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[mediawiki.git] / resources / src / 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, wgPageContentLanguage)
12  * and mw.language.months.
13  *
14  * Uses 'tableSorterCollation' in mw.config (if available)
15  *
16  * Create a sortable table with multi-column sorting capabilities
17  *
18  *      // Create a simple tablesorter interface
19  *      $( 'table' ).tablesorter();
20  *
21  *      // Create a tablesorter interface, initially sorting on the first and second column
22  *      $( 'table' ).tablesorter( { sortList: [ { 0: 'desc' }, { 1: 'asc' } ] } );
23  *
24  * @param {string} [cssHeader="header"] A string of the class name to be appended to sortable
25  *         tr elements in the thead of the table.
26  *
27  * @param {string} [cssAsc="headerSortUp"] A string of the class name to be appended to
28  *         sortable tr elements in the thead on a ascending sort.
29  *
30  * @param {string} [cssDesc="headerSortDown"] A string of the class name to be appended to
31  *         sortable tr elements in the thead on a descending sort.
32  *
33  * @param {string} [sortMultisortKey="shiftKey"] A string of the multi-column sort key.
34  *
35  * @param {boolean} [cancelSelection=true] Boolean flag indicating iftablesorter should cancel
36  *         selection of the table headers text.
37  *
38  * @param {Array} [sortList] An array containing objects specifying sorting. By passing more
39  *         than one object, multi-sorting will be applied. Object structure:
40  *         { <Integer column index>: <String 'asc' or 'desc'> }
41  *
42  * @event sortEnd.tablesorter: Triggered as soon as any sorting has been applied.
43  *
44  * @author Christian Bach/christian.bach@polyester.se
45  */
46 ( function ( $, mw ) {
47         var ts,
48                 parsers = [];
50         /* Parser utility functions */
52         function getParserById( name ) {
53                 var i;
54                 for ( i = 0; i < parsers.length; i++ ) {
55                         if ( parsers[ i ].id.toLowerCase() === name.toLowerCase() ) {
56                                 return parsers[ i ];
57                         }
58                 }
59                 return false;
60         }
62         function getElementSortKey( node ) {
63                 var $node = $( node ),
64                         // Use data-sort-value attribute.
65                         // Use data() instead of attr() so that live value changes
66                         // are processed as well (bug 38152).
67                         data = $node.data( 'sortValue' );
69                 if ( data !== null && data !== undefined ) {
70                         // Cast any numbers or other stuff to a string, methods
71                         // like charAt, toLowerCase and split are expected.
72                         return String( data );
73                 }
74                 if ( !node ) {
75                         return $node.text();
76                 }
77                 if ( node.tagName.toLowerCase() === 'img' ) {
78                         return $node.attr( 'alt' ) || ''; // handle undefined alt
79                 }
80                 return $.map( $.makeArray( node.childNodes ), function ( elem ) {
81                         if ( elem.nodeType === Node.ELEMENT_NODE ) {
82                                 return getElementSortKey( elem );
83                         }
84                         return $.text( elem );
85                 } ).join( '' );
86         }
88         function detectParserForColumn( table, rows, column ) {
89                 var l = parsers.length,
90                         config = $( table ).data( 'tablesorter' ).config,
91                         cellIndex,
92                         nodeValue,
93                         // Start with 1 because 0 is the fallback parser
94                         i = 1,
95                         lastRowIndex = -1,
96                         rowIndex = 0,
97                         concurrent = 0,
98                         empty = 0,
99                         needed = ( rows.length > 4 ) ? 5 : rows.length;
101                 while ( i < l ) {
102                         // if this is a child row, continue to the next row (as buildCache())
103                         if ( rows[ rowIndex ] && !$( rows[ rowIndex ] ).hasClass( config.cssChildRow ) ) {
104                                 if ( rowIndex !== lastRowIndex ) {
105                                         lastRowIndex = rowIndex;
106                                         cellIndex = $( rows[ rowIndex ] ).data( 'columnToCell' )[ column ];
107                                         nodeValue = $.trim( getElementSortKey( rows[ rowIndex ].cells[ cellIndex ] ) );
108                                 }
109                         } else {
110                                 nodeValue = '';
111                         }
113                         if ( nodeValue !== '' ) {
114                                 if ( parsers[ i ].is( nodeValue, table ) ) {
115                                         concurrent++;
116                                         rowIndex++;
117                                         if ( concurrent >= needed ) {
118                                                 // Confirmed the parser for multiple cells, let's return it
119                                                 return parsers[ i ];
120                                         }
121                                 } else {
122                                         // Check next parser, reset rows
123                                         i++;
124                                         rowIndex = 0;
125                                         concurrent = 0;
126                                         empty = 0;
127                                 }
128                         } else {
129                                 // Empty cell
130                                 empty++;
131                                 rowIndex++;
132                                 if ( rowIndex >= rows.length ) {
133                                         if ( concurrent >= rows.length - empty ) {
134                                                 // Confirmed the parser for all filled cells
135                                                 return parsers[ i ];
136                                         }
137                                         // Check next parser, reset rows
138                                         i++;
139                                         rowIndex = 0;
140                                         concurrent = 0;
141                                         empty = 0;
142                                 }
143                         }
144                 }
146                 // 0 is always the generic parser (text)
147                 return parsers[ 0 ];
148         }
150         function buildParserCache( table, $headers ) {
151                 var sortType, len, j, parser,
152                         rows = table.tBodies[ 0 ].rows,
153                         config = $( table ).data( 'tablesorter' ).config,
154                         parsers = [];
156                 if ( rows[ 0 ] ) {
157                         len = config.columns;
158                         for ( j = 0; j < len; j++ ) {
159                                 parser = false;
160                                 sortType = $headers.eq( config.columnToHeader[ j ] ).data( 'sortType' );
161                                 if ( sortType !== undefined ) {
162                                         parser = getParserById( sortType );
163                                 }
165                                 if ( parser === false ) {
166                                         parser = detectParserForColumn( table, rows, j );
167                                 }
169                                 parsers.push( parser );
170                         }
171                 }
172                 return parsers;
173         }
175         /* Other utility functions */
177         function buildCache( table ) {
178                 var i, j, $row, cols,
179                         totalRows = ( table.tBodies[ 0 ] && table.tBodies[ 0 ].rows.length ) || 0,
180                         config = $( table ).data( 'tablesorter' ).config,
181                         parsers = config.parsers,
182                         len = parsers.length,
