douyu优化斗鱼web播放器，通过关闭直播间全屏时的背景虚化效果来解决闪屏卡顿的问题，屏蔽独立直播间的弹幕显示，移除文字水印，添加了一些快捷键。暴力隐藏页面元素，获得纯净观看体验
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// ==UserScript==
// @name 优化斗鱼web播放器
// @namespace https://www.liebev.site/monkey/better-douyu
// @version 2.2
// @description douyu优化斗鱼web播放器，通过关闭直播间全屏时的背景虚化效果来解决闪屏卡顿的问题，屏蔽独立直播间的弹幕显示，移除文字水印，添加了一些快捷键。暴力隐藏页面元素，获得纯净观看体验
// @author LiebeV
// @license MIT: Copyright (c) 2023 LiebeV
// @match https://www.douyu.com/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=douyu.com
// @grant GM_registerMenuCommand
// @grant GM_getValue
// @grant GM_setValue
// ==/UserScript==
"use strict";
//更新日志，v2.2，临时添加了更好的多路观看模式（ALT+ M）,这只是个实验性内容，没有对应的控件，且会暴力覆写网页原有结构（！慎用）
//**NOTE**:之于页面上其他不想要看到的东西，请搭配其他例如AdBlock之类的专业广告屏蔽器使用，本脚本仅提供暴力隐藏的功能
//**NOTE**:暴力隐藏无法撤销，请刷新网页以恢复
//已知问题，暴力重写导致的各种问题
//更新计划，完整重写（请关注主页新项目--“全等级弹幕屏蔽”，“优化斗鱼web鱼吧”）
// 定义一些let变量
let roomIds = GM_getValue("roomIds", []);
const userRoomIds = roomIds;
// let isFull = 0;
// let isWide = 0;
var IntervalId;
const target_xpath = "/html/body/section/main/div[4]/div[1]/div[4]";
let IntervalRun = false;
const listenerMap = new Map([
["l", rewrite],
["u", full],
["w", wide],
["k", hide],
["m", multi],
]);
// 屏蔽虚化背景以及文字水印的css
async function blur() {
console.debug("已经创建blur样式表");
return `._1Osm4fzGmcuRK9M8IVy3u6,.watermark-442a18,.is-ybHotDebate,.view-67255d.zoomIn-0f4645{visibility: hidden !important;}`;
}
// 屏蔽右侧弹幕区及飘屏弹幕区的css
// 保留礼物展示
async function danmu() {
const url = window.location.href;
if (userRoomIds.some((roomId) => url.includes(roomId))) {
console.debug("已经创建danmu样式表");
return `.Barrage-main,.Barrage-topFloater,.comment-37342a {visibility: hidden !important;}`;
} else {
console.debug("无需更新danmu样式表");
return `.Barrage-main,.Barrage-topFloater,.comment-37342a {visibility: unset !important;}`;
}
}
// 用于合并其他本人制作的脚本中生成的css
async function addStyle(css) {
const liebev = document.getElementById("LiebeV");
// console.debug(liebev);
if (liebev) {
liebev.innerHTML = css;
console.debug("原css已更新");
} else {
// 此脚本单独运作时创建liebev标签
const style = document.createElement("style");
style.id = "LiebeV";
style.type = "text/css";
style.appendChild(document.createTextNode(css));
document.head.appendChild(style);
console.debug("新css已插入");
}
}
async function showSettings() {
let message = "当前设置的房间号列表：\n";
const idList = GM_getValue("roomIds", []);
for (let i = 0; i < idList.length; i++) {
message += `${i + 1}. ${idList[i]}\n`;
}
const roomIdInput = prompt(`${message}\n请输入要移除（恢复）弹幕的房间号房间号：`);
if (roomIdInput) {
updateRoomId(roomIdInput);
}
}
GM_registerMenuCommand("房间号设置", showSettings);
// 接受用户输入，进入判断分支
async function updateRoomId(roomId) {
if (!roomIds.includes(roomId)) {
roomIds.push(roomId);
console.debug(`已添加房间号 ${roomId}`);
GM_setValue("roomIds", roomIds);
await DMbye();
} else {
const index = roomIds.indexOf(roomId);
if (index !== -1) {
roomIds.splice(index, 1);
console.debug(`已移除房间号 ${roomId}`);
GM_setValue("roomIds", roomIds);
await DMback();
} else {
console.debug(`输入不合法`);
}
}
}
// DMbye和back是setting修改时调用的函数
async function DMbye() {
const css = `._1Osm4fzGmcuRK9M8IVy3u6,.watermark-442a18,.is-ybHotDebate.view-67255d.zoomIn-0f4645{visibility: hidden !important;}.Barrage-main,.Barrage-topFloater,.comment-37342a {visibility: hidden !important;}`;
addStyle(css);
}
async function DMback() {
const css = `._1Osm4fzGmcuRK9M8IVy3u6,.watermark-442a18,.is-ybHotDebate.view-67255d.zoomIn-0f4645{visibility: hidden !important;}.Barrage-main,.Barrage-topFloater,.comment-37342a {visibility: unset !important;}`;
addStyle(css);
}
async function listener() {
for (const [key, func] of listenerMap) {
