新的产品需求需要，要写一个这样的日历插件。
效果图如下：
选择日期后，显示当前可以选择的时间，时间的列表是通过ajax从后台获取的一组数据。
而且这个日期存在的情况，还是动态渲染的一个列表里面，再动态渲染的一个日历。
例如：
此时的步骤图渲染是根据后台给的一个list来渲染的，所以，里面的元素但凡要点击，要交互，就要注意事件冒泡。
bootstrap的日历插件，运用起来也没法满足需求，所以被迫自己写了一个日历
代码如下：
var date = new Date()
var nowYear = date.getFullYear(); //获取当前年份
var nowMonth = date.getMonth() + 1; //获取当前月份
var nowDay = date.getDate(); //获取当前天
var splitString = "-"; //年月日之间的分隔符
var weekDays = new Array("日", "一", "二", "三", "四", "五", "六"); //星期数组
var months = new Array("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"); //月份数组
var lastDays = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); //每个月的最后一天是几号
//变量保存，存储当前选择的年月
var checkYear = nowYear;
var checkMonth = nowMonth;
// //将选择的日期添加到输入框
function setInput(selectDay) {
$('#txt_calendar').value = checkYear + splitString + checkMonth + splitString + selectDay;
hidDate();
}
// //显示控件
function showDate() {
createDate(nowYear, nowMonth);//创建日历
console.log(nowYear, nowMonth, '创建时间日历')
//计算显示控件位置
///获取当前输入框的位置，在实际操作中需要修改此处ID
var x = $('#txt_calendar').offset().left
var y = $('#txt_calendar').offset().top + 22
console.log(x, y, 'x, y', $('#txt_calendar'))
$('#testID').css({
left: '-38px',
top: '37px'
})
}
// /*
// * 以下拼接日历框
// * 并定位日历框
// * */
// //创建日历样式
function createDate(thisYear, thisMonth) {
console.log(thisYear, thisMonth, '创建日历------------------')
var createDoc = '<div style="height: 30px;">';
//当前年月日，点击此处日历自动跳到当前日期
createDoc += '<p style="width: 100%;height: 30px;text-align: center;color: #999; display: none;" onclick="getThisDay()">当前日期 ' + nowYear + "年" + nowMonth + "月" + nowDay + "号";
//关闭日历显示
createDoc += '<span id="closeDate" onClick="hidDate()" style="float: right;font-size: 25px;margin: -20px 3px 0 0;cursor: pointer;">×</span></p></div>';;
createDoc += '<div style="margin-bottom: 8px;">';
// 上月
createDoc += '<span id="lastMonth" style="margin: 0 20px 0 25px;cursor:pointer;"><</span>';
//创建年份下拉框[1900-2099]年onchange="changeYearAndMonth()">
createDoc += '<select id ="selectYear" class="selectStyle"';
for (var y = 1900; y <= 2099; y++) {
createDoc += "<option value=" + y + ">" + y + "</option>";
}
createDoc += "</select>年";
//创建月份下拉框onchange="changeYearAndMonth()">
createDoc += '<select id ="selectMonth" style="overflow: auto;" class="selectStyle"';
for (var m = 0; m <= 12; m++) {
createDoc += `<option style='z-index: 9999;' value="${m}">${m}</option>`;
}
createDoc += "</select>月";
//下一月 onClick="nextMonthClick()"
createDoc += '<span id="nextMonth"style="float: right;margin-right: 25px;cursor:pointer; padding-left: 10px;">></span></div>';
//创建星期
createDoc += '<div class="everyWeekDay">';
for (var i = 0; i < weekDays.length; i++) {
if (weekDays[i] == "日" || weekDays[i] == "六") {
createDoc += `<span class="weekday" style="background-color: #18bc9c;color:#ccc;">${weekDays[i]}</span>`
} else {
createDoc += `<span style="background-color: #18bc9c;color:#fff;" class="weekday">${weekDays[i]}</span>`
}
}
createDoc += '</div>';
//创建每月天数
createDoc += '<div class="everyDay"><div class="marginTop">'; //日期样式DIV
var thisWeek = getThisWeekDay(thisYear, thisMonth, 1); //算出当前年月1号是星期几
/*$(this).css({ 'cursor': 'no-drop' })
* 如果当前不是星期天,创建空白日期占位
* 若是星期天，则循环输出当月天数
* 待修改优化，后期改为变色的前一个月日期
*/
if (thisWeek != 0) {
for (var i = 0; i < thisWeek; i++) {