183                         cellIndex,
184                         cache = {
185                                 row: [],
186                                 normalized: []
187                         };
189                 for ( i = 0; i < totalRows; i++ ) {
191                         // Add the table data to main data array
192                         $row = $( table.tBodies[ 0 ].rows[ i ] );
193                         cols = [];
195                         // if this is a child row, add it to the last row's children and
196                         // continue to the next row
197                         if ( $row.hasClass( config.cssChildRow ) ) {
198                                 cache.row[ cache.row.length - 1 ] = cache.row[ cache.row.length - 1 ].add( $row );
199                                 // go to the next for loop
200                                 continue;
201                         }
203                         cache.row.push( $row );
205                         for ( j = 0; j < len; j++ ) {
206                                 cellIndex = $row.data( 'columnToCell' )[ j ];
207                                 cols.push( parsers[ j ].format( getElementSortKey( $row[ 0 ].cells[ cellIndex ] ) ) );
208                         }
210                         cols.push( cache.normalized.length ); // add position for rowCache
211                         cache.normalized.push( cols );
212                         cols = null;
213                 }
215                 return cache;
216         }
218         function appendToTable( table, cache ) {
219                 var i, pos, l, j,
220                         row = cache.row,
221                         normalized = cache.normalized,
222                         totalRows = normalized.length,
223                         checkCell = ( normalized[ 0 ].length - 1 ),
224                         fragment = document.createDocumentFragment();
226                 for ( i = 0; i < totalRows; i++ ) {
227                         pos = normalized[ i ][ checkCell ];
229                         l = row[ pos ].length;
230                         for ( j = 0; j < l; j++ ) {
231                                 fragment.appendChild( row[ pos ][ j ] );
232                         }
234                 }
235                 table.tBodies[ 0 ].appendChild( fragment );
237                 $( table ).trigger( 'sortEnd.tablesorter' );
238         }
240         /**
241          * Find all header rows in a thead-less table and put them in a <thead> tag.
242          * This only treats a row as a header row if it contains only <th>s (no <td>s)
243          * and if it is preceded entirely by header rows. The algorithm stops when
244          * it encounters the first non-header row.
245          *
246          * After this, it will look at all rows at the bottom for footer rows
247          * And place these in a tfoot using similar rules.
248          *
249          * @param {jQuery} $table object for a <table>
250          */
251         function emulateTHeadAndFoot( $table ) {
252                 var $thead, $tfoot, i, len,
253                         $rows = $table.find( '> tbody > tr' );
254                 if ( !$table.get( 0 ).tHead ) {
255                         $thead = $( '<thead>' );
256                         $rows.each( function () {
257                                 if ( $( this ).children( 'td' ).length ) {
258                                         // This row contains a <td>, so it's not a header row
259                                         // Stop here
260                                         return false;
261                                 }
262                                 $thead.append( this );
263                         } );
264                         $table.find( ' > tbody:first' ).before( $thead );
265                 }
266                 if ( !$table.get( 0 ).tFoot ) {
267                         $tfoot = $( '<tfoot>' );
268                         len = $rows.length;
269                         for ( i = len - 1; i >= 0; i-- ) {
270                                 if ( $( $rows[ i ] ).children( 'td' ).length ) {
271                                         break;
272                                 }
273                                 $tfoot.prepend( $( $rows[ i ] ) );
274                         }
275                         $table.append( $tfoot );
276                 }
277         }
279         function uniqueElements( array ) {
280                 var uniques = [];
281                 $.each( array, function ( i, elem ) {
282                         if ( elem !== undefined && $.inArray( elem, uniques ) === -1 ) {
283                                 uniques.push( elem );
284                         }
285                 } );
286                 return uniques;
287         }
289         function buildHeaders( table, msg ) {
290                 var config = $( table ).data( 'tablesorter' ).config,
291                         maxSeen = 0,
292                         colspanOffset = 0,
293                         columns,
294                         k,
295                         $cell,
296                         rowspan,
297                         colspan,
298                         headerCount,
299                         longestTR,
300                         headerIndex,
301                         exploded,
302                         $tableHeaders = $( [] ),
303                         $tableRows = $( 'thead:eq(0) > tr', table );
305                 if ( $tableRows.length <= 1 ) {
306                         $tableHeaders = $tableRows.children( 'th' );
307                 } else {
308                         exploded = [];
310                         // Loop through all the dom cells of the thead
311                         $tableRows.each( function ( rowIndex, row ) {
312                                 $.each( row.cells, function ( columnIndex, cell ) {
313                                         var matrixRowIndex,
314                                                 matrixColumnIndex;
316                                         rowspan = Number( cell.rowSpan );
317                                         colspan = Number( cell.colSpan );
319                                         // Skip the spots in the exploded matrix that are already filled
320                                         while ( exploded[ rowIndex ] && exploded[ rowIndex ][ columnIndex ] !== undefined ) {
321                                                 ++columnIndex;
322                                         }
324                                         // Find the actual dimensions of the thead, by placing each cell
325                                         // in the exploded matrix rowspan times colspan times, with the proper offsets
326                                         for ( matrixColumnIndex = columnIndex; matrixColumnIndex < columnIndex + colspan; ++matrixColumnIndex ) {
327                                                 for ( matrixRowIndex = rowIndex; matrixRowIndex < rowIndex + rowspan; ++matrixRowIndex ) {
328                                                         if ( !exploded[ matrixRowIndex ] ) {
329                                                                 exploded[ matrixRowIndex ] = [];
330                                                         }
331                                                         exploded[ matrixRowIndex ][ matrixColumnIndex ] = cell;
332                                                 }
333                                         }
334                                 } );
335                         } );
336                         // We want to find the row that has the most columns (ignoring colspan)
337                         $.each( exploded, function ( index, cellArray ) {
338                                 headerCount = $( uniqueElements( cellArray ) ).filter( 'th' ).length;
339                                 if ( headerCount >= maxSeen ) {
340                                         maxSeen = headerCount;
341                                         longestTR = index;
342                                 }
343                         } );
344                         // We cannot use $.unique() here because it sorts into dom order, which is undesirable
345                         $tableHeaders = $( uniqueElements( exploded[ longestTR ] ) ).filter( 'th' );
