masto-fe-standalone/app/javascript/mastodon/features/ui/containers/columns_area_container.js

import { connect } from 'react-redux';
import ColumnsArea from '../components/columns_area';

const mapStateToProps = state => ({
  columns: state.getIn(['settings', 'columns']),
});

export default connect(mapStateToProps, null, null, { withRef: true })(ColumnsArea);
Allow mounting arbitrary columns (#3207) * Allow mounting arbitrary columns * Refactor column headers, allow pinning/unpinning and moving columns around * Collapse animation * Re-introduce scroll to top * Save column settings properly, do not display pin options in single-column view, do not display collapse icon if there is nothing to collapse * Fix one instance of public timeline being closed closing the stream Fix back buttons inconsistently sending you back to / even if history exists * Getting started displays links to columns that are not mounted 2017-06-03 23:39:38 +00:00			`import { connect } from 'react-redux';`
			`import ColumnsArea from '../components/columns_area';`

			`const mapStateToProps = state => ({`
			`columns: state.getIn(['settings', 'columns']),`
			`});`

Do not scroll the columns area due to redirection (#4541) Commit 9d1f8b9d6af1d384a4dd68bc6353a2fde5735b33 scrolls the columns area when the route changes since the user is likely to want to see the rightmost column in such cases. However, redirection is automatic and does not indicate users' intension. Do not scroll the columns area due to one. 2017-08-29 12:16:21 +00:00			`export default connect(mapStateToProps, null, null, { withRef: true })(ColumnsArea);`