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Pauses / Plays Video When Mouse Leaves Focus of Tab
// ==UserScript==
// @name Twitch Auto Pause/Play Toggle for Tab Switch
// @namespace http://userstyles.org
// @description Pauses / Plays Video When Mouse Leaves Focus of Tab
// @author 636597
// @include *://*.twitch.tv/*
// @run-at document-start
// @version 0.6
// ==/UserScript==
var PLAYING = true;
var PAUSE_PLAY_BUTTON_ELEMENT = false;
var CHECKING_FOCUS = true;
var BUTTON_ELEMENT = false;
function toggleCheckFocus() {
if ( CHECKING_FOCUS ) {
console.log( "Stopping Observing the Focus" );
clearObserver();
if ( !PLAYING ) {
PAUSE_PLAY_BUTTON_ELEMENT.click();
PLAYING = true;
}
BUTTON_ELEMENT.innerHTML = "Observe Focus";
}
else {
console.log( "Starting Observing the Focus" );
loadObserver();
BUTTON_ELEMENT.innerHTML = "Stop Observing Focus";
}
CHECKING_FOCUS = !CHECKING_FOCUS;
}
function addToggleCheckFocusButton() {
//var title_element = document.querySelector( 'h2[data-a-target="stream-title"]' );
var title_element = document.querySelector( 'div[data-test-selector="chat-input-buttons-container"' )
if ( !title_element ) { return; }
var id = "toggle-check-focus";
var element_string = '<button id="' + id + '">Stop Observing Focus</button>';
var template = document.createElement( "template" );
template.innerHTML = element_string;
title_element.insertBefore( template.content , title_element.childNodes[ title_element.childNodes.length - 1 ] );
BUTTON_ELEMENT = document.body.querySelector( "#" + id );
BUTTON_ELEMENT.addEventListener( "click" , function( event ) {
toggleCheckFocus();
});
}
// function checkFocus() {
// if ( document.hasFocus() ) {
// // console.log( "tab enter" );
// // console.log( "PLAYING === " + PLAYING );
// if ( !PLAYING ) {
// console.log( "Tab Entered: Toggling Play State" );
// PAUSE_PLAY_BUTTON_ELEMENT.click();
// PLAYING = true;
// }
// } else {
// // console.log( "tab leave" );
// // console.log( "PLAYING === " + PLAYING );
// if ( PLAYING ) {
// console.log( "Tab Left: Toggling Play State" );
// PAUSE_PLAY_BUTTON_ELEMENT.click();
// PLAYING = false;
// }
// }
// }
// Maybe It Be Converted to Observer Somehow
var observer_interval = false;
function clearObserver() {
//clearInterval( observer_interval );
document.removeEventListener( "mouseout" , mouseout_event_listener );
}
function mouseout_event_listener( e ) {
e = e ? e : window.event;
var from = e.relatedTarget || e.toElement;
if ( !from || from.nodeName == "HTML" ) {
if ( PLAYING ) {
console.log( "Mouse Out: Toggling Play State" );
PAUSE_PLAY_BUTTON_ELEMENT.click();
PLAYING = false;
}
}
else {
if ( !PLAYING ) {
console.log( "Mouse Entered: Toggling Play State" );
PAUSE_PLAY_BUTTON_ELEMENT.click();
PLAYING = true;
}
}
}
function loadObserver() {
console.log( PAUSE_PLAY_BUTTON_ELEMENT );
if ( !PAUSE_PLAY_BUTTON_ELEMENT ) { return; }
//observer_interval = setInterval( checkFocus , 1000 );
document.addEventListener( "mouseout" , mouseout_event_listener );
}
// Init
(function() {
var ready = setInterval(function(){
PAUSE_PLAY_BUTTON_ELEMENT = document.querySelector( 'button[data-a-target="player-play-pause-button"]' );
if ( !PAUSE_PLAY_BUTTON_ELEMENT ) { return; }
clearInterval( ready );
addToggleCheckFocusButton();
loadObserver();
} , 2 );
setTimeout( function() {
clearInterval( ready );
} , 10000 );
})();