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Toggle mini player when scrolling down in YouTube. Video download by using youtubeinmp3.com API. Rebind space key for play/pause (no more accidentally scroll down).
// ==UserScript==
// @name Better YouTube
// @namespace feifeihang.info
// @description Toggle mini player when scrolling down in YouTube. Video download by using youtubeinmp3.com API. Rebind space key for play/pause (no more accidentally scroll down).
// @include https://youtu.be/*
// @include http://youtu.be/*
// @include https://www.youtube.com/*
// @include http://www.youtube.com/*
// @version 5.2.5
// @grant none
// ==/UserScript==
(function (window, document, undefined) {
var MP3_API = 'http://youtubeinmp3.com/fetch/?video=';
var fontAwesome = document.createElement('link');
fontAwesome.rel = 'stylesheet';
fontAwesome.href = 'https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css';
document.head.appendChild(fontAwesome);
var isRight = true;
// find and keep a reference of the video player.
var player;
var stylePlayer = '';
var video;
var videoSize = {
};
var controls;
var controlsWidth;
// a flag to indicate is the mini player is toggled.
var isToggled = false;
var isTogglable = true;
var originalHeight;
var s2sBtn;
var hasAddedMini = false;
var shouldToggle = false;
var urlBuffer = '';
var playBtn;
window.setInterval(function () {
if (isToggled &&
!/^http[sS]*\:\/\/www\.youtube\.com\/watch[?]*/.test(window.location.href) &&
shouldToggle) {
turnOff();
shouldToggle = false;
window.removeEventListener('keydown', bindSpaceKey, true);
}
if (!shouldToggle &&
/^http[sS]*\:\/\/www\.youtube\.com\/watch[?]*/.test(window.location.href)) {
if (window.location.href !== urlBuffer) {
isToggled = false;
urlBuffer = urlBuffer;
// bind whitespace key.
playBtn = document.querySelector('.ytp-play-button');
if (playBtn) {
window.addEventListener('keydown', bindSpaceKey, true);
}
}
shouldToggle = true;
}
if (/^http[sS]*\:\/\/www\.youtube\.com\/watch[?]*/.test(window.location.href)) {
// check and add MP3 download button.
var mp3Id = 'better-youtube-mp3-download-btn';
if (!document.querySelector('#' + mp3Id)) {
var container = document.querySelector('#watch8-secondary-actions');
var btn = document.createElement('a');
btn.innerHTML = '<i class="fa fa-lg fa-download"></i> Download';
btn.id = mp3Id;
btn.className += ' yt-uix-button yt-uix-button-size-default yt-uix-button-opacity yt-uix-button-has-icon no-icon-markup pause-resume-autoplay action-panel-trigger';
btn.style = 'display: inline-block; line-height: 25px; color: rgb(230, 33, 23); font-weight: bold;';
btn.onmouseenter = function () {
this.href = MP3_API + window.location.href;
}
btn.onmouseout = function () {
this.href = '';
}
container.insertBefore(btn, container.firstChild);
}
}
}, 500);
var intervalId = window.setInterval(function () {
if (!hasAddedMini &&
/^http[sS]*\:\/\/www\.youtube\.com\/watch[?]*/.test(window.location.href)) {
shouldToggle = true;
player = document.querySelector('#movie_player');
video = document.querySelector('#movie_player video.video-stream');
controls = document.querySelector('#movie_player .ytp-chrome-bottom');
window.addEventListener('scroll', function () {
if (!isTogglable) {
return false;
}
// when scrolling up to 1/3 original player height, turn off mini player.
if (isToggled && window.pageYOffset < originalHeight / 3) {
turnOff();
return;
}
// when scrolling down to 1/3 player height, go to mini player mode.
if (shouldToggle) {
gotoMini();
}
}, false);
// add a mini player toggle button.
