Live Danmaku Controller

Automatically turn off the live streaming danmaku

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name                Live Danmaku Controller
// @name:en-US          Live Danmaku Controller
// @name:zh-CN          直播弹幕控制
// @name:zh-TW          直播彈幕控制
// @description         Automatically turn off the live streaming danmaku
// @description:en-US   Automatically turn off the live streaming danmaku
// @description:zh-CN   自动关闭直播弹幕
// @description:zh-TW   自動關閉直播彈幕
// @namespace           live-danmaku-controller
// @version             2021.10.06
// @author              Akatsuki Rui
// @license             MIT License
// @grant               GM_info
// @compatible          chrome Since Chrome 49.x
// @compatible          firefox Since Firefox 44.x
// @compatible          opera Since 17.x
// @run-at              document-idle
// @match               *://www.douyu.com/*
// @match               *://www.huya.com/*
// @match               *://www.yy.com/*
// ==/UserScript==

"use strict";

const SELECTOR = {
  "www.douyu.com": {
    on: "div[class^='showdanmu-']:not([class*='removed-'])",
    off: "div[class^='hidedanmu-']:not([class*='removed-'])",
  },
  "www.huya.com": {
    on: "div[id='player-danmu-btn'][title='关闭弹幕']",
    off: "div[id='player-danmu-btn'][title='开启弹幕']",
  },
  "www.yy.com": {
    on: "div[class~='yc__bullet-comments-btn'][title='关闭弹幕']",
    off: "div[class~='yc__bullet-comments-btn'][title='打开弹幕']",
  },
};

// Delay danmaku disabler for some sites (Default 10s)
const DELAY_TIME = 10000;
const DELAY_SITE = ["www.yy.com"];

const LIVE_SITE = document.location.hostname;

// Danmaku disabler
function disableDanmaku() {
  let button = document.querySelector(SELECTOR[LIVE_SITE].on);

  if (button) {
    button.click();
  }
  setTimeout(() => {
    if (document.querySelector(SELECTOR[LIVE_SITE].off) === null) {
      disableDanmaku();
    }
  }, 500);
}

// To fix the button is showing as OFF, but danmaku still appear
DELAY_SITE.includes(LIVE_SITE)
  ? setTimeout(disableDanmaku, DELAY_TIME)
  : disableDanmaku();