Show cadastral sheets while navigating

Components/Pages/Home.razor

@@ -109,13 +109,18 @@
             </section>
         }
 
-        <div class="gps-overlay @(ActiveTab == "search" ? "search-open" : null)">
+        <div class="gps-overlay @(ActiveTab == "search" ? "search-open" : null) @(GpsOverlayCollapsed ? "is-collapsed" : null)">
             <div class="gps-state">
                 <span id="gpsState">GPS non attivo</span>
                 <strong id="parcelState">Nessuna particella selezionata</strong>
             </div>
+            <div class="gps-actions">
                 <button class="gps-main" @onclick="ToggleGps">@(GpsActive ? "Ferma GPS" : "Avvia GPS")</button>
-            <button class="gps-center" @onclick="CenterOnGps" aria-label="Centra posizione">Centra</button>
+                <button class="gps-center" @onclick="CenterOnGps" aria-label="Centra posizione GPS">Centra</button>
+            </div>
+            <button class="gps-collapse" @onclick="ToggleGpsOverlay" aria-label="@(GpsOverlayCollapsed ? "Espandi pannello GPS" : "Riduci pannello GPS")" title="@(GpsOverlayCollapsed ? "Espandi pannello GPS" : "Riduci pannello GPS")">
+                <span aria-hidden="true">@(GpsOverlayCollapsed ? "+" : "−")</span>
+            </button>
         </div>
 
         @if (ActiveTab is not "map" and not "search")
@@ -553,6 +558,11 @@
                                 Trasparenza catasto
                                 <input type="range" min="0" max="1" step="0.05" value="@CadastralOpacity.ToString(System.Globalization.CultureInfo.InvariantCulture)" @onchange="ChangeCadastreOpacity" />
                             </label>
+                            <label>
+                                Durata messaggi mappa (secondi)
+                                <input type="number" min="0" max="30" step="1" @bind="MapMessageTimeoutSeconds" @bind:after="ApplyMapMessageOptions" />
+                            </label>
+                            <small class="field-help">Imposta 0 per lasciare i messaggi visibili fino alla chiusura manuale.</small>
                         </section>
 
                         <section class="panel-section">
@@ -689,7 +699,10 @@
             </aside>
         }
 
-        <div id="mapInfo" class="map-info">Pronto</div>
+        <div id="mapInfo" class="map-info" role="status" aria-live="polite">
+            <span id="mapInfoText" class="map-info-text">Pronto</span>
+            <button type="button" class="map-info-close" onclick="window.lmeMap.hideInfo()" aria-label="Chiudi messaggio" title="Chiudi messaggio">×</button>
+        </div>
 
         <div id="wmsPreview" class="wms-preview" hidden>
             <section class="wms-preview-dialog" role="dialog" aria-modal="true" aria-labelledby="wmsPreviewTitle">
@@ -743,8 +756,10 @@
     private string CatalogMessage { get; set; } = string.Empty;
     private double? CatalogFraction { get; set; }
     private double CadastralOpacity { get; set; } = 0.75;
+    private int MapMessageTimeoutSeconds { get; set; } = 3;
     private bool CatalogBusy { get; set; }
     private bool GpsActive { get; set; }
+    private bool GpsOverlayCollapsed { get; set; }
     private bool ShowGpsPosition { get; set; } = true;
     private bool ShowSelectedParcels { get; set; } = true;
     private bool ShowImportedData { get; set; } = true;
@@ -1305,7 +1320,7 @@
         Interlocked.Exchange(ref LastGpsLookupAt, now);
         try
         {
-            var radius = Math.Clamp(location.Accuracy ?? 5, 2, 25);
+            var radius = Math.Clamp(location.Accuracy ?? 12, 12, 30);
             var xml = await OfficialCadastreService.GetParcelsNearAsync(
                 location.Latitude,
                 location.Longitude,
@@ -2094,6 +2109,12 @@
 
     private Task CenterOnGps() => JS.InvokeVoidAsync("lmeMap.centerOnGps").AsTask();
 
