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jquery.tablesorter: Reset unaffected columns' sort counts when sorting
[lhc/web/wiklou.git] / resources / jquery / jquery.tablesorter.js
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, wgMonthNames, wgMonthNamesShort,
12 * wgDefaultDateFormat, wgContentLanguage)
13 * Uses 'tableSorterCollation' in mw.config (if available)
14 */
15 /**
16 *
17 * @description Create a sortable table with multi-column sorting capabilitys
18 *
19 * @example $( 'table' ).tablesorter();
20 * @desc Create a simple tablesorter interface.
21 *
22 * @example $( 'table' ).tablesorter( { sortList: [ { 0: 'desc' }, { 1: 'asc' } ] } );
23 * @desc Create a tablesorter interface initially sorting on the first and second column.
24 *
25 * @option String cssHeader ( optional ) A string of the class name to be appended
26 * to sortable tr elements in the thead of the table. Default value:
27 * "header"
28 *
29 * @option String cssAsc ( optional ) A string of the class name to be appended to
30 * sortable tr elements in the thead on a ascending sort. Default value:
31 * "headerSortUp"
32 *
33 * @option String cssDesc ( optional ) A string of the class name to be appended
34 * to sortable tr elements in the thead on a descending sort. Default
35 * value: "headerSortDown"
36 *
37 * @option String sortInitialOrder ( optional ) A string of the inital sorting
38 * order can be asc or desc. Default value: "asc"
39 *
40 * @option String sortMultisortKey ( optional ) A string of the multi-column sort
41 * key. Default value: "shiftKey"
42 *
43 * @option Boolean sortLocaleCompare ( optional ) Boolean flag indicating whatever
44 * to use String.localeCampare method or not. Set to false.
45 *
46 * @option Boolean cancelSelection ( optional ) Boolean flag indicating if
47 * tablesorter should cancel selection of the table headers text.
48 * Default value: true
49 *
50 * @option Array sortList ( optional ) An array containing objects specifying sorting.
51 * By passing more than one object, multi-sorting will be applied. Object structure:
52 * { <Integer column index>: <String 'asc' or 'desc'> }
53 * Default value: []
54 *
55 * @option Boolean debug ( optional ) Boolean flag indicating if tablesorter
56 * should display debuging information usefull for development.
57 *
58 * @event sortEnd.tablesorter: Triggered as soon as any sorting has been applied.
59 *
60 * @type jQuery
61 *
62 * @name tablesorter
63 *
64 * @cat Plugins/Tablesorter
65 *
66 * @author Christian Bach/christian.bach@polyester.se
67 */
68
69 ( function ( $, mw ) {
70 /*jshint onevar:false */
71
72 /* Local scope */
73
74 var ts,
75 parsers = [];
76
77 /* Parser utility functions */
78
79 function getParserById( name ) {
80 var len = parsers.length;
81 for ( var i = 0; i < len; i++ ) {
82 if ( parsers[i].id.toLowerCase() === name.toLowerCase() ) {
83 return parsers[i];
84 }
85 }
86 return false;
87 }
88
89 function getElementSortKey( node ) {
90 var $node = $( node ),
91 // Use data-sort-value attribute.
92 // Use data() instead of attr() so that live value changes
93 // are processed as well (bug 38152).
94 data = $node.data( 'sortValue' );
95
96 if ( data !== null && data !== undefined ) {
97 // Cast any numbers or other stuff to a string, methods
98 // like charAt, toLowerCase and split are expected.
