skins/common/wikibits.js

   1 // MediaWiki JavaScript support functions
   2
   3 var clientPC = navigator.userAgent.toLowerCase(); // Get client info
   4 var is_gecko = ((clientPC.indexOf('gecko')!=-1) && (clientPC.indexOf('spoofer')==-1)
   5                 && (clientPC.indexOf('khtml') == -1) && (clientPC.indexOf('netscape/7.0')==-1));
   6 var is_safari = ((clientPC.indexOf('applewebkit')!=-1) && (clientPC.indexOf('spoofer')==-1));
   7 var is_khtml = (navigator.vendor == 'KDE' || ( document.childNodes && !document.all && !navigator.taintEnabled ));
   8 // For accesskeys
   9 var is_ff2_win = (clientPC.indexOf('firefox/2')!=-1 || clientPC.indexOf('minefield/3')!=-1) && clientPC.indexOf('windows')!=-1;
  10 var is_ff2_x11 = (clientPC.indexOf('firefox/2')!=-1 || clientPC.indexOf('minefield/3')!=-1) && clientPC.indexOf('x11')!=-1;
  11 if (clientPC.indexOf('opera') != -1) {
  12         var is_opera = true;
  13         var is_opera_preseven = (window.opera && !document.childNodes);
  14         var is_opera_seven = (window.opera && document.childNodes);
  15 }
  16
  17 // Global external objects used by this script.
  18 /*extern ta, stylepath, skin */
  19
  20 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  21 var doneOnloadHook;
  22
  23 if (!window.onloadFuncts) {
  24         var onloadFuncts = [];
  25 }
  26
  27 function addOnloadHook(hookFunct) {
  28         // Allows add-on scripts to add onload functions
  29         onloadFuncts[onloadFuncts.length] = hookFunct;
  30 }
  31
  32 function hookEvent(hookName, hookFunct) {
  33         if (window.addEventListener) {
  34                 window.addEventListener(hookName, hookFunct, false);
  35         } else if (window.attachEvent) {
  36                 window.attachEvent("on" + hookName, hookFunct);
  37         }
  38 }
  39
  40 // document.write special stylesheet links
  41 if (typeof stylepath != 'undefined' && typeof skin != 'undefined') {
  42         if (is_opera_preseven) {
  43                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera6Fixes.css">');
  44         } else if (is_opera_seven) {
  45                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera7Fixes.css">');
  46         } else if (is_khtml) {
  47                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/KHTMLFixes.css">');
  48         }
  49 }
  50 // Un-trap us from framesets
  51 if (window.top != window) {
  52         window.top.location = window.location;
  53 }
  54
  55 // for enhanced RecentChanges
  56 function toggleVisibility(_levelId, _otherId, _linkId) {
  57         var thisLevel = document.getElementById(_levelId);
  58         var otherLevel = document.getElementById(_otherId);
  59         var linkLevel = document.getElementById(_linkId);
  60         if (thisLevel.style.display == 'none') {
  61                 thisLevel.style.display = 'block';
  62                 otherLevel.style.display = 'none';
  63                 linkLevel.style.display = 'inline';
  64         } else {
  65                 thisLevel.style.display = 'none';
  66                 otherLevel.style.display = 'inline';
  67                 linkLevel.style.display = 'none';
  68         }
  69 }
  70
  71 function historyRadios(parent) {
  72         var inputs = parent.getElementsByTagName('input');
  73         var radios = [];
  74         for (var i = 0; i < inputs.length; i++) {
  75                 if (inputs[i].name == "diff" || inputs[i].name == "oldid") {
  76                         radios[radios.length] = inputs[i];
  77                 }
  78         }
  79         return radios;
  80 }
  81
  82 // check selection and tweak visibility/class onclick
  83 function diffcheck() {
  84         var dli = false; // the li where the diff radio is checked
  85         var oli = false; // the li where the oldid radio is checked
  86         var hf = document.getElementById('pagehistory');
  87         if (!hf) {
  88                 return true;
  89         }
  90         var lis = hf.getElementsByTagName('li');
  91         for (var i=0;i<lis.length;i++) {
  92                 var inputs = historyRadios(lis[i]);
  93                 if (inputs[1] && inputs[0]) {
  94                         if (inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
  95                                 if (inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value) {
  96                                         return false;
  97                                 }
  98                                 if (oli) { // it's the second checked radio
  99                                         if (inputs[1].checked) {
 100                                                 oli.className = "selected";
 101                                                 return false;
 102                                         }
 103                                 } else if (inputs[0].checked) {
 104                                         return false;
 105                                 }
 106                                 if (inputs[0].checked) {
 107                                         dli = lis[i];
 108                                 }
 109                                 if (!oli) {
 110                                         inputs[0].style.visibility = 'hidden';
 111                                 }
 112                                 if (dli) {
 113                                         inputs[1].style.visibility = 'hidden';
 114                                 }
 115                                 lis[i].className = "selected";
 116                                 oli = lis[i];
 117                         }  else { // no radio is checked in this row
 118                                 if (!oli) {
 119                                         inputs[0].style.visibility = 'hidden';
 120                                 } else {
