catstodon/app/assets/javascripts/components/features/community_timeline/index.jsx
Akihiko Odaki cf845fed38 Hide some components rather than unmounting (#2271)
Hide some components rather than unmounting them to allow to show again
quickly and keep the view state such as the scrolled offset.
2017-04-24 04:49:08 +02:00

95 lines
2.7 KiB
JavaScript

import { connect } from 'react-redux';
import PropTypes from 'prop-types';
import StatusListContainer from '../ui/containers/status_list_container';
import Column from '../ui/components/column';
import {
refreshTimeline,
updateTimeline,
deleteFromTimelines,
connectTimeline,
disconnectTimeline
} from '../../actions/timelines';
import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
import ColumnBackButtonSlim from '../../components/column_back_button_slim';
import createStream from '../../stream';
const messages = defineMessages({
title: { id: 'column.community', defaultMessage: 'Local timeline' }
});
const mapStateToProps = state => ({
hasUnread: state.getIn(['timelines', 'community', 'unread']) > 0,
streamingAPIBaseURL: state.getIn(['meta', 'streaming_api_base_url']),
accessToken: state.getIn(['meta', 'access_token'])
});
let subscription;
class CommunityTimeline extends React.PureComponent {
componentDidMount () {
const { dispatch, streamingAPIBaseURL, accessToken } = this.props;
dispatch(refreshTimeline('community'));
if (typeof subscription !== 'undefined') {
return;
}
subscription = createStream(streamingAPIBaseURL, accessToken, 'public:local', {
connected () {
dispatch(connectTimeline('community'));
},
reconnected () {
dispatch(connectTimeline('community'));
},
disconnected () {
dispatch(disconnectTimeline('community'));
},
received (data) {
switch(data.event) {
case 'update':
dispatch(updateTimeline('community', JSON.parse(data.payload)));
break;
case 'delete':
dispatch(deleteFromTimelines(data.payload));
break;
}
}
});
}
componentWillUnmount () {
// if (typeof subscription !== 'undefined') {
// subscription.close();
// subscription = null;
// }
}
render () {
const { intl, hasUnread } = this.props;
return (
<Column icon='users' active={hasUnread} heading={intl.formatMessage(messages.title)}>
<ColumnBackButtonSlim />
<StatusListContainer {...this.props} scrollKey='community_timeline' type='community' emptyMessage={<FormattedMessage id='empty_column.community' defaultMessage='The local timeline is empty. Write something publicly to get the ball rolling!' />} />
</Column>
);
}
}
CommunityTimeline.propTypes = {
dispatch: PropTypes.func.isRequired,
intl: PropTypes.object.isRequired,
streamingAPIBaseURL: PropTypes.string.isRequired,
accessToken: PropTypes.string.isRequired,
hasUnread: PropTypes.bool
};
export default connect(mapStateToProps)(injectIntl(CommunityTimeline));