+    private void ToggleGpsOverlay()
+    {
+        GpsOverlayCollapsed = !GpsOverlayCollapsed;
+        SaveFlagPreferences();
+    }
+
     private string L(string key) => L10n.T(key);
 
     private bool CanUse(string feature) => Entitlements.CanUse(feature);
@@ -2356,6 +2377,11 @@
         OfflineExtraZoomLevels = Preferences.Default.Get($"{FlagPreferencePrefix}offline_zoom_levels", 2);
         GpsProximityEnabled = GetFlagPreference("gps_proximity", true);
         GpsBoundaryAlertEnabled = GetFlagPreference("gps_boundary_alert", false);
+        GpsOverlayCollapsed = GetFlagPreference("gps_overlay_collapsed", false);
+        MapMessageTimeoutSeconds = Math.Clamp(
+            Preferences.Default.Get($"{FlagPreferencePrefix}map_message_timeout", 3),
+            0,
+            30);
 
         foreach (var layer in CadastralLayers)
         {
@@ -2391,6 +2417,8 @@
         Preferences.Default.Set($"{FlagPreferencePrefix}offline_zoom_levels", OfflineExtraZoomLevels);
         SetFlagPreference("gps_proximity", GpsProximityEnabled);
         SetFlagPreference("gps_boundary_alert", GpsBoundaryAlertEnabled);
+        SetFlagPreference("gps_overlay_collapsed", GpsOverlayCollapsed);
+        Preferences.Default.Set($"{FlagPreferencePrefix}map_message_timeout", MapMessageTimeoutSeconds);
 
         foreach (var layer in CadastralLayers)
         {
@@ -2400,6 +2428,7 @@
 
     private async Task ApplyFlagPreferencesToMapAsync()
     {
+        await JS.InvokeVoidAsync("lmeMap.setInfoTimeout", MapMessageTimeoutSeconds);
         await JS.InvokeVoidAsync("lmeMap.setIncludeKmlSheetLayer", IncludeKmlSheetLayer);
         await JS.InvokeVoidAsync("lmeMap.setImportedLayerVisible", ShowImportedData);
         await JS.InvokeVoidAsync("lmeMap.setImportedSheetLayerVisible", ShowImportedSheetLayer);
@@ -2416,6 +2445,13 @@
         }
     }
 
+    private async Task ApplyMapMessageOptions()
+    {
+        MapMessageTimeoutSeconds = Math.Clamp(MapMessageTimeoutSeconds, 0, 30);
+        SaveFlagPreferences();
+        await JS.InvokeVoidAsync("lmeMap.setInfoTimeout", MapMessageTimeoutSeconds);
+    }
+
     private async Task ApplyAdvancedOptions()
     {
         SaveFlagPreferences();

LMEMappeCatastaliApp.csproj

@@ -28,8 +28,8 @@
         <ApplicationId>it.liviomerola.lmemappecatastali.pro</ApplicationId>
 
         <!-- Versions -->
-        <ApplicationDisplayVersion>1.0.7</ApplicationDisplayVersion>
+        <ApplicationDisplayVersion>1.0.11</ApplicationDisplayVersion>
-        <ApplicationVersion>107</ApplicationVersion>
+        <ApplicationVersion>111</ApplicationVersion>
         <Version>$(ApplicationDisplayVersion)</Version>
 
         <!-- To develop, package, and publish an app to the Microsoft Store, see: https://aka.ms/MauiTemplateUnpackaged -->

PLAY_STORE_PRO_CHECKLIST.md

@@ -4,7 +4,7 @@
 
 - Nome: LME Mappe Catastali Pro.
 - Package name Android: `it.liviomerola.lmemappecatastali.pro`.
-- Versione corrente da pubblicare: `1.0.7` / version code `107`.
+- Versione corrente da pubblicare: `1.0.11` / version code `111`.
 - Formato Release Android: Android App Bundle (`.aab`).
 - Target SDK Release: Android 16 / API 36.
 

Platforms/Android/AndroidPlayBillingService.cs

@@ -9,6 +9,7 @@ public sealed class AndroidPlayBillingService : Java.Lang.Object, IPlayBillingSe
     private readonly SemaphoreSlim _connectionLock = new(1, 1);
     private readonly BillingClient _client;
     private TaskCompletionSource<PlayBillingResult>? _purchaseCompletion;
+    private string? _lastCatalogFailure;
 
     public AndroidPlayBillingService()
     {
@@ -31,7 +32,12 @@ public sealed class AndroidPlayBillingService : Java.Lang.Object, IPlayBillingSe
         {
             var details = await GetProductDetailsAsync(cancellationToken);
             return details?.GetSubscriptionOfferDetails()?
-                .Where(item => string.IsNullOrEmpty(item.OfferId))
+                .Where(item => !string.IsNullOrWhiteSpace(item.BasePlanId)
+                    && !string.IsNullOrWhiteSpace(item.OfferToken))
+                .GroupBy(item => item.BasePlanId, StringComparer.Ordinal)
+                .Select(group => group
+                    .OrderBy(item => string.IsNullOrEmpty(item.OfferId) ? 0 : 1)
+                    .First())
                 .Select(item =>
                 {
                     var phase = item.PricingPhases.PricingPhaseList.LastOrDefault();
@@ -99,13 +105,25 @@ public sealed class AndroidPlayBillingService : Java.Lang.Object, IPlayBillingSe
 
