/*
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.
用法：将要排序的表格添加CSS，如<table class="sortable">
对于不需要排序的列，在表头所在行的该列，添加CSS，如<td class="sorttable_nosort"></td>
======================================================================================
Update:
version 2.1
9th Mar 2009
Hopesoft , http://www.51ajax.com/blog/
hopesoft@msn.com
说明:
1.增加中文排序
2.增加指定各行使用不同css样式功能(比如奇偶行背景色不一致)
用法：在要表头浮动的表格上添加属性，如<table class="sortable" rowclass="bg1,bg2,bg3">
3.增加表头浮动功能(支持同一个页面有多个表格，比如不同Tab标签下的各个表格)
用法：在要表头浮动的表格上添加CSS，如<table class="scrolltable">
另外最好指定“表头”和“数据行”的各列的列宽，如
<tr><td class='w1'>姓名</td><td class='w2'>年龄</td></tr>
<tr><td class='w1'>张三</td><td class='w2'>21</td></tr>
以避免在FireFox下表头浮动时表头各列与数据各列不对齐
4.增加页面载入后自动排序
用法：在表格上添加属性autosortcol，对应要自动排序的列号，注意是从0开始
如<table class="sortable" autosortcol="3">，则表示当页面载入成功后，会自动对第4行进行排序
*/
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)$/;
//保存浮动表头信息,格式
sorttable.scrollRows=[];
forEach(document.getElementsByTagName('table'), function(table) {
if (table.className.search(//bsortable/b/) != -1) {
sorttable.makeSortable(table);
//指定各行css样式
sorttable.changeRowCss(table);
//页面载入后自动排序
var autosortcol=table.getAttribute("autosortcol");
if(autosortcol){
var columnId=parseInt(autosortcol);
if(isNaN(columnId)){return;}
var _headrow = table.tHead.rows[0].cells;
for (var i=0; i<_headrow.length; i++) {
if (columnId==i && !_headrow[i].className.match(//bsorttable_nosort/b/)) {
//触发click事件
if(stIsIE){ _headrow[i].fireEvent("onclick");}
else{
var evt = document.createEvent('MouseEvents');
evt.initEvent('click',true,true);
_headrow[i].dispatchEvent(evt);
}
break;
}
}
}
}
//处理表头浮动
if (table.className.search(//bscrolltable/b/) != -1) {
sorttable.makeScrolltable(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", 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 ? ' <font face="webdings">5</font>' : ' ▴';
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 ? ' <font face="webdings">6</font>' : ' ▾';
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_reverse';
/*
sortfwdind = document.createElement('span');
sortfwdind.id = "sorttable_sortfwdind";
sortfwdind.innerHTML = stIsIE ? ' <font face="webdings">6</font>' : ' ▾';
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]);
}
//指定各行css样式
sorttable.changeRowCss(table);
delete row_array;
});
}
}
},
//指定各行css样式
changeRowCss:function(table){
var rowclass=table.getAttribute("rowclass");
if(rowclass){
var arr=rowclass.split(",");
if(arr.length>0){
rows = table.tBodies[0].rows;
for (var j=0; j<rows.length; j++) {
var sn=j % (arr.length);
rows[j].className=arr[sn];
}
}
}
},
//表头浮动初始化
initScroll: function() {
if (!document.createElement || !document.getElementsByTagName) return;
forEach(document.getElementsByTagName('table'), function(table) {
if (table.className.search(//bscrolltable/b/) != -1) {
sorttable.makeScrolltable(table);
}
});
},
//处理单个表头浮动
makeScrolltable: function(table) {
var tablePos=getPosition(table);
var theadPos=getPosition(table.tHead.rows[0]);
//如果表格可见
if(theadPos.width>0 && theadPos.height>0){
sorttable.scrollRows.push([table.tHead.rows[0],theadPos,tablePos]);
}
},
/*---------------------------------*/
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,.]+%?$/)) {
return sorttable.sort_numeric;
}
// check for a date: dd/mm/yyyy or dd/mm/yy
// can have / or . or - as separator
// can be mm/dd as well
possdate = text.match(sorttable.DATE_RE)
if (possdate) {
// looks like a date
first = parseInt(possdate[1]);
second = parseInt(possdate[2]);
if (first > 12) {
// definitely dd/mm
return sorttable.sort_ddmm;
} else if (second > 12) {
return sorttable.sort_mmdd;
} else {
// looks like a date, but we can't tell which, so assume
// that it's dd/mm (English imperialism!) and keep looking
sortfn = sorttable.sort_ddmm;
}
}
//如果包含中文
else if(/[^/x00-/xff]/g.test(text)){
sortfn = sorttable.sort_gb;
}
}
}
return sortfn;
},
getInnerText: function(node) {
// gets the text we want to use for sorting for a cell.
// strips leading and trailing whitespace.
// this is *not* a generic getInnerText function; it's special to sorttable.
// for example, you can override the cell text with a customkey attribute.
