公司展现微信小程序_原生js完成日期选择插件

原生js实现日期选择插件       这篇文章主要为大家详细介绍了原生js实现日期选择插件,文中示例代码介绍的非常详细,具有一定的参考价值,感兴趣的小伙伴们可以参考一下

最近公司项目告一段落,想着写个小玩意打发下上班时间,就用js很粗糙的实现了下日期选择插件。间间断断历时1天多,实现了选择日期的功能,从写完的整体代码来看,耦合度还是蛮高的,我觉得还是我对js中的原型继承方式理解不深刻,一定有更优雅的方式再优化下这份粗糙的代码,各位前端小伙伴们在看完我的代码后请麻烦指出其中实现的不好的地方,有批评指正让我有动力继续写博客嘛!

先说下这个插件的功能:功能很简单,目前只实现了选择一个日期(当然可以赋初始值,默认是当前日期),选择跨月日期时,会有一个粗糙的动画效果,效果图如下:

然后,说下我写这个插件思路:

      1.插件整体是以function Dt作为基类,通过choose方法调用,如:$('#txtDt').choose({value: '2018/8/1'});$方法用来选择要传入选择日期的文本控件。插件由head、content、foot3部分组成,head:选择上月、下月、昨日、明日和显示当前选择日期;centent:显示日期列表;foot:关闭

      2.Dt中render方法会更新属性(年、月、日.....)

      3.跨月实现的动画过渡主要通过content中的3个月列表(上月【隐藏】、当月、下月【隐藏】)分别替换来实现,比如显示下月,只需要将下月列表逐步移动到显示区域,将当月移动到上月,再将原上月列表删除,再将最新的下月列表插入到当月之后。思路很简单,小伙伴们看代码就能一目了然了。只是,我对自己实现的上月、下月、昨日和明日的方法很厌恶,代码严重耦合,美观性很差,如果有小伙伴有更好的解决办法,一定要告诉我。

话不多说,附上所有代码:

html部分: 

 !DOCTYPE html 
 html 
 head 
 meta http-equiv="content-type" content="text/html" charset="utf-8" / 
 title 日期插件 /title 
 style 
 /style 
 /head 
 body 
 div 
 input id="txtDt" type="text" / 
 /div 
 /body 
 /html 

js部分:

(function (){
 function Dt(selector) {
 return new Dt.fn.init(selector);
 Dt.fn = Dt.prototype = {
 constructor: Dt,
 initialize: false,
 init: function (selector) {
 if(selector.indexOf('#') -1){
 this[0] = document.getElementById(selector.substring(1));
 } else {
 var aryEle = document.querySelectorAll(selector);
 for(var i = 0; i aryEle.length; i++){
 this[i] = aryEle[i];
 return this;
 render: function(opt) {
 match hour
 0 1 2 3 4 5 6 7 8 9
 00 01 02 03 04 05 06 07 08 09
 10 11 12 13 14 15 16 17 18 19
 20 21 22 23
 [01]\d | 2[0-3]
 match minute second
 0 1 2 3 4 5 6 7 8 9
 00 01 02 03 04 05 06 07 08 09
 10 11 12 13 14 15 16 17 18 19
 20 ... 29
 50 ... 59
 [0-5]\d
 var regExpDt = /^\d{4}([-/] )\d{1,2}\1\d{1,2}( :\s+( :[01] \d)|( :2[0-3])\:[0-5] \d\:[0-5] \d) 
 if(Object.prototype.toString.apply(opt.value) == '[object Date]') {
 this.value = opt.value.getFullYear() + '/' + (opt.value.getMonth() + 1) + '/' + opt.value.getDate();
 this.date = opt.value;
 this.initialize = true;
 } else if(Object.prototype.toString.apply(opt.value) == '[object String]') {
 this.value = regExpDt.test(opt.value) opt.value : '';
 this.date = new Date(opt.value);
 this.initialize = true;
 } else {
 this.value = '';
 this.date = new Date();
 this.year = this.date.getFullYear();
 this.month = this.date.getMonth() + 1;
 this.day = this.date.getDate();
 this.hour = this.date.getHours();
 this.minute = this.date.getMinutes();
 this.second = this.date.getSeconds();
 this.week = this.date.getDay() == 0 7 : this.date.getDay();
 this.getFirstdateInMonth = function() {
 return new Date(this.date.getFullYear(), this.date.getMonth(), 1);
 this.getCalDate = function(dt, type, num) {
 var dtRtn = new Date();
 dtRtn = dt;
 switch (type) {
 case 'Y':
 dtRtn = new Date(dt.getFullYear() + num, dt.getMonth(), dt.getDate());
 break;
 case 'M':
 dtRtn = new Date(dt.getFullYear(), dt.getMonth() + num, dt.getDate());
 break;
 case 'D':
 dtRtn = new Date(dt.getFullYear(), dt.getMonth(), dt.getDate() + num);
 break;
 default:
 break;
 return dtRtn;
 this.getLastdateInMonth = function() {
 var dtRtn = new Date();
 var dtFirstdateInNextmonth = new Date(this.date.getFullYear(), this.date.getMonth() + 1, 1);
 dtRtn = this.getCalDate(dtFirstdateInNextmonth, 'D', -1);
 return dtRtn;
 this.count = this.getLastdateInMonth().getDate();
 this.formatDate = function(type) {
 var strRtn = '',
 strYear = '',
 strMonth = '',
 strDay = '';
 strYear = this.date.getFullYear();
 strMonth = (this.date.getMonth() + 1).toString().length 2 '0' + (this.date.getMonth() + 1) : (this.date.getMonth() + 1);
