0.4.12

模块化解耦

LanMountainDesktop/ComponentSystem/DesktopComponentRuntimeContext.cs

@@ -0,0 +1,8 @@
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.ComponentSystem;
+
+public sealed record DesktopComponentRuntimeContext(
+    string ComponentId,
+    string? PlacementId,
+    IComponentInstanceSettingsStore ComponentSettingsStore);

LanMountainDesktop/ComponentSystem/IComponentPlacementContextAware.cs

@@ -0,0 +1,6 @@
+namespace LanMountainDesktop.ComponentSystem;
+
+public interface IComponentPlacementContextAware
+{
+    void SetComponentPlacementContext(string componentId, string? placementId);
+}

LanMountainDesktop/ComponentSystem/IComponentRuntimeContextAware.cs

@@ -0,0 +1,6 @@
+namespace LanMountainDesktop.ComponentSystem;
+
+public interface IComponentRuntimeContextAware
+{
+    void SetComponentRuntimeContext(DesktopComponentRuntimeContext context);
+}

LanMountainDesktop/ComponentSystem/IComponentSettingsStoreAware.cs

@@ -0,0 +1,8 @@
+using LanMountainDesktop.Services;
+
+namespace LanMountainDesktop.ComponentSystem;
+
+public interface IComponentSettingsStoreAware
+{
+    void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore);
+}

LanMountainDesktop/Services/ComponentSettingsService.cs

@@ -2,12 +2,13 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Reflection;
 using System.Text.Json;
 using LanMountainDesktop.Models;
 
 namespace LanMountainDesktop.Services;
 
-public sealed class ComponentSettingsService
+public sealed class ComponentSettingsService : IComponentInstanceSettingsStore
 {
     private static readonly JsonSerializerOptions SerializerOptions = new()
     {
@@ -18,12 +19,14 @@ public sealed class ComponentSettingsService
     private static readonly TimeSpan CacheProbeInterval = TimeSpan.FromMilliseconds(400);
 
     private static string? _cachedPath;
-    private static ComponentSettingsSnapshot? _cachedSnapshot;
+    private static ComponentSettingsDocumentSnapshot? _cachedSnapshot;
     private static DateTime _cachedWriteTimeUtc = DateTime.MinValue;
     private static DateTime _lastProbeUtc = DateTime.MinValue;
 
     private readonly string _settingsPath;
     private readonly string _legacyAppSettingsPath;
+    private string _scopedComponentId = string.Empty;
+    private string _scopedPlacementId = string.Empty;
 
     public ComponentSettingsService()
     {
@@ -35,51 +38,17 @@ public sealed class ComponentSettingsService
 
     public ComponentSettingsSnapshot Load()
     {
+        if (HasScopedComponentContext())
+        {
+            return LoadForComponent(_scopedComponentId, _scopedPlacementId);
+        }
+
         try
         {
             lock (CacheGate)
             {
-                var nowUtc = DateTime.UtcNow;
+                var document = LoadDocumentLocked();
-                if (TryGetCachedWithoutProbe(nowUtc, out var cached))
+                return document.DefaultSettings.Clone();
-                {
-                    return cached;
-                }
-
-                var hasFile = File.Exists(_settingsPath);
-                var writeTimeUtc = hasFile
-                    ? File.GetLastWriteTimeUtc(_settingsPath)
-                    : DateTime.MinValue;
-
-                _lastProbeUtc = nowUtc;
-                if (TryGetCachedAfterProbe(writeTimeUtc, out cached))
-                {
-                    return cached;
-                }
-
-                ComponentSettingsSnapshot loadedSnapshot;
-                var loadedFromLegacy = false;
-                if (hasFile)
-                {
-                    loadedSnapshot = LoadSnapshotFromDisk();
-                }
-                else if (TryLoadLegacySnapshot(out var migratedSnapshot))
-                {
-                    loadedSnapshot = migratedSnapshot;
-                    loadedFromLegacy = true;
-                }
-                else
-                {
-                    loadedSnapshot = new ComponentSettingsSnapshot();
-                }
-
-                var normalizedSnapshot = NormalizeSnapshot(loadedSnapshot);
-                if (loadedFromLegacy)
-                {
-                    writeTimeUtc = PersistSnapshotToDisk(normalizedSnapshot);
-                }
-
-                UpdateCache(normalizedSnapshot, writeTimeUtc, nowUtc);
-                return normalizedSnapshot.Clone();
             }
         }
         catch
@@ -90,15 +59,21 @@ public sealed class ComponentSettingsService
 
     public void Save(ComponentSettingsSnapshot snapshot)
     {
+        if (HasScopedComponentContext())
+        {
+            SaveForComponent(_scopedComponentId, _scopedPlacementId, snapshot);
+            return;
+        }
+
         var snapshotToPersist = NormalizeSnapshot(snapshot);
 
         try
         {
-            var writeTimeUtc = PersistSnapshotToDisk(snapshotToPersist);
-
             lock (CacheGate)
             {
-                UpdateCache(snapshotToPersist, writeTimeUtc, DateTime.UtcNow);
+                var document = LoadDocumentLocked();
+                document.DefaultSettings = snapshotToPersist;
+                PersistDocumentLocked(document);
             }
         }
         catch
@@ -107,7 +82,201 @@ public sealed class ComponentSettingsService
         }
     }
 
-    private bool TryGetCachedWithoutProbe(DateTime nowUtc, out ComponentSettingsSnapshot snapshot)
+    public ComponentSettingsSnapshot LoadForComponent(string componentId, string? placementId)
+    {
+        try
+        {
+            lock (CacheGate)
+            {
+                var document = LoadDocumentLocked();
+                var instanceKey = BuildInstanceKey(componentId, placementId);
+                if (!string.IsNullOrWhiteSpace(instanceKey) &&
+                    document.InstanceSettings.TryGetValue(instanceKey, out var snapshot))
+                {
+                    return snapshot.Clone();
+                }
+
+                return document.DefaultSettings.Clone();
+            }
+        }
+        catch
+        {
+            return new ComponentSettingsSnapshot();
+        }
+    }
+
+    public void SaveForComponent(string componentId, string? placementId, ComponentSettingsSnapshot snapshot)
+    {
+        var normalizedSnapshot = NormalizeSnapshot(snapshot);
+        var instanceKey = BuildInstanceKey(componentId, placementId);
+        if (string.IsNullOrWhiteSpace(instanceKey))
+        {
+            Save(normalizedSnapshot);
+            return;
+        }
+
+        try
+        {
+            lock (CacheGate)
+            {
+                var document = LoadDocumentLocked();
+                document.InstanceSettings[instanceKey] = normalizedSnapshot;
+                PersistDocumentLocked(document);
+            }
+        }
+        catch
+        {
+            // Swallow persistence errors to keep UI interactions uninterrupted.
+        }
+    }
+
+    public void DeleteForComponent(string componentId, string? placementId)
+    {
+        var instanceKey = BuildInstanceKey(componentId, placementId);
+        if (string.IsNullOrWhiteSpace(instanceKey))
+        {
+            return;
+        }
+
+        try
+        {
+            lock (CacheGate)
+            {
+                var document = LoadDocumentLocked();
+                var changed = document.InstanceSettings.Remove(instanceKey);
+                changed |= document.PluginSettings.Remove(instanceKey);
+                if (changed)
+                {
+                    PersistDocumentLocked(document);
+                }
+            }
+        }
+        catch
+        {
+            // Swallow persistence errors to keep UI interactions uninterrupted.
+        }
+    }
+
+    public T LoadPluginSettings<T>(string componentId, string? placementId) where T : new()
+    {
+        try
+        {
+            lock (CacheGate)
+            {
+                var document = LoadDocumentLocked();
+                var instanceKey = BuildInstanceKey(componentId, placementId);
+                if (string.IsNullOrWhiteSpace(instanceKey) ||
+                    !document.PluginSettings.TryGetValue(instanceKey, out var settingsElement))
+                {
+                    return new T();
+                }
+
+                return JsonSerializer.Deserialize<T>(settingsElement.GetRawText(), SerializerOptions) ?? new T();
+            }
+        }
+        catch
+        {
+            return new T();
+        }
+    }
+
+    public void SavePluginSettings<T>(string componentId, string? placementId, T settings)
+    {
+        var instanceKey = BuildInstanceKey(componentId, placementId);
+        if (string.IsNullOrWhiteSpace(instanceKey))
+        {
+            return;
+        }
+
+        try
+        {
+            lock (CacheGate)
+            {
+                var document = LoadDocumentLocked();
+                document.PluginSettings[instanceKey] = JsonSerializer.SerializeToElement(settings, SerializerOptions).Clone();
+                PersistDocumentLocked(document);
+            }
+        }
+        catch
+        {
+            // Swallow persistence errors to keep UI interactions uninterrupted.
+        }
+    }
+
+    public void DeletePluginSettings(string componentId, string? placementId)
+    {
+        var instanceKey = BuildInstanceKey(componentId, placementId);
+        if (string.IsNullOrWhiteSpace(instanceKey))
+        {
+            return;
+        }
+
+        try
+        {
+            lock (CacheGate)
+            {
+                var document = LoadDocumentLocked();
+                if (document.PluginSettings.Remove(instanceKey))
+                {
+                    PersistDocumentLocked(document);
+                }
+            }
+        }
+        catch
+        {
+            // Swallow persistence errors to keep UI interactions uninterrupted.
+        }
+    }
+
+    public void SetScopedComponentContext(string componentId, string? placementId)
+    {
+        _scopedComponentId = componentId?.Trim() ?? string.Empty;
+        _scopedPlacementId = placementId?.Trim() ?? string.Empty;
+    }
+
+    public void ClearScopedComponentContext()
+    {
+        _scopedComponentId = string.Empty;
+        _scopedPlacementId = string.Empty;
+    }
+
+    public static void ApplyScopedContextToTarget(object? target, string componentId, string? placementId)
+    {
+        if (target is null)
+        {
+            return;
+        }
+
+        var flags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic;
+        foreach (var field in target.GetType().GetFields(flags))
+        {
+            if (field.FieldType != typeof(ComponentSettingsService))
+            {
+                continue;
+            }
+
+            if (field.GetValue(target) is ComponentSettingsService settingsService)
+            {
+                settingsService.SetScopedComponentContext(componentId, placementId);
+            }
+        }
+
+        foreach (var property in target.GetType().GetProperties(flags))
+        {
+            if (property.PropertyType != typeof(ComponentSettingsService) ||
+                !property.CanRead)
+            {
+                continue;
+            }
+
+            if (property.GetValue(target) is ComponentSettingsService settingsService)
+            {
+                settingsService.SetScopedComponentContext(componentId, placementId);
+            }
+        }
+    }
+
+    private bool TryGetCachedWithoutProbe(DateTime nowUtc, out ComponentSettingsDocumentSnapshot snapshot)
     {
         if (string.Equals(_cachedPath, _settingsPath, StringComparison.Ordinal) &&
             _cachedSnapshot is not null &&
@@ -121,7 +290,7 @@ public sealed class ComponentSettingsService
         return false;
     }
 
