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 // As recommended by <http://msdn.microsoft.com/en-us/library/ms537509.aspx>,
  29 // avoiding false positives from moronic extensions that append to the IE UA
  30 // string (bug 23171)
  31 var ie6_bugs = false;
  32 if ( /MSIE ([0-9]{1,}[\.0-9]{0,})/.exec( clientPC ) != null
  33 && parseFloat( RegExp.$1 ) <= 6.0 ) {
  34         ie6_bugs = true;
  35 }
  36
  37 // Global external objects used by this script.
  38 /*extern ta, stylepath, skin */
  39
  40 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  41 var doneOnloadHook;
  42
  43 if (!window.onloadFuncts) {
  44         var onloadFuncts = [];
  45 }
  46
  47 function addOnloadHook( hookFunct ) {
  48         // Allows add-on scripts to add onload functions
  49         if( !doneOnloadHook ) {
  50                 onloadFuncts[onloadFuncts.length] = hookFunct;
  51         } else {
  52                 hookFunct();  // bug in MSIE script loading
  53         }
  54 }
  55
  56 function hookEvent( hookName, hookFunct ) {
  57         addHandler( window, hookName, hookFunct );
  58 }
  59
  60 function importScript( page ) {
  61         // TODO: might want to introduce a utility function to match wfUrlencode() in PHP
  62         var uri = wgScript + '?title=' +
  63                 encodeURIComponent(page.replace(/ /g,'_')).replace(/%2F/ig,'/').replace(/%3A/ig,':') +
  64                 '&action=raw&ctype=text/javascript';
  65         return importScriptURI( uri );
  66 }
  67
  68 var loadedScripts = {}; // included-scripts tracker
  69 function importScriptURI( url ) {
  70         if ( loadedScripts[url] ) {
  71                 return null;
  72         }
  73         loadedScripts[url] = true;
  74         var s = document.createElement( 'script' );
  75         s.setAttribute( 'src', url );
  76         s.setAttribute( 'type', 'text/javascript' );
  77         document.getElementsByTagName('head')[0].appendChild( s );
  78         return s;
  79 }
  80
  81 function importStylesheet( page ) {
  82         return importStylesheetURI( wgScript + '?action=raw&ctype=text/css&title=' + encodeURIComponent( page.replace(/ /g,'_') ) );
  83 }
  84
  85 function importStylesheetURI( url, media ) {
  86         var l = document.createElement( 'link' );
  87         l.type = 'text/css';
  88         l.rel = 'stylesheet';
  89         l.href = url;
  90         if( media ) {
  91                 l.media = media;
  92         }
  93         document.getElementsByTagName('head')[0].appendChild( l );
  94         return l;
  95 }
  96
  97 function appendCSS( text ) {
  98         var s = document.createElement( 'style' );
  99         s.type = 'text/css';
 100         s.rel = 'stylesheet';
 101         if ( s.styleSheet ) {
 102                 s.styleSheet.cssText = text; // IE
 103         } else {
 104                 s.appendChild( document.createTextNode( text + '' ) ); // Safari sometimes borks on null
 105         }
 106         document.getElementsByTagName('head')[0].appendChild( s );
 107         return s;
 108 }
 109
 110 // Special stylesheet links for Monobook only (see bug 14717)
 111 if ( typeof stylepath != 'undefined' && skin == 'monobook' ) {
 112         if ( opera6_bugs ) {
 113                 importStylesheetURI( stylepath + '/' + skin + '/Opera6Fixes.css' );
 114         } else if ( opera7_bugs ) {
 115                 importStylesheetURI( stylepath + '/' + skin + '/Opera7Fixes.css' );
 116         } else if ( opera95_bugs ) {
 117                 importStylesheetURI( stylepath + '/' + skin + '/Opera9Fixes.css' );
 118         } else if ( ff2_bugs ) {
 119                 importStylesheetURI( stylepath + '/' + skin + '/FF2Fixes.css' );
 120         }
 121 }
 122
 123
 124 if ( wgBreakFrames ) {
 125         // Un-trap us from framesets
 126         if ( window.top != window ) {
 127                 window.top.location = window.location;
 128         }
 129 }
 130
 131 function showTocToggle() {
 132         if ( document.createTextNode ) {
 133                 // Uses DOM calls to avoid document.write + XHTML issues
 134
 135                 var linkHolder = document.getElementById( 'toctitle' );
 136                 var existingLink = document.getElementById( 'togglelink' );
 137                 if ( !linkHolder || existingLink ) {
 138                         // Don't add the toggle link twice
 139                         return;
 140                 }
 141
 142                 var outerSpan = document.createElement( 'span' );
 143                 outerSpan.className = 'toctoggle';
 144
 145                 var toggleLink = document.createElement( 'a' );
 146                 toggleLink.id = 'togglelink';
 147                 toggleLink.className = 'internal';
 148                 toggleLink.href = 'javascript:toggleToc()';
 149                 toggleLink.appendChild( document.createTextNode( tocHideText ) );
 150
 151                 outerSpan.appendChild( document.createTextNode( '[' ) );
 152                 outerSpan.appendChild( toggleLink );
 153                 outerSpan.appendChild( document.createTextNode( ']' ) );
 154
 155                 linkHolder.appendChild( document.createTextNode( ' ' ) );
 156                 linkHolder.appendChild( outerSpan );
 157
 158                 var cookiePos = document.cookie.indexOf( "hidetoc=" );
