@voila-dashboards/jupyterlab-gridstack/lib/editor/toolbar/revert.js

A gridstack-based template for [](https://github.com/voila-dashboards/voila).

import { ReactWidget, ToolbarButtonComponent } from '@jupyterlab/apputils';
import { undoIcon } from '@jupyterlab/ui-components';
import * as React from 'react';
/**
 * A toolbar widget to reload the dashboard positions from disk.
 */
export default class Revert extends ReactWidget {
    constructor(panel) {
        super();
        this._panel = panel;
    }
    render() {
        const onClick = () => {
            this._panel.revert();
        };
        return (React.createElement(ToolbarButtonComponent, { icon: undoIcon, onClick: onClick, tooltip: 'Reload Notebook from Disk' }));
    }
}