feat(ui): constrain decimal input and add stacked timed toasts with uniform actions

2026-11-02 19:19:07 +01:00
parent 22e509d982
commit 86a73b862a
24 changed files with 315 additions and 103 deletions
@@ -0,0 +1,24 @@
+<input id="@Id" type="text" inputmode="decimal" class="form-control" data-amount-guard
+       data-allow-negative="@AllowNegative.ToString().ToLowerInvariant()"
+       @bind:get="Value" @bind:set="SetValue" @bind:event="oninput" disabled="@Disabled"
+       aria-describedby="@(Id + "-rejected")" />
+<span id="@(Id + "-rejected")" class="input-rejection text-danger" role="status">@rejection</span>
+
+@code {
+    [Parameter] public string Id { get; set; } = "amount";
+    [Parameter] public string Value { get; set; } = string.Empty;
+    [Parameter] public EventCallback<string> ValueChanged { get; set; }
+    [Parameter] public bool Disabled { get; set; }
+    [Parameter] public bool AllowNegative { get; set; }
+    private string? rejection;
+    private async Task SetValue(string value)
+    {
+        if (!BookingInput.IsAmountDraft(value, AllowNegative))
+        {
+            rejection = "Diese Eingabe wurde nicht übernommen. Bitte einen Betrag wie 12,50 eingeben.";
+            return;
+        }
+        rejection = null;
+        await ValueChanged.InvokeAsync(value);
+    }
+}
@@ -1,3 +1,4 @@
+@inject ToastService Toasts
@inject IEntryService EntryService

 <div class="dialog-backdrop">
@@ -36,8 +37,8 @@

                    <label class="form-label" for="entry-amount">Betrag (€)</label>
                    <div>
-                        <input id="entry-amount" type="text" inputmode="decimal" class="form-control" @bind="amountText" @bind:event="oninput" placeholder="12,50" aria-describedby="entry-amount-help" aria-invalid="@(!ValidAmount ? "true" : "false")" />
-                        <p id="entry-amount-help" class="@(!ValidAmount ? "text-danger" : "text-muted")">Betrag ohne Minuszeichen, größer als 0. Komma oder Punkt, höchstens zwei Nachkommastellen. Keine Tausendertrenner oder Währungszeichen, auch beim Einfügen. Es wird nicht gerundet.</p>
+                        <AmountInput Id="entry-amount" @bind-Value="amountText" />
+                        <p class="text-muted">Betrag ohne Minuszeichen.</p>
                    </div>
                </div>

@@ -50,13 +51,6 @@
                }

            </fieldset>
-            @if (isSaving) { <p role="status" aria-live="polite">Wird gespeichert …</p> }
-            @if (saveError != null)
-            {
-                <div class="alert alert-danger" role="alert">@saveError
-                    <details><summary>Technische Details</summary>@saveDetails</details>
-                </div>
-            }
            <div class="d-flex justify-content-end gap-2">
                <button type="submit" class="btn btn-success" disabled="@(isSaving || completed || (committedResult == null && !CanSave))">
                    @(isSaving ? "Wird gespeichert …" : committedResult != null ? "Ansicht aktualisieren" : "Speichern")
@@ -73,6 +73,7 @@ public partial class AddEntryDialog
    private async Task Save()
    {
        if (isSaving || completed || (committedResult == null && !CanSave)) return;
+        var busyToast = Toasts.Show("Wird gespeichert …", persistent: true);
        isSaving = true;
        saveError = null;
        saveDetails = null;
@@ -98,8 +99,9 @@ public partial class AddEntryDialog
                ? "Speichern fehlgeschlagen. Die Eingaben bleiben erhalten. Bitte erneut versuchen."
                : "Die Buchung ist gespeichert. Die Ansicht konnte nicht aktualisiert werden. Bitte Ansicht aktualisieren; es wird keine weitere Buchung erzeugt.";
            saveDetails = ex.Message;
+            Toasts.Show(saveError, Duempelkas.App.Services.ToastKind.Error, saveDetails);
        }
-        finally { isSaving = false; }
+        finally { isSaving = false; Toasts.Dismiss(busyToast); }
    }

    private async Task Cancel()
@@ -1,3 +1,4 @@
+@inject ToastService Toasts
@inject IEntryService EntryService
@inject IAccountService AccountService

