1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/*
* appcache.js
* Part of Pointless Viewer, a Beamer presentation viewer
* Copyright 2018 Pacien TRAN-GIRARD
* License: GNU GPL v3
*/
"use strict";
class AppCache {
constructor() {
this.cacheName = "cache";
this.filesToCache = [
".",
"appcache.js",
"favicon.ico",
"pointless/pdfjs/pdf.js",
"pointless/pdfjs/pdf.worker.js",
"pointless/viewer/viewer.css",
"pointless/viewer/init.js",
"pointless/viewer/viewer.js",
"pointless/viewer/presentation.js",
"pointless/viewer/stage.js",
"pointless/viewer/screen.js",
"pointless/viewer/timer.js"
];
const appCache = this;
self.addEventListener("install", function(event) {
event.waitUntil(appCache._onInstall());
});
self.addEventListener("fetch", function(event) {
event.respondWith(appCache._onFetch(event.request));
});
}
_onInstall() {
const self = this;
return caches.open(this.cacheName).then(function(cache) {
return cache.addAll(self.filesToCache);
});
}
_onFetch(request) {
return navigator.onLine ? this._fetchUpdate(request) : caches.match(request);
}
_fetchUpdate(request) {
return caches.open(this.cacheName).then(function(cache) {
return fetch(request).then(function(response) {
cache.put(request, response.clone());
return response;
});
});
}
}
const appCache = new AppCache();
|