-    private bool TryGetCachedAfterProbe(DateTime writeTimeUtc, out ComponentSettingsSnapshot snapshot)
+    private bool TryGetCachedAfterProbe(DateTime writeTimeUtc, out ComponentSettingsDocumentSnapshot snapshot)
     {
         if (string.Equals(_cachedPath, _settingsPath, StringComparison.Ordinal) &&
             _cachedSnapshot is not null &&
@@ -135,17 +304,78 @@ public sealed class ComponentSettingsService
         return false;
     }
 
-    private ComponentSettingsSnapshot LoadSnapshotFromDisk()
+    private ComponentSettingsDocumentSnapshot LoadDocumentLocked()
+    {
+        var nowUtc = DateTime.UtcNow;
+        if (TryGetCachedWithoutProbe(nowUtc, out var cached))
+        {
+            return cached;
+        }
+
+        var hasFile = File.Exists(_settingsPath);
+        var writeTimeUtc = hasFile
+            ? File.GetLastWriteTimeUtc(_settingsPath)
+            : DateTime.MinValue;
+
+        _lastProbeUtc = nowUtc;
+        if (TryGetCachedAfterProbe(writeTimeUtc, out cached))
+        {
+            return cached;
+        }
+
+        ComponentSettingsDocumentSnapshot loadedSnapshot;
+        var loadedFromLegacy = false;
+        if (hasFile)
+        {
+            loadedSnapshot = LoadSnapshotFromDisk();
+        }
+        else if (TryLoadLegacySnapshot(out var migratedSnapshot))
+        {
+            loadedSnapshot = new ComponentSettingsDocumentSnapshot
+            {
+                DefaultSettings = NormalizeSnapshot(migratedSnapshot)
+            };
+            loadedFromLegacy = true;
+        }
+        else
+        {
+            loadedSnapshot = new ComponentSettingsDocumentSnapshot();
+        }
+
+        var normalizedSnapshot = NormalizeDocument(loadedSnapshot);
+        if (loadedFromLegacy)
+        {
+            writeTimeUtc = PersistSnapshotToDisk(normalizedSnapshot);
+        }
+
+        UpdateCache(normalizedSnapshot, writeTimeUtc, nowUtc);
+        return normalizedSnapshot.Clone();
+    }
+
+    private ComponentSettingsDocumentSnapshot LoadSnapshotFromDisk()
     {
         try
         {
             var json = File.ReadAllText(_settingsPath);
-            var snapshot = JsonSerializer.Deserialize<ComponentSettingsSnapshot>(json, SerializerOptions);
+            using var document = JsonDocument.Parse(json);
-            return NormalizeSnapshot(snapshot);
+            if (document.RootElement.ValueKind == JsonValueKind.Object &&
+                (document.RootElement.TryGetProperty("defaultSettings", out _) ||
+                 document.RootElement.TryGetProperty("instanceSettings", out _) ||
+                 document.RootElement.TryGetProperty("pluginSettings", out _)))
+            {
+                var snapshot = JsonSerializer.Deserialize<ComponentSettingsDocumentSnapshot>(json, SerializerOptions);
+                return NormalizeDocument(snapshot);
+            }
+
+            var legacySnapshot = JsonSerializer.Deserialize<ComponentSettingsSnapshot>(json, SerializerOptions);
+            return new ComponentSettingsDocumentSnapshot
+            {
+                DefaultSettings = NormalizeSnapshot(legacySnapshot)
+            };
         }
         catch
         {
-            return new ComponentSettingsSnapshot();
+            return new ComponentSettingsDocumentSnapshot();
         }
     }
 
@@ -204,7 +434,13 @@ public sealed class ComponentSettingsService
         }
     }
 
-    private DateTime PersistSnapshotToDisk(ComponentSettingsSnapshot snapshot)
+    private void PersistDocumentLocked(ComponentSettingsDocumentSnapshot snapshot)
+    {
+        var writeTimeUtc = PersistSnapshotToDisk(snapshot);
+        UpdateCache(snapshot, writeTimeUtc, DateTime.UtcNow);
+    }
+
+    private DateTime PersistSnapshotToDisk(ComponentSettingsDocumentSnapshot snapshot)
     {
         var directory = Path.GetDirectoryName(_settingsPath);
         if (!string.IsNullOrWhiteSpace(directory))
@@ -257,6 +493,40 @@ public sealed class ComponentSettingsService
         return normalized;
     }
 
+    private static ComponentSettingsDocumentSnapshot NormalizeDocument(ComponentSettingsDocumentSnapshot? snapshot)
+    {
+        var normalized = snapshot?.Clone() ?? new ComponentSettingsDocumentSnapshot();
+        normalized.DefaultSettings = NormalizeSnapshot(normalized.DefaultSettings);
+
+        var instanceSettings = new Dictionary<string, ComponentSettingsSnapshot>(StringComparer.OrdinalIgnoreCase);
+        foreach (var pair in normalized.InstanceSettings)
+        {
+            var key = NormalizeInstanceKey(pair.Key);
+            if (string.IsNullOrWhiteSpace(key))
+            {
+                continue;
+            }
+
+            instanceSettings[key] = NormalizeSnapshot(pair.Value);
+        }
+
+        var pluginSettings = new Dictionary<string, JsonElement>(StringComparer.OrdinalIgnoreCase);
+        foreach (var pair in normalized.PluginSettings)
+        {
+            var key = NormalizeInstanceKey(pair.Key);
+            if (string.IsNullOrWhiteSpace(key))
+            {
+                continue;
+            }
+
+            pluginSettings[key] = pair.Value.Clone();
+        }
+
+        normalized.InstanceSettings = instanceSettings;
+        normalized.PluginSettings = pluginSettings;
+        return normalized;
+    }
+
     private static List<ImportedClassScheduleSnapshot> NormalizeImportedSchedules(
         IReadOnlyList<ImportedClassScheduleSnapshot>? schedules)
     {
@@ -360,7 +630,30 @@ public sealed class ComponentSettingsService
         return RefreshIntervalCatalog.Normalize(minutes, 20);
     }
 
-    private void UpdateCache(ComponentSettingsSnapshot snapshot, DateTime writeTimeUtc, DateTime probeTimeUtc)
+    private static string BuildInstanceKey(string componentId, string? placementId)
+    {
+        var normalizedComponentId = componentId?.Trim() ?? string.Empty;
+        var normalizedPlacementId = placementId?.Trim() ?? string.Empty;
+        if (string.IsNullOrWhiteSpace(normalizedComponentId) || string.IsNullOrWhiteSpace(normalizedPlacementId))
+        {
+            return string.Empty;
+        }
+
+        return $"{normalizedComponentId}::{normalizedPlacementId}";
+    }
+
+    private static string NormalizeInstanceKey(string? key)
+    {
+        return key?.Trim() ?? string.Empty;
+    }
+
+    private bool HasScopedComponentContext()
+    {
+        return !string.IsNullOrWhiteSpace(_scopedComponentId) &&
+               !string.IsNullOrWhiteSpace(_scopedPlacementId);
+    }
+
+    private void UpdateCache(ComponentSettingsDocumentSnapshot snapshot, DateTime writeTimeUtc, DateTime probeTimeUtc)
     {
         _cachedPath = _settingsPath;
         _cachedSnapshot = snapshot.Clone();
@@ -368,6 +661,39 @@ public sealed class ComponentSettingsService
         _lastProbeUtc = probeTimeUtc;
     }
 
+    private sealed class ComponentSettingsDocumentSnapshot
+    {
+        public ComponentSettingsSnapshot DefaultSettings { get; set; } = new();
+
+        public Dictionary<string, ComponentSettingsSnapshot> InstanceSettings { get; set; } =
+            new(StringComparer.OrdinalIgnoreCase);
+
+        public Dictionary<string, JsonElement> PluginSettings { get; set; } =
+            new(StringComparer.OrdinalIgnoreCase);
+
+        public ComponentSettingsDocumentSnapshot Clone()
+        {
+            var clone = new ComponentSettingsDocumentSnapshot
+            {
+                DefaultSettings = DefaultSettings?.Clone() ?? new ComponentSettingsSnapshot(),
+                InstanceSettings = new Dictionary<string, ComponentSettingsSnapshot>(StringComparer.OrdinalIgnoreCase),
+                PluginSettings = new Dictionary<string, JsonElement>(StringComparer.OrdinalIgnoreCase)
+            };
+
+            foreach (var pair in InstanceSettings)
+            {
+                clone.InstanceSettings[pair.Key] = pair.Value?.Clone() ?? new ComponentSettingsSnapshot();
+            }
+
+            foreach (var pair in PluginSettings)
+            {
+                clone.PluginSettings[pair.Key] = pair.Value.Clone();
+            }
+
+            return clone;
+        }
+    }
+
     private sealed class LegacyComponentSettingsSnapshot
     {
         public string DailyArtworkMirrorSource { get; set; } = DailyArtworkMirrorSources.Overseas;

