@c8y/ngx-components
Version:
Angular modules for Cumulocity IoT applications
264 lines • 33.7 kB
JavaScript
import { DOCUMENT, registerLocaleData } from '@angular/common';
import { Inject, Injectable, Optional } from '@angular/core';
import { TranslateService as NgxTranslateService } from '@ngx-translate/core';
import { keys } from 'lodash-es';
import { OptionsService } from '../common/options.service';
import { AppStateService } from '../common/ui-state.service';
import { getAngularLocalesLanguageString } from './i18n.module';
import { loadLocale } from './load-locale';
import { defineLocale, deLocale, enGbLocale, esLocale, frLocale, jaLocale, koLocale, nlLocale, plLocale, ptBrLocale, zhCnLocale } from 'ngx-bootstrap/chronos';
import { BsLocaleService } from 'ngx-bootstrap/datepicker';
import * as i0 from "@angular/core";
import * as i1 from "@ngx-translate/core";
import * as i2 from "../common/ui-state.service";
import * as i3 from "../common/options.service";
import * as i4 from "ngx-bootstrap/datepicker";
/**
* A service to manage the language of the application.
*/
export class TranslateService {
static { this.SAVE_LANGUAGE_KEY = 'c8y_language'; }
static defaultLang() {
return window.localStorage.getItem(TranslateService.SAVE_LANGUAGE_KEY);
}
constructor(ngxTranslate, ui, options, document, bsLocaleService) {
this.ngxTranslate = ngxTranslate;
this.ui = ui;
this.options = options;
this.document = document;
this.bsLocaleService = bsLocaleService;
this.langsDetail = this.options.get('languages', {});
this.langs = keys(this.langsDetail).filter(k => this.langsDetail[k]);
this.DEFAULT_SEPARATOR = '_';
const queryStringLang = this.queryStringLang();
if (queryStringLang) {
this.saveInLocalStorage(queryStringLang);
}
}
/**
* Switches the app to given locale (incl. Angular, Bootstrap, translations).
* @param localeCode The locale code. Supported formats:
* - two-letter codes for language only, for example: `en`, `de`
* - four-letter codes for language and country, separated with underscore or dash, for example: `zh_CN`, `zh_cn`, `zh-CN`, `zh-cn`
*/
async switchToLanguage(localeCode) {
const { langCountryCode: ngxLocaleCode, langCode: ngxLocaleCodeFallback } = this.parseLocaleCode(localeCode, '-');
try {
await this.loadLocales(ngxLocaleCode);
}
catch (e) {
if (ngxLocaleCodeFallback !== ngxLocaleCode) {
await this.loadLocales(ngxLocaleCodeFallback);
}
else {
throw e;
}
}
const { langCode: bsLocaleCode, langCountryCode: ngxTranslateLocaleCode } = this.parseLocaleCode(localeCode);
this.setBsLocale(bsLocaleCode);
this.setLanguage(ngxTranslateLocaleCode);
}
async loadLocales(moduleLang) {
const module = await loadLocale(getAngularLocalesLanguageString(moduleLang));
registerLocaleData(module.default);
}
setLanguage(lang) {
this.ngxTranslate.setDefaultLang(this.options.get('defaultLanguage', 'en'));
this.ngxTranslate.use(lang).subscribe(() => {
this.ui.state$.next({ ...this.ui.state, lang });
});
this.document.documentElement.lang = lang;
}
/**
* Finds the first supported language
*/
firstSupportedLanguage() {
const languages = [this.queryStringLang(), this.localStorageLang()]
.concat([this.options.get('defaultLanguage')])
.concat(this.browserLangs())
.concat(['en'])
.filter(Boolean)
.map(lang => lang.toLowerCase());
const preferredLanguage = languages.find(lang => this.getSupported(lang));
return this.getSupported(preferredLanguage);
}
/**
* Converts a iso language code to a PO language code (e.g. de-de gets de_de).
* @param lang The iso language code.
*/
convertToLanguageCodePO(lang) {
const sep = lang.indexOf('-') > -1 ? '-' : this.DEFAULT_SEPARATOR;
const [langMain, langSpecific] = lang.split(sep);
const langLast = langSpecific ? `${this.DEFAULT_SEPARATOR}${langSpecific}` : '';
return `${langMain}${langLast}`;
}
/**
* Returns the language in the native language.
* @param lang The language two-letter code.
* @return The native name.
