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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | 1x 17x 17x 17x 4x 5x 5x 5x 4x 1x | /**
* Copyright (c) Siemens 2016 - 2026
* SPDX-License-Identifier: MIT
*/
import { Injectable } from '@angular/core';
import {
MissingTranslationHandler,
MissingTranslationHandlerParams,
TranslateDefaultParser,
Translation
} from '@ngx-translate/core';
import { Observable } from 'rxjs';
/**
* Handles missing translations by returning the default value if available.
*/
@Injectable()
export class SiMissingTranslateService implements MissingTranslationHandler {
private readonly parser = new TranslateDefaultParser();
private readonly defaultTranslations: Record<string, string> = {};
// eslint-disable-next-line @angular-eslint/prefer-inject
constructor(private readonly appHandler?: MissingTranslationHandler) {}
/** Sets a default translation for a given key. */
setTranslation(key: string, value: string): void {
this.defaultTranslations[key] = value;
}
/** Gets the default translation for a given key. */
getDefault(key: string): string | undefined {
return this.defaultTranslations[key];
}
/** {@inheritDoc} */
handle(params: MissingTranslationHandlerParams): Translation | Observable<Translation> {
const translated = this.getDefault(params.key);
if (translated !== undefined) {
return this.parser.interpolate(translated, params.interpolateParams);
}
return this.appHandler?.handle(params) ?? params.key;
}
}
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