fix: Several date/time components use locales correctly

packages/base/src/locale/getLocale.js

@@ -2,10 +2,20 @@ import detectNavigatorLanguage from "../util/detectNavigatorLanguage.js";
 import { getLanguage as getConfigLanguage } from "../config/Language.js";
 import Locale from "./Locale.js";
 
+const cache = new Map();
+
+const getLocaleInstance = lang => {
+	if (!cache.has(lang)) {
+		cache.set(lang, new Locale(lang));
+	}
+
+	return cache.get(lang);
+};
+
 const convertToLocaleOrNull = lang => {
 	try {
 		if (lang && typeof lang === "string") {
-			return new Locale(lang);
+			return getLocaleInstance(lang);
 		}
 	} catch (e) {
 		// ignore
@@ -22,7 +32,7 @@ const getLocale = lang => {
 	}
 
 	if (getConfigLanguage()) {
-		return new Locale(getConfigLanguage());
+		return getLocaleInstance(getConfigLanguage());
 	}
 
 	return convertToLocaleOrNull(detectNavigatorLanguage());

packages/localization/src/getCachedLocaleDataInstance.js

@@ -0,0 +1,13 @@
+import LocaleData from "./LocaleData.js";
+
+const cache = new Map();
+
+const getCachedLocaleDataInstance = locale => {
+	if (!cache.has(locale)) {
+		cache.set(locale, LocaleData.getInstance(locale));
+	}
+
+	return cache.get(locale);
+};
+
+export default getCachedLocaleDataInstance;

packages/main/src/Calendar.js

@@ -4,7 +4,7 @@ import { fetchCldr } from "@ui5/webcomponents-base/dist/asset-registries/LocaleD
 import { getCalendarType } from "@ui5/webcomponents-base/dist/config/CalendarType.js";
 import getLocale from "@ui5/webcomponents-base/dist/locale/getLocale.js";
 import DateFormat from "@ui5/webcomponents-localization/dist/DateFormat.js";
-import LocaleData from "@ui5/webcomponents-localization/dist/LocaleData.js";
+import getCachedLocaleDataInstance from "@ui5/webcomponents-localization/dist/getCachedLocaleDataInstance.js";
 import CalendarDate from "@ui5/webcomponents-localization/dist/dates/CalendarDate.js";
 import CalendarType from "@ui5/webcomponents-base/dist/types/CalendarType.js";
 import Integer from "@ui5/webcomponents-base/dist/types/Integer.js";
@@ -209,8 +209,6 @@ class Calendar extends UI5Element {
 
 	constructor() {
 		super();
-		this._oLocale = getLocale();
-		this._oLocaleData = new LocaleData(this._oLocale);
 		this._header = {};
 		this._header.onPressPrevious = this._handlePrevious.bind(this);
 		this._header.onPressNext = this._handleNext.bind(this);
@@ -235,6 +233,7 @@ class Calendar extends UI5Element {
 	}
 
 	onBeforeRendering() {
+		const localeData = getCachedLocaleDataInstance(getLocale());
 		const oYearFormat = DateFormat.getDateInstance({ format: "y", calendarType: this._primaryCalendarType });
 		const firstDayOfCalendarTimeStamp = this._getMinCalendarDate();
 
@@ -252,7 +251,7 @@ class Calendar extends UI5Element {
 		this._oMonth.primaryCalendarType = this._primaryCalendarType;
 		this._oMonth.minDate = this.minDate;
 		this._oMonth.maxDate = this.maxDate;
-		this._header.monthText = this._oLocaleData.getMonths("wide", this._primaryCalendarType)[this._month];
+		this._header.monthText = localeData.getMonths("wide", this._primaryCalendarType)[this._month];
 		this._header.yearText = oYearFormat.format(this._localDate, true);
 