*/
getNativeLanguage(lang) {
const langData = (this.langsDetail || {})[lang] || {};
return langData.nativeName || lang;
}
saveInLocalStorage(lang) {
window.localStorage.setItem(TranslateService.SAVE_LANGUAGE_KEY, lang);
}
getSupported(localeCode) {
if (!localeCode) {
return undefined;
}
const localeCodeParsed = this.parseLocaleCode(localeCode);
const localeCodesParsed = this.langs.map(lang => this.parseLocaleCode(lang));
const langCountryCodeMatch = localeCodesParsed.find(({ langCountryCode }) => langCountryCode === localeCodeParsed.langCountryCode);
if (langCountryCodeMatch) {
return langCountryCodeMatch.langCountryCode;
}
const langCodeMatch = localeCodesParsed.find(({ langCode }) => langCode === localeCodeParsed.langCode);
if (langCodeMatch) {
return langCodeMatch.langCountryCode;
}
return undefined;
}
/**
* Gets the language from the query parameter.
* @return The language two-letter code.
*/
queryStringLang() {
return this.getQueryParameter('lang');
}
parseLocaleCode(localeCode, outputSeparator = '_') {
// - 2 letter language code
// - optional region code that's either 2 letters OR 3 digits
const matches = localeCode.match(/^([a-z]{2})([_-]([a-z]{2}|[0-9]{3}))?$/i);
if (!matches) {
throw new Error(`Could not parse locale code "${localeCode}". Expected format: language code (2 letters) optionally followed by region code (2 letters or 3 digits) separated with "_" or "-", e.g. "en-US" or "es-419".`);
}
const langCode = matches[1].toLowerCase();
const regionCode = matches[3]?.toUpperCase();
const langCountryCode = `${langCode}${regionCode ? `${outputSeparator}${regionCode}` : ''}`;
return { langCode, langCountryCode };
}
/**
* Gets the language from local storage.
* @return The language two-letter code.
*/
localStorageLang() {
return window.localStorage.getItem(TranslateService.SAVE_LANGUAGE_KEY);
}
/**
* Determines which language is set in the browser.
* @return The languages the browser supports as string array.
*/
browserLangs() {
const { navigator } = window;
const browserLanguagePropertyKeys = [
'languages',
'language',
'browserLanguage',
'systemLanguage',
'userLanguage'
];
return browserLanguagePropertyKeys.reduce((languages, property) => {
const propertyLanguages = navigator[property];
if (typeof propertyLanguages === 'string') {
languages.push(propertyLanguages);
}
else if (Array.isArray(propertyLanguages)) {
languages = languages.concat(propertyLanguages);
}
return languages;
}, []);
}
getQueryParameter(queryKey) {
// TODO: replace this with URLSearchParams, ie 11 still doesn't support :()
const query = window.location.search.substring(1);
let result;
query.split('&').find(pair => {
const [key, value] = pair.split('=');
if (key === queryKey) {
result = value;
}
return result;
});
return result;
}
/**
* Sets locale for ngx-bootstrap.
* @param lang A two-letter language code.
* @private
*/
setBsLocale(lang) {
switch (lang) {
case 'de': {
defineLocale(lang, deLocale);
this.bsLocaleService.use(lang);
break;
}
case 'en': {
// 'en-gb' is created because overwriting default 'en' breaks date-picker somehow
defineLocale('en-gb', enGbLocale);
this.bsLocaleService.use('en-gb');
break;
}
case 'es': {
defineLocale(lang, esLocale);
this.bsLocaleService.use(lang);
break;
}
case 'fr': {
defineLocale(lang, frLocale);
this.bsLocaleService.use(lang);
break;
}
case 'ja': {
defineLocale(lang, jaLocale);
this.bsLocaleService.use(lang);
break;
}
case 'ko': {
defineLocale(lang, koLocale);
this.bsLocaleService.use(lang);
break;
}
case 'nl': {
defineLocale(lang, nlLocale);
this.bsLocaleService.use(lang);
break;
}
case 'pl': {
defineLocale(lang, plLocale);
this.bsLocaleService.use(lang);
break;
}
case 'pt': {
defineLocale(lang, ptBrLocale);
this.bsLocaleService.use(lang);
break;
}
case 'zh': {
defineLocale(lang, zhCnLocale);
this.bsLocaleService.use(lang);
break;
}
default: {
defineLocale('en-gb', enGbLocale);
this.bsLocaleService.use('en-gb');
}
}
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: TranslateService, deps: [{ token: i1.TranslateService }, { token: i2.AppStateService }, { token: i3.OptionsService }, { token: DOCUMENT }, { token: i4.BsLocaleService, optional: true }], target: i0.ɵɵFactoryTarget.Injectable }); }
static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: TranslateService, providedIn: 'root' }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: TranslateService, decorators: [{