LanMountainDesktop/Services/IComponentInstanceSettingsStore.cs

@@ -0,0 +1,22 @@
+using LanMountainDesktop.Models;
+
+namespace LanMountainDesktop.Services;
+
+public interface IComponentInstanceSettingsStore
+{
+    ComponentSettingsSnapshot Load();
+
+    void Save(ComponentSettingsSnapshot snapshot);
+
+    ComponentSettingsSnapshot LoadForComponent(string componentId, string? placementId);
+
+    void SaveForComponent(string componentId, string? placementId, ComponentSettingsSnapshot snapshot);
+
+    void DeleteForComponent(string componentId, string? placementId);
+
+    T LoadPluginSettings<T>(string componentId, string? placementId) where T : new();
+
+    void SavePluginSettings<T>(string componentId, string? placementId, T settings);
+
+    void DeletePluginSettings(string componentId, string? placementId);
+}

LanMountainDesktop/Views/Components/AnalogClockWidget.axaml.cs

@@ -7,11 +7,12 @@ using Avalonia.Controls.Shapes;
 using Avalonia.Media;
 using Avalonia.Styling;
 using Avalonia.Threading;
+using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Services;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class AnalogClockWidget : UserControl, IDesktopComponentWidget, ITimeZoneAwareComponentWidget
+public partial class AnalogClockWidget : UserControl, IDesktopComponentWidget, ITimeZoneAwareComponentWidget, IComponentPlacementContextAware, IComponentSettingsStoreAware
 {
     private static readonly IReadOnlyDictionary<string, string> ZhCityNames =
         new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
@@ -54,9 +55,11 @@ public partial class AnalogClockWidget : UserControl, IDesktopComponentWidget, I
 
     private const double DialSize = 258;
     private const double Center = DialSize / 2;
+    private string _componentId = BuiltInComponentIds.DesktopClock;
+    private string _placementId = string.Empty;
 
     private readonly AppSettingsService _appSettingsService = new();
-    private readonly ComponentSettingsService _componentSettingsService = new();
+    private IComponentInstanceSettingsStore _componentSettingsStore = new ComponentSettingsService();
     private readonly LocalizationService _localizationService = new();
     private TimeZoneService? _timeZoneService;
     private double _currentCellSize = 48;
@@ -112,6 +115,21 @@ public partial class AnalogClockWidget : UserControl, IDesktopComponentWidget, I
         UpdateClock();
     }
 
+    public void SetComponentPlacementContext(string componentId, string? placementId)
+    {
+        _componentId = string.IsNullOrWhiteSpace(componentId)
+            ? BuiltInComponentIds.DesktopClock
+            : componentId.Trim();
+        _placementId = placementId?.Trim() ?? string.Empty;
+        RefreshFromSettings();
+    }
+
+    public void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore)
+    {
+        _componentSettingsStore = settingsStore ?? new ComponentSettingsService();
+        RefreshFromSettings();
+    }
+
     private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
     {
         InitializeDialIfNeeded();
@@ -359,7 +377,7 @@ public partial class AnalogClockWidget : UserControl, IDesktopComponentWidget, I
     private void LoadClockSettings()
     {
         var appSnapshot = _appSettingsService.Load();
-        var componentSnapshot = _componentSettingsService.Load();
+        var componentSnapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
         _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
 
         var configuredTimeZoneId = string.IsNullOrWhiteSpace(componentSnapshot.DesktopClockTimeZoneId)

LanMountainDesktop/Views/Components/AnalogClockWidgetSettingsWindow.axaml.cs

@@ -4,11 +4,12 @@ using System.Linq;
 using Avalonia.Controls;
 using Avalonia.Controls.Primitives;
 using Avalonia.Interactivity;
+using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Services;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class AnalogClockWidgetSettingsWindow : UserControl
+public partial class AnalogClockWidgetSettingsWindow : UserControl, IComponentPlacementContextAware, IComponentSettingsStoreAware
 {
     private static readonly IReadOnlyDictionary<string, string> ZhTimeZoneNames =
         new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
@@ -28,11 +29,13 @@ public partial class AnalogClockWidgetSettingsWindow : UserControl
         };
 
     private readonly AppSettingsService _appSettingsService = new();
-    private readonly ComponentSettingsService _componentSettingsService = new();
+    private IComponentInstanceSettingsStore _componentSettingsStore = new ComponentSettingsService();
     private readonly LocalizationService _localizationService = new();
     private readonly TimeZoneService _timeZoneService = new();
     private bool _suppressEvents;
     private string _languageCode = "zh-CN";
+    private string _componentId = BuiltInComponentIds.DesktopClock;
+    private string _placementId = string.Empty;
     private IReadOnlyList<TimeZoneInfo> _allTimeZones = Array.Empty<TimeZoneInfo>();
     private string _selectedTimeZoneId = string.Empty;
     private string _secondHandMode = ClockSecondHandMode.Tick;
@@ -47,10 +50,29 @@ public partial class AnalogClockWidgetSettingsWindow : UserControl
         PopulateTimeZoneComboBox();
     }
 
+    public void SetComponentPlacementContext(string componentId, string? placementId)
+    {
+        _componentId = string.IsNullOrWhiteSpace(componentId)
+            ? BuiltInComponentIds.DesktopClock
+            : componentId.Trim();
+        _placementId = placementId?.Trim() ?? string.Empty;
+        LoadState();
+        ApplyLocalization();
+        PopulateTimeZoneComboBox();
+    }
+
+    public void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore)
+    {
+        _componentSettingsStore = settingsStore ?? new ComponentSettingsService();
+        LoadState();
+        ApplyLocalization();
+        PopulateTimeZoneComboBox();
+    }
+
     private void LoadState()
     {
         var appSnapshot = _appSettingsService.Load();
-        var componentSnapshot = _componentSettingsService.Load();
+        var componentSnapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
         _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
         _selectedTimeZoneId = string.IsNullOrWhiteSpace(componentSnapshot.DesktopClockTimeZoneId)
             ? "China Standard Time"
@@ -149,10 +171,10 @@ public partial class AnalogClockWidgetSettingsWindow : UserControl
         _selectedTimeZoneId = normalizedId;
         _secondHandMode = GetSelectedSecondHandMode();
 
-        var snapshot = _componentSettingsService.Load();
+        var snapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
         snapshot.DesktopClockTimeZoneId = normalizedId;
         snapshot.DesktopClockSecondHandMode = _secondHandMode;
-        _componentSettingsService.Save(snapshot);
+        _componentSettingsStore.SaveForComponent(_componentId, _placementId, snapshot);
 
         SettingsChanged?.Invoke(this, EventArgs.Empty);
     }

LanMountainDesktop/Views/Components/ClassScheduleSettingsWindow.axaml.cs

@@ -10,19 +10,22 @@ using Avalonia.Interactivity;
 using Avalonia.Layout;
 using Avalonia.Media;
 using Avalonia.Platform.Storage;
+using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.Services;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class ClassScheduleSettingsWindow : UserControl
+public partial class ClassScheduleSettingsWindow : UserControl, IComponentPlacementContextAware, IComponentSettingsStoreAware
 {
     private readonly AppSettingsService _appSettingsService = new();
-    private readonly ComponentSettingsService _componentSettingsService = new();
+    private IComponentInstanceSettingsStore _componentSettingsStore = new ComponentSettingsService();
     private readonly LocalizationService _localizationService = new();
     private readonly List<ImportedClassScheduleSnapshot> _importedSchedules = [];
     private string _activeScheduleId = string.Empty;
     private string _languageCode = "zh-CN";
+    private string _componentId = BuiltInComponentIds.DesktopClassSchedule;
+    private string _placementId = string.Empty;
 
     public event EventHandler? SettingsChanged;
 
@@ -34,10 +37,29 @@ public partial class ClassScheduleSettingsWindow : UserControl
         RenderImportedSchedules();
     }
 
+    public void SetComponentPlacementContext(string componentId, string? placementId)
+    {
+        _componentId = string.IsNullOrWhiteSpace(componentId)
+            ? BuiltInComponentIds.DesktopClassSchedule
+            : componentId.Trim();
+        _placementId = placementId?.Trim() ?? string.Empty;
+        LoadState();
+        ApplyLocalization();
+        RenderImportedSchedules();
+    }
+
+    public void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore)
+    {
+        _componentSettingsStore = settingsStore ?? new ComponentSettingsService();
+        LoadState();
+        ApplyLocalization();
+        RenderImportedSchedules();
+    }
+
     private void LoadState()
     {
         var appSnapshot = _appSettingsService.Load();
-        var componentSnapshot = _componentSettingsService.Load();
+        var componentSnapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
         _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
 
         _importedSchedules.Clear();
@@ -299,7 +321,7 @@ public partial class ClassScheduleSettingsWindow : UserControl
 
     private void SaveState()
     {
-        var snapshot = _componentSettingsService.Load();
+        var snapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
         snapshot.ImportedClassSchedules = _importedSchedules
             .Select(item => new ImportedClassScheduleSnapshot
             {
@@ -309,7 +331,7 @@ public partial class ClassScheduleSettingsWindow : UserControl
             })
             .ToList();
         snapshot.ActiveImportedClassScheduleId = _activeScheduleId ?? string.Empty;
-        _componentSettingsService.Save(snapshot);
+        _componentSettingsStore.SaveForComponent(_componentId, _placementId, snapshot);
         SettingsChanged?.Invoke(this, EventArgs.Empty);
     }
 

