Switches the video to full-screen mode when you rotate your smart device
// ==UserScript==
// @name m.YouTube.com auto fullscreen on rotate
// @namespace m-youtube-com-auto-fullcreen-on-rotate
// @version 1.0
// @description Switches the video to full-screen mode when you rotate your smart device
// @author hlorand.hu
// @match https://m.youtube.com/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=tampermonkey.net
// @grant none
// @license https://creativecommons.org/licenses/by-nc-sa/4.0/
// ==/UserScript==
// Screenshot: https://ibb.co/chtmD9F
(function() {
//'use strict';
window.addEventListener("orientationchange", (event) => {
let player = document.getElementById("player-container-id");
let angle = event.target.screen.orientation.angle;
// enter fullscreen
if( angle > 60 && angle < 120 || angle > 240 && angle < 300 ){
player.requestFullscreen();
}
// exit fullscreen
if( angle > 330 || angle < 30 || angle > 150 && angle < 210 ){
document.exitFullscreen();
}
});
})();