 strDay = this.date.getDate().toString().length 2 '0' + this.date.getDate() : this.date.getDate();
 switch(type.toString().toUpperCase()) {
 case 'YYYYMMDD':
 strRtn = strYear + strMonth + strDay;
 break;
 case 'YYYY/MM/DD':
 strRtn = strYear + '/' + strMonth + '/' + strDay;
 break;
 case 'YYYY-MM-DD':
 strRtn = strYear + '-' + strMonth + '-' + strDay;
 break;
 default:
 strRtn = strYear + '/' + strMonth + '/' + strDay;
 break;
 return strRtn;
 return this;
 Dt.fn.init.prototype = Dt.fn;
 Dt.fn.extend = Dt.extend = function () {
 var len = arguments.length,
 i = 1,
 objRtn = arguments[0];
 for(;i len;i++){
 for(var j in arguments[i]){
 objRtn[j] = arguments[i][j];
 return objRtn;
 Dt.fn.create = Dt.create = function() {
 this.render(arguments[0]);
 createDateList.call(this);
 function insertAfter(target, node) {
 //node.style.left = target.offsetLeft + "px";
 if(target.parentNode.children.length == 1) {
 target.parentNode.appendChild(node);
 } else {
 target.parentNode.insertBefore(node, target.nextSibling);
 function setStyle(target, opts) {
 for(var item in opts){
 target.style[item] = opts[item];
 function createHeader() {
 var me = this;
 var divHeader = document.createElement('div');
 setStyle(divHeader, {
 height: '30px',
 borderBottom: '1px solid silver',
 position: 'relative',
 backgroundColor: 'rgba(214,222,247,1)'
 var btnLastMonth = document.createElement('div');
 btnLastMonth.title = "上月";
 btnLastMonth.onclick = function() {
 var speed_last_month = 1;
 var speed_current_month = 1;
 var b_last_month = false;
 var b_current_month = false;
 var next_month_left = parseInt(me.ponent.style.left);
 var timer = setInterval(function() {
 if(!b_last_month) {
 if(parseInt(me.Container.children[1].style.left) 0) {
 me.Container.children[1].style.left = parseInt(me.Container.children[1].style.left) + Math.floor(5 / speed_last_month) + 'px';
 speed_last_month += 0.01;
 } else {
 b_last_month = !b_last_month;
 if(!b_current_month) {
 if(parseInt(me.Container.children[2].style.left) next_month_left) {
 me.Container.children[2].style.left = parseInt(me.Container.children[2].style.left) + Math.floor(5 / speed_current_month) + 'px';
 speed_current_month += 0.01;
 } else {
 b_current_month = !b_current_month;
 if(b_last_month b_current_month) {
 clearInterval(timer);
 me.date = me.getFirstdateInMonth();
 me.date = me.getCalDate(me.date, 'M', -1);
 me.render({value: me.date});
 var objContent = createContent.call(me);
 me.Container.removeChild(me.Container.children[3]);
 me.Container.insertBefore(ponent, me.Container.children[0].nextSibling);
 me.Container.replaceChild(ponent, me.Container.children[3]);
 me.Container.children[2].style.left = 0;
 me.Container.children[2].style.position = 'absolute';
 me.Container.children[3].style.left = '250px';
 me.Container.children[3].style.position = 'relative';
 me.content.nextMonth = objContent.nextMonth;
 me.content.nextMonth.left = 250;
 me.content.currentMonth = me.content.lastMonth;
 me.content.currentMonth.left = 0;
 me.content.lastMonth = objContent.lastMonth;
 me.content.lastMonth.left = -275;
 me.header.children[2].innerHTML = me.formatDate(me.getFirstdateInMonth());
 me[0].value = me.formatDate(me.getFirstdateInMonth());
 }, 10);
 setStyle(btnLastMonth, {
 cursor: 'pointer',
 height: '30px',
 border: 0,
 display: 'inline',
 width: '30px',
 position: 'absolute',
 left: 0
 var canvas_last_month = document.createElement('canvas');
 if(canvas_last_month.getContext('2d')) {
 canvas_last_month.height = 30;
 canvas_last_month.width = 30;
 var ctx = canvas_last_month.getContext('2d');
 ctx.beginPath();
 ctx.fillStyle = 'rgba(214,222,247,1)';
 ctx.fillRect(0, 0, 30, 30);
 ctx.strokeStyle = 'rgba(251,251,251,1)';