             var details = await GetProductDetailsAsync(cancellationToken);
             var offer = details?.GetSubscriptionOfferDetails()?
-                .FirstOrDefault(item => item.BasePlanId == basePlanId
+                .Where(item => item.BasePlanId == basePlanId
-                    && string.IsNullOrEmpty(item.OfferId)
+                    && !string.IsNullOrWhiteSpace(item.OfferToken))
-                    && !string.IsNullOrWhiteSpace(item.OfferToken));
+                .OrderBy(item => string.IsNullOrEmpty(item.OfferId) ? 0 : 1)
-            if (details is null || offer is null)
+                .FirstOrDefault();
+            if (details is null)
             {
-                return PlayBillingResult.Failed(
+                return PlayBillingResult.Failed(_lastCatalogFailure
-                    $"Piano {basePlanId} non disponibile su Google Play. Verifica che l'abbonamento lme_pro e il piano siano attivi per il tuo Paese.");
+                    ?? "Google Play non ha restituito l'abbonamento lme_pro.");
+            }
+
+            if (offer is null)
+            {
+                var availablePlans = string.Join(", ", details.GetSubscriptionOfferDetails()?
+                    .Select(item => item.BasePlanId)
+                    .Where(item => !string.IsNullOrWhiteSpace(item))
+                    .Distinct(StringComparer.Ordinal) ?? []);
+                return PlayBillingResult.Failed(string.IsNullOrWhiteSpace(availablePlans)
+                    ? $"Google Play ha restituito lme_pro senza offerte acquistabili per il piano {basePlanId}."
+                    : $"Piano {basePlanId} non restituito da Google Play. Piani ricevuti: {availablePlans}.");
             }
 
             var productParams = BillingFlowParams.ProductDetailsParams.NewBuilder()
@@ -191,7 +209,17 @@ public sealed class AndroidPlayBillingService : Java.Lang.Object, IPlayBillingSe
             throw new InvalidOperationException(ToMessage(result.Result));
         }
 
-        return result.ProductDetailsList?.FirstOrDefault();
+        // The .NET async wrapper copies the Java result into the managed
+        // ProductDetails property; ProductDetailsList has no Java handle here.
+        var details = result.ProductDetails?.FirstOrDefault();
+        if (details is not null)
+        {
+            _lastCatalogFailure = null;
+            return details;
+        }
+
+        _lastCatalogFailure = "Google Play ha restituito un catalogo vuoto per lme_pro. Verifica account Play Store, adesione al test e origine dell'installazione.";
+        return null;
     }
 
     private async Task EnsureConnectedAsync(CancellationToken cancellationToken)

Platforms/Android/MainActivity.cs

@@ -102,7 +102,11 @@ public class MainActivity : MauiAppCompatActivity
         {
             if (view is null || insets is null) return insets;
             var systemBars = insets.GetInsets(WindowInsetsCompat.Type.SystemBars());
-            view.SetPadding(_left, _top, _right, systemBars?.Bottom ?? 0);
+            view.SetPadding(
+                _left,
+                systemBars?.Top ?? _top,
+                _right,
+                systemBars?.Bottom ?? 0);
             return insets;
         }
     }

README.md

@@ -4,6 +4,27 @@ App .NET MAUI Blazor Hybrid per Android, iOS, Mac Catalyst e Windows, pensata pe
 
 Informativa privacy: [PRIVACY_POLICY.md](PRIVACY_POLICY.md).
 
