office-ui-fabric-react
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Reusable React components for building experiences for Office 365.
358 lines • 17.9 kB
JavaScript
define(["require", "exports", "../dateValues/DateValues", "../dateValues/TimeConstants", "../../Utilities"], function (require, exports, DateValues_1, TimeConstants_1, Utilities_1) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
/**
* Returns a date offset from the given date by the specified number of days.
* @param {Date} date - The origin date
* @param {number} days - The number of days to offset. 'days' can be negative.
* @return {Date} A new Date object offset from the origin date by the given number of days
*/
function addDays(date, days) {
var result = new Date(date.getTime());
result.setDate(result.getDate() + days);
return result;
}
exports.addDays = addDays;
/**
* Returns a date offset from the given date by the specified number of weeks.
* @param {Date} date - The origin date
* @param {number} weeks - The number of weeks to offset. 'weeks' can be negative.
* @return {Date} A new Date object offset from the origin date by the given number of weeks
*/
function addWeeks(date, weeks) {
return addDays(date, weeks * TimeConstants_1.default.DaysInOneWeek);
}
exports.addWeeks = addWeeks;
/**
* Returns a date offset from the given date by the specified number of months.
* The method tries to preserve the day-of-month; however, if the new month does not have enough days
* to contain the original day-of-month, we'll use the last day of the new month.
* @param {Date} date - The origin date
* @param {number} months - The number of months to offset. 'months' can be negative.
* @return {Date} A new Date object offset from the origin date by the given number of months
*/
function addMonths(date, months) {
var result = new Date(date.getTime());
var newMonth = result.getMonth() + months;
result.setMonth(newMonth);
// We want to maintain the same day-of-month, but that may not be possible if the new month doesn't have enough days.
// Loop until we back up to a day the new month has.
// (Weird modulo math is due to Javascript's treatment of negative numbers in modulo)
if (result.getMonth() !== (newMonth % TimeConstants_1.default.MonthInOneYear + TimeConstants_1.default.MonthInOneYear) % TimeConstants_1.default.MonthInOneYear) {
result = addDays(result, -result.getDate());
}
return result;
}
exports.addMonths = addMonths;
/**
* Returns a date offset from the given date by the specified number of years.
* The method tries to preserve the day-of-month; however, if the new month does not have enough days
* to contain the original day-of-month, we'll use the last day of the new month.
* @param {Date} date - The origin date
* @param {number} years - The number of years to offset. 'years' can be negative.
* @return {Date} A new Date object offset from the origin date by the given number of years
*/
function addYears(date, years) {
var result = new Date(date.getTime());
result.setFullYear(date.getFullYear() + years);
// We want to maintain the same day-of-month, but that may not be possible if the new month doesn't have enough days.
// Loop until we back up to a day the new month has.
// (Weird modulo math is due to Javascript's treatment of negative numbers in modulo)
if (result.getMonth() !== (date.getMonth() % TimeConstants_1.default.MonthInOneYear + TimeConstants_1.default.MonthInOneYear) % TimeConstants_1.default.MonthInOneYear) {
result = addDays(result, -result.getDate());
}
return result;
}
exports.addYears = addYears;
/**
* Returns a date that is the first day of the month of the provided date.
* @param {Date} date - The origin date
* @return {Date} A new Date object with the day set to the first day of the month.
*/
function getMonthStart(date) {
return new Date(date.getFullYear(), date.getMonth(), 1, 0, 0, 0, 0);
}
exports.getMonthStart = getMonthStart;
/**
* Returns a date that is the last day of the month of the provided date.
* @param {Date} date - The origin date
* @return {Date} A new Date object with the day set to the last day of the month.
*/
function getMonthEnd(date) {
return new Date(date.getFullYear(), date.getMonth() + 1, 0, 0, 0, 0, 0);
}
exports.getMonthEnd = getMonthEnd;
/**
* Returns a date that is the first day of the year of the provided date.
* @param {Date} date - The origin date
* @return {Date} A new Date object with the day set to the first day of the year.
