Merge "Satisfy code analyzer by ensuring $urls is defined"
[mediawiki.git] / resources / jquery / jquery.tablesorter.js
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1 /**
2  * TableSorter for MediaWiki
3  *
4  * Written 2011 Leo Koppelkamm
5  * Based on tablesorter.com plugin, written (c) 2007 Christian Bach.
6  *
7  * Dual licensed under the MIT and GPL licenses:
8  * http://www.opensource.org/licenses/mit-license.php
9  * http://www.gnu.org/licenses/gpl.html
10  *
11  * Depends on mw.config (wgDigitTransformTable, wgDefaultDateFormat, wgContentLanguage)
12  * and mw.language.months.
13  *
14  * Uses 'tableSorterCollation' in mw.config (if available)
15  */
16 /**
17  *
18  * @description Create a sortable table with multi-column sorting capabilitys
19  *
20  * @example $( 'table' ).tablesorter();
21  * @desc Create a simple tablesorter interface.
22  *
23  * @example $( 'table' ).tablesorter( { sortList: [ { 0: 'desc' }, { 1: 'asc' } ] } );
24  * @desc Create a tablesorter interface initially sorting on the first and second column.
25  *
26  * @option String cssHeader ( optional ) A string of the class name to be appended
27  *         to sortable tr elements in the thead of the table. Default value:
28  *         "header"
29  *
30  * @option String cssAsc ( optional ) A string of the class name to be appended to
31  *         sortable tr elements in the thead on a ascending sort. Default value:
32  *         "headerSortUp"
33  *
34  * @option String cssDesc ( optional ) A string of the class name to be appended
35  *         to sortable tr elements in the thead on a descending sort. Default
36  *         value: "headerSortDown"
37  *
38  * @option String sortInitialOrder ( optional ) A string of the inital sorting
39  *         order can be asc or desc. Default value: "asc"
40  *
41  * @option String sortMultisortKey ( optional ) A string of the multi-column sort
42  *         key. Default value: "shiftKey"
43  *
44  * @option Boolean sortLocaleCompare ( optional ) Boolean flag indicating whatever
45  *         to use String.localeCampare method or not. Set to false.
46  *
47  * @option Boolean cancelSelection ( optional ) Boolean flag indicating if
48  *         tablesorter should cancel selection of the table headers text.
49  *         Default value: true
50  *
51  * @option Array sortList ( optional ) An array containing objects specifying sorting.
52  *         By passing more than one object, multi-sorting will be applied. Object structure:
53  *         { <Integer column index>: <String 'asc' or 'desc'> }
54  *         Default value: []
55  *
56  * @option Boolean debug ( optional ) Boolean flag indicating if tablesorter
57  *         should display debuging information usefull for development.
58  *
59  * @event sortEnd.tablesorter: Triggered as soon as any sorting has been applied.
60  *
61  * @type jQuery
62  *
63  * @name tablesorter
64  *
65  * @cat Plugins/Tablesorter
66  *
67  * @author Christian Bach/christian.bach@polyester.se
68  */
70 ( function ( $, mw ) {
71         /*jshint onevar:false */
73         /* Local scope */
75         var ts,
76                 parsers = [];
78         /* Parser utility functions */
80         function getParserById( name ) {
81                 var len = parsers.length;
82                 for ( var i = 0; i < len; i++ ) {
83                         if ( parsers[i].id.toLowerCase() === name.toLowerCase() ) {
84                                 return parsers[i];
85                         }
86                 }
87                 return false;
88         }
90         function getElementSortKey( node ) {
91                 var $node = $( node ),
92                         // Use data-sort-value attribute.
93                         // Use data() instead of attr() so that live value changes
94                         // are processed as well (bug 38152).
95                         data = $node.data( 'sortValue' );
97                 if ( data !== null && data !== undefined ) {
98                         // Cast any numbers or other stuff to a string, methods
99                         // like charAt, toLowerCase and split are expected.