 ctx.fillStyle = 'rgba(251,251,251,1)';
 ctx.lineWidth = 1;
 ctx.moveTo(7, 0);
 ctx.lineTo(15, 0);
 ctx.lineTo(8, 15);
 ctx.lineTo(15, 30);
 ctx.lineTo(7, 30);
 ctx.lineTo(0, 15);
 ctx.lineTo(7, 0);
 ctx.moveTo(22, 0);
 ctx.lineTo(30, 0);
 ctx.lineTo(23, 15);
 ctx.lineTo(30, 30);
 ctx.lineTo(22, 30);
 ctx.lineTo(15, 15);
 ctx.lineTo(22, 0);
 ctx.fill();
 ctx.stroke();
 btnLastMonth.appendChild(canvas_last_month);
 } else {
 btnLastMonth.innerHTML = " ";
 setStyle(btnLastMonth, {
 backgroundColor: 'rgba(214,222,247,1)'
 var btnLastDay = document.createElement('div');
 btnLastDay.title = "昨日";
 btnLastDay.onclick = function() {
 if(me.getCalDate(me.date, 'D', -1).getMonth() + 1 == me.month) {
 me.date = me.getCalDate(me.date, 'D', -1);
 me.render({value: me.date});
 var objContent = createContent.call(me);
 me.Container.replaceChild(ponent, me.Container.children[2]);
 me.header.children[2].innerHTML = me.formatDate(me.date);
 me[0].value = me.formatDate(me.date);
 } else {
 var speed_last_month = 1;
 var speed_current_month = 1;
 var b_last_month = false;
 var b_current_month = false;
 var next_month_left = parseInt(me.ponent.style.left);
 me.date = me.getCalDate(me.date, 'D', -1);
 me.render({value: me.date});
 var objContent = createContent.call(me);
 me.Container.replaceChild(ponent, me.Container.children[1]);
 me.Container.children[1].style.left = '-275px';
 var timer = setInterval(function() {
 if(!b_current_month) {
 if(parseInt(me.Container.children[2].style.left) next_month_left) {
 me.Container.children[2].style.left = parseInt(me.Container.children[2].style.left) + Math.floor(5 / speed_current_month) + 'px';
 speed_current_month += 0.01;
 } else {
 b_current_month = !b_current_month;
 if(!b_last_month) {
 if(parseInt(me.Container.children[1].style.left) 0) {
 me.Container.children[1].style.left = parseInt(me.Container.children[1].style.left) + Math.floor(5 / speed_last_month) + 'px';
 speed_last_month += 0.01;
 } else {
 b_last_month = !b_last_month;
 if(b_last_month b_current_month) {
 clearInterval(timer);
 me.Container.removeChild(me.Container.children[3]);
 me.Container.insertBefore(ponent, me.Container.children[0].nextSibling);
 me.Container.replaceChild(ponent, me.Container.children[3]);
 me.Container.children[2].style.left = 0;
 me.Container.children[2].style.position = 'absolute';
 me.Container.children[3].style.left = '250px';
 me.Container.children[3].style.position = 'relative';
 me.content.nextMonth = objContent.nextMonth;
 me.content.nextMonth.left = 250;
 me.content.currentMonth = me.content.lastMonth;
 me.content.currentMonth.left = 0;
 me.content.lastMonth = objContent.lastMonth;
 me.content.lastMonth.left = -275;
 me.header.children[2].innerHTML = me.formatDate(me.getFirstdateInMonth());
 me[0].value = me.formatDate(me.getFirstdateInMonth());
 }, 10);
 setStyle(btnLastDay, {
 cursor: 'pointer',
 height: '30px',
 width: '30px',
 display: 'inline',
 position: 'absolute',
 left: '31px'
 var canvas_last_day = document.createElement('canvas');
 if(canvas_last_day.getContext('2d')) {
 canvas_last_day.height = 30;
 canvas_last_day.width = 30;
 var ctx = canvas_last_day.getContext('2d');
 ctx.beginPath();
 ctx.fillStyle = 'rgba(214,222,247,1)';
 ctx.fillRect(0, 0, 30, 30);
 ctx.strokeStyle = 'rgba(251,251,251,1)';
 ctx.fillStyle = 'rgba(251,251,251,1)';
 ctx.lineWidth = 1;
 ctx.moveTo(11, 0);
 ctx.lineTo(19, 0);
 ctx.lineTo(12, 15);
 ctx.lineTo(19, 30);
 ctx.lineTo(11, 30);
 ctx.lineTo(4, 15);
 ctx.lineTo(11, 0);
 ctx.fill();
 ctx.stroke();
 btnLastDay.appendChild(canvas_last_day);
 } else {
 btnLastDay.innerHTML = " 
 setStyle(btnLastDay, {
 backgroundColor: 'rgba(214,222,247,1)'