 		// month picker
@@ -352,7 +351,8 @@ class Calendar extends UI5Element {
 	}
 
 	get _primaryCalendarType() {
-		return this.primaryCalendarType || getCalendarType() || LocaleData.getInstance(getLocale()).getPreferredCalendarType();
+		const localeData = getCachedLocaleDataInstance(getLocale());
+		return this.primaryCalendarType || getCalendarType() || localeData.getPreferredCalendarType();
 	}
 
 	get _formatPattern() {

packages/main/src/DatePicker.js

@@ -4,7 +4,7 @@ import { fetchCldr } from "@ui5/webcomponents-base/dist/asset-registries/LocaleD
 import { getCalendarType } from "@ui5/webcomponents-base/dist/config/CalendarType.js";
 import getLocale from "@ui5/webcomponents-base/dist/locale/getLocale.js";
 import { getFeature } from "@ui5/webcomponents-base/dist/FeaturesRegistry.js";
-import LocaleData from "@ui5/webcomponents-localization/dist/LocaleData.js";
+import getCachedLocaleDataInstance from "@ui5/webcomponents-localization/dist/getCachedLocaleDataInstance.js";
 import DateFormat from "@ui5/webcomponents-localization/dist/DateFormat.js";
 import CalendarType from "@ui5/webcomponents-base/dist/types/CalendarType.js";
 import CalendarDate from "@ui5/webcomponents-localization/dist/dates/CalendarDate.js";
@@ -761,7 +761,8 @@ class DatePicker extends UI5Element {
 	}
 
 	get _primaryCalendarType() {
-		return this.primaryCalendarType || getCalendarType() || LocaleData.getInstance(getLocale()).getPreferredCalendarType();
+		const localeData = getCachedLocaleDataInstance(getLocale());
+		return this.primaryCalendarType || getCalendarType() || localeData.getPreferredCalendarType();
 	}
 
 	get _formatPattern() {

packages/main/src/DateTimePicker.js

@@ -1,6 +1,6 @@
 import ResizeHandler from "@ui5/webcomponents-base/dist/delegate/ResizeHandler.js";
 import getLocale from "@ui5/webcomponents-base/dist/locale/getLocale.js";
-import LocaleData from "@ui5/webcomponents-localization/dist/LocaleData.js";
+import getCachedLocaleDataInstance from "@ui5/webcomponents-localization/dist/getCachedLocaleDataInstance.js";
 import CalendarDate from "@ui5/webcomponents-localization/dist/dates/CalendarDate.js";
 import "@ui5/webcomponents-icons/dist/date-time.js";
 import {
@@ -532,7 +532,8 @@ class DateTimePicker extends DatePicker {
 		const hasHours = !!pattern.match(/H/i);
 		const fallback = !pattern || !hasHours;
 
-		return fallback ? LocaleData.getInstance(getLocale()).getCombinedDateTimePattern("medium", "medium", this._primaryCalendarType) : pattern;
+		const localeData = getCachedLocaleDataInstance(getLocale());
+		return fallback ? localeData.getCombinedDateTimePattern("medium", "medium", this._primaryCalendarType) : pattern;
 	}
 
 	/**

packages/main/src/DayPicker.js

@@ -4,7 +4,7 @@ import { fetchCldr } from "@ui5/webcomponents-base/dist/asset-registries/LocaleD
 import getLocale from "@ui5/webcomponents-base/dist/locale/getLocale.js";
 import { getFirstDayOfWeek } from "@ui5/webcomponents-base/dist/config/FormatSettings.js";
 import DateFormat from "@ui5/webcomponents-localization/dist/DateFormat.js";
-import LocaleData from "@ui5/webcomponents-localization/dist/LocaleData.js";
+import getCachedLocaleDataInstance from "@ui5/webcomponents-localization/dist/getCachedLocaleDataInstance.js";
 import { getCalendarType } from "@ui5/webcomponents-base/dist/config/CalendarType.js";
 import ItemNavigation from "@ui5/webcomponents-base/dist/delegate/ItemNavigation.js";
 import {
@@ -56,6 +56,7 @@ const monthDiff = (startDate, endDate) => {
  */
 const metadata = {
 	tag: "ui5-daypicker",
+	languageAware: true,
 	properties: /** @lends  sap.ui.webcomponents.main.DayPicker.prototype */ {
 		/**
 		 * A UNIX timestamp - seconds since 00:00:00 UTC on Jan 1, 1970.
@@ -212,8 +213,6 @@ class DayPicker extends UI5Element {
 
