更强大地识别网页中的视频，在右下角显示倍速操作界面，可隐藏为一个淡色圆形图标并显示倍速数字，显示操作界面时圆形图标隐藏。同时自动将音量设置为 30%。
// ==UserScript==
// @name 视频加速器+音量设置
// @namespace http://tampermonkey.net/
// @version 1.2
// @description 更强大地识别网页中的视频，在右下角显示倍速操作界面，可隐藏为一个淡色圆形图标并显示倍速数字，显示操作界面时圆形图标隐藏。同时自动将音量设置为 30%。
// @license MIT
// @author 失辛向南
// @match *://*/*
// @grant none
// ==/UserScript==
(function () {
'use strict';
let speedControlContainer;
let speedSelect;
let isVisible = false;
let iconContainer;
function createSpeedControlUI() {
// 创建倍速控制界面容器
speedControlContainer = document.createElement('div');
speedControlContainer.style.position = 'fixed';
speedControlContainer.style.bottom = '20px';
speedControlContainer.style.right = '20px';
speedControlContainer.style.backgroundColor = 'rgba(30, 30, 30, 0.8)';
speedControlContainer.style.padding = '15px';
speedControlContainer.style.borderRadius = '10px';
speedControlContainer.style.color = '#fff';
speedControlContainer.style.zIndex = '9999';
speedControlContainer.style.display = 'none';
// 创建倍速标签
const speedLabel = document.createElement('span');
speedLabel.textContent = '播放速度：';
speedControlContainer.appendChild(speedLabel);
// 创建下拉选择框
speedSelect = document.createElement('select');
speedSelect.classList.add('custom-speed-select');
speedSelect.style.backgroundColor = 'rgba(50, 50, 50, 0.8)';
speedSelect.style.color = '#fff';
speedSelect.style.border = 'none';
speedSelect.style.outline = 'none';
speedSelect.style.appearance = 'none';
speedSelect.style.padding = '5px 10px';
speedSelect.style.borderRadius = '5px';
for (let i = 0.25; i <= 5; i += 0.25) {
const option = document.createElement('option');
option.value = i;
option.textContent = i + 'x';
option.style.backgroundColor = 'rgba(50, 50, 50, 0.8)';
option.style.color = '#fff';
speedSelect.appendChild(option);
}
speedSelect.value = '1';
speedControlContainer.appendChild(speedSelect);
document.body.appendChild(speedControlContainer);
speedSelect.addEventListener('change', updateVideoSpeeds);
// 创建图标容器
iconContainer = document.createElement('div');
iconContainer.style.position = 'fixed';
iconContainer.style.bottom = '20px';
iconContainer.style.right = '20px';
iconContainer.style.width = '40px';
iconContainer.style.height = '40px';
iconContainer.style.backgroundColor = 'rgba(220, 220, 220, 0.6)';
iconContainer.style.borderRadius = '50%';
iconContainer.style.textAlign = 'center';
iconContainer.style.lineHeight = '40px';
iconContainer.style.cursor = 'pointer';
iconContainer.style.zIndex = '9999';
document.body.appendChild(iconContainer);
iconContainer.addEventListener('click', toggleVisibility);
document.addEventListener('mousemove', handleMouseMove);
const style = document.createElement('style');
style.textContent = `
.custom-speed-select option {
color: #ffffff;
}
.custom-speed-select {
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="10" height="10" fill="white"><polygon points="0,0 10,0 5,5"/></svg>');
background-repeat: no-repeat;
background-position: right 5px center;
}
`;
document.head.appendChild(style);
}
function updateVideoSpeeds() {
const videos = findAllVideoElements();
for (let video of videos) {
video.playbackRate = parseFloat(speedSelect.value);
video.volume = 0.3; // 设置音量为 30%
}
updateIconText();
}
function checkForVideos() {
const videos = findAllVideoElements();
if (videos.length > 0) {
if (!speedControlContainer) {
createSpeedControlUI();
}
updateVideoSpeeds();
} else {
if (speedControlContainer) {
speedControlContainer.remove();
speedControlContainer = null;
speedSelect = null;
iconContainer.remove();
iconContainer = null;
}
}
}
function isVideoPage() {
const videoElements = findAllVideoElements();
return videoElements.length > 0;
}
function handleMouseMove(event) {
if (!isVisible && isInsideIcon(event.clientX, event.clientY)) {
showContainer();
} else if (isVisible &&!isInsideContainer(event.clientX, event.clientY)) {
hideContainer();
}
}
function isInsideIcon(x, y) {
const iconRect = iconContainer.getBoundingClientRect();
return x >= iconRect.left && x <= iconRect.right && y >= iconRect.top && y <= iconRect.bottom;
}
function isInsideContainer(x, y) {
const containerRect = speedControlContainer.getBoundingClientRect();
return x >= containerRect.left && x <= containerRect.right && y >= containerRect.top && y <= containerRect.bottom;
}
function showContainer() {
speedControlContainer.style.display = 'block';
iconContainer.style.display = 'none';
isVisible = true;
}
function hideContainer() {
speedControlContainer.style.display = 'none';
iconContainer.style.display = 'block';
isVisible = false;
}
function toggleVisibility() {
if (isVisible) {
hideContainer();
} else {
showContainer();
}
}
function updateIconText() {
iconContainer.textContent = speedSelect.value + 'x';
}
function findAllVideoElements() {
const videoTags = Array.from(document.getElementsByTagName('video'));
const iframeVideos = Array.from(document.querySelectorAll('iframe[src*=".mp4"], iframe[src*=".webm"], iframe[src*=".ogg"]'))
.map(element => {
if (element.tagName === 'IFRAME') {
return element.contentDocument? element.contentDocument.getElementsByTagName('video')[0] : null;
} else {
return null;
}
})
.filter(video => video!== null);
const customVideoElements = Array.from(document.querySelectorAll('[data-video]'))
.map(element => {
const videoSrc = element.getAttribute('data-video');
if (videoSrc && (videoSrc.endsWith('.mp4') || videoSrc.endsWith('.webm') || videoSrc.endsWith('.ogg'))) {
const video = document.createElement('video');
video.src = videoSrc;
return video;
} else {
return null;
}
})
.filter(video => video!== null);
const potentialVideoElements = Array.from(document.querySelectorAll('*'))
.filter(element => {
const backgroundImage = window.getComputedStyle(element).backgroundImage;
return backgroundImage && (backgroundImage.includes('.mp4') || backgroundImage.includes('.webm') || backgroundImage.includes('.ogg'));
})
.map(element => {
const video = document.createElement('video');
const backgroundImage = window.getComputedStyle(element).backgroundImage;
const videoSrc = backgroundImage.match(/url\((.*?)\)/)[1];
video.src = videoSrc;
return video;
})
.filter(video => video!== null);
return videoTags.concat(iframeVideos).concat(customVideoElements).concat(potentialVideoElements);
}
window.addEventListener('load', () => {
if (isVideoPage()) {
checkForVideos();
}
});
window.addEventListener('DOMContentLoaded', () => {
if (isVideoPage()) {
checkForVideos();
}
});
})();
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