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发一个javascript的日历控件

2008-07-03 20:42 323 查看
特色：
一、支持IE6，FireFox

二、支持中、英文日历、可自由扩展其它语言

三、遇到Select 下拉框的时候，采取隐藏的方法

四、采用div作为日历容器，不会被浏览器拦截

五、支持日期回显，如果你的文本框中是2003-05-12，要修改此值时，日历会自动显示到2003年5月的视图

存在的问题：
一、速度上不是十分的快、和实现有关，但也不慢，毕竟是脚本，也没有什么耗时的操作，但我总觉得可以改进

二、在同一个页面支持多种语言时，要创建实例，已经默认创建了一个中文实例。

var cn_calendar = new Calendar();

var en_calendar = new Calendar();

给出代码：

WebCalendar.js

<!--

/**

* 返回日期

* @param d the delimiter

* @param p the pattern of your date

*/

String.prototype.toDate = function(x, p) {

if(x == null) x = "-";

if(p == null) p = "ymd";

var a = this.split(x);

var y = parseInt(a[p.indexOf("y")]);

//remember to change this next century ;)

if(y.toString().length <= 2) y += 2000;

if(isNaN(y)) y = new Date().getFullYear();

var m = parseInt(a[p.indexOf("m")]) - 1;

var d = parseInt(a[p.indexOf("d")]);

if(isNaN(d)) d = 1;

return new Date(y, m, d);

}

/**

* 格式化日期

* @param d the delimiter

* @param p the pattern of your date

* @author meizz

*/

Date.prototype.format = function(style) {

var o = {

"M+" : this.getMonth() + 1, //month

"d+" : this.getDate(), //day

"h+" : this.getHours(), //hour

"m+" : this.getMinutes(), //minute

"s+" : this.getSeconds(), //second

"w+" : "天一二三四五六".charAt(this.getDay()), //week

"q+" : Math.floor((this.getMonth() + 3) / 3), //quarter

"S" : this.getMilliseconds() //millisecond

}

if(/(y+)/.test(style)) {

style = style.replace(RegExp.$1,

(this.getFullYear() + "").substr(4 - RegExp.$1.length));

}

for(var k in o){

if(new RegExp("("+ k +")").test(style)){

style = style.replace(RegExp.$1,

RegExp.$1.length == 1 ? o[k] :

("00" + o[k]).substr(("" + o[k]).length));

}

}

return style;

};

/**

* 日历类

* @param beginYear 1990

* @param endYear 2010

* @param lang 0(中文)|1(英语) 可自由扩充

* @param dateFormatStyle "yyyy-MM-dd";

* @version 2006-04-01

* @author KimSoft (jinqinghua [at] gmail.com)

* @update

*/

function Calendar(beginYear, endYear, lang, dateFormatStyle) {

this.beginYear = 1990;

this.endYear = 2010;

this.lang = 0; //0(中文) | 1(英文)

this.dateFormatStyle = "yyyy-MM-dd";

if (beginYear != null && endYear != null){

this.beginYear = beginYear;

this.endYear = endYear;

}

if (lang != null){

this.lang = lang

}

if (dateFormatStyle != null){

this.dateFormatStyle = dateFormatStyle

}

this.dateControl = null;

this.panel = this.getElementById("calendarPanel");

this.form = null;

this.date = new Date();

this.year = this.date.getFullYear();

this.month = this.date.getMonth();

this.colors = {

"cur_word" : "#FFFFFF", //当日日期文字颜色

"cur_bg" : "#00FF00", //当日日期单元格背影色

"sun_word" : "#FF0000", //星期天文字颜色

"sat_word" : "#0000FF", //星期六文字颜色

"td_word_light" : "#333333", //单元格文字颜色

"td_word_dark" : "#CCCCCC", //单元格文字暗色

"td_bg_out" : "#EFEFEF", //单元格背影色

"td_bg_over" : "#FFCC00", //单元格背影色

"tr_word" : "#FFFFFF", //日历头文字颜色

"tr_bg" : "#666666", //日历头背影色

"input_border" : "#CCCCCC", //input控件的边框颜色

"input_bg" : "#EFEFEF" //input控件的背影色

}

this.draw();

this.bindYear();

this.bindMonth();

this.changeSelect();

this.bindData();