createDoc += '<span class="days"></span>';
}
}
//循环输出当月天
//getThisMonthDay()获取当月天数
for (var i = 1; i < getThisMonthDay(thisYear, thisMonth) + 1; i++) {
// if (thisYear == nowYear && thisMonth == nowMonth && i == nowDay) {
// //今天的显示
// if (getThisWeekDay(thisYear, thisMonth, i) == 6 || getThisWeekDay(thisYear, thisMonth, i) == 0) {
// //今天是周末
// createDoc += '<span class="days anyDay" data- style="background-color:#4eccc4;color:#FFFFFF;cursor:pointer;">' + i + '</span>';
// } else {
// createDoc += '<span class="days anyDay" style="background-color:#4eccc4;color:#FFFFFF;cursor:pointer;">' + i + '</span>';
// }
// } else {
// 不可选择的变成灰色， 目前是周末变成灰色
// if (getThisWeekDay(thisYear, thisMonth, i) == 6 || getThisWeekDay(thisYear, thisMonth, i) == 0) {
// // onClick="setInput(' + i + ')"
// createDoc += '<span id="weekends" class="days anyDay"" style="color:#ccc; cursor:pointer;">' + i + '</span>';
// } else {
// console.log(nowDay, 'nowDay-------------')
if (i == nowDay) {
createDoc += `<div class="days anyDay" data-date="${thisYear}-${thisMonth}-${i}" style="cursor:pointer;background-color:#4eccc4;color:#FFFFFF;">${i}<div class="timeList">`;
} else {
createDoc += `<div class="days anyDay" data-date="${thisYear}-${thisMonth}-${i}" style="cursor:pointer;">${i}<div class="timeList">`;
}
let weeknum = getThisWeekDay(thisYear, thisMonth, i)
let weektext = '周' + weekDays[weeknum]
for (let _i = 0; _i < interviewtimelist.length; _i++) {
if (weeknum == interviewtimelist[_i].week) {
createDoc += `<p class='interViewTime' style="width: 100%; border-bottom: 1px solid #ccc;" data-week="${interviewtimelist[_i].week}" data-time="${interviewtimelist[_i].time}" data-amorpm="${interviewtimelist[_i].amorpm}">${weektext} ${interviewtimelist[_i].amorpm} ${interviewtimelist[_i].time}</p>`
}
}
createDoc += '</div></div>'
// }
// }
//星期六换行
if (getThisWeekDay(thisYear, thisMonth, i) == 6) {
createDoc += "</tr>";
}
}
createDoc += '</div></div>';
$('#testID').html(createDoc)
//将创建好的控件字符串添加到div中
//默认选择当前年份
console.log(thisMonth, '当前月份为-------------')
$('#selectYear').val(thisYear)
//默认选择当前月
$('#selectMonth').val(thisMonth)
if (thisMonth == 1) {
$('#selectMonth').val('1')
}
console.log(thisMonth, '当前月份为-------------', $('#selectMonth').val())
}//日历创建结束
// //跳转到当前日
function getThisDay() {
checkYear = nowYear;
checkMonth = nowMonth;
createDate(checkYear, checkMonth);
}
//上一个月
$(document).on('click', '#lastMonth', function (event) {
event.stopPropagation()
lastMonthClick()
})
function lastMonthClick() {
//若当前是1月份，年份减一，月份变为12
if (checkMonth == 1) {
checkYear = checkYear - 1;
checkMonth = 12;
} else {
checkMonth = checkMonth - 1;
}
//创建当前月份日期
createDate(checkYear, checkMonth);
}
//下一月
$(document).on('click', '#nextMonth', function (event) {
event.stopPropagation()
nextMonthClick()
})
function nextMonthClick() {
//若当前是12月份，年份加1，月份变为1
if (checkMonth == 12) {
checkYear = parseInt(checkYear + 1);
checkMonth = 1;
} else {
checkMonth = parseInt(checkMonth + 1);
}
//创建当前月份日期
createDate(checkYear, checkMonth);
}
//年月下拉框-年selectMonth
$(document).on('click', '.selectStyle', function (event) {
event.stopPropagation()
})
$(document).on('click', '.selectStyle option', function (event) {
event.stopPropagation()
})
// 点击年份
$(document).on('change', '#selectYear', function (event) {
