54 lines
1.4 KiB
JavaScript
54 lines
1.4 KiB
JavaScript
import React from 'react';
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import PropTypes from 'prop-types';
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class Preview extends React.Component {
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constructor (props) {
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super(props);
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this.state = {
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imgSource : '',
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defaultThumbnail: '/assets/img/video_thumb_default.png',
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};
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this.previewFile = this.previewFile.bind(this);
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}
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componentDidMount () {
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this.previewFile(this.props.file);
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}
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componentWillReceiveProps (newProps) {
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if (newProps.file !== this.props.file) {
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this.previewFile(newProps.file);
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}
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if (newProps.thumbnail !== this.props.thumbnail) {
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this.setState({imgSource: (newProps.thumbnail || this.state.defaultThumbnail)});
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}
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}
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previewFile (file) {
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const that = this;
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if (file.type !== 'video/mp4') {
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const previewReader = new FileReader();
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previewReader.readAsDataURL(file);
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previewReader.onloadend = function () {
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that.setState({imgSource: previewReader.result});
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};
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} else {
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that.setState({imgSource: (this.props.thumbnail || this.state.defaultThumbnail)});
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}
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}
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render () {
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return (
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<img
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id="asset-preview"
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src={this.state.imgSource}
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className={this.props.dimPreview ? 'dim' : ''}
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alt="publish preview"
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/>
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);
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}
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};
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Preview.propTypes = {
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dimPreview: PropTypes.bool.isRequired,
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file : PropTypes.object.isRequired,
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thumbnail : PropTypes.string,
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};
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export default Preview;
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