日历控件（基础版） -

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日历控件（基础版）

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javascript
html

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>日历控件（基础版）</title>
<style>
.calendar{position:relative;float:left;border:1px solid;border-color:#85BEE5 #3485C0 #3485C0 #85BEE5;padding:0 30px 15px;background:#FFF;}
.cal-container{float:left;margin:10px 10px 0;}
.calendar dl{width:183px;color:#404040;font:12px/22px Tahoma;margin:10px 10px 0;}
.calendar dl,.calendar dt,.calendar dd{text-align:center;margin:0;padding:0;}
.calendar dt{float:left;width:25px;height:22px;margin-left:1px;}
.calendar dt.date{width:100%;font-weight:700;border-bottom:1px solid #E4E4E4;margin:0;}
.calendar dd{clear:both;width:183px;height:139px;font-weight:700;background:url(http://www.codefans.net/jscss/demoimg/201112/bg.png) no-repeat;}
.calendar dd a,.calendar dd a span{float:left;width:25px;height:22px;color:#404040;overflow:hidden;text-decoration:none;background-image:url(http://www.codefans.net/jscss/demoimg/201112/special-day.png);background-position:-999px -999px;background-repeat:no-repeat;margin:1px 0 0 1px;outline:none;}
.calendar dd a:hover,.calendar dd a.selected{color:#FFF;background-color:#5792DC;}
.calendar dd a.disabled,.calendar dd a.disabled:hover{color:#DCDCDC;cursor:default;background-color:transparent;}
.calendar dd a span{display:block;width:25px;height:22px;margin:0;cursor:pointer;}
.cal-prev,.cal-next,.cal-close{position:absolute;cursor:pointer;overflow:hidden;text-indent:-9999px;background:url(http://www.codefans.net/jscss/demoimg/201112/ico.png) no-repeat;}
.cal-prev,.cal-next{top:50%;width:20px;height:38px;margin-top:-19px;}
.cal-prev{left:10px;background-position:0 -25px;}
.cal-next{right:10px;background-position:-20px -25px;}
.cal-close{top:8px;right:8px;width:17px;height:17px;background-position:-40px -25px;}
.calendar dd a.yuandan,
.calendar dd a.chuxi,
.calendar dd a.chunjie,
.calendar dd a.yuanxiao,
.calendar dd a.qingming,
.calendar dd a.wuyi,
.calendar dd a.duanwu,
.calendar dd a.zhongqiu,
.calendar dd a.guoqing,
.calendar dd a.today
{text-indent:-999px;}
.calendar dd a.yuandan{background-position:0 0;}
.calendar dd a.chuxi{background-position:0 -30px;}
.calendar dd a.chunjie{background-position:0 -60px;}
.calendar dd a.yuanxiao{background-position:0 -90px;}
.calendar dd a.qingming{background-position:0 -120px;}
.calendar dd a.wuyi{background-position:0 -150px;}
.calendar dd a.duanwu{background-position:0 -180px;}
.calendar dd a.zhongqiu{background-position:0 -210px;}
.calendar dd a.guoqing{background-position:0 -240px;}
.calendar dd a.today{background-position:0 -270px;}
.calendar dd a.yuandan:hover, .calendar dd a.yuandan .selected{background-position:-31px 0;}
.calendar dd a.chuxi:hover, .calendar dd a.chuxi .selected{background-position:-31px -30px;}
.calendar dd a.chunjie:hover, .calendar dd a.chunjie .selected{background-position:-31px -60px;}
.calendar dd a.yuanxiao:hover, .calendar dd a.yuanxiao .selected{background-position:-31px -90px;}
.calendar dd a.qingming:hover, .calendar dd a.qingming .selected{background-position:-31px -120px;}
