https://www.cifaong.it/Scripts/install.js

1/*
2 * @license
3 * Your First PWA Codelab (https://g.co/codelabs/pwa)
4 * Copyright 2019 Google Inc. All rights reserved.
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 *     https://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License
17 */
18'use strict';
19
20let deferredInstallPrompt = null;
21//const installButton = document.getElementById('butInstall');
22//const installButton = document.getElementById('butInstall');
23//installButton.addEventListener('click', installPWA);
24
25// CODELAB: Add event listener for beforeinstallprompt event
26window.addEventListener('beforeinstallprompt', saveBeforeInstallPromptEvent);
27
28
29function saveBeforeInstallPromptEvent(evt) {
30    // CODELAB: Add code to save event & show the install button.
31    deferredInstallPrompt = evt;
32    //installButton.removeAttribute('hidden');
33}
34
35
36
37function installPWA(evt) {
38    // CODELAB: Add code show install prompt & hide the install button.
39    deferredInstallPrompt.prompt();
40    // Hide the install button, it can't be called twice.
41    evt.srcElement.setAttribute('hidden', true);
42    // CODELAB: Log user response to prompt.
43    deferredInstallPrompt.userChoice
44        .then((choice) => {
45            if (choice.outcome === 'accepted') {
46                console.log('User accepted the A2HS prompt', choice);
47            } else {
48                console.log('User dismissed the A2HS prompt', choice);
49            }
50            deferredInstallPrompt = null;
51        });
52}
53
54// CODELAB: Add event listener for appinstalled event
55window.addEventListener('appinstalled', logAppInstalled);
56
57function logAppInstalled(evt) {
58    // CODELAB: Add code to log the event
59    console.log('Weather App was installed.', evt);
60}