feat(datepicker): add hebrew i18n

Closes #2606

src/datepicker/datepicker.module.ts

@@ -15,6 +15,7 @@ export {NgbCalendarIslamicCivil} from './hijri/ngb-calendar-islamic-civil';
 export {NgbCalendarIslamicUmalqura} from './hijri/ngb-calendar-islamic-umalqura';
 export {NgbCalendarPersian} from './jalali/ngb-calendar-persian';
 export {NgbCalendarHebrew} from './hebrew/ngb-calendar-hebrew';
+export {NgbDatepickerI18nHebrew} from './hebrew/datepicker-i18n-hebrew';
 export {NgbDatepickerMonthView} from './datepicker-month-view';
 export {NgbDatepickerDayView} from './datepicker-day-view';
 export {NgbDatepickerNavigation} from './datepicker-navigation';

src/datepicker/hebrew/datepicker-i18n-hebrew.spec.ts

@@ -0,0 +1,76 @@
+import {TestBed} from '@angular/core/testing';
+import {NgbDate} from '../ngb-date';
+import {NgbDatepickerI18nHebrew} from './datepicker-i18n-hebrew';
+
+describe('datepicker-i18n-hebrew', () => {
+
+  let i18n: NgbDatepickerI18nHebrew;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({providers: [NgbDatepickerI18nHebrew]});
+    i18n = TestBed.get(NgbDatepickerI18nHebrew);
+  });
+
+  it('should return abbreviated month name', () => {
+    expect(i18n.getMonthShortName(0, 5778)).toBe(undefined);
+    expect(i18n.getMonthShortName(1, 5778)).toBe('תשרי');
+    expect(i18n.getMonthShortName(6, 5778)).toBe('אדר');
+    expect(i18n.getMonthShortName(7, 5778)).toBe('ניסן');
+    expect(i18n.getMonthShortName(12, 5778)).toBe('אלול');
+    expect(i18n.getMonthShortName(13, 5778)).toBe(undefined);
+  });
+
+  it('should return abbreviated month name (leap year)', () => {
+    expect(i18n.getMonthShortName(0, 5779)).toBe(undefined);
+    expect(i18n.getMonthShortName(1, 5779)).toBe('תשרי');
+    expect(i18n.getMonthShortName(6, 5779)).toBe('אדר א׳');
+    expect(i18n.getMonthShortName(7, 5779)).toBe('אדר ב׳');
+    expect(i18n.getMonthShortName(12, 5779)).toBe('אב');
+    expect(i18n.getMonthShortName(13, 5779)).toBe('אלול');
+    expect(i18n.getMonthShortName(14, 5779)).toBe(undefined);
+  });
+
+  it('should return wide month name', () => {
+    expect(i18n.getMonthFullName(0, 5778)).toBe(undefined);
+    expect(i18n.getMonthFullName(1, 5778)).toBe('תשרי');
+    expect(i18n.getMonthFullName(6, 5778)).toBe('אדר');
+    expect(i18n.getMonthFullName(7, 5778)).toBe('ניסן');
+    expect(i18n.getMonthFullName(12, 5778)).toBe('אלול');
+    expect(i18n.getMonthFullName(13, 5778)).toBe(undefined);
+  });
+
+  it('should return wide month name (leap year)', () => {
+    expect(i18n.getMonthFullName(0, 5779)).toBe(undefined);
+    expect(i18n.getMonthFullName(1, 5779)).toBe('תשרי');
+    expect(i18n.getMonthFullName(6, 5779)).toBe('אדר א׳');
+    expect(i18n.getMonthFullName(7, 5779)).toBe('אדר ב׳');
+    expect(i18n.getMonthFullName(12, 5779)).toBe('אב');
+    expect(i18n.getMonthFullName(13, 5779)).toBe('אלול');
+    expect(i18n.getMonthFullName(14, 5779)).toBe(undefined);
+  });
+
+  it('should return weekday name', () => {
+    expect(i18n.getWeekdayShortName(0)).toBe(undefined);
+    expect(i18n.getWeekdayShortName(1)).toBe('ב׳');
+    expect(i18n.getWeekdayShortName(7)).toBe('א׳');
+    expect(i18n.getWeekdayShortName(8)).toBe(undefined);
+  });
+
+  it('should generate aria label for a date',
+     () => { expect(i18n.getDayAriaLabel(new NgbDate(5778, 10, 8))).toBe('ח׳ תמוז תשע״ח'); });
+
+  it('should generate week number numerals', () => {
+    expect(i18n.getWeekNumerals(1)).toBe('א׳');
+    expect(i18n.getWeekNumerals(50)).toBe('נ׳');
+  });
+
+  it('should generate day numerals', () => {
+    expect(i18n.getDayNumerals(new NgbDate(5778, 10, 1))).toBe('א׳');
+    expect(i18n.getDayNumerals(new NgbDate(5778, 10, 29))).toBe('כ״ט');
+  });
+
+  it('should generate year numerals', () => {
+    expect(i18n.getYearNumerals(0)).toBe('');
+    expect(i18n.getYearNumerals(5778)).toBe('תשע״ח');
+  });
+});

src/datepicker/hebrew/datepicker-i18n-hebrew.ts

@@ -0,0 +1,31 @@
+import {NgbDatepickerI18n} from '../datepicker-i18n';
+import {NgbDateStruct} from '../../index';
+import {hebrewNumerals, isHebrewLeapYear} from './hebrew';
+import {Injectable} from '@angular/core';
+
+
+const WEEKDAYS = ['ב׳', 'ג׳', 'ד׳', 'ה׳', 'ו׳', 'ש׳', 'א׳'];
+const MONTHS = ['תשרי', 'חשון', 'כסלו', 'טבת', 'שבט', 'אדר', 'ניסן', 'אייר', 'סיון', 'תמוז', 'אב', 'אלול'];
+const MONTHS_LEAP =
+    ['תשרי', 'חשון', 'כסלו', 'טבת', 'שבט', 'אדר א׳', 'אדר ב׳', 'ניסן', 'אייר', 'סיון', 'תמוז', 'אב', 'אלול'];
+
+@Injectable()
+export class NgbDatepickerI18nHebrew extends NgbDatepickerI18n {
+  getMonthShortName(month: number, year?: number): string { return this.getMonthFullName(month, year); }
+
+  getMonthFullName(month: number, year?: number): string {
+    return isHebrewLeapYear(year) ? MONTHS_LEAP[month - 1] : MONTHS[month - 1];
+  }
+
+  getWeekdayShortName(weekday: number): string { return WEEKDAYS[weekday - 1]; }
+
+  getDayAriaLabel(date: NgbDateStruct): string {
+    return `${hebrewNumerals(date.day)} ${this.getMonthFullName(date.month, date.year)} ${hebrewNumerals(date.year)}`;
+  }
+
+  getDayNumerals(date: NgbDateStruct): string { return hebrewNumerals(date.day); }
+
+  getWeekNumerals(weekNumber: number): string { return hebrewNumerals(weekNumber); }
+
+  getYearNumerals(year: number): string { return hebrewNumerals(year); }
+}

src/index.ts

@@ -46,6 +46,7 @@ export {
   NgbCalendarPersian,
   NgbDatepickerModule,
   NgbDatepickerI18n,
+  NgbDatepickerI18nHebrew,
   NgbDatepickerConfig,
   NgbDateStruct,
   NgbDate,