ClickB8.io Upload - TemperMonkey

// ==UserScript==
// @name         ClickB8.io Uploader
// @namespace    *://clickb8.io/*
// @match        *://clickb8.io/*
// @version      2.0
// @description  Upload to ClickB8 with a single click!
// @run-at       document-start
// @author       CX
// @grant        none
// ==/UserScript==

var imageLoader = document.createElement('input');
imageLoader.type = "file";
imageLoader.addEventListener('change', handleImage, false);
var canvas = document.getElementById('thumbnailPaintCanvas');
var ctx = canvas.getContext('2d');
function handleImage(e){
    var reader = new FileReader();
    reader.onload = function(event){
        var img = new Image();
        img.onload = function(){
            canvas.width = img.width;
            canvas.height = img.height;
            ctx.drawImage(img,0,0);
        };
        img.src = event.target.result;
    };
    reader.readAsDataURL(e.target.files[0]);
}
imageLoader.style.display = "block";
imageLoader.style.margin = "10px auto 0";
imageLoader.style.fontSize = "20px";
document.getElementById('createVideoContainer').appendChild(imageLoader);