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/*
* 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",
"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"
];
var appCache = this;
self.addEventListener("install", function(event) {
event.waitUntil(appCache._onInstall());
});
self.addEventListener("fetch", function(event) {
event.respondWith(appCache._onFetch(event.request));
});
}
_onInstall() {
var 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;
});
});
}
}
var appCache = new AppCache();
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