5 Stuart Langridge, http://www.kryogenix.org/code/browser/sorttable/
9 Add <script src="sorttable.js"></script> to your HTML
10 Add class="sortable" to any table you'd like to make sortable
11 Click on the headers to sort
13 Thanks to many, many people for contributions and suggestions.
14 Licenced as X11: http://www.kryogenix.org/code/browser/licence.html
15 This basically means: do what you want with it.
19 var stIsIE = /*@cc_on!@*/false;
23 // quit if this function has already been called
24 if (arguments.callee.done) return;
25 // flag this function so we don't do the same thing twice
26 arguments.callee.done = true;
28 if (_timer) clearInterval(_timer);
30 if (!document.createElement || !document.getElementsByTagName) return;
32 sorttable.DATE_RE = /^(\d\d?)[\/\.-](\d\d?)[\/\.-]((\d\d)?\d\d)$/;
34 forEach(document.getElementsByTagName('table'), function(table) {
35 if (table.className.search(/\bsortable\b/) != -1) {
36 sorttable.makeSortable(table);
42 makeSortable: function(table) {
43 if (table.getElementsByTagName('thead').length == 0) {
44 // table doesn't have a tHead. Since it should have, create one and
45 // put the first table row in it.
46 the = document.createElement('thead');
47 the.appendChild(table.rows[0]);
48 table.insertBefore(the,table.firstChild);
50 // Safari doesn't support table.tHead, sigh
51 if (table.tHead == null) table.tHead = table.getElementsByTagName('thead')[0];
53 if (table.tHead.rows.length != 1) return; // can't cope with two header rows
55 // Sorttable v1 put rows with a class of "sortbottom" at the bottom (as
56 // "total" rows, for example). This is B&R, since what you're supposed
57 // to do is put them in a tfoot. So, if there are sortbottom rows,
58 // for backwards compatibility, move them to tfoot (creating it if needed).
60 for (var i=0; i<table.rows.length; i++) {
61 if (table.rows[i].className.search(/\bsortbottom\b/) != -1) {
62 sortbottomrows[sortbottomrows.length] = table.rows[i];
66 if (table.tFoot == null) {
67 // table doesn't have a tfoot. Create one.
68 tfo = document.createElement('tfoot');
69 table.appendChild(tfo);
71 for (var i=0; i<sortbottomrows.length; i++) {
72 tfo.appendChild(sortbottomrows[i]);
74 delete sortbottomrows;
77 // work through each column and calculate its type
78 headrow = table.tHead.rows[0].cells;
79 for (var i=0; i<headrow.length; i++) {
80 // manually override the type with a sorttable_type attribute
81 if (!headrow[i].className.match(/\bsorttable_nosort\b/)) { // skip this col
82 mtch = headrow[i].className.match(/\bsorttable_([a-z0-9]+)\b/);
83 if (mtch) { override = mtch[1]; }
84 if (mtch && typeof sorttable["sort_"+override] == 'function') {
85 headrow[i].sorttable_sortfunction = sorttable["sort_"+override];
87 headrow[i].sorttable_sortfunction = sorttable.guessType(table,i);
89 // make it clickable to sort
90 headrow[i].sorttable_columnindex = i;
91 headrow[i].sorttable_tbody = table.tBodies[0];
92 dean_addEvent(headrow[i],"click", function(e) {
94 if (this.className.search(/\bsorttable_sorted\b/) != -1) {
95 // if we're already sorted by this column, just
96 // reverse the table, which is quicker
97 sorttable.reverse(this.sorttable_tbody);
98 this.className = this.className.replace('sorttable_sorted',
99 'sorttable_sorted_reverse');
100 this.removeChild(document.getElementById('sorttable_sortfwdind'));
101 sortrevind = document.createElement('span');
102 sortrevind.id = "sorttable_sortrevind";