 159                 if ( cookiePos > -1 && document.cookie.charAt( cookiePos + 8 ) == 1 ) {
 160                         toggleToc();
 161                 }
 162         }
 163 }
 164
 165 function changeText( el, newText ) {
 166         // Safari work around
 167         if ( el.innerText ) {
 168                 el.innerText = newText;
 169         } else if ( el.firstChild && el.firstChild.nodeValue ) {
 170                 el.firstChild.nodeValue = newText;
 171         }
 172 }
 173
 174 function toggleToc() {
 175         var tocmain = document.getElementById( 'toc' );
 176         var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
 177         var toggleLink = document.getElementById( 'togglelink' );
 178
 179         if ( toc && toggleLink && toc.style.display == 'none' ) {
 180                 changeText( toggleLink, tocHideText );
 181                 toc.style.display = 'block';
 182                 document.cookie = "hidetoc=0";
 183                 tocmain.className = 'toc';
 184         } else {
 185                 changeText( toggleLink, tocShowText );
 186                 toc.style.display = 'none';
 187                 document.cookie = "hidetoc=1";
 188                 tocmain.className = 'toc tochidden';
 189         }
 190 }
 191
 192 var mwEditButtons = [];
 193 var mwCustomEditButtons = []; // eg to add in MediaWiki:Common.js
 194
 195 function escapeQuotes( text ) {
 196         var re = new RegExp( "'", "g" );
 197         text = text.replace( re, "\\'" );
 198         re = new RegExp( "\\n", "g" );
 199         text = text.replace( re, "\\n" );
 200         return escapeQuotesHTML( text );
 201 }
 202
 203 function escapeQuotesHTML( text ) {
 204         var re = new RegExp( '&', "g" );
 205         text = text.replace( re, "&amp;" );
 206         re = new RegExp( '"', "g" );
 207         text = text.replace( re, "&quot;" );
 208         re = new RegExp( '<', "g" );
 209         text = text.replace( re, "&lt;" );
 210         re = new RegExp( '>', "g" );
 211         text = text.replace( re, "&gt;" );
 212         return text;
 213 }
 214
 215 /**
 216  * Set the accesskey prefix based on browser detection.
 217  */
 218 var tooltipAccessKeyPrefix = 'alt-';
 219 if ( is_opera ) {
 220         tooltipAccessKeyPrefix = 'shift-esc-';
 221 } else if ( !is_safari_win && is_safari && webkit_version > 526 ) {
 222         tooltipAccessKeyPrefix = 'ctrl-alt-';
 223 } else if ( !is_safari_win && ( is_safari
 224                 || clientPC.indexOf('mac') != -1
 225                 || clientPC.indexOf('konqueror') != -1 ) ) {
 226         tooltipAccessKeyPrefix = 'ctrl-';
 227 } else if ( is_ff2 ) {
 228         tooltipAccessKeyPrefix = 'alt-shift-';
 229 }
 230 var tooltipAccessKeyRegexp = /\[(ctrl-)?(alt-)?(shift-)?(esc-)?(.)\]$/;
 231
 232 /**
 233  * Add the appropriate prefix to the accesskey shown in the tooltip.
 234  * If the nodeList parameter is given, only those nodes are updated;
 235  * otherwise, all the nodes that will probably have accesskeys by
 236  * default are updated.
 237  *
 238  * @param Array nodeList -- list of elements to update
 239  */
 240 function updateTooltipAccessKeys( nodeList ) {
 241         if ( !nodeList ) {
 242                 // Rather than scan all links on the whole page, we can just scan these
 243                 // containers which contain the relevant links. This is really just an
 244                 // optimization technique.
 245                 var linkContainers = [
 246                         'column-one', // Monobook and Modern
 247                         'head', 'panel', 'p-logo' // Vector
 248                 ];
 249                 for ( var i in linkContainers ) {
 250                         var linkContainer = document.getElementById( linkContainers[i] );
 251                         if ( linkContainer ) {
 252                                 updateTooltipAccessKeys( linkContainer.getElementsByTagName( 'a' ) );
 253                         }
 254                 }
 255                 // these are rare enough that no such optimization is needed
 256                 updateTooltipAccessKeys( document.getElementsByTagName( 'input' ) );
 257                 updateTooltipAccessKeys( document.getElementsByTagName( 'label' ) );
 258                 return;
 259         }
 260
 261         for ( var i = 0; i < nodeList.length; i++ ) {
 262                 var element = nodeList[i];
 263                 var tip = element.getAttribute( 'title' );
 264                 if ( tip && tooltipAccessKeyRegexp.exec( tip ) ) {
 265                         tip = tip.replace(tooltipAccessKeyRegexp,
 266                                           '[' + tooltipAccessKeyPrefix + "$5]");
 267                         element.setAttribute( 'title', tip );
 268                 }
 269         }
 270 }
 271
 272 /**
 273  * Add a link to one of the portlet menus on the page, including:
 274  *
 275  * p-cactions: Content actions (shown as tabs above the main content in Monobook)
 276  * p-personal: Personal tools (shown at the top right of the page in Monobook)
 277  * p-navigation: Navigation
 278  * p-tb: Toolbox
 279  *
 280  * This function exists for the convenience of custom JS authors.  All
 281  * but the first three parameters are optional, though providing at
 282  * least an id and a tooltip is recommended.