 var spanDt = document.createElement('div');
 spanDt.innerHTML = this.formatDate(this.date);
 setStyle(spanDt, {
 position: 'absolute',
 margin: '0 auto',
 top: '5px',
 right: 0,
 bottom: 0,
 left: 0,
 width: '100px'
 var btnTomorrow = document.createElement('div');
 btnTomorrow.title = "明日";
 btnTomorrow.onclick = function() {
 if(me.getCalDate(me.date, 'D', 1).getMonth() + 1 == me.month) {
 me.date = me.getCalDate(me.date, 'D', 1);
 me.render({value: me.date});
 var objContent = createContent.call(me);
 me.Container.replaceChild(ponent, me.Container.children[2]);
 me.Container.children[2].style.left = 0;
 me.header.children[2].innerHTML = me.formatDate(me.date);
 me[0].value = me.formatDate(me.date);
 } else {
 var speed_next_month = 1;
 var speed_current_month = 1;
 var b_next_month = false;
 var b_current_month = false;
 var last_month_left = parseInt(me.ponent.style.left);
 me.date = me.getCalDate(me.date, 'D', 1);
 me.render({value: me.date});
 var objContent = createContent.call(me);
 me.Container.replaceChild(ponent, me.Container.children[3]);
 me.Container.children[3].style.left = '250px';
 var timer = setInterval(function() {
 if(!b_current_month) {
 if(parseInt(me.Container.children[2].style.left) last_month_left) {
 me.Container.children[2].style.left = parseInt(me.Container.children[2].style.left) - Math.floor(5 / speed_current_month) + 'px';
 speed_current_month += 0.01;
 } else {
 b_current_month = !b_current_month;
 if(!b_next_month) {
 if(parseInt(me.Container.children[3].style.left) 0) {
 me.Container.children[3].style.left = parseInt(me.Container.children[3].style.left) - Math.floor(5 / speed_next_month) + 'px';
 speed_next_month += 0.01;
 } else {
 b_next_month = !b_next_month;
 if(b_next_month b_current_month) {
 clearInterval(timer);
 me.Container.removeChild(me.Container.children[1]);
 me.Container.insertBefore(ponent, me.Container.children[2].nextSibling);
 me.Container.replaceChild(ponent, me.Container.children[1]);
 me.Container.children[2].style.left = 0;
 me.Container.children[2].style.position = 'absolute';
 me.Container.children[3].style.left = '250px';
 me.Container.children[3].style.position = 'relative';
 me.content.nextMonth = objContent.nextMonth;
 me.content.nextMonth.left = 250;
 me.content.currentMonth = me.content.nextMonth;
 me.content.currentMonth.left = 0;
 me.content.lastMonth = objContent.lastMonth;
 me.content.lastMonth.left = -275;
 me.header.children[2].innerHTML = me.formatDate(me.getFirstdateInMonth());
 me[0].value = me.formatDate(me.getFirstdateInMonth());
 }, 10);
 setStyle(btnTomorrow, {
 cursor: 'pointer',
 height: '30px',
 width: '30px',
 display: 'inline',
 position: 'absolute',
 right: '31px'
 var canvas_tomorrow = document.createElement('canvas');
 if(canvas_tomorrow.getContext('2d')) {
 canvas_tomorrow.height = 30;
 canvas_tomorrow.width = 30;
 var ctx = canvas_tomorrow.getContext('2d');
 ctx.beginPath();
 ctx.fillStyle = 'rgba(214,222,247,1)';
 ctx.fillRect(0, 0, 30, 30);
 ctx.strokeStyle = 'rgba(251,251,251,1)';
 ctx.fillStyle = 'rgba(251,251,251,1)';
 ctx.lineWidth = 1;
 ctx.moveTo(11, 0);
 ctx.lineTo(19, 0);
 ctx.lineTo(26, 15);
 ctx.lineTo(19, 30);
 ctx.lineTo(11, 30);
 ctx.lineTo(18, 15);
 ctx.lineTo(11, 0);
 ctx.fill();
 ctx.stroke();
 btnTomorrow.appendChild(canvas_tomorrow);
 } else {
 btnTomorrow.innerHTML = " 
 setStyle(btnTomorrow, {
 backgroundColor: 'rgba(214,222,247,1)'
 var btnNextMonth = document.createElement('div');
 btnNextMonth.title = "下月";
 btnNextMonth.onclick = function() {
 var speed_next_month = 1;
 var speed_current_month = 1;
 var b_next_month = false;
 var b_current_month = false;
 var last_month_left = parseInt(me.ponent.style.left);
