content: import React from 'react';
  import ImmutablePropTypes from 'react-immutable-proptypes';
  import PropTypes from 'prop-types';
  import { FormattedMessage } from 'react-intl';
  import Permalink from './permalink';
  import classnames from 'classnames';
  import PollContainer from 'mastodon/containers/poll_container';
  import Icon from 'mastodon/components/icon';
  import { autoPlayGif } from 'mastodon/initial_state';
  
  const MAX_HEIGHT = 642; // 20px * 32 (+ 2px padding at the top)
  
  export default class StatusContent extends React.PureComponent {
  
    static contextTypes = {
      router: PropTypes.object,
    };
  
    static propTypes = {
      status: ImmutablePropTypes.map.isRequired,
      expanded: PropTypes.bool,
      showThread: PropTypes.bool,
      onExpandedToggle: PropTypes.func,
      onClick: PropTypes.func,
      collapsable: PropTypes.bool,
      onCollapsedToggle: PropTypes.func,
    };
  
    state = {
      hidden: true,
    };
  
    _updateStatusLinks () {
      const node = this.node;
  
      if (!node) {
        return;
      }
  
      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.classList.add('unhandled-link');
        }
  
        link.setAttribute('target', '_blank');
        link.setAttribute('rel', 'noopener noreferrer');
      }
  
      if (this.props.status.get('collapsed', null) === null) {
        let collapsed =
            this.props.collapsable
            && this.props.onClick
            && node.clientHeight > MAX_HEIGHT
            && this.props.status.get('spoiler_text').length === 0;
  
        if(this.props.onCollapsedToggle) this.props.onCollapsedToggle(collapsed);
  
        this.props.status.set('collapsed', collapsed);
      }
    }
  
    handleMouseEnter = ({ currentTarget }) => {
      if (autoPlayGif) {
        return;
      }
  
      const emojis = currentTarget.querySelectorAll('.custom-emoji');
  
      for (var i = 0; i < emojis.length; i++) {
        let emoji = emojis[i];
        emoji.src = emoji.getAttribute('data-original');
      }
    }
  
    handleMouseLeave = ({ currentTarget }) => {
      if (autoPlayGif) {
        return;
      }
  
      const emojis = currentTarget.querySelectorAll('.custom-emoji');
  
      for (var i = 0; i < emojis.length; i++) {
        let emoji = emojis[i];
        emoji.src = emoji.getAttribute('data-static');
      }
    }
  
    componentDidMount () {
      this._updateStatusLinks();
    }
  
    componentDidUpdate () {
      this._updateStatusLinks();
    }
  
    onMentionClick = (mention, e) => {
      if (this.context.router && e.button === 0 && !(e.ctrlKey || e.metaKey)) {
        e.preventDefault();
        this.context.router.history.push(`/@${mention.get('acct')}`);
      }
    }
  
    onHashtagClick = (hashtag, e) => {
      hashtag = hashtag.replace(/^#/, '');
  
      if (this.context.router && e.button === 0 && !(e.ctrlKey || e.metaKey)) {
        e.preventDefault();
        this.context.router.history.push(`/tags/${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)];
  
      let element = e.target;
      while (element) {
        if (element.localName === 'button' || element.localName === 'a' || element.localName === 'label') {
          return;
        }
        element = element.parentNode;
      }
  
      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 renderReadMore = this.props.onClick && status.get('collapsed');
      const renderViewThread = this.props.showThread && status.get('in_reply_to_id') && status.get('in_reply_to_account_id') === status.getIn(['account', 'id']);
  
      const content = { __html: status.get('contentHtml') };
      const spoilerContent = { __html: status.get('spoilerHtml') };
      const classNames = classnames('status__content', {
        'status__content--with-action': this.props.onClick && this.context.router,
        'status__content--with-spoiler': status.get('spoiler_text').length > 0,
        'status__content--collapsed': renderReadMore,
      });
  
      const showThreadButton = (
        <button className='status__content__read-more-button' onClick={this.props.onClick}>
          <FormattedMessage id='status.show_thread' defaultMessage='Show thread' />
        </button>
      );
  
      const readMoreButton = (
        <button className='status__content__read-more-button' onClick={this.props.onClick} key='read-more'>
          <FormattedMessage id='status.read_more' defaultMessage='Read more' /><Icon id='angle-right' fixedWidth />
        </button>
      );
  
      if (status.get('spoiler_text').length > 0) {
        let mentionsPlaceholder = '';
  
        const mentionLinks = status.get('mentions').map(item => (
          <Permalink to={`/@${item.get('acct')}`} 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} tabIndex='0' onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp} onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
            <p style={{ marginBottom: hidden && status.get('mentions').isEmpty() ? '0px' : null }}>
              <span dangerouslySetInnerHTML={spoilerContent} className='translate' />
              {' '}
              <button tabIndex='0' className={`status__content__spoiler-link ${hidden ? 'status__content__spoiler-link--show-more' : 'status__content__spoiler-link--show-less'}`} onClick={this.handleSpoilerClick}>{toggleText}</button>
            </p>
  
            {mentionsPlaceholder}
  
            <div tabIndex={!hidden ? 0 : null} className={`status__content__text ${!hidden ? 'status__content__text--visible' : ''} translate`} dangerouslySetInnerHTML={content} />
  
            {!hidden && !!status.get('poll') && <PollContainer pollId={status.get('poll')} />}
  
            {renderViewThread && showThreadButton}
          </div>
        );
      } else if (this.props.onClick) {
        const output = [
          <div className={classNames} ref={this.setRef} tabIndex='0' onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp} key='status-content' onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
            <div className='status__content__text status__content__text--visible translate' dangerouslySetInnerHTML={content} />
  
            {!!status.get('poll') && <PollContainer pollId={status.get('poll')} />}
  
            {renderViewThread && showThreadButton}
          </div>,
        ];
  
        if (renderReadMore) {
          output.push(readMoreButton);
        }
  
        return output;
      } else {
        return (
          <div className={classNames} ref={this.setRef} tabIndex='0' onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
            <div className='status__content__text status__content__text--visible translate' dangerouslySetInnerHTML={content} />
  
            {!!status.get('poll') && <PollContainer pollId={status.get('poll')} />}
  
            {renderViewThread && showThreadButton}
          </div>
        );
      }
    }
  
  }
  