skins/common/wikibits.js

   1 // MediaWiki JavaScript support functions
   2
   3 var clientPC = navigator.userAgent.toLowerCase(); // Get client info
   4 var is_gecko = ((clientPC.indexOf('gecko')!=-1) && (clientPC.indexOf('spoofer')==-1)
   5                 && (clientPC.indexOf('khtml') == -1) && (clientPC.indexOf('netscape/7.0')==-1));
   6 var is_safari = ((clientPC.indexOf('applewebkit')!=-1) && (clientPC.indexOf('spoofer')==-1));
   7 var is_khtml = (navigator.vendor == 'KDE' || ( document.childNodes && !document.all && !navigator.taintEnabled ));
   8 // For accesskeys
   9 var is_ff2_win = (clientPC.indexOf('firefox/2')!=-1 || clientPC.indexOf('minefield/3')!=-1) && clientPC.indexOf('windows')!=-1;
  10 var is_ff2_x11 = (clientPC.indexOf('firefox/2')!=-1 || clientPC.indexOf('minefield/3')!=-1) && clientPC.indexOf('x11')!=-1;
  11 if (clientPC.indexOf('opera') != -1) {
  12         var is_opera = true;
  13         var is_opera_preseven = (window.opera && !document.childNodes);
  14         var is_opera_seven = (window.opera && document.childNodes);
  15 }
  16
  17 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  18
  19 var doneOnloadHook;
  20
  21 if (!window.onloadFuncts) {
  22         var onloadFuncts = [];
  23 }
  24
  25 function addOnloadHook(hookFunct) {
  26         // Allows add-on scripts to add onload functions
  27         onloadFuncts[onloadFuncts.length] = hookFunct;
  28 }
  29
  30 function hookEvent(hookName, hookFunct) {
  31         if (window.addEventListener) {
  32                 window.addEventListener(hookName, hookFunct, false);
  33         } else if (window.attachEvent) {
  34                 window.attachEvent("on" + hookName, hookFunct);
  35         }
  36 }
  37
  38 // document.write special stylesheet links
  39 if (typeof stylepath != 'undefined' && typeof skin != 'undefined') {
  40         if (is_opera_preseven) {
  41                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera6Fixes.css">');
  42         } else if (is_opera_seven) {
  43                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera7Fixes.css">');
  44         } else if (is_khtml) {
  45                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/KHTMLFixes.css">');
  46         }
  47 }
  48 // Un-trap us from framesets
  49 if (window.top != window) {
  50         window.top.location = window.location;
  51 }
  52
  53 // for enhanced RecentChanges
  54 function toggleVisibility(_levelId, _otherId, _linkId) {
  55         var thisLevel = document.getElementById(_levelId);
  56         var otherLevel = document.getElementById(_otherId);
  57         var linkLevel = document.getElementById(_linkId);
  58         if (thisLevel.style.display == 'none') {
  59                 thisLevel.style.display = 'block';
  60                 otherLevel.style.display = 'none';
  61                 linkLevel.style.display = 'inline';
  62         } else {
  63                 thisLevel.style.display = 'none';
  64                 otherLevel.style.display = 'inline';
  65                 linkLevel.style.display = 'none';
  66         }
  67 }
  68
  69 function historyRadios(parent) {
  70         var inputs = parent.getElementsByTagName('input');
  71         var radios = [];
  72         for (var i = 0; i < inputs.length; i++) {
  73                 if (inputs[i].name == "diff" || inputs[i].name == "oldid") {
  74                         radios[radios.length] = inputs[i];
  75                 }
  76         }
  77         return radios;
  78 }
  79
  80 // check selection and tweak visibility/class onclick
  81 function diffcheck() {
  82         var dli = false; // the li where the diff radio is checked
  83         var oli = false; // the li where the oldid radio is checked
  84         var hf = document.getElementById('pagehistory');
  85         if (!hf) {
  86                 return true;
  87         }
  88         var lis = hf.getElementsByTagName('li');
  89         for (var i=0;i<lis.length;i++) {
  90                 var inputs = historyRadios(lis[i]);
  91                 if (inputs[1] && inputs[0]) {
  92                         if (inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
  93                                 if (inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value) {
  94                                         return false;
  95                                 }
  96                                 if (oli) { // it's the second checked radio
  97                                         if (inputs[1].checked) {
  98                                                 oli.className = "selected";
  99                                                 return false;
 100                                         }
 101                                 } else if (inputs[0].checked) {
 102                                         return false;
 103                                 }
 104                                 if (inputs[0].checked) {
 105                                         dli = lis[i];
 106                                 }
