83 lines
2.4 KiB
TypeScript
83 lines
2.4 KiB
TypeScript
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import {
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TranslateStore,
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TranslateService,
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TranslateLoader,
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TranslateCompiler,
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TranslateParser,
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MissingTranslationHandler,
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USE_DEFAULT_LANG,
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USE_STORE
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} from '@ngx-translate/core';
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import { Inject, Injectable } from '@angular/core';
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import { Observable, of } from 'rxjs';
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/**
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* Custom translate service. Wraps the get, stream and instant method not to throw an error, if null or undefined
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* is passed as keys to them. This happens, if yet not resolved properties should be translated in the templates.
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* Returns empty strings instead.
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*/
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@Injectable()
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export class OpenSlidesTranslateService extends TranslateService {
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/**
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* See the ngx-translate TranslateService for docs.
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*
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* @param store
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* @param currentLoader
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* @param compiler
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* @param parser
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* @param missingTranslationHandler
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* @param useDefaultLang
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* @param isolate
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*/
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public constructor(
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store: TranslateStore,
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currentLoader: TranslateLoader,
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compiler: TranslateCompiler,
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parser: TranslateParser,
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missingTranslationHandler: MissingTranslationHandler,
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@Inject(USE_DEFAULT_LANG) useDefaultLang: boolean = true,
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@Inject(USE_STORE) isolate: boolean = false
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) {
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super(store, currentLoader, compiler, parser, missingTranslationHandler, useDefaultLang, isolate);
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}
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/**
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* Uses the original get function and returns an empty string instead of throwing an error.
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*
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* @override
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*/
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public get(key: string | Array<string>, interpolateParams?: Object): Observable<string | any> {
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try {
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return super.get(key, interpolateParams);
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} catch {
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return of('');
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}
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}
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/**
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* Uses the original key function and returns an empty string instead of throwing an error.
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*
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* @override
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*/
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public stream(key: string | Array<string>, interpolateParams?: Object): Observable<string | any> {
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try {
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return super.stream(key, interpolateParams);
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} catch {
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return of('');
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}
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}
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/**
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* Uses the original instant function and returns an empty string instead of throwing an error.
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*
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* @override
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*/
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public instant(key: string | Array<string>, interpolateParams?: Object): string | any {
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try {
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return super.instant(key, interpolateParams);
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} catch {
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return '';
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}
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}
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}
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