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Allows custom brush sizes, colors, and even importing images into Jackbox's drawing games!
// ==UserScript==
// @name JackboxDrawer
// @description Allows custom brush sizes, colors, and even importing images into Jackbox's drawing games!
// @namespace ipodtouch0218/JackboxDrawer
// @version 1.6.1
// @include *://jackbox.tv/*
// ==/UserScript==
//Catch outgoing messages through stringify and replace drawing data.
//Has to be done through eval to break through GreaseMonkey's sandboxing.
window.eval(`
ignore = 0
oldStringify = JSON.stringify
JSON.stringify = function(arg) {
if (ignore > 0) {
console.log('ignoring ' + arg.params)
ignore--
return oldStringify(arg)
}
if (typeof(arg.params) == 'undefined' || arg.params == null) {
return oldStringify(arg)
}
data = arg.params
if (typeof(tempvar) == 'undefined' || tempvar === null) {
//No custom code ready, most likely a vanilla subimssion. Ignore this one.
return oldStringify(arg)
}
eval(tempvar)
tempvar = null
return oldStringify(arg)
}
`)
//Handle games and their differences.
var games = {
"drawful_1": {
submitDrawing: function() {
document.getElementById("drawful-submitdrawing").click()
},
isInDrawingMode: function() {
return !document.getElementsByClassName("state-draw")[0].getAttribute("class").includes("pt-page-off")
},
getSketchpad: function() {
return document.getElementsByClassName("sketchpad")[0]
}
},
"drawful_2": {
submitDrawing: function() {
document.getElementById("submitdrawing").click()
},
isInDrawingMode: function() {
return document.getElementsByClassName("Draw")[0] != null
},
getSketchpad: function() {
return document.getElementById("fullLayer")
}
},
"bidiots": {
submitDrawing: function() {
document.getElementById("auction-submitdrawing").click()
},
isInDrawingMode: function() {
return !document.getElementById("state-draw").getAttribute("class").includes("pt-page-off")
},
getSketchpad: function() {
return document.getElementById("auction-sketchpad")
}
},
"tee_ko": {
submitDrawing: function() {
document.getElementById("awshirt-submitdrawing").click()
},
isInDrawingMode: function() {
return !document.getElementById("state-draw").getAttribute("class").includes("pt-page-off")
},
getSketchpad: function() {
return document.getElementsByClassName("awshirt-sketchpad")[0]
}
},
"push_the_button": {
submitDrawing: function() {
document.getElementById("submitdrawing").click()
},
isInDrawingMode: function() {
return document.getElementsByClassName("Draw")[0] != null
},
getSketchpad: function() {
return document.getElementById("fullLayer")
}
},
"trivia_murder_party_1": {
submitDrawing: function() {
document.getElementById("enter-single-drawing-submit").click()
},
isInDrawingMode: function() {
return !document.getElementById("state-enter-single-drawing").getAttribute("class").includes("pt-page-off")
},
getSketchpad: function() {
return document.getElementById("sketchpad")
}
},
"patentlystupid": {
submitDrawing: function() {
document.getElementById("submitdrawing").click()
},
isInDrawingMode: function() {
return document.getElementsByClassName("Draw")[0] != null
},
getSketchpad: function() {
return document.getElementById("fullLayer")
}
},
"champd_up": {
submitDrawing: function() {
if (document.getElementsByClassName("button choice-button btn btn-lg")[0].innerText == "SUBMIT") {
document.getElementsByClassName("button choice-button btn btn-lg")[0].click()
}
},
submitName: function() {
btn = document.getElementsByClassName("button choice-button btn btn-lg")[0]
if (btn.getAttribute("data-action") == "name") {
btn.click()
document.getElementsByClassName("swal2-input")[0].value = "test"
document.getElementsByClassName("swal2-confirm swal2-styled")[0].click()
}
},
canSubmitNormally: function() {
return document.getElementsByClassName("button choice-button btn btn-lg")[0].innerText == "SUBMIT"
},
isInDrawingMode: function() {
return document.getElementsByClassName("Draw")[0] != null
},
getSketchpad: function() {
return document.getElementsByClassName("sketchpad fullLayer")[0]
}
}
}
//Keeps track of the game we're currently playing.
gameID = null
function updateGame(id) {
gameID = id
if (typeof(socket) !== 'undefined' && socket !== null) {
//Update the drawing app on what game we're playing.
socket.send("updategame:" + id)
}
}
//Is ran every time the document changes. Useful for finding which game we're currently playing.