 107                                 if (!oli) {
 108                                         inputs[0].style.visibility = 'hidden';
 109                                 }
 110                                 if (dli) {
 111                                         inputs[1].style.visibility = 'hidden';
 112                                 }
 113                                 lis[i].className = "selected";
 114                                 oli = lis[i];
 115                         }  else { // no radio is checked in this row
 116                                 if (!oli) {
 117                                         inputs[0].style.visibility = 'hidden';
 118                                 } else {
 119                                         inputs[0].style.visibility = 'visible';
 120                                 }
 121                                 if (dli) {
 122                                         inputs[1].style.visibility = 'hidden';
 123                                 } else {
 124                                         inputs[1].style.visibility = 'visible';
 125                                 }
 126                                 lis[i].className = "";
 127                         }
 128                 }
 129         }
 130         return true;
 131 }
 132
 133 // page history stuff
 134 // attach event handlers to the input elements on history page
 135 function histrowinit() {
 136         var hf = document.getElementById('pagehistory');
 137         if (!hf) {
 138                 return;
 139         }
 140         var lis = hf.getElementsByTagName('li');
 141         for (var i = 0; i < lis.length; i++) {
 142                 var inputs = historyRadios(lis[i]);
 143                 if (inputs[0] && inputs[1]) {
 144                         inputs[0].onclick = diffcheck;
 145                         inputs[1].onclick = diffcheck;
 146                 }
 147         }
 148         diffcheck();
 149 }
 150
 151 // generate toc from prefs form, fold sections
 152 // XXX: needs testing on IE/Mac and safari
 153 // more comments to follow
 154 function tabbedprefs() {
 155         var prefform = document.getElementById('preferences');
 156         if (!prefform || !document.createElement) {
 157                 return;
 158         }
 159         if (prefform.nodeName.toLowerCase() == 'a') {
 160                 return; // Occasional IE problem
 161         }
 162         prefform.className = prefform.className + 'jsprefs';
 163         var sections = [];
 164         var children = prefform.childNodes;
 165         var seci = 0;
 166         for (var i = 0; i < children.length; i++) {
 167                 if (children[i].nodeName.toLowerCase() == 'fieldset') {
 168                         children[i].id = 'prefsection-' + seci;
 169                         children[i].className = 'prefsection';
 170                         if (is_opera || is_khtml) {
 171                                 children[i].className = 'prefsection operaprefsection';
 172                         }
 173                         var legends = children[i].getElementsByTagName('legend');
 174                         sections[seci] = {};
 175                         legends[0].className = 'mainLegend';
 176                         if (legends[0] && legends[0].firstChild.nodeValue) {
 177                                 sections[seci].text = legends[0].firstChild.nodeValue;
 178                         } else {
 179                                 sections[seci].text = '# ' + seci;
 180                         }
 181                         sections[seci].secid = children[i].id;
 182                         seci++;
 183                         if (sections.length != 1) {
 184                                 children[i].style.display = 'none';
 185                         } else {
 186                                 var selectedid = children[i].id;
 187                         }
 188                 }
 189         }
 190         var toc = document.createElement('ul');
 191         toc.id = 'preftoc';
 192         toc.selectedid = selectedid;
 193         for (i = 0; i < sections.length; i++) {
 194                 var li = document.createElement('li');
 195                 if (i === 0) {
 196                         li.className = 'selected';
 197                 }
 198                 var a = document.createElement('a');
 199                 a.href = '#' + sections[i].secid;
 200                 a.onmousedown = a.onclick = uncoversection;
 201                 a.appendChild(document.createTextNode(sections[i].text));
 202                 a.secid = sections[i].secid;
 203                 li.appendChild(a);
 204                 toc.appendChild(li);
 205         }
 206         prefform.parentNode.insertBefore(toc, prefform.parentNode.childNodes[0]);
 207         document.getElementById('prefsubmit').id = 'prefcontrol';
 208 }
 209
 210 function uncoversection() {
 211         var oldsecid = this.parentNode.parentNode.selectedid;
 212         var newsec = document.getElementById(this.secid);
 213         if (oldsecid != this.secid) {