100                         return String( data );
101                 } else {
102                         if ( !node ) {
103                                 return $node.text();
104                         } else if ( node.tagName.toLowerCase() === 'img' ) {
105                                 return $node.attr( 'alt' ) || ''; // handle undefined alt
106                         } else {
107                                 return $.map( $.makeArray( node.childNodes ), function( elem ) {
108                                         // 1 is for document.ELEMENT_NODE (the constant is undefined on old browsers)
109                                         if ( elem.nodeType === 1 ) {
110                                                 return getElementSortKey( elem );
111                                         } else {
112                                                 return $.text( elem );
113                                         }
114                                 } ).join( '' );
115                         }
116                 }
117         }
119         function detectParserForColumn( table, rows, cellIndex ) {
120                 var l = parsers.length,
121                         nodeValue,
122                         // Start with 1 because 0 is the fallback parser
123                         i = 1,
124                         rowIndex = 0,
125                         concurrent = 0,
126                         needed = ( rows.length > 4 ) ? 5 : rows.length;
128                 while ( i < l ) {
129                         if ( rows[rowIndex] && rows[rowIndex].cells[cellIndex] ) {
130                                 nodeValue = $.trim( getElementSortKey( rows[rowIndex].cells[cellIndex] ) );
131                         } else {
132                                 nodeValue = '';
133                         }
135                         if ( nodeValue !== '') {
136                                 if ( parsers[i].is( nodeValue, table ) ) {
137                                         concurrent++;
138                                         rowIndex++;
139                                         if ( concurrent >= needed ) {
140                                                 // Confirmed the parser for multiple cells, let's return it
141                                                 return parsers[i];
142                                         }
143                                 } else {
144                                         // Check next parser, reset rows
145                                         i++;
146                                         rowIndex = 0;
147                                         concurrent = 0;
148                                 }
149                         } else {
150                                 // Empty cell
151                                 rowIndex++;
152                                 if ( rowIndex > rows.length ) {
153                                         rowIndex = 0;
154                                         i++;
155                                 }
156                         }
157                 }
159                 // 0 is always the generic parser (text)
160                 return parsers[0];
161         }
163         function buildParserCache( table, $headers ) {
164                 var rows = table.tBodies[0].rows,
165                         sortType,
166                         parsers = [];
168                 if ( rows[0] ) {
170                         var cells = rows[0].cells,
171                                 len = cells.length,
172                                 i, parser;
174                         for ( i = 0; i < len; i++ ) {
175                                 parser = false;
176                                 sortType = $headers.eq( i ).data( 'sortType' );
177                                 if ( sortType !== undefined ) {
178                                         parser = getParserById( sortType );
179                                 }
181                                 if ( parser === false ) {
182                                         parser = detectParserForColumn( table, rows, i );
183                                 }
185                                 parsers.push( parser );
186                         }
187                 }
188                 return parsers;
189         }
191         /* Other utility functions */
193         function buildCache( table ) {
194                 var totalRows = ( table.tBodies[0] && table.tBodies[0].rows.length ) || 0,
195                         totalCells = ( table.tBodies[0].rows[0] && table.tBodies[0].rows[0].cells.length ) || 0,
196                         parsers = table.config.parsers,
197                         cache = {
198                                 row: [],
199                                 normalized: []
200                         };
202                 for ( var i = 0; i < totalRows; ++i ) {
204                         // Add the table data to main data array
205                         var $row = $( table.tBodies[0].rows[i] ),
206                                 cols = [];
208                         // if this is a child row, add it to the last row's children and
209                         // continue to the next row
210                         if ( $row.hasClass( table.config.cssChildRow ) ) {
211                                 cache.row[cache.row.length - 1] = cache.row[cache.row.length - 1].add( $row );
212                                 // go to the next for loop
213                                 continue;
214                         }
216                         cache.row.push( $row );
218                         for ( var j = 0; j < totalCells; ++j ) {
219                                 cols.push( parsers[j].format( getElementSortKey( $row[0].cells[j] ), table, $row[0].cells[j] ) );
220                         }
222                         cols.push( cache.normalized.length ); // add position for rowCache
223                         cache.normalized.push( cols );
224                         cols = null;
225                 }
227                 return cache;
228         }
230         function appendToTable( table, cache ) {
231                 var row = cache.row,
232                         normalized = cache.normalized,
233                         totalRows = normalized.length,
234                         checkCell = ( normalized[0].length - 1 ),
235                         fragment = document.createDocumentFragment();
237                 for ( var i = 0; i < totalRows; i++ ) {
238                         var pos = normalized[i][checkCell];
240                         var l = row[pos].length;
242                         for ( var j = 0; j < l; j++ ) {
243                                 fragment.appendChild( row[pos][j] );
244                         }
246                 }
247                 table.tBodies[0].appendChild( fragment );
249                 $( table ).trigger( 'sortEnd.tablesorter' );
250         }
252         /**
253          * Find all header rows in a thead-less table and put them in a <thead> tag.
254          * This only treats a row as a header row if it contains only <th>s (no <td>s)
255          * and if it is preceded entirely by header rows. The algorithm stops when
256          * it encounters the first non-header row.
257          *
258          * After this, it will look at all rows at the bottom for footer rows
259          * And place these in a tfoot using similar rules.
