Spellcheck: add language changer & swap position with paste/cut/copy

src/main/mainWindow.ts

@@ -13,6 +13,7 @@ import {
     MenuItemConstructorOptions,
     nativeTheme,
     screen,
+    session,
     Tray
 } from "electron";
 import { rm } from "fs/promises";
@@ -360,12 +361,27 @@ function initSettingsListeners(win: BrowserWindow) {
     addSettingsListener("enableMenu", enabled => {
         win.setAutoHideMenuBar(enabled ?? false);
     });
+
+    addSettingsListener("spellCheckLanguages", languages => initSpellCheckLanguages(win, languages));
+}
+
+async function initSpellCheckLanguages(win: BrowserWindow, languages?: string[]) {
+    languages ??= await win.webContents.executeJavaScript("[...new Set(navigator.languages)]").catch(() => []);
+    if (!languages) return;
+
+    const ses = session.defaultSession;
+
+    const available = ses.availableSpellCheckerLanguages;
+    const applicable = languages.filter(l => available.includes(l)).slice(0, 5);
+    if (applicable.length) ses.setSpellCheckerLanguages(applicable);
 }
 
 function initSpellCheck(win: BrowserWindow) {
     win.webContents.on("context-menu", (_, data) => {
         win.webContents.send(IpcEvents.SPELLCHECK_RESULT, data.misspelledWord, data.dictionarySuggestions);
     });
+
+    initSpellCheckLanguages(win, Settings.store.spellCheckLanguages);
 }
 
 function createMainWindow() {