 214                 var ul = document.getElementById('preftoc');
 215                 document.getElementById(oldsecid).style.display = 'none';
 216                 newsec.style.display = 'block';
 217                 ul.selectedid = this.secid;
 218                 var lis = ul.getElementsByTagName('li');
 219                 for (var i = 0; i< lis.length; i++) {
 220                         lis[i].className = '';
 221                 }
 222                 this.parentNode.className = 'selected';
 223         }
 224         return false;
 225 }
 226
 227 // Timezone stuff
 228 // tz in format [+-]HHMM
 229 function checkTimezone(tz, msg) {
 230         var localclock = new Date();
 231         // returns negative offset from GMT in minutes
 232         var tzRaw = localclock.getTimezoneOffset();
 233         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 234         var tzMin = Math.abs(tzRaw) % 60;
 235         var tzString = ((tzRaw >= 0) ? "-" : "+") + ((tzHour < 10) ? "0" : "") + tzHour + ((tzMin < 10) ? "0" : "") + tzMin;
 236         if (tz != tzString) {
 237                 var junk = msg.split('$1');
 238                 document.write(junk[0] + "UTC" + tzString + junk[1]);
 239         }
 240 }
 241
 242 function unhidetzbutton() {
 243         var tzb = document.getElementById('guesstimezonebutton');
 244         if (tzb) {
 245                 tzb.style.display = 'inline';
 246         }
 247 }
 248
 249 // in [-]HH:MM format...
 250 // won't yet work with non-even tzs
 251 function fetchTimezone() {
 252         // FIXME: work around Safari bug
 253         var localclock = new Date();
 254         // returns negative offset from GMT in minutes
 255         var tzRaw = localclock.getTimezoneOffset();
 256         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 257         var tzMin = Math.abs(tzRaw) % 60;
 258         var tzString = ((tzRaw >= 0) ? "-" : "") + ((tzHour < 10) ? "0" : "") + tzHour +
 259                 ":" + ((tzMin < 10) ? "0" : "") + tzMin;
 260         return tzString;
 261 }
 262
 263 function guessTimezone(box) {
 264         document.getElementsByName("wpHourDiff")[0].value = fetchTimezone();
 265 }
 266
 267 function showTocToggle() {
 268         if (document.createTextNode) {
 269                 // Uses DOM calls to avoid document.write + XHTML issues
 270
 271                 var linkHolder = document.getElementById('toctitle');
 272                 if (!linkHolder) {
 273                         return;
 274                 }
 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
 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
 308 function toggleToc() {
 309         var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
 310         var toggleLink = document.getElementById('togglelink');
 311
 312         if (toc && toggleLink && toc.style.display == 'none') {
 313                 changeText(toggleLink, tocHideText);
 314                 toc.style.display = 'block';
 315                 document.cookie = "hidetoc=0";
 316         } else {
 317                 changeText(toggleLink, tocShowText);
 318                 toc.style.display = 'none';
 319                 document.cookie = "hidetoc=1";
 320         }
 321 }
 322
 323 var mwEditButtons = [];
 324 var mwCustomEditButtons = []; // eg to add in MediaWiki:Common.js
 325
 326 // this function generates the actual toolbar buttons with localized text
 327 // we use it to avoid creating the toolbar where javascript is not enabled
 328 function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText) {
 329         // Don't generate buttons for browsers which don't fully
 330         // support it.
 331         mwEditButtons[mwEditButtons.length] =
 332                 {"imageFile": imageFile,
 333                  "speedTip": speedTip,
 334                  "tagOpen": tagOpen,
 335                  "tagClose": tagClose,
 336                  "sampleText": sampleText};
 337 }
 338
 339 // this function generates the actual toolbar buttons with localized text
 340 // we use it to avoid creating the toolbar where javascript is not enabled
 341 function mwInsertEditButton(parent, item) {
 342         var image = document.createElement("img");
 343         image.width = 23;
 344         image.height = 22;
 345         image.src = item.imageFile;
 346         image.border = 0;
 347         image.alt = item.speedTip;
 348         image.title = item.speedTip;
 349         image.style.cursor = "pointer";
 350         image.onclick = function() {
 351                 insertTags(item.tagOpen, item.tagClose, item.sampleText);
 352                 return false;
 353         };
 354
 355         parent.appendChild(image);
 356         return true;
 357 }
 358
 359 function mwSetupToolbar() {
 360         var toolbar = document.getElementById('toolbar');
 361         if (!toolbar) { return false; }
 362
 363         var textbox = document.getElementById('wpTextbox1');
 364         if (!textbox) { return false; }
 365
 366         // Don't generate buttons for browsers which don't fully
 367         // support it.