 283  *
 284  * By default the new link will be added to the end of the list.  To
 285  * add the link before a given existing item, pass the DOM node of
 286  * that item (easily obtained with document.getElementById()) as the
 287  * nextnode parameter; to add the link _after_ an existing item, pass
 288  * the node's nextSibling instead.
 289  *
 290  * @param String portlet -- id of the target portlet ("p-cactions", "p-personal", "p-navigation" or "p-tb")
 291  * @param String href -- link URL
 292  * @param String text -- link text (will be automatically lowercased by CSS for p-cactions in Monobook)
 293  * @param String id -- id of the new item, should be unique and preferably have the appropriate prefix ("ca-", "pt-", "n-" or "t-")
 294  * @param String tooltip -- text to show when hovering over the link, without accesskey suffix
 295  * @param String accesskey -- accesskey to activate this link (one character, try to avoid conflicts)
 296  * @param Node nextnode -- the DOM node before which the new item should be added, should be another item in the same list
 297  *
 298  * @return Node -- the DOM node of the new item (an LI element) or null
 299  */
 300 function addPortletLink( portlet, href, text, id, tooltip, accesskey, nextnode ) {
 301         var root = document.getElementById( portlet );
 302         if ( !root ) {
 303                 return null;
 304         }
 305         var node = root.getElementsByTagName( 'ul' )[0];
 306         if ( !node ) {
 307                 return null;
 308         }
 309
 310         // unhide portlet if it was hidden before
 311         root.className = root.className.replace( /(^| )emptyPortlet( |$)/, "$2" );
 312
 313         var span = document.createElement( 'span' );
 314         span.appendChild( document.createTextNode( text ) );
 315
 316         var link = document.createElement( 'a' );
 317         link.appendChild( span );
 318         link.href = href;
 319
 320         var item = document.createElement( 'li' );
 321         item.appendChild( link );
 322         if ( id ) {
 323                 item.id = id;
 324         }
 325
 326         if ( accesskey ) {
 327                 link.setAttribute( 'accesskey', accesskey );
 328                 tooltip += ' [' + accesskey + ']';
 329         }
 330         if ( tooltip ) {
 331                 link.setAttribute( 'title', tooltip );
 332         }
 333         if ( accesskey && tooltip ) {
 334                 updateTooltipAccessKeys( new Array( link ) );
 335         }
 336
 337         if ( nextnode && nextnode.parentNode == node ) {
 338                 node.insertBefore( item, nextnode );
 339         } else {
 340                 node.appendChild( item );  // IE compatibility (?)
 341         }
 342
 343         return item;
 344 }
 345
 346 function getInnerText( el ) {
 347         if ( typeof el == 'string' ) {
 348                 return el;
 349         }
 350         if ( typeof el == 'undefined' ) {
 351                 return el;
 352         }
 353         if ( el.textContent ) {
 354                 return el.textContent; // not needed but it is faster
 355         }
 356         if ( el.innerText ) {
 357                 return el.innerText; // IE doesn't have textContent
 358         }
 359         var str = '';
 360
 361         var cs = el.childNodes;
 362         var l = cs.length;
 363         for ( var i = 0; i < l; i++ ) {
 364                 switch ( cs[i].nodeType ) {
 365                         case 1: // ELEMENT_NODE
 366                                 str += ts_getInnerText( cs[i] );
 367                                 break;
 368                         case 3: // TEXT_NODE
 369                                 str += cs[i].nodeValue;
 370                                 break;
 371                 }
 372         }
 373         return str;
 374 }
 375
 376 /* Dummy for deprecated function */
 377 function akeytt( doId ) {
 378 }
 379
 380 var checkboxes;
 381 var lastCheckbox;
 382
 383 function setupCheckboxShiftClick() {
 384         checkboxes = [];
 385         lastCheckbox = null;
 386         var inputs = document.getElementsByTagName( 'input' );
 387         addCheckboxClickHandlers( inputs );
 388 }
 389
 390 function addCheckboxClickHandlers( inputs, start ) {
 391         if ( !start ) {
 392                 start = 0;
 393         }
 394
 395         var finish = start + 250;
 396         if ( finish > inputs.length ) {
 397                 finish = inputs.length;
 398         }
 399
 400         for ( var i = start; i < finish; i++ ) {
 401                 var cb = inputs[i];
 402                 if ( !cb.type || cb.type.toLowerCase() != 'checkbox' ) {
 403                         continue;
 404                 }
 405                 var end = checkboxes.length;
 406                 checkboxes[end] = cb;
 407                 cb.index = end;
 408                 cb.onclick = checkboxClickHandler;
 409         }
 410
