feat(client): display list of languages

src/public/app/services/i18n.ts

@@ -1,10 +1,21 @@
 import options from "./options.js";
 import i18next from "i18next";
 import i18nextHttpBackend from "i18next-http-backend";
+import server from "./server.js";
+
+let locales: Locale[] | null;
+
+// TODO: Deduplicate with server.
+export interface Locale {
+    id: string;
+    name: string;
+}
 
 export async function initLocale() {
     const locale = (options.get("locale") as string) || "en";
 
+    locales = await server.get<Locale[]>("options/locales");
+
     await i18next.use(i18nextHttpBackend).init({
         lng: locale,
         fallbackLng: "en",
@@ -15,5 +26,13 @@ export async function initLocale() {
     });
 }
 
+export function getAvailableLocales() {
+    if (!locales) {
+        throw new Error("Tried to load list of locales, but localization is not yet initialized.");
+    }
+
+    return locales;
+}
+
 export const t = i18next.t;
 export const getCurrentLanguage = () => i18next.language;

src/public/app/widgets/note_language.ts

@@ -1,5 +1,6 @@
 import { Dropdown } from "bootstrap";
 import NoteContextAwareWidget from "./note_context_aware_widget.js";
+import { getAvailableLocales, type Locale } from "../services/i18n.js";
 
 const TPL = `\
 <div class="dropdown note-language-widget">
@@ -21,10 +22,28 @@ export default class NoteLanguageWidget extends NoteContextAwareWidget {
     doRender() {
         this.$widget = $(TPL);
         this.dropdown = Dropdown.getOrCreateInstance(this.$widget.find("[data-bs-toggle='dropdown']")[0]);
+        this.$widget.on("show.bs.dropdown", () => this.renderDropdown());
 
         this.$noteLanguageDropdown = this.$widget.find(".note-language-dropdown")
         this.$noteLanguageButton = this.$widget.find(".note-language-button");
         this.$noteLanguageDesc = this.$widget.find(".note-language-desc");
     }
 
+    renderDropdown() {
+        this.$noteLanguageDropdown.empty();
+
+        if (!this.note) {
+            return;
+        }
+
+        for (const locale of getAvailableLocales()) {
+            const $title = $("<span>").text(locale.name);
+            const $link = $('<a class="dropdown-item">')
+                .attr("data-language", locale.id)
+                .append('<span class="check">&check;</span> ')
+                .append($title);
+            this.$noteLanguageDropdown.append($link);
+        }
+    }
+
 }

src/public/app/widgets/type_widgets/options/appearance/i18n.ts

@@ -1,7 +1,7 @@
 import OptionsWidget from "../options_widget.js";
 import server from "../../../../services/server.js";
 import utils from "../../../../services/utils.js";
-import { t } from "../../../../services/i18n.js";
+import { getAvailableLocales, t, type Locale } from "../../../../services/i18n.js";
 import type { OptionMap } from "../../../../../../services/options_interface.js";
 
 const TPL = `
@@ -25,12 +25,6 @@ const TPL = `
 </div>
 `;
 
-// TODO: Deduplicate with server.
-export interface Locale {
-    id: string;
-    name: string;
-}
-
 export default class LocalizationOptions extends OptionsWidget {
 
     private $localeSelect!: JQuery<HTMLElement>;
@@ -53,7 +47,7 @@ export default class LocalizationOptions extends OptionsWidget {
     }
 
     async optionsLoaded(options: OptionMap) {
-        const availableLocales = await server.get<Locale[]>("options/locales");
+        const availableLocales = getAvailableLocales();
         this.$localeSelect.empty();
 
         for (const locale of availableLocales) {

src/public/app/widgets/type_widgets/options/i18n/language.ts

@@ -1,7 +1,6 @@
 import OptionsWidget from "../options_widget.js";
 import type { OptionMap } from "../../../../../../services/options_interface.js";
-import server from "../../../../services/server.js";
+import { getAvailableLocales } from "../../../../services/i18n.js";
-import type { Locale } from "../appearance/i18n.js";
 
 const TPL = `
 <div class="options-section">
@@ -42,7 +41,7 @@ export default class LanguageOptions extends OptionsWidget {
     }
 
     async optionsLoaded(options: OptionMap) {
-        const availableLocales = await server.get<Locale[]>("options/locales");
+        const availableLocales = getAvailableLocales();
         const enabledLanguages = (JSON.parse(options.languages) as string[]);
 
         this.$languagesContainer.empty();