Change about page to be mounted in the web UI (#19345)

app/javascript/mastodon/components/image.js

@@ -0,0 +1,33 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import Blurhash from './blurhash';
+import classNames from 'classnames';
+
+export default class Image extends React.PureComponent {
+
+  static propTypes = {
+    src: PropTypes.string,
+    srcSet: PropTypes.string,
+    blurhash: PropTypes.string,
+    className: PropTypes.string,
+  };
+
+  state = {
+    loaded: false,
+  };
+
+  handleLoad = () => this.setState({ loaded: true });
+
+  render () {
+    const { src, srcSet, blurhash, className } = this.props;
+    const { loaded } = this.state;
+
+    return (
+      <div className={classNames('image', { loaded }, className)} role='presentation'>
+        {blurhash && <Blurhash hash={blurhash} className='image__preview' />}
+        <img src={src} srcSet={srcSet} alt='' onLoad={this.handleLoad} />
+      </div>
+    );
+  }
+
+}

app/javascript/mastodon/components/server_banner.js

@@ -7,13 +7,15 @@ import ShortNumber from 'mastodon/components/short_number';
 import Skeleton from 'mastodon/components/skeleton';
 import Account from 'mastodon/containers/account_container';
 import { domain } from 'mastodon/initial_state';
+import Image from 'mastodon/components/image';
+import { Link } from 'react-router-dom';
 
 const messages = defineMessages({
   aboutActiveUsers: { id: 'server_banner.about_active_users', defaultMessage: 'People using this server during the last 30 days (Monthly Active Users)' },
 });
 
 const mapStateToProps = state => ({
-  server: state.get('server'),
+  server: state.getIn(['server', 'server']),
 });
 
 export default @connect(mapStateToProps)
@@ -41,7 +43,7 @@ class ServerBanner extends React.PureComponent {
           <FormattedMessage id='server_banner.introduction' defaultMessage='{domain} is part of the decentralized social network powered by {mastodon}.' values={{ domain: <strong>{domain}</strong>, mastodon: <a href='https://joinmastodon.org' target='_blank'>Mastodon</a> }} />
         </div>
 
-        <img src={server.get('thumbnail')} alt={server.get('title')} className='server-banner__hero' />
+        <Image blurhash={server.getIn(['thumbnail', 'blurhash'])} src={server.getIn(['thumbnail', 'url'])} className='server-banner__hero' />
 
         <div className='server-banner__description'>
           {isLoading ? (
@@ -83,7 +85,7 @@ class ServerBanner extends React.PureComponent {
 
         <hr className='spacer' />
 
-        <a className='button button--block button-secondary' href='/about/more' target='_blank'><FormattedMessage id='server_banner.learn_more' defaultMessage='Learn more' /></a>
+        <Link className='button button--block button-secondary' to='/about'><FormattedMessage id='server_banner.learn_more' defaultMessage='Learn more' /></Link>
       </div>
     );
   }

app/javascript/mastodon/components/skeleton.js

@@ -4,8 +4,8 @@ import PropTypes from 'prop-types';
 const Skeleton = ({ width, height }) => <span className='skeleton' style={{ width, height }}>&zwnj;</span>;
 
 Skeleton.propTypes = {
-  width: PropTypes.number,
-  height: PropTypes.number,
+  width: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),
+  height: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),
 };
 
 export default Skeleton;