@beenotung/tslib/notification.js

utils library in Typescript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.showNotification = exports.requireNotification = exports.isSupportNotification = void 0;
const tslib_1 = require("tslib");
const defer_1 = require("./async/defer");
function isSupportNotification() {
    return 'Notification' in window;
}
exports.isSupportNotification = isSupportNotification;
function requireNotification() {
    return tslib_1.__awaiter(this, void 0, void 0, function* () {
        if (!isSupportNotification()) {
            return false;
        }
        const defer = defer_1.createDefer();
        Notification.requestPermission(res => {
            if (res === 'granted') {
                defer.resolve(true);
            }
            else if (res === 'denied') {
                defer.resolve(false);
            }
            else {
                defer.reject(new Error('unexpected result:' + res));
            }
        });
        return defer.promise;
    });
}
exports.requireNotification = requireNotification;
/**
 * alert can be used as fallback, otherwise will reject the promise
 * */
function showNotification(msg, options, useAlert = true) {
    return tslib_1.__awaiter(this, void 0, void 0, function* () {
        function fallback() {
            if (useAlert) {
                return alert(msg);
            }
            else {
                throw new Error('Notification is not supported');
            }
        }
        if (!(yield requireNotification()) ||
            !('ServiceWorkerRegistration' in window)) {
            return fallback();
        }
        try {
            return ServiceWorkerRegistration.prototype.showNotification(msg, options);
        }
        catch (e) {
            try {
                return new Notification(msg, options);
            }
            catch (e) {
                return fallback();
            }
        }
    });
}
exports.showNotification = showNotification;
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