type: Injectable,
args: [{
providedIn: 'root'
}]
}], ctorParameters: () => [{ type: i1.TranslateService }, { type: i2.AppStateService }, { type: i3.OptionsService }, { type: Document, decorators: [{
type: Inject,
args: [DOCUMENT]
}] }, { type: i4.BsLocaleService, decorators: [{
type: Optional
}] }] });
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window.localStorage.getItem(TranslateService.SAVE_LANGUAGE_KEY);\n  }\n  langsDetail: any = this.options.get('languages', {});\n  langs: any = keys(this.langsDetail).filter(k => this.langsDetail[k]);\n  private DEFAULT_SEPARATOR = '_';\n\n  constructor(\n    private ngxTranslate: NgxTranslateService,\n    private ui: AppStateService,\n    private options: OptionsService,\n    @Inject(DOCUMENT) private document: Document,\n    @Optional() private bsLocaleService: BsLocaleService\n  ) {\n    const queryStringLang = this.queryStringLang();\n    if (queryStringLang) {\n      this.saveInLocalStorage(queryStringLang);\n    }\n  }\n\n  /**\n   * Switches the app to given locale (incl. 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Supported formats:\n   * - two-letter codes for language only, for example: `en`, `de`\n   * - four-letter codes for language and country, separated with underscore or dash, for example: `zh_CN`, `zh_cn`, `zh-CN`, `zh-cn`\n   */\n  async switchToLanguage(localeCode: string) {\n    const { langCountryCode: ngxLocaleCode, langCode: ngxLocaleCodeFallback } =\n      this.parseLocaleCode(localeCode, '-');\n    try {\n      await this.loadLocales(ngxLocaleCode);\n    } catch (e) {\n      if (ngxLocaleCodeFallback !== ngxLocaleCode) {\n        await this.loadLocales(ngxLocaleCodeFallback);\n      } else {\n        throw e;\n      }\n    }\n\n    const { langCode: bsLocaleCode, langCountryCode: ngxTranslateLocaleCode } =\n      this.parseLocaleCode(localeCode);\n    this.setBsLocale(bsLocaleCode);\n    this.setLanguage(ngxTranslateLocaleCode);\n  }\n\n  async loadLocales(moduleLang) {\n    const module: any = await loadLocale(getAngularLocalesLanguageString(moduleLang));\n    registerLocaleData(module.default);\n  }\n\n  setLanguage(lang: string) {\n    this.ngxTranslate.setDefaultLang(this.options.get('defaultLanguage', 'en'));\n    this.ngxTranslate.use(lang).subscribe(() => {\n      this.ui.state$.next({ ...this.ui.state, lang });\n    });\n\n    this.document.documentElement.lang = lang;\n  }\n\n  /**\n   * Finds the first supported language\n   */\n  firstSupportedLanguage() {\n    const languages = [this.queryStringLang(), this.localStorageLang()]\n      .concat([this.options.get('defaultLanguage')])\n      .concat(this.browserLangs())\n      .concat(['en'])\n      .filter(Boolean)\n      .map(lang => lang.toLowerCase());\n\n    const preferredLanguage = languages.find(lang => this.getSupported(lang));\n    return this.getSupported(preferredLanguage);\n  }\n\n  /**\n   * Converts a iso language code to a PO language code (e.g. de-de gets de_de).\n   * @param lang The iso language code.\n   */\n  convertToLanguageCodePO(lang: string): string {\n    const sep = lang.indexOf('-') > -1 ? '-' : this.DEFAULT_SEPARATOR;\n    const [langMain, langSpecific] = lang.split(sep);\n    const langLast = langSpecific ? `${this.DEFAULT_SEPARATOR}${langSpecific}` : '';\n    return `${langMain}${langLast}`;\n  }\n\n  /**\n   * Returns the language in the native language.\n   * @param lang The language two-letter code.\n   * @return The native name.\n   */\n  getNativeLanguage(lang: string): string {\n    const langData = (this.langsDetail || {})[lang] || {};\n    return langData.nativeName || lang;\n  }\n\n  saveInLocalStorage(lang: string) {\n    window.localStorage.setItem(TranslateService.SAVE_LANGUAGE_KEY, lang);\n  }\n\n  getSupported(localeCode: string) {\n    if (!localeCode) {\n      return undefined;\n    }\n    const localeCodeParsed = this.parseLocaleCode(localeCode);\n    const localeCodesParsed = this.langs.map(lang => this.parseLocaleCode(lang));\n    const langCountryCodeMatch = localeCodesParsed.find(\n      ({ langCountryCode }) => langCountryCode === localeCodeParsed.langCountryCode\n    );\n    if (langCountryCodeMatch) {\n      return langCountryCodeMatch.langCountryCode;\n    }\n    const langCodeMatch = localeCodesParsed.find(\n      ({ langCode }) => langCode === localeCodeParsed.langCode\n    );\n    if (langCodeMatch) {\n      return langCodeMatch.langCountryCode;\n    }\n    return undefined;\n  }\n\n  /**\n   * Gets the language from the query parameter.