Unified detail views, model

CHDataManagement/Views/Generic/FolderOnDiskPropertyView.swift

@@ -0,0 +1,57 @@
+import SwiftUI
+
+struct FolderOnDiskPropertyView: View {
+
+    let title: LocalizedStringKey
+
+    @Binding
+    var folder: String
+
+    let footer: LocalizedStringKey
+
+    let update: (URL) -> Void
+
+    init(title: LocalizedStringKey, folder: Binding<String>, footer: LocalizedStringKey, update: @escaping (URL) -> Void) {
+        self.title = title
+        self._folder = folder
+        self.footer = footer
+        self.update = update
+    }
+
+    var body: some View {
+        GenericPropertyView(title: title, footer: footer) {
+            HStack(alignment: .firstTextBaseline) {
+                Text(folder)
+                Spacer()
+                Button("Select") {
+                    guard let url = openFolderSelectionPanel() else {
+                        return
+                    }
+                    DispatchQueue.main.async {
+                        update(url)
+                    }
+                }
+            }
+        }
+    }
+
+    private func openFolderSelectionPanel() -> URL? {
+        let panel = NSOpenPanel()
+        // Sets up so user can only select a single directory
+        panel.canChooseFiles = false
+        panel.canChooseDirectories = true
+        panel.allowsMultipleSelection = false
+        panel.showsHiddenFiles = false
+        panel.title = "Select directory"
+        //panel.prompt = "Select Directory"
+
+        let response = panel.runModal()
+        guard response == .OK else {
+            return nil
+        }
+        guard let url = panel.url else {
+            return nil
+        }
+        return url
+    }
+}