document.addEventListener("keydown", function (event) {
if ((event.getModifierState("Alt") || event.getModifierState("AltGraph")) && event.key.toLowerCase() === key) {
func();
}
});
}
document.addEventListener("keydown", function (event) {
if ((event.getModifierState("Alt") || event.getModifierState("AltGraph")) && event.key >= "1" && event.key <= "5") {
// console.debug("RES快捷键触发");
res(parseInt(event.key));
}
});
document.addEventListener("keydown", function (event) {
if ((event.getModifierState("Alt") || event.getModifierState("AltGraph")) && event.key >= "6" && event.key <= "9") {
// console.debug("LINE快捷键触发");
line(parseInt(event.key));
}
});
}
// 类似DMbye和back，但是由快捷键触发
async function rewrite() {
const liebev = document.getElementById("LiebeV");
const checker = liebev.innerHTML;
var css;
if (checker.indexOf(".Barrage-main,.Barrage-topFloater,.comment-37342a {visibility: unset !important;}") !== -1) {
css = checker.replace(".Barrage-main,.Barrage-topFloater,.comment-37342a {visibility: unset !important;}", ".Barrage-main,.Barrage-topFloater,.comment-37342a {visibility: hidden !important;}");
} else {
css = checker.replace(".Barrage-main,.Barrage-topFloater,.comment-37342a {visibility: hidden !important;}", ".Barrage-main,.Barrage-topFloater,.comment-37342a {visibility: unset !important;}");
}
// console.debug(css);
addStyle(css);
}
// 发送浏览器全屏/退出全屏事件
// 无需等待控件加载完成
async function full() {
if (!document.fullscreenElement) {
document.querySelector("#js-player-video-case").requestFullscreen();
} else {
document.exitFullscreen();
}
}
// 模拟双击".video-container-dbc7dc"
// 因为网页原本就提供了双击播放器来切换的功能，故不做修改
async function wide() {
let evt = new MouseEvent("dblclick", {
bubbles: true,
cancelable: true,
});
document.querySelector(".video-container-dbc7dc").dispatchEvent(evt);
}
// 点击原播放器控件来调整清晰度
// 最多只见过5个选项。原画/8M/4M/超清/高清。溢出也不会影响
async function res(numberkey) {
const resinput = document.querySelector(".tipItem-898596 input[value='画质 ']");
const resul = resinput.nextSibling;
let reslist = [];
resul.childNodes.forEach(function (li) {
reslist.push(li);
});
// console.debug(reslist);
const choice = numberkey - 1;
reslist[choice].click();
}
// 找到了可以用于切换线路可点击的标签
// 最多只见过4个选项。溢出也不会影响
async function line(numberkey) {
const lineinput = document.querySelectorAll("ul.menu-da2a9e li");
const alllines = Array.from(lineinput).filter((li) => li.textContent.includes("线路"));
let linelist = [];
alllines.forEach(function (li) {
linelist.push(li);
});
const choice = numberkey - 6;
linelist[choice].click();
}
// *********************暴力************待优化****************
const videos = () => {
return document.querySelectorAll("video");
};
function createElement() {
const container = document.createElement("div");
container.classList.add("liebev-multi");
videos().forEach((video) => {
container.appendChild(video);
});
document.body.appendChild(container);
}
function adjust_size(target) {
let isIn = false;
target.addEventListener("mouseover", (event) => {
isIn = true;
});
target.addEventListener("mouseout", (event) => {
isIn = false;
});
target.addEventListener("wheel", (event) => {
if (event.deltaY && isIn) {
const adjustment = event.deltaY / -10;
const currentWidth = target.offsetWidth;
const currentHeight = target.offsetHeight;
target.style.width = `${currentWidth + adjustment}px`;
target.style.height = `${currentHeight + adjustment}px`;
}
});
}
function adjust_position(target) {
let isDragging = false;
let startX = 0;
let startY = 0;
const moveAt = (pageX, pageY) => {
const deltaX = pageX - startX;
const deltaY = pageY - startY;
const rect = target.getBoundingClientRect();
target.style.left = rect.left + deltaX + "px";
