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import * as React from 'react';
import Lottie from 'react-lottie';
import styled from 'styled-components';
import { media } from 'ts/variables';
interface AnimationProps {
animationData: object;
width: number;
height: number;
}
interface AnimationState {
width?: number;
height?: number;
}
class Animation extends React.PureComponent<AnimationProps, AnimationState> {
timeout = null as any;
constructor(props: AnimationProps) {
super(props);
this.state = {
height: undefined,
width: undefined,
};
this.handleResize = this.handleResize.bind(this);
this.updateAnimationSize = this.updateAnimationSize.bind(this);
}
componentDidMount() {
this.updateAnimationSize();
window.addEventListener('resize', this.handleResize);
}
componentWillUnmount() {
window.removeEventListener('resize', this.handleResize);
}
handleResize() {
clearTimeout(this.timeout);
this.timeout = setTimeout(this.updateAnimationSize, 200);
}
updateAnimationSize() {
const windowWidth = window.innerWidth;
let width = undefined;
let height = undefined;
if (windowWidth < 1200) {
const maxWidth = windowWidth + 250;
const ratio = maxWidth / this.props.width;
height = Math.round(this.props.height * ratio);
width = Math.round(this.props.width * ratio);
}
this.setState({ width, height });
}
render() {
let { animationData } = this.props;
const height = this.state.height || this.props.height;
const width = this.state.width || this.props.width;
return (
<Container height={height}>
<InnerContainer>
<Lottie
width={width}
height={height}
options={{
loop: true,
autoplay: true,
animationData: animationData,
}}
/>
</InnerContainer>
</Container>
);
}
}
const Container = styled.div`
width: 100%;
height: ${(props: { height: number }) => props.height}px;
position: absolute;
top: 40%;
left: 0;
z-index: -1;
overflow: hidden;
${media.medium`
top: auto;
bottom: -3rem;
`};
`;
const InnerContainer = styled.div`
position: absolute;
top: 0;
left: 50%;
transform: translateX(-50%);
`;
export default Animation;
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