AtJumpCanceler

Cancel AtJump on Niconico.

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         AtJumpCanceler
// @namespace    AtJumpCanceler
// @version      0.0.2
// @description  Cancel AtJump on Niconico.
// @author       ymmtmdk
// @license      MIT License
// @match        https://www.nicovideo.jp/watch/*
// @grant        none
// ==/UserScript==

(function() {
  'use strict';
  const config = { attributes: true, childList: true, subtree: true };
  const targetNode = document.getElementsByClassName("VideoContainer")[0];
  console.debug(targetNode);
  const callback = function(mutationsList, observer) {
    for(const mutation of mutationsList) {
      if (mutation.type === 'childList') {
        for(const node of mutation.addedNodes) {
          if (node.className == 'VideoChangeConfirmationContainer') {
            console.debug(node);
            const button = node.getElementsByClassName("AtJumpConfirmationView-cancelButton")[0];
            console.debug(button);
            button.click();
          }
        }
      }
    }
  };

  const observer = new MutationObserver(callback);
  observer.observe(targetNode, config);
})();