+## Versione Pro 1.0.11 test
+
+- Il flag Fogli catastali mostra il WMS di tutti i fogli agli zoom panoramici e, in dettaglio, il confine ufficiale WFS del foglio corrente anche senza dati caricati.
+- Se il foglio corrente e gia presente in un progetto o in un'importazione, l'overlay di navigazione non ne crea un duplicato.
+- La toolbar superiore rispetta l'area occupata dalla barra di stato e dalle notifiche Android.
+
+## Versione Pro 1.0.10 test
+
+- Migliora la compatibilita del servizio catastale AdE sui dispositivi Android meno recenti con HTTP/1.1, tentativi automatici e una ricerca GPS piu tollerante.
+- I messaggi sulla mappa si chiudono automaticamente dopo un intervallo configurabile, predefinito a 3 secondi, e includono un pulsante di chiusura.
+- La barra GPS mantiene sempre disponibili i comandi Avvia/Ferma e Centra, impilati sugli schermi stretti, e puo essere ridotta.
+
+## Versione Pro 1.0.9 test
+
+- Corregge la lettura del catalogo dal wrapper asincrono .NET di Google Play Billing, usando la raccolta managed `ProductDetails` popolata dal binding.
+
+## Versione Pro 1.0.8 test
+
+- Google Play Billing accetta tutte le offerte idonee restituite per i piani `monthly` e `yearly`, preferendo il piano base quando disponibile.
+- In caso di catalogo vuoto o prodotto non caricato, il messaggio mostra una diagnostica specifica restituita da Google Play.
+
 ## Versione Pro 1.0.7 test
 
 - I messaggi informativi su telefono vengono mostrati sopra i controlli zoom e possono occupare fino a tre righe senza sovrapporsi.

Services/OfficialCadastreService.cs

@@ -1,4 +1,6 @@
 using System.Globalization;
+using System.Net;
+using System.Net.Http.Headers;
 using System.Xml.Linq;
 
 namespace LMEMappeCatastaliApp.Services;
@@ -13,8 +15,9 @@ public sealed class OfficialCadastreService
 
     public OfficialCadastreService()
     {
-        _httpClient.DefaultRequestHeaders.UserAgent.ParseAdd("LMEMappeCatastali/0.2");
+        _httpClient.DefaultRequestHeaders.UserAgent.ParseAdd("LMEMappeCatastali/1.0 (Android)");
-        _httpClient.DefaultRequestHeaders.Accept.ParseAdd("application/gml+xml");
+        _httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/gml+xml"));
+        _httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/xml", 0.9));
     }
 
     public async Task<string> GetParcelsNearAsync(
@@ -22,14 +25,30 @@ public sealed class OfficialCadastreService
         double longitude,
         double radiusMeters,
         CancellationToken cancellationToken = default)
-        => await GetFeaturesNearAsync(
+    {
+        var firstRadius = Math.Clamp(radiusMeters, 12, 30);
+        var xml = await GetFeaturesNearAsync(
             latitude,
             longitude,
-            radiusMeters,
+            firstRadius,
             "CP:CadastralParcel",
             100,
             cancellationToken);
 
+        if (firstRadius >= 30 || ContainsFeatures(xml))
+        {
+            return xml;
+        }
+
+        return await GetFeaturesNearAsync(
+            latitude,
+            longitude,
+            30,
+            "CP:CadastralParcel",
+            100,
+            cancellationToken);
+    }
+
     public async Task<string> GetSheetsNearAsync(
         double latitude,
         double longitude,
@@ -78,17 +97,67 @@ public sealed class OfficialCadastreService
         var url = WfsEndpoint + "?" + string.Join("&", query.Select(item =>
             $"{Uri.EscapeDataString(item.Key)}={Uri.EscapeDataString(item.Value)}"));
 
-        using var response = await _httpClient.GetAsync(url, HttpCompletionOption.ResponseContentRead, cancellationToken);
+        for (var attempt = 0; attempt < 3; attempt++)
-        if (!response.IsSuccessStatusCode)
         {
-            throw new HttpRequestException($"Il servizio WFS AdE ha risposto {((int)response.StatusCode)}.");
+            try
-        }
+            {
+                using var request = new HttpRequestMessage(HttpMethod.Get, url)
+                {
+                    Version = HttpVersion.Version11,
+                    VersionPolicy = HttpVersionPolicy.RequestVersionOrLower
+                };
+                request.Headers.CacheControl = new CacheControlHeaderValue { NoCache = true };
 
+                using var response = await _httpClient.SendAsync(
+                    request,
+                    HttpCompletionOption.ResponseContentRead,
+                    cancellationToken);
+                if (response.IsSuccessStatusCode)
+                {
                     var xml = await response.Content.ReadAsStringAsync(cancellationToken);
                     ThrowIfExceptionReport(xml);
                     return xml;
                 }
 
