import SwiftUI

private struct ContentBlockModifier<T: Hashable>: ViewModifier {
    var focus: FocusState<T?>.Binding

    func body(content: Content) -> some View {
        content
            .background {
                Rectangle()
                    .foregroundColor(.white.opacity(0.01))
                    .onTapGesture {
                        focus.wrappedValue = nil
                    }
            }
    }
}

extension View {
    func keyboardUnfocus<T>(_ focus: FocusState<T?>.Binding) -> some View {
        self.modifier(ContentBlockModifier(focus: focus))
    }
}