react-widgets/lib/util/dates.js

An à la carte set of polished, extensible, and accessible inputs built for React

'use strict';

var babelHelpers = require('./babelHelpers.js');

exports.__esModule = true;

var _dateArithmetic = require('date-arithmetic');

var _dateArithmetic2 = babelHelpers.interopRequireDefault(_dateArithmetic);

var _constants = require('./constants');

var _constants2 = babelHelpers.interopRequireDefault(_constants);

var _localizers = require('./localizers');

var directions = _constants2['default'].directions;
var calendarViewUnits = _constants2['default'].calendarViewUnits;

var dates = babelHelpers._extends(_dateArithmetic2['default'], {

  parse: function parse(date, format, culture) {
    return _localizers.date.parse(date, format, culture);
  },

  format: function format(date, _format, culture) {
    return _localizers.date.format(date, _format, culture);
  },

  monthsInYear: function monthsInYear(year) {
    var months = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11],
        date = new Date(year, 0, 1);

    return months.map(function (i) {
      return dates.month(date, i);
    });
  },

  firstVisibleDay: function firstVisibleDay(date, culture) {
    var firstOfMonth = dates.startOf(date, 'month');
    return dates.startOf(firstOfMonth, 'week', _localizers.date.startOfWeek(culture));
  },

  lastVisibleDay: function lastVisibleDay(date, culture) {
    var endOfMonth = dates.endOf(date, 'month');

    return dates.endOf(endOfMonth, 'week', _localizers.date.startOfWeek(culture));
  },

  visibleDays: function visibleDays(date, culture) {
    var current = dates.firstVisibleDay(date, culture),
        last = dates.lastVisibleDay(date, culture),
        days = [];

    while (dates.lte(current, last, 'day')) {
      days.push(current);
      current = dates.add(current, 1, 'day');
    }

    return days;
  },

  move: function move(date, min, max, unit, direction) {
    var isMonth = unit === 'month',
        isUpOrDown = direction === directions.UP || direction === directions.DOWN,
        rangeUnit = calendarViewUnits[unit],
        addUnit = isMonth && isUpOrDown ? 'week' : calendarViewUnits[unit],
        amount = isMonth || !isUpOrDown ? 1 : 4,
        newDate;

    if (direction === directions.UP || direction === directions.LEFT) amount *= -1;

    newDate = dates.add(date, amount, addUnit);

    return dates.inRange(newDate, min, max, rangeUnit) ? newDate : date;
  },

  merge: function merge(date, time) {
    if (time == null && date == null) return null;

    if (time == null) time = new Date();
    if (date == null) date = new Date();

    date = dates.startOf(date, 'day');
    date = dates.hours(date, dates.hours(time));
    date = dates.minutes(date, dates.minutes(time));
    date = dates.seconds(date, dates.seconds(time));
    return dates.milliseconds(date, dates.milliseconds(time));
  },

  sameMonth: function sameMonth(dateA, dateB) {
    return dates.eq(dateA, dateB, 'month');
  },

  today: function today() {
    return this.startOf(new Date(), 'day');
  },

  yesterday: function yesterday() {
    return this.add(this.startOf(new Date(), 'day'), -1, 'day');
  },

  tomorrow: function tomorrow() {
    return this.add(this.startOf(new Date(), 'day'), 1, 'day');
  }
});

exports['default'] = dates;
module.exports = exports['default'];