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Adds faster playback speed buttons to youtube player control bar with remember choice ability.
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// ==UserScript==
// @name YouTube Faster Playback Speed Buttons
// @version 0.1
// @license MIT
// @description Adds faster playback speed buttons to youtube player control bar with remember choice ability.
// @author Cihan Tuncer
// @match https://www.youtube.com/*
// @grant unsafeWindow
// @namespace https://greasyfork.org/users/463229
// ==/UserScript==
/* jshint -W097 */
'use strict';
var callCount=0;
var savedBtn=null;
var chnCurrSpeed="x1";
var btns=[];
var x100=makeBtn("x1","1x",1);
var x125=makeBtn("x125","1.25x",1.25);
var x150=makeBtn("x150","1.50x",1.50);
var x175=makeBtn("x175","1.75x",1.75);
var x200=makeBtn("x2","2x",2);
var remBtn= document.createElement("button");
remBtn.className = "ytp-button chn-button";
remBtn.style.top ="-14px";
remBtn.style.width ="12px";
remBtn.style.height ="12px";
remBtn.style.border ="2px solid white";
remBtn.style.borderRadius ="10px";
remBtn.style.opacity =".5";
remBtn.style.marginRight ="12px";
remBtn.style.position= "relative";
remBtn.title="Remember Playback Speed";
waitForTargetElement(
function(te){
var menuR=te.querySelector(".ytp-right-controls");
if (typeof menuR !== 'undefined' && menuR !== null) {
menuR.prepend(x200);
menuR.prepend(x175);
menuR.prepend(x150);
menuR.prepend(x125);
menuR.prepend(x100);
menuR.prepend(remBtn);
var autoSpeed = localStorage.getItem("chnAutoSpeed");
var savedSpeed = localStorage.getItem("chnCurrSpeed") || "x1";
if (autoSpeed==1) {
savedBtn=document.querySelector("."+savedSpeed);
savedBtn.click();
remBtn.style.borderColor="#3ea6ff";
}
remBtn.onmouseover = function(){this.style.opacity=1;}
remBtn.onmouseleave = function(){this.style.opacity=.5;}
remBtn.onclick = function(){
var autoSpeed = localStorage.getItem("chnAutoSpeed");
if(autoSpeed == 1){
localStorage.setItem("chnAutoSpeed",0);
remBtn.style.borderColor="";
}
else{
localStorage.setItem("chnAutoSpeed",1);
remBtn.style.borderColor="#3ea6ff"
}
}
}
}
);
function makeBtn(classname,txt,val){
txt = txt || "1x";
val = val || 1;
var btn = document.createElement("button");
btn.className = "ytp-button chn-button "+classname;
btn.style.top ="-13px";
btn.style.width ="auto";
btn.style.opacity =".5";
btn.style.marginRight ="5px";
btn.style.position= "relative";
btn.innerHTML = txt;
btns.push(btn);
btn.onmouseover = function(){this.style.opacity=1;}
btn.onmouseleave = function(){this.style.opacity=.5;}
btn.onclick = function(){
chnCurrSpeed=classname;
localStorage.setItem("chnCurrSpeed",classname);
setPlayerSpeed(val);
resetBtns();
this.style.fontWeight="800"
this.style.color="#3ea6ff"
}
return btn;
}
function resetBtns(){
var len = btns.length;
for(var i=0; i<len; i++){
btns[i].style.fontWeight="normal";
btns[i].style.color="";
}
}
/*
Functions taken from "YouTube custom speeds" script by Tom Saaleba
https://github.com/tomsaleeba
*/
function waitForTargetElement (callback) {
callCount++;
var strategies = [
function ytdWatch() { return document.getElementsByTagName('ytd-watch')[0] },
function playerContainer() { return document.getElementById('player-container') },
];
var targetElement
for (var i = 0; i < strategies.length; i++) {
var currStrategy = strategies[i];
targetElement = currStrategy();
if (targetElement) {
break;
}
}
if (typeof targetElement !== 'undefined' && targetElement !== null) {
callback(targetElement);
return;
}
var waitMs = Math.max(10 * callCount, 2000);
setTimeout(function () {
waitForTargetElement(callback);
}, waitMs);
}
function setPlayerSpeed(newSpeed) {
document.getElementsByClassName('html5-main-video')[0].playbackRate = newSpeed;
}