312 lines
8.6 KiB
JavaScript
312 lines
8.6 KiB
JavaScript
import React from 'react';
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import PropTypes from 'prop-types';
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import Immutable from 'immutable';
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import ImmutablePropTypes from 'react-immutable-proptypes';
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import { FormattedMessage } from 'react-intl';
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import punycode from 'punycode';
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import classnames from 'classnames';
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import Icon from 'mastodon/components/icon';
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import { useBlurhash } from 'mastodon/initial_state';
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import { decode } from 'blurhash';
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import { debounce } from 'lodash';
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const IDNA_PREFIX = 'xn--';
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const decodeIDNA = domain => {
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return domain
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.split('.')
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.map(part => part.indexOf(IDNA_PREFIX) === 0 ? punycode.decode(part.slice(IDNA_PREFIX.length)) : part)
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.join('.');
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};
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const getHostname = url => {
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const parser = document.createElement('a');
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parser.href = url;
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return parser.hostname;
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};
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const trim = (text, len) => {
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const cut = text.indexOf(' ', len);
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if (cut === -1) {
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return text;
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}
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return text.substring(0, cut) + (text.length > len ? '…' : '');
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};
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const domParser = new DOMParser();
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const addAutoPlay = html => {
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const document = domParser.parseFromString(html, 'text/html').documentElement;
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const iframe = document.querySelector('iframe');
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if (iframe) {
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if (iframe.src.indexOf('?') !== -1) {
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iframe.src += '&';
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} else {
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iframe.src += '?';
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}
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iframe.src += 'autoplay=1&auto_play=1';
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// DOM parser creates html/body elements around original HTML fragment,
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// so we need to get innerHTML out of the body and not the entire document
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return document.querySelector('body').innerHTML;
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}
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return html;
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};
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export default class Card extends React.PureComponent {
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static propTypes = {
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card: ImmutablePropTypes.map,
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maxDescription: PropTypes.number,
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onOpenMedia: PropTypes.func.isRequired,
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compact: PropTypes.bool,
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defaultWidth: PropTypes.number,
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cacheWidth: PropTypes.func,
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sensitive: PropTypes.bool,
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};
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static defaultProps = {
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maxDescription: 50,
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compact: false,
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};
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state = {
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width: this.props.defaultWidth || 280,
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previewLoaded: false,
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embedded: false,
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revealed: !this.props.sensitive,
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};
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componentWillReceiveProps (nextProps) {
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if (!Immutable.is(this.props.card, nextProps.card)) {
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this.setState({ embedded: false, previewLoaded: false });
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}
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if (this.props.sensitive !== nextProps.sensitive) {
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this.setState({ revealed: !nextProps.sensitive });
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}
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}
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componentDidMount () {
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window.addEventListener('resize', this.handleResize, { passive: true });
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if (this.props.card && this.props.card.get('blurhash')) {
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this._decode();
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}
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}
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componentWillUnmount () {
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window.removeEventListener('resize', this.handleResize);
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}
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componentDidUpdate (prevProps) {
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const { card } = this.props;
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if (card.get('blurhash') && (!prevProps.card || prevProps.card.get('blurhash') !== card.get('blurhash')) && this.canvas) {
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this._decode();
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}
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}
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_decode () {
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if (!useBlurhash) return;
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const hash = this.props.card.get('blurhash');
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const pixels = decode(hash, 32, 32);
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if (pixels) {
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const ctx = this.canvas.getContext('2d');
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const imageData = new ImageData(pixels, 32, 32);
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ctx.putImageData(imageData, 0, 0);
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}
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}
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_setDimensions () {
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const width = this.node.offsetWidth;
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if (this.props.cacheWidth) {
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this.props.cacheWidth(width);
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}
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this.setState({ width });
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}
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handleResize = debounce(() => {
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if (this.node) {
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this._setDimensions();
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}
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}, 250, {
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trailing: true,
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});
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handlePhotoClick = () => {
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const { card, onOpenMedia } = this.props;
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onOpenMedia(
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Immutable.fromJS([
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{
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type: 'image',
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url: card.get('embed_url'),
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description: card.get('title'),
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meta: {
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original: {
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width: card.get('width'),
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height: card.get('height'),
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},
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},
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},
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]),
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0,
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);
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};
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handleEmbedClick = () => {