346                 }
348                 // as each header can span over multiple columns (using colspan=N),
349                 // we have to bidirectionally map headers to their columns and columns to their headers
350                 config.columnToHeader = [];
351                 config.headerToColumns = [];
352                 config.headerList = [];
353                 headerIndex = 0;
354                 $tableHeaders.each( function () {
355                         $cell = $( this );
356                         columns = [];
358                         if ( !$cell.hasClass( config.unsortableClass ) ) {
359                                 $cell
360                                         .addClass( config.cssHeader )
361                                         .prop( 'tabIndex', 0 )
362                                         .attr( {
363                                                 role: 'columnheader button',
364                                                 title: msg[ 1 ]
365                                         } );
367                                 for ( k = 0; k < this.colSpan; k++ ) {
368                                         config.columnToHeader[ colspanOffset + k ] = headerIndex;
369                                         columns.push( colspanOffset + k );
370                                 }
372                                 config.headerToColumns[ headerIndex ] = columns;
374                                 $cell.data( {
375                                         headerIndex: headerIndex,
376                                         order: 0,
377                                         count: 0
378                                 } );
380                                 // add only sortable cells to headerList
381                                 config.headerList[ headerIndex ] = this;
382                                 headerIndex++;
383                         }
385                         colspanOffset += this.colSpan;
386                 } );
388                 // number of columns with extended colspan, inclusive unsortable
389                 // parsers[j], cache[][j], columnToHeader[j], columnToCell[j] have so many elements
390                 config.columns = colspanOffset;
392                 return $tableHeaders.not( '.' + config.unsortableClass );
393         }
395         function isValueInArray( v, a ) {
396                 var i;
397                 for ( i = 0; i < a.length; i++ ) {
398                         if ( a[ i ][ 0 ] === v ) {
399                                 return true;
400                         }
401                 }
402                 return false;
403         }
405         /**
406          * Sets the sort count of the columns that are not affected by the sorting to have them sorted
407          * in default (ascending) order when their header cell is clicked the next time.
408          *
409          * @param {jQuery} $headers
410          * @param {number[][]} sortList
411          * @param {number[][]} headerToColumns
412          */
413         function setHeadersOrder( $headers, sortList, headerToColumns ) {
414                 // Loop through all headers to retrieve the indices of the columns the header spans across:
415                 $.each( headerToColumns, function ( headerIndex, columns ) {
417                         $.each( columns, function ( i, columnIndex ) {
418                                 var header = $headers[ headerIndex ],
419                                         $header = $( header );
421                                 if ( !isValueInArray( columnIndex, sortList ) ) {
422                                         // Column shall not be sorted: Reset header count and order.
423                                         $header.data( {
424                                                 order: 0,
425                                                 count: 0
426                                         } );
427                                 } else {
428                                         // Column shall be sorted: Apply designated count and order.
429                                         $.each( sortList, function ( j, sortColumn ) {
430                                                 if ( sortColumn[ 0 ] === i ) {
431                                                         $header.data( {
432                                                                 order: sortColumn[ 1 ],
433                                                                 count: sortColumn[ 1 ] + 1
434                                                         } );
435                                                         return false;
436                                                 }
437                                         } );
438                                 }
439                         } );
441                 } );
442         }
444         function setHeadersCss( table, $headers, list, css, msg, columnToHeader ) {
445                 // Remove all header information and reset titles to default message
446                 $headers.removeClass( css[ 0 ] ).removeClass( css[ 1 ] ).attr( 'title', msg[ 1 ] );
448                 for ( var i = 0; i < list.length; i++ ) {
449                         $headers
450                                 .eq( columnToHeader[ list[ i ][ 0 ] ] )
451                                 .addClass( css[ list[ i ][ 1 ] ] )
452                                 .attr( 'title', msg[ list[ i ][ 1 ] ] );
453                 }
454         }
456         function sortText( a, b ) {
457                 return ( ( a < b ) ? -1 : ( ( a > b ) ? 1 : 0 ) );
458         }
460         function sortTextDesc( a, b ) {
461                 return ( ( b < a ) ? -1 : ( ( b > a ) ? 1 : 0 ) );
462         }
464         function multisort( table, sortList, cache ) {
465                 var i,
466                         sortFn = [];
468                 for ( i = 0; i < sortList.length; i++ ) {
469                         sortFn[ i ] = ( sortList[ i ][ 1 ] ) ? sortTextDesc : sortText;
470                 }
471                 cache.normalized.sort( function ( array1, array2 ) {
472                         var i, col, ret;
473                         for ( i = 0; i < sortList.length; i++ ) {
474                                 col = sortList[ i ][ 0 ];
475                                 ret = sortFn[ i ].call( this, array1[ col ], array2[ col ] );
476                                 if ( ret !== 0 ) {
477                                         return ret;
478                                 }
479                         }
480                         // Fall back to index number column to ensure stable sort
481                         return sortText.call( this, array1[ array1.length - 1 ], array2[ array2.length - 1 ] );
482                 } );
483                 return cache;
484         }
486         function buildTransformTable() {
487                 var ascii, localised, i, digitClass,
488                         digits = '0123456789,.'.split( '' ),
489                         separatorTransformTable = mw.config.get( 'wgSeparatorTransformTable' ),
490                         digitTransformTable = mw.config.get( 'wgDigitTransformTable' );
492                 if ( separatorTransformTable === null || ( separatorTransformTable[ 0 ] === '' && digitTransformTable[ 2 ] === '' ) ) {
493                         ts.transformTable = false;
494                 } else {
495                         ts.transformTable = {};
497                         // Unpack the transform table
498                         ascii = separatorTransformTable[ 0 ].split( '\t' ).concat( digitTransformTable[ 0 ].split( '\t' ) );
499                         localised = separatorTransformTable[ 1 ].split( '\t' ).concat( digitTransformTable[ 1 ].split( '\t' ) );
501                         // Construct regexes for number identification
502                         for ( i = 0; i < ascii.length; i++ ) {
503                                 ts.transformTable[ localised[ i ] ] = ascii[ i ];
504                                 digits.push( mw.RegExp.escape( localised[ i ] ) );
505                         }
506                 }
507                 digitClass = '[' + digits.join( '', digits ) + ']';
509                 // We allow a trailing percent sign, which we just strip. This works fine
510                 // if percents and regular numbers aren't being mixed.
