用jQuery写个简单的日历组件
说到日历组件，网上一搜一大堆，各种插件啊、集成框架啊实在不少。但是插件有的不合需求，框架嘛依赖关系一大堆，比如jQueryUI、bootstrap等。其实现在我就是想要一个轻量级的日历组件，功能也不需要很强大，只要能兼容所有浏览器，能选择任意年份日期和星期就可以了。
好了，废话不多说，直接上代码：
好了，先引入jQuery库。（发表一下感概：angularJS的数据双向绑定着实让我对jQuery的未来担忧了一阵子，不过jQuery毕竟存在的时间很久，API文档和应用方面实在太广泛了 * _ *，而且jQuery无可厚非是一款相当不错的DOM操作类库，至少我觉得段时间内这个地位无可动摇。所以大家还是大胆地用吧！）
<script type="text/javascript" src="./js/jQuery.min.js">script>下面这个是还没压缩的js文件，纯手写哦 ^_^
/*
* jquery extend: dateField
* author:jafeney
* createTime:2015-8-28 （很久之前写的，拿出来炒下冷饭）
*/
jQuery.fn.extend({
dateField:function(options,callback){
var self=this,
_self=$(this),
_eventType=options.eventType || 'click',
_style=options.style || 'default',
_parent=$(this).parent(),
_nowDate={
year:new Date().getFullYear(),
month:new Date().getMonth()+1
},
_switchState=0,
_monthArray=['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'],
_daysArray=[31,28,31,30,31,30,31,31,30,31,30,31];
/*init*/
_self.on(_eventType,function(){
/*before use this extend,the '_self' must have a container*/
_self.parent().css('position','relative');
/*create element as dateField's container*/
var _container=$("");
var _header=$(""
+""
+"«"
+""+_nowDate.year+"年"+_nowDate.month+"月"
+"»"
+""
+"- 日
- 一
- 二
- 三
- 四
- 五
- 六
"
+"");
var _body=$(""+self.getDays(_nowDate.year,_nowDate.month)+"");
var _footer=$("");
_container.append(_header).append(_body).append(_footer);
_self.parent().append(_container);
_self.parent().find('.dateField-container').show();
/*do callback*/
if(callback) callback();
});
/*some functions*/
/*get any year and any month's days into a list*/
self.getDays=function(year,month){
var _monthDay=self.getMonthDays(year,month);
var _firstDay=new Date(year+'/'+month+'/'+'01').getDay(); //get this month's first day's weekday
var returnStr='';
returnStr+=""
;
for(var i=1;i<=42;i++){
if(i<=_monthDay+_firstDay){
if(i%7===0){
returnStr+="" +self.filterDay(i-_firstDay)+"";
}else{
returnStr+="" +self.filterDay(i-_firstDay)+"";
}
}else{
if(i%7===0){
returnStr+="";
}else{
returnStr+="";
}
}
}
returnStr+="";
return returnStr;
}
/*filter days*/
self.filterDay=function(day){
if(day<=0 || day>31) {
return '';
}else{
return day;
}
}
/*judge any year is LeapYear*/
self.isLeapYear=function(year){
var bolRet = false;
if (0===year%4&&((year%100!==0)||(year%400===0))) {
bolRet = true;
}
return bolRet;
}
/*get any year and any month's full days*/
self.getMonthDays=function(year,month){
var c=_daysArray[month-1];
if((month===2) && self.isLeapYear(year)) c++;
return c;
}
/*get this year's months*/
self.getMonths=function(){
var returnStr="";
returnStr=""
;
for(var i=0;i<12;i++){
if((i+1)%3===0){
returnStr+="" +self.switchMonth(i)+"";
}else{
returnStr+="" +self.switchMonth(i)+"";
}
}
returnStr+='';
return returnStr;
}
/*get siblings 12 years*/
self.getYears=function(year){
var returnStr="";
returnStr=""
;
for(var i=0;i<12;i++){
if((i+1)%3===0){
returnStr+="" +(year+i)+"";
}else{
returnStr+="" +(year+i)+"";
}
}
returnStr+='';
return returnStr;
}
/*formatDate*/
self.formatDate=function(date){
if(date.length===1 || date<10){
return '0'+date;
}else{
return date;
}
}
/*switch month number to chinese*/
self.switchMonth=function(number){
return _monthArray[number];
}
/*go to prev*/
_parent.on('click','.dateField-header-btn-left',function(){
