Flow.Launcher/Flow.Launcher.Core/Resource/Theme.cs

840 lines
35 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Xml;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Markup;
using System.Windows.Media;
using System.Windows.Media.Effects;
using System.Windows.Shell;
using Flow.Launcher.Infrastructure;
using Flow.Launcher.Infrastructure.Logger;
using Flow.Launcher.Infrastructure.UserSettings;
using System.Windows.Shell;
using static Flow.Launcher.Core.Resource.Theme.ParameterTypes;
using System.Runtime.InteropServices;
using System.Windows.Interop;
using System.Diagnostics;
using Microsoft.Win32;
using CommunityToolkit.Mvvm.DependencyInjection;
using Flow.Launcher.Plugin;
using static System.Windows.Forms.VisualStyles.VisualStyleElement;
using TextBox = System.Windows.Controls.TextBox;
using System.Windows.Threading;
using static System.Windows.Forms.VisualStyles.VisualStyleElement.StartPanel;
namespace Flow.Launcher.Core.Resource
{
public class Theme
{
private const string ThemeMetadataNamePrefix = "Name:";
private const string ThemeMetadataIsDarkPrefix = "IsDark:";
private const string ThemeMetadataHasBlurPrefix = "HasBlur:";
private const int ShadowExtraMargin = 32;
private readonly IPublicAPI _api;
private readonly Settings _settings;
private readonly List<string> _themeDirectories = new();
private ResourceDictionary _oldResource;
private string _oldTheme;
private const string Folder = Constant.Themes;
private const string Extension = ".xaml";
private string DirectoryPath => Path.Combine(Constant.ProgramDirectory, Folder);
private string UserDirectoryPath => Path.Combine(DataLocation.DataDirectory(), Folder);
public string CurrentTheme => _settings.Theme;
public bool BlurEnabled { get; set; }
private double mainWindowWidth;
public Theme(IPublicAPI publicAPI, Settings settings)
{
_api = publicAPI;
_settings = settings;
_themeDirectories.Add(DirectoryPath);
_themeDirectories.Add(UserDirectoryPath);
MakeSureThemeDirectoriesExist();
var dicts = Application.Current.Resources.MergedDictionaries;
_oldResource = dicts.First(d =>
{
if (d.Source == null)
return false;
var p = d.Source.AbsolutePath;
var dir = Path.GetDirectoryName(p).NonNull();
var info = new DirectoryInfo(dir);
var f = info.Name;
var e = Path.GetExtension(p);
var found = f == Folder && e == Extension;
return found;
});
_oldTheme = Path.GetFileNameWithoutExtension(_oldResource.Source.AbsolutePath);
}
#region Blur Handling
private const int DWMWA_WINDOW_CORNER_PREFERENCE = 33;
public enum DWM_WINDOW_CORNER_PREFERENCE
{
Default = 0,
DoNotRound = 1,
Round = 2,
RoundSmall = 3
}
[DllImport("dwmapi.dll")]
private static extern int DwmSetWindowAttribute(IntPtr hwnd, int dwAttribute, ref DWM_WINDOW_CORNER_PREFERENCE pvAttribute, int cbAttribute);
public static void SetWindowCornerPreference(System.Windows.Window window, DWM_WINDOW_CORNER_PREFERENCE preference)
{
IntPtr hWnd = new WindowInteropHelper(window).Handle;
DwmSetWindowAttribute(hWnd, DWMWA_WINDOW_CORNER_PREFERENCE, ref preference, sizeof(int));
}
public class ParameterTypes
{
[Flags]
public enum DWMWINDOWATTRIBUTE
{
DWMWA_USE_IMMERSIVE_DARK_MODE = 20,
DWMWA_SYSTEMBACKDROP_TYPE = 38,
DWMWA_TRANSITIONS_FORCEDISABLED = 3,
DWMWA_BORDER_COLOR
}
[StructLayout(LayoutKind.Sequential)]
public struct MARGINS
{
public int cxLeftWidth; // width of left border that retains its size
public int cxRightWidth; // width of right border that retains its size
public int cyTopHeight; // height of top border that retains its size
public int cyBottomHeight; // height of bottom border that retains its size
};
}
public static class Methods
{
[DllImport("dwmapi.dll")]
static extern int DwmSetWindowAttribute(IntPtr hwnd, ParameterTypes.DWMWINDOWATTRIBUTE dwAttribute, ref int pvAttribute, int cbAttribute);
public static int SetWindowAttribute(IntPtr hwnd, ParameterTypes.DWMWINDOWATTRIBUTE attribute, int parameter)
=> DwmSetWindowAttribute(hwnd, attribute, ref parameter, Marshal.SizeOf<int>());
}
private bool IsBackdropSupported()
{
// Windows 11 (22000) over mica and arcrylic.
