react-mobx-i18n

Info: This is a fork from react-mobx-translatable due to other opinions about the approach.

Make React components translatable using MobX. Can be used both on the server (SSR) and in the browser.

Note: This plugin depends on mobx-react features that are currently marked as experimental: Provider and inject.

Installation

npm install --save react-mobx-i18n

Usage

Checklist (see the example for more details)

• Setup the i18n object in store
• Initialize the i18n-harmony lib and translatable
• Wrap your components with Provider component
• Set the @translatable decorator on your components
• Call this.t(translationKey, options) from the component
• To change the language, change the locale variable in the store

Methods

init(injectFn)

Method receives injectFn - function that maps the i18n object from the store

• The function receives the whole store object (from Provider)
• The function should return an object that contains an i18n key with the i18n object from store (see the example)
• Default: (store) => {i18n: i18n.store}
• If you have the i18n object in the root of the store (the default function can map the value), you don't need to call init

translatable(Component|String[])

Method can receive either an array of strings or a React component.

• Array of strings - Used for connecting the store from Provider to the component. Translatable is returning a new function that accepts a React component.
• React component - The function will wrap the passed component

In both cases, the wrapped component will also be an observer. If using with other decorators, translatable should be the innermost one.

Example

The example assumes you're using the following:

• ES2015
• object rest spread
• decorators

This is however not a requirement.

Initialize store, i18n, and react-mobx-i18n

import {observable} from 'mobx';
import i18n from 'i18n-harmony';
import {init} from 'react-mobx-i18n';
 
const defaultLocale = 'en'; // Can be based on browser language or user selection (localStorage, cookies)
 
const store = {
  i18n: observable({locale: defaultLocale})
};
 
// For details, see i18n-harmony: https://github.com/DarkoKukovec/i18n-harmony
i18n.init({
  translations: {
    en: {hello: 'Hello world!'}
  }
});
 
init((store) => ({i18n: store.i18n}));

Wrap your React components inside of the Provider component and pass it the store

import {Provider} from 'mobx-react';
import store from './store';
 
ReactDOM.render(<Provider {...store}>
  <Router {...renderProps} />
</Provider>, document.getElementById('app'));

Translatable component

import {Component} from 'react';
import {translatable} from 'react-mobx-i18n';
 
@translatable
export default class MyComponent extends Component {
  render() {
    return <div>{this.t('hello')}</div>
  }
}

has method

import {Component} from 'react';
import {translatable} from 'translatable';
 
@translatable
export default class MyComponent extends Component {
  render() {
    return <div>{this.has('hello') && this.t('hello')}</div>
  }
}

License

MIT License