260          * @param $table jQuery object for a <table>
261          */
262         function emulateTHeadAndFoot( $table ) {
263                 var $rows = $table.find( '> tbody > tr' );
264                 if( !$table.get(0).tHead ) {
265                         var $thead = $( '<thead>' );
266                         $rows.each( function () {
267                                 if ( $(this).children( 'td' ).length > 0 ) {
268                                         // This row contains a <td>, so it's not a header row
269                                         // Stop here
270                                         return false;
271                                 }
272                                 $thead.append( this );
273                         } );
274                         $table.find(' > tbody:first').before( $thead );
275                 }
276                 if( !$table.get(0).tFoot ) {
277                         var $tfoot = $( '<tfoot>' );
278                         var len = $rows.length;
279                         for ( var i = len-1; i >= 0; i-- ) {
280                                 if( $( $rows[i] ).children( 'td' ).length > 0 ){
281                                         break;
282                                 }
283                                 $tfoot.prepend( $( $rows[i] ));
284                         }
285                         $table.append( $tfoot );
286                 }
287         }
289         function buildHeaders( table, msg ) {
290                 var maxSeen = 0,
291                         colspanOffset = 0,
292                         longest,
293                         columns,
294                         i,
295                         $tableHeaders = $( [] ),
296                         $tableRows = $( 'thead:eq(0) > tr', table );
297                 if ( $tableRows.length <= 1 ) {
298                         $tableHeaders = $tableRows.children( 'th' );
299                 } else {
300                         // We need to find the cells of the row containing the most columns
301                         var rowspan,
302                                 headersIndex = [];
303                         $tableRows.each( function ( rowIndex ) {
304                                 $.each( this.cells, function( index2, cell ) {
305                                         rowspan = Number( cell.rowSpan );
306                                         for ( i = 0; i < rowspan; i++ ) {
307                                                 if ( headersIndex[rowIndex+i] === undefined ) {
308                                                         headersIndex[rowIndex+i] = $( [] );
309                                                 }
310                                                 headersIndex[rowIndex+i].push( cell );
311                                         }
312                                 } );
313                         } );
314                         $.each( headersIndex, function ( index, cellArray ) {
315                                 if ( cellArray.length >= maxSeen ) {
316                                         maxSeen = cellArray.length;
317                                         longest = index;
318                                 }
319                         } );
320                         $tableHeaders = headersIndex[longest];
321                 }
323                 // as each header can span over multiple columns (using colspan=N),
324                 // we have to bidirectionally map headers to their columns and columns to their headers
325                 table.headerToColumns = [];
326                 table.columnToHeader = [];
328                 $tableHeaders.each( function ( headerIndex ) {
329                         columns = [];
330                         for ( i = 0; i < this.colSpan; i++ ) {
331                                 table.columnToHeader[ colspanOffset + i ] = headerIndex;
332                                 columns.push( colspanOffset + i );
333                         }
335                         table.headerToColumns[ headerIndex ] = columns;
336                         colspanOffset += this.colSpan;
338                         this.headerIndex = headerIndex;
339                         this.order = 0;
340                         this.count = 0;
342                         if ( $( this ).hasClass( table.config.unsortableClass ) ) {
343                                 this.sortDisabled = true;
344                         }
346                         if ( !this.sortDisabled ) {
347                                 $( this )
348                                         .addClass( table.config.cssHeader )
349                                         .prop( 'tabIndex', 0 )
350                                         .attr( {
351                                                 role: 'columnheader button',
352                                                 title: msg[1]
353                                         } );
354                         }
356                         // add cell to headerList
357                         table.config.headerList[headerIndex] = this;
358                 } );
360                 return $tableHeaders;
362         }
364         /**
365          * Sets the sort count of the columns that are not affected by the sorting to have them sorted
366          * in default (ascending) order when their header cell is clicked the next time.
367          *
368          * @param {jQuery} $headers
369          * @param {Number[][]} sortList
370          * @param {Number[][]} headerToColumns
371          */
372         function setHeadersOrder( $headers, sortList, headerToColumns ) {
373                 // Loop through all headers to retrieve the indices of the columns the header spans across:
374                 $.each( headerToColumns, function( headerIndex, columns ) {
376                         $.each( columns, function( i, columnIndex ) {
377                                 var header = $headers[headerIndex];
379                                 if ( !isValueInArray( columnIndex, sortList ) ) {
380                                         // Column shall not be sorted: Reset header count and order.
381                                         header.order = 0;
382                                         header.count = 0;
383                                 } else {
384                                         // Column shall be sorted: Apply designated count and order.
385                                         $.each( sortList, function( j, sortColumn ) {
386                                                 if ( sortColumn[0] === i ) {
387                                                         header.order = sortColumn[1];
388                                                         header.count = sortColumn[1] + 1;
389                                                         return false;
390                                                 }
391                                         } );
392                                 }
393                         } );
395                 } );
396         }
398         function isValueInArray( v, a ) {
399                 var l = a.length;
400                 for ( var i = 0; i < l; i++ ) {
401                         if ( a[i][0] === v ) {
402                                 return true;
403                         }
404                 }
405                 return false;
406         }
408         function setHeadersCss( table, $headers, list, css, msg, columnToHeader ) {
409                 // Remove all header information and reset titles to default message
410                 $headers.removeClass( css[0] ).removeClass( css[1] ).attr( 'title', msg[1] );
412                 for ( var i = 0; i < list.length; i++ ) {
413                         $headers.eq( columnToHeader[ list[i][0] ] )
414                                 .addClass( css[ list[i][1] ] )
415                                 .attr( 'title', msg[ list[i][1] ] );
416                 }
417         }
419         function sortText( a, b ) {
420                 return ( (a < b) ? -1 : ((a > b) ? 1 : 0) );
421         }
423         function sortTextDesc( a, b ) {
424                 return ( (b < a) ? -1 : ((b > a) ? 1 : 0) );
425         }
427         function multisort( table, sortList, cache ) {
428                 var sortFn = [];
429                 var len = sortList.length;
430                 for ( var i = 0; i < len; i++ ) {
431                         sortFn[i] = ( sortList[i][1] ) ? sortTextDesc : sortText;
432                 }
433                 cache.normalized.sort( function ( array1, array2 ) {
434                         var col, ret;
435                         for ( var i = 0; i < len; i++ ) {
436                                 col = sortList[i][0];
437                                 ret = sortFn[i].call( this, array1[col], array2[col] );
438                                 if ( ret !== 0 ) {
439                                         return ret;
440                                 }
441                         }
442                         // Fall back to index number column to ensure stable sort
443                         return sortText.call( this, array1[array1.length - 1], array2[array2.length - 1] );
444                 } );
445                 return cache;
446         }
448         function buildTransformTable() {
449                 var digits = '0123456789,.'.split( '' );
450                 var separatorTransformTable = mw.config.get( 'wgSeparatorTransformTable' );
451                 var digitTransformTable = mw.config.get( 'wgDigitTransformTable' );
452                 if ( separatorTransformTable === null || ( separatorTransformTable[0] === '' && digitTransformTable[2] === '' ) ) {
453                         ts.transformTable = false;
454                 } else {
455                         ts.transformTable = {};
457                         // Unpack the transform table
458                         var ascii = separatorTransformTable[0].split( '\t' ).concat( digitTransformTable[0].split( '\t' ) );
459                         var localised = separatorTransformTable[1].split( '\t' ).concat( digitTransformTable[1].split( '\t' ) );
461                         // Construct regex for number identification
462                         for ( var i = 0; i < ascii.length; i++ ) {
463                                 ts.transformTable[localised[i]] = ascii[i];
464                                 digits.push( $.escapeRE( localised[i] ) );
465                         }
466                 }
467                 var digitClass = '[' + digits.join( '', digits ) + ']';
469                 // We allow a trailing percent sign, which we just strip. This works fine
470                 // if percents and regular numbers aren't being mixed.
