edit relays

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

damus/Components/TextFieldAlert.swift

@@ -0,0 +1,61 @@
+//
+//  TextFieldAlert.swift
+//  damus
+//
+//  Created by William Casarin on 2022-06-09.
+//
+
+import SwiftUI
+
+struct TextFieldAlert<Presenting>: View where Presenting: View {
+    @Binding var isShowing: Bool
+    @Binding var text: String
+    let presenting: Presenting
+    let title: String
+
+    var body: some View {
+        GeometryReader { (deviceSize: GeometryProxy) in
+            ZStack {
+                self.presenting
+                    .disabled(isShowing)
+                VStack {
+                    Text(self.title)
+                    TextField("Relay", text: self.$text)
+                    Divider()
+                    HStack {
+                        Button(action: {
+                            withAnimation {
+                                self.isShowing.toggle()
+                            }
+                        }) {
+                            Text("Dismiss")
+                        }
+                    }
+                }
+                .padding()
+                .background(Color.white)
+                .frame(
+                    width: deviceSize.size.width*0.7,
+                    height: deviceSize.size.height*0.7
+                )
+                .shadow(radius: 1)
+                .opacity(self.isShowing ? 1 : 0)
+            }
+        }
+    }
+
+}
+
+
+extension View {
+
+    func textFieldAlert(isShowing: Binding<Bool>,
+                        text: Binding<String>,
+                        title: String) -> some View {
+        TextFieldAlert(isShowing: isShowing,
+                       text: text,
+                       presenting: self,
+                       title: title)
+    }
+
+}