511                 ts.numberRegex = new RegExp( '^(' + '[-+\u2212]?[0-9][0-9,]*(\\.[0-9,]*)?(E[-+\u2212]?[0-9][0-9,]*)?' + // Fortran-style scientific
512                 '|' + '[-+\u2212]?' + digitClass + '+[\\s\\xa0]*%?' + // Generic localised
513                 ')$', 'i' );
514         }
516         function buildDateTable() {
517                 var i, name,
518                         regex = [];
520                 ts.monthNames = {};
522                 for ( i = 0; i < 12; i++ ) {
523                         name = mw.language.months.names[ i ].toLowerCase();
524                         ts.monthNames[ name ] = i + 1;
525                         regex.push( mw.RegExp.escape( name ) );
526                         name = mw.language.months.genitive[ i ].toLowerCase();
527                         ts.monthNames[ name ] = i + 1;
528                         regex.push( mw.RegExp.escape( name ) );
529                         name = mw.language.months.abbrev[ i ].toLowerCase().replace( '.', '' );
530                         ts.monthNames[ name ] = i + 1;
531                         regex.push( mw.RegExp.escape( name ) );
532                 }
534                 // Build piped string
535                 regex = regex.join( '|' );
537                 // Build RegEx
538                 // Any date formated with . , ' - or /
539                 ts.dateRegex[ 0 ] = new RegExp( /^\s*(\d{1,2})[\,\.\-\/'\s]{1,2}(\d{1,2})[\,\.\-\/'\s]{1,2}(\d{2,4})\s*?/i );
541                 // Written Month name, dmy
542                 ts.dateRegex[ 1 ] = new RegExp( '^\\s*(\\d{1,2})[\\,\\.\\-\\/\'\\s]+(' + regex + ')' + '[\\,\\.\\-\\/\'\\s]+(\\d{2,4})\\s*$', 'i' );
544                 // Written Month name, mdy
545                 ts.dateRegex[ 2 ] = new RegExp( '^\\s*(' + regex + ')' + '[\\,\\.\\-\\/\'\\s]+(\\d{1,2})[\\,\\.\\-\\/\'\\s]+(\\d{2,4})\\s*$', 'i' );
547         }
549         /**
550          * Replace all rowspanned cells in the body with clones in each row, so sorting
551          * need not worry about them.
552          *
553          * @param {jQuery} $table jQuery object for a <table>
554          */
555         function explodeRowspans( $table ) {
556                 var spanningRealCellIndex, rowSpan, colSpan,
557                         cell, cellData, i, $tds, $clone, $nextRows,
558                         rowspanCells = $table.find( '> tbody > tr > [rowspan]' ).get();
560                 // Short circuit
561                 if ( !rowspanCells.length ) {
562                         return;
563                 }
565                 // First, we need to make a property like cellIndex but taking into
566                 // account colspans. We also cache the rowIndex to avoid having to take
567                 // cell.parentNode.rowIndex in the sorting function below.
568                 $table.find( '> tbody > tr' ).each( function () {
569                         var i,
570                                 col = 0,
571                                 len = this.cells.length;
572                         for ( i = 0; i < len; i++ ) {
573                                 $( this.cells[ i ] ).data( 'tablesorter', {
574                                         realCellIndex: col,
575                                         realRowIndex: this.rowIndex
576                                 } );
577                                 col += this.cells[ i ].colSpan;
578                         }
579                 } );
581                 // Split multi row cells into multiple cells with the same content.
582                 // Sort by column then row index to avoid problems with odd table structures.
583                 // Re-sort whenever a rowspanned cell's realCellIndex is changed, because it
584                 // might change the sort order.
585                 function resortCells() {
586                         var cellAData,
587                                 cellBData,
588                                 ret;
589                         rowspanCells = rowspanCells.sort( function ( a, b ) {
590                                 cellAData = $.data( a, 'tablesorter' );
591                                 cellBData = $.data( b, 'tablesorter' );
592                                 ret = cellAData.realCellIndex - cellBData.realCellIndex;
593                                 if ( !ret ) {
594                                         ret = cellAData.realRowIndex - cellBData.realRowIndex;
595                                 }
596                                 return ret;
597                         } );
598                         $.each( rowspanCells, function () {
599                                 $.data( this, 'tablesorter' ).needResort = false;
600                         } );
601                 }
602                 resortCells();
604                 function filterfunc() {
605                         return $.data( this, 'tablesorter' ).realCellIndex >= spanningRealCellIndex;
606                 }
608                 function fixTdCellIndex() {
609                         $.data( this, 'tablesorter' ).realCellIndex += colSpan;
610                         if ( this.rowSpan > 1 ) {
611                                 $.data( this, 'tablesorter' ).needResort = true;
612                         }
613                 }
615                 while ( rowspanCells.length ) {
616                         if ( $.data( rowspanCells[ 0 ], 'tablesorter' ).needResort ) {
617                                 resortCells();
618                         }
620                         cell = rowspanCells.shift();
621                         cellData = $.data( cell, 'tablesorter' );
622                         rowSpan = cell.rowSpan;
623                         colSpan = cell.colSpan;
624                         spanningRealCellIndex = cellData.realCellIndex;
625                         cell.rowSpan = 1;
626                         $nextRows = $( cell ).parent().nextAll();
627                         for ( i = 0; i < rowSpan - 1; i++ ) {
628                                 $tds = $( $nextRows[ i ].cells ).filter( filterfunc );
629                                 $clone = $( cell ).clone();
630                                 $clone.data( 'tablesorter', {
631                                         realCellIndex: spanningRealCellIndex,
632                                         realRowIndex: cellData.realRowIndex + i,
633                                         needResort: true
634                                 } );
635                                 if ( $tds.length ) {
636                                         $tds.each( fixTdCellIndex );
637                                         $tds.first().before( $clone );
638                                 } else {
639                                         $nextRows.eq( i ).append( $clone );
640                                 }
641                         }
642                 }
643         }
645         /**
646          * Build index to handle colspanned cells in the body.