+                if (attempt < 2 && IsTransient(response.StatusCode))
+                {
+                    await Task.Delay(TimeSpan.FromMilliseconds(500 * (attempt + 1)), cancellationToken);
+                    continue;
+                }
+
+                throw new HttpRequestException($"Il servizio WFS AdE ha risposto {((int)response.StatusCode)}.");
+            }
+            catch (HttpRequestException) when (attempt < 2)
+            {
+                await Task.Delay(TimeSpan.FromMilliseconds(500 * (attempt + 1)), cancellationToken);
+            }
+            catch (TaskCanceledException) when (!cancellationToken.IsCancellationRequested && attempt < 2)
+            {
+                await Task.Delay(TimeSpan.FromMilliseconds(500 * (attempt + 1)), cancellationToken);
+            }
+        }
+
+        throw new HttpRequestException("Il servizio WFS AdE non ha risposto dopo tre tentativi.");
+    }
+
+    private static bool IsTransient(HttpStatusCode statusCode) =>
+        statusCode is HttpStatusCode.RequestTimeout or HttpStatusCode.TooManyRequests
+        || (int)statusCode >= 500;
+
+    private static bool ContainsFeatures(string xml)
+    {
+        try
+        {
+            var document = XDocument.Parse(xml);
+            return document.Descendants().Any(element =>
+                element.Name.LocalName is "member" or "featureMember");
+        }
+        catch (System.Xml.XmlException)
+        {
+            return false;
+        }
+    }
+
     private static string Format(double value) => value.ToString("R", CultureInfo.InvariantCulture);
 
     private static void ThrowIfExceptionReport(string xml)

wwwroot/css/app.css

@@ -1245,6 +1245,16 @@ input[type="checkbox"] {
     transition: top 140ms ease;
 }
 
+.gps-overlay.is-collapsed {
+    grid-template-columns: auto;
+    padding: 5px;
+}
+
+.gps-overlay.is-collapsed .gps-state,
+.gps-overlay.is-collapsed .gps-actions {
+    display: none;
+}
+
 .gps-overlay.search-open {
     top: 140px;
 }
@@ -1267,8 +1277,14 @@ input[type="checkbox"] {
     color: #a33227;
 }
 
+.gps-actions {
+    display: grid;
+    gap: 5px;
+}
+
 .gps-main,
-.gps-center {
+.gps-center,
+.gps-collapse {
     min-height: 38px;
     padding: 0 10px;
     white-space: nowrap;
@@ -1279,6 +1295,15 @@ input[type="checkbox"] {
     color: var(--ink);
 }
 
+.gps-collapse {
+    width: 38px;
+    padding: 0;
+    background: #e7ecef;
+    color: var(--ink);
+    font-size: 22px;
+    line-height: 1;
+}
+
 .leaflet-top.leaflet-right {
     top: 68px;
     right: 2px;
@@ -1293,6 +1318,21 @@ input[type="checkbox"] {
     height: 38px;
 }
 
+.cadastral-sheet-label {
+    width: auto !important;
+    height: auto !important;
+    border: 1px solid #9a5b00;
+    border-radius: 4px;
+    padding: 3px 6px;
+    background: rgba(255, 251, 235, 0.94);
+    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.28);
+    color: #713f12;
+    font-size: 11px;
+    font-weight: 800;
+    line-height: 1.2;
+    white-space: nowrap;
+}
+
 .lme-drawing-scope-actions a[aria-disabled="true"] {
     opacity: 0.45;
     pointer-events: none;
@@ -1566,11 +1606,36 @@ label {
     z-index: 820;
     max-width: min(620px, calc(100% - 460px));
     border-radius: 8px;
-    padding: 9px 11px;
+    display: flex;
+    align-items: flex-start;
+    gap: 8px;
+    padding: 7px 7px 7px 11px;
     background: rgba(22, 31, 38, 0.88);
     color: #fff;
     font-size: 12px;
-    pointer-events: none;
+    pointer-events: auto;
+}
+
+.map-info[hidden] {
+    display: none;
+}
+
+.map-info-text {
+    min-width: 0;
+    padding: 2px 0;
+    overflow-wrap: anywhere;
+}
+
+.map-info-close {
+    flex: 0 0 28px;
+    width: 28px;
+    min-height: 28px;
+    padding: 0;
+    border: 0;
+    background: transparent;
+    color: #fff;
+    font-size: 20px;
+    line-height: 1;
 }
 
 .wms-preview[hidden] {
@@ -1817,12 +1882,12 @@ footer {
     }
 
     .leaflet-top.leaflet-right {
-        top: 122px;
+        top: 174px;
         right: 0;
     }
 
     .map-stage.search-active .leaflet-top.leaflet-right {
-        top: 190px;
+        top: 242px;
     }
 
