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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 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | 4x 4x | import Observer from "../../../utils/observer/Observer";
export default class IntlProvider extends Observer {
constructor(
/**
* The current language set in the provider
*/
public lang: string,
/**
* The data with the translation
*/
public data: any
) {
super('handleLanguageChanged');
}
setLanguage(lang: string) {
if (this.lang !== lang) {
this.lang = lang;
this.notify();
}
}
/**
* Retrieves the translated text or returns a string with the key value if the translation was not found
*/
getTranslation(lang: string | undefined, key: string): string {
// If the lang is not provided use the current language of the provider
const lng = lang || this.lang;
const data = this.data[lng];
if (data === undefined) { // There are no translations for this language
console.error(`There are no translations for language: [${lng}]. (key was [${key}]).`);
return undefined;
}
const translation = data[key];
if (translation === undefined) { // There is no translation for this key in this language
console.error(`Missing translation for key: [${key}] in language: [${lng}].`);
return undefined;
}
return translation;
}
}
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