99 return String( data );
100 } else {
101 if ( !node ) {
102 return $node.text();
103 } else if ( node.tagName.toLowerCase() === 'img' ) {
104 return $node.attr( 'alt' ) || ''; // handle undefined alt
105 } else {
106 return $.map( $.makeArray( node.childNodes ), function( elem ) {
107 // 1 is for document.ELEMENT_NODE (the constant is undefined on old browsers)
108 if ( elem.nodeType === 1 ) {
109 return getElementSortKey( elem );
110 } else {
111 return $.text( elem );
112 }
113 } ).join( '' );
114 }
115 }
116 }
117
118 function detectParserForColumn( table, rows, cellIndex ) {
119 var l = parsers.length,
120 nodeValue,
121 // Start with 1 because 0 is the fallback parser
122 i = 1,
123 rowIndex = 0,
124 concurrent = 0,
125 needed = ( rows.length > 4 ) ? 5 : rows.length;
126
127 while ( i < l ) {
128 if ( rows[rowIndex] && rows[rowIndex].cells[cellIndex] ) {
129 nodeValue = $.trim( getElementSortKey( rows[rowIndex].cells[cellIndex] ) );
130 } else {
131 nodeValue = '';
132 }
133
134 if ( nodeValue !== '') {
135 if ( parsers[i].is( nodeValue, table ) ) {
136 concurrent++;
137 rowIndex++;
138 if ( concurrent >= needed ) {
139 // Confirmed the parser for multiple cells, let's return it
140 return parsers[i];
141 }
142 } else {
143 // Check next parser, reset rows
144 i++;
145 rowIndex = 0;
146 concurrent = 0;
147 }
148 } else {
149 // Empty cell
150 rowIndex++;
151 if ( rowIndex > rows.length ) {
152 rowIndex = 0;
153 i++;
154 }
155 }
156 }
157
158 // 0 is always the generic parser (text)
159 return parsers[0];
160 }
161
162 function buildParserCache( table, $headers ) {
163 var rows = table.tBodies[0].rows,
164 sortType,
165 parsers = [];
166
167 if ( rows[0] ) {
168
169 var cells = rows[0].cells,
170 len = cells.length,
171 i, parser;
172
173 for ( i = 0; i < len; i++ ) {
174 parser = false;
175 sortType = $headers.eq( i ).data( 'sortType' );
176 if ( sortType !== undefined ) {
177 parser = getParserById( sortType );
178 }
179
180 if ( parser === false ) {
181 parser = detectParserForColumn( table, rows, i );
182 }
183
184 parsers.push( parser );
185 }
186 }
187 return parsers;
188 }
189
190 /* Other utility functions */
191
192 function buildCache( table ) {
193 var totalRows = ( table.tBodies[0] && table.tBodies[0].rows.length ) || 0,
194 totalCells = ( table.tBodies[0].rows[0] && table.tBodies[0].rows[0].cells.length ) || 0,
195 parsers = table.config.parsers,
196 cache = {
197 row: [],
198 normalized: []
199 };
200
201 for ( var i = 0; i < totalRows; ++i ) {
202
203 // Add the table data to main data array
204 var $row = $( table.tBodies[0].rows[i] ),
205 cols = [];
206
207 // if this is a child row, add it to the last row's children and
208 // continue to the next row
209 if ( $row.hasClass( table.config.cssChildRow ) ) {
210 cache.row[cache.row.length - 1] = cache.row[cache.row.length - 1].add( $row );
211 // go to the next for loop
212 continue;
213 }
214
215 cache.row.push( $row );
216
217 for ( var j = 0; j < totalCells; ++j ) {
218 cols.push( parsers[j].format( getElementSortKey( $row[0].cells[j] ), table, $row[0].cells[j] ) );
219 }
220
221 cols.push( cache.normalized.length ); // add position for rowCache
222 cache.normalized.push( cols );
223 cols = null;
224 }
225
226 return cache;
227 }
228
229 function appendToTable( table, cache ) {
230 var row = cache.row,
231 normalized = cache.normalized,
232 totalRows = normalized.length,
233 checkCell = ( normalized[0].length - 1 ),
234 fragment = document.createDocumentFragment();
235
236 for ( var i = 0; i < totalRows; i++ ) {
237 var pos = normalized[i][checkCell];
238
239 var l = row[pos].length;
240
241 for ( var j = 0; j < l; j++ ) {
242 fragment.appendChild( row[pos][j] );
243 }
244
245 }
246 table.tBodies[0].appendChild( fragment );
247
248 $( table ).trigger( 'sortEnd.tablesorter' );
249 }
250
251 /**
252 * Find all header rows in a thead-less table and put them in a <thead> tag.
253 * This only treats a row as a header row if it contains only <th>s (no <td>s)
254 * and if it is preceded entirely by header rows. The algorithm stops when
255 * it encounters the first non-header row.
256 *
257 * After this, it will look at all rows at the bottom for footer rows
258 * And place these in a tfoot using similar rules.