     .gps-main,
@@ -1835,12 +1900,15 @@ footer {
         right: 8px;
         bottom: calc(var(--nav-height) + 116px);
         left: 8px;
-        display: -webkit-box;
         max-width: none;
         overflow: hidden;
         line-height: 1.35;
-        overflow-wrap: anywhere;
         white-space: normal;
+    }
+
+    .map-info-text {
+        display: -webkit-box;
+        overflow: hidden;
         -webkit-box-orient: vertical;
         -webkit-line-clamp: 3;
     }
@@ -1864,8 +1932,13 @@ footer {
         min-width: 0;
     }
 
+    .gps-overlay {
+        grid-template-columns: minmax(0, 1fr) auto auto;
+    }
+
+    .gps-main,
     .gps-center {
-        display: none;
+        min-width: 86px;
     }
 
     .bottom-tabs button {

wwwroot/js/lme-map.js

@@ -14,8 +14,14 @@ const lmeState = {
         "cadastre"
     ],
     cadastre: null,
+    cadastreZoning: null,
     cadastreLayers: ["CP.CadastralParcel", "codice_plla", "CP.CadastralZoning", "fabbricati"],
     cadastreOpacity: 0.75,
+    navigationSheetLayer: null,
+    navigationSheetFeature: null,
+    navigationSheetLabel: null,
+    navigationSheetRefreshTimer: null,
+    navigationSheetRequestId: 0,
     imported: null,
     importedVisible: true,
     importedSheets: null,
@@ -50,6 +56,8 @@ const lmeState = {
     gpsTrailStartedAt: null,
     gpsWatchId: null,
     lastPosition: null,
+    infoTimeoutSeconds: 3,
+    infoTimer: null,
     fileImportBound: false,
     resizeBound: false,
     googleMapsLoading: null,
@@ -185,7 +193,9 @@ window.lmeMap = {
     setLocalization,
     setEntitlements,
     importExternalGisFile,
-    showInfo: setInfo
+    showInfo: setInfo,
+    hideInfo,
+    setInfoTimeout
 };
 
 function setLocalization(options = {}) {
@@ -301,6 +311,13 @@ function init(dotNetReference) {
     lmeState.drawingMeasurements = L.layerGroup().addTo(lmeState.map);
     lmeState.selectedParcelsLayer = L.featureGroup().addTo(lmeState.map);
     lmeState.gpsParcelLayer = L.featureGroup().addTo(lmeState.map);
+    const navigationSheetPane = lmeState.map.createPane("navigationSheetPane");
+    navigationSheetPane.style.zIndex = "465";
+    navigationSheetPane.style.pointerEvents = "none";
+    const cadastreZoningPane = lmeState.map.createPane("cadastreZoningPane");
+    cadastreZoningPane.style.zIndex = "455";
+    cadastreZoningPane.style.pointerEvents = "none";
+    lmeState.navigationSheetLayer = L.layerGroup().addTo(lmeState.map);
     lmeState.gpsTrail = L.polyline([], {
         pane: "gpsTrailPane",
         color: "#f97316",
@@ -335,6 +352,7 @@ function init(dotNetReference) {
     lmeState.map.on("moveend", () => {
         void updateAzureAttribution();
         scheduleMeasurementRefresh();
+        scheduleNavigationSheetRefresh();
     });
 
     document.getElementById("closeWmsPreview")?.addEventListener("click", closeCadastrePreview);
@@ -5383,6 +5401,9 @@ function setCadastreOpacity(value) {
     if (lmeState.cadastre) {
         lmeState.cadastre.setOpacity(lmeState.cadastreOpacity);
     }
+    if (lmeState.cadastreZoning) {
+        lmeState.cadastreZoning.setOpacity(Math.max(0.8, lmeState.cadastreOpacity));
+    }
 }
 
 function toggleCadastreLayer(layer, enabled) {
@@ -5394,6 +5415,13 @@ function toggleCadastreLayer(layer, enabled) {
         lmeState.cadastreLayers = lmeState.cadastreLayers.filter(item => item !== layer);
     }
     refreshCadastreLayer();
+    if (layer === "CP.CadastralZoning") {
+        if (enabled) {
+            scheduleNavigationSheetRefresh(true);
+        } else {
+            clearNavigationSheetOutline();
+        }
+    }
     const layerNames = {
         "CP.CadastralParcel": "Confini particelle",
         codice_plla: "Numeri particelle",
@@ -5409,17 +5437,131 @@ function toggleCadastreLayer(layer, enabled) {
     setInfo(`${layerNames[layer] || layer}: ${enabled ? "attivo" : "nascosto"}.`);
 }
 
