skins/common/wikibits.js

   1 // MediaWiki JavaScript support functions
   2
   3 var clientPC = navigator.userAgent.toLowerCase(); // Get client info
   4 var is_gecko = /gecko/.test( clientPC ) &&
   5         !/khtml|spoofer|netscape\/7\.0/.test(clientPC);
   6 var webkit_match = clientPC.match(/applewebkit\/(\d+)/);
   7 if (webkit_match) {
   8         var is_safari = clientPC.indexOf('applewebkit') != -1 &&
   9                 clientPC.indexOf('spoofer') == -1;
  10         var is_safari_win = is_safari && clientPC.indexOf('windows') != -1;
  11         var webkit_version = parseInt(webkit_match[1]);
  12 }
  13 // For accesskeys; note that FF3+ is included here!
  14 var is_ff2 = /firefox\/[2-9]|minefield\/3/.test( clientPC );
  15 var ff2_bugs = /firefox\/2/.test( clientPC );
  16 // These aren't used here, but some custom scripts rely on them
  17 var is_ff2_win = is_ff2 && clientPC.indexOf('windows') != -1;
  18 var is_ff2_x11 = is_ff2 && clientPC.indexOf('x11') != -1;
  19 if (clientPC.indexOf('opera') != -1) {
  20         var is_opera = true;
  21         var is_opera_preseven = window.opera && !document.childNodes;
  22         var is_opera_seven = window.opera && document.childNodes;
  23         var is_opera_95 = /opera\/(9\.[5-9]|[1-9][0-9])/.test( clientPC );
  24         var opera6_bugs = is_opera_preseven;
  25         var opera7_bugs = is_opera_seven && !is_opera_95;
  26         var opera95_bugs = /opera\/(9\.5)/.test( clientPC );
  27 }
  28 // Start at 4 to minimize the chance of breaking on IE10 :)
  29 var ie6_bugs = /msie [4-6]/.test( clientPC );
  30
  31 // Global external objects used by this script.
  32 /*extern ta, stylepath, skin */
  33
  34 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  35 var doneOnloadHook;
  36
  37 if (!window.onloadFuncts) {
  38         var onloadFuncts = [];
  39 }
  40
  41 function addOnloadHook( hookFunct ) {
  42         // Allows add-on scripts to add onload functions
  43         if( !doneOnloadHook ) {
  44                 onloadFuncts[onloadFuncts.length] = hookFunct;
  45         } else {
  46                 hookFunct();  // bug in MSIE script loading
  47         }
  48 }
  49
  50 function hookEvent( hookName, hookFunct ) {
  51         addHandler( window, hookName, hookFunct );
  52 }
  53
  54 function importScript( page ) {
  55         // TODO: might want to introduce a utility function to match wfUrlencode() in PHP
  56         var uri = wgScript + '?title=' +
  57                 encodeURIComponent(page.replace(/ /g,'_')).replace(/%2F/ig,'/').replace(/%3A/ig,':') +
  58                 '&action=raw&ctype=text/javascript';
  59         return importScriptURI( uri );
  60 }
  61
  62 var loadedScripts = {}; // included-scripts tracker
  63 function importScriptURI( url ) {
  64         if ( loadedScripts[url] ) {
  65                 return null;
  66         }
  67         loadedScripts[url] = true;
  68         var s = document.createElement( 'script' );
  69         s.setAttribute( 'src', url );
  70         s.setAttribute( 'type', 'text/javascript' );
  71         document.getElementsByTagName('head')[0].appendChild( s );
  72         return s;
  73 }
  74
  75 function importStylesheet( page ) {
  76         return importStylesheetURI( wgScript + '?action=raw&ctype=text/css&title=' + encodeURIComponent( page.replace(/ /g,'_') ) );
  77 }
  78
  79 function importStylesheetURI( url, media ) {
  80         var l = document.createElement( 'link' );
  81         l.type = 'text/css';
  82         l.rel = 'stylesheet';
  83         l.href = url;
  84         if( media ) {
  85                 l.media = media;
  86         }
  87         document.getElementsByTagName('head')[0].appendChild( l );
  88         return l;
  89 }
  90
  91 function appendCSS( text ) {
  92         var s = document.createElement( 'style' );
  93         s.type = 'text/css';
  94         s.rel = 'stylesheet';
  95         if ( s.styleSheet ) {
  96                 s.styleSheet.cssText = text; // IE
  97         } else {
  98                 s.appendChild( document.createTextNode( text + '' ) ); // Safari sometimes borks on null
  99         }
 100         document.getElementsByTagName('head')[0].appendChild( s );
 101         return s;
 102 }
 103
 104 // Special stylesheet links for Monobook only (see bug 14717)
 105 if ( typeof stylepath != 'undefined' && skin == 'monobook' ) {
 106         if ( opera6_bugs ) {
 107                 importStylesheetURI( stylepath + '/' + skin + '/Opera6Fixes.css' );
 108         } else if ( opera7_bugs ) {
 109                 importStylesheetURI( stylepath + '/' + skin + '/Opera7Fixes.css' );
 110         } else if ( opera95_bugs ) {
 111                 importStylesheetURI( stylepath + '/' + skin + '/Opera9Fixes.css' );
 112         } else if ( ff2_bugs ) {
 113                 importStylesheetURI( stylepath + '/' + skin + '/FF2Fixes.css' );
 114         }
 115 }
 116
 117
 118 if ( wgBreakFrames ) {
 119         // Un-trap us from framesets
