Prima implementazione pagina "Attività"

2026-06-08 09:25:29 +02:00
parent 4661922633
commit b7955f0e1f
34 changed files with 1582 additions and 266 deletions
@@ -0,0 +1,43 @@
+@inject IJSRuntime JS
+@implements IAsyncDisposable
+
+<div class="signature-container">
+    <canvas id="@_canvasId" width="600" height="200" class="signature-canvas"></canvas>
+    <div class="signature-actions">
+        <button type="button" class="btn-clear-sig" @onclick="CancellaFirma">
+            <i class="ri-delete-bin-line"></i>
+            Cancella firma
+        </button>
+    </div>
+</div>
+
+@code {
+    [Parameter] public EventCallback<string> OnFirmaCambiata { get; set; }
+
+    readonly string _canvasId = $"sig-{Guid.NewGuid():N}";
+    DotNetObjectReference<SignaturePad>? _dotNetRef;
+
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if (firstRender)
+        {
+            _dotNetRef = DotNetObjectReference.Create(this);
+            await JS.InvokeVoidAsync("signaturePad.init", _canvasId, _dotNetRef);
+        }
+    }
+
+    [JSInvokable]
+    public Task OnSignatureChanged(string dataUrl) => OnFirmaCambiata.InvokeAsync(dataUrl);
+
+    async Task CancellaFirma()
+    {
+        await JS.InvokeVoidAsync("signaturePad.clear", _canvasId);
+        await OnFirmaCambiata.InvokeAsync(string.Empty);
+    }
+
+    public async ValueTask DisposeAsync()
+    {
+        _dotNetRef?.Dispose();
+        await ValueTask.CompletedTask;
+    }
+}