| function urlB64ToUint8Array(base64String) {
|
| const padding = '='.repeat((4 - base64String.length % 4) % 4);
|
| const base64 = (base64String + padding).replace(/-/g, '+').replace(/_/g, '/');
|
|
|
| const rawData = window.atob(base64);
|
| const outputArray = new Uint8Array(rawData.length);
|
|
|
| for (let i = 0; i < rawData.length; ++i) {
|
| outputArray[i] = rawData.charCodeAt(i);
|
| }
|
| return outputArray;
|
| }
|
|
|
| class WebPushManager {
|
| manager: any;
|
| subscriptionAttempt: boolean;
|
|
|
| constructor() {
|
| this.manager = null;
|
| this.subscriptionAttempt = false;
|
| }
|
|
|
| set = manager => {
|
| this.manager = manager;
|
| if (this.subscriptionAttempt) {
|
| this.subscribe();
|
| } else if (this.unsubscriptionAttempt) {
|
| this.unsubscribe();
|
| }
|
| };
|
|
|
| subscribe = () => {
|
| if (!this.manager) {
|
| this.subscriptionAttempt = true;
|
| return Promise.reject('Please try again.');
|
| }
|
| return this.manager.subscribe({
|
| userVisibleOnly: true,
|
| applicationServerKey: urlB64ToUint8Array(
|
| 'BPJAFt0MO2BkTYSuzNdGHbVD6lbk2bzYqMBp1gBXLKUupEIIV7yXViZ1D7SyrJfFbYkKuoxwyaP8YcHU8nRDQsA'
|
| ),
|
| });
|
| };
|
|
|
| unsubscribe = () => {
|
| if (!this.manager) {
|
| this.unsubscriptionAttempt = true;
|
| return Promise.resolve(true);
|
| }
|
| return this.getSubscription().then(subscription =>
|
| subscription.unsubscribe()
|
| );
|
| };
|
|
|
| getPermissionState = () => {
|
|
|
| if (!('serviceWorker' in navigator) || !('PushManager' in window)) {
|
| return new Promise(res => {
|
| res(false);
|
| });
|
| }
|
|
|
| if (navigator.permissions) {
|
| return navigator.permissions
|
| .query({ name: 'notifications' })
|
| .then(result => result.state);
|
| }
|
|
|
| return new Promise(res => {
|
| res(Notification.permission);
|
| });
|
| };
|
|
|
| _getSubscription = () => {
|
| return this.manager.getSubscription();
|
| };
|
|
|
| getSubscription = () =>
|
| new Promise(res => {
|
|
|
| if (!this.manager) {
|
| setTimeout(() => {
|
| res(this.getSubscription());
|
| }, 500);
|
| } else {
|
| res(this._getSubscription());
|
| }
|
| });
|
| }
|
|
|
| export default new WebPushManager();
|
|
|