 120         if ( window.top != window ) {
 121                 window.top.location = window.location;
 122         }
 123 }
 124
 125 function showTocToggle() {
 126         if ( document.createTextNode ) {
 127                 // Uses DOM calls to avoid document.write + XHTML issues
 128
 129                 var linkHolder = document.getElementById( 'toctitle' );
 130                 var existingLink = document.getElementById( 'togglelink' );
 131                 if ( !linkHolder || existingLink ) {
 132                         // Don't add the toggle link twice
 133                         return;
 134                 }
 135
 136                 var outerSpan = document.createElement( 'span' );
 137                 outerSpan.className = 'toctoggle';
 138
 139                 var toggleLink = document.createElement( 'a' );
 140                 toggleLink.id = 'togglelink';
 141                 toggleLink.className = 'internal';
 142                 toggleLink.href = 'javascript:toggleToc()';
 143                 toggleLink.appendChild( document.createTextNode( tocHideText ) );
 144
 145                 outerSpan.appendChild( document.createTextNode( '[' ) );
 146                 outerSpan.appendChild( toggleLink );
 147                 outerSpan.appendChild( document.createTextNode( ']' ) );
 148
 149                 linkHolder.appendChild( document.createTextNode( ' ' ) );
 150                 linkHolder.appendChild( outerSpan );
 151
 152                 var cookiePos = document.cookie.indexOf( "hidetoc=" );
 153                 if ( cookiePos > -1 && document.cookie.charAt( cookiePos + 8 ) == 1 ) {
 154                         toggleToc();
 155                 }
 156         }
 157 }
 158
 159 function changeText( el, newText ) {
 160         // Safari work around
 161         if ( el.innerText ) {
 162                 el.innerText = newText;
 163         } else if ( el.firstChild && el.firstChild.nodeValue ) {
 164                 el.firstChild.nodeValue = newText;
 165         }
 166 }
 167
 168 function toggleToc() {
 169         var tocmain = document.getElementById( 'toc' );
 170         var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
 171         var toggleLink = document.getElementById( 'togglelink' );
 172
 173         if ( toc && toggleLink && toc.style.display == 'none' ) {
 174                 changeText( toggleLink, tocHideText );
 175                 toc.style.display = 'block';
 176                 document.cookie = "hidetoc=0";
 177                 tocmain.className = 'toc';
 178         } else {
 179                 changeText( toggleLink, tocShowText );
 180                 toc.style.display = 'none';
 181                 document.cookie = "hidetoc=1";
 182                 tocmain.className = 'toc tochidden';
 183         }
 184 }
 185
 186 var mwEditButtons = [];
 187 var mwCustomEditButtons = []; // eg to add in MediaWiki:Common.js
 188
 189 function escapeQuotes( text ) {
 190         var re = new RegExp( "'", "g" );
 191         text = text.replace( re, "\\'" );
 192         re = new RegExp( "\\n", "g" );
 193         text = text.replace( re, "\\n" );
 194         return escapeQuotesHTML( text );
 195 }
 196
 197 function escapeQuotesHTML( text ) {
 198         var re = new RegExp( '&', "g" );
 199         text = text.replace( re, "&amp;" );
 200         re = new RegExp( '"', "g" );
 201         text = text.replace( re, "&quot;" );
 202         re = new RegExp( '<', "g" );
 203         text = text.replace( re, "&lt;" );
 204         re = new RegExp( '>', "g" );
 205         text = text.replace( re, "&gt;" );
 206         return text;
 207 }
 208
 209 /**
 210  * Set the accesskey prefix based on browser detection.
 211  */
 212 var tooltipAccessKeyPrefix = 'alt-';
 213 if ( is_opera ) {
 214         tooltipAccessKeyPrefix = 'shift-esc-';
 215 } else if ( !is_safari_win && is_safari && webkit_version > 526 ) {
 216         tooltipAccessKeyPrefix = 'ctrl-alt-';
 217 } else if ( !is_safari_win && ( is_safari
 218                 || clientPC.indexOf('mac') != -1
 219                 || clientPC.indexOf('konqueror') != -1 ) ) {
 220         tooltipAccessKeyPrefix = 'ctrl-';
 221 } else if ( is_ff2 ) {
 222         tooltipAccessKeyPrefix = 'alt-shift-';
 223 }
 224 var tooltipAccessKeyRegexp = /\[(ctrl-)?(alt-)?(shift-)?(esc-)?(.)\]$/;
 225
 226 /**
 227  * Add the appropriate prefix to the accesskey shown in the tooltip.
 228  * If the nodeList parameter is given, only those nodes are updated;
 229  * otherwise, all the nodes that will probably have accesskeys by
 230  * default are updated.
 231  *
 232  * @param Array nodeList -- list of elements to update
 233  */
 234 function updateTooltipAccessKeys( nodeList ) {
 235         if ( !nodeList ) {
 236                 // Rather than scan all links on the whole page, we can just scan these
 237                 // containers which contain the relevant links. This is really just an
 238                 // optimization technique.
