Team:Newcastle/Bradleytest/js/sortablejs

/*

 SortTable
 version 2
 7th April 2007
 Stuart Langridge, http://www.kryogenix.org/code/browser/sorttable/
 Instructions:
 Download this file
 Add <script src="sorttable.js"></script> to your HTML
 Add class="sortable" to any table you'd like to make sortable
 Click on the headers to sort
 Thanks to many, many people for contributions and suggestions.
 Licenced as X11: http://www.kryogenix.org/code/browser/licence.html
 This basically means: do what you want with it.
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var stIsIE = /*@cc_on!@*/false;

sorttable = {

 init: function() {
   // quit if this function has already been called
   if (arguments.callee.done) return;
   // flag this function so we don't do the same thing twice
   arguments.callee.done = true;
   // kill the timer
   if (_timer) clearInterval(_timer);
   if (!document.createElement || !document.getElementsByTagName) return;
   sorttable.DATE_RE = /^(\d\d?)[\/\.-](\d\d?)[\/\.-]((\d\d)?\d\d)$/;
   forEach(document.getElementsByTagName('table'), function(table) {
     if (table.className.search(/\bsortable\b/) != -1) {
       sorttable.makeSortable(table);
     }
   });
 },
 makeSortable: function(table) {
   if (table.getElementsByTagName('thead').length == 0) {
     // table doesn't have a tHead. Since it should have, create one and
     // put the first table row in it.
     the = document.createElement('thead');
     the.appendChild(table.rows[0]);
     table.insertBefore(the,table.firstChild);
   }
   // Safari doesn't support table.tHead, sigh
   if (table.tHead == null) table.tHead = table.getElementsByTagName('thead')[0];
   if (table.tHead.rows.length != 1) return; // can't cope with two header rows
   // Sorttable v1 put rows with a class of "sortbottom" at the bottom (as
   // "total" rows, for example). This is B&R, since what you're supposed
   // to do is put them in a tfoot. So, if there are sortbottom rows,
   // for backwards compatibility, move them to tfoot (creating it if needed).
   sortbottomrows = [];
   for (var i=0; i<table.rows.length; i++) {
     if (table.rows[i].className.search(/\bsortbottom\b/) != -1) {
       sortbottomrows[sortbottomrows.length] = table.rows[i];
     }
   }
   if (sortbottomrows) {
     if (table.tFoot == null) {
       // table doesn't have a tfoot. Create one.
       tfo = document.createElement('tfoot');
       table.appendChild(tfo);
     }
     for (var i=0; i<sortbottomrows.length; i++) {
       tfo.appendChild(sortbottomrows[i]);
     }
     delete sortbottomrows;
   }
   // work through each column and calculate its type
   headrow = table.tHead.rows[0].cells;
   for (var i=0; i<headrow.length; i++) {
     // manually override the type with a sorttable_type attribute
     if (!headrow[i].className.match(/\bsorttable_nosort\b/)) { // skip this col
       mtch = headrow[i].className.match(/\bsorttable_([a-z0-9]+)\b/);
       if (mtch) { override = mtch[1]; }

if (mtch && typeof sorttable["sort_"+override] == 'function') { headrow[i].sorttable_sortfunction = sorttable["sort_"+override]; } else { headrow[i].sorttable_sortfunction = sorttable.guessType(table,i); } // make it clickable to sort headrow[i].sorttable_columnindex = i; headrow[i].sorttable_tbody = table.tBodies[0]; dean_addEvent(headrow[i],"click", sorttable.innerSortFunction = function(e) {