 	constructor() {
 		super();
-		this._oLocale = getLocale();
-		this._oLocaleData = new LocaleData(this._oLocale);
 
 		this._itemNav = new ItemNavigation(this, {
 			rowSize: 7,
@@ -249,6 +248,8 @@ class DayPicker extends UI5Element {
 	}
 
 	onBeforeRendering() {
+		const localeData = getCachedLocaleDataInstance(getLocale());
+
 		let oCalDate,
 			day,
 			timestamp,
@@ -261,7 +262,7 @@ class DayPicker extends UI5Element {
 		let week = [];
 		this._weekNumbers = [];
 		let weekday;
-		const _monthsNameWide = this._oLocaleData.getMonths("wide", this._calendarDate._oUDate.sCalendarType);
+		const _monthsNameWide = localeData.getMonths("wide", this._calendarDate._oUDate.sCalendarType);
 
 		this._minDateObject = new Date(this._minDate);
 		this._maxDateObject = new Date(this._maxDate);
@@ -335,7 +336,7 @@ class DayPicker extends UI5Element {
 
 			if (day.classes.indexOf("ui5-dp-wday6") !== -1
 				|| _aVisibleDays.length - 1 === i) {
-				const weekNumber = calculateWeekNumber(getFirstDayOfWeek(), oCalDate.toUTCJSDate(), oCalDate.getYear(), this._oLocale, this._oLocaleData);
+				const weekNumber = calculateWeekNumber(getFirstDayOfWeek(), oCalDate.toUTCJSDate(), oCalDate.getYear(), getLocale(), localeData);
 				if (lastWeekNumber !== weekNumber) {
 					const weekNum = {
 						weekNum: weekNumber,
@@ -358,8 +359,8 @@ class DayPicker extends UI5Element {
 			this._itemNav.current = todayIndex;
 		}
 
-		const aDayNamesWide = this._oLocaleData.getDays("wide", this._primaryCalendarType);
-		const aDayNamesAbbreviated = this._oLocaleData.getDays("abbreviated", this._primaryCalendarType);
+		const aDayNamesWide = localeData.getDays("wide", this._primaryCalendarType);
+		const aDayNamesAbbreviated = localeData.getDays("abbreviated", this._primaryCalendarType);
 		const aUltraShortNames = aDayNamesAbbreviated.map(n => n);
 		let dayName;
 
@@ -607,7 +608,8 @@ class DayPicker extends UI5Element {
 	}
 
 	get _primaryCalendarType() {
-		return this.primaryCalendarType || getCalendarType() || LocaleData.getInstance(getLocale()).getPreferredCalendarType();
+		const localeData = getCachedLocaleDataInstance(getLocale());
+		return this.primaryCalendarType || getCalendarType() || localeData.getPreferredCalendarType();
 	}
 
 	get focusableDays() {
@@ -793,9 +795,11 @@ class DayPicker extends UI5Element {
 	}
 
 	_isWeekend(oDate) {
+		const localeData = getCachedLocaleDataInstance(getLocale());
+
 		const iWeekDay = oDate.getDay(),
-			iWeekendStart = this._oLocaleData.getWeekendStart(),
-			iWeekendEnd = this._oLocaleData.getWeekendEnd();
+			iWeekendStart = localeData.getWeekendStart(),
+			iWeekendEnd = localeData.getWeekendEnd();
 
 		return (iWeekDay >= iWeekendStart && iWeekDay <= iWeekendEnd)
 			|| (iWeekendEnd < iWeekendStart && (iWeekDay >= iWeekendStart || iWeekDay <= iWeekendEnd));
@@ -926,8 +930,9 @@ class DayPicker extends UI5Element {
 	}
 