471                 ts.numberRegex = new RegExp('^(' + '[-+\u2212]?[0-9][0-9,]*(\\.[0-9,]*)?(E[-+\u2212]?[0-9][0-9,]*)?' + // Fortran-style scientific
472                 '|' + '[-+\u2212]?' + digitClass + '+[\\s\\xa0]*%?' + // Generic localised
473                 ')$', 'i');
474         }
476         function buildDateTable() {
477                 var regex = [];
478                 ts.monthNames = {};
480                 for ( var i = 0; i < 12; i++ ) {
481                         var name = mw.language.months.names[i].toLowerCase();
482                         ts.monthNames[name] = i + 1;
483                         regex.push( $.escapeRE( name ) );
484                         name = mw.language.months.genitive[i].toLowerCase();
485                         ts.monthNames[name] = i + 1;
486                         regex.push( $.escapeRE( name ) );
487                         name = mw.language.months.abbrev[i].toLowerCase().replace( '.', '' );
488                         ts.monthNames[name] = i + 1;
489                         regex.push( $.escapeRE( name ) );
490                 }
492                 // Build piped string
493                 regex = regex.join( '|' );
495                 // Build RegEx
496                 // Any date formated with . , ' - or /
497                 ts.dateRegex[0] = new RegExp( /^\s*(\d{1,2})[\,\.\-\/'\s]{1,2}(\d{1,2})[\,\.\-\/'\s]{1,2}(\d{2,4})\s*?/i);
499                 // Written Month name, dmy
500                 ts.dateRegex[1] = new RegExp( '^\\s*(\\d{1,2})[\\,\\.\\-\\/\'\\s]+(' + regex + ')' + '[\\,\\.\\-\\/\'\\s]+(\\d{2,4})\\s*$', 'i' );
502                 // Written Month name, mdy
503                 ts.dateRegex[2] = new RegExp( '^\\s*(' + regex + ')' + '[\\,\\.\\-\\/\'\\s]+(\\d{1,2})[\\,\\.\\-\\/\'\\s]+(\\d{2,4})\\s*$', 'i' );
505         }
507         /**
508          * Replace all rowspanned cells in the body with clones in each row, so sorting
509          * need not worry about them.
510          *
511          * @param $table jQuery object for a <table>
512          */
513         function explodeRowspans( $table ) {
514                 var rowspanCells = $table.find( '> tbody > tr > [rowspan]' ).get();
516                 // Short circuit
517                 if ( !rowspanCells.length ) {
518                         return;
519                 }
521                 // First, we need to make a property like cellIndex but taking into
522                 // account colspans. We also cache the rowIndex to avoid having to take
523                 // cell.parentNode.rowIndex in the sorting function below.
524                 $table.find( '> tbody > tr' ).each( function () {
525                         var col = 0;
526                         var l = this.cells.length;
527                         for ( var i = 0; i < l; i++ ) {
528                                 this.cells[i].realCellIndex = col;
529                                 this.cells[i].realRowIndex = this.rowIndex;
530                                 col += this.cells[i].colSpan;
531                         }
532                 } );
534                 // Split multi row cells into multiple cells with the same content.
535                 // Sort by column then row index to avoid problems with odd table structures.
536                 // Re-sort whenever a rowspanned cell's realCellIndex is changed, because it
537                 // might change the sort order.