103 sortrevind.innerHTML = stIsIE ? ' <font face="webdings">5</font>' : ' ▴';
104 this.appendChild(sortrevind);
107 if (this.className.search(/\bsorttable_sorted_reverse\b/) != -1) {
108 // if we're already sorted by this column in reverse, just
109 // re-reverse the table, which is quicker
110 sorttable.reverse(this.sorttable_tbody);
111 this.className = this.className.replace('sorttable_sorted_reverse',
113 this.removeChild(document.getElementById('sorttable_sortrevind'));
114 sortfwdind = document.createElement('span');
115 sortfwdind.id = "sorttable_sortfwdind";
116 sortfwdind.innerHTML = stIsIE ? ' <font face="webdings">6</font>' : ' ▾';
117 this.appendChild(sortfwdind);
121 // remove sorttable_sorted classes
122 theadrow = this.parentNode;
123 forEach(theadrow.childNodes, function(cell) {
124 if (cell.nodeType == 1) { // an element
125 cell.className = cell.className.replace('sorttable_sorted_reverse','');
126 cell.className = cell.className.replace('sorttable_sorted','');
129 sortfwdind = document.getElementById('sorttable_sortfwdind');
130 if (sortfwdind) { sortfwdind.parentNode.removeChild(sortfwdind); }
131 sortrevind = document.getElementById('sorttable_sortrevind');
132 if (sortrevind) { sortrevind.parentNode.removeChild(sortrevind); }
134 this.className += ' sorttable_sorted';
135 sortfwdind = document.createElement('span');
136 sortfwdind.id = "sorttable_sortfwdind";
137 sortfwdind.innerHTML = stIsIE ? ' <font face="webdings">6</font>' : ' ▾';
138 this.appendChild(sortfwdind);
140 // build an array to sort. This is a Schwartzian transform thing,
141 // i.e., we "decorate" each row with the actual sort key,
142 // sort based on the sort keys, and then put the rows back in order
143 // which is a lot faster because you only do getInnerText once per row
145 col = this.sorttable_columnindex;
146 rows = this.sorttable_tbody.rows;
147 for (var j=0; j<rows.length; j++) {
148 row_array[row_array.length] = [sorttable.getInnerText(rows[j].cells[col]), rows[j]];
150 /* If you want a stable sort, uncomment the following line */
151 //sorttable.shaker_sort(row_array, this.sorttable_sortfunction);
152 /* and comment out this one */
153 row_array.sort(this.sorttable_sortfunction);
155 tb = this.sorttable_tbody;
156 for (var j=0; j<row_array.length; j++) {
157 tb.appendChild(row_array[j][1]);
166 guessType: function(table, column) {
167 // guess the type of a column based on its first non-blank row
168 sortfn = sorttable.sort_alpha;
169 for (var i=0; i<table.tBodies[0].rows.length; i++) {
170 text = sorttable.getInnerText(table.tBodies[0].rows[i].cells[column]);
172 if (text.match(/^-?[£$¤]?[\d,.]+%?$/)) {
173 return sorttable.sort_numeric;
175 // check for a date: dd/mm/yyyy or dd/mm/yy
176 // can have / or . or - as separator
177 // can be mm/dd as well
178 possdate = text.match(sorttable.DATE_RE)
181 first = parseInt(possdate[1]);
182 second = parseInt(possdate[2]);
185 return sorttable.sort_ddmm;
186 } else if (second > 12) {
187 return sorttable.sort_mmdd;
189 // looks like a date, but we can't tell which, so assume
190 // that it's dd/mm (English imperialism!) and keep looking
191 sortfn = sorttable.sort_ddmm;
199 getInnerText: function(node) {
200 // gets the text we want to use for sorting for a cell.
201 // strips leading and trailing whitespace.
202 // this is *not* a generic getInnerText function; it's special to sorttable.
203 // for example, you can override the cell text with a customkey attribute.
204 // it also gets .value for <input> fields.