259 * @param $table jQuery object for a <table>
260 */
261 function emulateTHeadAndFoot( $table ) {
262 var $rows = $table.find( '> tbody > tr' );
263 if( !$table.get(0).tHead ) {
264 var $thead = $( '<thead>' );
265 $rows.each( function () {
266 if ( $(this).children( 'td' ).length > 0 ) {
267 // This row contains a <td>, so it's not a header row
268 // Stop here
269 return false;
270 }
271 $thead.append( this );
272 } );
273 $table.find(' > tbody:first').before( $thead );
274 }
275 if( !$table.get(0).tFoot ) {
276 var $tfoot = $( '<tfoot>' );
277 var len = $rows.length;
278 for ( var i = len-1; i >= 0; i-- ) {
279 if( $( $rows[i] ).children( 'td' ).length > 0 ){
280 break;
281 }
282 $tfoot.prepend( $( $rows[i] ));
283 }
284 $table.append( $tfoot );
285 }
286 }
287
288 function buildHeaders( table, msg ) {
289 var maxSeen = 0,
290 longest,
291 realCellIndex = 0,
292 $tableHeaders = $( 'thead:eq(0) > tr', table );
293 if ( $tableHeaders.length > 1 ) {
294 $tableHeaders.each( function () {
295 if ( this.cells.length > maxSeen ) {
296 maxSeen = this.cells.length;
297 longest = this;
298 }
299 });
300 $tableHeaders = $( longest );
301 }
302 $tableHeaders = $tableHeaders.children( 'th' ).each( function ( index ) {
303 this.column = realCellIndex;
304
305 var colspan = this.colspan;
306 colspan = colspan ? parseInt( colspan, 10 ) : 1;
307 realCellIndex += colspan;
308
309 this.order = 0;
310 this.count = 0;
311
312 if ( $( this ).is( '.unsortable' ) ) {
313 this.sortDisabled = true;
314 }
315
316 if ( !this.sortDisabled ) {
317 $( this ).addClass( table.config.cssHeader ).attr( 'title', msg[1] );
318 }
319
320 // add cell to headerList
321 table.config.headerList[index] = this;
322 } );
323
324 return $tableHeaders;
325
326 }
327
328 /**
329 * Sets the sort count of the columns that are not affected by the sorting to have them sorted
330 * in default (ascending) order when their header cell is clicked the next time.
331 *
332 * @param {jQuery} $headers
333 * @param {Number[][]} sortList
334 * @param {Number[][]} headerToColumns
335 */
336 function setHeadersOrder( $headers, sortList, headerToColumns ) {
337 // Loop through all headers to retrieve the indices of the columns the header spans across:
338 $.each( headerToColumns, function( headerIndex, columns ) {
339
340 $.each( columns, function( i, columnIndex ) {
341 var header = $headers[headerIndex];
342
343 if ( !isValueInArray( columnIndex, sortList ) ) {
344 // Column shall not be sorted: Reset header count and order.
345 header.order = 0;
346 header.count = 0;
347 } else {
348 // Column shall be sorted: Apply designated count and order.
349 $.each( sortList, function( j, sortColumn ) {
350 if ( sortColumn[0] === i ) {
351 header.order = sortColumn[1];
352 header.count = sortColumn[1] + 1;
353 return false;
354 }
355 } );
356 }
357 } );
358
359 } );
360 }
361
362 function isValueInArray( v, a ) {
363 var l = a.length;
364 for ( var i = 0; i < l; i++ ) {
365 if ( a[i][0] === v ) {
366 return true;
367 }
368 }
369 return false;
370 }
371
372 function setHeadersCss( table, $headers, list, css, msg, columnToHeader ) {
373 // Remove all header information and reset titles to default message
374 $headers.removeClass( css[0] ).removeClass( css[1] ).attr( 'title', msg[1] );
375
376 for ( var i = 0; i < list.length; i++ ) {
377 $headers.eq( columnToHeader[ list[i][0] ] )
378 .addClass( css[ list[i][1] ] )
379 .attr( 'title', msg[ list[i][1] ] );
380 }
381 }
382
383 function sortText( a, b ) {
384 return ( (a < b) ? -1 : ((a > b) ? 1 : 0) );
385 }
386
387 function sortTextDesc( a, b ) {
388 return ( (b < a) ? -1 : ((b > a) ? 1 : 0) );
389 }
390
391 function multisort( table, sortList, cache ) {
392 var sortFn = [];
393 var len = sortList.length;
394 for ( var i = 0; i < len; i++ ) {
395 sortFn[i] = ( sortList[i][1] ) ? sortTextDesc : sortText;
396 }
397 cache.normalized.sort( function ( array1, array2 ) {
398 var col, ret;
399 for ( var i = 0; i < len; i++ ) {
400 col = sortList[i][0];
401 ret = sortFn[i].call( this, array1[col], array2[col] );
402 if ( ret !== 0 ) {
403 return ret;
404 }
405 }
406 // Fall back to index number column to ensure stable sort
407 return sortText.call( this, array1[array1.length - 1], array2[array2.length - 1] );
408 } );
409 return cache;
410 }
411
412 function buildTransformTable() {
413 var digits = '0123456789,.'.split( '' );
414 var separatorTransformTable = mw.config.get( 'wgSeparatorTransformTable' );
415 var digitTransformTable = mw.config.get( 'wgDigitTransformTable' );
416 if ( separatorTransformTable === null || ( separatorTransformTable[0] === '' && digitTransformTable[2] === '' ) ) {
417 ts.transformTable = false;
418 } else {
419 ts.transformTable = {};
420
421 // Unpack the transform table
422 var ascii = separatorTransformTable[0].split( '\t' ).concat( digitTransformTable[0].split( '\t' ) );
423 var localised = separatorTransformTable[1].split( '\t' ).concat( digitTransformTable[1].split( '\t' ) );
424
425 // Construct regex for number identification
426 for ( var i = 0; i < ascii.length; i++ ) {
427 ts.transformTable[localised[i]] = ascii[i];
428 digits.push( $.escapeRE( localised[i] ) );
429 }
430 }
431 var digitClass = '[' + digits.join( '', digits ) + ']';
432
433 // We allow a trailing percent sign, which we just strip. This works fine
434 // if percents and regular numbers aren't being mixed.
