视频快进!
// ==UserScript==
// @name 视频快进
// @namespace https://bmmmd.com/
// @version 0.2
// @description 视频快进!
// @author bmm
// @match https://v.qq.com/x/cover/*/*.html*
// @match https://www.mgtv.com/b/*/*.html*
// @match https://www.iqiyi.com/v_*.html*
// @match https://v.youku.com/v_show/*
// @match https://www.youtube.com/watch?v=*
// @match https://www.bilibili.com/video/*/*
// @match https://www.acfun.cn/v/*
// @grant none
// @run-at document-idle
// @license GPLv3
// ==/UserScript==
(function () {
'use strict';
/* 配置 */
let playbackRate = 3; // 默认快进速度
const holdKey = '.'; // 长按快进模式按钮
const clickKey = ','; // 点击快进模式按钮
const showTips = true; // 是否显示快进提示
/**
* 快进提示
* @param text 提示文本
*/
const tips = (text, video) => {
if (!showTips) { return; }
let tipsDIV = document.querySelector('#bmmmd_video_fast_tips');
if (!tipsDIV) {
tipsDIV = document.createElement("div");
tipsDIV.id = "bmmmd_video_fast_tips";
tipsDIV.style.cssText = "position:absolute;width:6rem;height:6rem;border-radius:50%;background-color:rgba(255,255,255,0.5);display:none;justify-content:center;align-items:center;z-index:999999;font-size:2rem;color:#fff;";
document.body.appendChild(tipsDIV);
}
tipsDIV.innerHTML = text;
tipsDIV.style.display = "flex";
if (video) {
const rect = video.getBoundingClientRect();
tipsDIV.style.top = `${rect.top + rect.height / 2 - tipsDIV.offsetHeight / 2}px`;
tipsDIV.style.left = `${rect.left + rect.width / 2 - tipsDIV.offsetWidth / 2}px`;
} else {
tipsDIV.style.top = tipsDIV.style.left = "50%";
tipsDIV.style.transform = "translate(-50%, -50%)";
}
setTimeout(function () {
tipsDIV.style.display = "none";
}, 500);
}
/**
* 遍历所有video标签
* @param callback 回调函数
*/
const iterateVideos = (callback) => {
const videos = document.querySelectorAll('video');
for (const index in videos) {
if (!videos[index].getAttribute('src') || videos[index].videoHeight == 0 || videos[index].videoWidth == 0) { continue; }
callback(videos[index]);
}
}
/**
* 设置视频播放速度
* @param fast 快速播放 or 恢复
*/
const changePlaybackRate = (fast = true) => {
iterateVideos((video) => {
if (fast) {
video.originalPlaybackRate = video.playbackRate;
video.playbackRate = playbackRate;
} else {
video.playbackRate = video.originalPlaybackRate ?? 1;
}
tips(`x${video.playbackRate}`, video);
});
}
let isPressed = false; // 是否按住
let isToggled = false; // 是否切换
/* 按下按钮 */
const handleKeyDown = (event) => {
// 长按只触发一次 忽略在输入框中的按键事件
if (event.repeat || event.target.tagName == "INPUT" || event.target.tagName == "TEXTAREA") { return; }
// 当前按下状态 且 按下的键是数字键 则修改播放速度
if ((isPressed || isToggled) && event.key >= 1 && event.key <= 9) {
playbackRate = Number(event.key);
iterateVideos((video) => {
video.playbackRate = playbackRate;
tips(`x${video.playbackRate}`, video);
});
} else if (event.key == holdKey) {
isPressed = true;
changePlaybackRate();
} else if (event.key == clickKey) {
isToggled = !isToggled;
changePlaybackRate(isToggled);
}
}
/* 松开按钮 */
const handleKeyUp = (event) => {
// 忽略在输入框中的按键事件
if (event.target.tagName == "INPUT" || event.target.tagName == "TEXTAREA") { return; }
if (event.key == holdKey) {
isPressed = false;
changePlaybackRate(false);
}
}
document.addEventListener('keydown', handleKeyDown);
document.addEventListener('keyup', handleKeyUp);
})();