206 if (!node) return "";
208 hasInputs = (typeof node.getElementsByTagName == 'function') &&
209 node.getElementsByTagName('input').length;
211 if (node.getAttribute("sorttable_customkey") != null) {
212 return node.getAttribute("sorttable_customkey");
214 else if (typeof node.textContent != 'undefined' && !hasInputs) {
215 return node.textContent.replace(/^\s+|\s+$/g, '');
217 else if (typeof node.innerText != 'undefined' && !hasInputs) {
218 return node.innerText.replace(/^\s+|\s+$/g, '');
220 else if (typeof node.text != 'undefined' && !hasInputs) {
221 return node.text.replace(/^\s+|\s+$/g, '');
224 switch (node.nodeType) {
226 if (node.nodeName.toLowerCase() == 'input') {
227 return node.value.replace(/^\s+|\s+$/g, '');
230 return node.nodeValue.replace(/^\s+|\s+$/g, '');
235 for (var i = 0; i < node.childNodes.length; i++) {
236 innerText += sorttable.getInnerText(node.childNodes[i]);
238 return innerText.replace(/^\s+|\s+$/g, '');
246 reverse: function(tbody) {
247 // reverse the rows in a tbody
249 for (var i=0; i<tbody.rows.length; i++) {
250 newrows[newrows.length] = tbody.rows[i];
252 for (var i=newrows.length-1; i>=0; i--) {
253 tbody.appendChild(newrows[i]);
259 each sort function takes two parameters, a and b
260 you are comparing a[0] and b[0] */
261 sort_numeric: function(a,b) {
262 aa = parseFloat(a[0].replace(/[^0-9.-]/g,''));
263 if (isNaN(aa)) aa = 0;
264 bb = parseFloat(b[0].replace(/[^0-9.-]/g,''));
265 if (isNaN(bb)) bb = 0;
268 sort_alpha: function(a,b) {
269 if (a[0]==b[0]) return 0;
270 if (a[0]<b[0]) return -1;
273 sort_ddmm: function(a,b) {
274 mtch = a[0].match(sorttable.DATE_RE);
275 y = mtch[3]; m = mtch[2]; d = mtch[1];
276 if (m.length == 1) m = '0'+m;
277 if (d.length == 1) d = '0'+d;
279 mtch = b[0].match(sorttable.DATE_RE);
280 y = mtch[3]; m = mtch[2]; d = mtch[1];
281 if (m.length == 1) m = '0'+m;
282 if (d.length == 1) d = '0'+d;
284 if (dt1==dt2) return 0;
285 if (dt1<dt2) return -1;
288 sort_mmdd: function(a,b) {
289 mtch = a[0].match(sorttable.DATE_RE);
290 y = mtch[3]; d = mtch[2]; m = mtch[1];
291 if (m.length == 1) m = '0'+m;
292 if (d.length == 1) d = '0'+d;
294 mtch = b[0].match(sorttable.DATE_RE);
295 y = mtch[3]; d = mtch[2]; m = mtch[1];
296 if (m.length == 1) m = '0'+m;
297 if (d.length == 1) d = '0'+d;
299 if (dt1==dt2) return 0;
300 if (dt1<dt2) return -1;
304 shaker_sort: function(list, comp_func) {
305 // A stable sort function to allow multi-level sorting of data
306 // see: http://en.wikipedia.org/wiki/Cocktail_sort
307 // thanks to Joseph Nahmias
309 var t = list.length - 1;
314 for(var i = b; i < t; ++i) {
315 if ( comp_func(list[i], list[i+1]) > 0 ) {
316 var q = list[i]; list[i] = list[i+1]; list[i+1] = q;
324 for(var i = t; i > b; --i) {
325 if ( comp_func(list[i], list[i-1]) < 0 ) {
326 var q = list[i]; list[i] = list[i-1]; list[i-1] = q;
336 /* ******************************************************************
337 Supporting functions: bundled here to avoid depending on a library
338 ****************************************************************** */
340 // Dean Edwards/Matthias Miller/John Resig
342 /* for Mozilla/Opera9 */
343 if (document.addEventListener) {
344 document.addEventListener("DOMContentLoaded", sorttable.init, false);
347 /* for Internet Explorer */
350 document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>");
351 var script = document.getElementById("__ie_onload");
352 script.onreadystatechange = function() {
353 if (this.readyState == "complete") {
354 sorttable.init(); // call the onload handler
360 if (/WebKit/i.test(navigator.userAgent)) { // sniff
361 var _timer = setInterval(function() {
362 if (/loaded|complete/.test(document.readyState)) {
