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