435 ts.numberRegex = new RegExp('^(' + '[-+\u2212]?[0-9][0-9,]*(\\.[0-9,]*)?(E[-+\u2212]?[0-9][0-9,]*)?' + // Fortran-style scientific
436 '|' + '[-+\u2212]?' + digitClass + '+[\\s\\xa0]*%?' + // Generic localised
437 ')$', 'i');
438 }
439
440 function buildDateTable() {
441 var regex = [];
442 ts.monthNames = {};
443
444 for ( var i = 1; i < 13; i++ ) {
445 var name = mw.config.get( 'wgMonthNames' )[i].toLowerCase();
446 ts.monthNames[name] = i;
447 regex.push( $.escapeRE( name ) );
448 name = mw.config.get( 'wgMonthNamesShort' )[i].toLowerCase().replace( '.', '' );
449 ts.monthNames[name] = i;
450 regex.push( $.escapeRE( name ) );
451 }
452
453 // Build piped string
454 regex = regex.join( '|' );
455
456 // Build RegEx
457 // Any date formated with . , ' - or /
458 ts.dateRegex[0] = new RegExp( /^\s*(\d{1,2})[\,\.\-\/'\s]{1,2}(\d{1,2})[\,\.\-\/'\s]{1,2}(\d{2,4})\s*?/i);
459
460 // Written Month name, dmy
461 ts.dateRegex[1] = new RegExp( '^\\s*(\\d{1,2})[\\,\\.\\-\\/\'\\s]*(' + regex + ')' + '[\\,\\.\\-\\/\'\\s]*(\\d{2,4})\\s*$', 'i' );
462
463 // Written Month name, mdy
464 ts.dateRegex[2] = new RegExp( '^\\s*(' + regex + ')' + '[\\,\\.\\-\\/\'\\s]*(\\d{1,2})[\\,\\.\\-\\/\'\\s]*(\\d{2,4})\\s*$', 'i' );
465
466 }
467
468 /**
469 * Replace all rowspanned cells in the body with clones in each row, so sorting
470 * need not worry about them.
471 *
472 * @param $table jQuery object for a <table>
473 */
474 function explodeRowspans( $table ) {
475 var rowspanCells = $table.find( '> tbody > tr > [rowspan]' ).get();
476
477 // Short circuit
478 if ( !rowspanCells.length ) {
479 return;
480 }
481
482 // First, we need to make a property like cellIndex but taking into
483 // account colspans. We also cache the rowIndex to avoid having to take
484 // cell.parentNode.rowIndex in the sorting function below.
485 $table.find( '> tbody > tr' ).each( function () {
486 var col = 0;
487 var l = this.cells.length;
488 for ( var i = 0; i < l; i++ ) {
489 this.cells[i].realCellIndex = col;
490 this.cells[i].realRowIndex = this.rowIndex;
491 col += this.cells[i].colSpan;
492 }
493 } );
494
495 // Split multi row cells into multiple cells with the same content.
496 // Sort by column then row index to avoid problems with odd table structures.
497 // Re-sort whenever a rowspanned cell's realCellIndex is changed, because it
498 // might change the sort order.
