Copy/Paste for noVNC Proxmox

noVNCCopyPasteProxmox.user.js

// ==UserScript==
// @name         noVNC Paste for Proxmox
// @namespace    http://tampermonkey.net/
// @version      0.3
// @description  Pastes text into a noVNC window (for use with Proxmox specifically)
// @author       Chester Enright
// @match        https://*
// @include      /^.*novnc.*/
// @require http://code.jquery.com/jquery-3.3.1.min.js
// @grant        none
// ==/UserScript==
const startDelay = 2000
const keyDelay = 50
;(function () {
    'use strict'
    window.sendString = function(text) {

        var el = document.getElementById("canvas-id")
        text.split("").forEach((x,i)=>{
            setTimeout(()=>{
                 var needs_shift = x.match(/[A-Z!@#$%^&*()_+{}:\"<>?~|]/)
                 let evt
                 if (needs_shift) {

                     evt = new KeyboardEvent("keydown", {keyCode: 16})
                     el.dispatchEvent(evt)
                     evt = new KeyboardEvent("keydown", {key: x, shiftKey: true})
                     el.dispatchEvent(evt)
                     evt = new KeyboardEvent("keyup", {keyCode: 16})
                     el.dispatchEvent(evt)

                 }else{
                     evt = new KeyboardEvent("keydown", {key: x})
                }
                el.dispatchEvent(evt)
            }, keyDelay * (i + 1))
        })

    }


    $(document).ready(function() {
        setTimeout(()=>{
            console.log("Starting up noVNC Copy/Paste (for Proxmox)")

            $("canvas").attr("id", "canvas-id")

            $("canvas").on("mousedown", (e) => {
                console.log(e.button, e.detail)
                if(e.button == 0 && e.detail === 4){ // Quad Click
                    setTimeout(() => {
                        navigator.clipboard.readText().then(text =>{
                            console.log('sendString', text)
                            window.sendString(text)
                        })
                    }, startDelay)
                }
            })
        }, 1000);
    })


})()