cordova-elm-template-jumpstart/template_src/src/init.d/domReady.js

Cordova template to jumpstart development using Elm and Webpack

/*
 * Require the DOM to be ready before we are ready to go.
 *
 * We are stealing the impl from jQuery, but trying to avoid including jQuery itself.
 * https://github.com/jquery/jquery/blob/bd984f0ee2cf40107a669d80d92566b8625b1e6b/src/core/ready-no-deferred.js#L77-L93
 *
 * If you already include jQuery in your project, then use this code:
 *    import Promise from "bluebird";
 *    import $ from jQuery;
 *    module.exports = new Promise((resolved) => $(() => resolved(true))):
 * */

import Promise from "bluebird";
import _ from "lodash";

module.exports = new Promise((resolved) => {
  const resolve = _.once(() => resolved(true));

  if ( document.readyState === "complete" || ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {

    // Handle it asynchronously to allow scripts the opportunity to delay ready
    window.setTimeout( resolve );

  } else {

    // Use the handy event callback
    document.addEventListener( "DOMContentLoaded", resolve );

    // A fallback to window.onload, that will always work
    window.addEventListener( "load", resolve );

  }

}).return(true);