132 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			132 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
import { debounce } from 'lodash';
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import React from 'react';
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import ImmutablePropTypes from 'react-immutable-proptypes';
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import PropTypes from 'prop-types';
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import StatusContainer from 'flavours/glitch/containers/status_container';
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import ImmutablePureComponent from 'react-immutable-pure-component';
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import LoadGap from './load_gap';
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import ScrollableList from './scrollable_list';
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import { FormattedMessage } from 'react-intl';
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export default class StatusList extends ImmutablePureComponent {
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  static propTypes = {
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    scrollKey: PropTypes.string.isRequired,
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    statusIds: ImmutablePropTypes.list.isRequired,
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    featuredStatusIds: ImmutablePropTypes.list,
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    onLoadMore: PropTypes.func,
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    onScrollToTop: PropTypes.func,
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    onScroll: PropTypes.func,
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    trackScroll: PropTypes.bool,
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    shouldUpdateScroll: PropTypes.func,
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    isLoading: PropTypes.bool,
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    isPartial: PropTypes.bool,
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    hasMore: PropTypes.bool,
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    prepend: PropTypes.node,
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    alwaysPrepend: PropTypes.bool,
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    emptyMessage: PropTypes.node,
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    timelineId: PropTypes.string.isRequired,
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  };
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  static defaultProps = {
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    trackScroll: true,
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  };
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  getFeaturedStatusCount = () => {
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    return this.props.featuredStatusIds ? this.props.featuredStatusIds.size : 0;
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  }
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  getCurrentStatusIndex = (id, featured) => {
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    if (featured) {
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      return this.props.featuredStatusIds.indexOf(id);
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    } else {
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      return this.props.statusIds.indexOf(id) + this.getFeaturedStatusCount();
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    }
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  }
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  handleMoveUp = (id, featured) => {
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    const elementIndex = this.getCurrentStatusIndex(id, featured) - 1;
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    this._selectChild(elementIndex);
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  }
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  handleMoveDown = (id, featured) => {
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    const elementIndex = this.getCurrentStatusIndex(id, featured) + 1;
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    this._selectChild(elementIndex);
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  }
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  handleLoadOlder = debounce(() => {
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    this.props.onLoadMore(this.props.statusIds.size > 0 ? this.props.statusIds.last() : undefined);
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  }, 300, { leading: true })
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  _selectChild (index) {
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    const element = this.node.node.querySelector(`article:nth-of-type(${index + 1}) .focusable`);
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    if (element) {
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      element.focus();
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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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  }
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  render () {
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    const { statusIds, featuredStatusIds, onLoadMore, timelineId, ...other }  = this.props;
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    const { isLoading, isPartial } = other;
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    if (isPartial) {
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      return (
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        <div className='regeneration-indicator'>
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          <div>
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            <div className='regeneration-indicator__figure' />
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            <div className='regeneration-indicator__label'>
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              <FormattedMessage id='regeneration_indicator.label' tagName='strong' defaultMessage='Loading…' />
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              <FormattedMessage id='regeneration_indicator.sublabel' defaultMessage='Your home feed is being prepared!' />
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            </div>
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          </div>
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        </div>
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      );
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    }
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    let scrollableContent = (isLoading || statusIds.size > 0) ? (
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      statusIds.map((statusId, index) => statusId === null ? (
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        <LoadGap
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          key={'gap:' + statusIds.get(index + 1)}
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          disabled={isLoading}
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          maxId={index > 0 ? statusIds.get(index - 1) : null}
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          onClick={onLoadMore}
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        />
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      ) : (
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        <StatusContainer
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          key={statusId}
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          id={statusId}
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          onMoveUp={this.handleMoveUp}
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          onMoveDown={this.handleMoveDown}
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          contextType={timelineId}
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        />
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      ))
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    ) : null;
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    if (scrollableContent && featuredStatusIds) {
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      scrollableContent = featuredStatusIds.map(statusId => (
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        <StatusContainer
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          key={`f-${statusId}`}
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          id={statusId}
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          featured
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          onMoveUp={this.handleMoveUp}
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          onMoveDown={this.handleMoveDown}
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          contextType={timelineId}
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        />
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      )).concat(scrollableContent);
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    }
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    return (
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      <ScrollableList {...other} showLoading={isLoading && statusIds.size === 0} onLoadMore={onLoadMore && this.handleLoadOlder} ref={this.setRef}>
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        {scrollableContent}
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      </ScrollableList>
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    );
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  }
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}
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