Separa le misure per ogni oggetto

Components/Pages/Home.razor

@@ -472,6 +472,7 @@
     private bool DrawToolsVisible { get; set; }
     private bool TrailEnabled { get; set; }
     private bool LayerPanelOpen { get; set; }
+    private DotNetObjectReference<Home>? MapCallbackReference { get; set; }
     private bool IncludeCadastralParcels { get; set; } = true;
     private bool IncludeKmlSheetLayer { get; set; }
     private bool ShowImportedSheetLayer { get; set; }
@@ -570,7 +571,8 @@
     {
         if (firstRender)
         {
-            await JS.InvokeVoidAsync("lmeMap.init");
+            MapCallbackReference = DotNetObjectReference.Create(this);
+            await JS.InvokeVoidAsync("lmeMap.init", MapCallbackReference);
             await ApplyFlagPreferencesToMapAsync();
             await CenterOnInitialLocationAsync();
             await MigrateLegacyProjectAsync();
@@ -1047,6 +1049,21 @@
         await JS.InvokeVoidAsync("lmeMap.setDrawingMeasurementsVisible", ShowDrawingMeasurements);
     }
 
+    [JSInvokable]
+    public Task SetMeasurementsFromLayerManager(string category, bool enabled)
+    {
+        if (category == "imported")
+        {
+            ShowImportedMeasurements = enabled;
+        }
+        else if (category == "drawings")
+        {
+            ShowDrawingMeasurements = enabled;
+        }
+        SaveFlagPreferences();
+        return InvokeAsync(StateHasChanged);
+    }
+
     private async Task ToggleDrawTools()
     {
         DrawToolsVisible = !DrawToolsVisible;
@@ -1503,6 +1520,7 @@
         LocationService.StopTracking();
         GpsLookupCancellation?.Cancel();
         GpsLookupCancellation?.Dispose();
+        MapCallbackReference?.Dispose();
         return ValueTask.CompletedTask;
     }
 }