// it also gets .value for <input> fields.
hasInputs = (typeof node.getElementsByTagName == 'function') &&
node.getElementsByTagName('input').length;
if (node.getAttribute("sorttable_customkey") != null) {
return node.getAttribute("sorttable_customkey");
}
else if (typeof node.textContent != 'undefined' && !hasInputs) {
if(node.textContent=="--"){return "-999999";}
return node.textContent.replace(/^/s+|/s+$/g, '');
}
else if (typeof node.innerText != 'undefined' && !hasInputs) {
if(node.innerText=="--"){return "-999999";}
return node.innerText.replace(/^/s+|/s+$/g, '');
}
else if (typeof node.text != 'undefined' && !hasInputs) {
if(node.text=="--"){return "-999999";}
return node.text.replace(/^/s+|/s+$/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_gb:function(a,b){
return a[0].localeCompare(b[0]);
},
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
*/
// 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);
}
}
//获取位置信息
function getPosition(obj) {
var top=0;
var left=0;
var width=obj.offsetWidth;
var height=obj.offsetHeight;
while (obj.offsetParent) {
top += obj.offsetTop;
left += obj.offsetLeft;
obj = obj.offsetParent;
}
return {"top":top,"left":left,"width":width,"height":height};
}
//表头浮动
function onScroll(){
var scrollRows=sorttable.scrollRows;
if(scrollRows.length>0){
for(var i = 0; i < scrollRows.length; i++){
var arr = scrollRows[i];
var pos=arr[1];
//如果表格可见
if(pos.width>0 && pos.height>0){
var top = (document.documentElement && document.documentElement.scrollTop)?document.documentElement.scrollTop : document.body.scrollTop;
var maxBottom = arr[1].top+arr[2].height-2*arr[1].height ;
if(top<arr[1].top){
arr[0].style.position = "relative";
arr[0].style.top = "0px";
}
else if(top >arr[1].top && top < maxBottom){
arr[0].style.position = "absolute";
arr[0].style.top = top+"px";
}
}
}
}
}
window.onscroll = onScroll;
///////////////////////////////////////////
实现页面内多个表格在滚动时，表头浮动的效果（是同时多个表格哟）
1。为table 的表头所在的tr增加属性：
class="flowtitle"
2。增加样式表(可不添加任何样式):
.flowtitle
{}
}
3。添加js脚本：
1
//
标题栏的自动浮动效果
2
var
oldTop
=
0
;
3
var
trs;
4
var
arrTrs
=
new
Array();
5
function
onScroll()
6
{
7
if (arrTrs && arrTrs.length > 0 )
8
{
9 for ( var i = 0 ; i < arrTrs.length; i ++ )
10 {
11 var arr = arrTrs[i];
12 var top = (document.documentElement && document.documentElement.scrollTop) ?
13 document.documentElement.scrollTop : document.body.scrollTop;
14 if ( (top > arr[ 0 ].offsetTop || arr[ 1 ] < arr[ 0 ].offsetTop) &&
15 top < arr[ 2 ])
16 {
17 arr[ 0 ].style.top = top;
18
}
19 }
20 }
21
}
22
function
load ()
23
{
24 // 获取可浮动表头列表
25 var trs = document.getElementsByClassName( " flowtitle " );
26 if (trs && trs.length > 0 )
27 {
28 for ( var i = 0 ; i < trs.length; i ++ )
29 {
30 var tr = trs[i];
31 tr.style.position = " absolute " ;
32 var arr = new Array( 2 );
33 arr[ 0 ] = tr;
34 arr[ 1 ] = tr.offsetTop; // alert(tr.offsetTop+"|"+tr.parentNode.offsetHeight);
35 arr[ 2 ] = tr.offsetTop + tr.parentNode.offsetHeight;
36 arrTrs[i] = arr;
37 }
38 }
39 }
40 window.onscroll
=
onScroll;
41 window.onload
=
load;
//
标题栏的自动浮动效果
2
var
oldTop
=
0
;3
var
trs; 4
var
arrTrs
=
new
Array();5
function
onScroll()6
{7
if (arrTrs && arrTrs.length > 0 )8
{
9
for ( var i = 0 ; i < arrTrs.length; i ++ )10
{ 11
var arr = arrTrs[i];12
var top = (document.documentElement && document.documentElement.scrollTop) ? 13
document.documentElement.scrollTop : document.body.scrollTop; 14
if ( (top > arr[ 0 ].offsetTop || arr[ 1 ] < arr[ 0 ].offsetTop) && 15
top < arr[ 2 ])16
{17
arr[ 0 ].style.top = top;18
} 19
} 20
} 21
}
22
function
load ()23
{24
// 获取可浮动表头列表 25
var trs = document.getElementsByClassName( " flowtitle " );26
if (trs && trs.length > 0 )27
{28
for ( var i = 0 ; i < trs.length; i ++ )29
{30
var tr = trs[i];31
tr.style.position = " absolute " ;32
var arr = new Array( 2 );33
arr[ 0 ] = tr;34
arr[ 1 ] = tr.offsetTop; // alert(tr.offsetTop+"|"+tr.parentNode.offsetHeight); 35
arr[ 2 ] = tr.offsetTop + tr.parentNode.offsetHeight;36
arrTrs[i] = arr;37
} 38
} 39
}
40
window.onscroll
=
onScroll;41
window.onload
=
load;
代码略解：
window.onscroll = onScroll;
window.onload = load; //增加事件
load函数负责初始化可浮动表头对象的列表
load里面的：
arr[0] = tr; //表头对象
arr[1] = tr.offsetTop;// 表头原始位置
arr[2] = tr.offsetTop + tr.parentNode.offsetHeight;//表格底部的位置
tr.style.position = "absolute";//设置表头样式为浮动。 必须！否则不会有任何效果！
onScroll 里面负责处理滚动事件。
if( (top > arr[0].offsetTop || arr[1] < arr[0].offsetTop) &&
top < arr[2])
{
arr[0].style.top = top;
}
//上面这句最重要。判断条件 不明白的话，慢慢琢磨吧
ok，就这么简单。。但效果很酷酷的啦
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