3 files changed, 95 insertions, 0 deletions
diff --git a/comm/mail/components/storybook/.storybook/main.js b/comm/mail/components/storybook/.storybook/main.js
new file mode 100644
index 0000000000..743243b4a0
--- /dev/null
+++ b/comm/mail/components/storybook/.storybook/main.js
@@ -0,0 +1,47 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+/* eslint-env node */
+
+const path = require("path");
+
+// ./mach environment --format json
+// topobjdir should be the build location
+
+module.exports = {
+  stories: [
+    "../stories/**/*.stories.mdx",
+    "../stories/**/*.stories.@(mjs|jsx|ts|tsx)",
+  ],
+  addons: ["@storybook/addon-links", "@storybook/addon-essentials"],
+  framework: "@storybook/web-components",
+  webpackFinal: async (config, { configType }) => {
+    // `configType` has a value of 'DEVELOPMENT' or 'PRODUCTION'
+    // You can change the configuration based on that.
+    // 'PRODUCTION' is used when building the static version of storybook.
+
+    // Make whatever fine-grained changes you need
+    const projectRoot = path.resolve(__dirname, "../../../../");
+    config.resolve.alias.mail = `${projectRoot}/mail`;
+
+    config.module.rules.push({
+      test: /\.ftl$/,
+      type: "asset/source",
+    });
+
+    config.optimization = {
+      splitChunks: false,
+      runtimeChunk: false,
+      sideEffects: false,
+      usedExports: false,
+      concatenateModules: false,
+      minimizer: [],
+    };
+
+    // Return the altered config
+    return config;
+  },
+  core: {
+    builder: "webpack5",
+  },
+};
diff --git a/comm/mail/components/storybook/.storybook/preview-head.html b/comm/mail/components/storybook/.storybook/preview-head.html
new file mode 100644
index 0000000000..90b30870b9
--- /dev/null
+++ b/comm/mail/components/storybook/.storybook/preview-head.html
@@ -0,0 +1,5 @@
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this file,
+   - You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<link rel="stylesheet" href="chrome://global/skin/global.css">
diff --git a/comm/mail/components/storybook/.storybook/preview.mjs b/comm/mail/components/storybook/.storybook/preview.mjs
new file mode 100644
index 0000000000..6b654c6049
--- /dev/null
+++ b/comm/mail/components/storybook/.storybook/preview.mjs
@@ -0,0 +1,43 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { DOMLocalization } from "@fluent/dom";
+import { FluentBundle, FluentResource } from "@fluent/bundle";
+
+// Base Fluent set up.
+let storybookBundle = new FluentBundle("en-US");
+let loadedResources = new Set();
+function* generateBundles() {
+  yield* [storybookBundle];
+}
+document.l10n = new DOMLocalization([], generateBundles);
+document.l10n.connectRoot(document.documentElement);
+
+// Any fluent imports should go through MozXULElement.insertFTLIfNeeded.
+window.MozXULElement = {
+  async insertFTLIfNeeded(name) {
+    if (loadedResources.has(name)) {
+      return;
+    }
+    //TODO might have to dynamically change this depending on where a component
+    // lives in the tree (for example for calendar or mailnews).
+    // eslint-disable-next-line no-unsanitized/method
+    let imported = await import(
+      /* webpackInclude: /.*[\/\\].*\.ftl/ */
+      `mail/locales/en-US/${name}`
+    );
+    let ftlContents = imported.default;
+
+    if (loadedResources.has(name)) {
+      // Seems possible we've attempted to load this twice before the first call
+      // resolves, so once the first load is complete we can abandon the others.
+      return;
+    }
+
+    let ftlResource = new FluentResource(ftlContents);
+    storybookBundle.addResource(ftlResource);
+    loadedResources.add(name);
+    document.l10n.translateRoots();
+  },
+};