ContextWindow: Change renew context event handling

Elwig/Windows/AdministrationWindow.cs

@@ -16,20 +16,20 @@ namespace Elwig.Windows {
         protected Control[] ExemptInputs { private get; set; }
         protected Control[] RequiredInputs { private get; set; }
 
-        private bool _IsEditing;
+        private bool _isEditing;
-        private bool _IsCreating;
+        private bool _isCreating;
         protected bool IsEditing {
-            get { return _IsEditing; }
+            get { return _isEditing; }
             set {
-                _IsEditing = value;
+                _isEditing = value;
-                LockContext = IsEditing;
+                LockContext = IsEditing || IsCreating;
             }
         }
         protected bool IsCreating {
-            get { return _IsCreating; }
+            get { return _isCreating; }
             set {
-                _IsCreating = value;
+                _isCreating = value;
-                LockContext = IsEditing;
+                LockContext = IsEditing || IsCreating;
             }
         }
         protected bool DoShowWarningWindows = true;
@@ -99,7 +99,7 @@ namespace Elwig.Windows {
 
         abstract protected void UpdateButtons();
 
-        protected override async Task RenewContext() {
+        protected override async Task OnRenewContext() {
             for (int i = 0; i < PlzInputs.Length; i++)
                 UpdatePlz(PlzInputs[i], PlzOrtInputs[i]);
         }

Elwig/Windows/AreaComAdminWindow.xaml.cs

@@ -95,8 +95,8 @@ namespace Elwig.Windows {
             ValidateRequiredInputs();
         }
 
-        protected override async Task RenewContext() {
+        protected override async Task OnRenewContext() {
-            await base.RenewContext();
+            await base.OnRenewContext();
             ControlUtils.RenewItemsSource(KgInput, await Context.WbKgs.Select(k => k.AtKg).OrderBy(k => k.Name).ToListAsync(), i => (i as AT_Kg)?.KgNr);
             ControlUtils.RenewItemsSource(AreaComTypeInput, await Context.AreaCommitmentTypes.OrderBy(v => v.VtrgId).ToListAsync(), i => (i as AreaComType)?.VtrgId);
             ControlUtils.RenewItemsSource(WineCultivationInput, await Context.WineCultivations.OrderBy(c => c.Name).ToListAsync(), i => (i as WineCult)?.CultId);

Elwig/Windows/BaseDataWindow.xaml.cs

@@ -52,8 +52,8 @@ namespace Elwig.Windows {
             FillInputs(App.Client);
         }
 
-        protected override async Task RenewContext() {
+        protected override async Task OnRenewContext() {
-            await base.RenewContext();
+            await base.OnRenewContext();
             ControlUtils.RenewItemsSource(SeasonList, await Context.Seasons.OrderByDescending(s => s.Year).ToListAsync(), s => (s as Season)?.Year, null, ControlUtils.RenewSourceDefault.First);
             var year = (SeasonList.SelectedItem as Season)?.Year;
             ControlUtils.RenewItemsSource(SeasonModifierList, await Context.Modifiers.Where(m => m.Year == year).OrderBy(m => m.Ordering).ToListAsync(), m => (m as Modifier)?.ModId);

Elwig/Windows/ChartWindow.xaml.cs

@@ -214,8 +214,8 @@ namespace Elwig.Windows {
             FinishInputFilling();
         }
 
-        protected override async Task RenewContext() {
+        protected override async Task OnRenewContext() {
-            await base.RenewContext();
+            await base.OnRenewContext();
             await RefreshGraphList();
         }
 

Elwig/Windows/ContextWindow.cs

@@ -7,30 +7,32 @@ using System.Windows.Threading;
 namespace Elwig.Windows {
     public abstract class ContextWindow : Window {
 
+        public static readonly int RenewSec = 10;
+
         protected AppDbContext Context { get; private set; }
         protected bool LockContext { get; set; } = false;
 
-        private readonly DispatcherTimer ContextRenewTimer;
+        private readonly DispatcherTimer _timer;
-        private static readonly int ContextRenewSec = 10;
+        private bool _renewPending = false;
 
         public ContextWindow() : base() {
-            ContextRenewTimer = new DispatcherTimer();
+            _timer = new DispatcherTimer();
-            ContextRenewTimer.Tick += new EventHandler(OnRenewContext);
+            _timer.Tick += new EventHandler(OnShouldRenewContext);
-            ContextRenewTimer.Interval = new TimeSpan(0, 0, ContextRenewSec);
+            _timer.Interval = new TimeSpan(0, 0, RenewSec);
-            ContextRenewTimer.Start();
+            _timer.Start();
             Context = new();
             Loaded += OnLoaded;
         }
 
-        private void OnRenewContext(object? sender, EventArgs evt) {
+        private async void OnShouldRenewContext(object? sender, EventArgs evt) {
-            if (LockContext || !Context.HasBackendChanged) return;
+            if (!Context.HasBackendChanged) return;
-            Context.Dispose();
+            _renewPending = true;
-            Context = new();
+            if (LockContext) return;
-            RenewContext().GetAwaiter().GetResult();
+            await RenewContext();
         }
 
         private void OnLoaded(object sender, RoutedEventArgs evt) {
-            RenewContext().GetAwaiter().GetResult();
+            OnRenewContext().GetAwaiter().GetResult();
         }
 
         protected override void OnClosed(EventArgs evt) {
@@ -38,6 +40,14 @@ namespace Elwig.Windows {
             Context.Dispose();
         }
 
-        abstract protected Task RenewContext();
+        protected async Task RenewContext() {
+            if (!_renewPending) return;
+            Context.Dispose();
+            Context = new();
+            await OnRenewContext();
+            _renewPending = false;
+        }
+
+        abstract protected Task OnRenewContext();
     }
 }

Elwig/Windows/DeliveryAdminWindow.xaml.cs

@@ -415,8 +415,8 @@ namespace Elwig.Windows {
             }
         }
 
-        protected override async Task RenewContext() {
+        protected override async Task OnRenewContext() {
-            await base.RenewContext();
+            await base.OnRenewContext();
 
             if (Member != null) {
                 if (Context.Members.Find(Member.MgNr) is not Member m) {
@@ -798,6 +798,7 @@ namespace Elwig.Windows {
             }
             FinishButton.Cursor = null;
             DeliveryList.SelectedItem = null;
+            await RenewContext();
             RefreshInputs();
             InitInputs();
         }
@@ -820,6 +821,7 @@ namespace Elwig.Windows {
                 DisableWeighingButtons();
                 HideFinishNewPartDeliveryCancelButtons();
                 ShowNewEditDeleteButtons();
+                await RenewContext();
                 RefreshInputs();
                 ClearInputStates();
                 LockInputs();

Elwig/Windows/MemberAdminWindow.xaml.cs

@@ -131,8 +131,8 @@ namespace Elwig.Windows {
             ValidateRequiredInputs();
         }
 
-        protected override async Task RenewContext() {
+        protected override async Task OnRenewContext() {
-            await base.RenewContext();
+            await base.OnRenewContext();
             ControlUtils.RenewItemsSource(BranchInput, await Context.Branches.OrderBy(b => b.Name).ToListAsync(), i => (i as Branch)?.ZwstId);
             ControlUtils.RenewItemsSource(DefaultKgInput, await Context.WbKgs.Select(k => k.AtKg).OrderBy(k => k.Name).ToListAsync(), i => (i as AT_Kg)?.KgNr);
             await RefreshMemberList();