 121                                         inputs[0].style.visibility = 'visible';
 122                                 }
 123                                 if (dli) {
 124                                         inputs[1].style.visibility = 'hidden';
 125                                 } else {
 126                                         inputs[1].style.visibility = 'visible';
 127                                 }
 128                                 lis[i].className = "";
 129                         }
 130                 }
 131         }
 132         return true;
 133 }
 134
 135 // page history stuff
 136 // attach event handlers to the input elements on history page
 137 function histrowinit() {
 138         var hf = document.getElementById('pagehistory');
 139         if (!hf) {
 140                 return;
 141         }
 142         var lis = hf.getElementsByTagName('li');
 143         for (var i = 0; i < lis.length; i++) {
 144                 var inputs = historyRadios(lis[i]);
 145                 if (inputs[0] && inputs[1]) {
 146                         inputs[0].onclick = diffcheck;
 147                         inputs[1].onclick = diffcheck;
 148                 }
 149         }
 150         diffcheck();
 151 }
 152
 153 // generate toc from prefs form, fold sections
 154 // XXX: needs testing on IE/Mac and safari
 155 // more comments to follow
 156 function tabbedprefs() {
 157         var prefform = document.getElementById('preferences');
 158         if (!prefform || !document.createElement) {
 159                 return;
 160         }
 161         if (prefform.nodeName.toLowerCase() == 'a') {
 162                 return; // Occasional IE problem
 163         }
 164         prefform.className = prefform.className + 'jsprefs';
 165         var sections = [];
 166         var children = prefform.childNodes;
 167         var seci = 0;
 168         for (var i = 0; i < children.length; i++) {
 169                 if (children[i].nodeName.toLowerCase() == 'fieldset') {
 170                         children[i].id = 'prefsection-' + seci;
 171                         children[i].className = 'prefsection';
 172                         if (is_opera || is_khtml) {
 173                                 children[i].className = 'prefsection operaprefsection';
 174                         }
 175                         var legends = children[i].getElementsByTagName('legend');
 176                         sections[seci] = {};
 177                         legends[0].className = 'mainLegend';
 178                         if (legends[0] && legends[0].firstChild.nodeValue) {
 179                                 sections[seci].text = legends[0].firstChild.nodeValue;
 180                         } else {
 181                                 sections[seci].text = '# ' + seci;
 182                         }
 183                         sections[seci].secid = children[i].id;
 184                         seci++;
 185                         if (sections.length != 1) {
 186                                 children[i].style.display = 'none';
 187                         } else {
 188                                 var selectedid = children[i].id;
 189                         }
 190                 }
 191         }
 192         var toc = document.createElement('ul');
 193         toc.id = 'preftoc';
 194         toc.selectedid = selectedid;
 195         for (i = 0; i < sections.length; i++) {
 196                 var li = document.createElement('li');
 197                 if (i === 0) {
 198                         li.className = 'selected';
 199                 }
 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
 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
 278                 var outerSpan = document.createElement('span');
 279                 outerSpan.className = 'toctoggle';
 280
 281                 var toggleLink = document.createElement('a');
 282                 toggleLink.id = 'togglelink';
 283                 toggleLink.className = 'internal';
 284                 toggleLink.href = 'javascript:toggleToc()';
 285                 toggleLink.appendChild(document.createTextNode(tocHideText));
 286
 287                 outerSpan.appendChild(document.createTextNode('['));
 288                 outerSpan.appendChild(toggleLink);
 289                 outerSpan.appendChild(document.createTextNode(']'));
 290
 291                 linkHolder.appendChild(document.createTextNode(' '));
 292                 linkHolder.appendChild(outerSpan);
 293
 294                 var cookiePos = document.cookie.indexOf("hidetoc=");
 295                 if (cookiePos > -1 && document.cookie.charAt(cookiePos + 8) == 1) {
 296                         toggleToc();
 297                 }
 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
 310 function toggleToc() {
 311         var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
 312         var toggleLink = document.getElementById('togglelink');
 313
 314         if (toc && toggleLink && toc.style.display == 'none') {
 315                 changeText(toggleLink, tocHideText);
 316                 toc.style.display = 'block';
 317                 document.cookie = "hidetoc=0";
 318         } else {
 319                 changeText(toggleLink, tocShowText);
 320                 toc.style.display = 'none';
 321                 document.cookie = "hidetoc=1";
 322         }
 323 }
 324
 325 var mwEditButtons = [];
 326 var mwCustomEditButtons = []; // eg to add in MediaWiki:Common.js
 327
 328 // this function generates the actual toolbar buttons with localized text
 329 // we use it to avoid creating the toolbar where javascript is not enabled
 330 function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText) {
 331         // Don't generate buttons for browsers which don't fully
 332         // support it.