switch(_switchState){
/*prev month*/
case 0:
_nowDate.month--;
if(_nowDate.month===0){
_nowDate.year--;
_nowDate.month=12;
}
$(this).siblings('.dateField-header-datePicker').text(_nowDate.year+'年'+_nowDate.month+'月');
$(this).parent().siblings('ul').show();
$(this).parent().parent().siblings('.dateField-body').html(self.getDays(_nowDate.year,_nowDate.month));
break;
/*next 12 years*/
case 2:
_nowDate.year-=12;
$(this).parent().parent().siblings('.dateField-body').html(self.getYears(_nowDate.year));
break;
default:
break;
}
});
/*go to next*/
_parent.on('click','.dateField-header-btn-right',function(){
switch(_switchState){
/*next month*/
case 0:
_nowDate.month++;
if(_nowDate.month===13){
_nowDate.year++;
_nowDate.month=1;
}
$(this).siblings('.dateField-header-datePicker').text(_nowDate.year+'年'+_nowDate.month+'月');
$(this).parent().siblings('ul').show();
$(this).parent().parent().siblings('.dateField-body').html(self.getDays(_nowDate.year,_nowDate.month));
break;
/*next 12 years*/
case 2:
_nowDate.year+=12;
$(this).parent().parent().siblings('.dateField-body').html(self.getYears(_nowDate.year));
break;
default:
break;
}
});
/*switch choose year or month*/
_parent.on('click','.dateField-header-datePicker',function(){
switch(_switchState){
case 0:
/*switch month select*/
$(this).parent().siblings('ul').hide();
$(this).parent().parent().siblings('.dateField-body').html(self.getMonths());
_switchState=1;
break;
case 1:
/*switch year select*/
$(this).parent().parent().siblings('.dateField-body').html(self.getYears(_nowDate.year));
_switchState=2;
break;
default:
break;
}
});
/*select a year*/
_parent.on('click','.dateField-select.select-year',function(){
if($(this).text()!==''){
$(this).parent().children('.dateField-select.select-year').removeClass('active');
$(this).addClass('active');
_nowDate.year=$(this).data('year');
$(this).parent().parent().siblings().find('.dateField-header-datePicker').text(_nowDate.year+'年'+_nowDate.month+'月');
$(this).parent().parent().parent().find('.dateField-header-week').hide();
$(this).parent().parent().html(self.getMonths());
_switchState=1;
}
});
/*select a month*/
_parent.on('click','.dateField-select.select-month',function(){
if($(this).text()!==''){
$(this).parent().children('.dateField-select.select-month').removeClass('active');
$(this).addClass('active');
_nowDate.month=$(this).data('month');
$(this).parent().parent().siblings().find('.dateField-header-datePicker').text(_nowDate.year+'年'+_nowDate.month+'月');
$(this).parent().parent().parent().find('.dateField-header-week').show();
$(this).parent().parent().html(self.getDays(_nowDate.year,_nowDate.month));
_switchState=0;
}
});
/*select a day*/
_parent.on('click','.dateField-select.select-day',function(){
if($(this).text()!==''){
var _day=$(this).text();
$(this).parent().children('.dateField-select.select-day').removeClass('active');
$(this).addClass('active');
var _selectedDate=_nowDate.year+'-'+self.formatDate(_nowDate.month)+'-'+self.formatDate(_day);
_self.val(_selectedDate).attr('data-Date',_selectedDate);
_self.parent().find('.dateField-container').remove();
/*template code： just for this page*/
$('#check-birthday').removeClass('fail').hide();
}
});
/*close the dateFiled*/