LanMountainDesktop/Views/Components/ClassScheduleWidget.axaml.cs

@@ -7,12 +7,13 @@ using Avalonia.Controls;
 using Avalonia.Media;
 using Avalonia.Styling;
 using Avalonia.Threading;
+using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.Services;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class ClassScheduleWidget : UserControl, IDesktopComponentWidget, ITimeZoneAwareComponentWidget
+public partial class ClassScheduleWidget : UserControl, IDesktopComponentWidget, ITimeZoneAwareComponentWidget, IComponentPlacementContextAware, IComponentSettingsStoreAware
 {
     private sealed record CourseItemViewModel(
         string Name,
@@ -26,7 +27,7 @@ public partial class ClassScheduleWidget : UserControl, IDesktopComponentWidget,
     };
 
     private readonly AppSettingsService _appSettingsService = new();
-    private readonly ComponentSettingsService _componentSettingsService = new();
+    private IComponentInstanceSettingsStore _componentSettingsStore = new ComponentSettingsService();
     private readonly LocalizationService _localizationService = new();
     private readonly IClassIslandScheduleDataService _scheduleService = new ClassIslandScheduleDataService();
 
@@ -35,6 +36,8 @@ public partial class ClassScheduleWidget : UserControl, IDesktopComponentWidget,
     private IReadOnlyList<CourseItemViewModel> _courseItems = Array.Empty<CourseItemViewModel>();
     private bool _isNightVisual = true;
     private string _languageCode = "zh-CN";
+    private string _componentId = BuiltInComponentIds.DesktopClassSchedule;
+    private string _placementId = string.Empty;
 
     public ClassScheduleWidget()
     {
@@ -113,10 +116,25 @@ public partial class ClassScheduleWidget : UserControl, IDesktopComponentWidget,
         RefreshSchedule();
     }
 
+    public void SetComponentPlacementContext(string componentId, string? placementId)
+    {
+        _componentId = string.IsNullOrWhiteSpace(componentId)
+            ? BuiltInComponentIds.DesktopClassSchedule
+            : componentId.Trim();
+        _placementId = placementId?.Trim() ?? string.Empty;
+        RefreshSchedule();
+    }
+
+    public void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore)
+    {
+        _componentSettingsStore = settingsStore ?? new ComponentSettingsService();
+        RefreshSchedule();
+    }
+
     private void RefreshSchedule()
     {
         var appSettings = _appSettingsService.Load();
-        var componentSettings = _componentSettingsService.Load();
+        var componentSettings = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
         _languageCode = _localizationService.NormalizeLanguageCode(appSettings.LanguageCode);
         var now = _timeZoneService?.GetCurrentTime() ?? DateTime.Now;
         UpdateHeader(now);

LanMountainDesktop/Views/Components/DailyArtworkSettingsWindow.axaml.cs

@@ -2,18 +2,21 @@ using System;
 using Avalonia.Controls;
 using Avalonia.Controls.Primitives;
 using Avalonia.Interactivity;
+using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.Services;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class DailyArtworkSettingsWindow : UserControl
+public partial class DailyArtworkSettingsWindow : UserControl, IComponentPlacementContextAware, IComponentSettingsStoreAware
 {
     private readonly AppSettingsService _appSettingsService = new();
-    private readonly ComponentSettingsService _componentSettingsService = new();
+    private IComponentInstanceSettingsStore _componentSettingsStore = new ComponentSettingsService();
     private readonly LocalizationService _localizationService = new();
     private string _languageCode = "zh-CN";
     private bool _suppressEvents;
+    private string _componentId = BuiltInComponentIds.DesktopDailyArtwork;
+    private string _placementId = string.Empty;
 
     public event EventHandler? SettingsChanged;
 
@@ -24,10 +27,27 @@ public partial class DailyArtworkSettingsWindow : UserControl
         ApplyLocalization();
     }
 
+    public void SetComponentPlacementContext(string componentId, string? placementId)
+    {
+        _componentId = string.IsNullOrWhiteSpace(componentId)
+            ? BuiltInComponentIds.DesktopDailyArtwork
+            : componentId.Trim();
+        _placementId = placementId?.Trim() ?? string.Empty;
+        LoadState();
+        ApplyLocalization();
+    }
+
+    public void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore)
+    {
+        _componentSettingsStore = settingsStore ?? new ComponentSettingsService();
+        LoadState();
+        ApplyLocalization();
+    }
+
     private void LoadState()
     {
         var appSnapshot = _appSettingsService.Load();
-        var componentSnapshot = _componentSettingsService.Load();
+        var componentSnapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
         _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
 
         var source = DailyArtworkMirrorSources.Normalize(componentSnapshot.DailyArtworkMirrorSource);
@@ -59,9 +79,9 @@ public partial class DailyArtworkSettingsWindow : UserControl
         }
 
         var source = GetSelectedSource();
-        var snapshot = _componentSettingsService.Load();
+        var snapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
         snapshot.DailyArtworkMirrorSource = source;
-        _componentSettingsService.Save(snapshot);
+        _componentSettingsStore.SaveForComponent(_componentId, _placementId, snapshot);
 
         UpdateSourceStatus(source);
         SettingsChanged?.Invoke(this, EventArgs.Empty);

LanMountainDesktop/Views/Components/DailyArtworkWidget.axaml.cs

@@ -13,12 +13,13 @@ using Avalonia.Input;
 using Avalonia.Media;
 using Avalonia.Media.Imaging;
 using Avalonia.Threading;
+using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.Services;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget, IRecommendationInfoAwareComponentWidget
+public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget, IRecommendationInfoAwareComponentWidget, IComponentPlacementContextAware, IComponentSettingsStoreAware
 {
     private static readonly IReadOnlyDictionary<DayOfWeek, string> ZhWeekdays =
         new Dictionary<DayOfWeek, string>
@@ -58,6 +59,7 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
     };
 
     private readonly AppSettingsService _settingsService = new();
+    private IComponentInstanceSettingsStore _componentSettingsStore = new ComponentSettingsService();
     private readonly LocalizationService _localizationService = new();
 
     private IRecommendationInfoService _recommendationService = DefaultRecommendationService;
@@ -67,6 +69,8 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
     private double _currentCellSize = BaseCellSize;
     private bool _isAttached;
     private bool _isRefreshing;
+    private string _componentId = BuiltInComponentIds.DesktopDailyArtwork;
+    private string _placementId = string.Empty;
     private string? _currentArtworkSourceUrl;
     private string? _currentArtworkImageUrl;
 
@@ -136,6 +140,21 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
         }
     }
 
+    public void SetComponentPlacementContext(string componentId, string? placementId)
+    {
+        _componentId = string.IsNullOrWhiteSpace(componentId)
+            ? BuiltInComponentIds.DesktopDailyArtwork
+            : componentId.Trim();
+        _placementId = placementId?.Trim() ?? string.Empty;
+        RefreshFromSettings();
+    }
+
+    public void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore)
+    {
+        _componentSettingsStore = settingsStore ?? new ComponentSettingsService();
+        RefreshFromSettings();
+    }
+
     private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
     {
         _isAttached = true;
@@ -203,6 +222,7 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
         {
             var query = new DailyArtworkQuery(
                 Locale: _languageCode,
+                MirrorSource: ResolveMirrorSource(),
                 ForceRefresh: forceRefresh);
             var result = await _recommendationService.GetDailyArtworkAsync(query, cts.Token);
             if (!_isAttached || cts.IsCancellationRequested)
@@ -640,6 +660,19 @@ public partial class DailyArtworkWidget : UserControl, IDesktopComponentWidget,
         }
     }
 
+    private string ResolveMirrorSource()
+    {
+        try
+        {
+            var snapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
+            return DailyArtworkMirrorSources.Normalize(snapshot.DailyArtworkMirrorSource);
+        }
+        catch
+        {
+            return DailyArtworkMirrorSources.Overseas;
+        }
+    }
+
     private void UpdateDateLabels()
     {
         var now = DateTime.Now;

LanMountainDesktop/Views/Components/DesktopComponentRuntimeRegistry.cs

@@ -42,9 +42,33 @@ public sealed class DesktopComponentRuntimeDescriptor
         TimeZoneService timeZoneService,
         IWeatherInfoService weatherInfoService,
         IRecommendationInfoService recommendationInfoService,
-        ICalculatorDataService calculatorDataService)
+        ICalculatorDataService calculatorDataService,
+        IComponentInstanceSettingsStore componentSettingsStore,
+        string? placementId = null)
     {
         var control = _controlFactory();
+        var runtimeContext = new DesktopComponentRuntimeContext(
+            Definition.Id,
+            placementId,
+            componentSettingsStore);
+
+        if (control is IComponentRuntimeContextAware runtimeContextAwareComponent)
+        {
+            runtimeContextAwareComponent.SetComponentRuntimeContext(runtimeContext);
+        }
+
+        if (control is IComponentPlacementContextAware placementAwareComponent)
+        {
+            placementAwareComponent.SetComponentPlacementContext(Definition.Id, placementId);
+        }
+
+        if (control is IComponentSettingsStoreAware settingsStoreAwareComponent)
+        {
+            settingsStoreAwareComponent.SetComponentSettingsStore(componentSettingsStore);
+        }
+
+        ComponentSettingsService.ApplyScopedContextToTarget(control, Definition.Id, placementId);
+
         if (control is IDesktopComponentWidget sizedComponent)
         {
             sizedComponent.ApplyCellSize(cellSize);