538                 function resortCells() {
539                         rowspanCells = rowspanCells.sort( function ( a, b ) {
540                                 var ret = a.realCellIndex - b.realCellIndex;
541                                 if ( !ret ) {
542                                         ret = a.realRowIndex - b.realRowIndex;
543                                 }
544                                 return ret;
545                         } );
546                         $.each( rowspanCells, function () {
547                                 this.needResort = false;
548                         } );
549                 }
550                 resortCells();
552                 var spanningRealCellIndex, rowSpan, colSpan;
553                 function filterfunc() {
554                         return this.realCellIndex >= spanningRealCellIndex;
555                 }
557                 function fixTdCellIndex() {
558                         this.realCellIndex += colSpan;
559                         if ( this.rowSpan > 1 ) {
560                                 this.needResort = true;
561                         }
562                 }
564                 while ( rowspanCells.length ) {
565                         if ( rowspanCells[0].needResort ) {
566                                 resortCells();
567                         }
569                         var cell = rowspanCells.shift();
570                         rowSpan = cell.rowSpan;
571                         colSpan = cell.colSpan;
572                         spanningRealCellIndex = cell.realCellIndex;
573                         cell.rowSpan = 1;
574                         var $nextRows = $( cell ).parent().nextAll();
575                         for ( var i = 0; i < rowSpan - 1; i++ ) {
576                                 var $tds = $( $nextRows[i].cells ).filter( filterfunc );
577                                 var $clone = $( cell ).clone();
578                                 $clone[0].realCellIndex = spanningRealCellIndex;
579                                 if ( $tds.length ) {
580                                         $tds.each( fixTdCellIndex );
581                                         $tds.first().before( $clone );
582                                 } else {
583                                         $nextRows.eq( i ).append( $clone );
584                                 }
585                         }
586                 }
587         }
589         function buildCollationTable() {
590                 ts.collationTable = mw.config.get( 'tableSorterCollation' );
591                 ts.collationRegex = null;
592                 if ( ts.collationTable ) {
593                         var keys = [];
595                         // Build array of key names
596                         for ( var key in ts.collationTable ) {
597                                 if ( ts.collationTable.hasOwnProperty(key) ) { //to be safe
598                                         keys.push(key);
599                                 }
600                         }
601                         if (keys.length) {
602                                 ts.collationRegex = new RegExp( '[' + keys.join( '' ) + ']', 'ig' );
603                         }
604                 }
605         }
607         function cacheRegexs() {
608                 if ( ts.rgx ) {
609                         return;
610                 }
611                 ts.rgx = {
612                         IPAddress: [
613                                 new RegExp( /^\d{1,3}[\.]\d{1,3}[\.]\d{1,3}[\.]\d{1,3}$/)
614                         ],
615                         currency: [
616                                 new RegExp( /(^[£$€¥]|[£$€¥]$)/),
617                                 new RegExp( /[£$€¥]/g)
618                         ],
619                         url: [
620                                 new RegExp( /^(https?|ftp|file):\/\/$/),
621                                 new RegExp( /(https?|ftp|file):\/\//)
622                         ],
623                         isoDate: [
624                                 new RegExp( /^\d{4}[\/\-]\d{1,2}[\/\-]\d{1,2}$/)
625                         ],
626                         usLongDate: [
627                                 new RegExp( /^[A-Za-z]{3,10}\.? [0-9]{1,2}, ([0-9]{4}|'?[0-9]{2}) (([0-2]?[0-9]:[0-5][0-9])|([0-1]?[0-9]:[0-5][0-9]\s(AM|PM)))$/)
628                         ],
629                         time: [
630                                 new RegExp( /^(([0-2]?[0-9]:[0-5][0-9])|([0-1]?[0-9]:[0-5][0-9]\s(am|pm)))$/)
631                         ]
632                 };
633         }
635         /**
636          * Converts sort objects [ { Integer: String }, ... ] to the internally used nested array
637          * structure [ [ Integer , Integer ], ... ]
638          *
639          * @param sortObjects {Array} List of sort objects.
640          * @return {Array} List of internal sort definitions.
641          */
643         function convertSortList( sortObjects ) {
644                 var sortList = [];
645                 $.each( sortObjects, function( i, sortObject ) {
646                         $.each ( sortObject, function( columnIndex, order ) {
647                                 var orderIndex = ( order === 'desc' ) ? 1 : 0;
648                                 sortList.push( [parseInt( columnIndex, 10 ), orderIndex] );
649                         } );
650                 } );
651                 return sortList;
652         }
654         /* Public scope */
656         $.tablesorter = {
658                         defaultOptions: {
659                                 cssHeader: 'headerSort',
660                                 cssAsc: 'headerSortUp',
661                                 cssDesc: 'headerSortDown',
662                                 cssChildRow: 'expand-child',
663                                 sortInitialOrder: 'asc',
664                                 sortMultiSortKey: 'shiftKey',
665                                 sortLocaleCompare: false,
666                                 unsortableClass: 'unsortable',
667                                 parsers: {},
668                                 widgets: [],
669                                 headers: {},
670                                 cancelSelection: true,
671                                 sortList: [],
672                                 headerList: [],
673                                 selectorHeaders: 'thead tr:eq(0) th',
674                                 debug: false
675                         },
677                         dateRegex: [],
678                         monthNames: {},
680                         /**
681                          * @param $tables {jQuery}
682                          * @param settings {Object} (optional)
683                          */
684                         construct: function ( $tables, settings ) {
685                                 return $tables.each( function ( i, table ) {
686                                         // Declare and cache.