@@ -26,8 +27,8 @@
                    <input id="transfer-title" type="text" class="form-control" @bind="title" @bind:event="oninput" placeholder="Beschreibung der Umbuchung" />

                    <label class="form-label">Betrag (€)</label>
-                    <div><input id="transfer-amount" type="text" inputmode="decimal" class="form-control" @bind="amountText" @bind:event="oninput" aria-describedby="transfer-amount-help" />
-                        <p id="transfer-amount-help" class="@(!ValidAmount ? "text-danger" : "text-muted")">Betrag ohne Minuszeichen, größer als 0; Komma oder Punkt, höchstens zwei Nachkommastellen. Keine Tausendertrenner oder Währungszeichen; keine Rundung.</p></div>
+                    <div><AmountInput Id="transfer-amount" @bind-Value="amountText" />
+                        <p class="text-muted">Betrag ohne Minuszeichen.</p></div>
                </div>

                @if (OutsideYear)
@@ -39,13 +40,6 @@
                }

            </fieldset>
-            @if (isSaving) { <p role="status" aria-live="polite">Wird gespeichert …</p> }
-            @if (saveError != null)
-            {
-                <div class="alert alert-danger" role="alert">@saveError
-                    <details><summary>Technische Details</summary>@saveDetails</details>
-                </div>
-            }
            <div class="d-flex justify-content-end gap-2">
                <button type="submit" class="btn btn-success" disabled="@(isSaving || completed || (committedResult == null && !CanSave))">
                    @(isSaving ? "Wird gespeichert …" : committedResult != null ? "Ansicht aktualisieren" : "Speichern")
@@ -81,6 +81,7 @@ public partial class AddTransferDialog
    private async Task Save()
    {
        if (isSaving || completed || (committedResult == null && !CanSave)) return;
+        var busyToast = Toasts.Show("Wird gespeichert …", persistent: true);
        isSaving = true;
        saveError = null;
        saveDetails = null;
@@ -106,8 +107,9 @@ public partial class AddTransferDialog
                ? "Speichern fehlgeschlagen. Die Eingaben bleiben erhalten. Bitte erneut versuchen."
                : "Die Buchung ist gespeichert. Die Ansicht konnte nicht aktualisiert werden. Bitte Ansicht aktualisieren; es wird keine weitere Buchung erzeugt.";
            saveDetails = ex.Message;
+            Toasts.Show(saveError, Duempelkas.App.Services.ToastKind.Error, saveDetails);
        }
-        finally { isSaving = false; }
+        finally { isSaving = false; Toasts.Dismiss(busyToast); }
    }