LanMountainDesktop/Views/Components/ExtendedWeatherWidget.axaml.cs

@@ -9,13 +9,14 @@ using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Media;
 using Avalonia.Threading;
+using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.Services;
 using LanMountainDesktop.Theme;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget
+public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget, IComponentPlacementContextAware, IComponentSettingsStoreAware
 {
     private static readonly IWeatherInfoService DefaultWeatherInfoService = new XiaomiWeatherService();
     private static readonly IReadOnlyList<int> SupportedAutoRefreshIntervalsMinutes = RefreshIntervalCatalog.SupportedIntervalsMinutes;
@@ -25,7 +26,7 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
     private readonly ScaleTransform _backgroundMotionScaleTransform = new(1, 1);
     private readonly TranslateTransform _backgroundMotionTranslateTransform = new();
     private readonly AppSettingsService _settingsService = new();
-    private readonly ComponentSettingsService _componentSettingsService = new();
+    private IComponentInstanceSettingsStore _componentSettingsStore = new ComponentSettingsService();
     private readonly LocalizationService _localizationService = new();
 
     private IWeatherInfoService _weatherInfoService = DefaultWeatherInfoService;
@@ -39,6 +40,8 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
     private bool _autoRefreshEnabled = true;
     private string _languageCode = "zh-CN";
     private HyperOS3WeatherVisualKind _activeVisualKind = HyperOS3WeatherVisualKind.ClearDay;
+    private string _componentId = BuiltInComponentIds.DesktopExtendedWeather;
+    private string _placementId = string.Empty;
     private readonly TextBlock[] _hourlyTempBlocks;
     private readonly TextBlock[] _hourlyTimeBlocks;
     private readonly Image[] _hourlyIconBlocks;
@@ -173,6 +176,21 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
         }
     }
 
+    public void SetComponentPlacementContext(string componentId, string? placementId)
+    {
+        _componentId = string.IsNullOrWhiteSpace(componentId)
+            ? BuiltInComponentIds.DesktopExtendedWeather
+            : componentId.Trim();
+        _placementId = placementId?.Trim() ?? string.Empty;
+        RefreshFromSettings();
+    }
+
+    public void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore)
+    {
+        _componentSettingsStore = settingsStore ?? new ComponentSettingsService();
+        RefreshFromSettings();
+    }
+
     public void SetDesktopPageContext(bool isOnActivePage, bool isEditMode)
     {
         _ = isEditMode;
@@ -935,7 +953,7 @@ public partial class ExtendedWeatherWidget : UserControl, IDesktopComponentWidge
 
         try
         {
-            var snapshot = _componentSettingsService.Load();
+            var snapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
             enabled = snapshot.WeatherAutoRefreshEnabled;
             intervalMinutes = NormalizeAutoRefreshIntervalMinutes(snapshot.WeatherAutoRefreshIntervalMinutes);
         }

LanMountainDesktop/Views/Components/HourlyWeatherWidget.axaml.cs

@@ -11,13 +11,14 @@ using Avalonia.Media;
 using Avalonia.Media.Imaging;
 using Avalonia.Platform;
 using Avalonia.Threading;
+using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.Services;
 using LanMountainDesktop.Theme;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget
+public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget, IComponentPlacementContextAware, IComponentSettingsStoreAware
 {
     private enum WeatherVisualKind
     {
@@ -95,7 +96,7 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
     };
 
     private readonly AppSettingsService _settingsService = new();
-    private readonly ComponentSettingsService _componentSettingsService = new();
+    private IComponentInstanceSettingsStore _componentSettingsStore = new ComponentSettingsService();
     private readonly LocalizationService _localizationService = new();
     private readonly Dictionary<WeatherVisualKind, IBrush> _backgroundBrushCache = new();
     private readonly Dictionary<HyperOS3WeatherVisualKind, IBrush> _particleBrushCache = new();
@@ -118,6 +119,8 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
     private bool _isOnActivePage = true;
     private bool _isRefreshing;
     private bool _autoRefreshEnabled = true;
+    private string _componentId = BuiltInComponentIds.DesktopHourlyWeather;
+    private string _placementId = string.Empty;
     private readonly TextBlock[] _hourlyTimeBlocks;
     private readonly Image[] _hourlyIconBlocks;
     private readonly TextBlock[] _hourlyTempBlocks;
@@ -224,6 +227,21 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
         }
     }
 
+    public void SetComponentPlacementContext(string componentId, string? placementId)
+    {
+        _componentId = string.IsNullOrWhiteSpace(componentId)
+            ? BuiltInComponentIds.DesktopHourlyWeather
+            : componentId.Trim();
+        _placementId = placementId?.Trim() ?? string.Empty;
+        RefreshFromSettings();
+    }
+
+    public void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore)
+    {
+        _componentSettingsStore = settingsStore ?? new ComponentSettingsService();
+        RefreshFromSettings();
+    }
+
     public void SetDesktopPageContext(bool isOnActivePage, bool isEditMode)
     {
         _ = isEditMode;
@@ -1424,7 +1442,7 @@ public partial class HourlyWeatherWidget : UserControl, IDesktopComponentWidget,
 
         try
         {
-            var snapshot = _componentSettingsService.Load();
+            var snapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
             enabled = snapshot.WeatherAutoRefreshEnabled;
             intervalMinutes = NormalizeAutoRefreshIntervalMinutes(snapshot.WeatherAutoRefreshIntervalMinutes);
         }

LanMountainDesktop/Views/Components/MultiDayWeatherWidget.axaml.cs

@@ -9,13 +9,14 @@ using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Media;
 using Avalonia.Threading;
+using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.Services;
 using LanMountainDesktop.Theme;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget
+public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget, IComponentPlacementContextAware, IComponentSettingsStoreAware
 {
     private enum WeatherVisualKind
     {
@@ -93,7 +94,7 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
     };
 
     private readonly AppSettingsService _settingsService = new();
-    private readonly ComponentSettingsService _componentSettingsService = new();
+    private IComponentInstanceSettingsStore _componentSettingsStore = new ComponentSettingsService();
     private readonly LocalizationService _localizationService = new();
     private readonly Dictionary<WeatherVisualKind, IBrush> _backgroundBrushCache = new();
     private readonly Dictionary<HyperOS3WeatherVisualKind, IBrush> _particleBrushCache = new();
@@ -116,6 +117,8 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
     private bool _isOnActivePage = true;
     private bool _isRefreshing;
     private bool _autoRefreshEnabled = true;
+    private string _componentId = BuiltInComponentIds.DesktopMultiDayWeather;
+    private string _placementId = string.Empty;
     private readonly TextBlock[] _hourlyTimeBlocks;
     private readonly Image[] _hourlyIconBlocks;
     private readonly TextBlock[] _hourlyTempBlocks;
@@ -222,6 +225,21 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
         }
     }
 
+    public void SetComponentPlacementContext(string componentId, string? placementId)
+    {
+        _componentId = string.IsNullOrWhiteSpace(componentId)
+            ? BuiltInComponentIds.DesktopMultiDayWeather
+            : componentId.Trim();
+        _placementId = placementId?.Trim() ?? string.Empty;
+        RefreshFromSettings();
+    }
+
+    public void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore)
+    {
+        _componentSettingsStore = settingsStore ?? new ComponentSettingsService();
+        RefreshFromSettings();
+    }
+
     public void SetDesktopPageContext(bool isOnActivePage, bool isEditMode)
     {
         _ = isEditMode;
@@ -1274,7 +1292,7 @@ public partial class MultiDayWeatherWidget : UserControl, IDesktopComponentWidge
 
         try
         {
-            var snapshot = _componentSettingsService.Load();
+            var snapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
             enabled = snapshot.WeatherAutoRefreshEnabled;
             intervalMinutes = NormalizeAutoRefreshIntervalMinutes(snapshot.WeatherAutoRefreshIntervalMinutes);
         }

LanMountainDesktop/Views/Components/WeatherClockWidget.axaml.cs

@@ -10,12 +10,13 @@ using Avalonia.Controls.Shapes;
 using Avalonia.Media;
 using Avalonia.Styling;
 using Avalonia.Threading;
+using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.Services;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class WeatherClockWidget : UserControl, IDesktopComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget
+public partial class WeatherClockWidget : UserControl, IDesktopComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget, IComponentPlacementContextAware, IComponentSettingsStoreAware
 {
     private sealed record WeatherClockConfig(
         string LanguageCode,
@@ -41,7 +42,7 @@ public partial class WeatherClockWidget : UserControl, IDesktopComponentWidget,
     };
 
     private readonly AppSettingsService _settingsService = new();
-    private readonly ComponentSettingsService _componentSettingsService = new();
+    private IComponentInstanceSettingsStore _componentSettingsStore = new ComponentSettingsService();
     private readonly LocalizationService _localizationService = new();
     private readonly Line _hourHandLine = CreateHandLine("#232938", 4.0);
     private readonly Line _minuteHandLine = CreateHandLine("#2F3749", 2.8);
@@ -59,6 +60,8 @@ public partial class WeatherClockWidget : UserControl, IDesktopComponentWidget,
     private bool? _isNightModeApplied;
     private string _languageCode = "zh-CN";
     private HyperOS3WeatherVisualKind _activeVisualKind = HyperOS3WeatherVisualKind.CloudyDay;
+    private string _componentId = BuiltInComponentIds.DesktopWeatherClock;
+    private string _placementId = string.Empty;
 
     public WeatherClockWidget()
     {
@@ -116,6 +119,21 @@ public partial class WeatherClockWidget : UserControl, IDesktopComponentWidget,
         }
     }
 
+    public void SetComponentPlacementContext(string componentId, string? placementId)
+    {
+        _componentId = string.IsNullOrWhiteSpace(componentId)
+            ? BuiltInComponentIds.DesktopWeatherClock
+            : componentId.Trim();
+        _placementId = placementId?.Trim() ?? string.Empty;
+        RefreshFromSettings();
+    }
+
+    public void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore)
+    {
+        _componentSettingsStore = settingsStore ?? new ComponentSettingsService();
+        RefreshFromSettings();
+    }
+
     public void ApplyCellSize(double cellSize)
     {
         _currentCellSize = Math.Max(1, cellSize);
@@ -659,7 +677,7 @@ public partial class WeatherClockWidget : UserControl, IDesktopComponentWidget,
 
         try
         {
-            var snapshot = _componentSettingsService.Load();
+            var snapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
             enabled = snapshot.WeatherAutoRefreshEnabled;
             intervalMinutes = NormalizeAutoRefreshIntervalMinutes(snapshot.WeatherAutoRefreshIntervalMinutes);
         }

