mirror of https://github.com/Siphonay/mastodon
124 lines
3.3 KiB
JavaScript
124 lines
3.3 KiB
JavaScript
import React from 'react';
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import Status from './status';
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import ImmutablePropTypes from 'react-immutable-proptypes';
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import { ScrollContainer } from 'react-router-scroll';
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import PropTypes from 'prop-types';
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import StatusContainer from '../containers/status_container';
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import LoadMore from './load_more';
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import ImmutablePureComponent from 'react-immutable-pure-component';
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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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onScrollToBottom: PropTypes.func,
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onScrollToTop: PropTypes.func,
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onScroll: PropTypes.func,
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shouldUpdateScroll: PropTypes.func,
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isLoading: PropTypes.bool,
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isUnread: PropTypes.bool,
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hasMore: PropTypes.bool,
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prepend: PropTypes.node,
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emptyMessage: PropTypes.node,
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};
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static defaultProps = {
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trackScroll: true,
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};
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handleScroll = (e) => {
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const { scrollTop, scrollHeight, clientHeight } = e.target;
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const offset = scrollHeight - scrollTop - clientHeight;
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this._oldScrollPosition = scrollHeight - scrollTop;
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if (250 > offset && this.props.onScrollToBottom && !this.props.isLoading) {
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this.props.onScrollToBottom();
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} else if (scrollTop < 100 && this.props.onScrollToTop) {
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this.props.onScrollToTop();
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} else if (this.props.onScroll) {
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this.props.onScroll();
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}
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}
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componentDidMount () {
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this.attachScrollListener();
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}
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componentDidUpdate (prevProps) {
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if ((prevProps.statusIds.size < this.props.statusIds.size && prevProps.statusIds.first() !== this.props.statusIds.first() && !!this._oldScrollPosition) && this.node.scrollTop > 0) {
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this.node.scrollTop = this.node.scrollHeight - this._oldScrollPosition;
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}
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}
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componentWillUnmount () {
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this.detachScrollListener();
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}
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attachScrollListener () {
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this.node.addEventListener('scroll', this.handleScroll);
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}
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detachScrollListener () {
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this.node.removeEventListener('scroll', this.handleScroll);
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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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handleLoadMore = (e) => {
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e.preventDefault();
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this.props.onScrollToBottom();
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}
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render () {
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const { statusIds, onScrollToBottom, scrollKey, shouldUpdateScroll, isLoading, isUnread, hasMore, prepend, emptyMessage } = this.props;
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let loadMore = '';
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let scrollableArea = '';
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let unread = '';
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if (!isLoading && statusIds.size > 0 && hasMore) {
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loadMore = <LoadMore onClick={this.handleLoadMore} />;
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}
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if (isUnread) {
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unread = <div className='status-list__unread-indicator' />;
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}
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if (isLoading || statusIds.size > 0 || !emptyMessage) {
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scrollableArea = (
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<div className='scrollable' ref={this.setRef}>
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{unread}
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<div className='status-list'>
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{prepend}
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{statusIds.map((statusId) => {
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return <StatusContainer key={statusId} id={statusId} />;
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})}
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{loadMore}
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</div>
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</div>
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);
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} else {
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scrollableArea = (
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<div className='empty-column-indicator' ref={this.setRef}>
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{emptyMessage}
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</div>
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);
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}
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return (
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<ScrollContainer scrollKey={scrollKey} shouldUpdateScroll={shouldUpdateScroll}>
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{scrollableArea}
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</ScrollContainer>
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);
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}
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}
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export default StatusList;
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