 333         mwEditButtons[mwEditButtons.length] =
 334                 {"imageFile": imageFile,
 335                  "speedTip": speedTip,
 336                  "tagOpen": tagOpen,
 337                  "tagClose": tagClose,
 338                  "sampleText": sampleText};
 339 }
 340
 341 // this function generates the actual toolbar buttons with localized text
 342 // we use it to avoid creating the toolbar where javascript is not enabled
 343 function mwInsertEditButton(parent, item) {
 344         var image = document.createElement("img");
 345         image.width = 23;
 346         image.height = 22;
 347         image.src = item.imageFile;
 348         image.border = 0;
 349         image.alt = item.speedTip;
 350         image.title = item.speedTip;
 351         image.style.cursor = "pointer";
 352         image.onclick = function() {
 353                 insertTags(item.tagOpen, item.tagClose, item.sampleText);
 354                 return false;
 355         };
 356
 357         parent.appendChild(image);
 358         return true;
 359 }
 360
 361 function mwSetupToolbar() {
 362         var toolbar = document.getElementById('toolbar');
 363         if (!toolbar) { return false; }
 364
 365         var textbox = document.getElementById('wpTextbox1');
 366         if (!textbox) { return false; }
 367
 368         // Don't generate buttons for browsers which don't fully
 369         // support it.
 370         if (!document.selection && textbox.selectionStart === null) {
 371                 return false;
 372         }
 373
 374         for (var i in mwEditButtons) {
 375                 mwInsertEditButton(toolbar, mwEditButtons[i]);
 376         }
 377         for (i in mwCustomEditButtons) {
 378                 mwInsertEditButton(toolbar, mwCustomEditButtons[i]);
 379         }
 380         return true;
 381 }
 382
 383 function escapeQuotes(text) {
 384         var re = new RegExp("'","g");
 385         text = text.replace(re,"\\'");
 386         re = new RegExp("\\n","g");
 387         text = text.replace(re,"\\n");
 388         return escapeQuotesHTML(text);
 389 }
 390
 391 function escapeQuotesHTML(text) {
 392         var re = new RegExp('&',"g");
 393         text = text.replace(re,"&amp;");
 394         re = new RegExp('"',"g");
 395         text = text.replace(re,"&quot;");
 396         re = new RegExp('<',"g");
 397         text = text.replace(re,"&lt;");
 398         re = new RegExp('>',"g");
 399         text = text.replace(re,"&gt;");
 400         return text;
 401 }
 402
 403 // apply tagOpen/tagClose to selection in textarea,
 404 // use sampleText instead of selection if there is none
 405 // copied and adapted from phpBB
 406 function insertTags(tagOpen, tagClose, sampleText) {
 407         var txtarea;
 408         if (document.editform) {
 409                 txtarea = document.editform.wpTextbox1;
 410         } else {
 411                 // some alternate form? take the first one we can find
 412                 var areas = document.getElementsByTagName('textarea');
 413                 txtarea = areas[0];
 414         }
 415
 416         // IE
 417         if (document.selection  && !is_gecko) {
 418                 var theSelection = document.selection.createRange().text;
 419                 if (!theSelection) {
 420                         theSelection=sampleText;
 421                 }
 422                 txtarea.focus();
 423                 if (theSelection.charAt(theSelection.length - 1) == " ") { // exclude ending space char, if any
 424                         theSelection = theSelection.substring(0, theSelection.length - 1);
 425                         document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
 426                 } else {