LanMountainDesktop/Views/Components/WeatherWidget.axaml.cs

@@ -11,13 +11,14 @@ using Avalonia.Media;
 using Avalonia.Media.Imaging;
 using Avalonia.Platform;
 using Avalonia.Threading;
+using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.Services;
 using LanMountainDesktop.Theme;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class WeatherWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget
+public partial class WeatherWidget : UserControl, IDesktopComponentWidget, IDesktopPageVisibilityAwareComponentWidget, ITimeZoneAwareComponentWidget, IWeatherInfoAwareComponentWidget, IComponentPlacementContextAware, IComponentSettingsStoreAware
 {
     private enum WeatherVisualKind
     {
@@ -89,7 +90,7 @@ public partial class WeatherWidget : UserControl, IDesktopComponentWidget, IDesk
     };
 
     private readonly AppSettingsService _settingsService = new();
-    private readonly ComponentSettingsService _componentSettingsService = new();
+    private IComponentInstanceSettingsStore _componentSettingsStore = new ComponentSettingsService();
     private readonly LocalizationService _localizationService = new();
     private readonly Dictionary<WeatherVisualKind, IBrush> _backgroundBrushCache = new();
     private readonly Dictionary<HyperOS3WeatherVisualKind, IBrush> _particleBrushCache = new();
@@ -112,6 +113,8 @@ public partial class WeatherWidget : UserControl, IDesktopComponentWidget, IDesk
     private bool _isOnActivePage = true;
     private bool _isRefreshing;
     private bool _autoRefreshEnabled = true;
+    private string _componentId = BuiltInComponentIds.DesktopWeather;
+    private string _placementId = string.Empty;
 
     public WeatherWidget()
     {
@@ -167,6 +170,21 @@ public partial class WeatherWidget : UserControl, IDesktopComponentWidget, IDesk
         }
     }
 
+    public void SetComponentPlacementContext(string componentId, string? placementId)
+    {
+        _componentId = string.IsNullOrWhiteSpace(componentId)
+            ? BuiltInComponentIds.DesktopWeather
+            : componentId.Trim();
+        _placementId = placementId?.Trim() ?? string.Empty;
+        RefreshFromSettings();
+    }
+
+    public void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore)
+    {
+        _componentSettingsStore = settingsStore ?? new ComponentSettingsService();
+        RefreshFromSettings();
+    }
+
     public void SetDesktopPageContext(bool isOnActivePage, bool isEditMode)
     {
         _ = isEditMode;
@@ -1063,7 +1081,7 @@ public partial class WeatherWidget : UserControl, IDesktopComponentWidget, IDesk
 
         try
         {
-            var snapshot = _componentSettingsService.Load();
+            var snapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
             enabled = snapshot.WeatherAutoRefreshEnabled;
             intervalMinutes = NormalizeAutoRefreshIntervalMinutes(snapshot.WeatherAutoRefreshIntervalMinutes);
         }

LanMountainDesktop/Views/Components/WeatherWidgetSettingsWindow.axaml.cs

@@ -4,20 +4,23 @@ using System.Linq;
 using Avalonia.Controls;
 using Avalonia.Controls.Primitives;
 using Avalonia.Interactivity;
+using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.Services;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class WeatherWidgetSettingsWindow : UserControl
+public partial class WeatherWidgetSettingsWindow : UserControl, IComponentPlacementContextAware, IComponentSettingsStoreAware
 {
     private static readonly IReadOnlyList<int> SupportedIntervals = RefreshIntervalCatalog.SupportedIntervalsMinutes;
 
     private readonly AppSettingsService _appSettingsService = new();
-    private readonly ComponentSettingsService _componentSettingsService = new();
+    private IComponentInstanceSettingsStore _componentSettingsStore = new ComponentSettingsService();
     private readonly LocalizationService _localizationService = new();
     private bool _suppressEvents;
     private string _languageCode = "zh-CN";
+    private string _componentId = BuiltInComponentIds.DesktopWeather;
+    private string _placementId = string.Empty;
 
     public event EventHandler? SettingsChanged;
 
@@ -29,10 +32,27 @@ public partial class WeatherWidgetSettingsWindow : UserControl
         ApplyLocalization();
     }
 
+    public void SetComponentPlacementContext(string componentId, string? placementId)
+    {
+        _componentId = string.IsNullOrWhiteSpace(componentId)
+            ? BuiltInComponentIds.DesktopWeather
+            : componentId.Trim();
+        _placementId = placementId?.Trim() ?? string.Empty;
+        LoadState();
+        ApplyLocalization();
+    }
+
+    public void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore)
+    {
+        _componentSettingsStore = settingsStore ?? new ComponentSettingsService();
+        LoadState();
+        ApplyLocalization();
+    }
+
     private void LoadState()
     {
         var appSnapshot = _appSettingsService.Load();
-        var componentSnapshot = _componentSettingsService.Load();
+        var componentSnapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
         _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
 
         var enabled = componentSnapshot.WeatherAutoRefreshEnabled;
@@ -83,10 +103,10 @@ public partial class WeatherWidgetSettingsWindow : UserControl
 
     private void SaveState()
     {
-        var snapshot = _componentSettingsService.Load();
+        var snapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
         snapshot.WeatherAutoRefreshEnabled = AutoRefreshCheckBox.IsChecked == true;
         snapshot.WeatherAutoRefreshIntervalMinutes = GetSelectedInterval();
-        _componentSettingsService.Save(snapshot);
+        _componentSettingsStore.SaveForComponent(_componentId, _placementId, snapshot);
         SettingsChanged?.Invoke(this, EventArgs.Empty);
     }
 

LanMountainDesktop/Views/Components/WorldClockWidget.axaml.cs

@@ -8,11 +8,12 @@ using Avalonia.Layout;
 using Avalonia.Media;
 using Avalonia.Styling;
 using Avalonia.Threading;
+using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Services;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class WorldClockWidget : UserControl, IDesktopComponentWidget, ITimeZoneAwareComponentWidget
+public partial class WorldClockWidget : UserControl, IDesktopComponentWidget, ITimeZoneAwareComponentWidget, IComponentPlacementContextAware, IComponentSettingsStoreAware
 {
     private const int BaseWidthCells = 4;
     private const int BaseHeightCells = 2;
@@ -92,7 +93,7 @@ public partial class WorldClockWidget : UserControl, IDesktopComponentWidget, IT
     };
 
     private readonly AppSettingsService _appSettingsService = new();
-    private readonly ComponentSettingsService _componentSettingsService = new();
+    private IComponentInstanceSettingsStore _componentSettingsStore = new ComponentSettingsService();
     private readonly LocalizationService _localizationService = new();
     private readonly ClockEntryVisual[] _entryVisuals = new ClockEntryVisual[WorldClockTimeZoneCatalog.ClockCount];
     private readonly TimeZoneInfo[] _entryTimeZones = new TimeZoneInfo[WorldClockTimeZoneCatalog.ClockCount];
@@ -103,6 +104,8 @@ public partial class WorldClockWidget : UserControl, IDesktopComponentWidget, IT
     private DateTime _nextLanguageProbeUtc = DateTime.MinValue;
     private string _secondHandMode = ClockSecondHandMode.Tick;
     private bool _isNightVisual = true;
+    private string _componentId = BuiltInComponentIds.DesktopWorldClock;
+    private string _placementId = string.Empty;
 
     public WorldClockWidget()
     {
@@ -147,6 +150,21 @@ public partial class WorldClockWidget : UserControl, IDesktopComponentWidget, IT
         UpdateClockVisuals();
     }
 
+    public void SetComponentPlacementContext(string componentId, string? placementId)
+    {
+        _componentId = string.IsNullOrWhiteSpace(componentId)
+            ? BuiltInComponentIds.DesktopWorldClock
+            : componentId.Trim();
+        _placementId = placementId?.Trim() ?? string.Empty;
+        RefreshFromSettings();
+    }
+
+    public void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore)
+    {
+        _componentSettingsStore = settingsStore ?? new ComponentSettingsService();
+        RefreshFromSettings();
+    }
+
     public void ApplyCellSize(double cellSize)
     {
         _currentCellSize = Math.Max(1, cellSize);
@@ -525,7 +543,7 @@ public partial class WorldClockWidget : UserControl, IDesktopComponentWidget, IT
     private void LoadFromSettings()
     {
         var appSnapshot = _appSettingsService.Load();
-        var componentSnapshot = _componentSettingsService.Load();
+        var componentSnapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
         _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
 
         var ids = WorldClockTimeZoneCatalog.NormalizeTimeZoneIds(componentSnapshot.WorldClockTimeZoneIds);

LanMountainDesktop/Views/Components/WorldClockWidgetSettingsWindow.axaml.cs

@@ -4,11 +4,12 @@ using System.Linq;
 using Avalonia.Controls;
 using Avalonia.Controls.Primitives;
 using Avalonia.Interactivity;
+using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Services;
 
 namespace LanMountainDesktop.Views.Components;
 
-public partial class WorldClockWidgetSettingsWindow : UserControl
+public partial class WorldClockWidgetSettingsWindow : UserControl, IComponentPlacementContextAware, IComponentSettingsStoreAware
 {
     private static readonly IReadOnlyDictionary<string, string> ZhTimeZoneNames =
         new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
@@ -28,12 +29,14 @@ public partial class WorldClockWidgetSettingsWindow : UserControl
         };
 
     private readonly AppSettingsService _appSettingsService = new();
-    private readonly ComponentSettingsService _componentSettingsService = new();
+    private IComponentInstanceSettingsStore _componentSettingsStore = new ComponentSettingsService();
     private readonly LocalizationService _localizationService = new();
     private readonly TimeZoneService _timeZoneService = new();
     private readonly ComboBox[] _timeZoneComboBoxes;
     private bool _suppressEvents;
     private string _languageCode = "zh-CN";
+    private string _componentId = BuiltInComponentIds.DesktopWorldClock;
+    private string _placementId = string.Empty;
     private IReadOnlyList<TimeZoneInfo> _allTimeZones = Array.Empty<TimeZoneInfo>();
     private IReadOnlyList<string> _selectedTimeZoneIds = Array.Empty<string>();
     private string _secondHandMode = ClockSecondHandMode.Tick;
@@ -57,10 +60,29 @@ public partial class WorldClockWidgetSettingsWindow : UserControl
         PopulateTimeZoneComboBoxes();
     }
 
