46 lines
1004 B
JavaScript
46 lines
1004 B
JavaScript
import React from 'react';
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import PropTypes from 'prop-types';
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class ImageLoader extends React.PureComponent {
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static propTypes = {
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src: PropTypes.string.isRequired,
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}
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state = {
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loading: true,
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error: false,
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}
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componentWillMount() {
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this.loadImage(this.props.src);
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}
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componentWillReceiveProps(props) {
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this.loadImage(props.src);
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}
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loadImage(src) {
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const image = new Image();
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image.onerror = () => this.setState({loading: false, error: true});
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image.onload = () => this.setState({loading: false, error: false});
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image.src = src;
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this.lastSrc = src;
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this.setState({loading: true});
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}
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render() {
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const { src } = this.props;
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const { loading, error } = this.state;
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// TODO: handle image error state
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const imageClass = `image-loader__img ${loading ? 'image-loader__img-loading' : ''}`;
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return <img className={imageClass} src={src} />; // eslint-disable-line jsx-a11y/img-has-alt
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}
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}
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export default ImageLoader;
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