 368         if (!document.selection && textbox.selectionStart === null) {
 369                 return false;
 370         }
 371
 372         for (var i in mwEditButtons) {
 373                 mwInsertEditButton(toolbar, mwEditButtons[i]);
 374         }
 375         for (i in mwCustomEditButtons) {
 376                 mwInsertEditButton(toolbar, mwCustomEditButtons[i]);
 377         }
 378         return true;
 379 }
 380
 381 function escapeQuotes(text) {
 382         var re = new RegExp("'","g");
 383         text = text.replace(re,"\\'");
 384         re = new RegExp("\\n","g");
 385         text = text.replace(re,"\\n");
 386         return escapeQuotesHTML(text);
 387 }
 388
 389 function escapeQuotesHTML(text) {
 390         var re = new RegExp('&',"g");
 391         text = text.replace(re,"&amp;");
 392         re = new RegExp('"',"g");
 393         text = text.replace(re,"&quot;");
 394         re = new RegExp('<',"g");
 395         text = text.replace(re,"&lt;");
 396         re = new RegExp('>',"g");
 397         text = text.replace(re,"&gt;");
 398         return text;
 399 }
 400
 401 // apply tagOpen/tagClose to selection in textarea,
 402 // use sampleText instead of selection if there is none
 403 // copied and adapted from phpBB
 404 function insertTags(tagOpen, tagClose, sampleText) {
 405         var txtarea;
 406         if (document.editform) {
 407                 txtarea = document.editform.wpTextbox1;
 408         } else {
 409                 // some alternate form? take the first one we can find
 410                 var areas = document.getElementsByTagName('textarea');
 411                 txtarea = areas[0];
 412         }
 413
 414         // IE
 415         if (document.selection  && !is_gecko) {
 416                 var theSelection = document.selection.createRange().text;
 417                 if (!theSelection) {
 418                         theSelection=sampleText;
 419                 }
 420                 txtarea.focus();
 421                 if (theSelection.charAt(theSelection.length - 1) == " ") { // exclude ending space char, if any
 422                         theSelection = theSelection.substring(0, theSelection.length - 1);
 423                         document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
 424                 } else {
 425                         document.selection.createRange().text = tagOpen + theSelection + tagClose;
 426                 }
 427
 428         // Mozilla
 429         } else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
 430                 var replaced = false;
 431                 var startPos = txtarea.selectionStart;
 432                 var endPos = txtarea.selectionEnd;
 433                 if (endPos-startPos) {
 434                         replaced = true;
 435                 }
 436                 var scrollTop = txtarea.scrollTop;
 437                 var myText = (txtarea.value).substring(startPos, endPos);
 438                 if (!myText) {
 439                         myText=sampleText;
 440                 }
 441                 var subst;
 442                 if (myText.charAt(myText.length - 1) == " ") { // exclude ending space char, if any
 443                         subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
 444                 } else {
 445                         subst = tagOpen + myText + tagClose;
 446                 }
 447                 txtarea.value = txtarea.value.substring(0, startPos) + subst +
 448                         txtarea.value.substring(endPos, txtarea.value.length);
 449                 txtarea.focus();
 450                 //set new selection
 451                 if (replaced) {
 452                         var cPos = startPos+(tagOpen.length+myText.length+tagClose.length);
 453                         txtarea.selectionStart = cPos;
 454                         txtarea.selectionEnd = cPos;
 455                 } else {
 456                         txtarea.selectionStart = startPos+tagOpen.length;
 457                         txtarea.selectionEnd = startPos+tagOpen.length+myText.length;
 458                 }
 459                 txtarea.scrollTop = scrollTop;
 460
 461         // All other browsers get no toolbar.
 462         // There was previously support for a crippled "help"
 463         // bar, but that caused more problems than it solved.
