insomnia/app/ui/components/base/Link.js

import React, {Component, PropTypes} from 'react';
import {shell} from 'electron';
import {trackEvent} from '../../../analytics/index';
import * as querystring from '../../../common/querystring';
import {getAppVersion} from '../../../common/constants';
import {isDevelopment} from '../../../common/constants';

class Link extends Component {
  _handleClick = e => {
    e && e.preventDefault();
    const {href, onClick} = this.props;

    // Also call onClick that was passed to us if there was one
    onClick && onClick(e);

    if (href.match(/^http/i)) {
      const appName = isDevelopment() ? 'Insomnia Dev' : 'Insomnia';
      const qs = `utm_source=${appName}&utm_medium=app&utm_campaign=v${getAppVersion()}`;
      const attributedHref = querystring.joinUrl(href, qs);
      shell.openExternal(attributedHref);
    } else {
      // Don't modify non-http urls
      shell.openExternal(href);
    }

    trackEvent('Link', 'Click', href);
  };

  render () {
    const {onClick, button, href, children, ...other} = this.props;
    return button ?
      <button onClick={this._handleClick} {...other}>{children}</button> :
      <a href={href} onClick={this._handleClick} {...other}>{children}</a>
  }
}

Link.propTypes = {
  href: PropTypes.string.isRequired,

  // Optional
  button: PropTypes.bool
};

export default Link;