Add TunnelControlViewController

1 files changed, 96 insertions, 0 deletions

diff --git a/ios/MullvadVPN/TunnelControlViewController.swift b/ios/MullvadVPN/TunnelControlViewController.swift
new file mode 100644
index 0000000000..2f9bc0eae4
--- /dev/null
+++ b/ios/MullvadVPN/TunnelControlViewController.swift
@@ -0,0 +1,96 @@
+//
+//  TunnelControlView.swift
+//  MullvadVPN
+//
+//  Created by pronebird on 01/11/2019.
+//  Copyright © 2019 Amagicom AB. All rights reserved.
+//
+
+import Combine
+import UIKit
+
+enum TunnelControlAction {
+    /// An action emitted only when the tunnel is down
+    case connect
+
+    /// An action emitted when user either selects to cancel the connection or disconnect when
+    /// the tunnel is already connected
+    case disconnect
+
+    /// An action emitted when user requests to either select the location when the tunnel is down
+    /// or change the location when the tunnel is connecting or connected.
+    case selectLocation
+}
+
+protocol TunnelControlViewControllerDelegate: class {
+    func tunnelControlViewController(_ controller: TunnelControlViewController, handleAction action: TunnelControlAction) -> Void
+}
+
+class TunnelControlViewController: UIViewController {
+
+    @IBOutlet var disconnectedView: UIView!
+    @IBOutlet var connectingView: UIView!
+    @IBOutlet var connectedView: UIView!
+
+    weak var delegate: TunnelControlViewControllerDelegate?
+
+    private var tunnelStateSubscriber: AnyCancellable?
+    private var controlsView: UIView?
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+        tunnelStateSubscriber = TunnelManager.shared.$tunnelState
+            .receive(on: DispatchQueue.main)
+            .sink { [weak self] (tunnelState) in
+                self?.didReceiveTunnelState(tunnelState)
+        }
+    }
+
+    private func didReceiveTunnelState(_ tunnelState: TunnelState) {
+        switch tunnelState {
+        case .disconnected:
+            addControlsView(disconnectedView)
+
+        case .connecting:
+            addControlsView(connectingView)
+
+        case .connected, .reconnecting, .disconnecting:
+            addControlsView(connectedView)
+        }
+    }
+
+
+    private func addControlsView(_ nextControlsView: UIView) {
+        guard controlsView != nextControlsView else { return }
+
+        controlsView?.removeFromSuperview()
+        controlsView = nextControlsView
+
+        nextControlsView.translatesAutoresizingMaskIntoConstraints = false
+
+        view.addSubview(nextControlsView)
+
+        NSLayoutConstraint.activate([
+            nextControlsView.topAnchor.constraint(equalTo: view.topAnchor),
+            nextControlsView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
+            nextControlsView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
+            nextControlsView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
+        ])
+    }
+
+    // MARK: - Actions
+
+    @IBAction func handleSecureConnection(_ sender: Any) {
+        delegate?.tunnelControlViewController(self, handleAction: .connect)
+    }
+
+    @IBAction func handleDisconnect(_ sender: Any) {
+        delegate?.tunnelControlViewController(self, handleAction: .disconnect)
+    }
+
+    @IBAction func handleSelectLocation(_ sender: Any) {
+        delegate?.tunnelControlViewController(self, handleAction: .selectLocation)
+    }
+
+}