    private async Task Cancel()
@@ -1,5 +1,7 @@
@inherits LayoutComponentBase

+<ToastHost />
+
 <div class="d-flex flex-column vh-100">
    <nav class="app-navbar d-flex justify-content-between align-items-center">
        <a class="navbar-brand" href="">
@@ -1,40 +1,19 @@
+@inject ToastService Toasts
@inject IFileSaveService FileSaveService
-
-@if (Result != null)
-{
-    <div class="alert @(Result.Status == FileOperationStatus.Error ? "alert-danger" : Result.Status == FileOperationStatus.Success ? "alert-success" : "alert-info")" role="status" aria-live="polite" aria-atomic="true">
-        <p>@Result.Message</p>
-        @if (Result.Path != null)
-        {
-            <p class="text-break">@Result.Path</p>
-            <button class="btn btn-outline-secondary" disabled="@busy" @onclick="OpenFolder">Ordner öffnen</button>
-        }
-        @if (Result.Details != null)
-        {
-            <details><summary>Technische Details</summary><p class="text-break">@Result.Details</p></details>
-        }
-        @if (openResult != null)
-        {
-            <p role="alert">@openResult.Message</p>
-            @if (openResult.Details != null) { <details><summary>Technische Details</summary>@openResult.Details</details> }
-        }
-    </div>
-}
-
@code {
    [Parameter] public FileOperationResult? Result { get; set; }
-    private FileOperationResult? openResult;
    private FileOperationResult? previous;
-    private bool busy;
    protected override void OnParametersSet()
    {
-        if (previous != Result) { openResult = null; previous = Result; }
-    }
-    private async Task OpenFolder()
-    {
-        if (busy || Result?.Path == null) return;
-        busy = true;
-        try { openResult = await FileSaveService.OpenFolderAsync(Result.Path); }
-        finally { busy = false; }
+        if (Result == null || ReferenceEquals(previous, Result)) return;
+        previous = Result;
+        var result = Result;
+        Toasts.Show(result.Message + (result.Path != null ? " " + result.Path : ""),
+            result.Status == FileOperationStatus.Error ? ToastKind.Error : result.Status == FileOperationStatus.Success ? ToastKind.Success : ToastKind.Info,
+            result.Details, result.Path != null ? "Ordner öffnen" : null,
+            result.Path != null ? async () => {
+                var opened = await FileSaveService.OpenFolderAsync(result.Path);
+                Toasts.Show(opened.Message, opened.Status == FileOperationStatus.Error ? ToastKind.Error : ToastKind.Info, opened.Details);
+            } : null);
    }
 }
@@ -0,0 +1,38 @@
+@implements IDisposable
+@inject ToastService Toasts
+
+<div class="toast-stack" aria-label="Meldungen">
+    @foreach (var toast in Toasts.Messages)
+    {
+        <section @key="toast.Id" class="app-toast toast-@toast.Kind.ToString().ToLowerInvariant()"
+                 role="@(toast.Kind == ToastKind.Error ? "alert" : "status")" aria-live="@(toast.Kind == ToastKind.Error ? "assertive" : "polite")" aria-atomic="true"
+                 @onmouseenter="() => Toasts.Pause(toast.Id)" @onmouseleave="() => Toasts.Resume(toast.Id)"
+                 @onfocusin="() => Toasts.Pause(toast.Id)" @onfocusout="() => Toasts.Resume(toast.Id)">
+            <button type="button" class="toast-close" aria-label="Meldung schließen" @onclick="() => Toasts.Dismiss(toast.Id)">×</button>
+            <p>@toast.Message</p>
+            @if (toast.Action != null)
+            {
+                <button type="button" class="btn btn-outline-secondary" @onclick="() => RunAction(toast)">@toast.ActionLabel</button>
+            }
+            @if (toast.Details != null)
+            {
+                <details><summary>Technische Details</summary><p class="text-break">@toast.Details</p></details>
+            }
+        </section>
+    }
+</div>
+
+@code {
+    private readonly HashSet<Guid> running = [];
+    protected override void OnInitialized() => Toasts.Changed += Refresh;
+    private void Refresh() => _ = InvokeAsync(StateHasChanged);
+    private async Task RunAction(ToastMessage toast)
+    {
+        if (!running.Add(toast.Id)) return;
+        Toasts.Pause(toast.Id);
+        try { await toast.Action!(); }
+        catch (Exception ex) { Toasts.Show("Die Aktion konnte nicht abgeschlossen werden. Bitte erneut versuchen.", ToastKind.Error, ex.Message); }
+        finally { running.Remove(toast.Id); Toasts.Resume(toast.Id); }
+    }
+    public void Dispose() => Toasts.Changed -= Refresh;
+}
@@ -1,3 +1,4 @@
+@inject ToastService Toasts
@inject ReportingPeriod Period
@page "/accounts/{AccountId:int}"
@inject IAccountService AccountService
@@ -9,21 +10,7 @@

 <div class="container-fluid">
    <OperationNotice Result="fileResult" />
-    @if (fileBusy) { <p role="status" aria-live="polite">Dateiaktion läuft … Bitte warten.</p> }

-    @if (lastSaved != null)
-    {
-        <div class="alert alert-success" role="status" aria-live="polite">
-            @lastSaved.Kind über @FormatAmount(lastSaved.Amount) @(lastSaved.Edited ? "aktualisiert" : "gespeichert").
-        </div>
-    }
-    @if (savedOutsideYear.HasValue)
-    {
-        <div class="alert alert-info" role="status">
-            Die Buchung wurde im Jahr @savedOutsideYear gespeichert und liegt außerhalb der aktuellen Ansicht.
-            <button class="btn btn-outline-primary" @onclick="ShowSavedYear">Buchung im Jahr @savedOutsideYear anzeigen</button>
-        </div>
-    }
    @if (account == null)
    {
        <div class="text-center py-5">
@@ -41,21 +28,21 @@
            </div>
        </div>

