Disable space bar scrolling

disable space bar scroll
换行
// ==UserScript==
// @name Disable space bar scrolling
// @namespace Disable Space bar scroll
// @version 0.1
// @description disable space bar scroll
// @author Space bar scroll
// @match https://www.youtube.com/*
// @grant none
// ==/UserScript==

(function() {
var k = function(action){
var eventObj = document.createEvent("Events");

eventObj.initEvent("keydown", true, true);
eventObj.keyCode = 75;
eventObj.which = 75;

document.body.dispatchEvent(eventObj);
};

var killSpaceBar = function(evt) {

var target = evt.target || {},
isInput = ("INPUT" == target.tagName || "TEXTAREA" == target.tagName || "SELECT" == target.tagName || "EMBED" == target.tagName);

// if we're an input or not a real target exit
if(isInput || !target.tagName) return;

// if we're a fake input like the comments exit
if(target && target.getAttribute && target.getAttribute('role') === 'textbox') return;

// ignore the space and send a 'k' to pause
if (evt.keyCode === 32) {
evt.preventDefault();
k();
}
};

document.addEventListener("keydown", killSpaceBar, false);

})();