.calendar dd a.wuyi:hover, .calendar dd a.wuyi .selected{background-position:-31px -150px;}
.calendar dd a.duanwu:hover, .calendar dd a.duanwu .selected{background-position:-31px -180px;}
.calendar dd a.zhongqiu:hover, .calendar dd a.zhongqiu .selected{background-position:-31px -210px;}
.calendar dd a.guoqing:hover, .calendar dd a.guoqing .selected{background-position:-31px -240px;}
.calendar dd a.today:hover, .calendar dd a.today .selected{background-position:-31px -270px;}
</style>
<style>
body{font:14px/1.5 Tahoma;}
#set{overflow:hidden;zoom:1;line-height:2;padding:10px 0;}
#set button,#set input,#set label{float:left;}
#set button{font:12px/1.8 Arial;cursor:pointer;}
#set input{border:2px solid #CCC;height:19px;padding:3px;font:700 16px Arial;}
#set button,#set input{margin-right:10px;}
#copyright{font-size:12px;float:left;clear:both;width:100%;color:#9A9A9A;text-align:center;padding:10px 0;border-top:2px solid #3485C0;margin:15px 0;}
#copyright a{background:#9A9A9A;border-radius:10px 10px 10px 10px;color:#FFF;padding:2px 5px;text-decoration:none;}
</style>
</head>
<body>
<div id="set">
    <button>隐藏日历</button>
    <button>隐藏功能按钮</button>
    <button>节假日特殊显示</button>
    <label>日历个数：</label><input id="Cal_Count" type="text" maxlength="1" style="width:50px;" value="5" /><button>确定</button>
</div>
<div id="copyright">如蒙转载请注明出处 <a href="http://js.fgm.cc">Fgm.cc</a> , By — Ferris, QQ:21314130</div>

<script>
//日历控件构造函数
function Calendar() {
this.initialize.apply(this, arguments)
}
Calendar.prototype = {
constructor: Calendar,
//初始化
initialize: function(config) {
  config = config || {};
  //日历对象列表
  this.aCal = [],
  //插入指定位置
  this.insertBefore = typeof config.insertBefore === "object" ? config.insertBefore : document.getElementById(config.insertBefore);
  //日历id
  this.id = config.id || "C_" + (+new Date());
  //日历内容容器
  this.container = document.createElement("div");
  this.container.id = this.id;
  //关闭按钮
  this.oClose = document.createElement("span");
  this.oClose.className = "cal-close";
  //左按钮
  this.oPrev = document.createElement("span");
  this.oPrev.className = "cal-prev";
  //右按钮
  this.oNext = document.createElement("span");
  this.oNext.className = "cal-next";
  //是否显示功能按钮
  this.bShowBtn = config.showBtn;
  //是否特殊显示节假日
  this.holiday = config.holiday;
  //日历个数
  this.count = config.count || 1;
  //指定年份
  this.Year = config.year || new Date().getFullYear();
  //指定月份
  this.Month = config.month || new Date().getMonth() + 1;
  //选择的日期
  this.selectDay = config.selectDay;
  //当天回调函数
  this.onToday = config.onToday || function() {};
  //日历创建完毕回调函数
  this.onComplete = config.onComplete || function() {};
  //选择日期回调函数
  this.onSelectDay = config.onSelectDay || function() {};
  //今天
  this.today = new Date().getFullYear() + "-" + this.format(new Date().getMonth() + 1) + "-" + this.format(new Date().getDate());
  //配置功能按钮
  this.setBtn(this.bShowBtn);
  //添加事件
  this.addEvent();
},
//创建日历算法
_Draw: function(iYear, iMonth) {
  var oContainer = document.createElement("div"),
   oDl = document.createElement("dl"),