event.stopPropagation()
changeYearAndMonth()
})
//年月下拉框-月
$(document).on('change', '#selectMonth', function (event) {
event.stopPropagation()
changeYearAndMonth()
})
function changeYearAndMonth() {
checkYear = $('#selectYear').val()
checkMonth = $('#selectMonth').val();
createDate(checkYear, checkMonth);
}
//判断是否为闰年
function isLeapYear(year) {
var isLeap = false;
if (0 == year % 4 && ((year % 100 != 0) || (year % 400 == 0))) {
//闰年可以被4整除且不能被100整除，或者能整除400
isLeap = true;
}
return isLeap;
}
//获取某月份的总天数
function getThisMonthDay(year, month) {
var thisDayCount = lastDays[month - 1]; //获取当前月份的天数
if ((month == 2) && isLeapYear(year)) {
//若当前月份为2月，并且是闰年，天数加1
thisDayCount++;
}
return thisDayCount;
}
//计算某天是星期几
function getThisWeekDay(year, month, date) {
//将年月日创建Date对象，返回当前星期几
var thisDate = new Date(year, month - 1, date);
return thisDate.getDay();
}
/**
*
* @param {*} curdate 鼠标滑过的日期
* @param {*} today 今天的日期
*/
function compareDate(curdate) {
let today = Date.parse(nowYear + '-' + nowMonth + '-' + nowDay)
let cur = Date.parse(curdate)
if (cur <= today) {
return false
} else {
return true
}
// var cur = curdate.split('-')
// var c = Date.parse(curdate)
}
$(document).on('mouseover', '.anyDay', function (event) {
event.stopPropagation()
console.log($(this).context.dataset.date)
let canclick = compareDate($(this).context.dataset.date) ? true : false
if ($(this).children().children().length <= 0 || !canclick) { // 不可点击的状态
$(this).css({ 'cursor': 'no-drop' })
$(this).siblings().children('.timeList').hide()
return
} else { // 可点击的状态
$(this).children('.timeList').show()
$(this).siblings().children('.timeList').hide()
}
})
$(document).on('click', '.anyDay', function (event) {
event.stopPropagation()
let canclick = compareDate($(this).context.dataset.date) ? true : false
curInterViewDate = $(this).context.dataset.date
if ($(this).children().children().length <= 0 || !canclick) { // 不可点击的状态
$(this).siblings().children('.timeList').hide()
return
} else { // 可点击的状态
$(this).children('.timeList').show()
$(this).siblings().children('.timeList').hide()
}
})
/**
* 点击选择当前时间var curClickStatus = ''
var curInterViewDate = ''
var curInterViewTime = ''
var curAmPm = ''
* 更新页面的显示，以及保存参数后续点击确定的时候，传给后台
*/
$(document).on('click', '.interViewTime', function (event) {
event.stopPropagation()
// curInterViewDate = $(this).context.dataset.
let week = '周' + weekDays[$(this).context.dataset.week]
curInterViewTime = $(this).context.dataset.time
curAmPm = $(this).context.dataset.amorpm
console.log($(this))
let text_input = week + ' ' + curInterViewDate + ' ' + curAmPm + ' ' + curInterViewTime
$('#txt_calendar').val(text_input)
$('#testID').hide()
})
/**
* 点击面试时间的元素。渲染到页面“请选择面试时间” “”
* 隐藏日历并恢复日历最初的值。
*
*/
$(document).on('click', '.anyDay', function (event) {
event.stopPropagation()
if ($(this).children().children().length <= 0) { // 不可点击的状态
$(this).css({ 'cursor': 'no-drop' })
return
} else { // 可点击的状态
$(this).children('.timeList').show()
$(this).siblings().children('.timeList').hide()
}
console.log(this, '点击当前元素----', $(this).children().children().length)
})
// //关闭日期选择框
function hidDate() {
$('#dateOuter').style.display = "none";
}目前可以实现需求了，但还有很多的不足，如果有好的建议，欢迎留言哦~
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