 464         }
 465         // reposition cursor if possible
 466         if (txtarea.createTextRange) {
 467                 txtarea.caretPos = document.selection.createRange().duplicate();
 468         }
 469 }
 470
 471 function akeytt() {
 472         if (typeof ta == "undefined" || !ta) {
 473                 return;
 474         }
 475
 476         var pref;
 477         if (is_safari || navigator.userAgent.toLowerCase().indexOf('mac') + 1
 478                 || navigator.userAgent.toLowerCase().indexOf('konqueror') + 1 ) {
 479                 pref = 'control-';
 480         } else if (is_opera) {
 481                 pref = 'shift-esc-';
 482         } else if (is_ff2_x11) {
 483                 pref = 'ctrl-shift-';
 484         } else if (is_ff2_win) {
 485                 pref = 'alt-shift-';
 486         } else {
 487                 pref = 'alt-';
 488         }
 489
 490         for (var id in ta) {
 491                 var n = document.getElementById(id);
 492                 if (n) {
 493                         var a = null;
 494                         var ak = '';
 495                         // Are we putting accesskey in it
 496                         if (ta[id][0].length > 0) {
 497                                 // Is this object a object? If not assume it's the next child.
 498
 499                                 if (n.nodeName.toLowerCase() == "a") {
 500                                         a = n;
 501                                 } else {
 502                                         a = n.childNodes[0];
 503                                 }
 504                                 // Don't add an accesskey for the watch tab if the watch
 505                                 // checkbox is also available.
 506                                 if (a && ((id != 'ca-watch' && id != 'ca-unwatch') ||
 507                                 !(window.location.search.match(/[\?&](action=edit|action=submit)/i)))) {
 508                                         a.accessKey = ta[id][0];
 509                                         ak = ' ['+pref+ta[id][0]+']';
 510                                 }
 511                         } else {
 512                                 // We don't care what type the object is when assigning tooltip
 513                                 a = n;
 514                                 ak = '';
 515                         }
 516
 517                         if (a) {
 518                                 a.title = ta[id][1]+ak;
 519                         }
 520                 }
 521         }
 522 }
 523
 524 function setupRightClickEdit() {
 525         if (document.getElementsByTagName) {
 526                 var spans = document.getElementsByTagName('span');
 527                 for (var i = 0; i < spans.length; i++) {
 528                         var el = spans[i];
 529                         if(el.className == 'editsection') {
 530                                 addRightClickEditHandler(el);
 531                         }
 532                 }
 533         }
 534 }
 535
 536 function addRightClickEditHandler(el) {
 537         for (var i = 0; i < el.childNodes.length; i++) {
 538                 var link = el.childNodes[i];
 539                 if (link.nodeType == 1 && link.nodeName.toLowerCase() == 'a') {
 540                         var editHref = link.getAttribute('href');
 541                         // find the enclosing (parent) header
 542                         var prev = el.parentNode;
 543                         if (prev && prev.nodeType == 1 &&
 544                         prev.nodeName.match(/^[Hh][1-6]$/)) {
 545                                 prev.oncontextmenu = function(e) {
 546                                         if (!e) { e = window.event; }
 547                                         // e is now the event in all browsers
 548                                         var targ;
 549                                         if (e.target) { targ = e.target; }
 550                                         else if (e.srcElement) { targ = e.srcElement; }
 551                                         if (targ.nodeType == 3) { // defeat Safari bug
 552                                                 targ = targ.parentNode;
 553                                         }
 554                                         // targ is now the target element
 555
 556                                         // We don't want to deprive the noble reader of a context menu
 557                                         // for the section edit link, do we?  (Might want to extend this
 558                                         // to all <a>'s?)