}

/**

* 日历类属性（语言包，可自由扩展）

*/

Calendar.language = {

"year" : [[""], [""]],

"months" : [["一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"],

["JAN","FEB","MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT","NOV","DEC"]

],

"weeks" : [["日","一","二","三","四","五","六"],

["SUN","MON","TUR","WED","THU","FRI","SAT"]

],

"clear" : [["清空"], ["CLS"]],

"today" : [["今天"], ["TODAY"]],

"close" : [["关闭"], ["CLOSE"]]

}

Calendar.prototype.draw = function() {

calendar = this;

var mvAry = [];

mvAry[mvAry.length] = ' <form name="calendarForm" style="margin: 0px;">';

mvAry[mvAry.length] = ' <table width="100%" border="0" cellpadding="0" cellspacing="1">';

mvAry[mvAry.length] = ' <tr>';

mvAry[mvAry.length] = ' <th align="left" width="1%"><input style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:16px;height:20px;" name="prevMonth" type="button" id="prevMonth" value="<" /></th>';

mvAry[mvAry.length] = ' <th align="center" width="98%" nowrap="nowrap"><select name="calendarYear" id="calendarYear" style="font-size:12px;"></select><select name="calendarMonth" id="calendarMonth" style="font-size:12px;"></select></th>';

mvAry[mvAry.length] = ' <th align="right" width="1%"><input style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:16px;height:20px;" name="nextMonth" type="button" id="nextMonth" value=">" /></th>';

mvAry[mvAry.length] = ' </tr>';

mvAry[mvAry.length] = ' </table>';

mvAry[mvAry.length] = ' <table id="calendarTable" width="100%" style="border:0px solid #CCCCCC;background-color:#FFFFFF" border="0" cellpadding="3" cellspacing="1">';

mvAry[mvAry.length] = ' <tr>';

for(var i = 0; i < 7; i++) {

mvAry[mvAry.length] = ' <th style="font-weight:normal;background-color:' + calendar.colors["tr_bg"] + ';color:' + calendar.colors["tr_word"] + ';">' + Calendar.language["weeks"][this.lang][i] + '</th>';

}

mvAry[mvAry.length] = ' </tr>';

for(var i = 0; i < 6;i++){

mvAry[mvAry.length] = ' <tr align="center">';

for(var j = 0; j < 7; j++) {

if (j == 0){

mvAry[mvAry.length] = ' <td style="cursor:default;color:' + calendar.colors["sun_word"] + ';"></td>';

} else if(j == 6) {

mvAry[mvAry.length] = ' <td style="cursor:default;color:' + calendar.colors["sat_word"] + ';"></td>';

} else {

mvAry[mvAry.length] = ' <td style="cursor:default;"></td>';

}

}

mvAry[mvAry.length] = ' </tr>';

}

mvAry[mvAry.length] = ' <tr style="background-color:' + calendar.colors["input_bg"] + ';">';

mvAry[mvAry.length] = ' <th colspan="2"><input name="calendarClear" type="button" id="calendarClear" value="' + Calendar.language["clear"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/></th>';

mvAry[mvAry.length] = ' <th colspan="3"><input name="calendarToday" type="button" id="calendarToday" value="' + Calendar.language["today"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/></th>';

mvAry[mvAry.length] = ' <th colspan="2"><input name="calendarClose" type="button" id="calendarClose" value="' + Calendar.language["close"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/></th>';

mvAry[mvAry.length] = ' </tr>';

mvAry[mvAry.length] = ' </table>';

mvAry[mvAry.length] = ' </form>';

this.panel.innerHTML = mvAry.join("");

this.form = document.forms["calendarForm"];

this.form.prevMonth.onclick = function () {calendar.goPrevMonth(this);}

this.form.nextMonth.onclick = function () {calendar.goNextMonth(this);}

this.form.calendarClear.onclick = function () {calendar.dateControl.value = "";calendar.hide();}

this.form.calendarClose.onclick = function () {calendar.hide();}

this.form.calendarYear.onchange = function () {calendar.update(this);}

this.form.calendarMonth.onchange = function () {calendar.update(this);}

this.form.calendarToday.onclick = function () {

var today = new Date();

calendar.date = today;

calendar.year = today.getFullYear();

calendar.month = today.getMonth();

calendar.changeSelect();

calendar.bindData();

calendar.dateControl.value = today.format(calendar.dateFormatStyle);

calendar.hide();

