// ==UserScript==
// @name         Youtube 评论区屏蔽工具
// @name:en      Youtube comments blocker
// @namespace    ckylin-script-ytb-comments-blocker
// @version      0.1
// @description  屏蔽指定上传者的视频下方评论
// @description:en Block comments from specified uploader's videos.
// @author       CKylinMC
// @match        https://www.youtube.com/watch?v=*
// @grant        unsafeWindow
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_info
// @grant        GM_registerMenuCommand
// @grant        GM_unregisterMenuCommand
// @license      GPL-3.0-only
// ==/UserScript==
(function() {
'use strict';
const wait = t => new Promise(r => setTimeout(r,t));
const waitFor = async q => {
let trialTimes = 50;
while(--trialTimes>=0){
let dom = document.querySelector(q);
if(dom) return dom;
await wait(200);
}
return null;
}
const hasBlocked = async link => (await GM_getValue(link))=="Blocked";
const addBlock = async link => {
if(!(await hasBlocked(link))){
await GM_setValue(link,"Blocked");
}
}
const unBlock = async link => {
if((await hasBlocked(link))){
await GM_setValue(link,"0");
}
}
const rmStyle = () => {
const doms = document.querySelectorAll("style.CK-ytb-blocker");
if(doms) [...doms].forEach(e=>e.remove());
}
const addStyle = s =>{
const style = document.createElement("style");
style.classList.add("CK-ytb-blocker");
style.innerHTML = s;
document.head.appendChild(style);
}
const menuId = {
lastMenu: null
}
function addBlockMenu(link){
if(menuId.lastMenu) GM_unregisterMenuCommand(menuId.lastMenu);
menuId.lastMenu = GM_registerMenuCommand("屏蔽此Uploader / Block this Uploader", async () => {
await addBlock(link);
tryDetect();
});
}
function addUnBlockMenu(link,ytd_comments){
if(menuId.lastMenu) GM_unregisterMenuCommand(menuId.lastMenu);
menuId.lastMenu = GM_registerMenuCommand("取消屏蔽此Uploader / Unblock this Uploader", async () => {
await unBlock(link);
const tip = document.querySelector("#CK-ytb-blocktip");
if(tip) tip.remove();
rmStyle();
ytd_comments.style.display = "block";
addBlockMenu(link);
});
}
async function tryDetect(){
const ytd_ch_link_q = "#text-container.ytd-channel-name a";
const ytd_ch_link_dom = await waitFor(ytd_ch_link_q);
if(!ytd_ch_link_dom) return console.log("[CommentsBlocker] No channel link detected.");
const ytd_ch_link_href = ytd_ch_link_dom.href;
if((await hasBlocked(ytd_ch_link_href))){
//addStyle(`ytd-comments,#comments{display:none!important;}`);
const ytd_comments = document.querySelector("#comments");
const blocktip = document.createElement("center");
addUnBlockMenu(ytd_ch_link_href,ytd_comments);
blocktip.id = "CK-ytb-blocktip";
blocktip.innerHTML = "Comments has been blocked.";
blocktip.style.color = getComputedStyle(ytd_ch_link_dom).color;
ytd_comments.parentNode.insertBefore(blocktip,ytd_comments);
ytd_comments.style.display = "none";
}else{
addBlockMenu(ytd_ch_link_href);
}
}
tryDetect();
})();