Swift bridge

ios.swift

func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) {
		guard let type = EmbeddedAppMessageType(rawValue: message.name) else { return }
		
		switch type {
		case .setTitle:
			let title = message.body as? String
			setTitle(title: title)

		case .loadingOn:
			startActivityIndicator(start: true)

		case .loadingOff:
			startActivityIndicator(start: false)

		case .setPrimaryButton:
			guard let payload = [message.body] as? [[String: Any]] else {
				setPrimaryButton(button: nil)
				return
			}

			let primaryButton: EmbeddedAppButton? = EmbeddedAppButton.create(payload: payload).first
			setPrimaryButton(button: primaryButton)
	}