         if (this.className.search(/\bsorttable_sorted\b/) != -1) {
           // if we're already sorted by this column, just
           // reverse the table, which is quicker
           sorttable.reverse(this.sorttable_tbody);
           this.className = this.className.replace('sorttable_sorted',
                                                   'sorttable_sorted_reverse');
           this.removeChild(document.getElementById('sorttable_sortfwdind'));
           sortrevind = document.createElement('span');
           sortrevind.id = "sorttable_sortrevind";
           sortrevind.innerHTML = stIsIE ? '&nbsp5' : ' ▴';
           this.appendChild(sortrevind);
           return;
         }
         if (this.className.search(/\bsorttable_sorted_reverse\b/) != -1) {
           // if we're already sorted by this column in reverse, just
           // re-reverse the table, which is quicker
           sorttable.reverse(this.sorttable_tbody);
           this.className = this.className.replace('sorttable_sorted_reverse',
                                                   'sorttable_sorted');
           this.removeChild(document.getElementById('sorttable_sortrevind'));
           sortfwdind = document.createElement('span');
           sortfwdind.id = "sorttable_sortfwdind";
           sortfwdind.innerHTML = stIsIE ? '&nbsp6' : ' ▾';
           this.appendChild(sortfwdind);
           return;
         }
         // remove sorttable_sorted classes
         theadrow = this.parentNode;
         forEach(theadrow.childNodes, function(cell) {
           if (cell.nodeType == 1) { // an element
             cell.className = cell.className.replace('sorttable_sorted_reverse',);
             cell.className = cell.className.replace('sorttable_sorted',);
           }
         });
         sortfwdind = document.getElementById('sorttable_sortfwdind');
         if (sortfwdind) { sortfwdind.parentNode.removeChild(sortfwdind); }
         sortrevind = document.getElementById('sorttable_sortrevind');
         if (sortrevind) { sortrevind.parentNode.removeChild(sortrevind); }
         this.className += ' sorttable_sorted';
         sortfwdind = document.createElement('span');
         sortfwdind.id = "sorttable_sortfwdind";
         sortfwdind.innerHTML = stIsIE ? '&nbsp6' : ' ▾';
         this.appendChild(sortfwdind);

// build an array to sort. This is a Schwartzian transform thing, // i.e., we "decorate" each row with the actual sort key, // sort based on the sort keys, and then put the rows back in order // which is a lot faster because you only do getInnerText once per row row_array = []; col = this.sorttable_columnindex; rows = this.sorttable_tbody.rows; for (var j=0; j<rows.length; j++) { row_array[row_array.length] = [sorttable.getInnerText(rows[j].cells[col]), rows[j]]; } /* If you want a stable sort, uncomment the following line */ //sorttable.shaker_sort(row_array, this.sorttable_sortfunction); /* and comment out this one */ row_array.sort(this.sorttable_sortfunction);

tb = this.sorttable_tbody; for (var j=0; j<row_array.length; j++) { tb.appendChild(row_array[j][1]); }