 239                 var linkContainers = [
 240                         'column-one', // Monobook and Modern
 241                         'head', 'panel', 'p-logo' // Vector
 242                 ];
 243                 for ( var i in linkContainers ) {
 244                         var linkContainer = document.getElementById( linkContainers[i] );
 245                         if ( linkContainer ) {
 246                                 updateTooltipAccessKeys( linkContainer.getElementsByTagName( 'a' ) );
 247                         }
 248                 }
 249                 // these are rare enough that no such optimization is needed
 250                 updateTooltipAccessKeys( document.getElementsByTagName( 'input' ) );
 251                 updateTooltipAccessKeys( document.getElementsByTagName( 'label' ) );
 252                 return;
 253         }
 254
 255         for ( var i = 0; i < nodeList.length; i++ ) {
 256                 var element = nodeList[i];
 257                 var tip = element.getAttribute( 'title' );
 258                 if ( tip && tooltipAccessKeyRegexp.exec( tip ) ) {
 259                         tip = tip.replace(tooltipAccessKeyRegexp,
 260                                           '[' + tooltipAccessKeyPrefix + "$5]");
 261                         element.setAttribute( 'title', tip );
 262                 }
 263         }
 264 }
 265
 266 /**
 267  * Add a link to one of the portlet menus on the page, including:
 268  *
 269  * p-cactions: Content actions (shown as tabs above the main content in Monobook)
 270  * p-personal: Personal tools (shown at the top right of the page in Monobook)
 271  * p-navigation: Navigation
 272  * p-tb: Toolbox
 273  *
 274  * This function exists for the convenience of custom JS authors.  All
 275  * but the first three parameters are optional, though providing at
 276  * least an id and a tooltip is recommended.
 277  *
 278  * By default the new link will be added to the end of the list.  To
 279  * add the link before a given existing item, pass the DOM node of
 280  * that item (easily obtained with document.getElementById()) as the
 281  * nextnode parameter; to add the link _after_ an existing item, pass
 282  * the node's nextSibling instead.
 283  *
 284  * @param String portlet -- id of the target portlet ("p-cactions", "p-personal", "p-navigation" or "p-tb")
 285  * @param String href -- link URL
 286  * @param String text -- link text (will be automatically lowercased by CSS for p-cactions in Monobook)
 287  * @param String id -- id of the new item, should be unique and preferably have the appropriate prefix ("ca-", "pt-", "n-" or "t-")
 288  * @param String tooltip -- text to show when hovering over the link, without accesskey suffix
 289  * @param String accesskey -- accesskey to activate this link (one character, try to avoid conflicts)
 290  * @param Node nextnode -- the DOM node before which the new item should be added, should be another item in the same list
 291  *
 292  * @return Node -- the DOM node of the new item (an LI element) or null
 293  */
 294 function addPortletLink( portlet, href, text, id, tooltip, accesskey, nextnode ) {
 295         var root = document.getElementById( portlet );
 296         if ( !root ) {
 297                 return null;
 298         }
 299         var node = root.getElementsByTagName( 'ul' )[0];
 300         if ( !node ) {
 301                 return null;
 302         }
 303
 304         // unhide portlet if it was hidden before
 305         root.className = root.className.replace( /(^| )emptyPortlet( |$)/, "$2" );
 306
 307         var span = document.createElement( 'span' );
 308         span.appendChild( document.createTextNode( text ) );
 309
 310         var link = document.createElement( 'a' );
 311         link.appendChild( span );
 312         link.href = href;
 313
 314         var item = document.createElement( 'li' );
 315         item.appendChild( link );
 316         if ( id ) {
 317                 item.id = id;
 318         }
 319
 320         if ( accesskey ) {
 321                 link.setAttribute( 'accesskey', accesskey );
 322                 tooltip += ' [' + accesskey + ']';
 323         }
 324         if ( tooltip ) {
 325                 link.setAttribute( 'title', tooltip );
 326         }
 327         if ( accesskey && tooltip ) {
 328                 updateTooltipAccessKeys( new Array( link ) );
 329         }
 330
 331         if ( nextnode && nextnode.parentNode == node ) {
 332                 node.insertBefore( item, nextnode );
 333         } else {
 334                 node.appendChild( item );  // IE compatibility (?)
