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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 style="width:100%;"> <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
\d
[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
\d
[0-5]\d
*/
var regExpDt = /^\d{4}([-/]"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.content.nextMonth.component.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(objContent.lastMonth.component, me.Container.children[0].nextSibling);
me.Container.replaceChild(objContent.nextMonth.component, 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(objContent.currentMonth.component, 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.content.nextMonth.component.style.left);
me.date = me.getCalDate(me.date, 'D', -1);
me.render({value: me.date});
var objContent = createContent.call(me);
me.Container.replaceChild(objContent.currentMonth.component, 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(objContent.lastMonth.component, me.Container.children[0].nextSibling);
me.Container.replaceChild(objContent.nextMonth.component, 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(objContent.currentMonth.component, 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.content.lastMonth.component.style.left);
me.date = me.getCalDate(me.date, 'D', 1);
me.render({value: me.date});
var objContent = createContent.call(me);
me.Container.replaceChild(objContent.currentMonth.component, 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(objContent.nextMonth.component, me.Container.children[2].nextSibling);
me.Container.replaceChild(objContent.lastMonth.component, 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.content.lastMonth.component.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(objContent.nextMonth.component, me.Container.children[2].nextSibling);
me.Container.replaceChild(objContent.lastMonth.component, 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 "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 "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(objContent.currentMonth.component, 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.content.nextMonth.component.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(objContent.currentMonth.component, 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(objContent.lastMonth.component, me.Container.children[0].nextSibling);
me.Container.replaceChild(objContent.nextMonth.component, 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.content.lastMonth.component.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(objContent.currentMonth.component, 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(objContent.nextMonth.component, me.Container.children[2].nextSibling);
me.Container.replaceChild(objContent.lastMonth.component, 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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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
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