 411         if ( finish < inputs.length ) {
 412                 setTimeout( function() {
 413                         addCheckboxClickHandlers( inputs, finish );
 414                 }, 200 );
 415         }
 416 }
 417
 418 function checkboxClickHandler( e ) {
 419         if ( typeof e == 'undefined' ) {
 420                 e = window.event;
 421         }
 422         if ( !e.shiftKey || lastCheckbox === null ) {
 423                 lastCheckbox = this.index;
 424                 return true;
 425         }
 426         var endState = this.checked;
 427         var start, finish;
 428         if ( this.index < lastCheckbox ) {
 429                 start = this.index + 1;
 430                 finish = lastCheckbox;
 431         } else {
 432                 start = lastCheckbox;
 433                 finish = this.index - 1;
 434         }
 435         for ( var i = start; i <= finish; ++i ) {
 436                 checkboxes[i].checked = endState;
 437                 if( i > start && typeof checkboxes[i].onchange == 'function' ) {
 438                         checkboxes[i].onchange(); // fire triggers
 439                 }
 440         }
 441         lastCheckbox = this.index;
 442         return true;
 443 }
 444
 445
 446 /*
 447         Written by Jonathan Snook, http://www.snook.ca/jonathan
 448         Add-ons by Robert Nyman, http://www.robertnyman.com
 449         Author says "The credit comment is all it takes, no license. Go crazy with it!:-)"
 450         From http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/
 451 */
 452 function getElementsByClassName( oElm, strTagName, oClassNames ) {
 453         var arrReturnElements = new Array();
 454         if ( typeof( oElm.getElementsByClassName ) == 'function' ) {
 455                 /* Use a native implementation where possible FF3, Saf3.2, Opera 9.5 */
 456                 var arrNativeReturn = oElm.getElementsByClassName( oClassNames );
 457                 if ( strTagName == '*' ) {
 458                         return arrNativeReturn;
 459                 }
 460                 for ( var h = 0; h < arrNativeReturn.length; h++ ) {
 461                         if( arrNativeReturn[h].tagName.toLowerCase() == strTagName.toLowerCase() ) {
 462                                 arrReturnElements[arrReturnElements.length] = arrNativeReturn[h];
 463                         }
 464                 }
 465                 return arrReturnElements;
 466         }
 467         var arrElements = ( strTagName == '*' && oElm.all ) ? oElm.all : oElm.getElementsByTagName( strTagName );
 468         var arrRegExpClassNames = new Array();
 469         if( typeof oClassNames == 'object' ) {
 470                 for( var i = 0; i < oClassNames.length; i++ ) {
 471                         arrRegExpClassNames[arrRegExpClassNames.length] =
 472                                 new RegExp("(^|\\s)" + oClassNames[i].replace(/\-/g, "\\-") + "(\\s|$)");
 473                 }
 474         } else {
 475                 arrRegExpClassNames[arrRegExpClassNames.length] =
 476                         new RegExp("(^|\\s)" + oClassNames.replace(/\-/g, "\\-") + "(\\s|$)");
 477         }
 478         var oElement;
 479         var bMatchesAll;
 480         for( var j = 0; j < arrElements.length; j++ ) {
 481                 oElement = arrElements[j];
 482                 bMatchesAll = true;
 483                 for( var k = 0; k < arrRegExpClassNames.length; k++ ) {
 484                         if( !arrRegExpClassNames[k].test( oElement.className ) ) {
 485                                 bMatchesAll = false;
 486                                 break;
 487                         }
 488                 }
 489                 if( bMatchesAll ) {
 490                         arrReturnElements[arrReturnElements.length] = oElement;
 491                 }
 492         }
 493         return ( arrReturnElements );
 494 }
 495
 496 function redirectToFragment( fragment ) {
 497         var match = navigator.userAgent.match(/AppleWebKit\/(\d+)/);
 498         if ( match ) {
 499                 var webKitVersion = parseInt( match[1] );
 500                 if ( webKitVersion < 420 ) {
 501                         // Released Safari w/ WebKit 418.9.1 messes up horribly
 502                         // Nightlies of 420+ are ok
 503                         return;
 504                 }
 505         }
 506         if ( window.location.hash == '' ) {
 507                 window.location.hash = fragment;
 508
 509                 // Mozilla needs to wait until after load, otherwise the window doesn't
 510                 // scroll.  See <https://bugzilla.mozilla.org/show_bug.cgi?id=516293>.
 511                 // There's no obvious way to detect this programmatically, so we use
 512                 // version-testing.  If Firefox fixes the bug, they'll jump twice, but
 513                 // better twice than not at all, so make the fix hit future versions as
 514                 // well.
