1 | /* |
2 | SortTable |
3 | version 2 |
4 | 7th April 2007 |
5 | Stuart Langridge, http://www.kryogenix.org/code/browser/sorttable/ |
6 | |
7 | Instructions: |
8 | Download this file |
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 |
12 | |
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. |
16 | */ |
17 | |
18 | |
19 | var stIsIE = /*@cc_on!@*/false; |
20 | |
21 | sorttable = { |
22 | init: function() { |
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; |
27 | // kill the timer |
28 | if (_timer) clearInterval(_timer); |
29 | |
30 | if (!document.createElement || !document.getElementsByTagName) return; |
31 | |
32 | sorttable.DATE_RE = /^(\d\d?)[\/\.-](\d\d?)[\/\.-]((\d\d)?\d\d)$/; |
33 | |
34 | forEach(document.getElementsByTagName('table'), function(table) { |
35 | if (table.className.search(/\bsortable\b/) != -1) { |
36 | sorttable.makeSortable(table); |
37 | } |
38 | }); |
39 | |
40 | }, |
41 | |
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); |
49 | } |
50 | // Safari doesn't support table.tHead, sigh |
51 | if (table.tHead == null) table.tHead = table.getElementsByTagName('thead')[0]; |
52 | |
53 | if (table.tHead.rows.length != 1) return; // can't cope with two header rows |
54 | |
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 backward compatibility, move them to tfoot (creating it if needed). |
59 | sortbottomrows = []; |
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]; |
63 | } |
64 | } |
65 | if (sortbottomrows) { |
66 | if (table.tFoot == null) { |
67 | // table doesn't have a tfoot. Create one. |
68 | tfo = document.createElement('tfoot'); |
69 | table.appendChild(tfo); |
70 | } |
71 | for (var i=0; i<sortbottomrows.length; i++) { |
72 | tfo.appendChild(sortbottomrows[i]); |
73 | } |
74 | delete sortbottomrows; |
75 | } |
76 | |
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]; |
86 | } else { |
87 | headrow[i].sorttable_sortfunction = sorttable.guessType(table,i); |
88 | } |
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) { |
93 | |
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); |
105 | return; |
106 | } |
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', |
112 | 'sorttable_sorted'); |
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); |
118 | return; |
119 | } |
120 | |
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',''); |
127 | } |
128 | }); |
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); } |
133 | |
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); |
139 | |
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 |
144 | row_array = []; |
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]]; |
149 | } |
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); |
154 | |
155 | tb = this.sorttable_tbody; |
156 | for (var j=0; j<row_array.length; j++) { |
157 | tb.appendChild(row_array[j][1]); |
158 | } |
159 | |
160 | delete row_array; |
161 | }); |
162 | } |
163 | } |
164 | }, |
165 | |
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]); |
171 | if (text != '') { |
172 | if (text.match(/^-?[£$¤]?[\d,.]+%?$/)) { |
173 | return sorttable.sort_numeric; |
174 | } |
175 | // check for a date: dd/mm/yyyy or dd/mm/yy |
176 | // can have / or . or - as separator |
177 | // can be mm/dd as well |
178 | possdate = text.match(sorttable.DATE_RE) |
179 | if (possdate) { |
180 | // looks like a date |
181 | first = parseInt(possdate[1]); |
182 | second = parseInt(possdate[2]); |
183 | if (first > 12) { |
184 | // definitely dd/mm |