   oDd = document.createElement("dd"),
   oFrag = document.createDocumentFragment(),
   //计算当月第一天是星期几
   firstDay = new Date(iYear, iMonth - 1, 1).getDay(),
   //计算当月有多少天
   lastDay = new Date(iYear, iMonth, 0).getDate(),
   //日历头
   aTmp = [
    "<dt class=\"date\">"+ iYear + "年" + iMonth +"月</dt>",
    "<dt><strong>日</strong></dt>",
    "<dt>一</dt>",
    "<dt>二</dt>",
    "<dt>三</dt>",
    "<dt>四</dt>",
    "<dt>五</dt>",
    "<dt><strong>六</strong></dt>"
   ],
   arr = [],
   cur, oA, i, len, sValue, classIndex;
  //-------------------------------------------------------------
  for(i = 1; i <= firstDay; i++) arr.push(0);
  for(i = 1; i <= lastDay; i++) arr.push(i);
  while(arr.length) {
   for(i = 1, len = arr.length; i <= len; i++) {
    if(arr.length) {
     oA = document.createElement("a");
     sValue = arr.shift();
     if(!sValue) {
      oA.innerHTML = " ";
      oA.className = "disabled";
     }
     else {
      oA["data-date"] = iYear + "-" + this.format(iMonth) + "-" + this.format(sValue);
      oA["data-week"] = this.getWeek(oA["data-date"]);
      oA.href = "javascript:;";
      oA.innerHTML = sValue;
      cur = new Date(iYear, iMonth - 1, sValue);
      //屏蔽今天以前的日期选择
      parseInt(oA["data-date"].replace(/-/g, "")) < parseInt(this.today.replace(/-/g, "")) && (oA.className = "disabled");
      //节假日处理
      if(this.holiday) for(var className in this.dayName) this.isHoliday(oA, className)
     }
    }
    oFrag.appendChild(oA)
   }
  }
  //插入相关元素
  oDd.appendChild(oFrag);
  oDl.innerHTML = aTmp.join("");
  oDl.appendChild(oDd);
  oContainer.className = "cal-container";
  oContainer.appendChild(oDl);
  //记录日历队列
  this.aCal.push(oContainer);
  //返回生成好的日历
  return oContainer
},
//创建日历
create: function() {
  var year = this.Year,
   month = this.Month,
   i = 0;
  //----------------------------------------------------------------
  this.container.className = "calendar"; //※指定日历控件className
  //清空日历队列
  while(this.aCal[0]) this.container.removeChild(this.aCal.shift());
  //批量生成日历
  for(i = 0; i < this.count; i++) {
   year += (month + (i ? 1 : 0)) > 12 ? 1 : 0;
   month = (month + (i ? 1 : 0)) % 12 || 12;
   this.container.appendChild(this._Draw(year, month))
  }
  //将日历插入页面, 如果未指定插入位置则插入BODY
  (this.insertBefore ? this.insertBefore.parentNode : document.body).insertBefore(this.container, this.insertBefore);
  //日历生成完毕的回调方法
  this.onComplete();
  return this
},
//根据日期创建日历
Draw: function(date) {
  this.Year = date.getFullYear();
  this.Month = date.getMonth() + 1;
  //重新创建日历
  this.create()
},
//当前月
NowMonth: function() {
  this.Draw(new Date())
},
//下月
NextMonth: function() {
  this.Draw(new Date(this.Year, this.Month + (this.count - 1), 1))
},
//上月
PrevMonth: function() {
  this.Draw(new Date(this.Year, this.Month - (this.count + 1), 1))
},
//计算是否为节假日
isHoliday: function(obj, className) {
  if(new RegExp(obj["data-date"]).test(this.Holidays()[className].join())) {
   obj.className = className;
   obj["data-week"] = this.dayName[className];
   obj.innerHTML = "<span>"+ obj.innerHTML +"</span>"
  }
},
//格式化数字, 不足两位补0