return RuntimeInformation.IsOSPlatform(OSPlatform.Windows) &&
Environment.OSVersion.Version.Build >= 22000;
}
private System.Windows.Window GetMainWindow()
{
return Application.Current.Dispatcher.Invoke(() => Application.Current.MainWindow);
}
public void RefreshFrame()
{
Application.Current.Dispatcher.Invoke(() =>
{
System.Windows.Window mainWindow = Application.Current.MainWindow;
if (mainWindow == null)
return;
IntPtr mainWindowPtr = new WindowInteropHelper(mainWindow).Handle;
if (mainWindowPtr == IntPtr.Zero)
return;
HwndSource mainWindowSrc = HwndSource.FromHwnd(mainWindowPtr);
if (mainWindowSrc == null)
return;
// Remove OS minimizing/maximizing animation
// Methods.SetWindowAttribute(new WindowInteropHelper(mainWindow).Handle, DWMWINDOWATTRIBUTE.DWMWA_TRANSITIONS_FORCEDISABLED, 3);
// The timing of adding the shadow effect should vary depending on whether the theme is transparent.
if (BlurEnabled)
{
AutoDropShadow();
}
SetBlurForWindow();
if (!BlurEnabled)
{
AutoDropShadow();
}
}, DispatcherPriority.Normal);
}
public void AutoDropShadow()
{
SetWindowCornerPreference("Default");
RemoveDropShadowEffectFromCurrentTheme();
if (_settings.UseDropShadowEffect)
{
if (BlurEnabled && IsBackdropSupported())
{
SetWindowCornerPreference("Round");
}
else
{
SetWindowCornerPreference("Default");
AddDropShadowEffectToCurrentTheme();
}
}
else
{
if (BlurEnabled && IsBackdropSupported())
{
SetWindowCornerPreference("Default");
}
else
{
RemoveDropShadowEffectFromCurrentTheme();
}
}
}
public void SetWindowCornerPreference(string cornerType)
{
Application.Current.Dispatcher.Invoke(() =>
{
System.Windows.Window mainWindow = GetMainWindow();
if (mainWindow == null)
return;
DWM_WINDOW_CORNER_PREFERENCE preference = cornerType switch
{
"DoNotRound" => DWM_WINDOW_CORNER_PREFERENCE.DoNotRound,
"Round" => DWM_WINDOW_CORNER_PREFERENCE.Round,
"RoundSmall" => DWM_WINDOW_CORNER_PREFERENCE.RoundSmall,
"Default" => DWM_WINDOW_CORNER_PREFERENCE.Default,
_ => DWM_WINDOW_CORNER_PREFERENCE.Default,
};
SetWindowCornerPreference(mainWindow, preference);
}, DispatcherPriority.Normal);
}
/// <summary>
/// Sets the blur for a window via SetWindowCompositionAttribute
/// </summary>
public void SetBlurForWindow()
{
Application.Current.Dispatcher.Invoke(() =>
{
var dict = GetThemeResourceDictionary(_settings.Theme);
if (dict == null)
return;
var windowBorderStyle = dict.Contains("WindowBorderStyle") ? dict["WindowBorderStyle"] as Style : null;
if (windowBorderStyle == null)
return;
System.Windows.Window mainWindow = GetMainWindow();
if (mainWindow == null)
return;
// Check if the theme supports blur
bool hasBlur = dict.Contains("ThemeBlurEnabled") && dict["ThemeBlurEnabled"] is bool b && b;
if (!hasBlur)
{
_settings.BackdropType = BackdropTypes.None;
}
// Check the configured BackdropType
int backdropValue = _settings.BackdropType switch
{
BackdropTypes.Acrylic => 3, // Acrylic
BackdropTypes.Mica => 2, // Mica
BackdropTypes.MicaAlt => 4, // MicaAlt
_ => 0 // None
};
if (BlurEnabled && hasBlur && IsBackdropSupported())
{
// If the BackdropType is Mica or MicaAlt, set the windowborderstyle's background to transparent
