A greasemonkey/tampermonkey userscript for enabling fullscreen on https://togethertube.com/

togethertube-fullscreen.user.js

// ==UserScript==
// @name         Togethertube Fullscreen
// @namespace    https://github.com/SirTony
// @version      0.2
// @description  Enables fullscreen on togethertube.com
// @author       Tony J. Ellis
// @match        https://togethertube.com/rooms/*
// @grant        none
// @require      https://cdnjs.cloudflare.com/ajax/libs/URI.js/1.18.4/URI.min.js
// @require      https://cdnjs.cloudflare.com/ajax/libs/URI.js/1.18.4/SecondLevelDomains.min.js
// ==/UserScript==

let registeredClick = false;

$( "div#bs-example-navbar-collapse-1:nth-of-type(1) ul.nav.navbar-nav.navbar-right" )
   .append( "<li><a id=\"btn-fullscreen\"><i class=\"fa fa-arrows-alt\"></i></a></li>" );

$( "a#btn-fullscreen" ).click( function() {
    var frame = $( "div#player div iframe" )[0];
    var func  = frame.requestFullscreen || frame.mozRequestFullScreen || frame.msRequestFullscreen || frame.webkitRequestFullScreen;

    if( typeof func !== "function" )
    {
        alert( "Fullscreen not available" );
        return;
    }

    func.call( frame );
} );

const search = $( "#videoSearchInput" );
search.on( "input", function() {
    const url = URI.parse( search.val() );

    if( !url.hostname )
        return;

    ( function() {
        /*
        Brute-force this event by trying to register it constantly until it works
        because togethertube is a huge pain in the ass
        */
        const buttonId = setInterval( function() {
            const voteUpButton = $( "div[data-ng-hide='searchInProgress'].ng-isolate-scope button.btn.btn-success.btn-block" );

            if( voteUpButton.length === 0 )
                return;

            voteUpButton.click( function() {
                angular.element( document.getElementById( "videoSearchInput" ) ).scope().videoSearchInput = "";
            } );

            clearInterval( buttonId );
        }, 1 );
    } )();
} );