647          * Set the cell index for each column in an array,
648          * so that colspaned cells set multiple in this array.
649          * columnToCell[collumnIndex] point at the real cell in this row.
650          *
651          * @param {jQuery} $table object for a <table>
652          */
653         function manageColspans( $table ) {
654                 var i, j, k, $row,
655                         $rows = $table.find( '> tbody > tr' ),
656                         totalRows = $rows.length || 0,
657                         config = $table.data( 'tablesorter' ).config,
658                         columns = config.columns,
659                         columnToCell, cellsInRow, index;
661                 for ( i = 0; i < totalRows; i++ ) {
663                         $row = $rows.eq( i );
664                         // if this is a child row, continue to the next row (as buildCache())
665                         if ( $row.hasClass( config.cssChildRow ) ) {
666                                 // go to the next for loop
667                                 continue;
668                         }
670                         columnToCell = [];
671                         cellsInRow = ( $row[ 0 ].cells.length ) || 0;  // all cells in this row
672                         index = 0; // real cell index in this row
673                         for ( j = 0; j < columns; index++ ) {
674                                 if ( index === cellsInRow ) {
675                                         // Row with cells less than columns: add empty cell
676                                         $row.append( '<td>' );
677                                         cellsInRow++;
678                                 }
679                                 for ( k = 0; k < $row[ 0 ].cells[ index ].colSpan; k++ ) {
680                                         columnToCell[ j++ ] = index;
681                                 }
682                         }
683                         // Store it in $row
684                         $row.data( 'columnToCell', columnToCell );
685                 }
686         }
688         function buildCollationTable() {
689                 ts.collationTable = mw.config.get( 'tableSorterCollation' );
690                 ts.collationRegex = null;
691                 if ( ts.collationTable ) {
692                         var key,
693                                 keys = [];
695                         // Build array of key names
696                         for ( key in ts.collationTable ) {
697                                 // Check hasOwn to be safe
698                                 if ( ts.collationTable.hasOwnProperty( key ) ) {
699                                         keys.push( key );
700                                 }
701                         }
702                         if ( keys.length ) {
703                                 ts.collationRegex = new RegExp( '[' + keys.join( '' ) + ']', 'ig' );
704                         }
705                 }
706         }
708         function cacheRegexs() {
709                 if ( ts.rgx ) {
710                         return;
711                 }
712                 ts.rgx = {
713                         IPAddress: [
714                                 new RegExp( /^\d{1,3}[\.]\d{1,3}[\.]\d{1,3}[\.]\d{1,3}$/ )
715                         ],
716                         currency: [
717                                 new RegExp( /(^[£$€¥]|[£$€¥]$)/ ),
718                                 new RegExp( /[£$€¥]/g )
719                         ],
720                         url: [
721                                 new RegExp( /^(https?|ftp|file):\/\/$/ ),
722                                 new RegExp( /(https?|ftp|file):\/\// )
723                         ],
724                         isoDate: [
725                                 new RegExp( /^([-+]?\d{1,4})-([01]\d)-([0-3]\d)([T\s]((([01]\d|2[0-3])(:?[0-5]\d)?|24:?00)?(:?([0-5]\d|60))?([.,]\d+)?)([zZ]|([\+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?/ ),
726                                 new RegExp( /^([-+]?\d{1,4})-([01]\d)-([0-3]\d)/ )
727                         ],
728                         usLongDate: [
729                                 new RegExp( /^[A-Za-z]{3,10}\.? [0-9]{1,2}, ([0-9]{4}|'?[0-9]{2}) (([0-2]?[0-9]:[0-5][0-9])|([0-1]?[0-9]:[0-5][0-9]\s(AM|PM)))$/ )
730                         ],
731                         time: [
732                                 new RegExp( /^(([0-2]?[0-9]:[0-5][0-9])|([0-1]?[0-9]:[0-5][0-9]\s(am|pm)))$/ )
733                         ]
734                 };
735         }
737         /**
738          * Converts sort objects [ { Integer: String }, ... ] to the internally used nested array
739          * structure [ [ Integer , Integer ], ... ]
740          *
741          * @param {Array} sortObjects List of sort objects.
742          * @return {Array} List of internal sort definitions.
743          */
744         function convertSortList( sortObjects ) {
745                 var sortList = [];
746                 $.each( sortObjects, function ( i, sortObject ) {
747                         $.each( sortObject, function ( columnIndex, order ) {
748                                 var orderIndex = ( order === 'desc' ) ? 1 : 0;
749                                 sortList.push( [ parseInt( columnIndex, 10 ), orderIndex ] );
750                         } );
751                 } );
752                 return sortList;
753         }
755         /* Public scope */
757         $.tablesorter = {
758                         defaultOptions: {
759                                 cssHeader: 'headerSort',
760                                 cssAsc: 'headerSortUp',
761                                 cssDesc: 'headerSortDown',
762                                 cssChildRow: 'expand-child',
763                                 sortMultiSortKey: 'shiftKey',
764                                 unsortableClass: 'unsortable',
765                                 parsers: [],
766                                 cancelSelection: true,
767                                 sortList: [],
768                                 headerList: [],
769                                 headerToColumns: [],
770                                 columnToHeader: [],
771                                 columns: 0
772                         },
774                         dateRegex: [],
775                         monthNames: {},
777                         /**
778                          * @param {jQuery} $tables
779                          * @param {Object} [settings]
780                          */
781                         construct: function ( $tables, settings ) {
782                                 return $tables.each( function ( i, table ) {
783                                         // Declare and cache.
