@firefox-devtools/react-contextmenu/es6/actions.js

Context Menu implemented in React

import assign from 'object-assign';
import { store } from './helpers';
export const MENU_SHOW = 'REACT_CONTEXTMENU_SHOW';
export const MENU_HIDE = 'REACT_CONTEXTMENU_HIDE';
export function dispatchGlobalEvent(eventName, opts, target = window) {
  // Compatibale with IE
  // @see http://stackoverflow.com/questions/26596123/internet-explorer-9-10-11-event-constructor-doesnt-work
  let event;
  if (typeof window.CustomEvent === 'function') {
    event = new window.CustomEvent(eventName, {
      detail: opts
    });
  } else {
    event = document.createEvent('CustomEvent');
    event.initCustomEvent(eventName, false, true, opts);
  }
  if (target) {
    target.dispatchEvent(event);
    assign(store, opts);
  }
}
export function showMenu(opts = {}, target) {
  dispatchGlobalEvent(MENU_SHOW, assign({}, opts, {
    type: MENU_SHOW
  }), target);
}
export function hideMenu(opts = {}, target) {
  dispatchGlobalEvent(MENU_HIDE, assign({}, opts, {
    type: MENU_HIDE
  }), target);
}