363 sorttable.init(); // call the onload handler
368 /* for other browsers */
369 window.onload = sorttable.init;
371 // written by Dean Edwards, 2005
372 // with input from Tino Zijdel, Matthias Miller, Diego Perini
374 // http://dean.edwards.name/weblog/2005/10/add-event/
376 function dean_addEvent(element, type, handler) {
377 if (element.addEventListener) {
378 element.addEventListener(type, handler, false);
380 // assign each event handler a unique ID
381 if (!handler.$$guid) handler.$$guid = dean_addEvent.guid++;
382 // create a hash table of event types for the element
383 if (!element.events) element.events = {};
384 // create a hash table of event handlers for each element/event pair
385 var handlers = element.events[type];
387 handlers = element.events[type] = {};
388 // store the existing event handler (if there is one)
389 if (element["on" + type]) {
390 handlers[0] = element["on" + type];
393 // store the event handler in the hash table
394 handlers[handler.$$guid] = handler;
395 // assign a global event handler to do all the work
396 element["on" + type] = handleEvent;
399 // a counter used to create unique IDs
400 dean_addEvent.guid = 1;
402 function removeEvent(element, type, handler) {
403 if (element.removeEventListener) {
404 element.removeEventListener(type, handler, false);
406 // delete the event handler from the hash table
407 if (element.events && element.events[type]) {
408 delete element.events[type][handler.$$guid];
413 function handleEvent(event) {
414 var returnValue = true;
415 // grab the event object (IE uses a global event object)
416 event = event || fixEvent(((this.ownerDocument || this.document || this).parentWindow || window).event);
417 // get a reference to the hash table of event handlers
418 var handlers = this.events[event.type];
419 // execute each event handler
420 for (var i in handlers) {
421 this.$$handleEvent = handlers[i];
422 if (this.$$handleEvent(event) === false) {
429 function fixEvent(event) {
430 // add W3C standard event methods
431 event.preventDefault = fixEvent.preventDefault;
432 event.stopPropagation = fixEvent.stopPropagation;
435 fixEvent.preventDefault = function() {
436 this.returnValue = false;
438 fixEvent.stopPropagation = function() {
439 this.cancelBubble = true;
442 // Dean's forEach: http://dean.edwards.name/base/forEach.js
445 Copyright 2006, Dean Edwards
446 License: http://www.opensource.org/licenses/mit-license.php
449 // array-like enumeration
450 if (!Array.forEach) { // mozilla already supports this
451 Array.forEach = function(array, block, context) {
452 for (var i = 0; i < array.length; i++) {
453 block.call(context, array[i], i, array);
458 // generic enumeration
459 Function.prototype.forEach = function(object, block, context) {
460 for (var key in object) {
461 if (typeof this.prototype[key] == "undefined") {
462 block.call(context, object[key], key, object);
467 // character enumeration
468 String.forEach = function(string, block, context) {
469 Array.forEach(string.split(""), function(chr, index) {
470 block.call(context, chr, index, string);
474 // globally resolve forEach enumeration
475 var forEach = function(object, block, context) {
477 var resolve = Object; // default
478 if (object instanceof Function) {
479 // functions have a "length" property
481 } else if (object.forEach instanceof Function) {
482 // the object implements a custom forEach method so use that
483 object.forEach(block, context);
485 } else if (typeof object == "string") {
486 // the object is a string
488 } else if (typeof object.length == "number") {
489 // the object is array-like
492 resolve.forEach(object, block, context);