/*! * @license * Copyright 2016 Alfresco Software, Ltd. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import { Inject, Injectable, OpaqueToken } from '@angular/core'; import { TranslateService } from '@ngx-translate/core'; import { Observable } from 'rxjs/Rx'; import { AlfrescoTranslateLoader } from './translate-loader.service'; export const TRANSLATION_PROVIDER = new OpaqueToken('Injection token for translation providers.'); export interface TranslationProvider { name: string; source: string; } @Injectable() export class TranslationService { defaultLang: string = 'en'; userLang: string = 'en'; customLoader: AlfrescoTranslateLoader; constructor(public translate: TranslateService, @Inject(TRANSLATION_PROVIDER) providers: TranslationProvider[]) { this.userLang = translate.getBrowserLang() || this.defaultLang; translate.setDefaultLang(this.defaultLang); this.customLoader = this.translate.currentLoader; this.use(this.userLang); if (providers && providers.length > 0) { for (let provider of providers) { this.addTranslationFolder(provider.name, provider.source); } } } addTranslationFolder(name: string = '', path: string = '') { if (!this.customLoader.providerRegistered(name)) { this.customLoader.registerProvider(name, path); if (this.userLang !== this.defaultLang) { this.translate.getTranslation(this.defaultLang).subscribe(() => { this.translate.getTranslation(this.userLang).subscribe( () => { this.translate.use(this.userLang); } ); }); } else { this.translate.getTranslation(this.userLang).subscribe( () => { this.translate.use(this.userLang); } ); } } } use(lang: string): Observable { this.customLoader.init(lang); return this.translate.use(lang); } get(key: string|Array, interpolateParams?: Object): Observable { return this.translate.get(key, interpolateParams); } }