GeForce NOW Fullscreen

userscript.js

// ==UserScript==
// @name         GeforceNow Fullscreen
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://play.geforcenow.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=geforcenow.com
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    function log(message) {
        console.log(`cubigfn: ${message}`);
    }
    function fullscreenchanged(event) {
        //event.stopImmediatePropagation();
        if (document.fullscreenElement) {
            log(
                `Element: ${document.fullscreenElement.id} entered fullscreen mode.`
            );
            document.exitFullscreen();
        } else {
            log("Leaving fullscreen mode, stop propa gation");
            event.stopImmediatePropagation();
        }
    }
    document.addEventListener("fullscreenchange", fullscreenchanged, true);
    const oldCreateElement = document.createElement;
    document.createElement = function(tagName, options) {
        const result = oldCreateElement.call(this, tagName, options);
        if (arguments[0] !== 'video') {
            return result;
        }
        console.log('cubigfn: found video');
        // requestFullscreen
        const oldRequestFullscreen = result.requestFullscreen;
        result.oldRequestFullscreen = oldRequestFullscreen;
        result.requestFullscreen = function() {
            log('requesting fullscreen on element');
            log(result);
            log(arguments);
            return oldRequestFullscreen.call(this);
            //return new Promise((resolve, reject) => {
            //    document.fullscreenElement = result;
            //    resolve();
            //});
        };
        // lockapi keeps mouse cursor at start position, without moving it
        // requestPointerLock
        const oldRequestPointerLock = result.requestPointerLock;
        result.oldRequestPointerLock = oldRequestPointerLock;
        result.requestPointerLock = function(options) {
            log('locking pointer on element');
            log(result);
            log(options);
            //return oldRequestPointerLock.call(this, options);
            return new Promise((resolve, reject) => {
                resolve();
            });
        }
        result.addEventListener('mouseenter', (event) => {
            log('mouse enter');
            log(event);
            //result.exitPointerLock();
            //result.requestPointerLock({unadjustedMovement: true});
            //result.requestPointerLock();
            event.x;
            event.y;
            event.pageX;
            event.pageY;
            event.screenX;
            event.screenY;
            /*setTimeout(() => {
                log('timeout');
                window.video.click();
                const evt = new MouseEvent('click', {
                    bubbles: true,
                    cancelable: true,
                    clientX: 10,
                    clientY: 0,
                });
                window.video.dispatchEvent(evt);
            }, 1000);*/
        });
        result.addEventListener('mouseleave', (event) => {
            log('mouse leave');
            log(event);
        });
        const videochange = (mutationList, observer) => {
            log("change");
            if (result.style.cursor === 'none') {
                window.video.style.cursor = null;
            }
        }
        const observer = new MutationObserver(videochange);
        observer.observe(result, {attributes: true});
        window.video = result;
        return result;
    };
    document.oldCreateElement = oldCreateElement;
    console.clear = () => {};
    addEventListener('mousemove', (event) => {
        log('mouse move event');
    });
})();