 335         }
 336
 337         return item;
 338 }
 339
 340 function getInnerText( el ) {
 341         if ( typeof el == 'string' ) {
 342                 return el;
 343         }
 344         if ( typeof el == 'undefined' ) {
 345                 return el;
 346         }
 347         if ( el.textContent ) {
 348                 return el.textContent; // not needed but it is faster
 349         }
 350         if ( el.innerText ) {
 351                 return el.innerText; // IE doesn't have textContent
 352         }
 353         var str = '';
 354
 355         var cs = el.childNodes;
 356         var l = cs.length;
 357         for ( var i = 0; i < l; i++ ) {
 358                 switch ( cs[i].nodeType ) {
 359                         case 1: // ELEMENT_NODE
 360                                 str += ts_getInnerText( cs[i] );
 361                                 break;
 362                         case 3: // TEXT_NODE
 363                                 str += cs[i].nodeValue;
 364                                 break;
 365                 }
 366         }
 367         return str;
 368 }
 369
 370 /* Dummy for deprecated function */
 371 function akeytt( doId ) {
 372 }
 373
 374 var checkboxes;
 375 var lastCheckbox;
 376
 377 function setupCheckboxShiftClick() {
 378         checkboxes = [];
 379         lastCheckbox = null;
 380         var inputs = document.getElementsByTagName( 'input' );
 381         addCheckboxClickHandlers( inputs );
 382 }
 383
 384 function addCheckboxClickHandlers( inputs, start ) {
 385         if ( !start ) {
 386                 start = 0;
 387         }
 388
 389         var finish = start + 250;
 390         if ( finish > inputs.length ) {
 391                 finish = inputs.length;
 392         }
 393
 394         for ( var i = start; i < finish; i++ ) {
 395                 var cb = inputs[i];
 396                 if ( !cb.type || cb.type.toLowerCase() != 'checkbox' ) {
 397                         continue;
 398                 }
 399                 var end = checkboxes.length;
 400                 checkboxes[end] = cb;
 401                 cb.index = end;
 402                 cb.onclick = checkboxClickHandler;
 403         }
 404
 405         if ( finish < inputs.length ) {
 406                 setTimeout( function() {
 407                         addCheckboxClickHandlers( inputs, finish );
 408                 }, 200 );
 409         }
 410 }
 411
 412 function checkboxClickHandler( e ) {
 413         if ( typeof e == 'undefined' ) {
 414                 e = window.event;
 415         }
 416         if ( !e.shiftKey || lastCheckbox === null ) {
 417                 lastCheckbox = this.index;
 418                 return true;
 419         }
 420         var endState = this.checked;
 421         var start, finish;
 422         if ( this.index < lastCheckbox ) {
 423                 start = this.index + 1;
 424                 finish = lastCheckbox;
 425         } else {
 426                 start = lastCheckbox;
 427                 finish = this.index - 1;
 428         }
 429         for ( var i = start; i <= finish; ++i ) {
 430                 checkboxes[i].checked = endState;
 431                 if( i > start && typeof checkboxes[i].onchange == 'function' ) {
 432                         checkboxes[i].onchange(); // fire triggers
 433                 }
 434         }
 435         lastCheckbox = this.index;
 436         return true;
 437 }
 438
 439
 440 /*
 441         Written by Jonathan Snook, http://www.snook.ca/jonathan
 442         Add-ons by Robert Nyman, http://www.robertnyman.com
 443         Author says "The credit comment is all it takes, no license. Go crazy with it!:-)"
 444         From http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/
 445 */
 446 function getElementsByClassName( oElm, strTagName, oClassNames ) {
 447         var arrReturnElements = new Array();
 448         if ( typeof( oElm.getElementsByClassName ) == 'function' ) {
 449                 /* Use a native implementation where possible FF3, Saf3.2, Opera 9.5 */
 450                 var arrNativeReturn = oElm.getElementsByClassName( oClassNames );
 451                 if ( strTagName == '*' ) {
 452                         return arrNativeReturn;
 453                 }
 454                 for ( var h = 0; h < arrNativeReturn.length; h++ ) {
 455                         if( arrNativeReturn[h].tagName.toLowerCase() == strTagName.toLowerCase() ) {
 456                                 arrReturnElements[arrReturnElements.length] = arrNativeReturn[h];
 457                         }
 458                 }
 459                 return arrReturnElements;
 460         }
 461         var arrElements = ( strTagName == '*' && oElm.all ) ? oElm.all : oElm.getElementsByTagName( strTagName );
 462         var arrRegExpClassNames = new Array();
 463         if( typeof oClassNames == 'object' ) {
 464                 for( var i = 0; i < oClassNames.length; i++ ) {
 465                         arrRegExpClassNames[arrRegExpClassNames.length] =
 466                                 new RegExp("(^|\\s)" + oClassNames[i].replace(/\-/g, "\\-") + "(\\s|$)");
 467                 }
 468         } else {
 469                 arrRegExpClassNames[arrRegExpClassNames.length] =
 470                         new RegExp("(^|\\s)" + oClassNames.replace(/\-/g, "\\-") + "(\\s|$)");
 471         }
 472         var oElement;
 473         var bMatchesAll;
 474         for( var j = 0; j < arrElements.length; j++ ) {
 475                 oElement = arrElements[j];
 476                 bMatchesAll = true;
 477                 for( var k = 0; k < arrRegExpClassNames.length; k++ ) {
 478                         if( !arrRegExpClassNames[k].test( oElement.className ) ) {
 479                                 bMatchesAll = false;
 480                                 break;
 481                         }
 482                 }
 483                 if( bMatchesAll ) {
 484                         arrReturnElements[arrReturnElements.length] = oElement;
 485                 }
 486         }
 487         return ( arrReturnElements );
 488 }
 489
 490 function redirectToFragment( fragment ) {
 491         var match = navigator.userAgent.match(/AppleWebKit\/(\d+)/);
 492         if ( match ) {
 493                 var webKitVersion = parseInt( match[1] );
 494                 if ( webKitVersion < 420 ) {
 495                         // Released Safari w/ WebKit 418.9.1 messes up horribly
 496                         // Nightlies of 420+ are ok
 497                         return;
 498                 }
 499         }
 500         if ( window.location.hash == '' ) {
 501                 window.location.hash = fragment;
 502
 503                 // Mozilla needs to wait until after load, otherwise the window doesn't
 504                 // scroll.  See <https://bugzilla.mozilla.org/show_bug.cgi?id=516293>.
 505                 // There's no obvious way to detect this programmatically, so we use
 506                 // version-testing.  If Firefox fixes the bug, they'll jump twice, but
 507                 // better twice than not at all, so make the fix hit future versions as
 508                 // well.
