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outline/app/components/LocaleTime.js
2021-02-21 20:42:01 -08:00

91 lines
2.0 KiB
JavaScript

// @flow
import distanceInWordsToNow from "date-fns/distance_in_words_to_now";
import format from "date-fns/format";
import * as React from "react";
import Tooltip from "components/Tooltip";
import useUserLocale from "hooks/useUserLocale";
const locales = {
en: require(`date-fns/locale/en`),
de: require(`date-fns/locale/de`),
es: require(`date-fns/locale/es`),
fr: require(`date-fns/locale/fr`),
it: require(`date-fns/locale/it`),
ko: require(`date-fns/locale/ko`),
pt: require(`date-fns/locale/pt`),
zh: require(`date-fns/locale/zh_cn`),
ru: require(`date-fns/locale/ru`),
};
let callbacks = [];
// This is a shared timer that fires every minute, used for
// updating all Time components across the page all at once.
setInterval(() => {
callbacks.forEach((cb) => cb());
}, 1000 * 60);
function eachMinute(fn) {
callbacks.push(fn);
return () => {
callbacks = callbacks.filter((cb) => cb !== fn);
};
}
type Props = {
dateTime: string,
children?: React.Node,
tooltipDelay?: number,
addSuffix?: boolean,
shorten?: boolean,
};
function LocaleTime({
addSuffix,
children,
dateTime,
shorten,
tooltipDelay,
}: Props) {
const userLocale = useUserLocale();
const [_, setMinutesMounted] = React.useState(0); // eslint-disable-line no-unused-vars
const callback = React.useRef();
React.useEffect(() => {
callback.current = eachMinute(() => {
setMinutesMounted((state) => ++state);
});
return () => {
if (callback.current) {
callback.current();
}
};
}, []);
let content = distanceInWordsToNow(dateTime, {
addSuffix,
locale: userLocale ? locales[userLocale] : undefined,
});
if (shorten) {
content = content
.replace("about", "")
.replace("less than a minute ago", "just now")
.replace("minute", "min");
}
return (
<Tooltip
tooltip={format(dateTime, "MMMM Do, YYYY h:mm a")}
delay={tooltipDelay}
placement="bottom"
>
<time dateTime={dateTime}>{children || content}</time>
</Tooltip>
);
}
export default LocaleTime;