@ng-bootstrap/ng-bootstrap
Version:
Angular powered Bootstrap
103 lines • 15.7 kB
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.
*/
export class NgbCalendar {
}
NgbCalendar.ɵprov = i0.ɵɵdefineInjectable({ factory: NGB_DATEPICKER_CALENDAR_FACTORY, token: NgbCalendar, providedIn: "root" });
NgbCalendar.decorators = [
{ type: Injectable, args: [{ providedIn: 'root', useFactory: NGB_DATEPICKER_CALENDAR_FACTORY },] }
];
export 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;
}
}
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  /**\n   * Returns the number of days per week.\n   */\n  abstract getDaysPerWeek(): number;\n\n  /**\n   * Returns an array of months per year.\n   *\n   * With default calendar we use ISO 8601 and return [1, 2, ..., 12];\n   */\n  abstract getMonths(year?: number): number[];\n\n  /**\n   * Returns the number of weeks per month.\n   */\n  abstract getWeeksPerMonth(): number;\n\n  /**\n   * Returns the weekday number for a given day.\n   *\n   * With the default calendar we use ISO 8601: 'weekday' is 1=Mon ... 7=Sun\n   */\n  abstract getWeekday(date: NgbDate): number;\n\n  /**\n   * Adds a number of years, months or days to a given date.\n   *\n   * * `period` can be `y`, `m` or `d` and defaults to day.\n   * * `number` defaults to 1.\n   *\n   * Always returns a new date.\n   */\n  abstract getNext(date: NgbDate, period?: NgbPeriod, number?: number): NgbDate;\n\n  /**\n   * Subtracts a number of years, months or days from a given date.\n   *\n   * * `period` can be `y`, `m` or `d` and defaults to day.\n   * * `number` defaults to 1.\n   *\n   * Always returns a new date.\n   */\n  abstract getPrev(date: NgbDate, period?: NgbPeriod, number?: number): NgbDate;\n\n  /**\n   * Returns the week number for a given week.\n   */\n  abstract getWeekNumber(week: readonly NgbDate[], firstDayOfWeek: number): number;\n\n  /**\n   * Returns the today's date.\n   */\n  abstract getToday(): NgbDate;\n\n  /**\n   * Checks if a date is valid in the current calendar.\n   */\n  abstract isValid(date?: NgbDate | null): boolean;\n}\n\n@Injectable()\nexport class NgbCalendarGregorian extends NgbCalendar {\n  getDaysPerWeek() { return 7; }\n\n  getMonths() { return [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]; }\n\n  getWeeksPerMonth() { return 6; }\n\n  getNext(date: NgbDate, period: NgbPeriod = 'd', number = 1) {\n    let jsDate = toJSDate(date);\n    let checkMonth = true;\n    let expectedMonth = jsDate.getMonth();\n\n    switch (period) {\n      case 'y':\n        jsDate.setFullYear(jsDate.getFullYear() + number);\n        break;\n      case 'm':\n        expectedMonth += number;\n        jsDate.setMonth(expectedMonth);\n        expectedMonth = expectedMonth % 12;\n        if (expectedMonth < 0) {\n          expectedMonth = expectedMonth + 12;\n        }\n        break;\n      case 'd':\n        jsDate.setDate(jsDate.getDate() + number);\n        checkMonth = false;\n        break;\n      default:\n        return date;\n    }\n\n    if (checkMonth && jsDate.getMonth() !== expectedMonth) {\n      // this means the destination month has less days than the initial month\n      // let's go back to the end of the previous month:\n      jsDate.setDate(0);\n    }\n\n    return fromJSDate(jsDate);\n  }\n\n  getPrev(date: NgbDate, period: NgbPeriod = 'd', number = 1) { return this.getNext(date, period, -number); }\n\n  getWeekday(date: NgbDate) {\n    let jsDate = toJSDate(date);\n    let day = jsDate.getDay();\n    // in JS Date Sun=0, in ISO 8601 Sun=7\n    return day === 0 ? 7 : day;\n  }\n\n  getWeekNumber(week: readonly NgbDate[], firstDayOfWeek: number) {\n    // in JS Date Sun=0, in ISO 8601 Sun=7\n    if (firstDayOfWeek === 7) {\n      firstDayOfWeek = 0;\n    }\n\n    const thursdayIndex = (4 + 7 - firstDayOfWeek) % 7;\n    let date = week[thursdayIndex];\n\n    const jsDate = toJSDate(date);\n    jsDate.setDate(jsDate.getDate() + 4 - (jsDate.getDay() || 7));  // Thursday\n    const time = jsDate.getTime();\n    jsDate.setMonth(0);  // Compare with Jan 1\n    jsDate.setDate(1);\n    return Math.floor(Math.round((time - jsDate.getTime()) / 86400000) / 7) + 1;\n  }\n\n  getToday(): NgbDate { return fromJSDate(new Date()); }\n\n  isValid(date?: NgbDate | null): boolean {\n    if (!date || !isInteger(date.year) || !isInteger(date.month) || !isInteger(date.day)) {\n      return false;\n    }\n\n    // year 0 doesn't exist in Gregorian calendar\n    if (date.year === 0) {\n      return false;\n    }\n\n    const jsDate = toJSDate(date);\n\n    return !isNaN(jsDate.getTime()) && jsDate.getFullYear() === date.year && jsDate.getMonth() + 1 === date.month &&\n        jsDate.getDate() === date.day;\n  }\n}\n"]}