Adds playback speed buttons to youtube player control bar.
当前为
// ==UserScript==
// @name YouTube Playback Speed Buttons
// @description Adds playback speed buttons to youtube player control bar.
// @version 0.1.1
// @license MIT
// @author bowencool
// @match https://www.youtube.com/watch*
// @namespace https://www.youtube.com/
// @author bowencool
// @license MIT
// @supportURL https://github.com/bowencool/Tampermonkey-Scripts/issues
// @icon https://www.google.com/s2/favicons?sz=64&domain=youtube.com
// @run-at document-end
// ==/UserScript==
"use strict";
function waitForElementToExist(selector) {
return new Promise((resolve) => {
if (document.querySelector(selector)) {
return resolve(document.querySelector(selector));
}
const observer = new MutationObserver(() => {
if (document.querySelector(selector)) {
resolve(document.querySelector(selector));
observer.disconnect();
}
});
observer.observe(document.body, {
subtree: true,
childList: true,
});
});
}
function setPlayerSpeed(newSpeed) {
document.getElementsByClassName("html5-main-video")[0].playbackRate =
newSpeed;
}
function insertStyle() {
const header = document.header;
const style = document.createElement("style");
style.innerHTML = `
.speed-button {
}
.speed-button.active, .speed-button:hover {
color: white;
}
`;
header.appendChild(style);
}
async function main() {
const menuR = await waitForElementToExist(".ytp-right-controls");
if (typeof menuR !== "undefined" && menuR !== null) {
[2, 1.5, 1.25, 1, 0.75, 0.5].forEach((speed) => {
const button = document.createElement("button");
button.innerText = `x${speed}`;
button.classList.add("ytp-button speed-button");
button.onclick = () => setPlayerSpeed(speed);
menuR.prepend(button);
});
}
}
main();