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[Glitch] Change number animations direction based on decrease or increase

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Port 10e209d8e0 to glitch-soc

Signed-off-by: Thibaut Girka <thib@sitedethib.com>
This commit is contained in:
Eugen Rochko 2020-01-27 11:04:11 +01:00 committed by Thibaut Girka
parent b0139dcf5e
commit cf230d551f
1 changed files with 22 additions and 5 deletions
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27
app/javascript/flavours/glitch/components/animated_number.js
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@ -11,16 +11,33 @@ export default class AnimatedNumber extends React.PureComponent {
value: PropTypes.number.isRequired,
};
willEnter () {
return { y: -1 };
state = {
direction: 1,
};
componentWillReceiveProps (nextProps) {
if (nextProps.value > this.props.value) {
this.setState({ direction: 1 });
} else if (nextProps.value < this.props.value) {
this.setState({ direction: -1 });
}
}
willLeave () {
return { y: spring(1, { damping: 35, stiffness: 400 }) };
willEnter = () => {
const { direction } = this.state;
return { y: -1 * direction };
}
willLeave = () => {
const { direction } = this.state;
return { y: spring(1 * direction, { damping: 35, stiffness: 400 }) };
}
render () {
const { value } = this.props;
const { direction } = this.state;
if (reduceMotion) {
return <FormattedNumber value={value} />;
@ -37,7 +54,7 @@ export default class AnimatedNumber extends React.PureComponent {
{items => (
<span className='animated-number'>
{items.map(({ key, data, style }) => (
<span key={key} style={{ position: style.y > 0 ? 'absolute' : 'static', transform: `translateY(${style.y * 100}%)` }}><FormattedNumber value={data} /></span>
<span key={key} style={{ position: (direction * style.y) > 0 ? 'absolute' : 'static', transform: `translateY(${style.y * 100}%)` }}><FormattedNumber value={data} /></span>
))}
</span>
)}