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const { card } = this.props;
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if (card.get('type') === 'photo') {
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this.handlePhotoClick();
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} else {
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this.setState({ embedded: true });
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}
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}
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setRef = c => {
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this.node = c;
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if (this.node) {
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this._setDimensions();
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}
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}
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setCanvasRef = c => {
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this.canvas = c;
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}
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handleImageLoad = () => {
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this.setState({ previewLoaded: true });
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}
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handleReveal = e => {
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e.preventDefault();
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e.stopPropagation();
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this.setState({ revealed: true });
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}
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renderVideo () {
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const { card } = this.props;
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const content = { __html: addAutoPlay(card.get('html')) };
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const { width } = this.state;
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const ratio = card.get('width') / card.get('height');
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const height = width / ratio;
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return (
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<div
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ref={this.setRef}
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className='status-card__image status-card-video'
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dangerouslySetInnerHTML={content}
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style={{ height }}
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/>
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);
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}
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render () {
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const { card, maxDescription, compact } = this.props;
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const { width, embedded, revealed } = this.state;
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if (card === null) {
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return null;
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}
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const provider = card.get('provider_name').length === 0 ? decodeIDNA(getHostname(card.get('url'))) : card.get('provider_name');
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const horizontal = (!compact && card.get('width') > card.get('height') && (card.get('width') + 100 >= width)) || card.get('type') !== 'link' || embedded;
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const interactive = card.get('type') !== 'link';
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const className = classnames('status-card', { horizontal, compact, interactive });
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const title = interactive ? <a className='status-card__title' href={card.get('url')} title={card.get('title')} rel='noopener noreferrer' target='_blank'><strong>{card.get('title')}</strong></a> : <strong className='status-card__title' title={card.get('title')}>{card.get('title')}</strong>;
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const ratio = card.get('width') / card.get('height');
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const height = (compact && !embedded) ? (width / (16 / 9)) : (width / ratio);
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const description = (
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<div className='status-card__content'>
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{title}
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{!(horizontal || compact) && <p className='status-card__description'>{trim(card.get('description') || '', maxDescription)}</p>}
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<span className='status-card__host'>{provider}</span>
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</div>
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);
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let embed = '';
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let canvas = <canvas width={32} height={32} ref={this.setCanvasRef} className={classnames('status-card__image-preview', { 'status-card__image-preview--hidden' : revealed && this.state.previewLoaded })} />;
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let thumbnail = <img src={card.get('image')} alt='' style={{ width: horizontal ? width : null, height: horizontal ? height : null, visibility: revealed ? null : 'hidden' }} onLoad={this.handleImageLoad} className='status-card__image-image' />;
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let spoilerButton = (
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<button type='button' onClick={this.handleReveal} className='spoiler-button__overlay'>
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<span className='spoiler-button__overlay__label'><FormattedMessage id='status.sensitive_warning' defaultMessage='Sensitive content' /></span>
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</button>
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);
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spoilerButton = (
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<div className={classnames('spoiler-button', { 'spoiler-button--minified': revealed })}>
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{spoilerButton}
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</div>
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);
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if (interactive) {
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if (embedded) {
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embed = this.renderVideo();
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} else {
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let iconVariant = 'play';
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if (card.get('type') === 'photo') {
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iconVariant = 'search-plus';
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}
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embed = (
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<div className='status-card__image'>
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{canvas}
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{thumbnail}
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{revealed && (
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<div className='status-card__actions'>
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<div>
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<button onClick={this.handleEmbedClick}><Icon id={iconVariant} /></button>
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{horizontal && <a href={card.get('url')} target='_blank' rel='noopener noreferrer'><Icon id='external-link' /></a>}
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</div>
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</div>
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)}
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{!revealed && spoilerButton}
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</div>
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);
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}
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return (
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<div className={className} ref={this.setRef} onClick={revealed ? null : this.handleReveal} role={revealed ? 'button' : null}>
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{embed}
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{!compact && description}
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</div>
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);
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} else if (card.get('image')) {
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embed = (
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<div className='status-card__image'>
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{canvas}
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{thumbnail}
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</div>
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);
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} else {
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embed = (
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<div className='status-card__image'>
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<Icon id='file-text' />
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</div>
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);
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}
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return (
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<a href={card.get('url')} className={className} target='_blank' rel='noopener noreferrer' ref={this.setRef}>
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{embed}
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{description}
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</a>
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);
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}
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}
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