185 | return sorttable.sort_ddmm; |
186 | } else if (second > 12) { |
187 | return sorttable.sort_mmdd; |
188 | } else { |
189 | // looks like a date, but we can't tell which, so assume |
190 | // that it's dd/mm (English imperialism!) and keep looking |
191 | sortfn = sorttable.sort_ddmm; |
192 | } |
193 | } |
194 | } |
195 | } |
196 | return sortfn; |
197 | }, |
198 | |
199 | getInnerText: function(node) { |
200 | // gets the text we want to use for sorting for a cell. |
201 | // strips leading and trailing whitespace. |
202 | // this is *not* a generic getInnerText function; it's special to sorttable. |
203 | // for example, you can override the cell text with a customkey attribute. |
204 | // it also gets .value for <input> fields. |
205 | |
206 | hasInputs = (typeof node.getElementsByTagName == 'function') && |
207 | node.getElementsByTagName('input').length; |
208 | |
209 | if (node.getAttribute("sorttable_customkey") != null) { |
210 | return node.getAttribute("sorttable_customkey"); |
211 | } |
212 | else if (typeof node.textContent != 'undefined' && !hasInputs) { |
213 | return node.textContent.replace(/^\s+|\s+$/g, ''); |
214 | } |
215 | else if (typeof node.innerText != 'undefined' && !hasInputs) { |
216 | return node.innerText.replace(/^\s+|\s+$/g, ''); |
217 | } |
218 | else if (typeof node.text != 'undefined' && !hasInputs) { |
219 | return node.text.replace(/^\s+|\s+$/g, ''); |
220 | } |
221 | else { |
222 | switch (node.nodeType) { |
223 | case 3: |
224 | if (node.nodeName.toLowerCase() == 'input') { |
225 | return node.value.replace(/^\s+|\s+$/g, ''); |
226 | } |
227 | case 4: |
228 | return node.nodeValue.replace(/^\s+|\s+$/g, ''); |
229 | break; |
230 | case 1: |
231 | case 11: |
232 | var innerText = ''; |
233 | for (var i = 0; i < node.childNodes.length; i++) { |
234 | innerText += sorttable.getInnerText(node.childNodes[i]); |
235 | } |
236 | return innerText.replace(/^\s+|\s+$/g, ''); |
237 | break; |
238 | default: |
239 | return ''; |
240 | } |
241 | } |
242 | }, |
243 | |
244 | reverse: function(tbody) { |
245 | // reverse the rows in a tbody |
246 | newrows = []; |
247 | for (var i=0; i<tbody.rows.length; i++) { |
248 | newrows[newrows.length] = tbody.rows[i]; |
249 | } |
250 | for (var i=newrows.length-1; i>=0; i--) { |
251 | tbody.appendChild(newrows[i]); |
252 | } |
253 | delete newrows; |
254 | }, |
255 | |
256 | /* sort functions |
257 | each sort function takes two parameters, a and b |
258 | you are comparing a[0] and b[0] */ |
259 | sort_numeric: function(a,b) { |
260 | aa = parseFloat(a[0].replace(/[^0-9.-]/g,'')); |
261 | if (isNaN(aa)) aa = 0; |
262 | bb = parseFloat(b[0].replace(/[^0-9.-]/g,'')); |
263 | if (isNaN(bb)) bb = 0; |
264 | return aa-bb; |
265 | }, |
266 | sort_alpha: function(a,b) { |
267 | if (a[0]==b[0]) return 0; |
268 | if (a[0]<b[0]) return -1; |
269 | return 1; |
270 | }, |
271 | sort_ddmm: function(a,b) { |
272 | mtch = a[0].match(sorttable.DATE_RE); |
273 | y = mtch[3]; m = mtch[2]; d = mtch[1]; |
274 | if (m.length == 1) m = '0'+m; |
275 | if (d.length == 1) d = '0'+d; |
276 | dt1 = y+m+d; |
277 | mtch = b[0].match(sorttable.DATE_RE); |
278 | y = mtch[3]; m = mtch[2]; d = mtch[1]; |
279 | if (m.length == 1) m = '0'+m; |
280 | if (d.length == 1) d = '0'+d; |
281 | dt2 = y+m+d; |
282 | if (dt1==dt2) return 0; |
283 | if (dt1<dt2) return -1; |
284 | return 1; |
285 | }, |
286 | sort_mmdd: function(a,b) { |
287 | mtch = a[0].match(sorttable.DATE_RE); |
288 | y = mtch[3]; d = mtch[2]; m = mtch[1]; |