}

}

//年份下拉框绑定数据

Calendar.prototype.bindYear = function() {

var cy = this.form.calendarYear;

cy.length = 0;

for (var i = this.beginYear; i <= this.endYear; i++){

cy.options[cy.length] = new Option(i + Calendar.language["year"][this.lang], i);

}

}

//月份下拉框绑定数据

Calendar.prototype.bindMonth = function() {

var cm = this.form.calendarMonth;

cm.length = 0;

for (var i = 0; i < 12; i++){

cm.options[cm.length] = new Option(Calendar.language["months"][this.lang][i], i);

}

}

//向前一月

Calendar.prototype.goPrevMonth = function(e){

if (this.year == this.beginYear && this.month == 0){return;}

this.month--;

if (this.month == -1) {

this.year--;

this.month = 11;

}

this.date = new Date(this.year, this.month, 1);

this.changeSelect();

this.bindData();

}

//向后一月

Calendar.prototype.goNextMonth = function(e){

if (this.year == this.endYear && this.month == 11){return;}

this.month++;

if (this.month == 12) {

this.year++;

this.month = 0;

}

this.date = new Date(this.year, this.month, 1);

this.changeSelect();

this.bindData();

}

//改变SELECT选中状态

Calendar.prototype.changeSelect = function() {

var cy = this.form.calendarYear;

var cm = this.form.calendarMonth;

for (var i= 0; i < cy.length; i++){

if (cy.options[i].value == this.date.getFullYear()){

cy[i].selected = true;

break;

}

}

for (var i= 0; i < cm.length; i++){

if (cm.options[i].value == this.date.getMonth()){

cm[i].selected = true;

break;

}

}

}

//更新年、月

Calendar.prototype.update = function (e){

this.year = e.form.calendarYear.options[e.form.calendarYear.selectedIndex].value;

this.month = e.form.calendarMonth.options[e.form.calendarMonth.selectedIndex].value;

this.date = new Date(this.year, this.month, 1);

this.changeSelect();

this.bindData();

}

//绑定数据到月视图

Calendar.prototype.bindData = function () {

var calendar = this;

var dateArray = this.getMonthViewArray(this.date.getYear(), this.date.getMonth());

var tds = this.getElementById("calendarTable").getElementsByTagName("td");

for(var i = 0; i < tds.length; i++) {

//tds[i].style.color = calendar.colors["td_word_light"];

tds[i].style.backgroundColor = calendar.colors["td_bg_out"];

tds[i].onclick = function () {return;}

tds[i].onmouseover = function () {return;}

tds[i].onmouseout = function () {return;}

if (i > dateArray.length - 1) break;

tds[i].innerHTML = dateArray[i];

if (dateArray[i] != " "){

tds[i].onclick = function () {

if (calendar.dateControl != null){

calendar.dateControl.value = new Date(calendar.date.getFullYear(),

calendar.date.getMonth(),

this.innerHTML).format(calendar.dateFormatStyle);

}

calendar.hide();

}

tds[i].onmouseover = function () {

this.style.backgroundColor = calendar.colors["td_bg_over"];

}

tds[i].onmouseout = function () {

this.style.backgroundColor = calendar.colors["td_bg_out"];

}

if (new Date().format(calendar.dateFormatStyle) ==

new Date(calendar.date.getFullYear(),

calendar.date.getMonth(),

dateArray[i]).format(calendar.dateFormatStyle)) {

//tds[i].style.color = calendar.colors["cur_word"];

tds[i].style.backgroundColor = calendar.colors["cur_bg"];

tds[i].onmouseover = function () {

this.style.backgroundColor = calendar.colors["td_bg_over"];

