gecko-dev/testing/marionette/navigate.js

61 строка
1.7 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
XPCOMUtils.defineLazyGlobalGetters(this, ["URL"]);
this.EXPORTED_SYMBOLS = ["navigate"];
/** @namespace */
this.navigate = {};
/**
* Determines if we expect to get a DOM load event (DOMContentLoaded)
* on navigating to the <code>future</code> URL.
*
* @param {string} current
* URL the browser is currently visiting.
* @param {string=} future
* Destination URL, if known.
*
* @return {boolean}
* Full page load would be expected if future is followed.
*
* @throws TypeError
* If <code>current</code> is not defined, or any of
* <code>current</code> or <code>future</code> are invalid URLs.
*/
navigate.isLoadEventExpected = function(current, future = undefined) {
// assume we will go somewhere exciting
if (typeof current == "undefined") {
throw new TypeError("Expected at least one URL");
}
// Assume we will go somewhere exciting
if (typeof future == "undefined") {
return true;
}
let cur = new URL(current);
let fut = new URL(future);
// Assume javascript:<whatever> will modify the current document
// but this is not an entirely safe assumption to make,
// considering it could be used to set window.location
if (fut.protocol == "javascript:") {
return false;
}
// If hashes are present and identical
if (cur.href.includes("#") && fut.href.includes("#") &&
cur.hash === fut.hash) {
return false;
}
return true;
};