499 function resortCells() {
500 rowspanCells = rowspanCells.sort( function ( a, b ) {
501 var ret = a.realCellIndex - b.realCellIndex;
502 if ( !ret ) {
503 ret = a.realRowIndex - b.realRowIndex;
504 }
505 return ret;
506 } );
507 $.each( rowspanCells, function () {
508 this.needResort = false;
509 } );
510 }
511 resortCells();
512
513 var spanningRealCellIndex, rowSpan, colSpan;
514 function filterfunc() {
515 return this.realCellIndex >= spanningRealCellIndex;
516 }
517
518 function fixTdCellIndex() {
519 this.realCellIndex += colSpan;
520 if ( this.rowSpan > 1 ) {
521 this.needResort = true;
522 }
523 }
524
525 while ( rowspanCells.length ) {
526 if ( rowspanCells[0].needResort ) {
527 resortCells();
528 }
529
530 var cell = rowspanCells.shift();
531 rowSpan = cell.rowSpan;
532 colSpan = cell.colSpan;
533 spanningRealCellIndex = cell.realCellIndex;
534 cell.rowSpan = 1;
535 var $nextRows = $( cell ).parent().nextAll();
536 for ( var i = 0; i < rowSpan - 1; i++ ) {
537 var $tds = $( $nextRows[i].cells ).filter( filterfunc );
538 var $clone = $( cell ).clone();
539 $clone[0].realCellIndex = spanningRealCellIndex;
540 if ( $tds.length ) {
541 $tds.each( fixTdCellIndex );
542 $tds.first().before( $clone );
543 } else {
544 $nextRows.eq( i ).append( $clone );
545 }
546 }
547 }
548 }
549
550 function buildCollationTable() {
551 ts.collationTable = mw.config.get( 'tableSorterCollation' );
552 ts.collationRegex = null;
553 if ( ts.collationTable ) {
554 var keys = [];
555
556 // Build array of key names
557 for ( var key in ts.collationTable ) {
558 if ( ts.collationTable.hasOwnProperty(key) ) { //to be safe
559 keys.push(key);
560 }
561 }
562 if (keys.length) {
563 ts.collationRegex = new RegExp( '[' + keys.join( '' ) + ']', 'ig' );
564 }
565 }
566 }
567
568 function cacheRegexs() {
569 if ( ts.rgx ) {
570 return;
571 }
572 ts.rgx = {
573 IPAddress: [
574 new RegExp( /^\d{1,3}[\.]\d{1,3}[\.]\d{1,3}[\.]\d{1,3}$/)
575 ],
576 currency: [
577 new RegExp( /(^[£$€¥]|[£$€¥]$)/),
578 new RegExp( /[£$€¥]/g)
579 ],
580 url: [
581 new RegExp( /^(https?|ftp|file):\/\/$/),
582 new RegExp( /(https?|ftp|file):\/\//)
583 ],
584 isoDate: [
585 new RegExp( /^\d{4}[\/\-]\d{1,2}[\/\-]\d{1,2}$/)
586 ],
587 usLongDate: [
588 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)))$/)
589 ],
590 time: [
591 new RegExp( /^(([0-2]?[0-9]:[0-5][0-9])|([0-1]?[0-9]:[0-5][0-9]\s(am|pm)))$/)
592 ]
593 };
594 }
595
596 /**
597 * Converts sort objects [ { Integer: String }, ... ] to the internally used nested array
598 * structure [ [ Integer , Integer ], ... ]
599 *
600 * @param sortObjects {Array} List of sort objects.
601 * @return {Array} List of internal sort definitions.
602 */
603
604 function convertSortList( sortObjects ) {
605 var sortList = [];
606 $.each( sortObjects, function( i, sortObject ) {
607 $.each ( sortObject, function( columnIndex, order ) {
608 var orderIndex = ( order === 'desc' ) ? 1 : 0;
609 sortList.push( [parseInt( columnIndex, 10 ), orderIndex] );
610 } );
611 } );
612 return sortList;
613 }
614
615 /* Public scope */
616
617 $.tablesorter = {
618
619 defaultOptions: {
620 cssHeader: 'headerSort',
621 cssAsc: 'headerSortUp',
622 cssDesc: 'headerSortDown',
623 cssChildRow: 'expand-child',
624 sortInitialOrder: 'asc',
625 sortMultiSortKey: 'shiftKey',
626 sortLocaleCompare: false,
627 parsers: {},
628 widgets: [],
629 headers: {},
630 cancelSelection: true,
631 sortList: [],
632 headerList: [],
633 selectorHeaders: 'thead tr:eq(0) th',
634 debug: false
635 },
636
637 dateRegex: [],
638 monthNames: {},
639
640 /**
641 * @param $tables {jQuery}
642 * @param settings {Object} (optional)
643 */
644 construct: function ( $tables, settings ) {
645 return $tables.each( function ( i, table ) {
646 // Declare and cache.
647 var $headers, cache, config,
648 headerToColumns, columnToHeader, colspanOffset,
649 $table = $( table ),
650 firstTime = true;
651
652 // Quit if no tbody
653 if ( !table.tBodies ) {
654 return;
655 }
656 if ( !table.tHead ) {
657 // No thead found. Look for rows with <th>s and
658 // move them into a <thead> tag or a <tfoot> tag
659 emulateTHeadAndFoot( $table );
660
661 // Still no thead? Then quit
662 if ( !table.tHead ) {
663 return;
664 }
665 }
666 $table.addClass( 'jquery-tablesorter' );
667
668 // FIXME config should probably not be stored in the plain table node
669 // New config object.
