get all available languages

Author: Alberto Iannaccone

Diff for: arduino-ide-extension/src/node/arduino-ide-backend-module.ts

@@ -82,7 +82,7 @@ import {
 } from '../common/protocol/authentication-service';
 import { ArduinoFirmwareUploaderImpl } from './arduino-firmware-uploader-impl';
 import { PlotterBackendContribution } from './plotter/plotter-backend-contribution';
-import { ArduinoLocalizationContribution } from './arduino-localization-contribution';
+import { ArduinoLocalizationContribution } from './i18n/arduino-localization-contribution';
 import { LocalizationContribution } from '@theia/core/lib/node/i18n/localization-contribution';
 import { MonitorManagerProxyImpl } from './monitor-manager-proxy-impl';
 import { MonitorManager, MonitorManagerName } from './monitor-manager';
@@ -102,6 +102,8 @@ import WebSocketProviderImpl from './web-socket/web-socket-provider-impl';
 import { WebSocketProvider } from './web-socket/web-socket-provider';
 import { ClangFormatter } from './clang-formatter';
 import { FormatterPath } from '../common/protocol/formatter';
+import { LocalizationBackendContribution } from './i18n/localization-backend-contribution';
+import { LocalizationBackendContribution as TheiaLocalizationBackendContribution } from '@theia/core/lib/node/i18n/localization-backend-contribution';
 
 export default new ContainerModule((bind, unbind, isBound, rebind) => {
   bind(BackendApplication).toSelf().inSingletonScope();
@@ -395,4 +397,8 @@ export default new ContainerModule((bind, unbind, isBound, rebind) => {
   bind(BackendApplicationContribution).toService(PlotterBackendContribution);
   bind(ArduinoLocalizationContribution).toSelf().inSingletonScope();
   bind(LocalizationContribution).toService(ArduinoLocalizationContribution);
+  bind(LocalizationBackendContribution).toSelf().inSingletonScope();
+  rebind(TheiaLocalizationBackendContribution).toService(
+    LocalizationBackendContribution
+  );
 });

Diff for: arduino-ide-extension/src/node/arduino-localization-contribution.ts renamed to arduino-ide-extension/src/node/i18n/arduino-localization-contribution.ts

@@ -0,0 +1,19 @@
+import { injectable } from '@theia/core/shared/inversify';
+import { LocalizationBackendContribution as TheiaLocalizationBackendContribution } from '@theia/core/lib/node/i18n/localization-backend-contribution';
+import * as express from 'express';
+
+@injectable()
+export class LocalizationBackendContribution extends TheiaLocalizationBackendContribution {
+  override configure(app: express.Application): void {
+    app.get('/i18n/:locale', (req, res) => {
+      let locale = req.params.locale;
+      locale = this.localizationProvider
+        .getAvailableLanguages(true) // passing true is necessary to retrieve all the languages: https://github.com/eclipse-theia/theia/issues/11471
+        .some((e) => e.languageId === locale)
+        ? locale
+        : 'en';
+      this.localizationProvider.setCurrentLanguage(locale);
+      res.send(this.localizationProvider.loadLocalization(locale));
+    });
+  }
+}