784                                         var $headers, cache, config, sortCSS, sortMsg,
785                                                 $table = $( table ),
786                                                 firstTime = true;
788                                         // Quit if no tbody
789                                         if ( !table.tBodies ) {
790                                                 return;
791                                         }
792                                         if ( !table.tHead ) {
793                                                 // No thead found. Look for rows with <th>s and
794                                                 // move them into a <thead> tag or a <tfoot> tag
795                                                 emulateTHeadAndFoot( $table );
797                                                 // Still no thead? Then quit
798                                                 if ( !table.tHead ) {
799                                                         return;
800                                                 }
801                                         }
802                                         $table.addClass( 'jquery-tablesorter' );
804                                         // Merge and extend
805                                         config = $.extend( {}, $.tablesorter.defaultOptions, settings );
807                                         // Save the settings where they read
808                                         $.data( table, 'tablesorter', { config: config } );
810                                         // Get the CSS class names, could be done elsewhere
811                                         sortCSS = [ config.cssDesc, config.cssAsc ];
812                                         sortMsg = [ mw.msg( 'sort-descending' ), mw.msg( 'sort-ascending' ) ];
814                                         // Build headers
815                                         $headers = buildHeaders( table, sortMsg );
817                                         // Grab and process locale settings.
818                                         buildTransformTable();
819                                         buildDateTable();
821                                         // Precaching regexps can bring 10 fold
822                                         // performance improvements in some browsers.
823                                         cacheRegexs();
825                                         function setupForFirstSort() {
826                                                 firstTime = false;
828                                                 // Defer buildCollationTable to first sort. As user and site scripts
829                                                 // may customize tableSorterCollation but load after $.ready(), other
830                                                 // scripts may call .tablesorter() before they have done the
831                                                 // tableSorterCollation customizations.
832                                                 buildCollationTable();
834                                                 // Legacy fix of .sortbottoms
835                                                 // Wrap them inside a tfoot (because that's what they actually want to be)
836                                                 // and put the <tfoot> at the end of the <table>
837                                                 var $tfoot,
838                                                         $sortbottoms = $table.find( '> tbody > tr.sortbottom' );
839                                                 if ( $sortbottoms.length ) {
840                                                         $tfoot = $table.children( 'tfoot' );
841                                                         if ( $tfoot.length ) {
842                                                                 $tfoot.eq( 0 ).prepend( $sortbottoms );
843                                                         } else {
844                                                                 $table.append( $( '<tfoot>' ).append( $sortbottoms ) );
845                                                         }
846                                                 }
848                                                 explodeRowspans( $table );
849                                                 manageColspans( $table );
851                                                 // Try to auto detect column type, and store in tables config
852                                                 config.parsers = buildParserCache( table, $headers );
853                                         }
855                                         // Apply event handling to headers
856                                         // this is too big, perhaps break it out?
857                                         $headers.on( 'keypress click', function ( e ) {
858                                                 var cell, $cell, columns, newSortList, i,
859                                                         totalRows,
860                                                         j, s, o;
862                                                 if ( e.type === 'click' && e.target.nodeName.toLowerCase() === 'a' ) {
863                                                         // The user clicked on a link inside a table header.
864                                                         // Do nothing and let the default link click action continue.
865                                                         return true;
866                                                 }
868                                                 if ( e.type === 'keypress' && e.which !== 13 ) {
869                                                         // Only handle keypresses on the "Enter" key.
870                                                         return true;
871                                                 }
873                                                 if ( firstTime ) {
874                                                         setupForFirstSort();
875                                                 }
877                                                 // Build the cache for the tbody cells
878                                                 // to share between calculations for this sort action.
879                                                 // Re-calculated each time a sort action is performed due to possiblity
880                                                 // that sort values change. Shouldn't be too expensive, but if it becomes
881                                                 // too slow an event based system should be implemented somehow where
882                                                 // cells get event .change() and bubbles up to the <table> here
883                                                 cache = buildCache( table );
885                                                 totalRows = ( $table[ 0 ].tBodies[ 0 ] && $table[ 0 ].tBodies[ 0 ].rows.length ) || 0;
886                                                 if ( totalRows > 0 ) {
887                                                         cell = this;
888                                                         $cell = $( cell );
890                                                         // Get current column sort order
891                                                         $cell.data( {
892                                                                 order: $cell.data( 'count' ) % 2,
893                                                                 count: $cell.data( 'count' ) + 1
894                                                         } );
896                                                         cell = this;
897                                                         // Get current column index
898                                                         columns = config.headerToColumns[ $cell.data( 'headerIndex' ) ];
899                                                         newSortList = $.map( columns, function ( c ) {
900                                                                 // jQuery "helpfully" flattens the arrays...
901                                                                 return [ [ c, $cell.data( 'order' ) ] ];
902                                                         } );
903                                                         // Index of first column belonging to this header
904                                                         i = columns[ 0 ];
906                                                         if ( !e[ config.sortMultiSortKey ] ) {
907                                                                 // User only wants to sort on one column set
908                                                                 // Flush the sort list and add new columns
909                                                                 config.sortList = newSortList;
910                                                         } else {
911                                                                 // Multi column sorting
912                                                                 // It is not possible for one column to belong to multiple headers,
913                                                                 // so this is okay - we don't need to check for every value in the columns array
914                                                                 if ( isValueInArray( i, config.sortList ) ) {
915                                                                         // The user has clicked on an already sorted column.
916                                                                         // Reverse the sorting direction for all tables.