670 table.config = {};
671
672 // Merge and extend.
673 config = $.extend( table.config, $.tablesorter.defaultOptions, settings );
674
675 // Save the settings where they read
676 $.data( table, 'tablesorter', { config: config } );
677
678 // Get the CSS class names, could be done else where.
679 var sortCSS = [ config.cssDesc, config.cssAsc ];
680 var sortMsg = [ mw.msg( 'sort-descending' ), mw.msg( 'sort-ascending' ) ];
681
682 // Build headers
683 $headers = buildHeaders( table, sortMsg );
684
685 // Grab and process locale settings
686 buildTransformTable();
687 buildDateTable();
688 buildCollationTable();
689
690 // Precaching regexps can bring 10 fold
691 // performance improvements in some browsers.
692 cacheRegexs();
693
694 function setupForFirstSort() {
695 firstTime = false;
696
697 // Legacy fix of .sortbottoms
698 // Wrap them inside inside a tfoot (because that's what they actually want to be) &
699 // and put the <tfoot> at the end of the <table>
700 var $sortbottoms = $table.find( '> tbody > tr.sortbottom' );
701 if ( $sortbottoms.length ) {
702 var $tfoot = $table.children( 'tfoot' );
703 if ( $tfoot.length ) {
704 $tfoot.eq(0).prepend( $sortbottoms );
705 } else {
706 $table.append( $( '<tfoot>' ).append( $sortbottoms ) );
707 }
708 }
709
710 explodeRowspans( $table );
711
712 // try to auto detect column type, and store in tables config
713 table.config.parsers = buildParserCache( table, $headers );
714 }
715
716 // as each header can span over multiple columns (using colspan=N),
717 // we have to bidirectionally map headers to their columns and columns to their headers
718 headerToColumns = [];
719 columnToHeader = [];
720 colspanOffset = 0;
721 $headers.each( function ( headerIndex ) {
722 var columns = [];
723 for ( var i = 0; i < this.colSpan; i++ ) {
724 columnToHeader[ colspanOffset + i ] = headerIndex;
725 columns.push( colspanOffset + i );
726 }
727
728 headerToColumns[ headerIndex ] = columns;
729 colspanOffset += this.colSpan;
730 } );
731
732 // Apply event handling to headers
733 // this is too big, perhaps break it out?
734 $headers.filter( ':not(.unsortable)' ).click( function ( e ) {
735 if ( e.target.nodeName.toLowerCase() === 'a' ) {
736 // The user clicked on a link inside a table header
737 // Do nothing and let the default link click action continue
738 return true;
739 }
740
741 if ( firstTime ) {
742 setupForFirstSort();
743 }
744
745 // Build the cache for the tbody cells
746 // to share between calculations for this sort action.
747 // Re-calculated each time a sort action is performed due to possiblity
748 // that sort values change. Shouldn't be too expensive, but if it becomes
749 // too slow an event based system should be implemented somehow where
750 // cells get event .change() and bubbles up to the <table> here
751 cache = buildCache( table );
752
753 var totalRows = ( $table[0].tBodies[0] && $table[0].tBodies[0].rows.length ) || 0;
754 if ( !table.sortDisabled && totalRows > 0 ) {
755 // Get current column sort order
756 this.order = this.count % 2;
757 this.count++;
758
759 var cell = this;
760 // Get current column index
761 var columns = headerToColumns[this.column];
762 var newSortList = $.map( columns, function (c) {
763 // jQuery "helpfully" flattens the arrays...
764 return [[c, cell.order]];
765 });
766 // Index of first column belonging to this header
767 var i = columns[0];
768
769 if ( !e[config.sortMultiSortKey] ) {
770 // User only wants to sort on one column set
771 // Flush the sort list and add new columns
772 config.sortList = newSortList;
773 } else {
774 // Multi column sorting
775 // It is not possible for one column to belong to multiple headers,
776 // so this is okay - we don't need to check for every value in the columns array
777 if ( isValueInArray( i, config.sortList ) ) {
778 // The user has clicked on an already sorted column.
779 // Reverse the sorting direction for all tables.