 	_getFirstDayOfWeek() {
+		const localeData = getCachedLocaleDataInstance(getLocale());
 		const confFirstDayOfWeek = getFirstDayOfWeek();
-		return Number.isInteger(confFirstDayOfWeek) ? confFirstDayOfWeek : this._oLocaleData.getFirstDayOfWeek();
+		return Number.isInteger(confFirstDayOfWeek) ? confFirstDayOfWeek : localeData.getFirstDayOfWeek();
 	}
 
 	get styles() {

packages/main/src/MonthPicker.js

@@ -2,7 +2,7 @@ import UI5Element from "@ui5/webcomponents-base/dist/UI5Element.js";
 import litRender from "@ui5/webcomponents-base/dist/renderer/LitRenderer.js";
 import { getCalendarType } from "@ui5/webcomponents-base/dist/config/CalendarType.js";
 import DateFormat from "@ui5/webcomponents-localization/dist/DateFormat.js";
-import LocaleData from "@ui5/webcomponents-localization/dist/LocaleData.js";
+import getCachedLocaleDataInstance from "@ui5/webcomponents-localization/dist/getCachedLocaleDataInstance.js";
 import ItemNavigation from "@ui5/webcomponents-base/dist/delegate/ItemNavigation.js";
 import Integer from "@ui5/webcomponents-base/dist/types/Integer.js";
 import { isSpace, isEnter } from "@ui5/webcomponents-base/dist/Keys.js";
@@ -19,6 +19,7 @@ import styles from "./generated/themes/MonthPicker.css.js";
  */
 const metadata = {
 	tag: "ui5-monthpicker",
+	languageAware: true,
 	properties: /** @lends  sap.ui.webcomponents.main.MonthPicker.prototype */ {
 		/**
 		 * A UNIX timestamp - seconds since 00:00:00 UTC on Jan 1, 1970.
@@ -133,8 +134,6 @@ class MonthPicker extends UI5Element {
 
 	constructor() {
 		super();
-		this._oLocale = getLocale();
-		this._oLocaleData = new LocaleData(this._oLocale);
 
 		this._itemNav = new ItemNavigation(this, {
 			pageSize: 12,
@@ -164,6 +163,8 @@ class MonthPicker extends UI5Element {
 	}
 
 	onBeforeRendering() {
+		const localeData = getCachedLocaleDataInstance(getLocale());
+
 		const quarters = [];
 		const oCalDate = CalendarDate.fromTimestamp(new Date().getTime(), this._primaryCalendarType);
 		let timestamp;
@@ -175,7 +176,7 @@ class MonthPicker extends UI5Element {
 			const month = {
 				timestamp: timestamp.toString(),
 				id: `${this._id}-m${i}`,
-				name: this._oLocaleData.getMonths("wide", this._primaryCalendarType)[i],
+				name: localeData.getMonths("wide", this._primaryCalendarType)[i],
 				classes: "ui5-mp-item",
 			};
 
@@ -221,7 +222,8 @@ class MonthPicker extends UI5Element {
 	}
 
 	get _primaryCalendarType() {
-		return this.primaryCalendarType || getCalendarType() || LocaleData.getInstance(getLocale()).getPreferredCalendarType();
+		const localeData = getCachedLocaleDataInstance(getLocale());
+		return this.primaryCalendarType || getCalendarType() || localeData.getPreferredCalendarType();
 	}
 