 427                         document.selection.createRange().text = tagOpen + theSelection + tagClose;
 428                 }
 429
 430         // Mozilla
 431         } else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
 432                 var replaced = false;
 433                 var startPos = txtarea.selectionStart;
 434                 var endPos = txtarea.selectionEnd;
 435                 if (endPos-startPos) {
 436                         replaced = true;
 437                 }
 438                 var scrollTop = txtarea.scrollTop;
 439                 var myText = (txtarea.value).substring(startPos, endPos);
 440                 if (!myText) {
 441                         myText=sampleText;
 442                 }
 443                 var subst;
 444                 if (myText.charAt(myText.length - 1) == " ") { // exclude ending space char, if any
 445                         subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
 446                 } else {
 447                         subst = tagOpen + myText + tagClose;
 448                 }
 449                 txtarea.value = txtarea.value.substring(0, startPos) + subst +
 450                         txtarea.value.substring(endPos, txtarea.value.length);
 451                 txtarea.focus();
 452                 //set new selection
 453                 if (replaced) {
 454                         var cPos = startPos+(tagOpen.length+myText.length+tagClose.length);
 455                         txtarea.selectionStart = cPos;
 456                         txtarea.selectionEnd = cPos;
 457                 } else {
 458                         txtarea.selectionStart = startPos+tagOpen.length;
 459                         txtarea.selectionEnd = startPos+tagOpen.length+myText.length;
 460                 }
 461                 txtarea.scrollTop = scrollTop;
 462
 463         // All other browsers get no toolbar.
 464         // There was previously support for a crippled "help"
 465         // bar, but that caused more problems than it solved.
 466         }
 467         // reposition cursor if possible
 468         if (txtarea.createTextRange) {
 469                 txtarea.caretPos = document.selection.createRange().duplicate();
 470         }
 471 }
 472
 473 function akeytt() {
 474         if (typeof ta == "undefined" || !ta) {
 475                 return;
 476         }
 477
 478         var pref;
 479         if (is_safari || navigator.userAgent.toLowerCase().indexOf('mac') + 1
 480                 || navigator.userAgent.toLowerCase().indexOf('konqueror') + 1 ) {
 481                 pref = 'control-';
 482         } else if (is_opera) {
 483                 pref = 'shift-esc-';
 484         } else if (is_ff2_x11) {
 485                 pref = 'ctrl-shift-';
 486         } else if (is_ff2_win) {
 487                 pref = 'alt-shift-';
 488         } else {
 489                 pref = 'alt-';
 490         }
 491
 492         for (var id in ta) {
 493                 var n = document.getElementById(id);
 494                 if (n) {
 495                         var a = null;
 496                         var ak = '';
 497                         // Are we putting accesskey in it
 498                         if (ta[id][0].length > 0) {
 499                                 // Is this object a object? If not assume it's the next child.
 500
 501                                 if (n.nodeName.toLowerCase() == "a") {
 502                                         a = n;
 503                                 } else {
 504                                         a = n.childNodes[0];
 505                                 }
 506                                 // Don't add an accesskey for the watch tab if the watch
 507                                 // checkbox is also available.
