element-ui
Version:
A Component Library for Vue.js.
293 lines (245 loc) • 9.19 kB
JavaScript
import fecha from 'element-ui/src/utils/date';
import { t } from 'element-ui/src/locale';
const weeks = ['sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat'];
const months = ['jan', 'feb', 'mar', 'apr', 'may', 'jun', 'jul', 'aug', 'sep', 'oct', 'nov', 'dec'];
const newArray = function(start, end) {
let result = [];
for (let i = start; i <= end; i++) {
result.push(i);
}
return result;
};
export const getI18nSettings = () => {
return {
dayNamesShort: weeks.map(week => t(`el.datepicker.weeks.${ week }`)),
dayNames: weeks.map(week => t(`el.datepicker.weeks.${ week }`)),
monthNamesShort: months.map(month => t(`el.datepicker.months.${ month }`)),
monthNames: months.map((month, index) => t(`el.datepicker.month${ index + 1 }`)),
amPm: ['am', 'pm']
};
};
export const toDate = function(date) {
return isDate(date) ? new Date(date) : null;
};
export const isDate = function(date) {
if (date === null || date === undefined) return false;
if (isNaN(new Date(date).getTime())) return false;
if (Array.isArray(date)) return false; // deal with `new Date([ new Date() ]) -> new Date()`
return true;
};
export const isDateObject = function(val) {
return val instanceof Date;
};
export const formatDate = function(date, format) {
date = toDate(date);
if (!date) return '';
return fecha.format(date, format || 'yyyy-MM-dd', getI18nSettings());
};
export const parseDate = function(string, format) {
return fecha.parse(string, format || 'yyyy-MM-dd', getI18nSettings());
};
export const getDayCountOfMonth = function(year, month) {
if (month === 3 || month === 5 || month === 8 || month === 10) {
return 30;
}
if (month === 1) {
if (year % 4 === 0 && year % 100 !== 0 || year % 400 === 0) {
return 29;
} else {
return 28;
}
}
return 31;
};
export const getDayCountOfYear = function(year) {
const isLeapYear = year % 400 === 0 || (year % 100 !== 0 && year % 4 === 0);
return isLeapYear ? 366 : 365;
};
export const getFirstDayOfMonth = function(date) {
const temp = new Date(date.getTime());
temp.setDate(1);
return temp.getDay();
};
// see: https://stackoverflow.com/questions/3674539/incrementing-a-date-in-javascript
// {prev, next} Date should work for Daylight Saving Time
// Adding 24 * 60 * 60 * 1000 does not work in the above scenario
export const prevDate = function(date, amount = 1) {
return new Date(date.getFullYear(), date.getMonth(), date.getDate() - amount);
};
export const nextDate = function(date, amount = 1) {
return new Date(date.getFullYear(), date.getMonth(), date.getDate() + amount);
};
export const getStartDateOfMonth = function(year, month) {
const result = new Date(year, month, 1);
const day = result.getDay();
if (day === 0) {
return prevDate(result, 7);
} else {
return prevDate(result, day);
}
};
export const getWeekNumber = function(src) {
if (!isDate(src)) return null;
const date = new Date(src.getTime());
date.setHours(0, 0, 0, 0);
// Thursday in current week decides the year.
date.setDate(date.getDate() + 3 - (date.getDay() + 6) % 7);
// January 4 is always in week 1.
const week1 = new Date(date.getFullYear(), 0, 4);
// Adjust to Thursday in week 1 and count number of weeks from date to week 1.
// Rounding should be fine for Daylight Saving Time. Its shift should never be more than 12 hours.