-        <div class="d-flex align-items-center gap-2 py-3 flex-wrap">
+        <div class="action-toolbar">
            <button class="btn btn-secondary btn-nav" @onclick="NavigateBack">
-                <i class="bi bi-arrow-left"></i> Zurück
+                <i class="bi bi-arrow-left"></i><span>Zurück</span>
            </button>
            <button class="btn btn-success btn-nav" @onclick="() => showAddEntry = true">
-                <i class="bi bi-plus-lg"></i> Einnahme oder Ausgabe erfassen
+                <i class="bi bi-plus-lg"></i> <span>Einnahme oder<br /> Ausgabe erfassen</span>
            </button>
            <button class="btn btn-info btn-nav" @onclick="() => showAddTransfer = true">
-                <i class="bi bi-arrow-left-right"></i> Geld zwischen Konten verschieben
+                <i class="bi bi-arrow-left-right"></i> <span>Geld zwischen<br /> Konten verschieben</span>
            </button>
            <button class="btn btn-dark btn-nav" @onclick="HandleExport" disabled="@fileBusy">
-                <i class="bi bi-file-earmark-pdf"></i> Als PDF speichern
+                <i class="bi bi-file-earmark-pdf"></i> <span>Als PDF<br /> speichern</span>
            </button>
            <button class="btn btn-nav btn-primary" @onclick="OpenYearFilterDialog">
-                <i class="bi bi-funnel"></i> @GetFilterLabel()
+                <i class="bi bi-funnel"></i><span>@GetFilterLabel()</span>
            </button>
        </div>

@@ -1,3 +1,4 @@
+using Duempelkas.App.Services;
 using Duempelkas.App.Services.Models;
 using Microsoft.AspNetCore.Components;

@@ -10,6 +11,10 @@ public partial class AccountDetail
    [Parameter]
    public int AccountId { get; set; }

+    [SupplyParameterFromQuery(Name = "jahr")]
+    public int? QueryYear { get; set; }
+    private int? previousQueryYear;
+
    #endregion

    #region Fields
@@ -53,6 +58,8 @@ public partial class AccountDetail

    protected override async Task OnParametersSetAsync()
    {
+        if (QueryYear.HasValue && QueryYear != previousQueryYear) selectedYear = QueryYear;
+        previousQueryYear = QueryYear;
        await LoadAll();
    }

@@ -115,6 +122,12 @@ public partial class AccountDetail
        await LoadAll();
        lastSaved = saved;
        savedOutsideYear = selectedYear.HasValue && selectedYear.Value != saved.Date.Year ? saved.Date.Year : null;
+        var nav = Navigation;
+        var period = Period;
+        var accountId = AccountId;
+        Toasts.Show($"{saved.Kind} über {FormatAmount(saved.Amount)} {(saved.Edited ? "aktualisiert" : "gespeichert")}.", ToastKind.Success,
+            actionLabel: savedOutsideYear.HasValue ? $"Buchung im Jahr {saved.Date.Year} anzeigen" : null,
+            action: savedOutsideYear.HasValue ? () => { period.Year = saved.Date.Year; nav.NavigateTo($"/accounts/{accountId}?jahr={saved.Date.Year}"); return Task.CompletedTask; } : null);
        showAddEntry = false;
        showAddTransfer = false;
        editingEntry = null;
@@ -187,6 +200,7 @@ public partial class AccountDetail
    private async Task HandleExport()
    {
        if (fileBusy) return;
+        var busyToast = Toasts.Show("Dateiaktion läuft … Bitte warten.", persistent: true);
        fileBusy = true;
        fileResult = null;
        try
@@ -199,12 +213,13 @@ public partial class AccountDetail

        }
        catch (Exception ex) { fileResult = FileOperationResult.Error(ex); }
-        finally { fileBusy = false; }
+        finally { fileBusy = false; Toasts.Dismiss(busyToast); }
    }

    private async Task HandleOpenSavedPdf()
    {
        if (fileBusy) return;
+        var busyToast = Toasts.Show("Dateiaktion läuft … Bitte warten.", persistent: true);
        fileBusy = true;
        fileResult = null;
        try
@@ -218,7 +233,7 @@ public partial class AccountDetail

        }
        catch (Exception ex) { fileResult = FileOperationResult.Error(ex); }
-        finally { fileBusy = false; }
+        finally { fileBusy = false; Toasts.Dismiss(busyToast); }
    }

    private void CancelOpenSavedPdf()
@@ -1,3 +1,4 @@
+@inject ToastService Toasts
@inject ReportingPeriod Period
@page "/"
@inject IAccountService AccountService
@@ -10,7 +11,6 @@

