PHP Classes

File: PNClient.js

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  Classes of Stefan Kientzler  >  PHP Web Push Notifications Server  >  PNClient.js  >  Download  
File: PNClient.js
Role: Auxiliary data
Content type: text/plain
Description: Auxiliary data
Class: PHP Web Push Notifications Server
Queue and push notifications to Web users
Author: By
Last change: fixes after set phpstan level 7
Date: 1 year ago
Size: 3,951 bytes
 

Contents

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/** * functions to support PUSH notifications (PN) on user client */ /** * subscribe Push notifications (PN) * - check, if PN's are available * - request users permission, if not done so far * - register service worker, if permisson is granted */ async function pnSubscribe() { if (pnAvailable()) { // if not granted or denied so far... if (window.Notification.permission === "default") { await window.Notification.requestPermission(); } if (Notification.permission === 'granted') { // register service worker await pnRegisterSW(); } } } /** * helper while testing * unsubscribe Push notifications */ async function pnUnsubscribe() { var swReg = null; if (pnAvailable()) { // unfortunately there is no function to reset Notification permission... // unregister service worker await pnUnregisterSW(); } } /** * helper while testing * update service worker. * works not correct on each browser/os -> sometimes brwoser have to * be restarted to update service worker */ async function pnUpdate() { var swReg = null; if (pnAvailable()) { // unfortunately there is no function to reset Notification permission... // unregister service worker await pnUpdateSW(); } } /** * helper while testing * check if PN already subscribed */ async function pnSubscribed() { var swReg; if (pnAvailable()) { swReg = await navigator.serviceWorker.getRegistration(); } return (swReg !== undefined); } /** * checks whether all requirements for PN are met * 1. have to run in secure context * - window.isSecureContext = true * 2. browser should implement at least * - navigatpr.serviceWorker * - window.PushManager * - window.Notification * * @returns boolen */ function pnAvailable() { var bAvailable = false; if (window.isSecureContext) { // running in secure context - check for available Push-API bAvailable = (('serviceWorker' in navigator) && ('PushManager' in window) && ('Notification' in window)); } else { console.log('site have to run in secure context!'); } return bAvailable; } /** * register the service worker. * there is no check for multiple registration necessary - browser/Push-API * takes care if same service-worker ist already registered */ async function pnRegisterSW() { navigator.serviceWorker.register('PNServiceWorker.js') .then((swReg) => { // registration worked console.log('Registration succeeded. Scope is ' + swReg.scope); }).catch((error) => { // registration failed console.log('Registration failed with ' + error); }); } /** * helper while testing * unregister the service worker. */ async function pnUnregisterSW() { navigator.serviceWorker.getRegistration() .then(function(reg) { reg.unregister() .then(function(bOK) { if (bOK) { console.log('unregister service worker succeeded.'); } else { console.log('unregister service worker failed.'); } }); }); } /** * helper while testing * update service worker. */ async function pnUpdateSW() { navigator.serviceWorker.getRegistration() .then(function(reg) { reg.update() .then(function(bOK) { if (bOK) { console.log('update of service worker succeeded.'); } else { console.log('update of service worker failed.'); } }); }); }