mastodon/app/javascript/flavours/glitch/components/animated_number.js
Eugen Rochko e36d0a98cc [Glitch] Add streaming API updates for announcements being modified or deleted
Port b9d74d4076 to glitch-soc

Signed-off-by: Thibaut Girka <thib@sitedethib.com>
2020-01-27 16:01:06 +01:00

49 lines
1.3 KiB
JavaScript

import React from 'react';
import PropTypes from 'prop-types';
import { FormattedNumber } from 'react-intl';
import TransitionMotion from 'react-motion/lib/TransitionMotion';
import spring from 'react-motion/lib/spring';
import { reduceMotion } from 'flavours/glitch/util/initial_state';
export default class AnimatedNumber extends React.PureComponent {
static propTypes = {
value: PropTypes.number.isRequired,
};
willEnter () {
return { y: -1 };
}
willLeave () {
return { y: spring(1, { damping: 35, stiffness: 400 }) };
}
render () {
const { value } = this.props;
if (reduceMotion) {
return <FormattedNumber value={value} />;
}
const styles = [{
key: `${value}`,
data: value,
style: { y: spring(0, { damping: 35, stiffness: 400 }) },
}];
return (
<TransitionMotion styles={styles} willEnter={this.willEnter} willLeave={this.willLeave}>
{items => (
<span className='animated-number'>
{items.map(({ key, data, style }) => (
<span key={key} style={{ position: style.y > 0 ? 'absolute' : 'static', transform: `translateY(${style.y * 100}%)` }}><FormattedNumber value={data} /></span>
))}
</span>
)}
</TransitionMotion>
);
}
}