@ng-bootstrap/ng-bootstrap
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Angular powered Bootstrap
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JavaScript
import { NgbDate } from './ngb-date';
import { Injectable } from '@angular/core';
import { isInteger } from '../util/util';
import * as i0 from "@angular/core";
export function fromJSDate(jsDate) {
return new NgbDate(jsDate.getFullYear(), jsDate.getMonth() + 1, jsDate.getDate());
}
export function toJSDate(date) {
const jsDate = new Date(date.year, date.month - 1, date.day, 12);
// this is done avoid 30 -> 1930 conversion
if (!isNaN(jsDate.getTime())) {
jsDate.setFullYear(date.year);
}
return jsDate;
}
export function NGB_DATEPICKER_CALENDAR_FACTORY() {
return new NgbCalendarGregorian();
}
/**
* A service that represents the calendar used by the datepicker.
*
* The default implementation uses the Gregorian calendar. You can inject it in your own
* implementations if necessary to simplify `NgbDate` calculations.
*/
class NgbCalendar {
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.0.6", ngImport: i0, type: NgbCalendar, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }
static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.0.6", ngImport: i0, type: NgbCalendar, providedIn: 'root', useFactory: NGB_DATEPICKER_CALENDAR_FACTORY }); }
}
export { NgbCalendar };
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.0.6", ngImport: i0, type: NgbCalendar, decorators: [{
type: Injectable,
args: [{ providedIn: 'root', useFactory: NGB_DATEPICKER_CALENDAR_FACTORY }]
}] });
class NgbCalendarGregorian extends NgbCalendar {
getDaysPerWeek() {
return 7;
}
getMonths() {
return [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];
}
getWeeksPerMonth() {
return 6;
}
getNext(date, period = 'd', number = 1) {
let jsDate = toJSDate(date);
let checkMonth = true;
let expectedMonth = jsDate.getMonth();
switch (period) {
case 'y':
jsDate.setFullYear(jsDate.getFullYear() + number);
break;
case 'm':
expectedMonth += number;
jsDate.setMonth(expectedMonth);
expectedMonth = expectedMonth % 12;
if (expectedMonth < 0) {
expectedMonth = expectedMonth + 12;
}
break;
case 'd':
jsDate.setDate(jsDate.getDate() + number);
checkMonth = false;
break;
default:
return date;
}
if (checkMonth && jsDate.getMonth() !== expectedMonth) {
// this means the destination month has less days than the initial month
// let's go back to the end of the previous month:
jsDate.setDate(0);
}
return fromJSDate(jsDate);
}
getPrev(date, period = 'd', number = 1) {
return this.getNext(date, period, -number);
}
getWeekday(date) {
let jsDate = toJSDate(date);
let day = jsDate.getDay();
// in JS Date Sun=0, in ISO 8601 Sun=7
return day === 0 ? 7 : day;
}
getWeekNumber(week, firstDayOfWeek) {
// in JS Date Sun=0, in ISO 8601 Sun=7
if (firstDayOfWeek === 7) {
firstDayOfWeek = 0;
}
const thursdayIndex = (4 + 7 - firstDayOfWeek) % 7;
let date = week[thursdayIndex];
const jsDate = toJSDate(date);
jsDate.setDate(jsDate.getDate() + 4 - (jsDate.getDay() || 7)); // Thursday
const time = jsDate.getTime();
jsDate.setMonth(0); // Compare with Jan 1
jsDate.setDate(1);
return Math.floor(Math.round((time - jsDate.getTime()) / 86400000) / 7) + 1;
}
getToday() {
return fromJSDate(new Date());
}
isValid(date) {
if (!date || !isInteger(date.year) || !isInteger(date.month) || !isInteger(date.day)) {
return false;
}
// year 0 doesn't exist in Gregorian calendar
if (date.year === 0) {
return false;
}
const jsDate = toJSDate(date);
return (!isNaN(jsDate.getTime()) &&
jsDate.getFullYear() === date.year &&
jsDate.getMonth() + 1 === date.month &&
jsDate.getDate() === date.day);
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.0.6", ngImport: i0, type: NgbCalendarGregorian, deps: null, target: i0.ɵɵFactoryTarget.Injectable }); }
static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.0.6", ngImport: i0, type: NgbCalendarGregorian }); }
}
export { NgbCalendarGregorian };
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.0.6", ngImport: i0, type: NgbCalendarGregorian, decorators: [{
type: Injectable
}] });