 509                 if ( is_gecko ) {
 510                         addOnloadHook(function() {
 511                                 if ( window.location.hash == fragment ) {
 512                                         window.location.hash = fragment;
 513                                 }
 514                         });
 515                 }
 516         }
 517 }
 518
 519 /*
 520  * Table sorting script based on one (c) 1997-2006 Stuart Langridge and Joost
 521  * de Valk:
 522  * http://www.joostdevalk.nl/code/sortable-table/
 523  * http://www.kryogenix.org/code/browser/sorttable/
 524  *
 525  * @todo don't break on colspans/rowspans (bug 8028)
 526  * @todo language-specific digit grouping/decimals (bug 8063)
 527  * @todo support all accepted date formats (bug 8226)
 528  */
 529
 530 var ts_image_path = stylepath + '/common/images/';
 531 var ts_image_up = 'sort_up.gif';
 532 var ts_image_down = 'sort_down.gif';
 533 var ts_image_none = 'sort_none.gif';
 534 var ts_europeandate = wgContentLanguage != 'en'; // The non-American-inclined can change to "true"
 535 var ts_alternate_row_colors = false;
 536 var ts_number_transform_table = null;
 537 var ts_number_regex = null;
 538
 539 function sortables_init() {
 540         var idnum = 0;
 541         // Find all tables with class sortable and make them sortable
 542         var tables = getElementsByClassName( document, 'table', 'sortable' );
 543         for ( var ti = 0; ti < tables.length ; ti++ ) {
 544                 if ( !tables[ti].id ) {
 545                         tables[ti].setAttribute( 'id', 'sortable_table_id_' + idnum );
 546                         ++idnum;
 547                 }
 548                 ts_makeSortable( tables[ti] );
 549         }
 550 }
 551
 552 function ts_makeSortable( table ) {
 553         var firstRow;
 554         if ( table.rows && table.rows.length > 0 ) {
 555                 if ( table.tHead && table.tHead.rows.length > 0 ) {
 556                         firstRow = table.tHead.rows[table.tHead.rows.length-1];
 557                 } else {
 558                         firstRow = table.rows[0];
 559                 }
 560         }
 561         if ( !firstRow ) {
 562                 return;
 563         }
 564
 565         // We have a first row: assume it's the header, and make its contents clickable links
 566         for ( var i = 0; i < firstRow.cells.length; i++ ) {
 567                 var cell = firstRow.cells[i];
 568                 if ( (' ' + cell.className + ' ').indexOf(' unsortable ') == -1 ) {
 569                         cell.innerHTML += '<a href="#" class="sortheader" '
 570                                 + 'onclick="ts_resortTable(this);return false;">'
 571                                 + '<span class="sortarrow">'
 572                                 + '<img src="'
 573                                 + ts_image_path
 574                                 + ts_image_none
 575                                 + '" alt="&darr;"/></span></a>';
 576                 }
 577         }
 578         if ( ts_alternate_row_colors ) {
 579                 ts_alternate( table );
 580         }
 581 }
 582
 583 function ts_getInnerText( el ) {
 584         return getInnerText( el );
 585 }
 586
 587 function ts_resortTable( lnk ) {
 588         // get the span
 589         var span = lnk.getElementsByTagName('span')[0];
 590
 591         var td = lnk.parentNode;
 592         var tr = td.parentNode;
 593         var column = td.cellIndex;
 594
 595         var table = tr.parentNode;
 596         while ( table && !( table.tagName && table.tagName.toLowerCase() == 'table' ) ) {
 597                 table = table.parentNode;
 598         }
 599         if ( !table ) {
 600                 return;
 601         }
 602
 603         if ( table.rows.length <= 1 ) {
 604                 return;
 605         }
 606
 607         // Generate the number transform table if it's not done already
 608         if ( ts_number_transform_table === null ) {
 609                 ts_initTransformTable();
 610         }
 611
 612         // Work out a type for the column
 613         // Skip the first row if that's where the headings are
 614         var rowStart = ( table.tHead && table.tHead.rows.length > 0 ? 0 : 1 );
 615
 616         var itm = '';
 617         for ( var i = rowStart; i < table.rows.length; i++ ) {
 618                 if ( table.rows[i].cells.length > column ) {
 619                         itm = ts_getInnerText(table.rows[i].cells[column]);
 620                         itm = itm.replace(/^[\s\xa0]+/, '').replace(/[\s\xa0]+$/, '');
 621                         if ( itm != '' ) {
 622                                 break;
 623                         }
 624                 }
 625         }
 626
 627         // TODO: bug 8226, localised date formats
 628         var sortfn = ts_sort_generic;
 629         var preprocessor = ts_toLowerCase;
 630         if ( /^\d\d[\/. -][a-zA-Z]{3}[\/. -]\d\d\d\d$/.test( itm ) ) {
 631                 preprocessor = ts_dateToSortKey;
 632         } else if ( /^\d\d[\/.-]\d\d[\/.-]\d\d\d\d$/.test( itm ) ) {
 633                 preprocessor = ts_dateToSortKey;
 634         } else if ( /^\d\d[\/.-]\d\d[\/.-]\d\d$/.test( itm ) ) {
 635                 preprocessor = ts_dateToSortKey;
 636                 // (minus sign)([pound dollar euro yen currency]|cents)
 637         } else if ( /(^([-\u2212] *)?[\u00a3$\u20ac\u00a4\u00a5]|\u00a2$)/.test( itm ) ) {