 var timer = setInterval(function() {
 if(!b_next_month) {
 if(parseInt(me.Container.children[3].style.left) 0) {
 me.Container.children[3].style.left = parseInt(me.Container.children[3].style.left) - Math.floor(5 / speed_next_month) + 'px';
 speed_next_month += 0.01;
 } else {
 b_next_month = !b_next_month;
 if(!b_current_month) {
 if(parseInt(me.Container.children[2].style.left) last_month_left) {
 me.Container.children[2].style.left = parseInt(me.Container.children[2].style.left) - Math.floor(5 / speed_current_month) + 'px';
 speed_current_month += 0.01;
 } else {
 b_current_month = !b_current_month;
 if(b_next_month b_current_month) {
 clearInterval(timer);
 me.date = me.getFirstdateInMonth();
 me.date = me.getCalDate(me.date, 'M', 1);
 me.render({value: me.date});
 var objContent = createContent.call(me);
 me.Container.removeChild(me.Container.children[1]);
 me.Container.insertBefore(ponent, me.Container.children[2].nextSibling);
 me.Container.replaceChild(ponent, me.Container.children[1]);
 me.Container.children[1].style.left = '-275px';
 me.Container.children[1].style.position = 'absolute';
 me.Container.children[2].style.left = '0';
 me.Container.children[2].style.position = 'absolute';
 me.content.lastMonth = objContent.lastMonth;
 me.content.lastMonth.left = -275;
 me.content.currentMonth = me.content.nextMonth;
 me.content.currentMonth.left = 0;
 me.content.nextMonth = objContent.nextMonth;
 me.content.nextMonth.left = 250;
 me.header.children[2].innerHTML = me.formatDate(me.getFirstdateInMonth());
 me[0].value = me.formatDate(me.getFirstdateInMonth());
 }, 10);
 setStyle(btnNextMonth, {
 cursor: 'pointer',
 height: '30px',
 border: 0,
 display: 'inline',
 width: '30px',
 position: 'absolute',
 right: 0
 var canvas_next_month = document.createElement('canvas');
 if(canvas_next_month.getContext('2d')) {
 canvas_next_month.height = 30;
 canvas_next_month.width = 30;
 var ctx = canvas_next_month.getContext('2d');
 ctx.beginPath();
 ctx.fillStyle = 'rgba(214,222,247,1)';
 ctx.fillRect(0, 0, 30, 30);
 ctx.strokeStyle = 'rgba(251,251,251,1)';
 ctx.fillStyle = 'rgba(251,251,251,1)';
 ctx.lineWidth = 1;
 ctx.moveTo(0, 0);
 ctx.lineTo(8, 0);
 ctx.lineTo(15, 15);
 ctx.lineTo(8, 30);
 ctx.lineTo(0, 30);
 ctx.lineTo(7, 15);
 ctx.lineTo(0, 0);
 ctx.moveTo(15, 0);
 ctx.lineTo(23, 0);
 ctx.lineTo(30, 15);
 ctx.lineTo(23, 30);
 ctx.lineTo(15, 30);
 ctx.lineTo(22, 15);
 ctx.lineTo(15, 0);
 ctx.fill();
 ctx.stroke();
 btnNextMonth.appendChild(canvas_next_month);
 } else {
 btnNextMonth.innerHTML = " ";
 setStyle(btnNextMonth, {
 backgroundColor: 'rgba(214,222,247,1)'
 divHeader.appendChild(btnLastMonth);
 divHeader.appendChild(btnLastDay);
 divHeader.appendChild(spanDt);
 divHeader.appendChild(btnTomorrow);
 divHeader.appendChild(btnNextMonth);
 return divHeader;
 function createContent() {
 var realDate = this.date;
 var objContent = {
 lastMonth: {
 scope: function() {
 this.date = this.getFirstdateInMonth();
 this.date = this.getCalDate(this.date, 'M', -1);
 this.render({value: this.date});
 current: true,
 left: -275,
 component: null
 currentMonth: {
 scope: function() {
 if(this.initialize) {
 this.date = realDate;
 } else {
 this.date = new Date();
 this.render({value: this.date});
 current: true,
 left: 0,
 component: null
 nextMonth: {
 scope: function() {
 this.date = this.getFirstdateInMonth();
 this.date = this.getCalDate(this.date, 'M', 1);
 this.render({value: this.date});
 current: false,
 left: 250,
 component: null
 for(var item in objContent) {
 objContent[item].scope.call(this);
 objContent[item].year = this.year;
 objContent[item].month = this.month;
 var divContent = document.createElement('div');