687                                         var $headers, cache, config,
688                                                 $table = $( table ),
689                                                 firstTime = true;
691                                         // Quit if no tbody
692                                         if ( !table.tBodies ) {
693                                                 return;
694                                         }
695                                         if ( !table.tHead ) {
696                                                 // No thead found. Look for rows with <th>s and
697                                                 // move them into a <thead> tag or a <tfoot> tag
698                                                 emulateTHeadAndFoot( $table );
700                                                 // Still no thead? Then quit
701                                                 if ( !table.tHead ) {
702                                                         return;
703                                                 }
704                                         }
705                                         $table.addClass( 'jquery-tablesorter' );
707                                         // FIXME config should probably not be stored in the plain table node
708                                         // New config object.
709                                         table.config = {};
711                                         // Merge and extend.
712                                         config = $.extend( table.config, $.tablesorter.defaultOptions, settings );
714                                         // Save the settings where they read
715                                         $.data( table, 'tablesorter', { config: config } );
717                                         // Get the CSS class names, could be done else where.
718                                         var sortCSS = [ config.cssDesc, config.cssAsc ];
719                                         var sortMsg = [ mw.msg( 'sort-descending' ), mw.msg( 'sort-ascending' ) ];
721                                         // Build headers
722                                         $headers = buildHeaders( table, sortMsg );
724                                         // Grab and process locale settings.
725                                         buildTransformTable();
726                                         buildDateTable();
728                                         // Precaching regexps can bring 10 fold
729                                         // performance improvements in some browsers.
730                                         cacheRegexs();
732                                         function setupForFirstSort() {
733                                                 firstTime = false;
735                                                 // Defer buildCollationTable to first sort. As user and site scripts
736                                                 // may customize tableSorterCollation but load after $.ready(), other
737                                                 // scripts may call .tablesorter() before they have done the
738                                                 // tableSorterCollation customizations.
739                                                 buildCollationTable();
741                                                 // Legacy fix of .sortbottoms
742                                                 // Wrap them inside inside a tfoot (because that's what they actually want to be) &
743                                                 // and put the <tfoot> at the end of the <table>
744                                                 var $sortbottoms = $table.find( '> tbody > tr.sortbottom' );
745                                                 if ( $sortbottoms.length ) {
746                                                         var $tfoot = $table.children( 'tfoot' );
747                                                         if ( $tfoot.length ) {
748                                                                 $tfoot.eq(0).prepend( $sortbottoms );
749                                                         } else {
750                                                                 $table.append( $( '<tfoot>' ).append( $sortbottoms ) );
751                                                         }
752                                                 }
754                                                 explodeRowspans( $table );
756                                                 // try to auto detect column type, and store in tables config
757                                                 table.config.parsers = buildParserCache( table, $headers );
758                                         }
760                                         // Apply event handling to headers
761                                         // this is too big, perhaps break it out?
762                                         $headers.not( '.' + table.config.unsortableClass ).on( 'keypress click', function ( e ) {
763                                                 if ( e.type === 'click' && e.target.nodeName.toLowerCase() === 'a' ) {
764                                                         // The user clicked on a link inside a table header.
765                                                         // Do nothing and let the default link click action continue.
766                                                         return true;
767                                                 }
769                                                 if ( e.type === 'keypress' && e.which !== 13 ) {
770                                                         // Only handle keypresses on the "Enter" key.
771                                                         return true;
772                                                 }
774                                                 if ( firstTime ) {
775                                                         setupForFirstSort();
776                                                 }
778                                                 // Build the cache for the tbody cells
779                                                 // to share between calculations for this sort action.
780                                                 // Re-calculated each time a sort action is performed due to possiblity
781                                                 // that sort values change. Shouldn't be too expensive, but if it becomes
782                                                 // too slow an event based system should be implemented somehow where
783                                                 // cells get event .change() and bubbles up to the <table> here
784                                                 cache = buildCache( table );
786                                                 var totalRows = ( $table[0].tBodies[0] && $table[0].tBodies[0].rows.length ) || 0;
787                                                 if ( !table.sortDisabled && totalRows > 0 ) {
788                                                         // Get current column sort order
789                                                         this.order = this.count % 2;
790                                                         this.count++;
792                                                         var cell = this;
793                                                         // Get current column index
794                                                         var columns = table.headerToColumns[ this.headerIndex ];
795                                                         var newSortList = $.map( columns, function (c) {
796                                                                 // jQuery "helpfully" flattens the arrays...
797                                                                 return [[c, cell.order]];
798                                                         });
799                                                         // Index of first column belonging to this header
800                                                         var i = columns[0];
802                                                         if ( !e[config.sortMultiSortKey] ) {
803                                                                 // User only wants to sort on one column set
804                                                                 // Flush the sort list and add new columns
805                                                                 config.sortList = newSortList;
806                                                         } else {
807                                                                 // Multi column sorting
808                                                                 // It is not possible for one column to belong to multiple headers,
809                                                                 // so this is okay - we don't need to check for every value in the columns array
810                                                                 if ( isValueInArray( i, config.sortList ) ) {
811                                                                         // The user has clicked on an already sorted column.
812                                                                         // Reverse the sorting direction for all tables.