*/
function getYearStart(date) {
return new Date(date.getFullYear(), 0, 1, 0, 0, 0, 0);
}
exports.getYearStart = getYearStart;
/**
* Returns a date that is the last day of the year of the provided date.
* @param {Date} date - The origin date
* @return {Date} A new Date object with the day set to the last day of the year.
*/
function getYearEnd(date) {
return new Date(date.getFullYear() + 1, 0, 0, 0, 0, 0, 0);
}
exports.getYearEnd = getYearEnd;
/**
* Returns a date that is a copy of the given date, aside from the month changing to the given month.
* The method tries to preserve the day-of-month; however, if the new month does not have enough days
* to contain the original day-of-month, we'll use the last day of the new month.
* @param {Date} date - The origin date
* @param {number} month - The 0-based index of the month to set on the date.
* @return {Date} A new Date object with the given month set.
*/
function setMonth(date, month) {
return addMonths(date, month - date.getMonth());
}
exports.setMonth = setMonth;
/**
* Compares two dates, and returns true if the two dates (not accounting for time-of-day) are equal.
* @return {boolean} True if the two dates represent the same date (regardless of time-of-day), false otherwise.
*/
function compareDates(date1, date2) {
if (!date1 && !date2) {
return true;
}
else if (!date1 || !date2) {
return false;
}
else {
return (date1.getFullYear() === date2.getFullYear()
&& date1.getMonth() === date2.getMonth()
&& date1.getDate() === date2.getDate());
}
}
exports.compareDates = compareDates;
/**
* Compare the date parts of two dates
* @param {Date} date1 - The first date to compare
* @param {Date} date2 - The second date to compare
* @returns {Number} A negative value if date1 is earlier than date2, 0 if the dates are equal, or a positive value
* if date1 is later than date2.
*/
function compareDatePart(date1, date2) {
return getDatePartHashValue(date1) - getDatePartHashValue(date2);
}
exports.compareDatePart = compareDatePart;
/**
* Gets the date range array including the specified date. The date range array is calculated as the list
* of dates accounting for the specified first day of the week and date range type.
* @param {Date} date - The input date
* @param {DateRangeType} dateRangeType - The desired date range type, i.e., day, week, month, etc.
* @param {DayOfWeek} dayOfWeek - The first day of the week.
* @returns {Date[]} An array of dates representing the date range containing the specified date.
*/
function getDateRangeArray(date, dateRangeType, firstDayOfWeek) {
var datesArray = new Array();
var startDate;
var endDate = null;
switch (dateRangeType) {
case DateValues_1.DateRangeType.Day:
startDate = getDatePart(date);
endDate = addDays(startDate, 1);
break;
case DateValues_1.DateRangeType.Week:
startDate = getStartDateOfWeek(getDatePart(date), firstDayOfWeek);
endDate = addDays(startDate, TimeConstants_1.default.DaysInOneWeek);
break;
case DateValues_1.DateRangeType.Month:
startDate = new Date(date.getFullYear(), date.getMonth(), 1);
endDate = addMonths(startDate, 1);
break;
default:
return Utilities_1.assertNever(dateRangeType);
}
// Populate the dates array with the dates in range
datesArray.push(startDate);
var nextDate = addDays(startDate, 1);
while (!compareDates(nextDate, endDate)) {
datesArray.push(nextDate);
nextDate = addDays(nextDate, 1);
}
return datesArray;
}
exports.getDateRangeArray = getDateRangeArray;
/**
* Checks whether the specified date is in the given date range.
* @param {Date} date - The origin date
* @param {Date[]} dateRange - An array of dates to do the lookup on
* @returns {bool} True if the date matches one of the dates in the specified array, false otherwise.
*/
function isInDateRangeArray(date, dateRange) {
for (var _i = 0, dateRange_1 = dateRange; _i < dateRange_1.length; _i++) {
var dateInRange = dateRange_1[_i];
if (compareDates(date, dateInRange)) {
return true;
}
}
return false;
}
exports.isInDateRangeArray = isInDateRangeArray;
/**
* Returns the week number for a date.