+function scheduleNavigationSheetRefresh(immediate = false) {
+    window.clearTimeout(lmeState.navigationSheetRefreshTimer);
+    if (!lmeState.map
+        || !lmeState.dotNetReference
+        || !lmeState.cadastreLayers.includes("CP.CadastralZoning")) {
+        return;
+    }
+    if (lmeState.map.getZoom() < 15) {
+        clearNavigationSheetOutline();
+        return;
+    }
+    lmeState.navigationSheetRefreshTimer = window.setTimeout(
+        () => void refreshNavigationSheetOutline(),
+        immediate ? 0 : 650);
+}
+
+async function refreshNavigationSheetOutline() {
+    if (!lmeState.map
+        || !lmeState.dotNetReference
+        || !lmeState.cadastreLayers.includes("CP.CadastralZoning")) {
+        return;
+    }
+
+    const center = lmeState.map.getCenter();
+    const point = [center.lng, center.lat];
+    if (loadedCadastralSheetAt(point)) {
+        clearNavigationSheetOutline();
+        return;
+    }
+    if (lmeState.navigationSheetFeature?.geometry
+        && geometryContainsPoint(lmeState.navigationSheetFeature.geometry, point)) {
+        lmeState.navigationSheetLabel?.setLatLng(center);
+        return;
+    }
+
+    const requestId = ++lmeState.navigationSheetRequestId;
+    try {
+        const xml = await lmeState.dotNetReference.invokeMethodAsync(
+            "GetOfficialCadastralSheetsNear",
+            center.lat,
+            center.lng);
+        if (requestId !== lmeState.navigationSheetRequestId
+            || !lmeState.cadastreLayers.includes("CP.CadastralZoning")) {
+            return;
+        }
+
+        const candidates = gmlParcelsToGeoJson(xml).features || [];
+        const sheet = findContainingPolygon(point, { type: "FeatureCollection", features: candidates })
+            || candidates[0];
+        if (!sheet) {
+            return;
+        }
+
+        const reference = String(sheet.properties?.NATIONALCADASTRALZONINGREFERENCE
+            || sheet.properties?.LABEL
+            || "").trim();
+        const previousReference = String(
+            lmeState.navigationSheetFeature?.properties?.NATIONALCADASTRALZONINGREFERENCE
+            || lmeState.navigationSheetFeature?.properties?.LABEL
+            || "").trim();
+        lmeState.navigationSheetFeature = sheet;
+        lmeState.navigationSheetLayer.clearLayers();
+        L.geoJSON(sheet, {
+            pane: "navigationSheetPane",
+            interactive: false,
+            style: {
+                color: "#f59e0b",
+                weight: 4,
+                opacity: 0.95,
+                dashArray: "10 6",
+                fillColor: "#fbbf24",
+                fillOpacity: 0.055
+            }
+        }).addTo(lmeState.navigationSheetLayer);
+        lmeState.navigationSheetLabel = L.marker(center, {
+            pane: "navigationSheetPane",
+            interactive: false,
+            icon: L.divIcon({
+                className: "cadastral-sheet-label",
+                html: escapeHtml(reference ? `Foglio ${reference}` : "Foglio catastale")
+            })
+        }).addTo(lmeState.navigationSheetLayer);
+        if (reference && reference !== previousReference) {
+            setInfo(`Confine del foglio catastale ${reference} caricato.`);
+        }
+    } catch {
+        if (requestId === lmeState.navigationSheetRequestId) {
+            setInfo("Confine del foglio catastale non disponibile dal servizio AdE. Riprovo al prossimo spostamento.");
+        }
+    }
+}
+
+function clearNavigationSheetOutline() {
+    window.clearTimeout(lmeState.navigationSheetRefreshTimer);
+    lmeState.navigationSheetRequestId++;
+    lmeState.navigationSheetFeature = null;
+    lmeState.navigationSheetLabel = null;
+    lmeState.navigationSheetLayer?.clearLayers();
+}
+
+function loadedCadastralSheetAt(point) {
+    const features = [
+        ...(lmeState.importedSheets?.toGeoJSON?.()?.features || []),
+        ...(lmeState.imported?.toGeoJSON?.()?.features || [])
+    ].filter(feature => ["Polygon", "MultiPolygon"].includes(feature?.geometry?.type)
+        && (feature.properties?._lmeOfficialSheet
+            || feature.properties?.NATIONALCADASTRALZONINGREFERENCE
+            || isSheetOrOverlayFeature(feature)));
+    return findContainingPolygon(point, { type: "FeatureCollection", features });
+}
+
 function refreshCadastreLayer() {
     if (lmeState.cadastre) {
         lmeState.map.removeLayer(lmeState.cadastre);
     }
-
+    if (lmeState.cadastreZoning) {
-    const layers = activeCadastreLayers();
+        lmeState.map.removeLayer(lmeState.cadastreZoning);
-    lmeState.cadastre = null;
-    if (!layers.length) {
-        return;
     }
 