813                                                                         for ( var j = 0; j < config.sortList.length; j++ ) {
814                                                                                 var s = config.sortList[j],
815                                                                                         o = config.headerList[s[0]];
816                                                                                 if ( isValueInArray( s[0], newSortList ) ) {
817                                                                                         o.count = s[1];
818                                                                                         o.count++;
819                                                                                         s[1] = o.count % 2;
820                                                                                 }
821                                                                         }
822                                                                 } else {
823                                                                         // Add columns to sort list array
824                                                                         config.sortList = config.sortList.concat( newSortList );
825                                                                 }
826                                                         }
828                                                         // Reset order/counts of cells not affected by sorting
829                                                         setHeadersOrder( $headers, config.sortList, table.headerToColumns );
831                                                         // Set CSS for headers
832                                                         setHeadersCss( $table[0], $headers, config.sortList, sortCSS, sortMsg, table.columnToHeader );
833                                                         appendToTable(
834                                                                 $table[0], multisort( $table[0], config.sortList, cache )
835                                                         );
837                                                         // Stop normal event by returning false
838                                                         return false;
839                                                 }
841                                         // Cancel selection
842                                         } ).mousedown( function () {
843                                                 if ( config.cancelSelection ) {
844                                                         this.onselectstart = function () {
845                                                                 return false;
846                                                         };
847                                                         return false;
848                                                 }
849                                         } );
851                                         /**
852                                          * Sorts the table. If no sorting is specified by passing a list of sort
853                                          * objects, the table is sorted according to the initial sorting order.
854                                          * Passing an empty array will reset sorting (basically just reset the headers
855                                          * making the table appear unsorted).
856                                          *
857                                          * @param sortList {Array} (optional) List of sort objects.
858                                          */
859                                         $table.data( 'tablesorter' ).sort = function( sortList ) {
861                                                 if ( firstTime ) {
862                                                         setupForFirstSort();
863                                                 }
865                                                 if ( sortList === undefined ) {
866                                                         sortList = config.sortList;
867                                                 } else if ( sortList.length > 0 ) {
868                                                         sortList = convertSortList( sortList );
869                                                 }
871                                                 // Set each column's sort count to be able to determine the correct sort
872                                                 // order when clicking on a header cell the next time
873                                                 setHeadersOrder( $headers, sortList, table.headerToColumns );
875                                                 // re-build the cache for the tbody cells
876                                                 cache = buildCache( table );
878                                                 // set css for headers
879                                                 setHeadersCss( table, $headers, sortList, sortCSS, sortMsg, table.columnToHeader );
881                                                 // sort the table and append it to the dom
882                                                 appendToTable( table, multisort( table, sortList, cache ) );
883                                         };
885                                         // sort initially
886                                         if ( config.sortList.length > 0 ) {
887                                                 setupForFirstSort();
888                                                 config.sortList = convertSortList( config.sortList );
889                                                 $table.data( 'tablesorter' ).sort();
890                                         }
892                                 } );
893                         },
895                         addParser: function ( parser ) {
896                                 var l = parsers.length,
897                                         a = true;
898                                 for ( var i = 0; i < l; i++ ) {
899                                         if ( parsers[i].id.toLowerCase() === parser.id.toLowerCase() ) {
900                                                 a = false;
901                                         }
902                                 }
903                                 if ( a ) {
904                                         parsers.push( parser );
905                                 }
906                         },
908                         formatDigit: function ( s ) {
909                                 var out, c, p, i;
910                                 if ( ts.transformTable !== false ) {
911                                         out = '';
912                                         for ( p = 0; p < s.length; p++ ) {
913                                                 c = s.charAt(p);
914                                                 if ( c in ts.transformTable ) {
915                                                         out += ts.transformTable[c];
916                                                 } else {
917                                                         out += c;
918                                                 }
919                                         }
920                                         s = out;
921                                 }
922                                 i = parseFloat( s.replace( /[, ]/g, '' ).replace( '\u2212', '-' ) );
923                                 return isNaN( i ) ? 0 : i;
924                         },
926                         formatFloat: function ( s ) {
927                                 var i = parseFloat(s);
928                                 return isNaN( i ) ? 0 : i;
929                         },
931                         formatInt: function ( s ) {