 515                 if ( is_gecko ) {
 516                         addOnloadHook(function() {
 517                                 if ( window.location.hash == fragment ) {
 518                                         window.location.hash = fragment;
 519                                 }
 520                         });
 521                 }
 522         }
 523 }
 524
 525 /*
 526  * Table sorting script based on one (c) 1997-2006 Stuart Langridge and Joost
 527  * de Valk:
 528  * http://www.joostdevalk.nl/code/sortable-table/
 529  * http://www.kryogenix.org/code/browser/sorttable/
 530  *
 531  * @todo don't break on colspans/rowspans (bug 8028)
 532  * @todo language-specific digit grouping/decimals (bug 8063)
 533  * @todo support all accepted date formats (bug 8226)
 534  */
 535
 536 var ts_image_path = stylepath + '/common/images/';
 537 var ts_image_up = 'sort_up.gif';
 538 var ts_image_down = 'sort_down.gif';
 539 var ts_image_none = 'sort_none.gif';
 540 var ts_europeandate = wgContentLanguage != 'en'; // The non-American-inclined can change to "true"
 541 var ts_alternate_row_colors = false;
 542 var ts_number_transform_table = null;
 543 var ts_number_regex = null;
 544
 545 function sortables_init() {
 546         var idnum = 0;
 547         // Find all tables with class sortable and make them sortable
 548         var tables = getElementsByClassName( document, 'table', 'sortable' );
 549         for ( var ti = 0; ti < tables.length ; ti++ ) {
 550                 if ( !tables[ti].id ) {
 551                         tables[ti].setAttribute( 'id', 'sortable_table_id_' + idnum );
 552                         ++idnum;
 553                 }
 554                 ts_makeSortable( tables[ti] );
 555         }
 556 }
 557
 558 function ts_makeSortable( table ) {
 559         var firstRow;
 560         if ( table.rows && table.rows.length > 0 ) {
 561                 if ( table.tHead && table.tHead.rows.length > 0 ) {
 562                         firstRow = table.tHead.rows[table.tHead.rows.length-1];
 563                 } else {
 564                         firstRow = table.rows[0];
 565                 }
 566         }
 567         if ( !firstRow ) {
 568                 return;
 569         }
 570
 571         // We have a first row: assume it's the header, and make its contents clickable links
 572         for ( var i = 0; i < firstRow.cells.length; i++ ) {
 573                 var cell = firstRow.cells[i];
 574                 if ( (' ' + cell.className + ' ').indexOf(' unsortable ') == -1 ) {
 575                         cell.innerHTML += '<a href="#" class="sortheader" '
 576                                 + 'onclick="ts_resortTable(this);return false;">'
 577                                 + '<span class="sortarrow">'
 578                                 + '<img src="'
 579                                 + ts_image_path
 580                                 + ts_image_none
 581                                 + '" alt="&darr;"/></span></a>';
 582                 }
 583         }
 584         if ( ts_alternate_row_colors ) {
 585                 ts_alternate( table );
 586         }
 587 }
 588
 589 function ts_getInnerText( el ) {
 590         return getInnerText( el );
 591 }
 592
 593 function ts_resortTable( lnk ) {
 594         // get the span
 595         var span = lnk.getElementsByTagName('span')[0];
 596
 597         var td = lnk.parentNode;
 598         var tr = td.parentNode;
 599         var column = td.cellIndex;
 600
 601         var table = tr.parentNode;
 602         while ( table && !( table.tagName && table.tagName.toLowerCase() == 'table' ) ) {
 603                 table = table.parentNode;
 604         }
 605         if ( !table ) {
 606                 return;
 607         }
 608
 609         if ( table.rows.length <= 1 ) {
 610                 return;
 611         }
 612
 613         // Generate the number transform table if it's not done already
 614         if ( ts_number_transform_table === null ) {
 615                 ts_initTransformTable();
 616         }
 617
 618         // Work out a type for the column
 619         // Skip the first row if that's where the headings are
 620         var rowStart = ( table.tHead && table.tHead.rows.length > 0 ? 0 : 1 );
 621
 622         var itm = '';
 623         for ( var i = rowStart; i < table.rows.length; i++ ) {
 624                 if ( table.rows[i].cells.length > column ) {
 625                         itm = ts_getInnerText(table.rows[i].cells[column]);
 626                         itm = itm.replace(/^[\s\xa0]+/, '').replace(/[\s\xa0]+$/, '');
 627                         if ( itm != '' ) {
 628                                 break;
 629                         }
 630                 }
 631         }
 632
 633         // TODO: bug 8226, localised date formats
 634         var sortfn = ts_sort_generic;
 635         var preprocessor = ts_toLowerCase;
 636         if ( /^\d\d[\/. -][a-zA-Z]{3}[\/. -]\d\d\d\d$/.test( itm ) ) {
 637                 preprocessor = ts_dateToSortKey;
 638         } else if ( /^\d\d[\/.-]\d\d[\/.-]\d\d\d\d$/.test( itm ) ) {
 639                 preprocessor = ts_dateToSortKey;
 640         } else if ( /^\d\d[\/.-]\d\d[\/.-]\d\d$/.test( itm ) ) {
 641                 preprocessor = ts_dateToSortKey;
 642                 // (minus sign)([pound dollar euro yen currency]|cents)