 508                                 if (a && ((id != 'ca-watch' && id != 'ca-unwatch') ||
 509                                 !(window.location.search.match(/[\?&](action=edit|action=submit)/i)))) {
 510                                         a.accessKey = ta[id][0];
 511                                         ak = ' ['+pref+ta[id][0]+']';
 512                                 }
 513                         } else {
 514                                 // We don't care what type the object is when assigning tooltip
 515                                 a = n;
 516                                 ak = '';
 517                         }
 518
 519                         if (a) {
 520                                 a.title = ta[id][1]+ak;
 521                         }
 522                 }
 523         }
 524 }
 525
 526 function setupRightClickEdit() {
 527         if (document.getElementsByTagName) {
 528                 var spans = document.getElementsByTagName('span');
 529                 for (var i = 0; i < spans.length; i++) {
 530                         var el = spans[i];
 531                         if(el.className == 'editsection') {
 532                                 addRightClickEditHandler(el);
 533                         }
 534                 }
 535         }
 536 }
 537
 538 function addRightClickEditHandler(el) {
 539         for (var i = 0; i < el.childNodes.length; i++) {
 540                 var link = el.childNodes[i];
 541                 if (link.nodeType == 1 && link.nodeName.toLowerCase() == 'a') {
 542                         var editHref = link.getAttribute('href');
 543                         // find the enclosing (parent) header
 544                         var prev = el.parentNode;
 545                         if (prev && prev.nodeType == 1 &&
 546                         prev.nodeName.match(/^[Hh][1-6]$/)) {
 547                                 prev.oncontextmenu = function(e) {
 548                                         if (!e) { e = window.event; }
 549                                         // e is now the event in all browsers
 550                                         var targ;
 551                                         if (e.target) { targ = e.target; }
 552                                         else if (e.srcElement) { targ = e.srcElement; }
 553                                         if (targ.nodeType == 3) { // defeat Safari bug
 554                                                 targ = targ.parentNode;
 555                                         }
 556                                         // targ is now the target element
 557
 558                                         // We don't want to deprive the noble reader of a context menu
 559                                         // for the section edit link, do we?  (Might want to extend this
 560                                         // to all <a>'s?)
 561                                         if (targ.nodeName.toLowerCase() != 'a'
 562                                         || targ.parentNode.className != 'editsection') {
 563                                                 document.location = editHref;
 564                                                 return false;
 565                                         }
 566                                         return true;
 567                                 };
 568                         }
 569                 }
 570         }
 571 }
 572
 573 function setupCheckboxShiftClick() {
 574         if (document.getElementsByTagName) {
 575                 var uls = document.getElementsByTagName('ul');
 576                 var len = uls.length;
 577                 for (var i = 0; i < len; ++i) {
 578                         addCheckboxClickHandlers(uls[i]);
 579                 }
 580         }
 581 }
 582
 583 function addCheckboxClickHandlers(ul, start, finish) {
 584         if (ul.checkboxHandlersTimer) {
 585                 clearInterval(ul.checkboxHandlersTimer);
 586         }
 587         if ( !ul.childNodes ) {
 588                 return;
 589         }
 590         var len = ul.childNodes.length;
 591         if (len < 2) {
 592                 return;
 593         }
 594         start = start || 0;
 595         finish = finish || start + 250;
 596         if ( finish > len ) { finish = len; }
 597         ul.checkboxes = ul.checkboxes || [];
 598         ul.lastCheckbox = ul.lastCheckbox || null;
 599         for (var i = start; i<finish; ++i) {
 600                 var child = ul.childNodes[i];
 601                 if ( child && child.childNodes && child.childNodes[0] ) {
 602                         var cb = child.childNodes[0];
 603                         if ( !cb.nodeName || cb.nodeName.toLowerCase() != 'input' ||
 604                              !cb.type || cb.type.toLowerCase() != 'checkbox' ) {
 605                                 return;
 606                         }
 607                         cb.index = ul.checkboxes.push(cb) - 1;
 608                         cb.container = ul;
 609                         cb.onmouseup = checkboxMouseupHandler;
 610                 }
 611         }
 612         if (finish < len) {
 613           var f=function(){ addCheckboxClickHandlers(ul, finish, finish+250); };
 614           ul.checkboxHandlersTimer=setInterval(f, 200);
 615         }