 638                 preprocessor = ts_currencyToSortKey;
 639         } else if ( ts_number_regex.test( itm ) ) {
 640                 preprocessor = ts_parseFloat;
 641         }
 642
 643         var reverse = ( span.getAttribute( 'sortdir' ) == 'down' );
 644
 645         var newRows = new Array();
 646         var staticRows = new Array();
 647         for ( var j = rowStart; j < table.rows.length; j++ ) {
 648                 var row = table.rows[j];
 649                 if( (' ' + row.className + ' ').indexOf(' unsortable ') < 0 ) {
 650                         var keyText = ts_getInnerText( row.cells[column] );
 651                         if( keyText === undefined ) {
 652                                 keyText = '';
 653                         }
 654                         var oldIndex = ( reverse ? -j : j );
 655                         var preprocessed = preprocessor( keyText.replace(/^[\s\xa0]+/, '').replace(/[\s\xa0]+$/, '') );
 656
 657                         newRows[newRows.length] = new Array( row, preprocessed, oldIndex );
 658                 } else {
 659                         staticRows[staticRows.length] = new Array( row, false, j-rowStart );
 660                 }
 661         }
 662
 663         newRows.sort( sortfn );
 664
 665         var arrowHTML;
 666         if ( reverse ) {
 667                 arrowHTML = '<img src="' + ts_image_path + ts_image_down + '" alt="&darr;"/>';
 668                 newRows.reverse();
 669                 span.setAttribute( 'sortdir', 'up' );
 670         } else {
 671                 arrowHTML = '<img src="' + ts_image_path + ts_image_up + '" alt="&uarr;"/>';
 672                 span.setAttribute( 'sortdir', 'down' );
 673         }
 674
 675         for ( var i = 0; i < staticRows.length; i++ ) {
 676                 var row = staticRows[i];
 677                 newRows.splice( row[2], 0, row );
 678         }
 679
 680         // We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
 681         // don't do sortbottom rows
 682         for ( var i = 0; i < newRows.length; i++ ) {
 683                 if ( ( ' ' + newRows[i][0].className + ' ').indexOf(' sortbottom ') == -1 ) {
 684                         table.tBodies[0].appendChild( newRows[i][0] );
 685                 }
 686         }
 687         // do sortbottom rows only
 688         for ( var i = 0; i < newRows.length; i++ ) {
 689                 if ( ( ' ' + newRows[i][0].className + ' ').indexOf(' sortbottom ') != -1 ) {
 690                         table.tBodies[0].appendChild( newRows[i][0] );
 691                 }
 692         }
 693
 694         // Delete any other arrows there may be showing
 695         var spans = getElementsByClassName( tr, 'span', 'sortarrow' );
 696         for ( var i = 0; i < spans.length; i++ ) {
 697                 spans[i].innerHTML = '<img src="' + ts_image_path + ts_image_none + '" alt="&darr;"/>';
 698         }
 699         span.innerHTML = arrowHTML;
 700
 701         if ( ts_alternate_row_colors ) {
 702                 ts_alternate( table );
 703         }
 704 }
 705
 706 function ts_initTransformTable() {
 707         if ( typeof wgSeparatorTransformTable == 'undefined'
 708                         || ( wgSeparatorTransformTable[0] == '' && wgDigitTransformTable[2] == '' ) )
 709         {
 710                 digitClass = "[0-9,.]";
 711                 ts_number_transform_table = false;
 712         } else {
 713                 ts_number_transform_table = {};
 714                 // Unpack the transform table
 715                 // Separators
 716                 ascii = wgSeparatorTransformTable[0].split("\t");
 717                 localised = wgSeparatorTransformTable[1].split("\t");
 718                 for ( var i = 0; i < ascii.length; i++ ) {
 719                         ts_number_transform_table[localised[i]] = ascii[i];
 720                 }
 721                 // Digits
 722                 ascii = wgDigitTransformTable[0].split("\t");
 723                 localised = wgDigitTransformTable[1].split("\t");
 724                 for ( var i = 0; i < ascii.length; i++ ) {
 725                         ts_number_transform_table[localised[i]] = ascii[i];
 726                 }
 727
 728                 // Construct regex for number identification
 729                 digits = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ',', '\\.'];
 730                 maxDigitLength = 1;
 731                 for ( var digit in ts_number_transform_table ) {
 732                         // Escape regex metacharacters
 733                         digits.push(
 734                                 digit.replace( /[\\\\$\*\+\?\.\(\)\|\{\}\[\]\-]/,
 735                                         function( s ) { return '\\' + s; } )
 736                         );
 737                         if ( digit.length > maxDigitLength ) {
 738                                 maxDigitLength = digit.length;
 739                         }
 740                 }
 741                 if ( maxDigitLength > 1 ) {
 742                         digitClass = '[' + digits.join( '', digits ) + ']';
 743                 } else {
 744                         digitClass = '(' + digits.join( '|', digits ) + ')';
 745                 }
 746         }
 747
 748         // We allow a trailing percent sign, which we just strip.  This works fine
 749         // if percents and regular numbers aren't being mixed.