 643         } else if ( /(^([-\u2212] *)?[\u00a3$\u20ac\u00a4\u00a5]|\u00a2$)/.test( itm ) ) {
 644                 preprocessor = ts_currencyToSortKey;
 645         } else if ( ts_number_regex.test( itm ) ) {
 646                 preprocessor = ts_parseFloat;
 647         }
 648
 649         var reverse = ( span.getAttribute( 'sortdir' ) == 'down' );
 650
 651         var newRows = new Array();
 652         var staticRows = new Array();
 653         for ( var j = rowStart; j < table.rows.length; j++ ) {
 654                 var row = table.rows[j];
 655                 if( (' ' + row.className + ' ').indexOf(' unsortable ') < 0 ) {
 656                         var keyText = ts_getInnerText( row.cells[column] );
 657                         if( keyText === undefined ) {
 658                                 keyText = '';
 659                         }
 660                         var oldIndex = ( reverse ? -j : j );
 661                         var preprocessed = preprocessor( keyText.replace(/^[\s\xa0]+/, '').replace(/[\s\xa0]+$/, '') );
 662
 663                         newRows[newRows.length] = new Array( row, preprocessed, oldIndex );
 664                 } else {
 665                         staticRows[staticRows.length] = new Array( row, false, j-rowStart );
 666                 }
 667         }
 668
 669         newRows.sort( sortfn );
 670
 671         var arrowHTML;
 672         if ( reverse ) {
 673                 arrowHTML = '<img src="' + ts_image_path + ts_image_down + '" alt="&darr;"/>';
 674                 newRows.reverse();
 675                 span.setAttribute( 'sortdir', 'up' );
 676         } else {
 677                 arrowHTML = '<img src="' + ts_image_path + ts_image_up + '" alt="&uarr;"/>';
 678                 span.setAttribute( 'sortdir', 'down' );
 679         }
 680
 681         for ( var i = 0; i < staticRows.length; i++ ) {
 682                 var row = staticRows[i];
 683                 newRows.splice( row[2], 0, row );
 684         }
 685
 686         // We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
 687         // don't do sortbottom rows
 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         // do sortbottom rows only
 694         for ( var i = 0; i < newRows.length; i++ ) {
 695                 if ( ( ' ' + newRows[i][0].className + ' ').indexOf(' sortbottom ') != -1 ) {
 696                         table.tBodies[0].appendChild( newRows[i][0] );
 697                 }
 698         }
 699
 700         // Delete any other arrows there may be showing
 701         var spans = getElementsByClassName( tr, 'span', 'sortarrow' );
 702         for ( var i = 0; i < spans.length; i++ ) {
 703                 spans[i].innerHTML = '<img src="' + ts_image_path + ts_image_none + '" alt="&darr;"/>';
 704         }
 705         span.innerHTML = arrowHTML;
 706
 707         if ( ts_alternate_row_colors ) {
 708                 ts_alternate( table );
 709         }
 710 }
 711
 712 function ts_initTransformTable() {
 713         if ( typeof wgSeparatorTransformTable == 'undefined'
 714                         || ( wgSeparatorTransformTable[0] == '' && wgDigitTransformTable[2] == '' ) )
 715         {
 716                 digitClass = "[0-9,.]";
 717                 ts_number_transform_table = false;
 718         } else {
 719                 ts_number_transform_table = {};
 720                 // Unpack the transform table
 721                 // Separators
 722                 ascii = wgSeparatorTransformTable[0].split("\t");
 723                 localised = wgSeparatorTransformTable[1].split("\t");
 724                 for ( var i = 0; i < ascii.length; i++ ) {
 725                         ts_number_transform_table[localised[i]] = ascii[i];
 726                 }
 727                 // Digits
 728                 ascii = wgDigitTransformTable[0].split("\t");
 729                 localised = wgDigitTransformTable[1].split("\t");
 730                 for ( var i = 0; i < ascii.length; i++ ) {
 731                         ts_number_transform_table[localised[i]] = ascii[i];
 732                 }
 733
 734                 // Construct regex for number identification
 735                 digits = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ',', '\\.'];
 736                 maxDigitLength = 1;
 737                 for ( var digit in ts_number_transform_table ) {
 738                         // Escape regex metacharacters
 739                         digits.push(
 740                                 digit.replace( /[\\\\$\*\+\?\.\(\)\|\{\}\[\]\-]/,
 741                                         function( s ) { return '\\' + s; } )
 742                         );
 743                         if ( digit.length > maxDigitLength ) {
 744                                 maxDigitLength = digit.length;
 745                         }
 746                 }
 747                 if ( maxDigitLength > 1 ) {
 748                         digitClass = '[' + digits.join( '', digits ) + ']';
 749                 } else {
 750                         digitClass = '(' + digits.join( '|', digits ) + ')';
 751                 }
 752         }
 753
 754         // We allow a trailing percent sign, which we just strip.  This works fine
 755         // if percents and regular numbers aren't being mixed.