+    public void SetComponentPlacementContext(string componentId, string? placementId)
+    {
+        _componentId = string.IsNullOrWhiteSpace(componentId)
+            ? BuiltInComponentIds.DesktopWorldClock
+            : componentId.Trim();
+        _placementId = placementId?.Trim() ?? string.Empty;
+        LoadState();
+        ApplyLocalization();
+        PopulateTimeZoneComboBoxes();
+    }
+
+    public void SetComponentSettingsStore(IComponentInstanceSettingsStore settingsStore)
+    {
+        _componentSettingsStore = settingsStore ?? new ComponentSettingsService();
+        LoadState();
+        ApplyLocalization();
+        PopulateTimeZoneComboBoxes();
+    }
+
     private void LoadState()
     {
         var appSnapshot = _appSettingsService.Load();
-        var componentSnapshot = _componentSettingsService.Load();
+        var componentSnapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
         _languageCode = _localizationService.NormalizeLanguageCode(appSnapshot.LanguageCode);
 
         _allTimeZones = _timeZoneService
@@ -167,10 +189,10 @@ public partial class WorldClockWidgetSettingsWindow : UserControl
         var normalizedIds = WorldClockTimeZoneCatalog.NormalizeTimeZoneIds(selectedIds, _allTimeZones);
         _secondHandMode = GetSelectedSecondHandMode();
 
-        var snapshot = _componentSettingsService.Load();
+        var snapshot = _componentSettingsStore.LoadForComponent(_componentId, _placementId);
         snapshot.WorldClockTimeZoneIds = normalizedIds.ToList();
         snapshot.WorldClockSecondHandMode = _secondHandMode;
-        _componentSettingsService.Save(snapshot);
+        _componentSettingsStore.SaveForComponent(_componentId, _placementId, snapshot);
 
         _selectedTimeZoneIds = normalizedIds;
         SettingsChanged?.Invoke(this, EventArgs.Empty);

LanMountainDesktop/Views/MainWindow.ComponentSystem.cs

@@ -14,6 +14,7 @@ using FluentIcons.Avalonia;
 using FluentIcons.Common;
 using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.Models;
+using LanMountainDesktop.Services;
 using LanMountainDesktop.Theme;
 using LanMountainDesktop.Views.Components;
 
@@ -689,6 +690,7 @@ public partial class MainWindow
         }
 
         _desktopComponentPlacements.Remove(placement);
+        _componentSettingsService.DeleteForComponent(placement.ComponentId, placement.PlacementId);
 
         ClearDesktopComponentSelection();
 
@@ -724,80 +726,80 @@ public partial class MainWindow
 
         if (placement.ComponentId == BuiltInComponentIds.Date)
         {
-            OpenDateComponentSettings();
+            OpenDateComponentSettings(placement);
             return;
         }
 
         if (placement.ComponentId == BuiltInComponentIds.DesktopClock)
         {
-            OpenDesktopClockComponentSettings();
+            OpenDesktopClockComponentSettings(placement);
             return;
         }
 
         if (placement.ComponentId == BuiltInComponentIds.DesktopClassSchedule)
         {
-            OpenClassScheduleComponentSettings();
+            OpenClassScheduleComponentSettings(placement);
             return;
         }
 
         if (placement.ComponentId == BuiltInComponentIds.DesktopWorldClock)
         {
-            OpenWorldClockComponentSettings();
+            OpenWorldClockComponentSettings(placement);
             return;
         }
 
         if (IsWeatherComponentId(placement.ComponentId))
         {
-            OpenWeatherComponentSettings();
+            OpenWeatherComponentSettings(placement);
             return;
         }
 
         if (placement.ComponentId == BuiltInComponentIds.DesktopDailyArtwork)
         {
-            OpenDailyArtworkComponentSettings();
+            OpenDailyArtworkComponentSettings(placement);
             return;
         }
 
         if (placement.ComponentId == BuiltInComponentIds.DesktopCnrDailyNews)
         {
-            OpenCnrDailyNewsComponentSettings();
+            OpenCnrDailyNewsComponentSettings(placement);
             return;
         }
 
         if (placement.ComponentId == BuiltInComponentIds.DesktopIfengNews)
         {
-            OpenIfengNewsComponentSettings();
+            OpenIfengNewsComponentSettings(placement);
             return;
         }
 
         if (placement.ComponentId == BuiltInComponentIds.DesktopDailyWord ||
             placement.ComponentId == BuiltInComponentIds.DesktopDailyWord2x2)
         {
-            OpenDailyWordComponentSettings();
+            OpenDailyWordComponentSettings(placement);
             return;
         }
 
         if (placement.ComponentId == BuiltInComponentIds.DesktopBilibiliHotSearch)
         {
-            OpenBilibiliHotSearchComponentSettings();
+            OpenBilibiliHotSearchComponentSettings(placement);
             return;
         }
 
         if (placement.ComponentId == BuiltInComponentIds.DesktopBaiduHotSearch)
         {
-            OpenBaiduHotSearchComponentSettings();
+            OpenBaiduHotSearchComponentSettings(placement);
             return;
         }
 
         if (placement.ComponentId == BuiltInComponentIds.DesktopStcn24Forum)
         {
-            OpenStcn24ForumComponentSettings();
+            OpenStcn24ForumComponentSettings(placement);
             return;
         }
 
         if (placement.ComponentId == BuiltInComponentIds.DesktopStudyEnvironment)
         {
-            OpenStudyEnvironmentComponentSettings();
+            OpenStudyEnvironmentComponentSettings(placement);
             return;
         }
     }
@@ -811,212 +813,129 @@ public partial class MainWindow
                string.Equals(componentId, BuiltInComponentIds.DesktopExtendedWeather, StringComparison.OrdinalIgnoreCase);
     }
 
-    private void OpenDateComponentSettings()
+    private void ShowComponentSettings(Control settingsContent, DesktopComponentPlacementSnapshot placement)
     {
         if (ComponentSettingsWindow is null || ComponentSettingsContentHost is null)
         {
             return;
         }
 
-        var settingsContent = new DateWidgetSettingsWindow();
+        var runtimeContext = new DesktopComponentRuntimeContext(
+            placement.ComponentId,
+            placement.PlacementId,
+            _componentSettingsService);
+
+        if (settingsContent is IComponentRuntimeContextAware runtimeContextAwareComponent)
+        {
+            runtimeContextAwareComponent.SetComponentRuntimeContext(runtimeContext);
+        }
+
+        if (settingsContent is IComponentPlacementContextAware placementAwareComponent)
+        {
+            placementAwareComponent.SetComponentPlacementContext(placement.ComponentId, placement.PlacementId);
+        }
+
+        if (settingsContent is IComponentSettingsStoreAware settingsStoreAwareComponent)
+        {
+            settingsStoreAwareComponent.SetComponentSettingsStore(_componentSettingsService);
+        }
+
+        ComponentSettingsService.ApplyScopedContextToTarget(settingsContent, placement.ComponentId, placement.PlacementId);
+
         ComponentSettingsContentHost.Content = settingsContent;
-        
         ComponentSettingsWindow.IsVisible = true;
         ComponentSettingsWindow.Opacity = 0;
-        
         ComponentSettingsWindow.Opacity = 1;
     }
 
-    private void OpenClassScheduleComponentSettings()
+    private void OpenDateComponentSettings(DesktopComponentPlacementSnapshot placement)
     {
-        if (ComponentSettingsWindow is null || ComponentSettingsContentHost is null)
+        var settingsContent = new DateWidgetSettingsWindow();
-        {
+        ShowComponentSettings(settingsContent, placement);
-            return;
+    }
-        }
 
+    private void OpenClassScheduleComponentSettings(DesktopComponentPlacementSnapshot placement)
+    {
         var settingsContent = new ClassScheduleSettingsWindow();
         settingsContent.SettingsChanged += OnClassScheduleSettingsChanged;
-        ComponentSettingsContentHost.Content = settingsContent;
+        ShowComponentSettings(settingsContent, placement);
-
-        ComponentSettingsWindow.IsVisible = true;
-        ComponentSettingsWindow.Opacity = 0;
-        ComponentSettingsWindow.Opacity = 1;
     }
 
-    private void OpenDesktopClockComponentSettings()
+    private void OpenDesktopClockComponentSettings(DesktopComponentPlacementSnapshot placement)
     {
-        if (ComponentSettingsWindow is null || ComponentSettingsContentHost is null)
-        {
-            return;
-        }
-
         var settingsContent = new AnalogClockWidgetSettingsWindow();
         settingsContent.SettingsChanged += OnDesktopClockSettingsChanged;
-        ComponentSettingsContentHost.Content = settingsContent;
+        ShowComponentSettings(settingsContent, placement);
-
-        ComponentSettingsWindow.IsVisible = true;
-        ComponentSettingsWindow.Opacity = 0;
-        ComponentSettingsWindow.Opacity = 1;
     }
 
-    private void OpenWorldClockComponentSettings()
+    private void OpenWorldClockComponentSettings(DesktopComponentPlacementSnapshot placement)
     {
-        if (ComponentSettingsWindow is null || ComponentSettingsContentHost is null)
-        {
-            return;
-        }
-
         var settingsContent = new WorldClockWidgetSettingsWindow();
         settingsContent.SettingsChanged += OnWorldClockSettingsChanged;
-        ComponentSettingsContentHost.Content = settingsContent;
+        ShowComponentSettings(settingsContent, placement);
-
-        ComponentSettingsWindow.IsVisible = true;
-        ComponentSettingsWindow.Opacity = 0;
-        ComponentSettingsWindow.Opacity = 1;
     }
 