var callback = function(mutationsList, observer) {
if (document.getElementById("page-drawful") != null) {
updateGame("drawful_1")
} else if (document.getElementsByClassName("drawful2international")[0] != null) {
updateGame("drawful_2")
} else if (document.getElementById("page-auction") !== null) {
updateGame("bidiots")
} else if (document.getElementById("page-awshirt") !== null) {
//Fun fact. Tee KO is actually internally called "awshirt" both on the website and in the game files.
updateGame("tee_ko")
} else if (document.getElementsByClassName("pushthebutton")[0] != null) {
//Yes, the class name has spaces.
updateGame("push_the_button")
} else if (document.getElementById("page-triviadeath") !== null) {
updateGame("trivia_murder_party_1")
} else if (document.getElementsByClassName("worldchamps")[0] != null) {
updateGame("champd_up")
} else if (document.getElementsByClassName("patentlystupid")[0] != null) {
updateGame("patentlystupid")
}
}
//chrome doesn't like the observer being setup now, lets just add it later???
setTimeout(function() {
//Initiate the DOM observer to run "callback" every time it changes.
var observer = new MutationObserver(callback)
var targetNode = document.getElementById('app')
var config = { attributes: true, childList: true, subtree: true }
observer.observe(targetNode, config)
}, 1000)
//Info related to communicating with the Java app.
var socket = null
var open = false
var firsttry = false
//We want to automatically attempt reconnects if the connection is dropped, use setInterval with some
//checks to make sure we don't make multiple connections.
setInterval(function() {
if (open || socket !== null) {
return
}
socket = new WebSocket("ws://127.0.0.1:2460")
socket.onopen = function(e) {
alert("Connection established with JackboxDrawer program.")
open = true
callback(null,null)
}
socket.onmessage = function(event) {
//Check for the proper version.
if (event.data.startsWith("version")) {
var version = event.data.split(":")[1]
if (version > 161) {
alert("Please update the JackboxDrawer Greasemonkey script!\nThe download can be found here: https://greasyfork.org/en/scripts/406893-jackboxdrawer")
} else if (version < 161) {
alert("Please update the JackboxDrawer Java program!\nThe download can be found here: https://github.com/ipodtouch0218/JackboxDrawer/releases")
}
return
}
//Save incoming code from the websocket in "tempvar". Needs to be eval'd to get through Greasemonkey's sandboxing.
//We could also use window.wrappedJSObject but this is what I thought of first. Either way, potental security breach right here.
window.eval("var tempvar = `" + event.data.replace("SUBMITNAME;","") + "`")
//Check to make sure we can actually DRAW right now.
//If not, even attempting to submit a drawing can easily crash our webpage.
var currentGame = games[gameID]
if (typeof (currentGame) === 'undefined' || currentGame === null) {
alert("Game not supported!")
return
}
if (!currentGame.isInDrawingMode()) {
alert("Cannot submit: Not in drawing mode!")
window.eval("var tempvar = null")
return
}
if (gameID == "champd_up") {
if (event.data.startsWith("SUBMITNAME;")) {
currentGame.submitName()
return
}
}
//Find the current sketchpad. We need it for later...
var sketchpad = currentGame.getSketchpad()
if (sketchpad === null) {
//Couldn't find it, we're probably can't draw right now. Somehow, the previous checks failed.
return
}
submit = true
if (gameID == "patentlystupid") {
window.eval("ignore = 1")
} else if (gameID == "champd_up") {
if (currentGame.canSubmitNormally()) {
window.eval("ignore = 1")
} else {
alert("You must submit a name first!\nUse the text box and \"Submit\" button under the color picker first!");
submit = false
}
}
//Simulate drawing on the sketchpad with mouse events. We can't access the sketchpad's info directly
//as it's kept track of internally, and the game never attempts to send any data if it's blank.
var rect = sketchpad.getBoundingClientRect()
var mouseEvent = document.createEvent('MouseEvents')
mouseEvent.clientX = rect.x + rect.width / 2
mouseEvent.clientY = rect.y + rect.height / 2
mouseEvent.initEvent("mousedown", true, false)
sketchpad.dispatchEvent(mouseEvent)
mouseEvent.clientX += 2
mouseEvent.initEvent("mousemove", true, false)
sketchpad.dispatchEvent(mouseEvent)
mouseEvent.initEvent("mouseup", true, false)
sketchpad.dispatchEvent(mouseEvent)
//Submit drawing and get ready to switch-a-roo.
if (submit)
currentGame.submitDrawing()
}
//Socket died, my dude.
socket.onclose = function(event) {
if (!open) return
alert("Connection lost with JackboxDrawer program. Retrying...")
open = false
socket = null
}
//Socket died PAINFULLY, my dude.
socket.onerror = function(error) {
if (!firsttry) {
alert("Failed to connect to JackboxDrawer. \nI will attempt to reconnect in the background...")
firsttry = true
}
socket = null
}
}, 1000)