passepartout-apple/Library/Sources/UILibrary/Views/UI/TunnelToggleButton.swift

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//
// TunnelToggleButton.swift
// Passepartout
//
// Created by Davide De Rosa on 9/7/24.
// Copyright (c) 2024 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 CommonLibrary
import CommonUtils
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import PassepartoutKit
import SwiftUI
public struct TunnelToggleButton<Label>: View, Routable, ThemeProviding where Label: View {
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@EnvironmentObject
public var theme: Theme
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@ObservedObject
private var tunnel: ExtendedTunnel
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private let profile: Profile?
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@Binding
private var nextProfileId: Profile.ID?
private let errorHandler: ErrorHandler
public let flow: ConnectionFlow?
private let label: (Bool) -> Label
public init(
tunnel: ExtendedTunnel,
profile: Profile?,
nextProfileId: Binding<Profile.ID?>,
errorHandler: ErrorHandler,
flow: ConnectionFlow?,
label: @escaping (Bool) -> Label
) {
self.tunnel = tunnel
self.profile = profile
_nextProfileId = nextProfileId
self.errorHandler = errorHandler
self.flow = flow
self.label = label
}
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public var body: some View {
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Button(action: tryPerform) {
label(canConnect)
}
#if os(macOS)
.buttonStyle(.plain)
.cursor(.hand)
#endif
.disabled(profile == nil || (isInstalled && tunnel.status == .deactivating))
}
}
private extension TunnelToggleButton {
var isInstalled: Bool {
profile?.id == tunnel.currentProfile?.id
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}
var canConnect: Bool {
!isInstalled || (tunnel.status == .inactive && tunnel.currentProfile?.onDemand != true)
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}
}
private extension TunnelToggleButton {
func tryPerform() {
guard let profile else {
return
}
Task {
if !isInstalled {
nextProfileId = profile.id
}
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defer {
if nextProfileId == profile.id {
nextProfileId = nil
}
}
await perform(with: profile)
}
}
func perform(with profile: Profile) async {
do {
if isInstalled {
if canConnect {
await flow?.onConnect(profile)
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} else {
try await tunnel.disconnect()
}
} else {
await flow?.onConnect(profile)
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}
} catch is CancellationError {
//
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} catch {
errorHandler.handle(
error,
title: profile.name,
message: Strings.Errors.App.tunnel
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)
}
}
}