 	get _isPattern() {

packages/main/src/TimePicker.js

@@ -4,7 +4,7 @@ import { fetchI18nBundle, getI18nBundle } from "@ui5/webcomponents-base/dist/i18
 import getLocale from "@ui5/webcomponents-base/dist/locale/getLocale.js";
 import ValueState from "@ui5/webcomponents-base/dist/types/ValueState.js";
 import DateFormat from "@ui5/webcomponents-localization/dist/DateFormat.js";
-import LocaleData from "@ui5/webcomponents-localization/dist/LocaleData.js";
+import getCachedLocaleDataInstance from "@ui5/webcomponents-localization/dist/getCachedLocaleDataInstance.js";
 import "@ui5/webcomponents-localization/dist/features/calendar/Gregorian.js"; // default calendar for bundling
 import { fetchCldr } from "@ui5/webcomponents-base/dist/asset-registries/LocaleData.js";
 import { isPhone } from "@ui5/webcomponents-base/dist/Device.js";
@@ -345,7 +345,8 @@ class TimePicker extends UI5Element {
 
 	onBeforeRendering() {
 		if (!this.formatPattern) {
-			this.formatPattern = LocaleData.getInstance(getLocale()).getTimePattern(this.getFormat().oFormatOptions.style);
+			const localeData = getCachedLocaleDataInstance(getLocale());
+			this.formatPattern = localeData.getTimePattern(this.getFormat().oFormatOptions.style);
 		}
 
 		if (this.value === undefined) {

packages/main/src/YearPicker.js

@@ -1,6 +1,6 @@
 import UI5Element from "@ui5/webcomponents-base/dist/UI5Element.js";
 import litRender from "@ui5/webcomponents-base/dist/renderer/LitRenderer.js";
-import LocaleData from "@ui5/webcomponents-localization/dist/LocaleData.js";
+import getCachedLocaleDataInstance from "@ui5/webcomponents-localization/dist/getCachedLocaleDataInstance.js";
 import DateFormat from "@ui5/webcomponents-localization/dist/DateFormat.js";
 import { getCalendarType } from "@ui5/webcomponents-base/dist/config/CalendarType.js";
 import { isEnter, isSpace } from "@ui5/webcomponents-base/dist/Keys.js";
@@ -20,6 +20,7 @@ import styles from "./generated/themes/YearPicker.css.js";
  */
 const metadata = {
 	tag: "ui5-yearpicker",
+	languageAware: true,
 	properties: /** @lends  sap.ui.webcomponents.main.YearPicker.prototype */ {
 		/**
 		 * A UNIX timestamp - seconds since 00:00:00 UTC on Jan 1, 1970.
@@ -244,7 +245,8 @@ class YearPicker extends UI5Element {
 	}
 
 	get _primaryCalendarType() {
-		return this.primaryCalendarType || getCalendarType() || LocaleData.getInstance(getLocale()).getPreferredCalendarType();
+		const localeData = getCachedLocaleDataInstance(getLocale());
+		return this.primaryCalendarType || getCalendarType() || localeData.getPreferredCalendarType();
 	}
 
 	get _isPattern() {

packages/main/test/pages/Simple.html

@@ -7,15 +7,7 @@
 
     <title>Button</title>
 
-    <script data-ui5-config type="application/json">
-        {
-            "language": "EN",
-            "noConflict": {
-                "events": ["click"]
-            },
-            "calendarType": "Islamic"
-        }
-    </script>
+
 
 	<script src="../../webcomponentsjs/webcomponents-loader.js"></script>
 	<script src="../../resources/bundle.esm.js" type="module"></script>
@@ -26,6 +18,7 @@
 <body style="background-color: var(--sapBackgroundColor);">
 
 <ui5-button icon="download"></ui5-button>
+<ui5-datepicker></ui5-datepicker>
 
 </body>
 </html>

packages/main/test/specs/MultiComboBox.spec.js

@@ -25,10 +25,12 @@ describe("MultiComboBox general interaction", () => {
 			assert.ok(mcb.getProperty("focused"), "MultiComboBox should be focused.");
 
 			input.keys("ArrowLeft");
+			browser.pause(100);
 
 			assert.notOk(mcb.getProperty("focused"), "MultiComboBox should no longer be focused.");
 
 			input.keys("ArrowRight");
+			browser.pause(100);
 
 			assert.ok(mcb.getProperty("focused"), "MultiComboBox should be focused again.");
 		});