Create rough app outline

Multiplatform/Shared/AppModel.swift

@@ -0,0 +1,15 @@
+//
+//  AppModel.swift
+//  NetNewsWire
+//
+//  Created by Maurice Parker on 6/28/20.
+//  Copyright © 2020 Ranchero Software. All rights reserved.
+//
+
+import Foundation
+
+final class SceneModel {
+	
+	var sidebarModel = SidebarModel()
+	
+}

Multiplatform/Shared/ContentView.swift

@@ -1,21 +0,0 @@
-//
-//  ContentView.swift
-//  Shared
-//
-//  Created by Maurice Parker on 6/27/20.
-//  Copyright © 2020 Ranchero Software. All rights reserved.
-//
-
-import SwiftUI
-
-struct ContentView: View {
-    var body: some View {
-        Text("Hello, world!").padding()
-    }
-}
-
-struct ContentView_Previews: PreviewProvider {
-    static var previews: some View {
-        ContentView()
-    }
-}

Multiplatform/Shared/NavigationView.swift

@@ -0,0 +1,40 @@
+//
+//  NavigationView.swift
+//  NetNewsWire
+//
+//  Created by Maurice Parker on 6/28/20.
+//  Copyright © 2020 Ranchero Software. All rights reserved.
+//
+
+import SwiftUI
+
+struct SceneNavigationView: View {
+    var body: some View {
+		SceneNavigationView {
+			Text("Hello")
+//			#if os(macOS)
+//			SidebarView().frame(minWidth: 100, idealWidth: 150, maxWidth: 200, maxHeight: .infinity)
+//			#else
+//			SidebarView()
+//			#endif
+//
+//			Text("Timeline")
+//				.frame(maxWidth: .infinity, maxHeight: .infinity)
+//
+//			#if os(macOS)
+//			Text("None Selected")
+//				.frame(maxWidth: .infinity, maxHeight: .infinity)
+//				.toolbar { Spacer() }
+//			#else
+//			Text("None Selected")
+//				.frame(maxWidth: .infinity, maxHeight: .infinity)
+//			#endif
+		}
+	}
+}
+
+struct NavigationView_Previews: PreviewProvider {
+    static var previews: some View {
+        SceneNavigationView()
+    }
+}

Multiplatform/Shared/NetNewsWire.swift

@@ -18,9 +18,21 @@ struct NetNewsWire: App {
 	@UIApplicationDelegateAdaptor(AppDelegate.self) private var delegate
 	#endif
 	
+	@StateObject private var sceneModel = SceneModel()
+	
     var body: some Scene {
         WindowGroup {
-            ContentView()
+			#if os(macOS)
+			SceneNavigationView()
+				.frame(minWidth: 600, idealWidth: 1000, maxWidth: .infinity, minHeight: 600, idealHeight: 700, maxHeight: .infinity)
+				.environmentObject(sceneModel)
+			#endif
+			
+			#if os(iOS)
+			SceneNavigationView()
+				.environmentObject(sceneModel)
+			#endif
         }
     }
+	
 }

Multiplatform/Shared/SceneModel.swift

@@ -0,0 +1,15 @@
+//
+//  SceneModel.swift
+//  NetNewsWire
+//
+//  Created by Maurice Parker on 6/28/20.
+//  Copyright © 2020 Ranchero Software. All rights reserved.
+//
+
+import Foundation
+
+final class SceneModel: ObservableObject {
+	
+	var sidebarModel: SidebarModel?
+	
+}

Multiplatform/Shared/SceneNavigationView.swift

@@ -0,0 +1,39 @@
+//
+//  SceneNavigationView.swift
+//  NetNewsWire
+//
+//  Created by Maurice Parker on 6/28/20.
+//  Copyright © 2020 Ranchero Software. All rights reserved.
+//
+
+import SwiftUI
+
+struct SceneNavigationView: View {
+    var body: some View {
+		NavigationView {
+			#if os(macOS)
+			SidebarView().frame(minWidth: 100, idealWidth: 150, maxWidth: 200, maxHeight: .infinity)
+			#else
+			SidebarView()
+			#endif
+
+			Text("Timeline")
+				.frame(maxWidth: .infinity, maxHeight: .infinity)
+
+			#if os(macOS)
+			Text("None Selected")
+				.frame(maxWidth: .infinity, maxHeight: .infinity)
+				.toolbar { Spacer() }
+			#else
+			Text("None Selected")
+				.frame(maxWidth: .infinity, maxHeight: .infinity)
+			#endif
+		}
+	}
+}
+
+struct NavigationView_Previews: PreviewProvider {
+    static var previews: some View {
+        SceneNavigationView()
+    }
+}

Multiplatform/Shared/Sidebar/SidebarModel.swift

@@ -0,0 +1,13 @@
+//
+//  SidebarModel.swift
+//  NetNewsWire
+//
+//  Created by Maurice Parker on 6/28/20.
+//  Copyright © 2020 Ranchero Software. All rights reserved.
+//
+
+import Foundation
+
+class SidebarModel: ObservableObject {
+	
+}

Multiplatform/Shared/Sidebar/SidebarView.swift

@@ -0,0 +1,21 @@
+//
+//  SidebarView.swift
+//  NetNewsWire
+//
+//  Created by Maurice Parker on 6/28/20.
+//  Copyright © 2020 Ranchero Software. All rights reserved.
+//
+
+import SwiftUI
+
+struct SidebarView: View {
+    var body: some View {
+        Text("Sidebar View")
+    }
+}
+
+struct SidebarView_Previews: PreviewProvider {
+    static var previews: some View {
+        SidebarView()
+    }
+}