return 1 + Math.round(((date.getTime() - week1.getTime()) / 86400000 - 3 + (week1.getDay() + 6) % 7) / 7);
};
export const getRangeHours = function(ranges) {
const hours = [];
let disabledHours = [];
(ranges || []).forEach(range => {
const value = range.map(date => date.getHours());
disabledHours = disabledHours.concat(newArray(value[0], value[1]));
});
if (disabledHours.length) {
for (let i = 0; i < 24; i++) {
hours[i] = disabledHours.indexOf(i) === -1;
}
} else {
for (let i = 0; i < 24; i++) {
hours[i] = false;
}
}
return hours;
};
export const getPrevMonthLastDays = (date, amount) => {
if (amount <= 0) return [];
const temp = new Date(date.getTime());
temp.setDate(0);
const lastDay = temp.getDate();
return range(amount).map((_, index) => lastDay - (amount - index - 1));
};
export const getMonthDays = (date) => {
const temp = new Date(date.getFullYear(), date.getMonth() + 1, 0);
const days = temp.getDate();
return range(days).map((_, index) => index + 1);
};
function setRangeData(arr, start, end, value) {
for (let i = start; i < end; i++) {
arr[i] = value;
}
}
export const getRangeMinutes = function(ranges, hour) {
const minutes = new Array(60);
if (ranges.length > 0) {
ranges.forEach(range => {
const start = range[0];
const end = range[1];
const startHour = start.getHours();
const startMinute = start.getMinutes();
const endHour = end.getHours();
const endMinute = end.getMinutes();
if (startHour === hour && endHour !== hour) {
setRangeData(minutes, startMinute, 60, true);
} else if (startHour === hour && endHour === hour) {
setRangeData(minutes, startMinute, endMinute + 1, true);
} else if (startHour !== hour && endHour === hour) {
setRangeData(minutes, 0, endMinute + 1, true);
} else if (startHour < hour && endHour > hour) {
setRangeData(minutes, 0, 60, true);
}
});
} else {
setRangeData(minutes, 0, 60, true);
}
return minutes;
};
export const range = function(n) {
// see https://stackoverflow.com/questions/3746725/create-a-javascript-array-containing-1-n
return Array.apply(null, {length: n}).map((_, n) => n);
};
export const modifyDate = function(date, y, m, d) {
return new Date(y, m, d, date.getHours(), date.getMinutes(), date.getSeconds(), date.getMilliseconds());
};
export const modifyTime = function(date, h, m, s) {
return new Date(date.getFullYear(), date.getMonth(), date.getDate(), h, m, s, date.getMilliseconds());
};
export const modifyWithTimeString = (date, time) => {
if (date == null || !time) {
return date;
}
time = parseDate(time, 'HH:mm:ss');
return modifyTime(date, time.getHours(), time.getMinutes(), time.getSeconds());
};
export const clearTime = function(date) {
return new Date(date.getFullYear(), date.getMonth(), date.getDate());
};
export const clearMilliseconds = function(date) {
return new Date(date.getFullYear(), date.getMonth(), date.getDate(), date.getHours(), date.getMinutes(), date.getSeconds(), 0);
};
export const limitTimeRange = function(date, ranges, format = 'HH:mm:ss') {
// TODO: refactory a more elegant solution
if (ranges.length === 0) return date;
const normalizeDate = date => fecha.parse(fecha.format(date, format), format);
const ndate = normalizeDate(date);
const nranges = ranges.map(range => range.map(normalizeDate));
if (nranges.some(nrange => ndate >= nrange[0] && ndate <= nrange[1])) return date;
let minDate = nranges[0][0];
let maxDate = nranges[0][0];
nranges.forEach(nrange => {
minDate = new Date(Math.min(nrange[0], minDate));
maxDate = new Date(Math.max(nrange[1], minDate));
});
const ret = ndate < minDate ? minDate : maxDate;
// preserve Year/Month/Date
return modifyDate(
ret,
date.getFullYear(),
date.getMonth(),
date.getDate()
);
};
export const timeWithinRange = function(date, selectableRange, format) {
const limitedDate = limitTimeRange(date, selectableRange, format);
return limitedDate.getTime() === date.getTime();
};
export const changeYearMonthAndClampDate = function(date, year, month) {
// clamp date to the number of days in `year`, `month`
// eg: (2010-1-31, 2010, 2) => 2010-2-28
const monthDate = Math.min(date.getDate(), getDayCountOfMonth(year, month));
return modifyDate(date, year, month, monthDate);
};
export const prevMonth = function(date) {
const year = date.getFullYear();
const month = date.getMonth();
return month === 0
? changeYearMonthAndClampDate(date, year - 1, 11)
: changeYearMonthAndClampDate(date, year, month - 1);
};
export const nextMonth = function(date) {
const year = date.getFullYear();
const month = date.getMonth();
return month === 11
? changeYearMonthAndClampDate(date, year + 1, 0)
: changeYearMonthAndClampDate(date, year, month + 1);
};
export const prevYear = function(date, amount = 1) {
const year = date.getFullYear();
const month = date.getMonth();
return changeYearMonthAndClampDate(date, year - amount, month);
};
export const nextYear = function(date, amount = 1) {
const year = date.getFullYear();
const month = date.getMonth();
return changeYearMonthAndClampDate(date, year + amount, month);
};
export const extractDateFormat = function(format) {
return format
.replace(/\W?m{1,2}|\W?ZZ/g, '')
.replace(/\W?h{1,2}|\W?s{1,3}|\W?a/gi, '')
.trim();
};
export const extractTimeFormat = function(format) {
return format
.replace(/\W?D{1,2}|\W?Do|\W?d{1,4}|\W?M{1,4}|\W?y{2,4}/g, '')
.trim();
};
export const validateRangeInOneMonth = function(start, end) {
return (start.getMonth() === end.getMonth()) && (start.getFullYear() === end.getFullYear());
};