 756         ts_number_regex = new RegExp(
 757                 "^(" +
 758                         "[-+\u2212]?[0-9][0-9,]*(\\.[0-9,]*)?(E[-+\u2212]?[0-9][0-9,]*)?" + // Fortran-style scientific
 759                         "|" +
 760                         "[-+\u2212]?" + digitClass + "+%?" + // Generic localised
 761                 ")$", "i"
 762         );
 763 }
 764
 765 function ts_toLowerCase( s ) {
 766         return s.toLowerCase();
 767 }
 768
 769 function ts_dateToSortKey( date ) {
 770         // y2k notes: two digit years less than 50 are treated as 20XX, greater than 50 are treated as 19XX
 771         if ( date.length == 11 ) {
 772                 switch ( date.substr( 3, 3 ).toLowerCase() ) {
 773                         case 'jan':
 774                                 var month = '01';
 775                                 break;
 776                         case 'feb':
 777                                 var month = '02';
 778                                 break;
 779                         case 'mar':
 780                                 var month = '03';
 781                                 break;
 782                         case 'apr':
 783                                 var month = '04';
 784                                 break;
 785                         case 'may':
 786                                 var month = '05';
 787                                 break;
 788                         case 'jun':
 789                                 var month = '06';
 790                                 break;
 791                         case 'jul':
 792                                 var month = '07';
 793                                 break;
 794                         case 'aug':
 795                                 var month = '08';
 796                                 break;
 797                         case 'sep':
 798                                 var month = '09';
 799                                 break;
 800                         case 'oct':
 801                                 var month = '10';
 802                                 break;
 803                         case 'nov':
 804                                 var month = '11';
 805                                 break;
 806                         case 'dec':
 807                                 var month = '12';
 808                                 break;
 809                         // default: var month = '00';
 810                 }
 811                 return date.substr( 7, 4 ) + month + date.substr( 0, 2 );
 812         } else if ( date.length == 10 ) {
 813                 if ( ts_europeandate == false ) {
 814                         return date.substr( 6, 4 ) + date.substr( 0, 2 ) + date.substr( 3, 2 );
 815                 } else {
 816                         return date.substr( 6, 4 ) + date.substr( 3, 2 ) + date.substr( 0, 2 );
 817                 }
 818         } else if ( date.length == 8 ) {
 819                 yr = date.substr( 6, 2 );
 820                 if ( parseInt( yr ) < 50 ) {
 821                         yr = '20' + yr;
 822                 } else {
 823                         yr = '19' + yr;
 824                 }
 825                 if ( ts_europeandate == true ) {
 826                         return yr + date.substr( 3, 2 ) + date.substr( 0, 2 );
 827                 } else {
 828                         return yr + date.substr( 0, 2 ) + date.substr( 3, 2 );
 829                 }
 830         }
 831         return '00000000';
 832 }
 833
 834 function ts_parseFloat( s ) {
 835         if ( !s ) {
 836                 return 0;
 837         }
 838         if ( ts_number_transform_table != false ) {
 839                 var newNum = '', c;
 840
 841                 for ( var p = 0; p < s.length; p++ ) {
 842                         c = s.charAt( p );
 843                         if ( c in ts_number_transform_table ) {
 844                                 newNum += ts_number_transform_table[c];
 845                         } else {
 846                                 newNum += c;
 847                         }
 848                 }
 849                 s = newNum;
 850         }
 851         num = parseFloat( s.replace(/[, ]/g, '').replace("\u2212", '-') );
 852         return ( isNaN( num ) ? -Infinity : num );
 853 }
 854
 855 function ts_currencyToSortKey( s ) {
 856         return ts_parseFloat(s.replace(/[^-\u22120-9.,]/g,''));
 857 }
 858
 859 function ts_sort_generic( a, b ) {
 860         return a[1] < b[1] ? -1 : a[1] > b[1] ? 1 : a[2] - b[2];
 861 }
 862
 863 function ts_alternate( table ) {
 864         // Take object table and get all it's tbodies.
 865         var tableBodies = table.getElementsByTagName( 'tbody' );
 866         // Loop through these tbodies
 867         for ( var i = 0; i < tableBodies.length; i++ ) {
 868                 // Take the tbody, and get all it's rows
 869                 var tableRows = tableBodies[i].getElementsByTagName( 'tr' );
 870                 // Loop through these rows
 871                 // Start at 1 because we want to leave the heading row untouched
 872                 for ( var j = 0; j < tableRows.length; j++ ) {
 873                         // Check if j is even, and apply classes for both possible results
 874                         var oldClasses = tableRows[j].className.split(' ');
 875                         var newClassName = '';
 876                         for ( var k = 0; k < oldClasses.length; k++ ) {
 877                                 if ( oldClasses[k] != '' && oldClasses[k] != 'even' && oldClasses[k] != 'odd' ) {
 878                                         newClassName += oldClasses[k] + ' ';
 879                                 }
 880                         }
 881                         tableRows[j].className = newClassName + ( j % 2 == 0 ? 'even' : 'odd' );
 882                 }
 883         }
 884 }
 885
 886 /*
 887  * End of table sorting code
 888  */
 889
 890
 891 /**
 892  * Add a cute little box at the top of the screen to inform the user of
 893  * something, replacing any preexisting message.
 894  *
 895  * @param String -or- Dom Object message HTML to be put inside the right div
 896  * @param String className   Used in adding a class; should be different for each
 897  *   call to allow CSS/JS to hide different boxes.  null = no class used.