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You can inject it in your own\n * implementations if necessary to simplify `NgbDate` calculations.\n */\n@Injectable({ providedIn: 'root', useFactory: NGB_DATEPICKER_CALENDAR_FACTORY })\nexport abstract class NgbCalendar {\n\t/**\n\t * Returns the number of days per week.\n\t */\n\tabstract getDaysPerWeek(): number;\n\n\t/**\n\t * Returns an array of months per year.\n\t *\n\t * With default calendar we use ISO 8601 and return [1, 2, ..., 12];\n\t */\n\tabstract getMonths(year?: number): number[];\n\n\t/**\n\t * Returns the number of weeks per month.\n\t */\n\tabstract getWeeksPerMonth(): number;\n\n\t/**\n\t * Returns the weekday number for a given day.\n\t *\n\t * With the default calendar we use ISO 8601: 'weekday' is 1=Mon ... 7=Sun\n\t */\n\tabstract getWeekday(date: NgbDate): number;\n\n\t/**\n\t * Adds a number of years, months or days to a given date.\n\t *\n\t * * `period` can be `y`, `m` or `d` and defaults to day.\n\t * * `number` defaults to 1.\n\t *\n\t * Always returns a new date.\n\t */\n\tabstract getNext(date: NgbDate, period?: NgbPeriod, number?: number): NgbDate;\n\n\t/**\n\t * Subtracts a number of years, months or days from a given date.\n\t *\n\t * * `period` can be `y`, `m` or `d` and defaults to day.\n\t * * `number` defaults to 1.\n\t *\n\t * Always returns a new date.\n\t */\n\tabstract getPrev(date: NgbDate, period?: NgbPeriod, number?: number): NgbDate;\n\n\t/**\n\t * Returns the week number for a given week.\n\t */\n\tabstract getWeekNumber(week: readonly NgbDate[], firstDayOfWeek: number): number;\n\n\t/**\n\t * Returns the today's date.\n\t */\n\tabstract getToday(): NgbDate;\n\n\t/**\n\t * Checks if a date is valid in the current calendar.\n\t */\n\tabstract isValid(date?: NgbDate | null): boolean;\n}\n\n@Injectable()\nexport class NgbCalendarGregorian extends NgbCalendar {\n\tgetDaysPerWeek() {\n\t\treturn 7;\n\t}\n\n\tgetMonths() {\n\t\treturn [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];\n\t}\n\n\tgetWeeksPerMonth() {\n\t\treturn 6;\n\t}\n\n\tgetNext(date: NgbDate, period: NgbPeriod = 'd', number = 1) {\n\t\tlet jsDate = toJSDate(date);\n\t\tlet checkMonth = true;\n\t\tlet expectedMonth = jsDate.getMonth();\n\n\t\tswitch (period) {\n\t\t\tcase 'y':\n\t\t\t\tjsDate.setFullYear(jsDate.getFullYear() + number);\n\t\t\t\tbreak;\n\t\t\tcase 'm':\n\t\t\t\texpectedMonth += number;\n\t\t\t\tjsDate.setMonth(expectedMonth);\n\t\t\t\texpectedMonth = expectedMonth % 12;\n\t\t\t\tif (expectedMonth < 0) {\n\t\t\t\t\texpectedMonth = expectedMonth + 12;\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase 'd':\n\t\t\t\tjsDate.setDate(jsDate.getDate() + number);\n\t\t\t\tcheckMonth = false;\n\t\t\t\tbreak;\n\t\t\tdefault:\n\t\t\t\treturn date;\n\t\t}\n\n\t\tif (checkMonth && jsDate.getMonth() !== expectedMonth) {\n\t\t\t// this means the destination month has less days than the initial month\n\t\t\t// let's go back to the end of the previous month:\n\t\t\tjsDate.setDate(0);\n\t\t}\n\n\t\treturn fromJSDate(jsDate);\n\t}\n\n\tgetPrev(date: NgbDate, period: NgbPeriod = 'd', number = 1) {\n\t\treturn this.getNext(date, period, -number);\n\t}\n\n\tgetWeekday(date: NgbDate) {\n\t\tlet jsDate = toJSDate(date);\n\t\tlet day = jsDate.getDay();\n\t\t// in JS Date Sun=0, in ISO 8601 Sun=7\n\t\treturn day === 0 ? 7 : day;\n\t}\n\n\tgetWeekNumber(week: readonly NgbDate[], firstDayOfWeek: number) {\n\t\t// in JS Date Sun=0, in ISO 8601 Sun=7\n\t\tif (firstDayOfWeek === 7) {\n\t\t\tfirstDayOfWeek = 0;\n\t\t}\n\n\t\tconst thursdayIndex = (4 + 7 - firstDayOfWeek) % 7;\n\t\tlet date = week[thursdayIndex];\n\n\t\tconst jsDate = toJSDate(date);\n\t\tjsDate.setDate(jsDate.getDate() + 4 - (jsDate.getDay() || 7)); // Thursday\n\t\tconst time = jsDate.getTime();\n\t\tjsDate.setMonth(0); // Compare with Jan 1\n\t\tjsDate.setDate(1);\n\t\treturn Math.floor(Math.round((time - jsDate.getTime()) / 86400000) / 7) + 1;\n\t}\n\n\tgetToday(): NgbDate {\n\t\treturn fromJSDate(new Date());\n\t}\n\n\tisValid(date?: NgbDate | null): boolean {\n\t\tif (!date || !isInteger(date.year) || !isInteger(date.month) || !isInteger(date.day)) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// year 0 doesn't exist in Gregorian calendar\n\t\tif (date.year === 0) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst jsDate = toJSDate(date);\n\n\t\treturn (\n\t\t\t!isNaN(jsDate.getTime()) &&\n\t\t\tjsDate.getFullYear() === date.year &&\n\t\t\tjsDate.getMonth() + 1 === date.month &&\n\t\t\tjsDate.getDate() === date.day\n\t\t);\n\t}\n}\n"]}