917                                                                         for ( j = 0; j < config.sortList.length; j++ ) {
918                                                                                 s = config.sortList[ j ];
919                                                                                 o = config.headerList[ config.columnToHeader[ s[ 0 ] ] ];
920                                                                                 if ( isValueInArray( s[ 0 ], newSortList ) ) {
921                                                                                         $( o ).data( 'count', s[ 1 ] + 1 );
922                                                                                         s[ 1 ] = $( o ).data( 'count' ) % 2;
923                                                                                 }
924                                                                         }
925                                                                 } else {
926                                                                         // Add columns to sort list array
927                                                                         config.sortList = config.sortList.concat( newSortList );
928                                                                 }
929                                                         }
931                                                         // Reset order/counts of cells not affected by sorting
932                                                         setHeadersOrder( $headers, config.sortList, config.headerToColumns );
934                                                         // Set CSS for headers
935                                                         setHeadersCss( $table[ 0 ], $headers, config.sortList, sortCSS, sortMsg, config.columnToHeader );
936                                                         appendToTable(
937                                                                 $table[ 0 ], multisort( $table[ 0 ], config.sortList, cache )
938                                                         );
940                                                         // Stop normal event by returning false
941                                                         return false;
942                                                 }
944                                         // Cancel selection
945                                         } ).mousedown( function () {
946                                                 if ( config.cancelSelection ) {
947                                                         this.onselectstart = function () {
948                                                                 return false;
949                                                         };
950                                                         return false;
951                                                 }
952                                         } );
954                                         /**
955                                          * Sorts the table. If no sorting is specified by passing a list of sort
956                                          * objects, the table is sorted according to the initial sorting order.
957                                          * Passing an empty array will reset sorting (basically just reset the headers
958                                          * making the table appear unsorted).
959                                          *
960                                          * @param {Array} [sortList] List of sort objects.
961                                          */
962                                         $table.data( 'tablesorter' ).sort = function ( sortList ) {
964                                                 if ( firstTime ) {
965                                                         setupForFirstSort();
966                                                 }
968                                                 if ( sortList === undefined ) {
969                                                         sortList = config.sortList;
970                                                 } else if ( sortList.length > 0 ) {
971                                                         sortList = convertSortList( sortList );
972                                                 }
974                                                 // Set each column's sort count to be able to determine the correct sort
975                                                 // order when clicking on a header cell the next time
976                                                 setHeadersOrder( $headers, sortList, config.headerToColumns );
978                                                 // re-build the cache for the tbody cells
979                                                 cache = buildCache( table );
981                                                 // set css for headers
982                                                 setHeadersCss( table, $headers, sortList, sortCSS, sortMsg, config.columnToHeader );
984                                                 // sort the table and append it to the dom
985                                                 appendToTable( table, multisort( table, sortList, cache ) );
986                                         };
988                                         // sort initially
989                                         if ( config.sortList.length > 0 ) {
990                                                 config.sortList = convertSortList( config.sortList );
991                                                 $table.data( 'tablesorter' ).sort();
992                                         }
994                                 } );
995                         },
997                         addParser: function ( parser ) {
998                                 if ( !getParserById( parser.id ) ) {
999                                         parsers.push( parser );
1000                                 }
1001                         },
1003                         formatDigit: function ( s ) {
1004                                 var out, c, p, i;
1005                                 if ( ts.transformTable !== false ) {
1006                                         out = '';
1007                                         for ( p = 0; p < s.length; p++ ) {
1008                                                 c = s.charAt( p );
1009                                                 if ( c in ts.transformTable ) {
1010                                                         out += ts.transformTable[ c ];
1011                                                 } else {
1012                                                         out += c;
1013                                                 }
1014                                         }
1015                                         s = out;
1016                                 }
1017                                 i = parseFloat( s.replace( /[, ]/g, '' ).replace( '\u2212', '-' ) );
1018                                 return isNaN( i ) ? 0 : i;
1019                         },
1021                         formatFloat: function ( s ) {
1022                                 var i = parseFloat( s );
1023                                 return isNaN( i ) ? 0 : i;
1024                         },
1026                         formatInt: function ( s ) {
1027                                 var i = parseInt( s, 10 );
1028                                 return isNaN( i ) ? 0 : i;
1029                         },
1031                         clearTableBody: function ( table ) {
1032                                 $( table.tBodies[ 0 ] ).empty();
1033                         },
1035                         getParser: function ( id ) {
1036                                 buildTransformTable();
1037                                 buildDateTable();
1038                                 cacheRegexs();
1039                                 buildCollationTable();
1041                                 return getParserById( id );
1042                         },
1044                         getParsers: function () {  // for table diagnosis
1045                                 return parsers;
1046                         }
1047                 };
1049         // Shortcut
1050         ts = $.tablesorter;
1052         // Register as jQuery prototype method
1053         $.fn.tablesorter = function ( settings ) {
1054                 return ts.construct( this, settings );
1055         };
1057         // Add default parsers
1058         ts.addParser( {
1059                 id: 'text',
1060                 is: function () {
1061                         return true;
1062                 },
1063                 format: function ( s ) {
1064                         s = $.trim( s.toLowerCase() );
1065                         if ( ts.collationRegex ) {
1066                                 var tsc = ts.collationTable;
1067                                 s = s.replace( ts.collationRegex, function ( match ) {
1068                                         var r = tsc[ match ] ? tsc[ match ] : tsc[ match.toUpperCase() ];
1069                                         return r.toLowerCase();
1070                                 } );
1071                         }
1072                         return s;
1073                 },
1074                 type: 'text'
1075         } );
1077         ts.addParser( {
1078                 id: 'IPAddress',
1079                 is: function ( s ) {
1080                         return ts.rgx.IPAddress[ 0 ].test( s );
1081                 },
1082                 format: function ( s ) {
1083                         var i, item,
1084                                 a = s.split( '.' ),
1085                                 r = '';
1086                         for ( i = 0; i < a.length; i++ ) {
1087                                 item = a[ i ];
1088                                 if ( item.length === 1 ) {
1089                                         r += '00' + item;
1090                                 } else if ( item.length === 2 ) {
1091                                         r += '0' + item;
1092                                 } else {
1093                                         r += item;
1094                                 }
1095                         }
1096                         return $.tablesorter.formatFloat( r );
1097                 },
1098                 type: 'numeric'
1099         } );
1101         ts.addParser( {
1102                 id: 'currency',
1103                 is: function ( s ) {
1104                         return ts.rgx.currency[ 0 ].test( s );
1105                 },
1106                 format: function ( s ) {
1107                         return $.tablesorter.formatDigit( s.replace( ts.rgx.currency[ 1 ], '' ) );
1108                 },
1109                 type: 'numeric'
1110         } );
1112         ts.addParser( {
1113                 id: 'url',
1114                 is: function ( s ) {
1115                         return ts.rgx.url[ 0 ].test( s );
1116                 },
1117                 format: function ( s ) {
1118                         return $.trim( s.replace( ts.rgx.url[ 1 ], '' ) );
1119                 },
1120                 type: 'text'
1121         } );
1123         ts.addParser( {
1124                 id: 'isoDate',
1125                 is: function ( s ) {
1126                         return ts.rgx.isoDate[ 0 ].test( s );
1127                 },
1128                 format: function ( s ) {
1129                         var isodate, matches;
1130                         if ( !Date.prototype.toISOString ) {
1131                                 // Old browsers don't understand iso, Fallback to US date parsing and ignore the time part.
