openproject/assets/javascripts/sortable.js

/*
Table sorting script  by Joost de Valk, check it out at http://www.joostdevalk.nl/code/sortable-table/.
Based on a script from http://www.kryogenix.org/code/browser/sorttable/.
Distributed under the MIT license: http://www.kryogenix.org/code/browser/licence.html .

Copyright (c) 1997-2007 Stuart Langridge, Joost de Valk.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

Version 1.5.7
*/

/* You can change these values */
var image_path = "";
var image_up = "arrowup.gif";
var image_down = "arrowdown.gif";
var image_none = "arrownone.gif";
var europeandate = true;
var alternate_row_colors = true;

/* Don't change anything below this unless you know what you're doing */
// addEvent(window, "load", sortables_init);

var SORT_COLUMN_INDEX;
var thead = false;

function sortables_init() {
	// Find table with id sortable-table and make them sortable
	if (!document.getElementById) return;
	tbl = document.getElementById("sortable-table");
	ts_makeSortable(tbl);
}

function ts_makeSortable(t) {
	if (t.rows && t.rows.length > 0) {
		if (t.tHead && t.tHead.rows.length > 0) {
			var firstRow = t.tHead.rows[t.tHead.rows.length-1];
			thead = true;
		} else {
			var firstRow = t.rows[0];
		}
	}
	if (!firstRow) return;

	// We have a first row: assume it's the header, and make its contents clickable links
	for (var i=0;i<firstRow.cells.length;i++) {
		var cell = firstRow.cells[i];
		var txt = ts_getInnerText(cell);
		if (cell.className != "unsortable" && cell.className.indexOf("unsortable") == -1) {
			cell.innerHTML = '<a href="#" class="sortheader" onclick="ts_resortTable(this, '+i+');return false;">'+txt+'<span class="sortarrow">&nbsp;&nbsp;<img src="'+ image_path + image_none + '" alt="&darr;"/></span></a>';
		}
	}
	if (alternate_row_colors) {
		alternate(t);
	}
}

function ts_getInnerText(el) {
	if (typeof el == "string") return el;
	if (typeof el == "undefined") { return el };
	if (el.innerText) return el.innerText;	//Not needed but it is faster
	var str = "";

	var cs = el.childNodes;
	var l = cs.length;
	for (var i = 0; i < l; i++) {
		switch (cs[i].nodeType) {
			case 1: //ELEMENT_NODE
				str += ts_getInnerText(cs[i]);
				break;
			case 3:	//TEXT_NODE
				str += cs[i].nodeValue;
				break;
		}
	}
	return str;
}

function ts_resortTable(lnk, clid) {
	var span;
	for (var ci=0;ci<lnk.childNodes.length;ci++) {
		if (lnk.childNodes[ci].tagName && lnk.childNodes[ci].tagName.toLowerCase() == 'span') span = lnk.childNodes[ci];
	}
	var td = lnk.parentNode;
	var column = clid || td.cellIndex;
	var t = getParent(td,'TABLE');

	// Do not sort single a row
	if (t.rows.length <= 1) return;

	// Determine if all rows are equal
	var first = ts_get_cell_data(t.tBodies[0].rows[0], 0);
	var itm = first;
	var i = 0;
	while (itm == first && i < t.tBodies[0].rows.length) {
		var itm = ts_get_cell_data(t.tBodies[0].rows[i], column);
		itm = trim(itm);
		if (itm.substr(0,4) == "<!--" || itm.length == 0) {
			itm = "";
		}
		i++;
	}
	if (itm == first) return;

	// Determine the sort type. You can set numeric=true on the header to force numeric sorting
	sortfn = ts_sort_caseinsensitive;
	if (thead) {
		if (itm.match(/-?\d+(?:\.\d+)?/)) sortfn = ts_sort_numeric; // Normal number
		var numeric_flag = t.tHead.rows[0].cells[column].getAttribute("numeric")
		if (numeric_flag == "true") {
			sortfn = ts_sort_numeric;
		}
	}