 <div class="container-fluid">
    <OperationNotice Result="fileResult" />
-    @if (fileBusy) { <p role="status" aria-live="polite">Dateiaktion läuft … Bitte warten.</p> }


    <div class="d-flex justify-content-between align-items-center">
@@ -24,25 +24,25 @@
        </div>
    </div>

-    <div class="d-flex align-items-center gap-2 py-3 flex-wrap">
+    <div class="action-toolbar">
        <button class="btn-nav btn-primary" @onclick="() => showAddAccount = true">
-            <i class="bi bi-plus-lg"></i> Neues Konto
+            <i class="bi bi-plus-lg"></i><span>Neues Konto</span>
        </button>
        <button class="btn-nav btn-success" @onclick="HandleBackupAsync" disabled="@fileBusy">
-            <i class="bi bi-save"></i> Sicherung erstellen
+            <i class="bi bi-save"></i> <span>Sicherung<br /> erstellen</span>
        </button>

        <button class="btn-nav btn-dark" @onclick="HandleDashboardExportAsync" disabled="@fileBusy">
-            <i class="bi bi-file-earmark-pdf"></i> Als PDF speichern
+            <i class="bi bi-file-earmark-pdf"></i> <span>Als PDF<br /> speichern</span>
        </button>
        <button class="btn btn-nav btn-primary" @onclick="OpenYearFilterDialog">
-            <i class="bi bi-funnel"></i> @GetFilterLabel()
+            <i class="bi bi-funnel"></i><span>@GetFilterLabel()</span>
        </button>
        <button class="btn btn-nav btn-secondary" @onclick="ToggleThemeAsync" title="Farbmodus wechseln">
-            <i class="@ThemeButtonIconClass"></i> Modus<br>@ThemeButtonLabel
+            <i class="@ThemeButtonIconClass"></i><span>Modus<br />@ThemeButtonLabel</span>
        </button>
        <details class="more-actions">
-            <summary class="btn btn-outline-secondary">Weitere Aktionen</summary>
+            <summary class="btn btn-nav btn-outline-secondary"><i class="bi bi-three-dots"></i><span>Weitere<br /> Aktionen</span></summary>
            <button class="btn btn-warning mt-2" @onclick="HandleRestoreAsync" disabled="@fileBusy">
                <i class="bi bi-arrow-counterclockwise"></i> Sicherung zurückspielen
            </button>
@@ -101,6 +101,7 @@ public partial class Dashboard
    private async Task HandleBackupAsync()
    {
        if (fileBusy) return;
+        var busyToast = Toasts.Show("Dateiaktion läuft … Bitte warten.", persistent: true);
        fileBusy = true;
        fileResult = null;
        try
@@ -109,7 +110,7 @@ public partial class Dashboard

        }
        catch (Exception ex) { fileResult = FileOperationResult.Error(ex); }
-        finally { fileBusy = false; }
+        finally { fileBusy = false; Toasts.Dismiss(busyToast); }
    }

    private Task HandleRestoreAsync()
@@ -126,6 +127,7 @@ public partial class Dashboard
    private async Task HandleConfirmRestore()
    {
        if (fileBusy) return;
+        var busyToast = Toasts.Show("Dateiaktion läuft … Bitte warten.", persistent: true);
        fileBusy = true;
        fileResult = null;
        try
@@ -136,12 +138,13 @@ public partial class Dashboard

        }
        catch (Exception ex) { fileResult = FileOperationResult.Error(ex); }
-        finally { fileBusy = false; }
+        finally { fileBusy = false; Toasts.Dismiss(busyToast); }
    }

    private async Task HandleDashboardExportAsync()
    {
        if (fileBusy) return;
+        var busyToast = Toasts.Show("Dateiaktion läuft … Bitte warten.", persistent: true);
        fileBusy = true;
        fileResult = null;
        try
@@ -154,7 +157,7 @@ public partial class Dashboard

