AreaComAdminWindow: Allow users to create new reeds inline

Elwig/App.xaml.cs

@@ -13,10 +13,15 @@ using System.Threading;
 using System.Windows.Markup;
 using System.Reflection;
 using Elwig.Helpers.Printing;
+using Elwig.Windows;
+using Elwig.Dialogs;
 
 namespace Elwig {
     public partial class App : Application {
 
+        protected static App CurrentApp;
+        public static int NumWindows => CurrentApp.Windows.Count;
+
         public static readonly string DataPath = @"C:\ProgramData\Elwig\";
         public static readonly string ExePath = @"C:\Program Files\Elwig\";
         public static readonly string TempPath = Path.Combine(Path.GetTempPath(), "Elwig");
@@ -56,6 +61,7 @@ namespace Elwig {
             Directory.CreateDirectory(DataPath);
             MainDispatcher = Dispatcher;
             Scales = Array.Empty<IScale>();
+            CurrentApp = this;
         }
 
         protected override void OnStartup(StartupEventArgs evt) {
@@ -168,5 +174,49 @@ namespace Elwig {
                 }
             }
         }
+
+        private static T FocusWindow<T>(Func<T> constructor, Predicate<T>? selector = null) where T : Window {
+            foreach (Window w in CurrentApp.Windows) {
+                if (w is T t && (selector == null || selector(t))) {
+                    if (t.WindowState == WindowState.Minimized)
+                        t.WindowState = WindowState.Normal;
+                    t.Activate();
+                    return t;
+                }
+            }
+            var n = constructor();
+            n.Show();
+            return n;
+        }
+
+        public static DeliveryAdminWindow FocusReceipt() {
+            return FocusWindow<DeliveryAdminWindow>(() => new(true), w => w.IsReceipt);
+        }
+
+        public static DeliveryAdminWindow FocusMemberDeliveries(int mgnr) {
+            return FocusWindow<DeliveryAdminWindow>(() => new(mgnr), w => w.MgNr == mgnr);
+        }
+
+        public static AreaComAdminWindow FocusMemberAreaComs(int mgnr) {
+            return FocusWindow<AreaComAdminWindow>(() => new(mgnr), w => w.MgNr == mgnr);
+        }
+
+        public static BaseDataWindow FocusBaseData() {
+            return FocusWindow<BaseDataWindow>(() => new());
+        }
+
+        public static BaseDataWindow FocusBaseDataAreaComType() {
+            var w = FocusBaseData();
+            w.AreaCommitmentTypes.Focus();
+            return w;
+        }
+
+        public static SeasonFinishWindow FocusSeasonFinish() {
+            return FocusWindow<SeasonFinishWindow>(() => new());
+        }
+
+        public static DeliveryConfirmationsWindow FocusDeliveryConfirmations(int year) {
+            return FocusWindow<DeliveryConfirmationsWindow>(() => new(year), w => w.Year == year);
+        }
     }
 }