+    const zoningEnabled = lmeState.cadastreLayers.includes("CP.CadastralZoning");
+    const layers = activeCadastreLayers().filter(layer => layer !== "CP.CadastralZoning");
+    lmeState.cadastre = null;
+    lmeState.cadastreZoning = null;
+
+    if (layers.length) {
         const cadastreLayer = L.tileLayer.wms(cadastreUrl(), {
             pane: "cadastrePane",
             layers: layers.join(","),
@@ -5431,21 +5573,53 @@ function refreshCadastreLayer() {
             opacity: lmeState.cadastreOpacity,
             attribution: "Agenzia delle Entrate - CC BY 4.0"
         });
+        attachCadastreTileRecovery(cadastreLayer);
+        lmeState.cadastre = cadastreLayer.addTo(lmeState.map);
+    }
 
+    if (zoningEnabled) {
+        const zoningLayer = L.tileLayer.wms(cadastreUrl(), {
+            pane: "cadastreZoningPane",
+            layers: "CP.CadastralZoning",
+            format: "image/png",
+            transparent: true,
+            version: "1.1.1",
+            crs: cadastreCrs,
+            minZoom: 8,
+            maxZoom: 14,
+            opacity: Math.max(0.8, lmeState.cadastreOpacity),
+            attribution: "Agenzia delle Entrate - CC BY 4.0"
+        });
+        attachCadastreTileRecovery(zoningLayer);
+        lmeState.cadastreZoning = zoningLayer.addTo(lmeState.map);
+        scheduleNavigationSheetRefresh(true);
+    }
+}
+
+function attachCadastreTileRecovery(cadastreLayer) {
     let errorShown = false;
-    cadastreLayer.on("tileerror", () => {
+    cadastreLayer.on("tileerror", event => {
+        const tile = event?.tile;
+        const retryCount = Number(tile?.dataset?.lmeRetry || 0);
+        if (tile && retryCount < 2) {
+            tile.dataset.lmeRetry = String(retryCount + 1);
+            window.setTimeout(() => {
+                const separator = tile.src.includes("?") ? "&" : "?";
+                tile.src = `${tile.src}${separator}_lme_retry=${Date.now()}`;
+            }, 450 * (retryCount + 1));
+            return;
+        }
+
         if (errorShown) {
             return;
         }
 
         errorShown = true;
-        setInfo("Layer catastali non caricati dal servizio AdE. Controlla la connessione e riprova.");
+        setInfo("Il servizio cartografico AdE non ha risposto. La connessione internet puo essere attiva: attendi qualche secondo e riprova.");
     });
     cadastreLayer.on("load", () => {
         errorShown = false;
     });
-
-    lmeState.cadastre = cadastreLayer.addTo(lmeState.map);
 }
 
 function activeCadastreLayers() {
@@ -5905,7 +6079,36 @@ function cadastreUrl() {
 }
 
 function setInfo(text) {
-    setText("mapInfo", text);
+    const container = document.getElementById("mapInfo");
+    if (!container) return;
+
+    setText("mapInfoText", text);
+    container.hidden = false;
+    if (lmeState.infoTimer) {
+        window.clearTimeout(lmeState.infoTimer);
+        lmeState.infoTimer = null;
+    }
+    if (lmeState.infoTimeoutSeconds > 0) {
+        lmeState.infoTimer = window.setTimeout(hideInfo, lmeState.infoTimeoutSeconds * 1000);
+    }
+}
+
+function hideInfo() {
+    const container = document.getElementById("mapInfo");
+    if (container) container.hidden = true;
+    if (lmeState.infoTimer) {
+        window.clearTimeout(lmeState.infoTimer);
+        lmeState.infoTimer = null;
+    }
+}
+
+function setInfoTimeout(seconds) {
+    const value = Number(seconds);
+    lmeState.infoTimeoutSeconds = Number.isFinite(value) ? Math.min(30, Math.max(0, value)) : 3;
+    const container = document.getElementById("mapInfo");
+    if (container && !container.hidden) {
+        setInfo(document.getElementById("mapInfoText")?.textContent || "");
+    }
 }
 
 function setText(id, text) {