mv element.io @types __mocks__/ debian docker module_system/ playwright res src test webapp Dockerfile .dockerignore .eslintignore .stylelintrc.cjs babel.config.cjs recorder-worklet-loader.cjs .modernizr.json components.json config.json config.sample.json package.json project.json tsconfig.json tsconfig.module_system.json jest.config.ts playwright.config.ts webpack.config.ts build_config.sample.yaml apps/web/

mkdir apps/web/scripts
mv scripts/{cleanup.sh,ci_package.sh,copy-res.ts,deploy.py,package.sh} apps/web/scripts

And a couple of gitignore tweaks

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

apps/web/src/TimezoneHandler.ts

@@ -0,0 +1,47 @@
+/*
+Copyright 2024 New Vector Ltd.
+Copyright 2024 The Matrix.org Foundation C.I.C.
+
+SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE files in the repository root for full details.
+*/
+
+import { SettingLevel } from "./settings/SettingLevel";
+import SettingsStore from "./settings/SettingsStore";
+
+export const USER_TIMEZONE_KEY = "userTimezone";
+
+/**
+ * Returning `undefined` ensure that if unset the browser default will be used in `DateTimeFormat`.
+ * @returns The user specified timezone or `undefined`
+ */
+export function getUserTimezone(): string | undefined {
+    const tz = SettingsStore.getValueAt(SettingLevel.DEVICE, USER_TIMEZONE_KEY);
+    return tz || undefined;
+}
+
+/**
+ * Set in the settings the given timezone
+ * @timezone
+ */
+export function setUserTimezone(timezone: string): Promise<void> {
+    return SettingsStore.setValue(USER_TIMEZONE_KEY, null, SettingLevel.DEVICE, timezone);
+}
+
+/**
+ * Return all the available timezones
+ */
+export function getAllTimezones(): string[] {
+    return Intl.supportedValuesOf("timeZone");
+}
+
+/**
+ * Return the current timezone in a short human readable way
+ */
+export function shortBrowserTimezone(): string {
+    return (
+        new Intl.DateTimeFormat(undefined, { timeZoneName: "short" })
+            .formatToParts(new Date())
+            .find((x) => x.type === "timeZoneName")?.value ?? "GMT"
+    );
+}