/*
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.
*/
var stIsIE = 0;
if (navigator.appVersion.indexOf("MSIE") != -1) {
stIsIE = 1;
}
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;
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) {
var customMethodName = table.getAttribute("custom-sort-method");
if (customMethodName) {
sorttable.makeSortable(table, customMethodName);
} else {
sorttable.makeSortable(table);
}
}
});
},
makeSortable: function(table, customClickHanderName) {
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 creating the table head made an empty tbody element nuke it
var tBody = table.getElementsByTagName("tbody");
if (tBody.length > 1) {
var is_empty = 1;
for (var i = 0; i < tBody[0].childNodes.length; i++) {
if (tBody[0].childNodes[i].nodeType != 3) {
is_empty = 0;
break;
}
}
if (is_empty) {
table.removeChild(tBody[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/) &&
!( headrow[i].getAttribute("nonsortable") != null && headrow[i].getAttribute("nonsortable").length > 0 ) ) {
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];
headrow[i].className += " clickable";
sorttable.initializeHeader(headrow[i]);
// Build the sort handler
dean_addEvent(headrow[i], "click", function(e) {
var customClickHandler = null;
if (customClickHanderName) {
customClickHandler = window[customClickHanderName];
}
if (this.className.search(/\bsorttable_sorted\b/) != -1) {
// if we're already sorted by this column, just
// reverse the table, which is quicker
if (!customClickHanderName) {
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.className = "sortable_reverse";
sortrevind.innerHTML = stIsIE ? ' <font face="webdings">5</font>' : " ▴";
this.appendChild(sortrevind);
if (customClickHandler) {
// Normalize the event for ie.
if (!e.currentTarget) {
e.currentTarget = this;
}
customClickHandler(e);
}
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
if (!customClickHanderName) {
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.className = "sortable_forward";
sortfwdind.innerHTML = stIsIE ? ' <font face="webdings">6</font>' : " ▾";
this.appendChild(sortfwdind);
if (customClickHandler) {
// Normalize the event for ie.
if (!e.currentTarget) {
e.currentTarget = this;
}
customClickHandler(e);
}
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);
}
// Customize the initial direction for this column.
var isDefaultReverse = this.getAttribute("sortable-default-reverse") === "1";
if (!isDefaultReverse) {
this.className += " sorttable_sorted";
sortfwdind = document.createElement("span");
sortfwdind.id = "sorttable_sortfwdind";
sortfwdind.innerHTML = stIsIE ? ' <font face="webdings">6</font>' : " ▾";
this.appendChild(sortfwdind);
} else {
this.className += " sorttable_sorted_reverse";
sortrevind = document.createElement("span");
sortrevind.id = "sorttable_sortrevind";
sortrevind.className = "sortable_reverse";
sortrevind.innerHTML = stIsIE ? ' <font face="webdings">5</font>' : " ▴";
this.appendChild(sortrevind);
}
if (customClickHandler) {
// Normalize the event for ie.
if (!e.currentTarget) {
e.currentTarget = this;
}
// Rely on this method to trigger sorting, client or server
customClickHandler(e);
} else { // Do the client sorting
// 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]];
}
row_array.sort(this.sorttable_sortfunction);
// sorttable.shaker_sort(row_array, this.sorttable_sortfunction);
tb = this.sorttable_tbody;
for (var j = 0; j < row_array.length; j++) {
var new_class, other_class;
if ((j % 2) == 0) {
new_class = "info-even";
other_class = "info-odd";
} else {
new_class = "info-odd";
other_class = "info-even";
}
var row_class = row_array[j][1].className;
row_class = row_class.replace(other_class, new_class).replace(/^\s+|\s+$/, "").replace(/\s+/, " ");
row_array[j][1].className = row_class;
tb.appendChild(row_array[j][1]);
}
delete row_array;
}
});
}
}
},
initializeHeader: function(current) {
if (current.className.search(/\bsorttable_sorted\b/) != -1) {
sortfwdind = document.createElement("span");
sortfwdind.id = "sorttable_sortfwdind";
sortfwdind.className = "sortable_forward";
sortfwdind.innerHTML = stIsIE ? ' <font face="webdings">6</font>' : " ▾";
current.appendChild(sortfwdind);
}
if (current.className.search(/\bsorttable_sorted_reverse\b/) != -1) {
sortrevind = document.createElement("span");
sortrevind.id = "sorttable_sortrevind";
sortrevind.className = "sortable_reverse";
sortrevind.innerHTML = stIsIE ? ' <font face="webdings">5</font>' : " ▴";
current.appendChild(sortrevind);
}
},
guessType: function(table, column) {
// guess the type of a column based on its first non-blank row
sortfn = sorttable.sort_alpha;
if (!table.tBodies[0]) {
return sortfn;
}
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(/^-?[�$�]?[\d,.]+%?\s(Bytes|KB|MB|GB|TB|PB)$/)) {
return sorttable.sort_space;
}
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.nodeType != 3 && 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_space: function(a, b) {
abytesunit = a[0].split(/\s+/);
aa = unit_to_bytes(abytesunit[0], abytesunit[1]);
if (isNaN(aa)) {
aa = 0;
}
bbytesunit = b[0].split(/\s+/);
bb = unit_to_bytes(bbytesunit[0], bbytesunit[1]);
if (isNaN(bb)) {
bb = 0;
}
return aa - bb;
},
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
****************************************************************** */
YAHOO.util.Event.onDOMReady(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
*/
// 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);
}
};
function unit_to_bytes(num, bytes) {
switch (bytes) {
case "KB":
return parseFloat(num) * 1024;
case "MB":
return parseFloat(num) * 1024 * 1024;
case "GB":
return parseFloat(num) * 1024 * 1024 * 1024;
case "TB":
return parseFloat(num) * 1024 * 1024 * 1024 * 1024;
case "PB":
return parseFloat(num) * 1024 * 1024 * 1024 * 1024 * 1024;
default:
return parseFloat(num);
}
}