passepartout-apple/Passepartout/App/Views/VPNToggle.swift

85 lines
2.4 KiB
Swift

//
// VPNToggle.swift
// Passepartout
//
// Created by Davide De Rosa on 4/26/22.
// Copyright (c) 2022 Davide De Rosa. All rights reserved.
//
// https://github.com/passepartoutvpn
//
// This file is part of Passepartout.
//
// Passepartout is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Passepartout is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Passepartout. If not, see <http://www.gnu.org/licenses/>.
//
import SwiftUI
import PassepartoutCore
struct VPNToggle: View {
@ObservedObject private var vpnManager: VPNManager
@ObservedObject private var currentVPNState: VPNManager.ObservableState
private let rateLimit: Int
private let onToggle: (() -> Void)?
private var isEnabled: Binding<Bool> {
.init {
isLocallyEnabled
} set: {
guard toggleVPN() else {
return
}
isLocallyEnabled = $0
}
}
// local copy grants immediate visual feedback and smooth animation
@State private var isLocallyEnabled = false
@State private var canToggle = true
init(rateLimit: Int, onToggle: (() -> Void)? = nil) {
vpnManager = .shared
currentVPNState = .shared
self.rateLimit = rateLimit
self.onToggle = onToggle
}
var body: some View {
Toggle(L10n.Global.Strings.enabled, isOn: isEnabled)
.onAppear {
isLocallyEnabled = currentVPNState.isEnabled
}.onChange(of: currentVPNState.isEnabled) {
isLocallyEnabled = $0
}.disabled(!canToggle)
}
private func toggleVPN() -> Bool {
guard vpnManager.toggle() else {
return false
}
// rate limit toggle actions
canToggle = false
DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(rateLimit)) {
canToggle = true
}
onToggle?()
return true
}
}