Settings for iOS/macOS

Shared/Views/SignInRequiredView.swift

@@ -0,0 +1,73 @@
+import Defaults
+import SwiftUI
+
+struct SignInRequiredView<Content: View>: View {
+    let title: String
+    let content: Content
+
+    @EnvironmentObject<InvidiousAPI> private var api
+    @Default(.instances) private var instances
+    @EnvironmentObject<NavigationModel> private var navigation
+
+    init(title: String, @ViewBuilder content: @escaping () -> Content) {
+        self.title = title
+        self.content = content()
+    }
+
+    var body: some View {
+        Group {
+            if api.signedIn {
+                content
+            } else {
+                prompt
+            }
+        }
+        #if !os(tvOS)
+            .navigationTitle(title)
+        #endif
+    }
+
+    var prompt: some View {
+        VStack(spacing: 30) {
+            Text("Sign In Required")
+                .font(.title2.bold())
+
+            Group {
+                if instances.isEmpty {
+                    Text("You need to create an instance and accounts\nto access **\(title)** section")
+                } else {
+                    Text("You need to select an account\nto access **\(title)** section")
+                }
+            }
+            .multilineTextAlignment(.center)
+            .foregroundColor(.secondary)
+            .font(.title3)
+            .padding(.vertical)
+
+            if instances.isEmpty {
+                openSettingsButton
+            }
+        }
+    }
+
+    var openSettingsButton: some View {
+        Button(action: {
+            #if os(macOS)
+                NSApp.sendAction(Selector(("showPreferencesWindow:")), to: nil, from: nil)
+            #else
+                navigation.presentingSettings = true
+            #endif
+        }) {
+            Text("Open Settings")
+        }
+        .buttonStyle(.borderedProminent)
+    }
+}
+
+struct SignInRequiredView_Previews: PreviewProvider {
+    static var previews: some View {
+        SignInRequiredView(title: "Subscriptions") {
+            Text("Only when signed in")
+        }
+    }
+}