the section edit link, do we?  (Might want to extend this
 536                                         // to all <a>'s?)
 537                                         if (targ.nodeName.toLowerCase() != 'a'
 538                                         || targ.parentNode.className != 'editsection') {
 539                                                 document.location = editHref;
 540                                                 return false;
 541                                         }
 542                                 }
 543                         }
 544                 }
 545         }
 546 }
 547 /*
 548 function addRightClickEditHandler(el) {
 549         // find the enclosing (parent) header
 550         var par = el.parentNode;
 551         if (par && par.nodeType == 1 && par.nodeName.match(/^[Hh][1-6]$/)) {
 552                 par.oncontextmenu = function(e) {
 553                         if (!e) var e = window.event;
 554                         // e is now the event in all browsers
 555                         if (e.target) targ = e.target;
 556                         else if (e.srcElement) targ = e.srcElement;
 557                         if (targ.nodeType == 3) // defeat Safari bug
 558                                 targ = targ.parentNode;
 559                         // targ is now the target element
 560                         // We don't want to deprive the noble reader of a context menu
 561                         // for the section edit link, do we?  (Might want to extend this
 562                         // to all <a>'s.)links
 563                         if (targ.className != 'editsection') {
 564                                 document.location = editHref;
 565                                 return false;
 566                         }
 567                 }
 568         }
 569 }
 570 */
 571
 572 function setupCheckboxShiftClick() {
 573         if (document.getElementsByTagName) {
 574                 var uls = document.getElementsByTagName('ul');
 575                 var len = uls.length;
 576                 for (var i = 0; i < len; ++i) {
 577                         addCheckboxClickHandlers(uls[i]);
 578                 }
 579         }
 580 }
 581
 582 function addCheckboxClickHandlers(ul, start, finish) {
 583         if (ul.checkboxHandlersTimer) {
 584                 clearInterval(ul.checkboxHandlersTimer);
 585         }
 586         if ( !ul.childNodes ) {
 587                 return;
 588         }
 589         var len = ul.childNodes.length;
 590         if (len < 2) {
 591                 return;
 592         }
 593         start = start || 0;
 594         finish = finish || start + 250;
 595         if ( finish > len ) { finish = len; }
 596         ul.checkboxes = ul.checkboxes || [];
 597         ul.lastCheckbox = ul.lastCheckbox || null;
 598         for (var i = start; i<finish; ++i) {
 599                 var child = ul.childNodes[i];
 600                 if ( child && child.childNodes && child.childNodes[0] ) {
 601                         var cb = child.childNodes[0];
 602                         if ( !cb.nodeName || cb.nodeName.toLowerCase() != 'input' ||
 603                              !cb.type || cb.type.toLowerCase() != 'checkbox' ) {
 604                                 return;
 605                         }
 606                         cb.index = ul.checkboxes.push(cb) - 1;
 607                         cb.container = ul;
 608                         cb.onmouseup = checkboxMouseupHandler;
 609                 }
 610         }
 611         if (finish < len) {
 612           var f=function(){ addCheckboxClickHandlers(ul, finish, finish+250); };
 613           ul.checkboxHandlersTimer=setInterval(f, 200);
 614         }
 615 }
 616
 617 function checkboxMouseupHandler(e) {
 618         if (typeof e == 'undefined') {
 619                 e = window.event;
 620         }
 621         if ( !e.shiftKey || this.container.lastCheckbox === null ) {
 622                 this.container.lastCheckbox = this.index;
 623                 return true;
 624         }
 625         var endState = !this.checked;
 626         if ( is_opera ) { // opera has already toggled the checkbox by this point
 627                 endState = !endState;
 628         }
 629         var start, finish;
 630         if ( this.index < this.container.lastCheckbox ) {
 631                 start = this.index + 1;
 632                 finish = this.container.lastCheckbox;
 633         } else {
 634                 start = this.container.lastCheckbox;
 635                 finish = this.index - 1;
 636         }
 637         for (var i = start; i <= finish; ++i ) {
 638                 this.container.checkboxes[i].checked = endState;
 639         }
 640         this.container.lastCheckbox = this.index;
 641         return true;
 642 }
 643
 644 function toggle_element_activation(ida,idb) {
 645         if (!document.getElementById)
 646                 return;
 647         document.getElementById(ida).disabled=true;
 648         document.getElementById(idb).disabled=false;
 649 }
 650
 651 function toggle_element_check(ida,idb) {
 652         if (!document.getElementById)
 653                 return;
 654         document.getElementById(ida).checked=true;
 655         document.getElementById(idb).checked=false;
 656 }
 657
 658 function fillDestFilename(id) {
 659         if (!document.getElementById)
 660                 return;
 661         var path = document.getElementById(id).value;
 662         // Find trailing part
 663         var slash = path.lastIndexOf('/');
 664         var backslash = path.lastIndexOf('\\');
 665         var fname;
 666         if (slash == -1 && backslash == -1) {