 setStyle(divContent, {
 height: '250px',
 position: objContent[item].current 'absolute' : 'relative',
 left: objContent[item].left + 'px'
 var tbl = document.createElement('table'),
 row_obj,
 cell_obj,
 row_num = tbl.rows.length,
 cell_num = 0;
 setStyle(tbl, {
 width: '100%'
 row_obj = tbl.insertRow(row_num);
 setStyle(row_obj, {
 backgroundColor: 'rgba(214,222,247,1)'
 row_obj.setAttribute('head', true);
 cell_obj = row_obj.insertCell(cell_num++);
 cell_obj.innerHTML = "一";
 cell_obj.style.width = "35px";
 cell_obj = row_obj.insertCell(cell_num++);
 cell_obj.innerHTML = "二";
 cell_obj.style.width = "35px";
 cell_obj = row_obj.insertCell(cell_num++);
 cell_obj.innerHTML = "三";
 cell_obj.style.width = "35px";
 cell_obj = row_obj.insertCell(cell_num++);
 cell_obj.innerHTML = "四";
 cell_obj.style.width = "35px";
 cell_obj = row_obj.insertCell(cell_num++);
 cell_obj.innerHTML = "五";
 cell_obj.style.width = "35px";
 cell_obj = row_obj.insertCell(cell_num++);
 cell_obj.innerHTML = "六";
 cell_obj.style.width = "35px";
 cell_obj = row_obj.insertCell(cell_num++);
 cell_obj.innerHTML = "日";
 cell_obj.style.width = "35px";
 var dtFirst = this.getFirstdateInMonth();
 var aryDate = [];
 var aryWeekDate = new Array(7);
 for (var i = 0; i this.count; i++) {
 if (i == 0) {
 aryWeekDate = new Array(7);
 aryWeekDate[(dtFirst.getDay() == 0 7 : dtFirst.getDay()) - 1] = dtFirst;
 var weekNumberForFirstDay = dtFirst.getDay() == 0 7 : dtFirst.getDay();
 var d = 0;
 while(weekNumberForFirstDay 1) {
 aryWeekDate[weekNumberForFirstDay - 2] = this.getCalDate(dtFirst, 'D', -1 - d);
 weekNumberForFirstDay--;
 d++;
 if (dtFirst.getDay() == 0) {
 aryDate.push(aryWeekDate);
 } else {
 if (i == this.count - 1 this.getCalDate(dtFirst, 'D', i).getDay() != 0) {
 var weekNumberForNextDay = this.getCalDate(dtFirst, 'D', i).getDay();
 var n = 0;
 if(weekNumberForNextDay == 1){
 aryWeekDate = new Array(7);
 while(weekNumberForNextDay 8){
 aryWeekDate[weekNumberForNextDay - 1] = this.getCalDate(dtFirst, 'D', i + n);
 weekNumberForNextDay++;
 n++;
 aryDate.push(aryWeekDate);
 if (this.getCalDate(dtFirst, 'D', i).getDay() == 1) {
 aryWeekDate = new Array(7);
 aryWeekDate[0] = this.getCalDate(dtFirst, 'D', i);
 } else if (this.getCalDate(dtFirst, 'D', i).getDay() == 0) {
 aryWeekDate[6] = this.getCalDate(dtFirst, 'D', i);
 aryDate.push(aryWeekDate);
 } else {
 aryWeekDate[this.getCalDate(dtFirst, 'D', i).getDay() - 1] = this.getCalDate(dtFirst, 'D', i);
 for (var j = 0; j aryDate.length; j++) {
 row_obj = tbl.insertRow(tbl.rows.length);
 row_obj.style.height = '34px';
 cell_num = 0;
 for (var k = 0; k aryDate[j].length; k++) {
 cell_obj = row_obj.insertCell(cell_num++);
 cell_obj.innerHTML = aryDate[j][k] != undefined aryDate[j][k].getDate() : '';
 cell_obj.style.width = "30px";
 cell_obj.style.cursor = "default";
 cell_obj.style.borderRadius = '17px';
 // set style for today
 if(aryDate[j][k] != undefined
 this.month == new Date().getMonth() + 1
 this.year == new Date().getFullYear()
 aryDate[j][k].getDate() == new Date().getDate()) {
 cell_obj.style.border = '1px solid silver';
 // set style for days of other month
 if(aryDate[j][k] != undefined this.month != aryDate[j][k].getMonth() + 1) {
 cell_obj.style.color = 'silver';
 cell_obj.setAttribute('no-current-month', true);
 if(aryDate[j][k].getFullYear() this.year) {
 cell_obj.setAttribute('last-month', true);
 } else if(aryDate[j][k].getFullYear() == this.year) {
 if(aryDate[j][k].getMonth() + 1 this.month) {
 cell_obj.setAttribute('last-month', true);
 } else {
 cell_obj.setAttribute('next-month', true);
 } else {
 cell_obj.setAttribute('next-month', true);