 616 }
 617
 618 function checkboxMouseupHandler(e) {
 619         if (typeof e == 'undefined') {
 620                 e = window.event;
 621         }
 622         if ( !e.shiftKey || this.container.lastCheckbox === null ) {
 623                 this.container.lastCheckbox = this.index;
 624                 return true;
 625         }
 626         var endState = !this.checked;
 627         if ( is_opera ) { // opera has already toggled the checkbox by this point
 628                 endState = !endState;
 629         }
 630         var start, finish;
 631         if ( this.index < this.container.lastCheckbox ) {
 632                 start = this.index + 1;
 633                 finish = this.container.lastCheckbox;
 634         } else {
 635                 start = this.container.lastCheckbox;
 636                 finish = this.index - 1;
 637         }
 638         for (var i = start; i <= finish; ++i ) {
 639                 this.container.checkboxes[i].checked = endState;
 640         }
 641         this.container.lastCheckbox = this.index;
 642         return true;
 643 }
 644
 645 function toggle_element_activation(ida,idb) {
 646         if (!document.getElementById) {
 647                 return;
 648         }
 649         document.getElementById(ida).disabled=true;
 650         document.getElementById(idb).disabled=false;
 651 }
 652
 653 function toggle_element_check(ida,idb) {
 654         if (!document.getElementById) {
 655                 return;
 656         }
 657         document.getElementById(ida).checked=true;
 658         document.getElementById(idb).checked=false;
 659 }
 660
 661 function fillDestFilename(id) {
 662         if (!document.getElementById) {
 663                 return;
 664         }
 665         var path = document.getElementById(id).value;
 666         // Find trailing part
 667         var slash = path.lastIndexOf('/');
 668         var backslash = path.lastIndexOf('\\');
 669         var fname;
 670         if (slash == -1 && backslash == -1) {
 671                 fname = path;
 672         } else if (slash > backslash) {
 673                 fname = path.substring(slash+1, 10000);
 674         } else {
 675                 fname = path.substring(backslash+1, 10000);
 676         }
 677
 678         // Capitalise first letter and replace spaces by underscores
 679         fname = fname.charAt(0).toUpperCase().concat(fname.substring(1,10000)).replace(/ /g, '_');
 680
 681         // Output result
 682         var destFile = document.getElementById('wpDestFile');
 683         if (destFile) {
 684                 destFile.value = fname;
 685         }
 686 }
 687
 688
 689 function considerChangingExpiryFocus() {
 690         if (!document.getElementById) {
 691                 return;
 692         }
 693         var drop = document.getElementById('wpBlockExpiry');
 694         if (!drop) {
 695                 return;
 696         }
 697         var field = document.getElementById('wpBlockOther');
 698         if (!field) {
 699                 return;
 700         }
 701         var opt = drop.value;
 702         if (opt == 'other') {
 703                 field.style.display = '';
 704         } else {
 705                 field.style.display = 'none';
 706         }
 707 }
 708
 709 function scrollEditBox() {
 710         var editBoxEl = document.getElementById("wpTextbox1");
 711         var scrollTopEl = document.getElementById("wpScrolltop");
 712         var editFormEl = document.getElementById("editform");
 713
 714         if (editBoxEl && scrollTopEl) {
 715                 if (scrollTopEl.value) { editBoxEl.scrollTop = scrollTopEl.value; }
 716                 editFormEl.onsubmit = function() {
 717                         document.getElementById("wpScrolltop").value = document.getElementById("wpTextbox1").scrollTop;
 718                 };
 719         }
 720 }
 721
 722 hookEvent("load", scrollEditBox);
 723
 724 function allmessagesfilter() {
 725         var text = document.getElementById('allmessagesinput').value;
 726         var k = document.getElementById('allmessagestable');
 727         if (!k) { return; }
 728
 729         var items = k.getElementsByTagName('span');
 730
 731         var i, j;
 732         if ( text.length > allmessages_prev.length ) {
 733                 for (i = items.length-1, j = 0; i >= 0; i--) {
 734                         j = allmessagesforeach(items, i, j, text);
 735                 }
 736         } else {
 737                 for (i = 0, j = 0; i < items.length; i++) {
 738                         j = allmessagesforeach(items, i, j, text);
 739                 }
 740         }
 741         allmessages_prev = text;
 742 }
 743
 744 function allmessagesforeach(items, i, j, text) {
 745         var hItem = items[i].getAttribute('id');
 746         if (hItem.substring(0,17) == 'sp-allmessages-i-') {
 747                 var itemA, itemB, s, k;
 748                 if (items[i].firstChild && items[i].firstChild.nodeName == '#text' && items[i].firstChild.nodeValue.indexOf(text) != -1) {
 749                         itemA = document.getElementById( hItem.replace('i', 'r1') );
 750                         itemB = document.getElementById( hItem.replace('i', 'r2') );
 751                         if ( itemA.style.display !== '' ) {