780 for ( var j = 0; j < config.sortList.length; j++ ) {
781 var s = config.sortList[j],
782 o = config.headerList[s[0]];
783 if ( isValueInArray( s[0], newSortList ) ) {
784 o.count = s[1];
785 o.count++;
786 s[1] = o.count % 2;
787 }
788 }
789 } else {
790 // Add columns to sort list array
791 config.sortList = config.sortList.concat( newSortList );
792 }
793 }
794
795 // Reset order/counts of cells not affected by sorting
796 setHeadersOrder( $headers, config.sortList, headerToColumns );
797
798 // Set CSS for headers
799 setHeadersCss( $table[0], $headers, config.sortList, sortCSS, sortMsg, columnToHeader );
800 appendToTable(
801 $table[0], multisort( $table[0], config.sortList, cache )
802 );
803
804 // Stop normal event by returning false
805 return false;
806 }
807
808 // Cancel selection
809 } ).mousedown( function () {
810 if ( config.cancelSelection ) {
811 this.onselectstart = function () {
812 return false;
813 };
814 return false;
815 }
816 } );
817
818 /**
819 * Sorts the table. If no sorting is specified by passing a list of sort
820 * objects, the table is sorted according to the initial sorting order.
821 * Passing an empty array will reset sorting (basically just reset the headers
822 * making the table appear unsorted).
823 *
824 * @param sortList {Array} (optional) List of sort objects.
825 */
826 $table.data( 'tablesorter' ).sort = function( sortList ) {
827
828 if ( firstTime ) {
829 setupForFirstSort();
830 }
831
832 if ( sortList === undefined ) {
833 sortList = config.sortList;
834 } else if ( sortList.length > 0 ) {
835 sortList = convertSortList( sortList );
836 }
837
838 // Set each column's sort count to be able to determine the correct sort
839 // order when clicking on a header cell the next time
840 setHeadersOrder( $headers, sortList, headerToColumns );
841
842 // re-build the cache for the tbody cells
843 cache = buildCache( table );
844
845 // set css for headers
846 setHeadersCss( table, $headers, sortList, sortCSS, sortMsg, columnToHeader );
847
848 // sort the table and append it to the dom
849 appendToTable( table, multisort( table, sortList, cache ) );
850 };
851
852 // sort initially
853 if ( config.sortList.length > 0 ) {
854 setupForFirstSort();
855 config.sortList = convertSortList( config.sortList );
856 $table.data( 'tablesorter' ).sort();
857 }
858
859 } );
860 },
861
862 addParser: function ( parser ) {
863 var l = parsers.length,
864 a = true;
865 for ( var i = 0; i < l; i++ ) {
866 if ( parsers[i].id.toLowerCase() === parser.id.toLowerCase() ) {
867 a = false;
868 }
869 }
870 if ( a ) {
871 parsers.push( parser );
872 }
873 },
874
875 formatDigit: function ( s ) {
876 var out, c, p, i;
877 if ( ts.transformTable !== false ) {
878 out = '';
879 for ( p = 0; p < s.length; p++ ) {
880 c = s.charAt(p);
881 if ( c in ts.transformTable ) {
882 out += ts.transformTable[c];
883 } else {
884 out += c;
885 }
886 }
887 s = out;
888 }
889 i = parseFloat( s.replace( /[, ]/g, '' ).replace( '\u2212', '-' ) );
890 return isNaN( i ) ? 0 : i;
891 },
892
893 formatFloat: function ( s ) {
894 var i = parseFloat(s);
895 return isNaN( i ) ? 0 : i;
896 },
897
898 formatInt: function ( s ) {
899 var i = parseInt( s, 10 );
900 return isNaN( i ) ? 0 : i;
901 },
902
903 clearTableBody: function ( table ) {
904 $( table.tBodies[0] ).empty();
905 }
906 };
907
908 // Shortcut
909 ts = $.tablesorter;
910
911 // Register as jQuery prototype method
912 $.fn.tablesorter = function ( settings ) {
913 return ts.construct( this, settings );
914 };
915
916 // Add default parsers
917 ts.addParser( {
918 id: 'text',
919 is: function () {
920 return true;
921 },
922 format: function ( s ) {
923 s = $.trim( s.toLowerCase() );
924 if ( ts.collationRegex ) {
925 var tsc = ts.collationTable;
926 s = s.replace( ts.collationRegex, function ( match ) {
