Tunnels list: Update when a tunnel is added

Signed-off-by: Roopesh Chander <roop@roopc.net>

WireGuard/WireGuard/UI/iOS/TunnelsListTableViewController.swift

@@ -30,8 +30,11 @@ class TunnelsListTableViewController: UITableViewController {
 
         TunnelsManager.create { [weak self] tunnelsManager in
             guard let tunnelsManager = tunnelsManager else { return }
-            self?.tunnelsManager = tunnelsManager
-            self?.tableView.reloadData()
+            if let s = self {
+                tunnelsManager.delegate = s
+                s.tunnelsManager = tunnelsManager
+                s.tableView.reloadData()
+            }
         }
     }
 
@@ -78,6 +81,14 @@ extension TunnelsListTableViewController {
     }
 }
 
+// MARK: TunnelsManagerDelegate
+
+extension TunnelsListTableViewController: TunnelsManagerDelegate {
+    func tunnelsAdded(atIndex index: Int, numberOfTunnels: Int) {
+        self.tableView.insertRows(at: [IndexPath(row: index, section: 0)], with: .automatic)
+    }
+}
+
 class TunnelsListTableViewCell: UITableViewCell {
     static let id: String = "TunnelsListTableViewCell"
     var tunnelName: String {

WireGuard/WireGuard/VPN/TunnelsManager.swift

@@ -28,9 +28,14 @@ class TunnelContainer {
     }
 }
 
+protocol TunnelsManagerDelegate: class {
+    func tunnelsAdded(atIndex: Int, numberOfTunnels: Int)
+}
+
 class TunnelsManager {
 
     var tunnels: [TunnelContainer]
+    weak var delegate: TunnelsManagerDelegate? = nil
 
     enum TunnelsManagerError: Error {
         case tunnelsUninitialized
@@ -56,6 +61,7 @@ class TunnelsManager {
         }
         let tunnel = TunnelContainer(tunnel: tunnelProvider, index: 0)
         tunnels.insert(tunnel, at: 0)
+        delegate?.tunnelsAdded(atIndex: 0, numberOfTunnels: 1)
         completionHandler(nil)
     }