Misago/frontend/src/components/li.js

import React from 'react';

export default class extends React.Component {
  isActive() {
    if (this.props.isControlled) {
      return this.props.isActive;
    } else {
      if (this.props.path) {
        return document.location.pathname.indexOf(this.props.path) === 0;
      } else {
        return false;
      }
    }
  }

  getClassName() {
    if (this.isActive()) {
      return (this.props.className || '') + ' '+ (this.props.activeClassName || 'active');
    } else {
      return this.props.className || '';
    }
  }

  render() {
    // jshint ignore:start
    return <li className={this.getClassName()}>
      {this.props.children}
    </li>;
    // jshint ignore:end
  }
}