        }
        catch (Exception ex) { fileResult = FileOperationResult.Error(ex); }
-        finally { fileBusy = false; }
+        finally { fileBusy = false; Toasts.Dismiss(busyToast); }
    }

    private void OpenYearFilterDialog()
@@ -177,6 +180,7 @@ public partial class Dashboard
    private async Task HandleOpenSavedPdf()
    {
        if (fileBusy) return;
+        var busyToast = Toasts.Show("Dateiaktion läuft … Bitte warten.", persistent: true);
        fileBusy = true;
        fileResult = null;
        try
@@ -190,7 +194,7 @@ public partial class Dashboard

        }
        catch (Exception ex) { fileResult = FileOperationResult.Error(ex); }
-        finally { fileBusy = false; }
+        finally { fileBusy = false; Toasts.Dismiss(busyToast); }
    }

    private void CancelOpenSavedPdf()
@@ -8,6 +8,9 @@ public static partial class BookingInput
    [GeneratedRegex(@"^\d+([,.]\d{1,2})?$", RegexOptions.CultureInvariant)]
    private static partial Regex AmountPattern();

+    public static bool IsAmountDraft(string value, bool allowNegative = false) =>
+        Regex.IsMatch(value, allowNegative ? @"^-?\d*([,.]\d{0,2})?$" : @"^\d*([,.]\d{0,2})?$", RegexOptions.CultureInvariant);
+
    public static bool TryAmount(string text, out decimal amount)
    {
        amount = 0;
@@ -0,0 +1,65 @@
+namespace Duempelkas.App.Services;
+
+public enum ToastKind { Info, Success, Error }
+public sealed record ToastMessage(Guid Id, string Message, ToastKind Kind, string? Details,
+    string? ActionLabel, Func<Task>? Action);
+
+public sealed class ToastService : IDisposable
+{
+    private readonly object sync = new();
+    private readonly Dictionary<Guid, (ToastMessage Message, Timer? Timer, TimeSpan? Remaining, DateTimeOffset Started)> items = [];
+    public event Action? Changed;
+    public IReadOnlyList<ToastMessage> Messages { get { lock (sync) return items.Values.Select(x => x.Message).ToArray(); } }
+
+    public Guid Show(string message, ToastKind kind = ToastKind.Info, string? details = null,
+        string? actionLabel = null, Func<Task>? action = null, TimeSpan? duration = null, bool persistent = false)
+    {
+        var id = Guid.NewGuid();
+        var lifetime = persistent ? (TimeSpan?)null : duration ?? TimeSpan.FromSeconds(kind == ToastKind.Error ? 15 : 9);
+        var toast = new ToastMessage(id, message, kind, details, actionLabel, action);
+        lock (sync)
+        {
+            Timer? timer = lifetime.HasValue ? new Timer(_ => Dismiss(id), null, Timeout.InfiniteTimeSpan, Timeout.InfiniteTimeSpan) : null;
+            items[id] = (toast, timer, lifetime, DateTimeOffset.UtcNow);
+            if (lifetime.HasValue) timer!.Change(lifetime.Value, Timeout.InfiniteTimeSpan);
+        }
+        Changed?.Invoke();
+        return id;
+    }
+
+    public void Pause(Guid id)
+    {
+        lock (sync)
+        {
+            if (!items.TryGetValue(id, out var item) || item.Remaining == null || item.Started == default) return;
+            item.Timer?.Change(Timeout.InfiniteTimeSpan, Timeout.InfiniteTimeSpan);
+            var left = item.Remaining.Value - (DateTimeOffset.UtcNow - item.Started);
+            items[id] = (item.Message, item.Timer, left > TimeSpan.Zero ? left : TimeSpan.FromMilliseconds(1), default);
+        }
+    }
+
+    public void Resume(Guid id)
+    {
+        lock (sync)
+        {
+            if (!items.TryGetValue(id, out var item) || item.Remaining == null || item.Started != default) return;
+            items[id] = (item.Message, item.Timer, item.Remaining, DateTimeOffset.UtcNow);
+            item.Timer?.Change(item.Remaining.Value, Timeout.InfiniteTimeSpan);
+        }
+    }
+
+    public void Dismiss(Guid id)
+    {
+        lock (sync)
+        {
+            if (!items.Remove(id, out var item)) return;
+            item.Timer?.Dispose();
+        }
+        Changed?.Invoke();
+    }
+
+    public void Dispose()
+    {
+        lock (sync) { foreach (var item in items.Values) item.Timer?.Dispose(); items.Clear(); }
+    }
+}