289 | if (m.length == 1) m = '0'+m; |
290 | if (d.length == 1) d = '0'+d; |
291 | dt1 = y+m+d; |
292 | mtch = b[0].match(sorttable.DATE_RE); |
293 | y = mtch[3]; d = mtch[2]; m = mtch[1]; |
294 | if (m.length == 1) m = '0'+m; |
295 | if (d.length == 1) d = '0'+d; |
296 | dt2 = y+m+d; |
297 | if (dt1==dt2) return 0; |
298 | if (dt1<dt2) return -1; |
299 | return 1; |
300 | }, |
301 | |
302 | shaker_sort: function(list, comp_func) { |
303 | // A stable sort function to allow multi-level sorting of data |
304 | // see: http://en.wikipedia.org/wiki/Cocktail_sort |
305 | // thanks to Joseph Nahmias |
306 | var b = 0; |
307 | var t = list.length - 1; |
308 | var swap = true; |
309 | |
310 | while(swap) { |
311 | swap = false; |
312 | for(var i = b; i < t; ++i) { |
313 | if ( comp_func(list[i], list[i+1]) > 0 ) { |
314 | var q = list[i]; list[i] = list[i+1]; list[i+1] = q; |
315 | swap = true; |
316 | } |
317 | } // for |
318 | t--; |
319 | |
320 | if (!swap) break; |
321 | |
322 | for(var i = t; i > b; --i) { |
323 | if ( comp_func(list[i], list[i-1]) < 0 ) { |
324 | var q = list[i]; list[i] = list[i-1]; list[i-1] = q; |
325 | swap = true; |
326 | } |
327 | } // for |
328 | b++; |
329 | |
330 | } // while(swap) |
331 | } |
332 | } |
333 | |
334 | /* ****************************************************************** |
335 | Supporting functions: bundled here to avoid depending on a library |
336 | ****************************************************************** */ |
337 | |
338 | // Dean Edwards/Matthias Miller/John Resig |
339 | |
340 | /* for Mozilla/Opera9 */ |
341 | if (document.addEventListener) { |
342 | document.addEventListener("DOMContentLoaded", sorttable.init, false); |
343 | } |
344 | |
345 | /* for Internet Explorer */ |
346 | /*@cc_on @*/ |
347 | /*@if (@_win32) |
348 | document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>"); |
349 | var script = document.getElementById("__ie_onload"); |
350 | script.onreadystatechange = function() { |
351 | if (this.readyState == "complete") { |
352 | sorttable.init(); // call the onload handler |
353 | } |
354 | }; |
355 | /*@end @*/ |
356 | |
357 | /* for Safari */ |
358 | if (/WebKit/i.test(navigator.userAgent)) { // sniff |
359 | var _timer = setInterval(function() { |
360 | if (/loaded|complete/.test(document.readyState)) { |
361 | sorttable.init(); // call the onload handler |
362 | } |
363 | }, 10); |
364 | } |
365 | |
366 | /* for other browsers */ |
367 | window.onload = sorttable.init; |
368 | |
369 | // written by Dean Edwards, 2005 |
370 | // with input from Tino Zijdel, Matthias Miller, Diego Perini |
371 | |
372 | // http://dean.edwards.name/weblog/2005/10/add-event/ |
373 | |
374 | function dean_addEvent(element, type, handler) { |
375 | if (element.addEventListener) { |
376 | element.addEventListener(type, handler, false); |
377 | } else { |
378 | // assign each event handler a unique ID |
379 | if (!handler.$$guid) handler.$$guid = dean_addEvent.guid++; |
380 | // create a hash table of event types for the element |
381 | if (!element.events) element.events = {}; |
382 | // create a hash table of event handlers for each element/event pair |
383 | var handlers = element.events[type]; |
384 | if (!handlers) { |
385 | handlers = element.events[type] = {}; |
386 | // store the existing event handler (if there is one) |
387 | if (element["on" + type]) { |
388 | handlers[0] = element["on" + type]; |
389 | } |
390 | } |
391 | // store the event handler in the hash table |
