wba/frontend/src/js/component/wb-arvados-crumbs.js

import { h, Component } from 'preact';
import WBBreadcrumbs from 'wb-breadcrumbs';
import fetchObjectParents from 'fetch-object-parents';

class WBArvadosCrumbs extends Component {
  constructor(...args) {
    super(...args);
    this.state.items = [ { 'name': 'All Projects' } ];
  }

  fetchCrumbs() {
    if (!this.props.uuid) {
      this.setState({ 'items': [ { 'name': 'All Projects' } ] });
      return;
    }

    let { arvHost, arvToken } = this.props.app.state;
    let prom = fetchObjectParents(arvHost, arvToken, this.props.uuid);
    prom = prom.then(parents => {
      this.setState({ 'items': parents });
    });
  }

  componentDidMount() {
    this.fetchCrumbs();
  }

  componentWillReceiveProps(nextProps) {
    this.props = nextProps;
    this.fetchCrumbs();
  }

  render({ app }, { items }) {
    return (
      <WBBreadcrumbs items={ items }
        onItemClicked={ item => app.breadcrumbClicked(item) } />
    );
  }
}

export default WBArvadosCrumbs;