target.style.top = rect.top + deltaY + "px";
startX = pageX;
startY = pageY;
};
target.addEventListener("mousedown", function (event) {
isDragging = true;
target.style.cursor = "move";
startX = event.pageX;
startY = event.pageY;
document.addEventListener("mousemove", onMouseMove);
});
document.addEventListener("mouseup", function () {
isDragging = false;
target.style.cursor = "default";
document.removeEventListener("mousemove", onMouseMove);
});
const onMouseMove = function (event) {
if (isDragging) {
moveAt(event.pageX, event.pageY);
}
};
}
function addListeners(target) {
adjust_size(target);
adjust_position(target);
}
function multi() {
createElement();
const container = document.querySelector(".liebev-multi");
container.requestFullscreen();
videos().forEach((video) => {
video.classList.remove("_3kBBGV3-d-EIxmN6JRZPar");
video.style.setProperty("position", "absolute", "important");
video.style.setProperty("left", "0", "important");
video.style.setProperty("top", "0", "important");
video.style.setProperty("width", "960px", "important");
video.style.setProperty("height", "540px", "important");
addListeners(video);
});
}
// *********************暴力************待优化****************
// 点击原弹幕区控件来清除DOM节点（网页默认DOM上限为200）
async function rightdomremove() {
var clearbtn = document.querySelector(".Barrage-toolbarClear");
clearbtn.click();
console.debug("doms been removed");
}
async function ifintervalrun() {
if (IntervalRun == true) {
// 定时触发清屏（60s）
IntervalId = setInterval(rightdomremove, 60 * 1000);
IntervalRun = false;
console.debug("已设置定时清屏");
} else {
clearInterval(IntervalId);
IntervalRun = true;
console.debug("已关闭定时清屏");
}
}
GM_registerMenuCommand("定时清屏右侧弹幕", function () {
const isConfirm = confirm(
// 因为初始化调用时更改了IntervalRun的值，所以表达式逻辑相反
`当前定时器状态：${IntervalRun ? "禁用" : "启用"}\n是否切换定时器状态？`
);
if (isConfirm) {
ifintervalrun();
}
});
// 根据/的位置切片Xpath
async function slice() {
const parts = target_xpath.split("/");
let xpaths = [];
for (let i = 1; i < parts.length; i++) {
xpaths.push("/" + parts.slice(1, i + 1).join("/"));
}
console.debug(`来自**优化斗鱼web播放器**:全部的Xpath [${xpaths}]`);
return xpaths;
}
// 选中每个元素
async function select(xpaths) {
let elements = [];
xpaths.forEach(function (xpath) {
var element = document.evaluate(xpath, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
elements.push(element);
});
return elements;
}
function isDescendant(parent, child) {
var node = child.parentNode;
while (node != null) {
if (node === parent) {
return true;
}
node = node.parentNode;
}
return false;
}
// 隐藏所有其他元素
function hide_all(elements, target_element) {
document.querySelectorAll("body *").forEach(function (node) {
let is_protected = elements.includes(node) || isDescendant(target_element, node);
if (!is_protected) {
node.style.display = "none";
}
});
}
async function force_hide(target_element) {
const protected_xpaths = await slice();
const protected_elements = await select(protected_xpaths);
hide_all(protected_elements, target_element);
}
function hide() {
if (target_xpath) {
const target_element = document.evaluate(target_xpath, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
let checker;
try {
checker = target_element.className;
} catch (TypeError) {
console.debug("来自**优化斗鱼web播放器**: Error Code [hide-0] ---> 页面上没有找到播放器");
return;
}
if (checker === "layout-Player-video") {
force_hide(target_element);
} else {
console.debug("来自**优化斗鱼web播放器**: Error Code [hide-1] ---> Xpath描述的元素与预期不符");
}
}
}
(async function () {
const blurcss = await blur();
const danmucss = await danmu();
const css = blurcss + danmucss;
console.debug("样式表已合并" + css);
addStyle(css);
// 添加全部eventlistener
listener();
ifintervalrun();
})();