element-ios/RiotSwiftUI/Modules/Onboarding/SplashScreen/OnboardingSplashScreenViewM...

61 lines
1.7 KiB
Swift

//
// Copyright 2021-2024 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only
// Please see LICENSE in the repository root for full details.
//
import Combine
import SwiftUI
typealias OnboardingSplashScreenViewModelType = StateStoreViewModel<OnboardingSplashScreenViewState, OnboardingSplashScreenViewAction>
protocol OnboardingSplashScreenViewModelProtocol {
var completion: ((OnboardingSplashScreenViewModelResult) -> Void)? { get set }
var context: OnboardingSplashScreenViewModelType.Context { get }
}
class OnboardingSplashScreenViewModel: OnboardingSplashScreenViewModelType, OnboardingSplashScreenViewModelProtocol {
// MARK: - Properties
// MARK: Private
// MARK: Public
var completion: ((OnboardingSplashScreenViewModelResult) -> Void)?
// MARK: - Setup
init() {
super.init(initialViewState: OnboardingSplashScreenViewState())
}
// MARK: - Public
override func process(viewAction: OnboardingSplashScreenViewAction) {
switch viewAction {
case .register:
register()
case .login:
login()
case .nextPage:
// Wrap back round to the first page index when reaching the end.
state.bindings.pageIndex = (state.bindings.pageIndex + 1) % state.content.count
case .previousPage:
// Prevent the hidden page at index -1 from being shown.
state.bindings.pageIndex = max(0, state.bindings.pageIndex - 1)
case .hiddenPage:
// Hidden page for a nicer animation when looping back to the start.
state.bindings.pageIndex = -1
}
}
private func register() {
completion?(.register)
}
private func login() {
completion?(.login)
}
}