 898  * @return Boolean       True on success, false on failure
 899  */
 900 function jsMsg( message, className ) {
 901         if ( !document.getElementById ) {
 902                 return false;
 903         }
 904         // We special-case skin structures provided by the software.  Skins that
 905         // choose to abandon or significantly modify our formatting can just define
 906         // an mw-js-message div to start with.
 907         var messageDiv = document.getElementById( 'mw-js-message' );
 908         if ( !messageDiv ) {
 909                 messageDiv = document.createElement( 'div' );
 910                 if ( document.getElementById( 'column-content' )
 911                 && document.getElementById( 'content' ) ) {
 912                         // MonoBook, presumably
 913                         document.getElementById( 'content' ).insertBefore(
 914                                 messageDiv,
 915                                 document.getElementById( 'content' ).firstChild
 916                         );
 917                 } else if ( document.getElementById( 'content' )
 918                 && document.getElementById( 'article' ) ) {
 919                         // Non-Monobook but still recognizable (old-style)
 920                         document.getElementById( 'article').insertBefore(
 921                                 messageDiv,
 922                                 document.getElementById( 'article' ).firstChild
 923                         );
 924                 } else {
 925                         return false;
 926                 }
 927         }
 928
 929         messageDiv.setAttribute( 'id', 'mw-js-message' );
 930         messageDiv.style.display = 'block';
 931         if( className ) {
 932                 messageDiv.setAttribute( 'class', 'mw-js-message-' + className );
 933         }
 934
 935         if ( typeof message === 'object' ) {
 936                 while ( messageDiv.hasChildNodes() ) { // Remove old content
 937                         messageDiv.removeChild( messageDiv.firstChild );
 938                 }
 939                 messageDiv.appendChild( message ); // Append new content
 940         } else {
 941                 messageDiv.innerHTML = message;
 942         }
 943         return true;
 944 }
 945
 946 /**
 947  * Inject a cute little progress spinner after the specified element
 948  *
 949  * @param element Element to inject after
 950  * @param id Identifier string (for use with removeSpinner(), below)
 951  */
 952 function injectSpinner( element, id ) {
 953         var spinner = document.createElement( 'img' );
 954         spinner.id = 'mw-spinner-' + id;
 955         spinner.src = stylepath + '/common/images/spinner.gif';
 956         spinner.alt = spinner.title = '...';
 957         if( element.nextSibling ) {
 958                 element.parentNode.insertBefore( spinner, element.nextSibling );
 959         } else {
 960                 element.parentNode.appendChild( spinner );
 961         }
 962 }
 963
 964 /**
 965  * Remove a progress spinner added with injectSpinner()
 966  *
 967  * @param id Identifier string
 968  */
 969 function removeSpinner( id ) {
 970         var spinner = document.getElementById( 'mw-spinner-' + id );
 971         if( spinner ) {
 972                 spinner.parentNode.removeChild( spinner );
 973         }
 974 }
 975
 976 function runOnloadHook() {
 977         // don't run anything below this for non-dom browsers
 978         if ( doneOnloadHook || !( document.getElementById && document.getElementsByTagName ) ) {
 979                 return;
 980         }
 981
 982         // set this before running any hooks, since any errors below
 983         // might cause the function to terminate prematurely
 984         doneOnloadHook = true;
 985
 986         updateTooltipAccessKeys( null );
 987         setupCheckboxShiftClick();
 988         sortables_init();
 989
 990         // Run any added-on functions
 991         for ( var i = 0; i < onloadFuncts.length; i++ ) {
 992                 onloadFuncts[i]();
 993         }
 994 }
 995
 996 /**
 997  * Add an event handler to an element
 998  *
 999  * @param Element element Element to add handler to
1000  * @param String attach Event to attach to
1001  * @param callable handler Event handler callback
1002  */
1003 function addHandler( element, attach, handler ) {
1004         if( window.addEventListener ) {
1005                 element.addEventListener( attach, handler, false );
1006         } else if( window.attachEvent ) {
1007                 element.attachEvent( 'on' + attach, handler );
1008         }
1009 }
1010
1011 /**
1012  * Add a click event handler to an element
1013  *
1014  * @param Element element Element to add handler to
1015  * @param callable handler Event handler callback
1016  */
1017 function addClickHandler( element, handler ) {
1018         addHandler( element, 'click', handler );
1019 }
1020
1021 /**
1022  * Removes an event handler from an element
1023  *
1024  * @param Element element Element to remove handler from
1025  * @param String remove Event to remove
1026  * @param callable handler Event handler callback to remove
1027  */
1028 function removeHandler( element, remove, handler ) {
1029         if( window.removeEventListener ) {
1030                 element.removeEventListener( remove, handler, false );
1031         } else if( window.detachEvent ) {
1032                 element.detachEvent( 'on' + remove, handler );
1033         }
1034 }
1035 // note: all skins should call runOnloadHook() at the end of html output,
1036 //      so the below should be redundant. It's there just in case.
1037 hookEvent( 'load', runOnloadHook );
1038
1039 if ( ie6_bugs ) {
1040         importScriptURI( stylepath + '/common/IEFixes.js' );
1041 }
1042
1043 // For future use.
1044 mw = {};
1045
1046