Importing vanillin from upstream ;) ;)

app/javascript/mastodon/components/status_content.js

@@ -0,0 +1,184 @@
+import React from 'react';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import escapeTextContentForBrowser from 'escape-html';
+import PropTypes from 'prop-types';
+import emojify from '../emoji';
+import { isRtl } from '../rtl';
+import { FormattedMessage } from 'react-intl';
+import Permalink from './permalink';
+import classnames from 'classnames';
+
+export default class StatusContent extends React.PureComponent {
+
+  static contextTypes = {
+    router: PropTypes.object,
+  };
+
+  static propTypes = {
+    status: ImmutablePropTypes.map.isRequired,
+    expanded: PropTypes.bool,
+    onExpandedToggle: PropTypes.func,
+    onClick: PropTypes.func,
+  };
+
+  state = {
+    hidden: true,
+  };
+
+  _updateStatusLinks () {
+    const node  = this.node;
+    const links = node.querySelectorAll('a');
+
+    for (var i = 0; i < links.length; ++i) {
+      let link = links[i];
+      if (link.classList.contains('status-link')) {
+        continue;
+      }
+      link.classList.add('status-link');
+
+      let mention = this.props.status.get('mentions').find(item => link.href === item.get('url'));
+
+      if (mention) {
+        link.addEventListener('click', this.onMentionClick.bind(this, mention), false);
+        link.setAttribute('title', mention.get('acct'));
+      } else if (link.textContent[0] === '#' || (link.previousSibling && link.previousSibling.textContent && link.previousSibling.textContent[link.previousSibling.textContent.length - 1] === '#')) {
+        link.addEventListener('click', this.onHashtagClick.bind(this, link.text), false);
+      } else {
+        link.setAttribute('title', link.href);
+      }
+
+      link.setAttribute('target', '_blank');
+      link.setAttribute('rel', 'noopener');
+    }
+  }
+
+  componentDidMount () {
+    this._updateStatusLinks();
+  }
+
+  componentDidUpdate () {
+    this._updateStatusLinks();
+  }
+
+  onMentionClick = (mention, e) => {
+    if (this.context.router && e.button === 0) {
+      e.preventDefault();
+      this.context.router.history.push(`/accounts/${mention.get('id')}`);
+    }
+  }
+
+  onHashtagClick = (hashtag, e) => {
+    hashtag = hashtag.replace(/^#/, '').toLowerCase();
+
+    if (this.context.router && e.button === 0) {
+      e.preventDefault();
+      this.context.router.history.push(`/timelines/tag/${hashtag}`);
+    }
+  }
+
+  handleMouseDown = (e) => {
+    this.startXY = [e.clientX, e.clientY];
+  }
+
+  handleMouseUp = (e) => {
+    if (!this.startXY) {
+      return;
+    }
+
+    const [ startX, startY ] = this.startXY;
+    const [ deltaX, deltaY ] = [Math.abs(e.clientX - startX), Math.abs(e.clientY - startY)];
+
+    if (e.target.localName === 'button' || e.target.localName === 'a' || (e.target.parentNode && (e.target.parentNode.localName === 'button' || e.target.parentNode.localName === 'a'))) {
+      return;
+    }
+
+    if (deltaX + deltaY < 5 && e.button === 0 && this.props.onClick) {
+      this.props.onClick();
+    }
+
+    this.startXY = null;
+  }
+
+  handleSpoilerClick = (e) => {
+    e.preventDefault();
+
+    if (this.props.onExpandedToggle) {
+      // The parent manages the state
+      this.props.onExpandedToggle();
+    } else {
+      this.setState({ hidden: !this.state.hidden });
+    }
+  }
+
+  setRef = (c) => {
+    this.node = c;
+  }
+
+  render () {
+    const { status } = this.props;
+
+    const hidden = this.props.onExpandedToggle ? !this.props.expanded : this.state.hidden;
+
+    const content = { __html: emojify(status.get('content')) };
+    const spoilerContent = { __html: emojify(escapeTextContentForBrowser(status.get('spoiler_text', ''))) };
+    const directionStyle = { direction: 'ltr' };
+    const classNames = classnames('status__content', {
+      'status__content--with-action': this.props.onClick && this.context.router,
+    });
+
+    if (isRtl(status.get('search_index'))) {
+      directionStyle.direction = 'rtl';
+    }
+
+    if (status.get('spoiler_text').length > 0) {
+      let mentionsPlaceholder = '';
+
+      const mentionLinks = status.get('mentions').map(item => (
+        <Permalink to={`/accounts/${item.get('id')}`} href={item.get('url')} key={item.get('id')} className='mention'>
+          @<span>{item.get('username')}</span>
+        </Permalink>
+      )).reduce((aggregate, item) => [...aggregate, item, ' '], []);
+
+      const toggleText = hidden ? <FormattedMessage id='status.show_more' defaultMessage='Show more' /> : <FormattedMessage id='status.show_less' defaultMessage='Show less' />;
+
+      if (hidden) {
+        mentionsPlaceholder = <div>{mentionLinks}</div>;
+      }
+
+      return (
+        <div className={classNames} ref={this.setRef} onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp}>
+          <p style={{ marginBottom: hidden && status.get('mentions').isEmpty() ? '0px' : null }}>
+            <span dangerouslySetInnerHTML={spoilerContent} />
+            {' '}
+            <button tabIndex='0' className='status__content__spoiler-link' onClick={this.handleSpoilerClick}>{toggleText}</button>
+          </p>
+
+          {mentionsPlaceholder}
+
+          <div className={`status__content__text ${!hidden ? 'status__content__text--visible' : ''}`} style={directionStyle} dangerouslySetInnerHTML={content} />
+        </div>
+      );
+    } else if (this.props.onClick) {
+      return (
+        <div
+          ref={this.setRef}
+          className={classNames}
+          style={directionStyle}
+          onMouseDown={this.handleMouseDown}
+          onMouseUp={this.handleMouseUp}
+          dangerouslySetInnerHTML={content}
+        />
+      );
+    } else {
+      return (
+        <div
+          ref={this.setRef}
+          className='status__content'
+          style={directionStyle}
+          dangerouslySetInnerHTML={content}
+        />
+      );
+    }
+  }
+
+}