932                                 var i = parseInt( s, 10 );
933                                 return isNaN( i ) ? 0 : i;
934                         },
936                         clearTableBody: function ( table ) {
937                                 $( table.tBodies[0] ).empty();
938                         }
939                 };
941         // Shortcut
942         ts = $.tablesorter;
944         // Register as jQuery prototype method
945         $.fn.tablesorter = function ( settings ) {
946                 return ts.construct( this, settings );
947         };
949         // Add default parsers
950         ts.addParser( {
951                 id: 'text',
952                 is: function () {
953                         return true;
954                 },
955                 format: function ( s ) {
956                         s = $.trim( s.toLowerCase() );
957                         if ( ts.collationRegex ) {
958                                 var tsc = ts.collationTable;
959                                 s = s.replace( ts.collationRegex, function ( match ) {
960                                         var r = tsc[match] ? tsc[match] : tsc[match.toUpperCase()];
961                                         return r.toLowerCase();
962                                 } );
963                         }
964                         return s;
965                 },
966                 type: 'text'
967         } );
969         ts.addParser( {
970                 id: 'IPAddress',
971                 is: function ( s ) {
972                         return ts.rgx.IPAddress[0].test(s);
973                 },
974                 format: function ( s ) {
975                         var a = s.split( '.' ),
976                                 r = '',
977                                 l = a.length;
978                         for ( var i = 0; i < l; i++ ) {
979                                 var item = a[i];
980                                 if ( item.length === 1 ) {
981                                         r += '00' + item;
982                                 } else if ( item.length === 2 ) {
983                                         r += '0' + item;
984                                 } else {
985                                         r += item;
986                                 }
987                         }
988                         return $.tablesorter.formatFloat(r);
989                 },
990                 type: 'numeric'
991         } );
993         ts.addParser( {
994                 id: 'currency',
995                 is: function ( s ) {
996                         return ts.rgx.currency[0].test(s);
997                 },
998                 format: function ( s ) {
999                         return $.tablesorter.formatDigit( s.replace( ts.rgx.currency[1], '' ) );
1000                 },
1001                 type: 'numeric'
1002         } );
1004         ts.addParser( {
1005                 id: 'url',
1006                 is: function ( s ) {
1007                         return ts.rgx.url[0].test(s);
1008                 },
1009                 format: function ( s ) {
1010                         return $.trim( s.replace( ts.rgx.url[1], '' ) );
1011                 },
1012                 type: 'text'
1013         } );
1015         ts.addParser( {
1016                 id: 'isoDate',
1017                 is: function ( s ) {
1018                         return ts.rgx.isoDate[0].test(s);
1019                 },
1020                 format: function ( s ) {
1021                         return $.tablesorter.formatFloat((s !== '') ? new Date(s.replace(
1022                         new RegExp( /-/g), '/')).getTime() : '0' );
1023                 },
1024                 type: 'numeric'
1025         } );
1027         ts.addParser( {
1028                 id: 'usLongDate',
1029                 is: function ( s ) {
1030                         return ts.rgx.usLongDate[0].test(s);
1031                 },
1032                 format: function ( s ) {
1033                         return $.tablesorter.formatFloat( new Date(s).getTime() );
1034                 },
1035                 type: 'numeric'
1036         } );
1038         ts.addParser( {
1039                 id: 'date',
1040                 is: function ( s ) {
1041                         return ( ts.dateRegex[0].test(s) || ts.dateRegex[1].test(s) || ts.dateRegex[2].test(s ));
1042                 },
1043                 format: function ( s ) {
1044                         var match;
1045                         s = $.trim( s.toLowerCase() );
1047                         if ( ( match = s.match( ts.dateRegex[0] ) ) !== null ) {
1048                                 if ( mw.config.get( 'wgDefaultDateFormat' ) === 'mdy' || mw.config.get( 'wgContentLanguage' ) === 'en' ) {
1049                                         s = [ match[3], match[1], match[2] ];
1050                                 } else if ( mw.config.get( 'wgDefaultDateFormat' ) === 'dmy' ) {
1051                                         s = [ match[3], match[2], match[1] ];
1052                                 } else {
1053                                         // If we get here, we don't know which order the dd-dd-dddd
1054                                         // date is in. So return something not entirely invalid.
1055                                         return '99999999';
1056                                 }
1057                         } else if ( ( match = s.match( ts.dateRegex[1] ) ) !== null ) {
1058                                 s = [ match[3], '' + ts.monthNames[match[2]], match[1] ];
1059                         } else if ( ( match = s.match( ts.dateRegex[2] ) ) !== null ) {
1060                                 s = [ match[3], '' + ts.monthNames[match[1]], match[2] ];
1061                         } else {
1062                                 // Should never get here
1063                                 return '99999999';
1064                         }
1066                         // Pad Month and Day
1067                         if ( s[1].length === 1 ) {
1068                                 s[1] = '0' + s[1];
1069                         }
1070                         if ( s[2].length === 1 ) {
1071                                 s[2] = '0' + s[2];
1072                         }
1074                         var y;
1075                         if ( ( y = parseInt( s[0], 10) ) < 100 ) {
1076                                 // Guestimate years without centuries
1077                                 if ( y < 30 ) {
1078                                         s[0] = 2000 + y;
1079                                 } else {
1080                                         s[0] = 1900 + y;
1081                                 }
1082                         }
1083                         while ( s[0].length < 4 ) {
1084                                 s[0] = '0' + s[0];
1085                         }
1086                         return parseInt( s.join( '' ), 10 );
1087                 },
1088                 type: 'numeric'
1089         } );
1091         ts.addParser( {
1092                 id: 'time',
1093                 is: function ( s ) {
1094                         return ts.rgx.time[0].test(s);
1095                 },
1096                 format: function ( s ) {
1097                         return $.tablesorter.formatFloat( new Date( '2000/01/01 ' + s ).getTime() );
1098                 },
1099                 type: 'numeric'
1100         } );
1102         ts.addParser( {
1103                 id: 'number',
1104                 is: function ( s ) {
1105                         return $.tablesorter.numberRegex.test( $.trim( s ));
1106                 },
1107                 format: function ( s ) {
1108                         return $.tablesorter.formatDigit(s);
1109                 },
1110                 type: 'numeric'
1111         } );
1113 }( jQuery, mediaWiki ) );