delete row_array; }); }

   }
 },
 guessType: function(table, column) {
   // guess the type of a column based on its first non-blank row
   sortfn = sorttable.sort_alpha;
   for (var i=0; i<table.tBodies[0].rows.length; i++) {
     text = sorttable.getInnerText(table.tBodies[0].rows[i].cells[column]);
     if (text != ) {
       if (text.match(/^-?[£$¤]?[\d,.]+%?$/)) {
         return sorttable.sort_numeric;
       }
       // check for a date: dd/mm/yyyy or dd/mm/yy
       // can have / or . or - as separator
       // can be mm/dd as well
       possdate = text.match(sorttable.DATE_RE)
       if (possdate) {
         // looks like a date
         first = parseInt(possdate[1]);
         second = parseInt(possdate[2]);
         if (first > 12) {
           // definitely dd/mm
           return sorttable.sort_ddmm;
         } else if (second > 12) {
           return sorttable.sort_mmdd;
         } else {
           // looks like a date, but we can't tell which, so assume
           // that it's dd/mm (English imperialism!) and keep looking
           sortfn = sorttable.sort_ddmm;
         }
       }
     }
   }
   return sortfn;
 },
 getInnerText: function(node) {
   // gets the text we want to use for sorting for a cell.
   // strips leading and trailing whitespace.
   // this is *not* a generic getInnerText function; it's special to sorttable.
   // for example, you can override the cell text with a customkey attribute.
   // it also gets .value for <input> fields.
   if (!node) return "";
   hasInputs = (typeof node.getElementsByTagName == 'function') &&
                node.getElementsByTagName('input').length;
   if (node.getAttribute("sorttable_customkey") != null) {
     return node.getAttribute("sorttable_customkey");
   }
   else if (typeof node.textContent != 'undefined' && !hasInputs) {
     return node.textContent.replace(/^\s+|\s+$/g, );
   }
   else if (typeof node.innerText != 'undefined' && !hasInputs) {
     return node.innerText.replace(/^\s+|\s+$/g, );
   }
   else if (typeof node.text != 'undefined' && !hasInputs) {
     return node.text.replace(/^\s+|\s+$/g, );
   }
   else {
     switch (node.nodeType) {
       case 3:
         if (node.nodeName.toLowerCase() == 'input') {
           return node.value.replace(/^\s+|\s+$/g, );
         }
       case 4:
         return node.nodeValue.replace(/^\s+|\s+$/g, );
         break;
       case 1:
       case 11:
         var innerText = ;
         for (var i = 0; i < node.childNodes.length; i++) {
           innerText += sorttable.getInnerText(node.childNodes[i]);
         }
         return innerText.replace(/^\s+|\s+$/g, );
         break;
       default:
         return ;
     }
   }
 },
 reverse: function(tbody) {
   // reverse the rows in a tbody
   newrows = [];
   for (var i=0; i<tbody.rows.length; i++) {
     newrows[newrows.length] = tbody.rows[i];
   }
   for (var i=newrows.length-1; i>=0; i--) {
      tbody.appendChild(newrows[i]);
   }
   delete newrows;
 },
 /* sort functions
    each sort function takes two parameters, a and b
    you are comparing a[0] and b[0] */
 sort_numeric: function(a,b) {
   aa = parseFloat(a[0].replace(/[^0-9.-]/g,));
   if (isNaN(aa)) aa = 0;
   bb = parseFloat(b[0].replace(/[^0-9.-]/g,));
   if (isNaN(bb)) bb = 0;
   return aa-bb;
 },
 sort_alpha: function(a,b) {
   if (a[0]==b[0]) return 0;
   if (a[0]<b[0]) return -1;
   return 1;
 },
 sort_ddmm: function(a,b) {
   mtch = a[0].match(sorttable.DATE_RE);
   y = mtch[3]; m = mtch[2]; d = mtch[1];
   if (m.length == 1) m = '0'+m;
   if (d.length == 1) d = '0'+d;
   dt1 = y+m+d;
   mtch = b[0].match(sorttable.DATE_RE);
   y = mtch[3]; m = mtch[2]; d = mtch[1];
   if (m.length == 1) m = '0'+m;
   if (d.length == 1) d = '0'+d;
   dt2 = y+m+d;
   if (dt1==dt2) return 0;
   if (dt1<dt2) return -1;
   return 1;
 },
 sort_mmdd: function(a,b) {
   mtch = a[0].match(sorttable.DATE_RE);
   y = mtch[3]; d = mtch[2]; m = mtch[1];
   if (m.length == 1) m = '0'+m;
   if (d.length == 1) d = '0'+d;
   dt1 = y+m+d;
   mtch = b[0].match(sorttable.DATE_RE);
   y = mtch[3]; d = mtch[2]; m = mtch[1];
   if (m.length == 1) m = '0'+m;
   if (d.length == 1) d = '0'+d;
   dt2 = y+m+d;
   if (dt1==dt2) return 0;
   if (dt1<dt2) return -1;
   return 1;
 },
 shaker_sort: function(list, comp_func) {
   // A stable sort function to allow multi-level sorting of data
   // see: http://en.wikipedia.org/wiki/Cocktail_sort
   // thanks to Joseph Nahmias
   var b = 0;
   var t = list.length - 1;
   var swap = true;
   while(swap) {
       swap = false;
       for(var i = b; i < t; ++i) {
           if ( comp_func(list[i], list[i+1]) > 0 ) {
               var q = list[i]; list[i] = list[i+1]; list[i+1] = q;
               swap = true;
           }
       } // for
       t--;
       if (!swap) break;
       for(var i = t; i > b; --i) {
           if ( comp_func(list[i], list[i-1]) < 0 ) {
               var q = list[i]; list[i] = list[i-1]; list[i-1] = q;
               swap = true;
           }
       } // for
       b++;
   } // while(swap)
 }

