281 lines
		
	
	
	
		
			7.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			281 lines
		
	
	
	
		
			7.9 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 { decode as decodeIDNA } from 'flavours/glitch/util/idna';
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import Icon from 'flavours/glitch/components/icon';
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import { useBlurhash } from 'flavours/glitch/util/initial_state';
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import Blurhash from 'flavours/glitch/components/blurhash';
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import { debounce } from 'lodash';
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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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  }
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  componentWillUnmount () {
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    window.removeEventListener('resize', this.handleResize);
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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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  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, defaultWidth } = 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 = (
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      <Blurhash
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        className={classnames('status-card__image-preview', {
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          'status-card__image-preview--hidden': revealed && this.state.previewLoaded,
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        })}
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        hash={card.get('blurhash')}
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        dummy={!useBlurhash}
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      />
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    );
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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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