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UserScript Notification Framework

This script is intended to work with @require only. Exposes an instance of the Notifications class of this script to window.UserScript.Notifications

As of 19. 01. 2022. See the latest version.

This script should not be not be installed directly. It is a library for other scripts to include with the meta directive // @require https://update.greatest.deepsurf.us/scripts/438798/1010236/UserScript%20Notification%20Framework.js 

// ==UserScript==
// @namespace    Xortrox/UserScripts/Notifications
// @name         UserScript Notification Framework
// @version      0.3
// @description  This script is intended to work with @require only. Exposes an instance of the Notifications class of this script to window.UserScript.Notifications
// @author       Xortrox, Puls3
// @match        *
// @esversion:   6
// @license MIT
// ==/UserScript==

class Notifications {

    /** Should always be awaited before you use notifications. */
    askPermission() {
        return this.hasPermission();
    }

    notify(title, text, icon) {
        this.hasPermission().then(function (result) {
            if (result === true) {
                let popup = new window.Notification(title, { body: text, icon: icon });
                popup.onclick = function () {
                    window.focus();
                }
            }
        });
    }

    hasPermission() {
        return new Promise(function (resolve) {
            if ('Notification' in window) {
                if (window.Notification.permission === 'granted') {
                    resolve(true);
                } else {
                    window.Notification.requestPermission().then(function (permission) {
                        if (permission === 'granted') {
                            resolve(true);
                        } else {
                            resolve(false);
                        }
                    });
                }
            } else {
                resolve(true);
            }
        });
    }
}

if (!window.UserScript) {
    window.UserScript = {};
}
window.UserScript.Notifications = new Notifications();