var btn = document.createElement('div');
btn.className += ' yt-uix-button yt-uix-button-size-default yt-uix-button-primary';
btn.innerHTML = 'Mini: on';
btn.style = 'line-height: 26px; height: 26px; margin-left: 5px;';
btn.onclick = function () {
if (this.innerHTML === 'Mini: on') {
this.innerHTML = 'Mini: off';
isTogglable = false;
if (isToggled) {
turnOff();
}
}
else {
this.innerHTML = 'Mini: on';
gotoMini();
isTogglable = true;
}
}
var dom = document.querySelector('#yt-masthead-signin') ||
document.querySelector('#yt-masthead-user');
dom.appendChild(btn);
hasAddedMini = true;
window.clearInterval(intervalId);
}
}, 500);
function bindSpaceKey(evt) {
var inputs = document.querySelectorAll('input[type=text], textarea, div.yt-simplebox-text');
inputs = Array.prototype.slice.apply(inputs);
if (inputs.indexOf(document.activeElement) === - 1 && evt.keyCode === 32) {
evt.preventDefault();
playBtn.click();
}
}
function turnOff() {
player.style = stylePlayer;
video.style.width = videoSize.width;
video.style.height = videoSize.height;
video.style.left = videoSize.left;
video.style.top = videoSize.top;
controls.style.width = controlsWidth;
if (document.querySelector('.ytp-size-button')) {
document.querySelector('.ytp-size-button').style.display = 'inline-block';
}
if (s2sBtn) {
s2sBtn.remove();
}
isToggled = false;
}
function gotoMini() {
if (!isToggled &&
window.pageYOffset >= parseInt(player.offsetHeight, 10) / 3) {
originalHeight = parseInt(player.offsetHeight, 10);
stylePlayer = player.style.cssText;
videoSize = {
height: video.style.height,
width: video.style.width,
left: video.style.left,
top: video.style.top
};
controlsWidth = controls.style.width;
var top = 'top: ' + (window.innerHeight - 270) + 'px;';
var left = 'left: ' + (window.innerWidth - 430) + 'px;';
var fontString = '';
if (isRight) {
player.style = 'position: fixed; bottom: 20px; left: 20px; height: 230px;' +
'width: 400px; z-index: 9999999;' + top + left;
fontString = '<i class="fa fa-2x fa-caret-square-o-left"></i>';
}
else {
player.style = 'position: fixed; bottom: 20px; left: 20px; height: 230px;' +
'width: 400px; z-index: 9999999;' + top;
fontString = '<i class="fa fa-2x fa-caret-square-o-right"></i>';
}
video.style.height = '250px';
video.style.width = '400px';
video.style.top = '-10px';
video.style.left = '0';
controls.style.width = '350px';
// now, hide the switch size button.
if (document.querySelector('.ytp-size-button')) {
document.querySelector('.ytp-size-button').style.display = 'none';
}
// add the 'Side-to-side' button.
s2sBtn = document.createElement('button');
s2sBtn.className += ' ytp-button';
s2sBtn.style.lineHeight = '10px';
s2sBtn.innerHTML = fontString;
s2sBtn.setAttribute('title', 'Mini player side to side');
s2sBtn.onclick = function () {
if (isRight) {
player.style = 'position: fixed; bottom: 20px; left: 20px; height: 230px;' +
'width: 400px; z-index: 9999999;' + top;
fontString = '<i class="fa fa-2x fa-caret-square-o-right"></i>';
isRight = false;
}
else {
player.style = 'position: fixed; bottom: 20px; left: 20px; height: 230px;' +
'width: 400px; z-index: 9999999;' + top + left;
fontString = '<i class="fa fa-2x fa-caret-square-o-right"></i>';
isRight = true;
}
s2sBtn.innerHTML = fontString;
};
var fullscreen = document.querySelector('.ytp-fullscreen-button');
fullscreen.parentElement.insertBefore(s2sBtn, null);
isToggled = true;
}
}
}) (window, document);