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	datatable_lite.js - jscancer - Javascript crap (relatively small)
	git clone git://git.codemadness.org/jscancer
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	datatable_lite.js (3986B)
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	1 var datatable_parse_date = Date.parse,
	2 datatable_parse_float = parseFloat,
	3 datatable_parse_int = parseInt,
	4 datatable_parse_string = String;
	5
	6 function datatable_sort_default(x, y) {
	7 return x > y ? 1 : (x == y ? 0 : -1);
	8 }
	9
	10 function datatable_init(el) {
	11 var thead = el.tHead;
	12 var ths = thead.children[0].children,
	13 cols = [];
	14 for (var i = 0; i < ths.length; i++)
	15 cols.push({
	16 parsefn: window["datatable_parse_" + (ths[i].…
	17 sortfn: window["datatable_sort_" + (ths[i].g…
	18 sortable: ["1", "true"].indexOf(ths[i].getAttr…
	19 });
	20 var d = {
	21 table: el,
	22 thead: thead,
	23 ths: ths,
	24 tbody: el.tBodies[0],
	25 cols: cols,
	26 sort: [] // sort options: [colidx, order (ASC = 0, DESC…
	27 };
	28 d.data = datatable_data_parse(d);
	29
	30 d.display = function(data) {
	31 var tbody = document.createElement("tbody");
	32 for (var i = 0; i < data.length; i++)
	33 tbody.appendChild(data[i].tr);
	34 d.table.replaceChild(tbody, d.tbody);
	35 tbody.style.display = data.length ? "table-row-group" : …
	36 d.tbody = tbody;
	37 };
	38
	39 // setup click event handlers for sorting.
	40 for (var i = 0; i < d.ths.length; i++)
	41 d.cols[i].sortable && d.ths[i].addEventListener("click",…
	42 return function(e) {
	43 // shift-click for multi-select modifier.
	44 datatable_sort_column_toggle(d, idx, e.s…
	45 d.data = datatable_sort(d, d.data);
	46 d.display(d.data);
	47 };
	48 }(i), false);
	49 return d;
	50 }
	51
	52 function datatable_sort_column_get(d, idx) {
	53 for (var i = 0; i < d.sort.length; i++)
	54 if (d.sort[i][0] == idx)
	55 return i;
	56 return -1;
	57 }
	58
	59 function datatable_sort_column_set(d, idx, order, multi) {
	60 var c = datatable_sort_column_get(d, idx);
	61 if (multi)
	62 if (c != -1)
	63 d.sort[c][1] = order;
	64 else
	65 d.sort.push([ idx, order ]);
	66 else
	67 d.sort = [ [idx, order] ];
	68
	69 for (var i = 0; i < d.ths.length; i++) {
	70 var c = " " + d.ths[i].className + " ";
	71 d.ths[i].className = c.replace(/ sort-(asc\|desc) /g, " "…
	72 }
	73 for (var i = 0; i < d.sort.length; i++)
	74 d.ths[d.sort[i][0]].className += " sort-" + (d.sort[i][1…
	75 }
	76
	77 // toggle sort or use default order: ASC.
	78 function datatable_sort_column_toggle(d, idx, multi) {
	79 var c = datatable_sort_column_get(d, idx);
	80 datatable_sort_column_set(d, idx, c == -1 \|\| d.sort[c][1] ? 0 : …
	81 }
	82
	83 function datatable_data_parse(d) {
	84 var data = [], trs = d.tbody.children;
	85 // NOTE: assumes each tr has only "<td>" childnodes.
	86 for (var i = 0; i < trs.length; i++) {
	87 var values = [];
	88 for (var j = 0, trc = trs[i].children; j < trc.length; j…
	89 var td = trc[j], v = td.getAttribute("data-value…
	90 // prefer data-value attribute, else use cell co…
	91 if (typeof(v) != "undefined" && v !== null)
	92 values.push(d.cols[j].parsefn(v));
	93 else
	94 values.push(d.cols[j].parsefn(td.textCon…
	95 }
	96 data.push({
	97 tr: trs[i],
	98 values: values
	99 });
	100 }
	101 return data;
	102 }
	103
	104 function datatable_sort(d, data) {
	105 // setup sort functions once (in order for multi-select).
	106 var sortfns = d.sort.map(function(s) {
	107 return (function(c, o, fn) {
	108 if (o)
	109 return function(xvals, yvals) {
	110 return -fn(xvals[c], yvals[c]);
	111 };
	112 else
	113 return function(xvals, yvals) {
	114 return fn(xvals[c], yvals[c]);
	115 };
	116 })(s[0], s[1], d.cols[s[0]].sortfn);
	117 });
	118 return data.sort(function(x, y) {
	119 for (var i = 0, r; i < sortfns.length; i++)
	120 if ((r = sortfns[i](x.values, y.values)) != 0)
	121 return r;
	122 return r;
	123 });
	124 }
	125
	126 function datatable_autoload() {
	127 // convert to Array (not changed in-place, mandatory).
	128 var ds = [], dl = [], els = document.getElementsByClassName && d…
	129 for (var i = 0; i < els.length; i++)
	130 dl.push(els[i]);
	131 for (var i = 0, d; i < dl.length; i++) {
	132 if ((d = datatable_init(dl[i])) === null)
	133 continue;
	134 ds.push(d);
	135 }
	136 return ds;
	137 }