hometown/app/javascript/mastodon/features/status/components/card.js

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import React from 'react';
import PropTypes from 'prop-types';
import Immutable from 'immutable';
import ImmutablePropTypes from 'react-immutable-proptypes';
import punycode from 'punycode';
import classnames from 'classnames';
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const IDNA_PREFIX = 'xn--';
const decodeIDNA = domain => {
return domain
.split('.')
.map(part => part.indexOf(IDNA_PREFIX) === 0 ? punycode.decode(part.slice(IDNA_PREFIX.length)) : part)
.join('.');
};
const getHostname = url => {
const parser = document.createElement('a');
parser.href = url;
return parser.hostname;
};
export default class Card extends React.PureComponent {
static propTypes = {
card: ImmutablePropTypes.map,
maxDescription: PropTypes.number,
onOpenMedia: PropTypes.func.isRequired,
};
static defaultProps = {
maxDescription: 50,
};
state = {
width: 0,
};
handlePhotoClick = () => {
const { card, onOpenMedia } = this.props;
onOpenMedia(
Immutable.fromJS([
{
type: 'image',
url: card.get('url'),
description: card.get('title'),
meta: {
original: {
width: card.get('width'),
height: card.get('height'),
},
},
},
]),
0
);
};
renderLink () {
const { card, maxDescription } = this.props;
let image = '';
let provider = card.get('provider_name');
if (card.get('image')) {
image = (
<div className='status-card__image'>
<img src={card.get('image')} alt={card.get('title')} className='status-card__image-image' width={card.get('width')} height={card.get('height')} />
</div>
);
}
if (provider.length < 1) {
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provider = decodeIDNA(getHostname(card.get('url')));
}
const className = classnames('status-card', {
'horizontal': card.get('width') > card.get('height'),
});
return (
<a href={card.get('url')} className={className} target='_blank' rel='noopener'>
{image}
<div className='status-card__content'>
<strong className='status-card__title' title={card.get('title')}>{card.get('title')}</strong>
<p className='status-card__description'>{(card.get('description') || '').substring(0, maxDescription)}</p>
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<span className='status-card__host'>{provider}</span>
</div>
</a>
);
}
renderPhoto () {
const { card } = this.props;
return (
<img
className='status-card-photo'
onClick={this.handlePhotoClick}
role='button'
tabIndex='0'
src={card.get('url')}
alt={card.get('title')}
width={card.get('width')}
height={card.get('height')}
/>
);
}
setRef = c => {
if (c) {
this.setState({ width: c.offsetWidth });
}
}
renderVideo () {
const { card } = this.props;
const content = { __html: card.get('html') };
const { width } = this.state;
const ratio = card.get('width') / card.get('height');
const height = card.get('width') > card.get('height') ? (width / ratio) : (width * ratio);
return (
<div
ref={this.setRef}
className='status-card-video'
dangerouslySetInnerHTML={content}
style={{ height }}
/>
);
}
render () {
const { card } = this.props;
if (card === null) {
return null;
}
switch(card.get('type')) {
case 'link':
return this.renderLink();
case 'photo':
return this.renderPhoto();
case 'video':
return this.renderVideo();
case 'rich':
default:
return null;
}
}
}