\n   * @return The language two-letter code.\n   */\n  queryStringLang() {\n    return this.getQueryParameter('lang');\n  }\n\n  private parseLocaleCode(\n    localeCode: string,\n    outputSeparator = '_'\n  ): { langCode: string; langCountryCode: string } {\n    // - 2 letter language code\n    // - optional region code that's either 2 letters OR 3 digits\n    const matches = localeCode.match(/^([a-z]{2})([_-]([a-z]{2}|[0-9]{3}))?$/i);\n    if (!matches) {\n      throw new Error(\n        `Could not parse locale code \"${localeCode}\". Expected format: language code (2 letters) optionally followed by region code (2 letters or 3 digits) separated with \"_\" or \"-\", e.g. \"en-US\" or \"es-419\".`\n      );\n    }\n    const langCode = matches[1].toLowerCase();\n    const regionCode = matches[3]?.toUpperCase();\n    const langCountryCode = `${langCode}${regionCode ? `${outputSeparator}${regionCode}` : ''}`;\n    return { langCode, langCountryCode };\n  }\n\n  /**\n   * Gets the language from local storage.\n   * @return The language two-letter code.\n   */\n  private localStorageLang() {\n    return window.localStorage.getItem(TranslateService.SAVE_LANGUAGE_KEY);\n  }\n\n  /**\n   * Determines which language is set in the browser.\n   * @return The languages the browser supports as string array.\n   */\n  private browserLangs() {\n    const { navigator } = window;\n    const browserLanguagePropertyKeys = [\n      'languages',\n      'language',\n      'browserLanguage',\n      'systemLanguage',\n      'userLanguage'\n    ];\n    return browserLanguagePropertyKeys.reduce((languages, property) => {\n      const propertyLanguages = navigator[property];\n      if (typeof propertyLanguages === 'string') {\n        languages.push(propertyLanguages);\n      } else if (Array.isArray(propertyLanguages)) {\n        languages = languages.concat(propertyLanguages);\n      }\n      return languages;\n    }, []);\n  }\n\n  private getQueryParameter(queryKey) {\n    // TODO: replace this with URLSearchParams, ie 11 still doesn't support :()\n    const query = window.location.search.substring(1);\n    let result;\n    query.split('&').find(pair => {\n      const [key, value] = pair.split('=');\n      if (key === queryKey) {\n        result = value;\n      }\n      return result;\n    });\n    return result;\n  }\n\n  /**\n   * Sets locale for ngx-bootstrap.\n   * @param lang A two-letter language code.\n   * @private\n   */\n  private setBsLocale(lang) {\n    switch (lang) {\n      case 'de': {\n        defineLocale(lang, deLocale);\n        this.bsLocaleService.use(lang);\n        break;\n      }\n      case 'en': {\n        // 'en-gb' is created because overwriting default 'en' breaks date-picker somehow\n        defineLocale('en-gb', enGbLocale);\n        this.bsLocaleService.use('en-gb');\n        break;\n      }\n      case 'es': {\n        defineLocale(lang, esLocale);\n        this.bsLocaleService.use(lang);\n        break;\n      }\n      case 'fr': {\n        defineLocale(lang, frLocale);\n        this.bsLocaleService.use(lang);\n        break;\n      }\n      case 'ja': {\n        defineLocale(lang, jaLocale);\n        this.bsLocaleService.use(lang);\n        break;\n      }\n      case 'ko': {\n        defineLocale(lang, koLocale);\n        this.bsLocaleService.use(lang);\n        break;\n      }\n      case 'nl': {\n        defineLocale(lang, nlLocale);\n        this.bsLocaleService.use(lang);\n        break;\n      }\n      case 'pl': {\n        defineLocale(lang, plLocale);\n        this.bsLocaleService.use(lang);\n        break;\n      }\n      case 'pt': {\n        defineLocale(lang, ptBrLocale);\n        this.bsLocaleService.use(lang);\n        break;\n      }\n      case 'zh': {\n        defineLocale(lang, zhCnLocale);\n        this.bsLocaleService.use(lang);\n        break;\n      }\n      default: {\n        defineLocale('en-gb', enGbLocale);\n        this.bsLocaleService.use('en-gb');\n      }\n    }\n  }\n}\n"]}