// ==UserScript==
// @name         b站 临时关闭弹幕 bilibili 哔哩哔哩
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  临时关闭一次视频弹幕，不会影响其他视频。
// @author       You
// @match        *://www.bilibili.com/video/*
// @match        *://www.bilibili.com/bangumi/play/*
// @grant        none
// ==/UserScript==
(function () {
function observation(mutations,observer){
inject()
}
const player = document.getElementById('bilibili-player')
const observer = new MutationObserver(observation)
observer.observe(player,{childList: true, subtree: true })
function inject() {
if(document.getElementById('danmaku-switch-once')){
return
}
const container = document.getElementsByClassName("bilibili-player-video-danmaku-root")[0];
if (container) {
const button = document.createElement("div");
button.innerText = "弹";
button.id = 'danmaku-switch-once'
button.classList.add('actived')
button.style = 'color:#00a1d6;margin-right:5pt;border:1px solid #00a1d6;border-radius:50%;height:17px;width:17px;line-height:17px;text-align:center;cursor:pointer;'
button.onclick = function(){
if(this.className.indexOf('active') > -1){
this.classList.remove('actived')
this.style.borderColor = '#757575'
this.style.color = '#757575'
document.getElementsByClassName('bilibili-player-video-danmaku')[0].style.visibility = 'hidden'
}else{
this.classList.add('actived')
this.style.borderColor = '#00a1d6'
this.style.color = '#00a1d6'
document.getElementsByClassName('bilibili-player-video-danmaku')[0].style.visibility = 'visible'
}
}
container.insertBefore(button, container.children[0]);
} else {
requestAnimationFrame(inject);
}
}
})();