 750         ts_number_regex = new RegExp(
 751                 "^(" +
 752                         "[-+\u2212]?[0-9][0-9,]*(\\.[0-9,]*)?(E[-+\u2212]?[0-9][0-9,]*)?" + // Fortran-style scientific
 753                         "|" +
 754                         "[-+\u2212]?" + digitClass + "+%?" + // Generic localised
 755                 ")$", "i"
 756         );
 757 }
 758
 759 function ts_toLowerCase( s ) {
 760         return s.toLowerCase();
 761 }
 762
 763 function ts_dateToSortKey( date ) {
 764         // y2k notes: two digit years less than 50 are treated as 20XX, greater than 50 are treated as 19XX
 765         if ( date.length == 11 ) {
 766                 switch ( date.substr( 3, 3 ).toLowerCase() ) {
 767                         case 'jan':
 768                                 var month = '01';
 769                                 break;
 770                         case 'feb':
 771                                 var month = '02';
 772                                 break;
 773                         case 'mar':
 774                                 var month = '03';
 775                                 break;
 776                         case 'apr':
 777                                 var month = '04';
 778                                 break;
 779                         case 'may':
 780                                 var month = '05';
 781                                 break;
 782                         case 'jun':
 783                                 var month = '06';
 784                                 break;
 785                         case 'jul':
 786                                 var month = '07';
 787                                 break;
 788                         case 'aug':
 789                                 var month = '08';
 790                                 break;
 791                         case 'sep':
 792                                 var month = '09';
 793                                 break;
 794                         case 'oct':
 795                                 var month = '10';
 796                                 break;
 797                         case 'nov':
 798                                 var month = '11';
 799                                 break;
 800                         case 'dec':
 801                                 var month = '12';
 802                                 break;
 803                         // default: var month = '00';
 804                 }
 805                 return date.substr( 7, 4 ) + month + date.substr( 0, 2 );
 806         } else if ( date.length == 10 ) {
 807                 if ( ts_europeandate == false ) {
 808                         return date.substr( 6, 4 ) + date.substr( 0, 2 ) + date.substr( 3, 2 );
 809                 } else {
 810                         return date.substr( 6, 4 ) + date.substr( 3, 2 ) + date.substr( 0, 2 );
 811                 }
 812         } else if ( date.length == 8 ) {
 813                 yr = date.substr( 6, 2 );
 814                 if ( parseInt( yr ) < 50 ) {
 815                         yr = '20' + yr;
 816                 } else {
 817                         yr = '19' + yr;
 818                 }
 819                 if ( ts_europeandate == true ) {
 820                         return yr + date.substr( 3, 2 ) + date.substr( 0, 2 );
 821                 } else {
 822                         return yr + date.substr( 0, 2 ) + date.substr( 3, 2 );
 823                 }
 824         }
 825         return '00000000';
 826 }
 827
 828 function ts_parseFloat( s ) {
 829         if ( !s ) {
 830                 return 0;
 831         }
 832         if ( ts_number_transform_table != false ) {
 833                 var newNum = '', c;
 834
 835                 for ( var p = 0; p < s.length; p++ ) {
 836                         c = s.charAt( p );
 837                         if ( c in ts_number_transform_table ) {
 838                                 newNum += ts_number_transform_table[c];
 839                         } else {
 840                                 newNum += c;
 841                         }
 842                 }
 843                 s = newNum;
 844         }
 845         num = parseFloat( s.replace(/[, ]/g, '').replace("\u2212", '-') );
 846         return ( isNaN( num ) ? -Infinity : num );
 847 }
 848
 849 function ts_currencyToSortKey( s ) {
 850         return ts_parseFloat(s.replace(/[^-\u22120-9.,]/g,''));
 851 }
 852
 853 function ts_sort_generic( a, b ) {
 854         return a[1] < b[1] ? -1 : a[1] > b[1] ? 1 : a[2] - b[2];
 855 }
 856
 857 function ts_alternate( table ) {
 858         // Take object table and get all it's tbodies.
 859         var tableBodies = table.getElementsByTagName( 'tbody' );
 860         // Loop through these tbodies
 861         for ( var i = 0; i < tableBodies.length; i++ ) {
 862                 // Take the tbody, and get all it's rows
 863                 var tableRows = tableBodies[i].getElementsByTagName( 'tr' );
 864                 // Loop through these rows
 865                 // Start at 1 because we want to leave the heading row untouched
 866                 for ( var j = 0; j < tableRows.length; j++ ) {
 867                         // Check if j is even, and apply classes for both possible results
 868                         var oldClasses = tableRows[j].className.split(' ');
 869                         var newClassName = '';
 870                         for ( var k = 0; k < oldClasses.length; k++ ) {
 871                                 if ( oldClasses[k] != '' && oldClasses[k] != 'even' && oldClasses[k] != 'odd' ) {
 872                                         newClassName += oldClasses[k] + ' ';
 873                                 }
 874                         }
 875                         tableRows[j].className = newClassName + ( j % 2 == 0 ? 'even' : 'odd' );
 876                 }
 877         }
 878 }
 879
 880 /*
 881  * End of table sorting code
 882  */
 883
 884
 885 /**
 886  * Add a cute little box at the top of the screen to inform the user of
 887  * something, replacing any preexisting message.