 559                                         if (targ.nodeName.toLowerCase() != 'a'
 560                                         || targ.parentNode.className != 'editsection') {
 561                                                 document.location = editHref;
 562                                                 return false;
 563                                         }
 564                                         return true;
 565                                 };
 566                         }
 567                 }
 568         }
 569 }
 570
 571 function setupCheckboxShiftClick() {
 572         if (document.getElementsByTagName) {
 573                 var uls = document.getElementsByTagName('ul');
 574                 var len = uls.length;
 575                 for (var i = 0; i < len; ++i) {
 576                         addCheckboxClickHandlers(uls[i]);
 577                 }
 578         }
 579 }
 580
 581 function addCheckboxClickHandlers(ul, start, finish) {
 582         if (ul.checkboxHandlersTimer) {
 583                 clearInterval(ul.checkboxHandlersTimer);
 584         }
 585         if ( !ul.childNodes ) {
 586                 return;
 587         }
 588         var len = ul.childNodes.length;
 589         if (len < 2) {
 590                 return;
 591         }
 592         start = start || 0;
 593         finish = finish || start + 250;
 594         if ( finish > len ) { finish = len; }
 595         ul.checkboxes = ul.checkboxes || [];
 596         ul.lastCheckbox = ul.lastCheckbox || null;
 597         for (var i = start; i<finish; ++i) {
 598                 var child = ul.childNodes[i];
 599                 if ( child && child.childNodes && child.childNodes[0] ) {
 600                         var cb = child.childNodes[0];
 601                         if ( !cb.nodeName || cb.nodeName.toLowerCase() != 'input' ||
 602                              !cb.type || cb.type.toLowerCase() != 'checkbox' ) {
 603                                 return;
 604                         }
 605                         cb.index = ul.checkboxes.push(cb) - 1;
 606                         cb.container = ul;
 607                         cb.onmouseup = checkboxMouseupHandler;
 608                 }
 609         }
 610         if (finish < len) {
 611           var f=function(){ addCheckboxClickHandlers(ul, finish, finish+250); };
 612           ul.checkboxHandlersTimer=setInterval(f, 200);
 613         }
 614 }
 615
 616 function checkboxMouseupHandler(e) {
 617         if (typeof e == 'undefined') {
 618                 e = window.event;
 619         }
 620         if ( !e.shiftKey || this.container.lastCheckbox === null ) {
 621                 this.container.lastCheckbox = this.index;
 622                 return true;
 623         }
 624         var endState = !this.checked;
 625         if ( is_opera ) { // opera has already toggled the checkbox by this point
 626                 endState = !endState;
 627         }
 628         var start, finish;
 629         if ( this.index < this.container.lastCheckbox ) {
 630                 start = this.index + 1;
 631                 finish = this.container.lastCheckbox;
 632         } else {
 633                 start = this.container.lastCheckbox;
 634                 finish = this.index - 1;
 635         }
 636         for (var i = start; i <= finish; ++i ) {
 637                 this.container.checkboxes[i].checked = endState;
 638         }
 639         this.container.lastCheckbox = this.index;
 640         return true;
 641 }
 642
 643 function toggle_element_activation(ida,idb) {
 644         if (!document.getElementById) {
 645                 return;
 646         }
 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         }
 655         document.getElementById(ida).checked=true;
 656         document.getElementById(idb).checked=false;
 657 }
 658
 659 function fillDestFilename(id) {
 660         if (!document.getElementById) {
 661                 return;
 662         }
 663         var path = document.getElementById(id).value;
 664         // Find trailing part
 665         var slash = path.lastIndexOf('/');
 666         var backslash = path.lastIndexOf('\\');
 667         var fname;
 668         if (slash == -1 && backslash == -1) {
 669                 fname = path;
 670         } else if (slash > backslash) {
 671                 fname = path.substring(slash+1, 10000);
 672         } else {
 673                 fname = path.substring(backslash+1, 10000);
 674         }
 675
 676         // Capitalise first letter and replace spaces by underscores
 677         fname = fname.charAt(0).toUpperCase().concat(fname.substring(1,10000)).replace(/ /g, '_');
 678
 679         // Output result
 680         var destFile = document.getElementById('wpDestFile');
 681         if (destFile) {
 682                 destFile.value = fname;
 683         }
 684 }
 685
 686
 687 function considerChangingExpiryFocus() {
 688         if (!document.getElementById) {
 689                 return;
 690         }
 691         var drop = document.getElementById('wpBlockExpiry');
 692         if (!drop) {
 693                 return;
 694         }
 695         var field = document.getElementById('wpBlockOther');
 696         if (!field) {
 697                 return;
 698         }
 699         var opt = drop.value;
 700         if (opt == 'other') {
 701                 field.style.display = '';
 702         } else {
 703                 field.style.display = 'none';