format: function(str) {
  return str.toString().replace(/^(\d)$/, "0$1")
},
//显示日历
show: function() {
  this.container.style.display = "block"
},
//隐藏日历
hide: function() {
  this.container.style.display = "none"
},
//按钮设置(显示/隐藏)
setBtn: function(boolean) {
  var obj = this.container;
  //如果按钮没有创建过并且设置为显示, 则创建按钮, 并添加已创建标记
  if(!this.mark && boolean) {
   obj.insertBefore(this.oClose, obj.firstChild);
   obj.insertBefore(this.oPrev, obj.firstChild);
   obj.insertBefore(this.oNext, obj.firstChild);
   //添加已创建标记
   this.mark = true
  }
  //如果按钮已经创建过, 则设置其显示/隐藏
  this.oClose.style.display = this.oPrev.style.display = this.oNext.style.display = boolean ? "block" : "none";
},
//添加事件
addEvent: function() {
  var that = this,
   obj = this.container,
   handler = null;
  //CLICK事件代理
  handler = function(e) {
   e = e || event
   var oTarget = e.target || e.srcElement;
   switch(oTarget.className) {
    case "cal-close":
     that.hide();
     break;
    case "cal-prev":
     that.PrevMonth();
     break;
    case "cal-next":
     that.NextMonth();
     break;
   }
   if(oTarget.tagName.toUpperCase() === "A" && oTarget.className != "disabled") {
    that.onSelectDay(oTarget)
   }
   if(oTarget.tagName.toUpperCase() === "SPAN" && oTarget.parentNode.tagName.toUpperCase() === "A") {
    that.onSelectDay(oTarget.parentNode)
   }
  }
  //为日历控件添加CLICK事件监听
  if(obj.addEventListener)
   obj.addEventListener("click", handler, false);
  else if(obj.attachEvent)
   obj.attachEvent("onclick", handler)
},
//获取指定日期是星期几 @param date string yyyy-mm-dd
getWeek: function(date) {
  var aWeek = ["\u65e5", "\u4e00", "\u4e8c", "\u4e09", "\u56db", "\u4e94", "\u516d"],
   arr = date.split(/-/g);
  return "\u661f\u671f" + aWeek[new Date(arr[0], arr[1] - 1, arr[2]).getDay()]
},
//节假日名字
dayName: {
  "today":"\u4eca\u5929",
  "yuandan":"\u5143\u65e6",
  "chuxi":"\u9664\u5915",
  "chunjie":"\u6625\u8282",
  "yuanxiao":"\u5143\u5bb5\u8282",
  "qingming":"\u6e05\u660e",
  "wuyi":"\u52b3\u52a8\u8282",
  "duanwu":"\u7aef\u5348\u8282",
  "zhongqiu":"\u4e2d\u79cb\u8282",
  "guoqing":"\u56fd\u5e86\u8282"
},
//2012——2020年节假日数据
Holidays: function(){
  return {
   today: [this.today],
   yuandan: ["2012-01-01", "2013-01-01", "2014-01-01", "2015-01-01", "2016-01-01", "2017-01-01", "2018-01-01", "2019-01-01", "2020-01-01"],
   chuxi: ["2012-01-22", "2013-02-09", "2014-01-30", "2015-02-18", "2016-02-07", "2017-01-27", "2018-02-15", "2019-02-04", "2020-01-24"],
   chunjie: ["2012-01-23", "2013-02-10", "2014-01-31", "2015-02-19", "2016-02-08", "2017-01-28", "2018-02-16", "2019-02-05", "2020-01-25"],
   yuanxiao: ["2012-02-06", "2013-02-24", "2014-2-14", "2015-03-05", "2016-02-22", "2017-02-11", "2018-03-02", "2019-02-19", "2020-02-8"],
   qingming: ["2012-04-04", "2013-04-04", "2014-04-05", "2015-04-05", "2016-04-04", "2017-04-04", "2018-04-05", "2019-04-05", "2020-04-04"],
   wuyi: ["2012-05-01", "2013-05-01", "2014-05-01", "2015-05-01", "2016-05-01", "2017-05-01", "2018-05-01", "2019-05-01", "2020-05-01"],
   duanwu: ["2012-06-23", "2013-06-12", "2014-06-02", "2015-06-20", "2016-06-09", "2017-05-30", "2018-06-18", "2019-06-07", "2020-06-25"],