1132                                 matches = $.trim( s ).match( ts.rgx.isoDate[ 1 ] );
1133                                 if ( !matches ) {
1134                                         return $.tablesorter.formatFloat( 0 );
1135                                 }
1136                                 isodate = new Date( matches[ 2 ]  + '/' + matches[ 3 ] + '/' + matches[ 1 ] );
1137                         } else {
1138                                 matches = s.match( ts.rgx.isoDate[ 0 ] );
1139                                 if ( !matches ) {
1140                                         return $.tablesorter.formatFloat( 0 );
1141                                 }
1142                                 isodate = new Date( $.trim( matches[ 0 ] ) );
1143                         }
1144                         return $.tablesorter.formatFloat( ( isodate !== undefined ) ? isodate.getTime() : 0 );
1145                 },
1146                 type: 'numeric'
1147         } );
1149         ts.addParser( {
1150                 id: 'usLongDate',
1151                 is: function ( s ) {
1152                         return ts.rgx.usLongDate[ 0 ].test( s );
1153                 },
1154                 format: function ( s ) {
1155                         return $.tablesorter.formatFloat( new Date( s ).getTime() );
1156                 },
1157                 type: 'numeric'
1158         } );
1160         ts.addParser( {
1161                 id: 'date',
1162                 is: function ( s ) {
1163                         return ( ts.dateRegex[ 0 ].test( s ) || ts.dateRegex[ 1 ].test( s ) || ts.dateRegex[ 2 ].test( s ) );
1164                 },
1165                 format: function ( s ) {
1166                         var match, y;
1167                         s = $.trim( s.toLowerCase() );
1169                         if ( ( match = s.match( ts.dateRegex[ 0 ] ) ) !== null ) {
1170                                 if ( mw.config.get( 'wgDefaultDateFormat' ) === 'mdy' || mw.config.get( 'wgPageContentLanguage' ) === 'en' ) {
1171                                         s = [ match[ 3 ], match[ 1 ], match[ 2 ] ];
1172                                 } else if ( mw.config.get( 'wgDefaultDateFormat' ) === 'dmy' ) {
1173                                         s = [ match[ 3 ], match[ 2 ], match[ 1 ] ];
1174                                 } else {
1175                                         // If we get here, we don't know which order the dd-dd-dddd
1176                                         // date is in. So return something not entirely invalid.
1177                                         return '99999999';
1178                                 }
1179                         } else if ( ( match = s.match( ts.dateRegex[ 1 ] ) ) !== null ) {
1180                                 s = [ match[ 3 ], String( ts.monthNames[ match[ 2 ] ] ), match[ 1 ] ];
1181                         } else if ( ( match = s.match( ts.dateRegex[ 2 ] ) ) !== null ) {
1182                                 s = [ match[ 3 ], String( ts.monthNames[ match[ 1 ] ] ), match[ 2 ] ];
1183                         } else {
1184                                 // Should never get here
1185                                 return '99999999';
1186                         }
1188                         // Pad Month and Day
1189                         if ( s[ 1 ].length === 1 ) {
1190                                 s[ 1 ] = '0' + s[ 1 ];
1191                         }
1192                         if ( s[ 2 ].length === 1 ) {
1193                                 s[ 2 ] = '0' + s[ 2 ];
1194                         }
1196                         if ( ( y = parseInt( s[ 0 ], 10 ) ) < 100 ) {
1197                                 // Guestimate years without centuries
1198                                 if ( y < 30 ) {
1199                                         s[ 0 ] = 2000 + y;
1200                                 } else {
1201                                         s[ 0 ] = 1900 + y;
1202                                 }
1203                         }
1204                         while ( s[ 0 ].length < 4 ) {
1205                                 s[ 0 ] = '0' + s[ 0 ];
1206                         }
1207                         return parseInt( s.join( '' ), 10 );
1208                 },
1209                 type: 'numeric'
1210         } );
1212         ts.addParser( {
1213                 id: 'time',
1214                 is: function ( s ) {
1215                         return ts.rgx.time[ 0 ].test( s );
1216                 },
1217                 format: function ( s ) {
1218                         return $.tablesorter.formatFloat( new Date( '2000/01/01 ' + s ).getTime() );
1219                 },
1220                 type: 'numeric'
1221         } );
1223         ts.addParser( {
1224                 id: 'number',
1225                 is: function ( s ) {
1226                         return $.tablesorter.numberRegex.test( $.trim( s ) );
1227                 },
1228                 format: function ( s ) {
1229                         return $.tablesorter.formatDigit( s );
1230                 },
1231                 type: 'numeric'
1232         } );
1234 }( jQuery, mediaWiki ) );