replace v6 with experimental v7 code

src/MpvNet.Windows/UI/Theme.cs

@@ -0,0 +1,141 @@
+
+using System.Windows;
+using System.Windows.Media;
+
+using Microsoft.Win32;
+
+namespace MpvNet.Windows.UI;
+
+public class Theme
+{
+    public string? Name { get; set; }
+    public Dictionary<string, string> Dictionary { get; } = new Dictionary<string, string>();
+
+    public static List<Theme>? DefaultThemes { get; set; }
+    public static List<Theme>? CustomThemes { get; set; }
+
+    public static Theme? Current { get; set; }
+
+    public Brush? Background { get; set; }
+    public Brush? Foreground { get; set; }
+    public Brush? Foreground2 { get; set; }
+    public Brush? Heading { get; set; }
+    public Brush? MenuBackground { get; set; }
+    public Brush? MenuHighlight { get; set; }
+
+    public Brush GetBrush(string key)
+    {
+        return new SolidColorBrush((Color)ColorConverter.ConvertFromString(Dictionary[key]));
+    }
+
+    public Color GetColor(string key) => (Color)ColorConverter.ConvertFromString(Dictionary[key]);
+
+    public static void Init()
+    {
+        string? themeContent = null;
+
+        if (File.Exists(Player.ConfigFolder + "theme.conf"))
+            themeContent = File.ReadAllText(Player.ConfigFolder + "theme.conf");
+
+        Init(themeContent, Properties.Resources.theme, DarkMode ? App.DarkTheme : App.LightTheme);
+    }
+
+    public static void Init(string? customContent, string defaultContent, string activeTheme)
+    {
+        Current = null;
+
+        DefaultThemes = Load(defaultContent);
+        CustomThemes = Load(customContent);
+
+        foreach (Theme theme in CustomThemes)
+        {
+            if (theme.Name == activeTheme)
+            {
+                bool isKeyMissing = false;
+
+                foreach (string key in DefaultThemes[0].Dictionary.Keys)
+                {
+                    if (!theme.Dictionary.ContainsKey(key))
+                    {
+                        isKeyMissing = true;
+                        Terminal.WriteError($"Theme '{activeTheme}' misses '{key}'");
+                        break;
+                    }
+                }
+
+                if (!isKeyMissing)
+                    Current = theme;
+
+                break;
+            }
+        }
+
+        if (Current == null)
+            foreach (Theme theme in DefaultThemes)
+                if (theme.Name == activeTheme)
+                    Current = theme;
+
+        if (Current == null)
+            Current = DefaultThemes[0];
+
+        Current.Background = Current.GetBrush("background");
+        Current.Foreground = Current.GetBrush("foreground");
+        Current.Foreground2 = Current.GetBrush("foreground2");
+        Current.Heading = Current.GetBrush("heading");
+        Current.MenuBackground = Current.GetBrush("menu-background");
+        Current.MenuHighlight = Current.GetBrush("menu-highlight");
+    }
+
+    static List<Theme> Load(string? content)
+    {
+        List<Theme> list = new List<Theme>();
+        Theme? theme = null;
+
+        foreach (string currentLine in (content ?? "").Split(new[] { '\r', '\n' }))
+        {
+            string line = currentLine.Trim();
+
+            if (line.StartsWith("[") && line.EndsWith("]"))
+                list.Add(theme = new Theme() { Name = line.Substring(1, line.Length - 2).Trim() });
+
+            if (line.Contains('=') && theme != null)
+            {
+                string left = line[..line.IndexOf("=")].Trim();
+                theme.Dictionary[left] = line[(line.IndexOf("=") + 1)..].Trim();
+            }
+        }
+
+        return list;
+    }
+
+    public static void UpdateWpfColors()
+    {
+        var dic = Application.Current.Resources;
+
+        dic.Remove("BorderColor");
+        dic.Add("BorderColor", Current!.GetColor("menu-highlight"));
+
+        dic.Remove("RegionColor");
+        dic.Add("RegionColor", Current.GetColor("menu-background"));
+
+        dic.Remove("SecondaryRegionColor");
+        dic.Add("SecondaryRegionColor", Current.GetColor("menu-highlight"));
+
+        dic.Remove("PrimaryTextColor");
+        dic.Add("PrimaryTextColor", Current.GetColor("menu-foreground"));
+
+        dic.Remove("HighlightColor");
+        dic.Add("HighlightColor", Current.GetColor("highlight"));
+    }
+
+    static bool DarkModeSystem
+    {
+        get
+        {
+            string key = @"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize";
+            return (int)(Registry.GetValue(key, "AppsUseLightTheme", 1) ?? 1) == 0;
+        }
+    }
+
+    public static bool DarkMode => App.DarkMode == "system" && DarkModeSystem || App.DarkMode == "always";
+}