   zhongqiu: ["2012-09-30", "2013-09-19", "2014-09-08", "2015-09-27", "2016-09-15", "2017-10-04", "2018-09-24", "2019-09-13", "2020-10-01"],
   guoqing: ["2012-10-01", "2013-10-01", "2014-10-01", "2015-10-01", "2016-10-01", "2017-10-01", "2018-10-01", "2019-10-01", "2020-10-01"]
  }
}
};
</script>

<script>
//公用方法
var _ = {
$: function(id) {
  return typeof id === "object" ? id : document.getElementById(id)
},
$$: function(tagName, oParent) {
  return (oParent || document).getElementsByTagName(tagName)
},
hasClass: function(element, className) {
  return new RegExp("(^|\\s)" + className + "(\\s|$)").test(element.className)
},
addClass: function(element, className) {
  var arr = element.className.split(/\s+/);
  this.hasClass(element, className) || arr.push(className);
  element.className = arr.join(" ").replace(/(^\s*)|(\s*$)/, "")
},
removeClass: function(element, className) {
  element.className = element.className.replace(new RegExp("(^|\\s)" + className + "(\\s|$)", "g"), "").split(/\s+/).join(" ")
}
},
//获取按钮
aInput = _.$$("input"),
//创建一个日历实例
oCalendar = new Calendar({
count:3,     //显示日历个数
showBtn: !0,    //显示功能按钮
onSelectDay: fnSelectDay, //选择日期回函函数
insertBefore: "copyright" //将日历插入到id为copyright元素前, 如果设置此项, 默认插入BODY
});
//将日历插入页面
oCalendar.create();
//回调函数
function fnSelectDay(obj) {
var aA = oCalendar.container.getElementsByTagName("a"),
  len = aA.length;
for(;len--;) _.removeClass(aA[len].children[0] ? aA[len].children[0] : aA[len], "selected");
_.addClass(obj.children[0] ? obj.children[0] : obj, "selected");
alert(obj["data-date"] + "\u3010"+ obj["data-week"] +"\u3011\n")
};
//INPUT事件代理
document.onclick = function(e) {
e = e || event;
var oTarget = e.target || e.srcElement;
if(oTarget.tagName.toUpperCase() == "BUTTON") {
  switch(oTarget.innerHTML) {
   case "\u663e\u793a\u529f\u80fd\u6309\u94ae":
    oCalendar.setBtn(true);
    oTarget.innerHTML = "\u9690\u85cf\u529f\u80fd\u6309\u94ae";
    break;
   case "\u9690\u85cf\u529f\u80fd\u6309\u94ae":
    oCalendar.setBtn(false);
    oTarget.innerHTML = "\u663e\u793a\u529f\u80fd\u6309\u94ae";
    break;
   case "\u663e\u793a\u65e5\u5386":
    oCalendar.show();
    oTarget.innerHTML = "\u9690\u85cf\u65e5\u5386";
    break;
   case "\u9690\u85cf\u65e5\u5386":
    oCalendar.hide();
    oTarget.innerHTML = "\u663e\u793a\u65e5\u5386"
    break;
   case "\u8282\u5047\u65e5\u7279\u6b8a\u663e\u793a":
    oCalendar.holiday = !0;
    oCalendar.Draw(new Date);
    oTarget.innerHTML = "\u8282\u5047\u65e5\u6b63\u5e38\u663e\u793a"
    break;
   case "\u8282\u5047\u65e5\u6b63\u5e38\u663e\u793a":
    oCalendar.holiday = !1;
    oCalendar.Draw(new Date);
    oTarget.innerHTML = "\u8282\u5047\u65e5\u7279\u6b8a\u663e\u793a"
    break;
   case "\u786e\u5b9a":
    var count = _.$("Cal_Count");
    if(/^[^1-5]$/.test(count.value || 0)) {
     count.select();
     alert("\u9519\u8bef\u63d0\u793a\uff1a\n\n\u53ea\u80fd\u8f93\u5165\u6570\u5b57[1-5]")
    }
    else {
     oCalendar.count = parseInt(count.value);
     oCalendar.Draw(new Date())
    }
    break;
  }
}
};
</script>
</body>
</html>