chore: release v2.4

- Add theme system (Dark/Light palettes, ModernTheme, ThemeManager) - Add InputDialog, Spinner common view - Add DuplicatesCsvExportService - Refresh views, dialogs, and view models across tabs - Update localization strings (en/fr) - Tweak services (transfer, permissions, search, user access, ownership elevation, bulk operations) Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-20 11:23:11 +02:00
parent 8f30a60d2a
commit f4cc81bb71
64 changed files with 3315 additions and 405 deletions
@@ -0,0 +1,135 @@
+using System.Windows;
+using Microsoft.Win32;
+using Microsoft.Extensions.Logging;
+
+namespace SharepointToolbox.Services;
+
+public enum ThemeMode { System, Light, Dark }
+
+/// <summary>
+/// Swaps the merged palette dictionary at runtime so all DynamicResource brush lookups retint live.
+/// "System" mode reads HKCU AppsUseLightTheme (0 = dark, 1 = light) and subscribes to system theme changes.
+/// </summary>
+public class ThemeManager
+{
+    private const string LightPaletteSource = "pack://application:,,,/Themes/LightPalette.xaml";
+    private const string DarkPaletteSource  = "pack://application:,,,/Themes/DarkPalette.xaml";
+    private const string PersonalizeKey = @"Software\Microsoft\Windows\CurrentVersion\Themes\Personalize";
+
+    private readonly ILogger<ThemeManager> _logger;
+    private ThemeMode _mode = ThemeMode.System;
+    private bool _systemSubscribed;
+
+    public event EventHandler? ThemeChanged;
+
+    public ThemeMode Mode => _mode;
+    public bool IsDarkActive { get; private set; }
+
+    public ThemeManager(ILogger<ThemeManager> logger)
+    {
+        _logger = logger;
+    }
+
+    public void ApplyMode(ThemeMode mode)
+    {
+        _mode = mode;
+        bool dark = ResolveDark(mode);
+        ApplyPalette(dark);
+        EnsureSystemSubscription(mode);
+    }
+
+    public void ApplyFromString(string? value)
+    {
+        var mode = (value ?? "System") switch
+        {
+            "Light" => ThemeMode.Light,
+            "Dark"  => ThemeMode.Dark,
+            _        => ThemeMode.System,
+        };
+        ApplyMode(mode);
+    }
+
+    private bool ResolveDark(ThemeMode mode) => mode switch
+    {
+        ThemeMode.Light => false,
+        ThemeMode.Dark  => true,
+        _               => ReadSystemPrefersDark(),
+    };
+
+    private bool ReadSystemPrefersDark()
+    {
+        try
+        {
+            using var key = Registry.CurrentUser.OpenSubKey(PersonalizeKey);
+            if (key?.GetValue("AppsUseLightTheme") is int v)
+                return v == 0;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogWarning(ex, "Failed to read system theme preference, defaulting to light");
+        }
+        return false;
+    }
+
+    private void ApplyPalette(bool dark)
+    {
+        var app = Application.Current;
+        if (app is null) return;
+
+        var newPalette = new ResourceDictionary
+        {
+            Source = new Uri(dark ? DarkPaletteSource : LightPaletteSource, UriKind.Absolute)
+        };
+
+        var dicts = app.Resources.MergedDictionaries;
+        int replaced = -1;
+        for (int i = 0; i < dicts.Count; i++)
+        {
+            var src = dicts[i].Source?.OriginalString ?? string.Empty;
+            if (src.EndsWith("LightPalette.xaml", StringComparison.OrdinalIgnoreCase) ||
+                src.EndsWith("DarkPalette.xaml",  StringComparison.OrdinalIgnoreCase))
+            {
+                replaced = i;
+                break;
+            }
+        }
+
+        if (replaced >= 0)
+            dicts[replaced] = newPalette;
+        else
+            dicts.Insert(0, newPalette);
+
+        IsDarkActive = dark;
+        ThemeChanged?.Invoke(this, EventArgs.Empty);
+    }
+
+    private void EnsureSystemSubscription(ThemeMode mode)
+    {
+        if (mode == ThemeMode.System && !_systemSubscribed)
+        {
+            SystemEvents.UserPreferenceChanged += OnUserPreferenceChanged;
+            _systemSubscribed = true;
+        }
+        else if (mode != ThemeMode.System && _systemSubscribed)
+        {
+            SystemEvents.UserPreferenceChanged -= OnUserPreferenceChanged;
+            _systemSubscribed = false;
+        }
+    }
+
+    private void OnUserPreferenceChanged(object? sender, UserPreferenceChangedEventArgs e)
+    {
+        if (e.Category != UserPreferenceCategory.General) return;
+        if (_mode != ThemeMode.System) return;
+
+        var app = Application.Current;
+        if (app is null) return;
+
+        app.Dispatcher.BeginInvoke(new Action(() =>
+        {
+            bool dark = ReadSystemPrefersDark();
+            if (dark != IsDarkActive)
+                ApplyPalette(dark);
+        }));
+    }
+}