 if(aryDate[j][k] != undefined this.year == aryDate[j][k].getFullYear()
 this.month == aryDate[j][k].getMonth() + 1
 this.day == aryDate[j][k].getDate()) {
 cell_obj.style.color = 'white';
 cell_obj.style.backgroundColor = 'rgba(245,169,244,1)';
 cell_obj.setAttribute('current-date', true);
 cell_obj.onmouseover = function () {
 this.style.backgroundColor = 'rgba(245,169,244,1)';
 this.style.color = 'white';
 cell_obj.onmouseout = function () {
 if(!this.getAttribute('current-date')) {
 this.style.backgroundColor = "white";
 this.style.color = 'black';
 } else {
 this.style.color = 'white';
 if(this.getAttribute('no-current-month')) {
 this.style.color = 'silver';
 var me = this;
 tbl.onclick = function (e) {
 var e = (e || event.srcElement).target;
 if(e.tagName.toString().toLowerCase() == 'td' !e.parentNode.getAttribute('head')) {
 if(!e.getAttribute('no-current-month')) {
 me.date = new Date(me.date.getFullYear(), me.date.getMonth(), parseInt(e.innerHTML));
 me.render({value: me.date});
 var objContent = createContent.call(me);
 me.Container.replaceChild(ponent, me.Container.children[2]);
 me.header.children[2].innerHTML = me.formatDate(me.date);
 me[0].value = me.formatDate(me.date);
 } else {
 if(e.getAttribute('last-month')) {
 var speed_last_month = 1;
 var speed_current_month = 1;
 var b_last_month = false;
 var b_current_month = false;
 var next_month_left = parseInt(me.ponent.style.left);
 if(me.date.getMonth() == 0) {
 me.date = new Date(me.date.getFullYear() - 1, 11, parseInt(e.innerHTML));
 } else {
 me.date = new Date(me.date.getFullYear(), me.date.getMonth() - 1, parseInt(e.innerHTML));
 me.render({value: me.date});
 var objContent = createContent.call(me);
 me.Container.replaceChild(ponent, me.Container.children[1]);
 me.Container.children[1].style.left = '-275px';
 var timer = setInterval(function() {
 if(!b_current_month) {
 if(parseInt(me.Container.children[2].style.left) next_month_left) {
 me.Container.children[2].style.left = parseInt(me.Container.children[2].style.left) + Math.floor(5 / speed_current_month) + 'px';
 speed_current_month += 0.01;
 } else {
 b_current_month = !b_current_month;
 if(!b_last_month) {
 if(parseInt(me.Container.children[1].style.left) 0) {
 me.Container.children[1].style.left = parseInt(me.Container.children[1].style.left) + Math.floor(5 / speed_last_month) + 'px';
 speed_last_month += 0.01;
 } else {
 b_last_month = !b_last_month;
 if(b_last_month b_current_month) {
 clearInterval(timer);
 me.Container.removeChild(me.Container.children[3]);
 me.Container.insertBefore(ponent, me.Container.children[0].nextSibling);
 me.Container.replaceChild(ponent, me.Container.children[3]);
 me.Container.children[2].style.left = 0;
 me.Container.children[2].style.position = 'absolute';
 me.Container.children[3].style.left = '250px';
 me.Container.children[3].style.position = 'relative';
 me.content.nextMonth = objContent.nextMonth;
 me.content.nextMonth.left = 250;
 me.content.currentMonth = me.content.lastMonth;
 me.content.currentMonth.left = 0;
 me.content.lastMonth = objContent.lastMonth;
 me.content.lastMonth.left = -275;
 me.header.children[2].innerHTML = me.formatDate(me.getFirstdateInMonth());
 me[0].value = me.formatDate(me.getFirstdateInMonth());
 }, 10);
 } else {
 var speed_next_month = 1;
 var speed_current_month = 1;
 var b_next_month = false;
 var b_current_month = false;
 var last_month_left = parseInt(me.ponent.style.left);
 if(me.date.getMonth() == 11) {
 me.date = new Date(me.date.getFullYear() + 1, 0, parseInt(e.innerHTML));
 } else {
 me.date = new Date(me.date.getFullYear(), me.date.getMonth() + 1, parseInt(e.innerHTML));
 me.render({value: me.date});