-    private void OpenWeatherComponentSettings()
+    private void OpenWeatherComponentSettings(DesktopComponentPlacementSnapshot placement)
     {
-        if (ComponentSettingsWindow is null || ComponentSettingsContentHost is null)
-        {
-            return;
-        }
-
         var settingsContent = new WeatherWidgetSettingsWindow();
         settingsContent.SettingsChanged += OnWeatherSettingsChanged;
-        ComponentSettingsContentHost.Content = settingsContent;
+        ShowComponentSettings(settingsContent, placement);
-
-        ComponentSettingsWindow.IsVisible = true;
-        ComponentSettingsWindow.Opacity = 0;
-        ComponentSettingsWindow.Opacity = 1;
     }
 
-    private void OpenStudyEnvironmentComponentSettings()
+    private void OpenStudyEnvironmentComponentSettings(DesktopComponentPlacementSnapshot placement)
     {
-        if (ComponentSettingsWindow is null || ComponentSettingsContentHost is null)
-        {
-            return;
-        }
-
         var settingsContent = new StudyEnvironmentWidgetSettingsWindow();
         settingsContent.SettingsChanged += OnStudyEnvironmentSettingsChanged;
-        ComponentSettingsContentHost.Content = settingsContent;
+        ShowComponentSettings(settingsContent, placement);
-
-        ComponentSettingsWindow.IsVisible = true;
-        ComponentSettingsWindow.Opacity = 0;
-        ComponentSettingsWindow.Opacity = 1;
     }
 
-    private void OpenDailyArtworkComponentSettings()
+    private void OpenDailyArtworkComponentSettings(DesktopComponentPlacementSnapshot placement)
     {
-        if (ComponentSettingsWindow is null || ComponentSettingsContentHost is null)
-        {
-            return;
-        }
-
         var settingsContent = new DailyArtworkSettingsWindow();
         settingsContent.SettingsChanged += OnDailyArtworkSettingsChanged;
-        ComponentSettingsContentHost.Content = settingsContent;
+        ShowComponentSettings(settingsContent, placement);
-
-        ComponentSettingsWindow.IsVisible = true;
-        ComponentSettingsWindow.Opacity = 0;
-        ComponentSettingsWindow.Opacity = 1;
     }
 
-    private void OpenCnrDailyNewsComponentSettings()
+    private void OpenCnrDailyNewsComponentSettings(DesktopComponentPlacementSnapshot placement)
     {
-        if (ComponentSettingsWindow is null || ComponentSettingsContentHost is null)
-        {
-            return;
-        }
-
         var settingsContent = new CnrDailyNewsSettingsWindow();
         settingsContent.SettingsChanged += OnCnrDailyNewsSettingsChanged;
-        ComponentSettingsContentHost.Content = settingsContent;
+        ShowComponentSettings(settingsContent, placement);
-
-        ComponentSettingsWindow.IsVisible = true;
-        ComponentSettingsWindow.Opacity = 0;
-        ComponentSettingsWindow.Opacity = 1;
     }
 
-    private void OpenIfengNewsComponentSettings()
+    private void OpenIfengNewsComponentSettings(DesktopComponentPlacementSnapshot placement)
     {
-        if (ComponentSettingsWindow is null || ComponentSettingsContentHost is null)
-        {
-            return;
-        }
-
         var settingsContent = new IfengNewsSettingsWindow();
         settingsContent.SettingsChanged += OnIfengNewsSettingsChanged;
-        ComponentSettingsContentHost.Content = settingsContent;
+        ShowComponentSettings(settingsContent, placement);
-
-        ComponentSettingsWindow.IsVisible = true;
-        ComponentSettingsWindow.Opacity = 0;
-        ComponentSettingsWindow.Opacity = 1;
     }
 
-    private void OpenDailyWordComponentSettings()
+    private void OpenDailyWordComponentSettings(DesktopComponentPlacementSnapshot placement)
     {
-        if (ComponentSettingsWindow is null || ComponentSettingsContentHost is null)
-        {
-            return;
-        }
-
         var settingsContent = new DailyWordSettingsWindow();
         settingsContent.SettingsChanged += OnDailyWordSettingsChanged;
-        ComponentSettingsContentHost.Content = settingsContent;
+        ShowComponentSettings(settingsContent, placement);
-
-        ComponentSettingsWindow.IsVisible = true;
-        ComponentSettingsWindow.Opacity = 0;
-        ComponentSettingsWindow.Opacity = 1;
     }
 
-    private void OpenBilibiliHotSearchComponentSettings()
+    private void OpenBilibiliHotSearchComponentSettings(DesktopComponentPlacementSnapshot placement)
     {
-        if (ComponentSettingsWindow is null || ComponentSettingsContentHost is null)
-        {
-            return;
-        }
-
         var settingsContent = new BilibiliHotSearchSettingsWindow();
         settingsContent.SettingsChanged += OnBilibiliHotSearchSettingsChanged;
-        ComponentSettingsContentHost.Content = settingsContent;
+        ShowComponentSettings(settingsContent, placement);
-
-        ComponentSettingsWindow.IsVisible = true;
-        ComponentSettingsWindow.Opacity = 0;
-        ComponentSettingsWindow.Opacity = 1;
     }
 
-    private void OpenBaiduHotSearchComponentSettings()
+    private void OpenBaiduHotSearchComponentSettings(DesktopComponentPlacementSnapshot placement)
     {
-        if (ComponentSettingsWindow is null || ComponentSettingsContentHost is null)
-        {
-            return;
-        }
-
         var settingsContent = new BaiduHotSearchSettingsWindow();
         settingsContent.SettingsChanged += OnBaiduHotSearchSettingsChanged;
-        ComponentSettingsContentHost.Content = settingsContent;
+        ShowComponentSettings(settingsContent, placement);
-
-        ComponentSettingsWindow.IsVisible = true;
-        ComponentSettingsWindow.Opacity = 0;
-        ComponentSettingsWindow.Opacity = 1;
     }
 
-    private void OpenStcn24ForumComponentSettings()
+    private void OpenStcn24ForumComponentSettings(DesktopComponentPlacementSnapshot placement)
     {
-        if (ComponentSettingsWindow is null || ComponentSettingsContentHost is null)
-        {
-            return;
-        }
-
         var settingsContent = new Stcn24ForumSettingsWindow();
         settingsContent.SettingsChanged += OnStcn24ForumSettingsChanged;
-        ComponentSettingsContentHost.Content = settingsContent;
+        ShowComponentSettings(settingsContent, placement);
-
-        ComponentSettingsWindow.IsVisible = true;
-        ComponentSettingsWindow.Opacity = 0;
-        ComponentSettingsWindow.Opacity = 1;
     }
 
     private void OnClassScheduleSettingsChanged(object? sender, EventArgs e)
@@ -1408,6 +1327,7 @@ public partial class MainWindow
         foreach (var placement in placementsToRemove)
         {
             _desktopComponentPlacements.Remove(placement);
+            _componentSettingsService.DeleteForComponent(placement.ComponentId, placement.PlacementId);
         }
 
         _desktopPageCount = Math.Clamp(_desktopPageCount - 1, MinDesktopPageCount, MaxDesktopPageCount);
@@ -1601,7 +1521,7 @@ public partial class MainWindow
             placement.PlacementId = Guid.NewGuid().ToString("N");
         }
 
-        var component = CreateDesktopComponentControl(placement.ComponentId);
+        var component = CreateDesktopComponentControl(placement.ComponentId, placement.PlacementId);
         if (component is null)
         {
             return null;
@@ -2035,7 +1955,7 @@ public partial class MainWindow
         return onLeft || onRight || onTop || onBottom;
     }
 
-    private Control? CreateDesktopComponentControl(string componentId)
+    private Control? CreateDesktopComponentControl(string componentId, string? placementId = null)
     {
         if (!_componentRuntimeRegistry.TryGetDescriptor(componentId, out var runtimeDescriptor))
         {
@@ -2047,7 +1967,9 @@ public partial class MainWindow
             _timeZoneService,
             _weatherDataService,
             _recommendationInfoService,
-            _calculatorDataService);
+            _calculatorDataService,
+            _componentSettingsService,
+            placementId);
         component.Classes.Add(DesktopComponentClass);
         return component;
     }
@@ -3195,7 +3117,8 @@ public partial class MainWindow
                 _timeZoneService,
                 _weatherDataService,
                 _recommendationInfoService,
-                _calculatorDataService);
+                _calculatorDataService,
+                _componentSettingsService);
             // Component library previews must stay non-interactive so drag gesture is reliable.
             previewControl.IsHitTestVisible = false;
             previewControl.Focusable = false;

README.md

@@ -38,8 +38,9 @@
 
 ## 当前状态
 - 项目包含桌面端与推荐后端两个子项目，并在同一 solution 中维护。
-- 配置默认写入本地：`%LOCALAPPDATA%\LanMountainDesktop\settings.json`。
+- 通用应用配置默认写入本地：`%LOCALAPPDATA%\LanMountainDesktop\settings.json`。
-- 启动台与桌面布局现已拆分到独立文件：`%LOCALAPPDATA%\LanMountainDesktop\launcher-settings.json`、`%LOCALAPPDATA%\LanMountainDesktop\desktop-layout-settings.json`。
+- 启动台与桌面布局已拆分到独立文件：`%LOCALAPPDATA%\LanMountainDesktop\launcher-settings.json`、`%LOCALAPPDATA%\LanMountainDesktop\desktop-layout-settings.json`。
+- 组件配置统一写入：`%LOCALAPPDATA%\LanMountainDesktop\component-settings.json`；同类组件按实例 `componentId::placementId` 隔离存储，同时预留插件专属配置区。
 - 当前体验以 Windows 为主要目标平台。
 
 ## 运行说明