SwiftUI on Mac - How do I designate a button as being the primary?

Question

In AppKit I would do this by assigning its key equivalent to be ↩ or making its cell the window\'s default. However, neither of these seems possible in SwiftUI, so h

Answer 1

Here is a shorter, but less generic solution to create a primary button with return key equivalent, and default button blue tinting.

struct PrimaryButtonView: NSViewRepresentable {
    typealias NSViewType = PrimaryButton

    let title: String
    let action: () -> Void

    init(_ title: String, action: @escaping () -> Void) {
        self.title = title
        self.action = action
    }

    func makeNSView(context: Context) -> PrimaryButton {
        PrimaryButton(title, action: action)
    }

    func updateNSView(_ nsView: PrimaryButton, context: Context) {
        return
    }
}


class PrimaryButton: NSButton {
    let buttonAction: () -> Void

    init(_ title: String, action: @escaping () -> Void) {
        self.buttonAction = action
        super.init(frame: .zero)
        self.title = title
        self.action = #selector(clickButton(_:))
        bezelStyle = .rounded  //Only this style results in blue tint for button
        isBordered = true
        focusRingType = .none
        keyEquivalent = "\r"
    }

    required init?(coder: NSCoder) {
        fatalError()
    }

    @objc func clickButton(_ sender: PrimaryButton) {
        buttonAction()
    }
}