YT: not interested in one click

Hover a thumbnail to see icons at the right: "block video" is an and "block channel"
当前为 2020-02-26 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name           YT: not interested in one click
// @description    Hover a thumbnail to see icons at the right: "block video" is an   and "block channel" 
// @version        1.0.0

// @match          https://www.youtube.com/*

// @noframes
// @grant          none

// @author         wOxxOm
// @namespace      wOxxOm.scripts
// @license        MIT License
// ==/UserScript==

const ME = 'yt-one-click-dismiss';
const NAV_FINISH = 'yt-navigate-finish';
const THUMB_TAG = 'ytd-thumbnail';

const ELEMENTS = document.createDocumentFragment();
let STYLE;

addEventListener('mouseover', onHover);
addEventListener('click', onClick);

function onHover(e) {
  const thumb = e.composedPath().find(el => el.localName === THUMB_TAG);
  if (thumb && !thumb.getElementsByClassName(ME)[0]) {
    if (!STYLE) init(thumb);
    thumb.appendChild((
      thumb.data.playlistId || thumb.closest('ytd-compact-video-renderer')
        ? ELEMENTS.firstChild
        : ELEMENTS
    ).cloneNode(true));
  }
}

async function onClick({target}) {
  const {block} = target.classList.contains(ME) && target.dataset;
  if (!block) return;
  const index = STYLE.sheet.insertRule('ytd-menu-popup-renderer { display: none !important }');
  const entry = target.closest('ytd-rich-item-renderer, ytd-compact-video-renderer');
  const more = entry.querySelector('yt-icon-button.dropdown-trigger');
  await 0;
  more.dispatchEvent(new Event('tap'));
  await 0;
  for (const el of document.querySelector('ytd-menu-popup-renderer [role="listbox"]').children) {
    if (block === 'video' && el.data.icon.iconType === 'NOT_INTERESTED' ||
        block === 'channel' && el.data.icon.iconType === 'REMOVE') {
      el.click();
      await new Promise(setTimeout);
      break;
    }
  }
  document.body.click()
  STYLE.sheet.deleteRule(index);
}

function init(thumb) {
  try {
    const {items} = thumb.data.menu.menuRenderer;
    for (const [type, iconType, title] of [
      ['video', 'NOT_INTERESTED', 'Not interested!'],
      ['channel', 'REMOVE', "Don't recommend channel!"],
    ]) {
      const el = document.createElement('div');
      el.className = ME;
      el.title = title;
      el.dataset.block = type;
      ELEMENTS.appendChild(el)
      for (const {menuServiceItemRenderer: {icon, text}} of items) {
        if (icon.iconType === iconType) {
          el.title = text.runs[0].text;
          break;
        }
      }
    }
  } catch (e) {}
  STYLE = document.createElement('style');
  STYLE.textContent = /*language=CSS*/ `
${THUMB_TAG}:hover .${ME} {
  display: block;
}
.${ME} {
  display: none;
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 100%;
  border: 2px solid #fff;
  right: 10px;
  box-shadow: .5px .5px 7px #000;
  cursor: pointer;
  opacity: .75;
  z-index: 100;
}
.${ME}:hover {
  opacity: 1;
}
.${ME}:active {
  color: yellow;
}
.${ME}[data-block="video"] {
  top: 70px;
}
.${ME}[data-block="channel"] {
  top: 100px;
}
.${ME}::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  height: 0;
  margin: auto;
  border: none;
  border-bottom: 2px solid #fff;
}
.${ME}[data-block="video"]::after {
  transform: rotate(45deg);
}
.${ME}[data-block="channel"]::after {
  margin: auto 3px;
}
`.replace(/;/g, '!important;');
  document.head.appendChild(STYLE);
}