Set up Storybook again

.eslintrc.cjs

@@ -15,6 +15,7 @@ module.exports = {
     "plugin:matrix-org/typescript",
     "prettier",
     "plugin:rxjs/recommended",
+    "plugin:storybook/recommended"
   ],
   parserOptions: {
     ecmaVersion: "latest",

.gitignore

@@ -30,3 +30,6 @@ yarn-error.log
 /playwright-report/
 /blob-report/
 /playwright/.cache/
+
+*storybook.log
+storybook-static

.storybook/main.ts

@@ -0,0 +1,8 @@
+import type { StorybookConfig } from "@storybook/react-vite";
+
+const config: StorybookConfig = {
+  stories: ["../src/**/*.stories.@(js|jsx|mjs|ts|tsx)"],
+  addons: ["@storybook/addon-docs"],
+  framework: "@storybook/react-vite",
+};
+export default config;

.storybook/manager.ts

@@ -0,0 +1,24 @@
+import { create } from "storybook/theming";
+import { addons } from "storybook/manager-api";
+
+addons.setConfig({
+  theme: create({
+    base: "light",
+    colorPrimary: "#1b1d22",
+    colorSecondary: "#0467dd",
+
+    // Typography
+    fontBase: '"Inter", sans-serif',
+    fontCode: '"Inconsolata", monospace',
+
+    // Text colors
+    textColor: "#1b1d22",
+    appBg: "#ffffff",
+    barBg: "#ffffff",
+
+    brandTitle: "Element Call",
+    brandUrl: "https://element.io/",
+    brandImage: "/src/icons/Logo.svg",
+    brandTarget: "_self",
+  }),
+});

.storybook/preview.tsx

@@ -0,0 +1,49 @@
+import type { Preview } from "@storybook/react-vite";
+import { TooltipProvider } from "@vector-im/compound-web";
+import i18n from "i18next";
+import { logger } from "matrix-js-sdk/lib/logger";
+
+import EN from "../locales/en/app.json";
+import { initReactI18next } from "react-i18next";
+import "../src/index.css";
+
+// Bare-minimum i18n config
+i18n
+  .use(initReactI18next)
+  .init({
+    lng: "en",
+    fallbackLng: "en",
+    supportedLngs: ["en"],
+    // We embed the translations, so that it never needs to fetch
+    resources: {
+      en: {
+        translation: EN,
+      },
+    },
+    interpolation: {
+      escapeValue: false, // React has built-in XSS protections
+    },
+  })
+  .catch((e) => logger.warn("Failed to init i18n for stories", e));
+
+const preview: Preview = {
+  parameters: {
+    layout: "centered",
+    controls: {
+      matchers: {
+        color: /(background|color)$/i,
+        date: /Date$/i,
+      },
+    },
+  },
+  tags: ["autodocs"],
+  decorators: [
+    (Story) => (
+      <TooltipProvider>
+        <Story />
+      </TooltipProvider>
+    ),
+  ],
+};
+
+export default preview;

package.json

@@ -33,7 +33,9 @@
     "test:playwright": "playwright test",
     "test:playwright:open": "yarn test:playwright --ui",
     "links:enable": "mv .links.disabled.yaml .links.yaml & touch .links.yaml",
-    "links:disable": "mv .links.yaml .links.disabled.yaml"
+    "links:disable": "mv .links.yaml .links.disabled.yaml",
+    "storybook": "storybook dev -p 6006",
+    "build-storybook": "storybook build"
   },
   "devDependencies": {
     "@babel/core": "^7.16.5",
@@ -57,6 +59,8 @@
     "@react-spring/web": "^10.0.0",
     "@sentry/react": "^8.0.0",
     "@sentry/vite-plugin": "^3.0.0",
+    "@storybook/addon-docs": "^10.3.3",
+    "@storybook/react-vite": "^10.3.3",
     "@stylistic/eslint-plugin": "^3.0.0",
     "@testing-library/dom": "^10.1.0",
     "@testing-library/jest-dom": "^6.6.3",
@@ -94,6 +98,7 @@
     "eslint-plugin-react": "^7.29.4",
     "eslint-plugin-react-hooks": "^5.0.0",
     "eslint-plugin-rxjs": "^5.0.3",
+    "eslint-plugin-storybook": "^10.3.3",
     "eslint-plugin-unicorn": "^56.0.0",
     "fetch-mock": "11.1.5",
     "global-jsdom": "^26.0.0",
@@ -123,6 +128,7 @@
     "react-use-measure": "^2.1.1",
     "rxjs": "^7.8.1",
     "sass": "^1.42.1",
+    "storybook": "^10.3.3",
     "typescript": "^5.8.3",
     "typescript-eslint-language-service": "^5.0.5",
     "unique-names-generator": "^4.6.0",

src/@types/mdx.d.ts

@@ -0,0 +1,12 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { JSX as ReactJSX } from "react";
+
+declare module "mdx/types.js" {
+  export import JSX = ReactJSX;
+}

vite.config.ts

@@ -66,17 +66,19 @@ export default ({
     );
   }
 
-  plugins.push(
-    createHtmlPlugin({
-      entry: "src/main.tsx",
-      inject: {
-        data: {
-          brand: env.VITE_PRODUCT_NAME || "Element Call",
-          packageType: process.env.VITE_PACKAGE,
+  if (!process.env.STORYBOOK) {
+    plugins.push(
+      createHtmlPlugin({
+        entry: "src/main.tsx",
+        inject: {
+          data: {
+            brand: env.VITE_PRODUCT_NAME || "Element Call",
+            packageType: process.env.VITE_PACKAGE,
+          },
         },
-      },
-    }),
-  );
+      }),
+    );
+  }
 
   // The crypto WASM module is imported dynamically. Since it's common
   // for developers to use a linked copy of matrix-js-sdk or Rust