}

tds[i].onmouseout = function () {

this.style.backgroundColor = calendar.colors["cur_bg"];

}

}//end if

}

}

}

//根据年、月得到月视图数据(数组形式)

Calendar.prototype.getMonthViewArray = function (y, m) {

var mvArray = [];

var dayOfFirstDay = new Date(y, m, 1).getDay();

var daysOfMonth = new Date(y, m + 1, 0).getDate();

for (var i = 0; i < 42; i++) {

mvArray[i] = " ";

}

for (var i = 0; i < daysOfMonth; i++){

mvArray[i + dayOfFirstDay] = i + 1;

}

return mvArray;

}

//扩展 document.getElementById(id) 多浏览器兼容性 from meizz tree source

Calendar.prototype.getElementById = function(id){

if (typeof(id) != "string" || id == "") return null;

if (document.getElementById) return document.getElementById(id);

if (document.all) return document.all(id);

try {return eval(id);} catch(e){ return null;}

}

//扩展 object.getElementsByTagName(tagName)

Calendar.prototype.getElementsByTagName = function(object, tagName){

if (document.getElementsByTagName) return document.getElementsByTagName(tagName);

if (document.all) return document.all.tags(tagName);

}

//取得HTML控件绝对位置

Calendar.prototype.getAbsPoint = function (e){

var x = e.offsetLeft;

var y = e.offsetTop;

while(e = e.offsetParent){

x += e.offsetLeft;

y += e.offsetTop;

}

return {"x": x, "y": y};

}

//显示日历

Calendar.prototype.show = function (dateControl, popControl) {

if (dateControl == null){

throw new Error("arguments[0] is necessary")

}

this.dateControl = dateControl;

if (dateControl.value.length > 0){

this.date = new Date(dateControl.value.toDate());

this.year = this.date.getFullYear();

this.month = this.date.getMonth();

this.changeSelect();

this.bindData();

}

if (popControl == null){

popControl = dateControl;

}

var xy = this.getAbsPoint(popControl);

this.panel.style.left = xy.x + "px";

this.panel.style.top = (xy.y + dateControl.offsetHeight) + "px";

this.setDisplayStyle("select", "hidden");

this.panel.style.visibility = "visible";

}

//隐藏日历

Calendar.prototype.hide = function() {

this.setDisplayStyle("select", "visible");

this.panel.style.visibility = "hidden";

}

//设置控件显示或隐藏

Calendar.prototype.setDisplayStyle = function(tagName, style) {

var tags = this.getElementsByTagName(null, tagName)

for(var i = 0; i < tags.length; i++) {

if (tagName.toLowerCase() == "select" &&

(tags[i].name == "calendarYear" ||

tags[i].name == "calendarMonth")){

continue;

}

tags[i].style.visibility = style;

}

}

document.write('<div id="calendarPanel" style="position: absolute;visibility: hidden;z-index: 9999;background-color: #FFFFFF;border: 1px solid #CCCCCC;width:175px;font-size:12px;"></div>');

var calendar = new Calendar();

//调用calendar.show(dateControl, popControl);

//-->

以下是调用示例页面源码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

<title>Web Calender Control Powered By KimSoft</title>

</head>

<body>

<script language="javascript" type="text/javascript" src="WebCalendar.js"></script>

<script language="javascript" type="text/javascript">

//var calendar_cn = new Calendar(2000, 2010, 0);

//var calendar_en = new Calendar(1990, 2050, 1, "dd-MM-yy");

</script>

<form id="form1" name="form1" method="post" action="">

<label>

<input name="date" type="text" id="date" onclick="new Calendar().show(this);" size="10" maxlength="10" readonly="readonly"/>

</label>

<p> </p>

<p>

<label>

<select name="select">

</select>

</label>

<br>

</p>

</form>

<p><br>

<br>

<br>

<br>

<br>

<br>

<br>

<br>

<input name="date" type="text" id="date1" onclick="new Calendar(null, null, 1).show(this);" />

</p>

<p>

<select name="select2">

</select>

<select name="select3">

</select>

<select name="select4">

</select>

</p>

</body>

</html>

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