392 | handlers[handler.$$guid] = handler; |
393 | // assign a global event handler to do all the work |
394 | element["on" + type] = handleEvent; |
395 | } |
396 | }; |
397 | // a counter used to create unique IDs |
398 | dean_addEvent.guid = 1; |
399 | |
400 | function removeEvent(element, type, handler) { |
401 | if (element.removeEventListener) { |
402 | element.removeEventListener(type, handler, false); |
403 | } else { |
404 | // delete the event handler from the hash table |
405 | if (element.events && element.events[type]) { |
406 | delete element.events[type][handler.$$guid]; |
407 | } |
408 | } |
409 | }; |
410 | |
411 | function handleEvent(event) { |
412 | var returnValue = true; |
413 | // grab the event object (IE uses a global event object) |
414 | event = event || fixEvent(((this.ownerDocument || this.document || this).parentWindow || window).event); |
415 | // get a reference to the hash table of event handlers |
416 | var handlers = this.events[event.type]; |
417 | // execute each event handler |
418 | for (var i in handlers) { |
419 | this.$$handleEvent = handlers[i]; |
420 | if (this.$$handleEvent(event) === false) { |
421 | returnValue = false; |
422 | } |
423 | } |
424 | return returnValue; |
425 | }; |
426 | |
427 | function fixEvent(event) { |
428 | // add W3C standard event methods |
429 | event.preventDefault = fixEvent.preventDefault; |
430 | event.stopPropagation = fixEvent.stopPropagation; |
431 | return event; |
432 | }; |
433 | fixEvent.preventDefault = function() { |
434 | this.returnValue = false; |
435 | }; |
436 | fixEvent.stopPropagation = function() { |
437 | this.cancelBubble = true; |
438 | } |
439 | |
440 | // Dean's forEach: http://dean.edwards.name/base/forEach.js |
441 | /* |
442 | forEach, version 1.0 |
443 | Copyright 2006, Dean Edwards |
444 | License: http://www.opensource.org/licenses/mit-license.php |
445 | */ |
446 | |
447 | // array-like enumeration |
448 | if (!Array.forEach) { // mozilla already supports this |
449 | Array.forEach = function(array, block, context) { |
450 | for (var i = 0; i < array.length; i++) { |
451 | block.call(context, array[i], i, array); |
452 | } |
453 | }; |
454 | } |
455 | |
456 | // generic enumeration |
457 | Function.prototype.forEach = function(object, block, context) { |
458 | for (var key in object) { |
459 | if (typeof this.prototype[key] == "undefined") { |
460 | block.call(context, object[key], key, object); |
461 | } |
462 | } |
463 | }; |
464 | |
465 | // character enumeration |
466 | String.forEach = function(string, block, context) { |
467 | Array.forEach(string.split(""), function(chr, index) { |
468 | block.call(context, chr, index, string); |
469 | }); |
470 | }; |
471 | |
472 | // globally resolve forEach enumeration |
473 | var forEach = function(object, block, context) { |
474 | if (object) { |
475 | var resolve = Object; // default |
476 | if (object instanceof Function) { |
477 | // functions have a "length" property |
478 | resolve = Function; |
479 | } else if (object.forEach instanceof Function) { |
480 | // the object implements a custom forEach method so use that |
481 | object.forEach(block, context); |
482 | return; |
483 | } else if (typeof object == "string") { |
484 | // the object is a string |
485 | resolve = String; |
486 | } else if (typeof object.length == "number") { |
487 | // the object is array-like |
488 | resolve = Array; |
489 | } |
490 | resolve.forEach(object, block, context); |
491 | } |
492 | }; |
493 | |