* Week numbers are 1 - 52 (53) in a year
* @param {navigatedDate} Date - A date to find the week number for.
* @param {firstDayOfWeek} DayOfWeek - The first day of the week (0-6, Sunday = 0)
* @param {firstWeekOfYear} FirstWeekOfYear - The first week of the year (1-2)
* @return {weeksArray} The weeks number array for the current month.
*/
function getWeekNumbersInMonth(weeksInMonth, firstDayOfWeek, firstWeekOfYear, navigatedDate) {
var selectedYear = navigatedDate.getFullYear();
var selectedMonth = navigatedDate.getMonth();
var dayOfMonth = 1;
var fistDayOfMonth = new Date(selectedYear, selectedMonth, dayOfMonth);
var endOfFirstWeek = dayOfMonth
+ (firstDayOfWeek + TimeConstants_1.default.DaysInOneWeek - 1)
- adjustWeekDay(firstDayOfWeek, fistDayOfMonth.getDay());
var endOfWeekRange = new Date(selectedYear, selectedMonth, endOfFirstWeek);
dayOfMonth = endOfWeekRange.getDate();
var weeksArray = [];
for (var i = 0; i < weeksInMonth; i++) {
// Get week number for end of week
weeksArray.push(getWeekNumber(endOfWeekRange, firstDayOfWeek, firstWeekOfYear));
dayOfMonth += TimeConstants_1.default.DaysInOneWeek;
endOfWeekRange = new Date(selectedYear, selectedMonth, dayOfMonth);
}
return weeksArray;
}
exports.getWeekNumbersInMonth = getWeekNumbersInMonth;
/**
* Returns the week number for a date.
* Week numbers are 1 - 52 (53) in a year
* @param {Date} date - A date to find the week number for.
* @param {DayOfWeek} firstDayOfWeek - The first day of the week (0-6, Sunday = 0)
* @param {firstWeekOfYear} firstWeekOfYear - The first week of the year (1-2)
* @return {Number} The week's number in the year.
*/
function getWeekNumber(date, firstDayOfWeek, firstWeekOfYear) {
// First four-day week of the year - minumum days count
var fourDayWeek = 4;
switch (firstWeekOfYear) {
case DateValues_1.FirstWeekOfYear.FirstFullWeek:
return getWeekOfYearFullDays(date, firstDayOfWeek, TimeConstants_1.default.DaysInOneWeek);
case DateValues_1.FirstWeekOfYear.FirstFourDayWeek:
return getWeekOfYearFullDays(date, firstDayOfWeek, fourDayWeek);
default:
return getFirstDayWeekOfYear(date, firstDayOfWeek);
}
}
exports.getWeekNumber = getWeekNumber;
/**
* Gets a new date with the time portion zeroed out, i.e., set to midnight
* @param {Date} date - The origin date
* @returns {Date} A new date with the time set to midnight
*/
function getDatePart(date) {
return new Date(date.getFullYear(), date.getMonth(), date.getDate());
}
/**
* Gets the date for the first day of the week based on the given date assuming
* the specified first day of the week.
* @param {Date} date - The date to find the beginning of the week date for.
* @return {Date} A new date object representing the first day of the week containing the input date.
*/
function getStartDateOfWeek(date, firstDayOfWeek) {
var daysOffset = firstDayOfWeek - date.getDay();
if (daysOffset > 0) {
// If first day of week is > date, go 1 week back, to ensure resulting date is in the past.
daysOffset -= TimeConstants_1.default.DaysInOneWeek;
}
return addDays(date, daysOffset);
}
/**
* Helper function to assist in date comparisons
*/
function getDatePartHashValue(date) {
// Generate date hash value created as sum of Date (up to 31 = 5 bits), Month (up to 11 = 4 bits) and Year.
/* tslint:disable:no-bitwise */
return date.getDate() + (date.getMonth() << 5) + (date.getFullYear() << 9);
/* tslint:enable:no-bitwise */
}
/**
* Helper function for getWeekNumber.
* Returns week number for a date
* @param {date} Date - current selected date.