 888  *
 889  * @param String -or- Dom Object message HTML to be put inside the right div
 890  * @param String className   Used in adding a class; should be different for each
 891  *   call to allow CSS/JS to hide different boxes.  null = no class used.
 892  * @return Boolean       True on success, false on failure
 893  */
 894 function jsMsg( message, className ) {
 895         if ( !document.getElementById ) {
 896                 return false;
 897         }
 898         // We special-case skin structures provided by the software.  Skins that
 899         // choose to abandon or significantly modify our formatting can just define
 900         // an mw-js-message div to start with.
 901         var messageDiv = document.getElementById( 'mw-js-message' );
 902         if ( !messageDiv ) {
 903                 messageDiv = document.createElement( 'div' );
 904                 if ( document.getElementById( 'column-content' )
 905                 && document.getElementById( 'content' ) ) {
 906                         // MonoBook, presumably
 907                         document.getElementById( 'content' ).insertBefore(
 908                                 messageDiv,
 909                                 document.getElementById( 'content' ).firstChild
 910                         );
 911                 } else if ( document.getElementById( 'content' )
 912                 && document.getElementById( 'article' ) ) {
 913                         // Non-Monobook but still recognizable (old-style)
 914                         document.getElementById( 'article').insertBefore(
 915                                 messageDiv,
 916                                 document.getElementById( 'article' ).firstChild
 917                         );
 918                 } else {
 919                         return false;
 920                 }
 921         }
 922
 923         messageDiv.setAttribute( 'id', 'mw-js-message' );
 924         messageDiv.style.display = 'block';
 925         if( className ) {
 926                 messageDiv.setAttribute( 'class', 'mw-js-message-' + className );
 927         }
 928
 929         if ( typeof message === 'object' ) {
 930                 while ( messageDiv.hasChildNodes() ) { // Remove old content
 931                         messageDiv.removeChild( messageDiv.firstChild );
 932                 }
 933                 messageDiv.appendChild( message ); // Append new content
 934         } else {
 935                 messageDiv.innerHTML = message;
 936         }
 937         return true;
 938 }
 939
 940 /**
 941  * Inject a cute little progress spinner after the specified element
 942  *
 943  * @param element Element to inject after
 944  * @param id Identifier string (for use with removeSpinner(), below)
 945  */
 946 function injectSpinner( element, id ) {
 947         var spinner = document.createElement( 'img' );
 948         spinner.id = 'mw-spinner-' + id;
 949         spinner.src = stylepath + '/common/images/spinner.gif';
 950         spinner.alt = spinner.title = '...';
 951         if( element.nextSibling ) {
 952                 element.parentNode.insertBefore( spinner, element.nextSibling );
 953         } else {
 954                 element.parentNode.appendChild( spinner );
 955         }
 956 }
 957
 958 /**
 959  * Remove a progress spinner added with injectSpinner()
 960  *
 961  * @param id Identifier string
 962  */
 963 function removeSpinner( id ) {
 964         var spinner = document.getElementById( 'mw-spinner-' + id );
 965         if( spinner ) {
 966                 spinner.parentNode.removeChild( spinner );
 967         }
 968 }
 969
 970 function runOnloadHook() {
 971         // don't run anything below this for non-dom browsers
 972         if ( doneOnloadHook || !( document.getElementById && document.getElementsByTagName ) ) {
 973                 return;
 974         }
 975
 976         // set this before running any hooks, since any errors below
 977         // might cause the function to terminate prematurely
 978         doneOnloadHook = true;
 979
 980         updateTooltipAccessKeys( null );
 981         setupCheckboxShiftClick();
 982         sortables_init();
 983
 984         // Run any added-on functions
 985         for ( var i = 0; i < onloadFuncts.length; i++ ) {
 986                 onloadFuncts[i]();
 987         }
 988 }
 989
 990 /**
 991  * Add an event handler to an element
 992  *
 993  * @param Element element Element to add handler to
 994  * @param String attach Event to attach to
 995  * @param callable handler Event handler callback
 996  */
 997 function addHandler( element, attach, handler ) {
 998         if( window.addEventListener ) {
 999                 element.addEventListener( attach, handler, false );
1000         } else if( window.attachEvent ) {
1001                 element.attachEvent( 'on' + attach, handler );
1002         }
1003 }
1004
1005 /**
1006  * Add a click event handler to an element
1007  *
1008  * @param Element element Element to add handler to
1009  * @param callable handler Event handler callback
1010  */
1011 function addClickHandler( element, handler ) {
1012         addHandler( element, 'click', handler );
1013 }
1014
1015 /**
1016  * Removes an event handler from an element
1017  *
1018  * @param Element element Element to remove handler from
1019  * @param String remove Event to remove
1020  * @param callable handler Event handler callback to remove
1021  */
1022 function removeHandler( element, remove, handler ) {
1023         if( window.removeEventListener ) {
1024                 element.removeEventListener( remove, handler, false );
1025         } else if( window.detachEvent ) {
1026                 element.detachEvent( 'on' + remove, handler );
1027         }
1028 }
1029 // note: all skins should call runOnloadHook() at the end of html output,
1030 //      so the below should be redundant. It's there just in case.
1031 hookEvent( 'load', runOnloadHook );
1032
1033 if ( ie6_bugs ) {
1034         importScriptURI( stylepath + '/common/IEFixes.js' );
1035 }
1036
1037 // For future use.
1038 mw = {};
1039
1040