i18n: Add test i18n framework.

app/main/menu.js

@@ -10,6 +10,8 @@ const ConfigUtil = require(__dirname + '/../renderer/js/utils/config-util.js');
 
 const appName = app.getName();
 
+const i18n = require(__dirname + '/../translations/i18n');
+
 class AppMenu {
 	getHistorySubmenu() {
 		return [{
@@ -246,15 +248,15 @@ class AppMenu {
 		}, {
 			label: 'Edit',
 			submenu: [{
-				role: 'undo'
+				role: 'undo', label: i18n._('Undo')
 			}, {
-				role: 'redo'
+				role: 'redo', label: i18n._('Redo')
 			}, {
 				type: 'separator'
 			}, {
-				role: 'cut'
+				role: 'cut', label: i18n._('Cut')
 			}, {
-				role: 'copy'
+				role: 'copy', label: i18n._('Copy')
 			}, {
 				role: 'paste'
 			}, {
@@ -334,11 +336,11 @@ class AppMenu {
 				accelerator: 'Ctrl+Q'
 			}]
 		}, {
-			label: 'Edit',
+			label: i18n.__('Edit'),
 			submenu: [{
-				role: 'undo'
+				role: 'undo', label: i18n.__('Undo')
 			}, {
-				role: 'redo'
+				role: 'redo', label: i18n.__('Redo')
 			}, {
 				type: 'separator'
 			}, {

app/renderer/js/preload.js

@@ -41,6 +41,7 @@ document.addEventListener('DOMContentLoaded', () => {
 	if (serverLanguage) {
 		// Set spellcheker language
 		ConfigUtil.setConfigItem('spellcheckerLanguage', serverLanguage);
+
 		// Init spellchecker
 		SetupSpellChecker.init();
 	}

app/translations/de.json

@@ -0,0 +1,4 @@
+{
+    "Edit": "Redigera",
+    "Undo": "Ångra"
+}

app/translations/en.json

@@ -0,0 +1,4 @@
+{
+    "Edit": "Edit",
+    "Undo": "Undo"
+   }

app/translations/i18n.js

@@ -0,0 +1,34 @@
+const path = require('path');
+const electron = require('electron');
+const fs = require('fs');
+
+const ConfigUtil = require(__dirname + '/../renderer/js/utils/config-util.js');
+
+class i18n {
+	constructor() {
+		this.app = electron.app ? electron.app : electron.remote.app;
+		this.appLanguage = ConfigUtil.getConfigItem('spellcheckerLanguage');
+		this.appLocale = path.join(__dirname, this.appLanguage + '.json');
+
+		if (fs.existsSync(this.appLocale)) {
+			this.loadedLanguage = JSON.parse(fs.readFileSync(this.appLocale, 'utf8'));
+			console.log('translate into', this.appLanguage);
+			console.log(this.loadedLanguage);
+		} else {
+			this.loadedLanguage = JSON.parse(fs.readFileSync(path.join(__dirname, 'en.json'), 'utf8'));
+			console.log('no lang found');
+			console.log(this.loadedLanguage);
+		}
+	}
+
+	_(phrase) {
+		let translation = this.loadedLanguage[phrase];
+		if (translation === undefined) {
+			translation = phrase;
+		}
+		return translation;
+	}
+}
+
+// eslint-disable-next-line new-cap
+module.exports = new i18n();