 752                                 s = "allmessageshider(\"" + hItem.replace('i', 'r1') + "\", \"" + hItem.replace('i', 'r2') + "\", '')";
 753                                 k = window.setTimeout(s,j++*5);
 754                         }
 755                 } else {
 756                         itemA = document.getElementById( hItem.replace('i', 'r1') );
 757                         itemB = document.getElementById( hItem.replace('i', 'r2') );
 758                         if ( itemA.style.display != 'none' ) {
 759                                 s = "allmessageshider(\"" + hItem.replace('i', 'r1') + "\", \"" + hItem.replace('i', 'r2') + "\", 'none')";
 760                                 k = window.setTimeout(s,j++*5);
 761                         }
 762                 }
 763         }
 764         return j;
 765 }
 766
 767
 768 function allmessageshider(idA, idB, cstyle) {
 769         var itemA = document.getElementById( idA );
 770         var itemB = document.getElementById( idB );
 771         if (itemA) { itemA.style.display = cstyle; }
 772         if (itemB) { itemB.style.display = cstyle; }
 773 }
 774
 775 function allmessagesmodified() {
 776         allmessages_modified = !allmessages_modified;
 777         var k = document.getElementById('allmessagestable');
 778         if (!k) { return; }
 779         var items = k.getElementsByTagName('tr');
 780         for (var i = 0, j = 0; i< items.length; i++) {
 781                 var s;
 782                 if (!allmessages_modified ) {
 783                         if ( items[i].style.display !== '' ) {
 784                                 s = "allmessageshider(\"" + items[i].getAttribute('id') + "\", null, '')";
 785                                 k = window.setTimeout(s,j++*5);
 786                         }
 787                 } else if (items[i].getAttribute('class') == 'def' && allmessages_modified) {
 788                         if ( items[i].style.display != 'none' ) {
 789                                 s = "allmessageshider(\"" + items[i].getAttribute('id') + "\", null, 'none')";
 790                                 k = window.setTimeout(s,j++*5);
 791                         }
 792                 }
 793         }
 794 }
 795
 796 function allmessagesshow() {
 797         var k = document.getElementById('allmessagesfilter');
 798         if (k) { k.style.display = ''; }
 799
 800         allmessages_prev = '';
 801         allmessages_modified = false;
 802 }
 803
 804 /*
 805         Written by Jonathan Snook, http://www.snook.ca/jonathan
 806         Add-ons by Robert Nyman, http://www.robertnyman.com
 807         Author says "The credit comment is all it takes, no license. Go crazy with it!:-)"
 808         From http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/
 809 */
 810 function getElementsByClassName(oElm, strTagName, oClassNames){
 811         var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
 812         var arrReturnElements = new Array();
 813         var arrRegExpClassNames = new Array();
 814         if(typeof oClassNames == "object"){
 815                 for(var i=0; i<oClassNames.length; i++){
 816                         arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames[i].replace(/\-/g, "\\-") + "(\\s|$)"));
 817                 }
 818         }
 819         else{
 820                 arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames.replace(/\-/g, "\\-") + "(\\s|$)"));
 821         }
 822         var oElement;
 823         var bMatchesAll;
 824         for(var j=0; j<arrElements.length; j++){
 825                 oElement = arrElements[j];
 826                 bMatchesAll = true;
 827                 for(var k=0; k<arrRegExpClassNames.length; k++){
 828                         if(!arrRegExpClassNames[k].test(oElement.className)){
 829                                 bMatchesAll = false;
 830                                 break;
 831                         }
 832                 }
 833                 if(bMatchesAll){
 834                         arrReturnElements.push(oElement);
 835                 }
 836         }
 837         return (arrReturnElements)
 838 }
 839
 840 function sortableTables() {
 841         if (getElementsByClassName(document, "table", "sortable").length != 0) {
 842                 document.write('<script type="text/javascript" src="'+stylepath+'/common/sorttable.js"></script>');
 843         }
 844 }
 845
 846
 847 function runOnloadHook() {
 848         // don't run anything below this for non-dom browsers
 849         if (doneOnloadHook || !(document.getElementById && document.getElementsByTagName)) {
 850                 return;
 851         }
 852
 853         histrowinit();
 854         unhidetzbutton();
 855         tabbedprefs();
 856         akeytt();
 857         scrollEditBox();
 858         setupCheckboxShiftClick();
 859         sortableTables();
 860
 861         // Run any added-on functions
 862         for (var i = 0; i < onloadFuncts.length; i++) {
 863                 onloadFuncts[i]();
 864         }
 865
 866         doneOnloadHook = true;
 867 }
 868
 869 //note: all skins should call runOnloadHook() at the end of html output,
 870 //      so the below should be redundant. It's there just in case.
 871 hookEvent("load", runOnloadHook);
 872
 873 hookEvent("load", allmessagesshow);
 874 hookEvent("load", mwSetupToolbar);