SwiftUI: Passing a variable from Content View to a Class - swift

Question

In my menu bar macOS app, i'm trying to access a toggle that's in my Content View from my StatusBarController class. This switch is meant to keep the popover shown on screen even when a user clicks outside the app.
Content View
struct ContentView: View {
#State private var lock = false
var body: some View {
VStack{
Text("Hello World")
Toggle( isOn: $lock, label: {
})
.toggleStyle(SwitchToggleStyle())
}
.frame(width: 360.0, height: 160.0, alignment: .top)
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
StatusBarController
class StatusBarController {
private var eventMonitor: EventMonitor?
private var content: ContentView?
func unlockpopover() {
eventMonitor = EventMonitor(mask: [.leftMouseDown, .rightMouseDown], handler: mouseEventHandler)
}
if lock {
// Popover window is locked if user clicks outside the app
}else {
unlockpopover() // Popover window is unlocked if user clicks outside the app
}
}
}
}
How do i access the 'lock' variable from Content View?
'Cannot find 'lock' in scope'
is the error that's currently showing.
MenuBar project template i'm using.
EDIT
#lorem ipsum's suggestion of using EnvironmentObject and observable object.
StatusBarController
class StatusBarController:ObservableObject {
private var eventMonitor: EventMonitor?
private var content: ContentView?
#Published var lock: Bool = false
func unlockpopover() {
eventMonitor = EventMonitor(mask: [.leftMouseDown, .rightMouseDown], handler: mouseEventHandler)
}
if lock {
// Popover window is locked if user clicks outside the app
}else {
unlockpopover() // Popover window is unlocked if user clicks outside the app
}
}
}
}
Content View
struct ContentView: View {
#EnvironmentObject var test: StatusBarController
var body: some View {
VStack{
Text("Hello World")
Toggle( isOn: $test.lock, label: {
})
.toggleStyle(SwitchToggleStyle())
}
.environmentObject(self.test)
.frame(width: 360.0, height: 160.0, alignment: .top)
}
}
App crashes with this error highlighted on $test.lock
Thread 1: Fatal error: No ObservableObject of type StatusBarController
found. A View.environmentObject(_:) for StatusBarController may be
missing as an ancestor of this view.
AppDelegate
#NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
var popover = NSPopover.init()
var statusBar: StatusBarController?
func applicationDidFinishLaunching(_ aNotification: Notification) {
// Create the SwiftUI view that provides the contents
let contentView = ContentView()
// Set the SwiftUI's ContentView to the Popover's ContentViewController
popover.contentViewController = MainViewController()
popover.contentSize = NSSize(width: 360, height: 360)
popover.contentViewController?.view = NSHostingView(rootView: contentView)
// Create the Status Bar Item with the Popover
statusBar = StatusBarController.init(popover)
}
func applicationWillTerminate(_ aNotification: Notification) {
// Insert code here to tear down your application
}
}