 704         }
 705 }
 706
 707 function scrollEditBox() {
 708         var editBoxEl = document.getElementById("wpTextbox1");
 709         var scrollTopEl = document.getElementById("wpScrolltop");
 710         var editFormEl = document.getElementById("editform");
 711
 712         if (editBoxEl && scrollTopEl) {
 713                 if (scrollTopEl.value) { editBoxEl.scrollTop = scrollTopEl.value; }
 714                 editFormEl.onsubmit = function() {
 715                         document.getElementById("wpScrolltop").value = document.getElementById("wpTextbox1").scrollTop;
 716                 };
 717         }
 718 }
 719
 720 hookEvent("load", scrollEditBox);
 721
 722 function allmessagesfilter() {
 723         var text = document.getElementById('allmessagesinput').value;
 724         var k = document.getElementById('allmessagestable');
 725         if (!k) { return; }
 726
 727         var items = k.getElementsByTagName('span');
 728
 729         var i, j;
 730         if ( text.length > allmessages_prev.length ) {
 731                 for (i = items.length-1, j = 0; i >= 0; i--) {
 732                         j = allmessagesforeach(items, i, j, text);
 733                 }
 734         } else {
 735                 for (i = 0, j = 0; i < items.length; i++) {
 736                         j = allmessagesforeach(items, i, j, text);
 737                 }
 738         }
 739         allmessages_prev = text;
 740 }
 741
 742 function allmessagesforeach(items, i, j, text) {
 743         var hItem = items[i].getAttribute('id');
 744         if (hItem.substring(0,17) == 'sp-allmessages-i-') {
 745                 var itemA, itemB, s, k;
 746                 if (items[i].firstChild && items[i].firstChild.nodeName == '#text' && items[i].firstChild.nodeValue.indexOf(text) != -1) {
 747                         itemA = document.getElementById( hItem.replace('i', 'r1') );
 748                         itemB = document.getElementById( hItem.replace('i', 'r2') );
 749                         if ( itemA.style.display !== '' ) {
 750                                 s = "allmessageshider(\"" + hItem.replace('i', 'r1') + "\", \"" + hItem.replace('i', 'r2') + "\", '')";
 751                                 k = window.setTimeout(s,j++*5);
 752                         }
 753                 } else {
 754                         itemA = document.getElementById( hItem.replace('i', 'r1') );
 755                         itemB = document.getElementById( hItem.replace('i', 'r2') );
 756                         if ( itemA.style.display != 'none' ) {
 757                                 s = "allmessageshider(\"" + hItem.replace('i', 'r1') + "\", \"" + hItem.replace('i', 'r2') + "\", 'none')";
 758                                 k = window.setTimeout(s,j++*5);
 759                         }
 760                 }
 761         }
 762         return j;
 763 }
 764
 765
 766 function allmessageshider(idA, idB, cstyle) {
 767         var itemA = document.getElementById( idA );
 768         var itemB = document.getElementById( idB );
 769         if (itemA) { itemA.style.display = cstyle; }
 770         if (itemB) { itemB.style.display = cstyle; }
 771 }
 772
 773 function allmessagesmodified() {
 774         allmessages_modified = !allmessages_modified;
 775         var k = document.getElementById('allmessagestable');
 776         if (!k) { return; }
 777         var items = k.getElementsByTagName('tr');
 778         for (var i = 0, j = 0; i< items.length; i++) {
 779                 var s;
 780                 if (!allmessages_modified ) {
 781                         if ( items[i].style.display !== '' ) {
 782                                 s = "allmessageshider(\"" + items[i].getAttribute('id') + "\", null, '')";
 783                                 k = window.setTimeout(s,j++*5);
 784                         }
 785                 } else if (items[i].getAttribute('class') == 'def' && allmessages_modified) {
 786                         if ( items[i].style.display != 'none' ) {
 787                                 s = "allmessageshider(\"" + items[i].getAttribute('id') + "\", null, 'none')";
 788                                 k = window.setTimeout(s,j++*5);
 789                         }
 790                 }
 791         }
 792 }
 793
 794 function allmessagesshow() {
 795         var k = document.getElementById('allmessagesfilter');
 796         if (k) { k.style.display = ''; }
 797
 798         allmessages_prev = '';
 799         allmessages_modified = false;
 800 }
 801
 802 function runOnloadHook() {
 803         // don't run anything below this for non-dom browsers
 804         if (doneOnloadHook || !(document.getElementById && document.getElementsByTagName)) {
 805                 return;
 806         }
 807
 808         histrowinit();
 809         unhidetzbutton();
 810         tabbedprefs();
 811         akeytt();
 812         scrollEditBox();
 813         setupCheckboxShiftClick();
 814
 815         // Run any added-on functions
 816         for (var i = 0; i < onloadFuncts.length; i++) {
 817                 onloadFuncts[i]();
 818         }
 819
 820         doneOnloadHook = true;
 821 }
 822
 823 //note: all skins should call runOnloadHook() at the end of html output,
 824 //      so the below should be redundant. It's there just in case.
 825 hookEvent("load", runOnloadHook);
 826
 827 hookEvent("load", allmessagesshow);
 828 hookEvent("load", mwSetupToolbar);