 var objContent = createContent.call(me);
 me.Container.replaceChild(ponent, me.Container.children[3]);
 me.Container.children[3].style.left = '250px';
 var timer = setInterval(function() {
 if(!b_current_month) {
 if(parseInt(me.Container.children[2].style.left) last_month_left) {
 me.Container.children[2].style.left = parseInt(me.Container.children[2].style.left) - Math.floor(5 / speed_current_month) + 'px';
 speed_current_month += 0.01;
 } else {
 b_current_month = !b_current_month;
 if(!b_next_month) {
 if(parseInt(me.Container.children[3].style.left) 0) {
 me.Container.children[3].style.left = parseInt(me.Container.children[3].style.left) - Math.floor(5 / speed_next_month) + 'px';
 speed_next_month += 0.01;
 } else {
 b_next_month = !b_next_month;
 if(b_next_month b_current_month) {
 clearInterval(timer);
 me.Container.removeChild(me.Container.children[1]);
 me.Container.insertBefore(ponent, me.Container.children[2].nextSibling);
 me.Container.replaceChild(ponent, me.Container.children[1]);
 me.Container.children[2].style.left = 0;
 me.Container.children[2].style.position = 'absolute';
 me.Container.children[3].style.left = '250px';
 me.Container.children[3].style.position = 'relative';
 me.content.nextMonth = objContent.nextMonth;
 me.content.nextMonth.left = 250;
 me.content.currentMonth = me.content.nextMonth;
 me.content.currentMonth.left = 0;
 me.content.lastMonth = objContent.lastMonth;
 me.content.lastMonth.left = -275;
 me.header.children[2].innerHTML = me.formatDate(me.getFirstdateInMonth());
 me[0].value = me.formatDate(me.getFirstdateInMonth());
 }, 10);
 divContent.appendChild(tbl);
 objContent[item].component = divContent;
 // reset date to current month
 this.date = realDate;
 this.render({value: this.date});
 return objContent;
 function createFooter() {
 var me = this;
 var divFooter = document.createElement('div');
 setStyle(divFooter, {
 height: '30px',
 width: '100%',
 position: 'absolute',
 bottom: 0
 var divContainer = document.createElement('div');
 setStyle(divContainer, {
 position: 'relative',
 width: '95%',
 height: '30px'
 var btnClose= document.createElement('div');
 setStyle(btnClose, {
 position: 'absolute',
 width: '100%',
 top: 0,
 right: 0,
 bottom: '5px',
 left: 0,
 cursor: 'pointer',
 border: '1px solid silver',
 borderRadius: '4px',
 backgroundColor: 'rgba(214,222,247,1)',
 color: 'white',
 margin: '0 5px'
 btnClose.innerHTML = '关闭';
 btnClose.onclick = function() {
 setStyle(me.Container, {
 display: 'none'
 divContainer.appendChild(btnClose);
 divFooter.appendChild(divContainer);
 return divFooter;
 function createDateList() {
 this.Container = document.createElement('div');
 setStyle(this.Container, {
 position: 'relative',
 marginTop: '5px',
 borderRadius: '3px',
 width: '250px',
 height: '320px',
 border: '1px solid silver',
 //float: 'left',
 textAlign: 'center',
 display: 'none',
 overflow: 'hidden'
 this.header = createHeader.call(this);
 this.content = createContent.call(this);
 this.footer = createFooter.call(this);
 this.Container.appendChild(this.header);
 for(var item in this.content) {
 this.Container.appendChild(this.content[item].component);
 this.initialize = true;
 this.Container.appendChild(this.footer);
 insertAfter(this[0], this.Container);
 Dt.fn.choose = function (options) {
 options = options || {};
 var defaults = {
 value: new Date()
 var opt = this.extend({}, defaults, options);
 this.create(opt);
 this[0].onfocus = function() {
 this.parentNode.children[1].style.display = '';
 var $ = function (selector) {
 return Dt(selector);
 window.$ = $;
 })()
 window.onload = function () {
 $('#txtDt').choose();
 }

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