edit relays

Signed-off-by: William Casarin <jb55@jb55.com>

damus/Views/AddRelayView.swift

@@ -0,0 +1,55 @@
+//
+//  AddRelayView.swift
+//  damus
+//
+//  Created by William Casarin on 2022-06-09.
+//
+
+import SwiftUI
+
+struct AddRelayView: View {
+    @Binding var show_add_relay: Bool
+    @Binding var relay: String
+    
+    let action: (String?) -> Void
+    
+    var body: some View {
+        VStack(alignment: .leading) {
+            Form {
+                Section("Add Relay") {
+                    TextField("wss://some.relay.com", text: $relay)
+                        .textInputAutocapitalization(.never)
+                }
+            }
+            
+            VStack {
+                HStack {
+                    Button("Cancel") {
+                        show_add_relay = false
+                        action(nil)
+                    }
+                    .contentShape(Rectangle())
+                    
+                    Spacer()
+                    
+                    Button("Add") {
+                        show_add_relay = false
+                        action(relay)
+                    }
+                    .buttonStyle(.borderedProminent)
+                    .contentShape(Rectangle())
+                }
+                .padding()
+            }
+        }
+    }
+}
+
+struct AddRelayView_Previews: PreviewProvider {
+    @State static var show: Bool = true
+    @State static var relay: String = ""
+    
+    static var previews: some View {
+        AddRelayView(show_add_relay: $show, relay: $relay, action: {_ in })
+    }
+}