/*click other field to close the dateField (outclick event)*/
$(document).on('click',function(e){
var temp=$(e.target);
if(temp.hasClass('dateField-container') || temp.hasClass('dateField-header-btn-left') || temp.hasClass('dateField-header-datePicker') || $(e.target).hasClass('dateField-header-btn-right') || $(e.target).hasClass('dateField-select') || $(e.target)[0].id===_self.attr('id')){
;
}else{
$('.dateField-container').remove();
_switchState=0;
}
});
return self;
}
});下面是我 写的简单的一套样式风格，有点模仿微信的风格。
/*dateField styles*/
/*reset*/
ul,li{
list-style: none;
padding:0;
margin:0;
}
/*default*/
.dateField-container{
position:absolute;
width:210px;
border:1px solid rgb(229,229,229);
z-index:99999;
background:#fff;
font-size:13px;
margin-top:0px;
cursor: pointer;
display:none;
}
.dateField-header{
width:212px;
position:relative;
left:-1px;
}
.dateField-header-btns{
width:100%;
height:30px;
text-align:center;
background:rgb(243,95,143);
}
.btn{
user-select:none;
-webkit-user-select:none;
-moz-user-select:none;
-ms-user-select:none;
}
.dateField-header-btn-left{
float: left;
display:block;
width:30px;
height:30px;
color:#fff;
line-height:30px;
}
.dateField-header-btn-left:hover{
background:rgb(238,34,102);
}
.dateField-header-datePicker{
display:inline-block;
width:120px;
text-align:center;
color:#fff;
line-height:30px;
}
.dateField-header-datePicker:hover{
background:rgb(238,34,102);
}
.dateField-header-btn-right{
float: right;
width:30px;
height:30px;
display:block;
color:#fff;
line-height:30px;
}
.dateField-header-btn-right:hover{
background:rgb(238,34,102);
}
.dateField-header-week{
clear:both;
width:100%;
height:26px;
}
.dateField-header-week li{
float: left;
width:30px;
height:30px;
line-height:30px;
text-align:center;
}
.dateField-body{
width:100%;
}
.dateField-body-days{
clear: both;
}
.dateField-body-days li{
float: left;
width:30px;
height:30px;
box-sizing:border-box;
-webkit-box-sizing:border-box;
-ms-box-sizing:border-box;
-moz-box-sizing:border-box;
border-top:1px solid rgb(229,229,229);
border-right:1px solid rgb(229,229,229);
line-height:30px;
text-align:center;
}
.dateField-body-days li:hover{
color:#fff;
background:rgb(243,95,143);
}
.dateField-body-days li.active{
color:#fff;
background:rgb(243,95,143);
}
.dateField-body-days li.last{
border-right:0;
}
.dateField-footer{
border-top:1px solid rgb(229,229,229);
clear:both;
width:100%;
height:26px;
font-size:12px;
}
.dateField-footer-close{
margin-top:2px;
display:inline-block;
width:100%;
height:22px;
background:rgb(245,245,245);
text-align: center;
line-height:22px;
}
.dateField-footer-close:hover{
background:rgb(238,238,238);
}
.dateField-select{
user-select:none;
-webkit-user-select:none;
-ms-user-select:none;
-moz-user-select:none;
}
.dateField-body-months{
}
.dateField-body-months li{
width:70px;
height:35px;
line-height:35px;
}
.dateField-body-years li{
width:70px;
height: 35px;
line-height: 35px;
}到了最关键的时刻，怎么使用呢？嘿嘿，就2行代码。
<div class="input-group">
<input type="text" id="input-date" class="input-text">
div>
<script type="text/javascript">
;$(function(){
$('#input-date').dateField({
eventType:'click',
style:'default'
})
});
script>好吧，我承认我很装逼，故意写一大堆英文注释。不过因为需求，还是出现了汉字 ＊_＊
感兴趣的同学可以 到我的gitHub上clone一份吧 ^_^
我的地址 https://github.com/Jafeney/dateField ，欢迎star我，哈哈