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 19var stIsIE = /*@cc_on!@*/false; 20 21sorttable = { 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 backwards 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 */ 341if (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 */ 358if (/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 */ 367window.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 374function 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.$$guid] = handler; 393 // assign a global event handler to do all the work 394 element["on" + type] = handleEvent; 395 } 396}; 397// a counter used to create unique IDs 398dean_addEvent.guid = 1; 399 400function removeEvent(element, type, handler) { 401 if (element.removeEventListener) { 402 element.removeEventListener(type, handler, false); 403 } else { 404 // delete the event handler from the hash table 405 if (element.events && element.events[type]) { 406 delete element.events[type][handler.$$guid]; 407 } 408 } 409}; 410 411function 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 427function fixEvent(event) { 428 // add W3C standard event methods 429 event.preventDefault = fixEvent.preventDefault; 430 event.stopPropagation = fixEvent.stopPropagation; 431 return event; 432}; 433fixEvent.preventDefault = function() { 434 this.returnValue = false; 435}; 436fixEvent.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 448if (!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 457Function.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 466String.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 473var 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}; 493 494