927 var r = tsc[match] ? tsc[match] : tsc[match.toUpperCase()];
928 return r.toLowerCase();
929 } );
930 }
931 return s;
932 },
933 type: 'text'
934 } );
935
936 ts.addParser( {
937 id: 'IPAddress',
938 is: function ( s ) {
939 return ts.rgx.IPAddress[0].test(s);
940 },
941 format: function ( s ) {
942 var a = s.split( '.' ),
943 r = '',
944 l = a.length;
945 for ( var i = 0; i < l; i++ ) {
946 var item = a[i];
947 if ( item.length === 1 ) {
948 r += '00' + item;
949 } else if ( item.length === 2 ) {
950 r += '0' + item;
951 } else {
952 r += item;
953 }
954 }
955 return $.tablesorter.formatFloat(r);
956 },
957 type: 'numeric'
958 } );
959
960 ts.addParser( {
961 id: 'currency',
962 is: function ( s ) {
963 return ts.rgx.currency[0].test(s);
964 },
965 format: function ( s ) {
966 return $.tablesorter.formatDigit( s.replace( ts.rgx.currency[1], '' ) );
967 },
968 type: 'numeric'
969 } );
970
971 ts.addParser( {
972 id: 'url',
973 is: function ( s ) {
974 return ts.rgx.url[0].test(s);
975 },
976 format: function ( s ) {
977 return $.trim( s.replace( ts.rgx.url[1], '' ) );
978 },
979 type: 'text'
980 } );
981
982 ts.addParser( {
983 id: 'isoDate',
984 is: function ( s ) {
985 return ts.rgx.isoDate[0].test(s);
986 },
987 format: function ( s ) {
988 return $.tablesorter.formatFloat((s !== '') ? new Date(s.replace(
989 new RegExp( /-/g), '/')).getTime() : '0' );
990 },
991 type: 'numeric'
992 } );
993
994 ts.addParser( {
995 id: 'usLongDate',
996 is: function ( s ) {
997 return ts.rgx.usLongDate[0].test(s);
998 },
999 format: function ( s ) {
1000 return $.tablesorter.formatFloat( new Date(s).getTime() );
1001 },
1002 type: 'numeric'
1003 } );
1004
1005 ts.addParser( {
1006 id: 'date',
1007 is: function ( s ) {
1008 return ( ts.dateRegex[0].test(s) || ts.dateRegex[1].test(s) || ts.dateRegex[2].test(s ));
1009 },
1010 format: function ( s ) {
1011 var match;
1012 s = $.trim( s.toLowerCase() );
1013
1014 if ( ( match = s.match( ts.dateRegex[0] ) ) !== null ) {
1015 if ( mw.config.get( 'wgDefaultDateFormat' ) === 'mdy' || mw.config.get( 'wgContentLanguage' ) === 'en' ) {
1016 s = [ match[3], match[1], match[2] ];
1017 } else if ( mw.config.get( 'wgDefaultDateFormat' ) === 'dmy' ) {
1018 s = [ match[3], match[2], match[1] ];
1019 } else {
1020 // If we get here, we don't know which order the dd-dd-dddd
1021 // date is in. So return something not entirely invalid.
1022 return '99999999';
1023 }
1024 } else if ( ( match = s.match( ts.dateRegex[1] ) ) !== null ) {
1025 s = [ match[3], '' + ts.monthNames[match[2]], match[1] ];
1026 } else if ( ( match = s.match( ts.dateRegex[2] ) ) !== null ) {
1027 s = [ match[3], '' + ts.monthNames[match[1]], match[2] ];
1028 } else {
1029 // Should never get here
1030 return '99999999';
1031 }
1032
1033 // Pad Month and Day
1034 if ( s[1].length === 1 ) {
1035 s[1] = '0' + s[1];
1036 }
1037 if ( s[2].length === 1 ) {
1038 s[2] = '0' + s[2];
1039 }
1040
1041 var y;
1042 if ( ( y = parseInt( s[0], 10) ) < 100 ) {
1043 // Guestimate years without centuries
1044 if ( y < 30 ) {
1045 s[0] = 2000 + y;
1046 } else {
1047 s[0] = 1900 + y;
1048 }
1049 }
1050 while ( s[0].length < 4 ) {
1051 s[0] = '0' + s[0];
1052 }
1053 return parseInt( s.join( '' ), 10 );
1054 },
1055 type: 'numeric'
1056 } );
1057
1058 ts.addParser( {
1059 id: 'time',
1060 is: function ( s ) {
1061 return ts.rgx.time[0].test(s);
1062 },
1063 format: function ( s ) {
1064 return $.tablesorter.formatFloat( new Date( '2000/01/01 ' + s ).getTime() );
1065 },
1066 type: 'numeric'
1067 } );
1068
1069 ts.addParser( {
1070 id: 'number',
1071 is: function ( s ) {
1072 return $.tablesorter.numberRegex.test( $.trim( s ));
1073 },
1074 format: function ( s ) {
1075 return $.tablesorter.formatDigit(s);
1076 },
1077 type: 'numeric'
1078 } );
1079
1080 }( jQuery, mediaWiki ) );
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