	// Do the sorting
	SORT_COLUMN_INDEX = column;
	var firstRow = new Array();
	var newRows = new Array();
	for (k=0;k<t.tBodies.length;k++) {
		for (i=0;i<t.tBodies[k].rows[0].length;i++) {
			firstRow[i] = t.tBodies[k].rows[0][i];
		}
	}
	for (k=0;k<t.tBodies.length;k++) {
		if (!thead) {
			// Skip the first row
			for (j=1;j<t.tBodies[k].rows.length;j++) {
				newRows[j-1] = t.tBodies[k].rows[j];
			}
		} else {
			// Do NOT skip the first row
			for (j=0;j<t.tBodies[k].rows.length;j++) {
				newRows[j] = t.tBodies[k].rows[j];
			}
		}
	}
	newRows.sort(sortfn);
	if (span.getAttribute("sortdir") == 'down') {
			ARROW = '&nbsp;&nbsp;<img src="'+ image_path + image_down + '" alt="&darr;"/>';
			newRows.reverse();
			span.setAttribute('sortdir','up');
	} else {
			ARROW = '&nbsp;&nbsp;<img src="'+ image_path + image_up + '" alt="&uarr;"/>';
			span.setAttribute('sortdir','down');
	}
    // We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
    // don't do sortbottom rows
    for (i=0; i<newRows.length; i++) {
		if (!newRows[i].className || (newRows[i].className && (newRows[i].className.indexOf('sortbottom') == -1))) {
			t.tBodies[0].appendChild(newRows[i]);
		}
	}
    // do sortbottom rows only
    for (i=0; i<newRows.length; i++) {
		if (newRows[i].className && (newRows[i].className.indexOf('sortbottom') != -1))
			t.tBodies[0].appendChild(newRows[i]);
	}
	// Delete any other arrows there may be showing
	var allspans = document.getElementsByTagName("span");
	for (var ci=0;ci<allspans.length;ci++) {
		if (allspans[ci].className == 'sortarrow') {
			if (getParent(allspans[ci],"table") == getParent(lnk,"table")) { // in the same table as us?
				allspans[ci].innerHTML = '&nbsp;&nbsp;<img src="'+ image_path + image_none + '" alt="&darr;"/>';
			}
		}
	}
	span.innerHTML = ARROW;
	alternate(t);
}

function getParent(el, pTagName) {
	if (el == null) {
		return null;
	} else if (el.nodeType == 1 && el.tagName.toLowerCase() == pTagName.toLowerCase()) {
		return el;
	} else {
		return getParent(el.parentNode, pTagName);
	}
}

function ts_get_cell_data(a, idx) {
	if ((typeof idx) == "undefined") {
		acell = a.cells[SORT_COLUMN_INDEX]
	} else {
		acell = a.cells[idx]
	}
	if ((aa = acell.getAttribute("raw-data")) == null) {
		aa = ts_getInnerText(acell).toLowerCase();
	}
	return aa
}

function ts_sort_numeric(a,b) {
	var cells = [ts_get_cell_data(a), ts_get_cell_data(b)];
	return compare_numeric(cells[0], cells[1]);
}

function compare_numeric(a,b) {
	var a = parseFloat(a);
	a = (isNaN(a) ? 0 : a);
	var b = parseFloat(b);
	b = (isNaN(b) ? 0 : b);
	return a - b;
}

function ts_sort_caseinsensitive(a,b) {
	var cells = [ts_get_cell_data(a), ts_get_cell_data(b)];
	if (cells[0] == cells[1]) return 0;
	if (cells[0] < cells[1]) return -1;
	return 1;
}

function addEvent(elm, evType, fn, useCapture)
// addEvent and removeEvent
// cross-browser event handling for IE5+,	NS6 and Mozilla
// By Scott Andrew
{
	if (elm.addEventListener) {
		elm.addEventListener(evType, fn, useCapture);
		return true;
	} else if (elm.attachEvent){
		var r = elm.attachEvent("on"+evType, fn);
		return r;
	} else {
		alert("Handler could not be removed");
	}
}
function clean_num(str) {
	str = str.replace(/^[^-?\d]+/, "");
	str.replace(/(\d),(\d)/g, "$1$2")
	return str;
}
function trim(s) {
	return s.replace(/^\s+|\s+$/g, "");
}
function alternate(table) {
	// Take object table and get all it's tbodies.
	var tableBodies = table.getElementsByTagName("tbody");
	// Loop through these tbodies
	for (var i = 0; i < tableBodies.length; i++) {
		// Take the tbody, and get all it's rows
		var tableRows = tableBodies[i].getElementsByTagName("tr");
		// Loop through these rows
		// Start at 1 because we want to leave the heading row untouched
		for (var j = 0; j < tableRows.length; j++) {
			// Check if j is even, and apply classes for both possible results
			if ( (j % 2) == 0  ) {
				if ( !(tableRows[j].className.indexOf('odd') == -1) ) {
					tableRows[j].className = tableRows[j].className.replace('odd', 'even');
				} else {
					if ( tableRows[j].className.indexOf('even') == -1 ) {
						tableRows[j].className += " even";
					}
				}
			} else {
				if ( !(tableRows[j].className.indexOf('even') == -1) ) {
					tableRows[j].className = tableRows[j].className.replace('even', 'odd');
				} else {
					if ( tableRows[j].className.indexOf('odd') == -1 ) {
						tableRows[j].className += " odd";
					}
				}
			}
		}
	}
}