nyastodon/app/javascript/mastodon/components/relative_timestamp.tsx
2023-05-01 00:51:31 +02:00

203 lines
7 KiB
TypeScript

import React from 'react';
import { injectIntl, defineMessages, InjectedIntl } from 'react-intl';
const messages = defineMessages({
today: { id: 'relative_time.today', defaultMessage: 'today' },
just_now: { id: 'relative_time.just_now', defaultMessage: 'now' },
just_now_full: { id: 'relative_time.full.just_now', defaultMessage: 'just now' },
seconds: { id: 'relative_time.seconds', defaultMessage: '{number}s' },
seconds_full: { id: 'relative_time.full.seconds', defaultMessage: '{number, plural, one {# second} other {# seconds}} ago' },
minutes: { id: 'relative_time.minutes', defaultMessage: '{number}m' },
minutes_full: { id: 'relative_time.full.minutes', defaultMessage: '{number, plural, one {# minute} other {# minutes}} ago' },
hours: { id: 'relative_time.hours', defaultMessage: '{number}h' },
hours_full: { id: 'relative_time.full.hours', defaultMessage: '{number, plural, one {# hour} other {# hours}} ago' },
days: { id: 'relative_time.days', defaultMessage: '{number}d' },
days_full: { id: 'relative_time.full.days', defaultMessage: '{number, plural, one {# day} other {# days}} ago' },
moments_remaining: { id: 'time_remaining.moments', defaultMessage: 'Moments remaining' },
seconds_remaining: { id: 'time_remaining.seconds', defaultMessage: '{number, plural, one {# second} other {# seconds}} left' },
minutes_remaining: { id: 'time_remaining.minutes', defaultMessage: '{number, plural, one {# minute} other {# minutes}} left' },
hours_remaining: { id: 'time_remaining.hours', defaultMessage: '{number, plural, one {# hour} other {# hours}} left' },
days_remaining: { id: 'time_remaining.days', defaultMessage: '{number, plural, one {# day} other {# days}} left' },
});
const dateFormatOptions = {
hour12: false,
year: 'numeric',
month: 'short',
day: '2-digit',
hour: '2-digit',
minute: '2-digit',
} as const;
const shortDateFormatOptions = {
month: 'short',
day: 'numeric',
} as const;
const SECOND = 1000;
const MINUTE = 1000 * 60;
const HOUR = 1000 * 60 * 60;
const DAY = 1000 * 60 * 60 * 24;
const MAX_DELAY = 2147483647;
const selectUnits = (delta: number) => {
const absDelta = Math.abs(delta);
if (absDelta < MINUTE) {
return 'second';
} else if (absDelta < HOUR) {
return 'minute';
} else if (absDelta < DAY) {
return 'hour';
}
return 'day';
};
const getUnitDelay = (units: string) => {
switch (units) {
case 'second':
return SECOND;
case 'minute':
return MINUTE;
case 'hour':
return HOUR;
case 'day':
return DAY;
default:
return MAX_DELAY;
}
};
export const timeAgoString = (intl: InjectedIntl, date: Date, now: number, year: number, timeGiven: boolean, short?: boolean) => {
const delta = now - date.getTime();
let relativeTime;
if (delta < DAY && !timeGiven) {
relativeTime = intl.formatMessage(messages.today);
} else if (delta < 10 * SECOND) {
relativeTime = intl.formatMessage(short ? messages.just_now : messages.just_now_full);
} else if (delta < 7 * DAY) {
if (delta < MINUTE) {
relativeTime = intl.formatMessage(short ? messages.seconds : messages.seconds_full, { number: Math.floor(delta / SECOND) });
} else if (delta < HOUR) {
relativeTime = intl.formatMessage(short ? messages.minutes : messages.minutes_full, { number: Math.floor(delta / MINUTE) });
} else if (delta < DAY) {
relativeTime = intl.formatMessage(short ? messages.hours : messages.hours_full, { number: Math.floor(delta / HOUR) });
} else {
relativeTime = intl.formatMessage(short ? messages.days : messages.days_full, { number: Math.floor(delta / DAY) });
}
} else if (date.getFullYear() === year) {
relativeTime = intl.formatDate(date, shortDateFormatOptions);
} else {
relativeTime = intl.formatDate(date, { ...shortDateFormatOptions, year: 'numeric' });
}
return relativeTime;
};
const timeRemainingString = (intl: InjectedIntl, date: Date, now: number, timeGiven = true) => {
const delta = date.getTime() - now;
let relativeTime;
if (delta < DAY && !timeGiven) {
relativeTime = intl.formatMessage(messages.today);
} else if (delta < 10 * SECOND) {
relativeTime = intl.formatMessage(messages.moments_remaining);
} else if (delta < MINUTE) {
relativeTime = intl.formatMessage(messages.seconds_remaining, { number: Math.floor(delta / SECOND) });
} else if (delta < HOUR) {
relativeTime = intl.formatMessage(messages.minutes_remaining, { number: Math.floor(delta / MINUTE) });
} else if (delta < DAY) {
relativeTime = intl.formatMessage(messages.hours_remaining, { number: Math.floor(delta / HOUR) });
} else {
relativeTime = intl.formatMessage(messages.days_remaining, { number: Math.floor(delta / DAY) });
}
return relativeTime;
};
type Props = {
intl: InjectedIntl;
timestamp: string;
year: number;
futureDate?: boolean;
short?: boolean;
}
type States = {
now: number;
}
class RelativeTimestamp extends React.Component<Props, States> {
state = {
now: this.props.intl.now(),
};
static defaultProps = {
year: (new Date()).getFullYear(),
short: true,
};
_timer: number | undefined;
shouldComponentUpdate (nextProps: Props, nextState: States) {
// As of right now the locale doesn't change without a new page load,
// but we might as well check in case that ever changes.
return this.props.timestamp !== nextProps.timestamp ||
this.props.intl.locale !== nextProps.intl.locale ||
this.state.now !== nextState.now;
}
UNSAFE_componentWillReceiveProps (nextProps: Props) {
if (this.props.timestamp !== nextProps.timestamp) {
this.setState({ now: this.props.intl.now() });
}
}
componentDidMount () {
this._scheduleNextUpdate(this.props, this.state);
}
UNSAFE_componentWillUpdate (nextProps: Props, nextState: States) {
this._scheduleNextUpdate(nextProps, nextState);
}
componentWillUnmount () {
window.clearTimeout(this._timer);
}
_scheduleNextUpdate (props: Props, state: States) {
window.clearTimeout(this._timer);
const { timestamp } = props;
const delta = (new Date(timestamp)).getTime() - state.now;
const unitDelay = getUnitDelay(selectUnits(delta));
const unitRemainder = Math.abs(delta % unitDelay);
const updateInterval = 1000 * 10;
const delay = delta < 0 ? Math.max(updateInterval, unitDelay - unitRemainder) : Math.max(updateInterval, unitRemainder);
this._timer = window.setTimeout(() => {
this.setState({ now: this.props.intl.now() });
}, delay);
}
render () {
const { timestamp, intl, year, futureDate, short } = this.props;
const timeGiven = timestamp.includes('T');
const date = new Date(timestamp);
const relativeTime = futureDate ? timeRemainingString(intl, date, this.state.now, timeGiven) : timeAgoString(intl, date, this.state.now, year, timeGiven, short);
return (
<time dateTime={timestamp} title={intl.formatDate(date, dateFormatOptions)}>
{relativeTime}
</time>
);
}
}
export default injectIntl(RelativeTimestamp);