frontend/chrome-dino/scripts/neterror.slim.js

39 lines
1.4 KiB
JavaScript

// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
const HIDDEN_CLASS = 'hidden';
// Subframes use a different layout but the same html file. This is to make it
// easier to support platforms that load the error page via different
// mechanisms (Currently just iOS). We also use the subframe style for portals
// as they are embedded like subframes and can't be interacted with by the user.
let isSubFrame = false;
if (window.top.location !== window.location || window.portalHost) {
document.documentElement.setAttribute('subframe', '');
isSubFrame = true;
}
// Adds an icon class to the list and removes classes previously set.
function updateIconClass(newClass) {
const frameSelector = isSubFrame ? '#sub-frame-error' : '#main-frame-error';
const iconEl = document.querySelector(frameSelector + ' .icon');
if (iconEl.classList.contains(newClass)) {
return;
}
iconEl.className = 'icon ' + newClass;
}
function onDocumentLoad() {
const iconClass = loadTimeData.valueExists('iconClass') &&
loadTimeData.getValue('iconClass');
updateIconClass(iconClass);
if (!isSubFrame && iconClass === 'icon-offline') {
document.documentElement.classList.add('offline');
new Runner('.interstitial-wrapper');
}
}
document.addEventListener('DOMContentLoaded', onDocumentLoad);