// ==UserScript==
// @name         bilibili弹幕隐藏开关
// @namespace    http://tonyubalabala.org/
// @version      0.5
// @description  bilibili弹幕隐藏开关(快捷键N)
// @author       Tony
// @license       MIT
// @match        *://*.bilibili.com/*
// @grant        GM_addStyle
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';

    function mySwitch(danMu) {
        if(danMu) {
            if(danMu.style.visibility == "") danMu.style.visibility="hidden"
            else danMu.style.visibility=""
        }
    }
    document.addEventListener('keydown', function(e){
        if(e.keyCode == 78) {
            let danMu1 = document.getElementsByClassName("bilibili-player-video-danmaku")[0]
            let danMu2 = document.getElementsByClassName("bilibili-player-video-adv-danmaku")[0]
            let danMu3 = document.getElementsByClassName("bilibili-player-video-bas-danmaku")[0]
            let danMu4 = document.getElementsByClassName("bpx-player-row-dm-wrap")[0]
            mySwitch(danMu1)
            mySwitch(danMu2)
            mySwitch(danMu3)
            mySwitch(danMu4)
        }
    });

})();