 667                 fname = path;
 668         } else if (slash > backslash) {
 669                 fname = path.substring(slash+1, 10000);
 670         } else {
 671                 fname = path.substring(backslash+1, 10000);
 672         }
 673
 674         // Capitalise first letter and replace spaces by underscores
 675         fname = fname.charAt(0).toUpperCase().concat(fname.substring(1,10000)).replace(/ /g, '_');
 676
 677         // Output result
 678         var destFile = document.getElementById('wpDestFile');
 679         if (destFile)
 680                 destFile.value = fname;
 681 }
 682
 683
 684 function considerChangingExpiryFocus() {
 685         if (!document.getElementById)
 686                 return;
 687         var drop = document.getElementById('wpBlockExpiry');
 688         if (!drop)
 689                 return;
 690         var field = document.getElementById('wpBlockOther');
 691         if (!field)
 692                 return;
 693         var opt = drop.value;
 694         if (opt == 'other')
 695                 field.style.display = '';
 696         else
 697                 field.style.display = 'none';
 698 }
 699
 700 function scrollEditBox() {
 701         var editBoxEl = document.getElementById("wpTextbox1");
 702         var scrollTopEl = document.getElementById("wpScrolltop");
 703         var editFormEl = document.getElementById("editform");
 704
 705         if (editBoxEl && scrollTopEl) {
 706                 if (scrollTopEl.value) editBoxEl.scrollTop = scrollTopEl.value;
 707                 editFormEl.onsubmit = function() {
 708                         document.getElementById("wpScrolltop").value = document.getElementById("wpTextbox1").scrollTop;
 709                 }
 710         }
 711 }
 712
 713 hookEvent("load", scrollEditBox);
 714
 715 function allmessagesfilter() {
 716         text = document.getElementById('allmessagesinput').value;
 717         k = document.getElementById('allmessagestable');
 718         if (!k) { return;}
 719
 720         var items = k.getElementsByTagName('span');
 721
 722         if ( text.length > allmessages_prev.length ) {
 723                 for (var i = items.length-1, j = 0; i >= 0; i--) {
 724                         j = allmessagesforeach(items, i, j);
 725                 }
 726         } else {
 727                 for (var i = 0, j = 0; i < items.length; i++) {
 728                         j = allmessagesforeach(items, i, j);
 729                 }
 730         }
 731         allmessages_prev = text;
 732 }
 733
 734 function allmessagesforeach(items, i, j) {
 735         var hItem = items[i].getAttribute('id');
 736         if (hItem.substring(0,17) == 'sp-allmessages-i-') {
 737                 if (items[i].firstChild && items[i].firstChild.nodeName == '#text' && items[i].firstChild.nodeValue.indexOf(text) != -1) {
 738                         var itemA = document.getElementById( hItem.replace('i', 'r1') );
 739                         var itemB = document.getElementById( hItem.replace('i', 'r2') );
 740                         if ( itemA.style.display != '' ) {
 741                                 var s = "allmessageshider(\"" + hItem.replace('i', 'r1') + "\", \"" + hItem.replace('i', 'r2') + "\", '')";
 742                                 var k = window.setTimeout(s,j++*5);
 743                         }
 744                 } else {
 745                         var itemA = document.getElementById( hItem.replace('i', 'r1') );
 746                         var itemB = document.getElementById( hItem.replace('i', 'r2') );
 747                         if ( itemA.style.display != 'none' ) {
 748                                 var s = "allmessageshider(\"" + hItem.replace('i', 'r1') + "\", \"" + hItem.replace('i', 'r2') + "\", 'none')";
 749                                 var k = window.setTimeout(s,j++*5);
 750                         }
 751                 }
 752         }
 753         return j;
 754 }
 755
 756
 757 function allmessageshider(idA, idB, cstyle) {
 758         var itemA = document.getElementById( idA );
 759         var itemB = document.getElementById( idB );
 760         if (itemA) { itemA.style.display = cstyle; }
 761         if (itemB) { itemB.style.display = cstyle; }
 762 }
 763
 764 function allmessagesmodified() {
 765         allmessages_modified = !allmessages_modified;
 766         k = document.getElementById('allmessagestable');
 767         if (!k) { return;}
 768         var items = k.getElementsByTagName('tr');
 769         for (var i = 0, j = 0; i< items.length; i++) {
 770                 if (!allmessages_modified ) {
 771                         if ( items[i].style.display != '' ) {
 772                                 var s = "allmessageshider(\"" + items[i].getAttribute('id') + "\", null, '')";
 773                                 var k = window.setTimeout(s,j++*5);
 774                         }
 775                 } else if (items[i].getAttribute('class') == 'def' && allmessages_modified) {
 776                         if ( items[i].style.display != 'none' ) {
 777                                 var s = "allmessageshider(\"" + items[i].getAttribute('id') + "\", null, 'none')";
 778                                 var k = window.setTimeout(s,j++*5);
 779                         }
 780                 }
 781         }
 782 }
 783
 784 function allmessagesshow() {
 785         k = document.getElementById('allmessagesfilter');
 786         if (k) { k.style.display = ''; }
 787
 788         allmessages_prev = '';
 789         allmessages_modified = false;
 790 }
 791
 792 hookEvent("load", allmessagesshow);
 793 hookEvent("load", mwSetupToolbar);