}

/* ******************************************************************

  Supporting functions: bundled here to avoid depending on a library
  ****************************************************************** */

// Dean Edwards/Matthias Miller/John Resig

/* for Mozilla/Opera9 */ if (document.addEventListener) {

   document.addEventListener("DOMContentLoaded", sorttable.init, false);

}

/* for Internet Explorer */ /*@cc_on @*/ /*@if (@_win32)

   document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>");
   var script = document.getElementById("__ie_onload");
   script.onreadystatechange = function() {
       if (this.readyState == "complete") {
           sorttable.init(); // call the onload handler
       }
   };

/*@end @*/

/* for Safari */ if (/WebKit/i.test(navigator.userAgent)) { // sniff

   var _timer = setInterval(function() {
       if (/loaded|complete/.test(document.readyState)) {
           sorttable.init(); // call the onload handler
       }
   }, 10);

}

/* for other browsers */ window.onload = sorttable.init;

// written by Dean Edwards, 2005 // with input from Tino Zijdel, Matthias Miller, Diego Perini

// http://dean.edwards.name/weblog/2005/10/add-event/

function dean_addEvent(element, type, handler) { if (element.addEventListener) { element.addEventListener(type, handler, false); } else { // assign each event handler a unique ID if (!handler.$$guid) handler.$$guid = dean_addEvent.guid++; // create a hash table of event types for the element if (!element.events) element.events = {}; // create a hash table of event handlers for each element/event pair var handlers = element.events[type]; if (!handlers) { handlers = element.events[type] = {}; // store the existing event handler (if there is one) if (element["on" + type]) { handlers[0] = element["on" + type]; } } // store the event handler in the hash table handlers[handler.$$guid] = handler; // assign a global event handler to do all the work element["on" + type] = handleEvent; } }; // a counter used to create unique IDs dean_addEvent.guid = 1;

function removeEvent(element, type, handler) { if (element.removeEventListener) { element.removeEventListener(type, handler, false); } else { // delete the event handler from the hash table if (element.events && element.events[type]) { delete element.events[type][handler.$$guid]; } } };

function handleEvent(event) { var returnValue = true; // grab the event object (IE uses a global event object) event = event || fixEvent(((this.ownerDocument || this.document || this).parentWindow || window).event); // get a reference to the hash table of event handlers var handlers = this.events[event.type]; // execute each event handler for (var i in handlers) { this.$$handleEvent = handlers[i]; if (this.$$handleEvent(event) === false) { returnValue = false; } } return returnValue; };

function fixEvent(event) { // add W3C standard event methods event.preventDefault = fixEvent.preventDefault; event.stopPropagation = fixEvent.stopPropagation; return event; }; fixEvent.preventDefault = function() { this.returnValue = false; }; fixEvent.stopPropagation = function() {

 this.cancelBubble = true;

}

// Dean's forEach: http://dean.edwards.name/base/forEach.js /* forEach, version 1.0 Copyright 2006, Dean Edwards License: http://www.opensource.org/licenses/mit-license.php

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// array-like enumeration if (!Array.forEach) { // mozilla already supports this Array.forEach = function(array, block, context) { for (var i = 0; i < array.length; i++) { block.call(context, array[i], i, array); } }; }

// generic enumeration Function.prototype.forEach = function(object, block, context) { for (var key in object) { if (typeof this.prototype[key] == "undefined") { block.call(context, object[key], key, object); } } };

// character enumeration String.forEach = function(string, block, context) { Array.forEach(string.split(""), function(chr, index) { block.call(context, chr, index, string); }); };

// globally resolve forEach enumeration var forEach = function(object, block, context) { if (object) { var resolve = Object; // default if (object instanceof Function) { // functions have a "length" property resolve = Function; } else if (object.forEach instanceof Function) { // the object implements a custom forEach method so use that object.forEach(block, context); return; } else if (typeof object == "string") { // the object is a string resolve = String; } else if (typeof object.length == "number") { // the object is array-like resolve = Array; } resolve.forEach(object, block, context); } };