31 lines
1.1 KiB
TypeScript
31 lines
1.1 KiB
TypeScript
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/*
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* Detects navigator locale 24h time preference
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* It works by checking whether hour output contains AM ('1 AM' or '01 h')
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* based on the user's preferred language
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* defaults to 'en-US' (12h) if no navigator language is found
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*/
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import { localStorage } from "@calcom/lib/webstorage";
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export const isBrowserLocale24h = () => {
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const localStorageTimeFormat = localStorage.getItem("timeOption.is24hClock");
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// If time format is already stored in the browser then retrieve and return early
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if (localStorageTimeFormat === "true") {
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return true;
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} else if (localStorageTimeFormat === "false") {
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return false;
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}
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let locale = "en-US";
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if (typeof window !== "undefined" && navigator) locale = window.navigator?.language;
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if (!new Intl.DateTimeFormat(locale, { hour: "numeric" }).format(0).match(/M/)) {
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localStorage.setItem("timeOption.is24hClock", "false");
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return false;
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} else {
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localStorage.setItem("timeOption.is24hClock", "true");
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return true;
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}
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};
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export const detectBrowserTimeFormat = isBrowserLocale24h() ? "H:mm" : "h:mma";
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