script.js

(async function () {
	var func = function () {
		try {
			const oldSendMessage = newWindow.chrome.runtime.sendMessage
			const BlacklistedEvents = ['mozvisibilitychange', 'webkitvisibilitychange', 'msvisibilitychange', 'visibilitychange', 'pagehide']
			
			const oldAddEventListener = newWindow.document.addEventListener;
			const kAssessmentAssistantExtensionId = "gndmhdcefbhlchkhipcnnbkcmicncehk"

			function MatchExtensionId(ExtensionId) {
				return ExtensionId === kAssessmentAssistantExtensionId
			}

			var fakeIsLocked = true
			function InterceptCommand(Payload, Callback) {
				console.log("Intercepted", Payload, Callback)
				switch (Payload.command) {
					case "isLocked":
						Callback({ locked: fakeIsLocked })
						return true
					case "lock":
						fakeIsLocked = true
						Callback({ locked: fakeIsLocked })
						return true
					case "unlock":
						fakeIsLocked = false
						Callback({ locked: fakeIsLocked })
						return true
				}

				return false
			}

			setInterval(() => {
				newWindow.chrome.runtime.sendMessage = function () {
					const ExtensionId = (arguments)[0]
					const Payload = (arguments)[1]
					const Callback = (arguments)[2]

					if (MatchExtensionId(ExtensionId)) {
						const Intercepted = InterceptCommand(Payload, Callback)
						if (Intercepted) { return null }
					}
					console.warn("Not intercepting", ExtensionId, Payload, Callback)

					return oldSendMessage(ExtensionId, Payload, function () {
						if (newWindow.chrome.runtime.lastError) {
							newWindow.alert(`Google Forms Unlocker, please report this to the GitHub https://github.com/xNasuni/google-forms-unlocker/issues\nUnhandled error: ${JSON.stringify(chrome.runtime.lastError)}`)
							return
						}
						Callback.apply(this, arguments)
					})
				}
				Object.defineProperty(newWindow.document, 'hidden', {
					value: false,
					writable: false
				})
				Object.defineProperty(newWindow.document, 'visibilityState', {
					value: "visible",
					writable: false
				})
				Object.defineProperty(newWindow.document, 'webkitVisibilityState', {
					value: "visible",
					writable: false
				})
				Object.defineProperty(newWindow.document, 'mozVisibilityState', {
					value: "visible",
					writable: false
				})
				Object.defineProperty(newWindow.document, 'msVisibilityState', {
					value: "visible",
					writable: false
				})
				newWindow.document.addEventListener = function () {
					const EventType = (arguments)[0]
					const Method = (arguments)[1]
					const Options = (arguments)[2]

					if (BlacklistedEvents.indexOf(EventType) !== -1) {
						console.log(`type ${EventType} blocked from being registered with`, Method)
						return
					}

					return oldAddEventListener.apply(this, arguments)
				}
			})

			return
		} catch (e) { console.warn(e) }
		requestAnimationFrame(func)
	}
	requestAnimationFrame(func)

	var currentUrl = location.href;
	var newWindow = window.open(currentUrl, "_blank");
})();