* @param {firstDayOfWeek} DayOfWeek - The first day of week (0-6, Sunday = 0)
* @param {numberOfFullDays} number - week settings.
* @return {Number} The week's number in the year.
*/
function getWeekOfYearFullDays(date, firstDayOfWeek, numberOfFullDays) {
var dayOfYear = getDayOfYear(date) - 1;
var dateWeekDay = date.getDay();
var num = (date.getDay()) - (dayOfYear % TimeConstants_1.default.DaysInOneWeek);
var lastDayOfPrevYear = new Date(date.getFullYear() - 1, DateValues_1.MonthOfYear.December, 31);
var daysInYear = getDayOfYear(lastDayOfPrevYear) - 1;
var adjustedWeekDay = adjustWeekDay(firstDayOfWeek, dateWeekDay);
var num2 = ((firstDayOfWeek - num) + (2 * TimeConstants_1.default.DaysInOneWeek)) % TimeConstants_1.default.DaysInOneWeek;
if ((num2 !== 0) && (num2 >= numberOfFullDays)) {
num2 -= TimeConstants_1.default.DaysInOneWeek;
}
var num3 = dayOfYear - num2;
if (num3 < 0) {
num -= daysInYear % TimeConstants_1.default.DaysInOneWeek;
num2 = ((firstDayOfWeek - num) + (2 * TimeConstants_1.default.DaysInOneWeek)) % TimeConstants_1.default.DaysInOneWeek;
if ((num2 !== 0) && (num2 + 1 >= numberOfFullDays)) {
num2 -= TimeConstants_1.default.DaysInOneWeek;
}
num3 = daysInYear - num2;
}
return Math.floor((num3 / TimeConstants_1.default.DaysInOneWeek) + 1);
}
/**
* Helper function for getWeekNumber.
* Returns week number for a date
* @param {date} Date - current selected date.
* @param {firstDayOfWeek} DayOfWeek - The first day of week (0-6, Sunday = 0)
* @return {Number} The week's number in the year.
*/
function getFirstDayWeekOfYear(date, firstDayOfWeek) {
var num = getDayOfYear(date) - 1;
var num2 = (date.getDay()) - (num % TimeConstants_1.default.DaysInOneWeek);
var num3 = ((num2 - firstDayOfWeek) + 2 * TimeConstants_1.default.DaysInOneWeek) % TimeConstants_1.default.DaysInOneWeek;
return Math.floor(((num + num3) / TimeConstants_1.default.DaysInOneWeek) + 1);
}
/**
* Helper function for getWeekNumber.
* Returns adjusted week day number when firstDayOfWeek is other than Sunday
* For Week Day Number comparison checks
* @param {firstDayOfWeek} DayOfWeek - The first day of week (0-6, Sunday = 0)
* @param {dateWeekDay} DayOfWeek - shifts number forward to 1 week in case passed as true
* @return {DayOfWeek} The day of week adjusted to firstDayOfWeek. E.g. when FirstDyOfWeek is Monday (1), Sunday becomes = 7 (7 > 1).
*/
function adjustWeekDay(firstDayOfWeek, dateWeekDay) {
return (firstDayOfWeek !== DateValues_1.DayOfWeek.Sunday && dateWeekDay < firstDayOfWeek) ? dateWeekDay + TimeConstants_1.default.DaysInOneWeek : dateWeekDay;
}
/**
* Returns the day number for a date in a year
* The number of days since January 1st in the particular year.
* @param {Date} date - A date to find the day number for.
* @return {Number} The day's number in the year.
*/
function getDayOfYear(date) {
var month = date.getMonth();
var year = date.getFullYear();
var daysUntilDate = 0;
for (var i = 0; i < month; i++) {
daysUntilDate += daysInMonth((i + 1), year);
}
daysUntilDate += date.getDate();
return daysUntilDate;
}
/**
* Returns the number of days in the month
* @param {number} month - The month number to target (months 1-12).
* @param {number} year - The year to target.
* @return {Number} The number of days in the month.
*/
function daysInMonth(month, year) {
return new Date(year, month, 0).getDate();
}
});
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