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Time.js
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203 lines (180 loc) · 5.07 KB
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/**
* 传入参数，生成相应对象。
* @param date js Date对象或者yyyy-MM-dd hh:mm:ss,
*/
(function(global) {
'use strict';
var Calendar = function(date) {
//设置正确的日期
this.d = new Date(0);
if(date instanceof Date) {
this.d = date;
} else if (typeof date === 'string') {
var ds = date.split(' ');
ds[1] = ds[1] || '00:00:00';
var dates = ds[0].split('-'),
times = ds[1].split(':');
this.d.setFullYear(dates[0], dates[1] - 1, dates[2]);
this.d.setHours(times[0] || '00');
this.d.setMinutes(times[1] || '00');
this.d.setSeconds(times[2] || '00');
} else if (date instanceof Calendar){
return date;
}
this.data = this.fillData(this.d);
return this;
}
global.Calendar = Calendar;
var cp = Calendar.prototype;
/**
* 补全字段到两位
*/
cp.complete = function(time, completion) {
time = parseInt(time);
if (completion) {
time = (time < 10) ? ('0' + time) : ('' + time);
}
return time;
}
/**
* 根据时间补充其他字段
*/
cp.fillData = function(d) {
d = d || this.d;
var data = {
year : d.getFullYear(),
month : d.getMonth() + 1,
date : d.getDate(),
hour : d.getHours(),
minute : d.getMinutes(),
second : d.getSeconds(),
day : '星期'
};
var dayInfo = ['日','一','二','三','四','五','六'];
data['day'] += dayInfo[d.getDay()];
return data;
}
/**
* 格式化输出
*/
cp.format = function(format) {
format = format || '';
return format.replace(/y+/g, this.data['year'])
.replace(/M+/g, this.complete(this.data['month'], true))
.replace(/d+/g, this.complete(this.data['date'], true))
.replace(/h+/g, this.complete(this.data['hour'], true))
.replace(/m+/g, this.complete(this.data['minute'], true))
.replace(/s+/g, this.complete(this.data['second'], true))
.replace(/D+/g, this.data['day']);
}
/**
* 为指定的日历字段添加或减去指定的时间量
*/
cp.add = function(field, amount) {
if(!field || !amount) {
return;
}
var newVal = this.data[field] + amount;
switch(field) {
case 'year': this.d.setFullYear(newVal); break;
case 'month':
this.d.setDate(1);
this.d.setMonth(newVal);
this.d.setDate(0);
if(this.d.getDate() > this.data['date']) {
this.d.setDate(this.data['date']);
}
break;
case 'date': this.d.setDate(newVal); break;
case 'hour': this.d.setHours(newVal); break;
case 'minute': this.d.setMinutes(newVal); break;
case 'second': this.d.setSeconds(newVal); break;
}
this.data = this.fillData(this.d);
return this;
}
/**
* 比较两个时间
*/
cp.compareTo = function(anotherCalendar) {
anotherCalendar = new Calendar(anotherCalendar);
var anotherTime = anotherCalendar.get('d', true).getTime();
return this.get('d').getTime() - anotherTime;
}
/**
* 获得某一字段的数值, 默认不进行格式化
*/
cp.get = function(field, completion) {
var result = undefined;
if(field === 'd') {
return this.d;
} else if(field) {
result = this.data[field];
}
if(result !== undefined && result !== null && field !== 'day') {
result = this.complete(result, completion);
}
return result;
}
/**
* 当前时间的下个月
* keepDay： true 日期不变，
* false 日期变为月末
*/
cp.nextMonth = function(keepDay) {
this.d.setDate(1);
this.d.setMonth(this.data['month'] + 1);
this.d.setDate(0);
if(keepDay && this.d.getDate() > this.data['date']) {
this.d.setDate(this.data['date']);
}
this.data = this.fillData(this.d);
return this;
}
/**
* 当前时间的上个月
*/
cp.lastMonth = function(keepDay) {
this.d.setDate(0);
if(keepDay && this.d.getDate() > this.data['date']) {
this.d.setDate(this.data['date']);
}
this.data = this.fillData(this.d);
return this;
}
/**
* 当前时间的明天
*/
cp.tomorrow = function() {
this.d.setDate(this.data['date'] + 1);
this.data = this.fillData(this.d);
return this;
}
/**
* 当前时间的昨天
*/
cp.yesterday = function() {
this.d.setDate(this.data['date'] - 1);
this.data = this.fillData(this.d);
return this;
}
/**
* 参数月份中的天数
*/
Calendar.daysInMonth = function(year, month) {
year = parseInt(year);
month = parseInt(month);
var d = new Date();
d.setFullYear(year);
d.setDate(1);
d.setMonth(month);
d.setDate(0);
return d.getDate();
}
/**
* 获得当前时间的日历
*/
Calendar.now = function() {
return new Calendar(new Date());
}
})(window || {});