if (_settings.BackdropType == BackdropTypes.Mica || _settings.BackdropType == BackdropTypes.MicaAlt)
{
windowBorderStyle.Setters.Remove(windowBorderStyle.Setters.OfType<Setter>().FirstOrDefault(x => x.Property.Name == "Background"));
windowBorderStyle.Setters.Add(new Setter(Border.BackgroundProperty, new SolidColorBrush(Color.FromArgb(1, 0, 0, 0))));
Methods.SetWindowAttribute(new WindowInteropHelper(mainWindow).Handle, DWMWINDOWATTRIBUTE.DWMWA_SYSTEMBACKDROP_TYPE, backdropValue);
ColorizeWindow(GetSystemBG());
}
else if (_settings.BackdropType == BackdropTypes.Acrylic)
{
windowBorderStyle.Setters.Remove(windowBorderStyle.Setters.OfType<Setter>().FirstOrDefault(x => x.Property.Name == "Background"));
windowBorderStyle.Setters.Add(new Setter(Border.BackgroundProperty, new SolidColorBrush(Colors.Transparent)));
Methods.SetWindowAttribute(new WindowInteropHelper(mainWindow).Handle, DWMWINDOWATTRIBUTE.DWMWA_SYSTEMBACKDROP_TYPE, backdropValue);
ColorizeWindow(GetSystemBG());
}
else
{
Methods.SetWindowAttribute(new WindowInteropHelper(mainWindow).Handle, DWMWINDOWATTRIBUTE.DWMWA_SYSTEMBACKDROP_TYPE, backdropValue);
ColorizeWindow(GetSystemBG());
}
}
else
{
// Apply default style when Blur is disabled
Methods.SetWindowAttribute(new WindowInteropHelper(mainWindow).Handle, DWMWINDOWATTRIBUTE.DWMWA_SYSTEMBACKDROP_TYPE, 0);
ColorizeWindow(GetSystemBG());
}
UpdateResourceDictionary(dict);
}, DispatcherPriority.Normal);
}
// Get Background Color from WindowBorderStyle when there not color for BG.
// for theme has not "LightBG" or "DarkBG" case.
private Color GetWindowBorderStyleBackground()
{
var Resources = GetThemeResourceDictionary(_settings.Theme);
var windowBorderStyle = (Style)Resources["WindowBorderStyle"];
var backgroundSetter = windowBorderStyle.Setters
.OfType<Setter>()
.FirstOrDefault(s => s.Property == Border.BackgroundProperty);
if (backgroundSetter != null)
{
// Background's Value is DynamicColor Case
var backgroundValue = backgroundSetter.Value;
if (backgroundValue is SolidColorBrush solidColorBrush)
{
return solidColorBrush.Color; // Return SolidColorBrush's Color
}
else if (backgroundValue is DynamicResourceExtension dynamicResource)
{
// When DynamicResource Extension it is, Key is resource's name.
var resourceKey = backgroundSetter.Value.ToString();
// find key in resource and return color.
if (Resources.Contains(resourceKey))
{
var colorResource = Resources[resourceKey];
if (colorResource is SolidColorBrush colorBrush)
{
return colorBrush.Color;
}
else if (colorResource is Color color)
{
return color;
}
}
}
}
return Colors.Transparent; // Default is transparent
}
private void ApplyPreviewBackground(Color? bgColor = null)
{
if (bgColor == null) return;
Application.Current.Dispatcher.Invoke(() =>
{
// Copy the existing WindowBorderStyle
var previewStyle = new Style(typeof(Border));
if (Application.Current.Resources.Contains("WindowBorderStyle"))
{
var originalStyle = Application.Current.Resources["WindowBorderStyle"] as Style;
if (originalStyle != null)
{
foreach (var setter in originalStyle.Setters.OfType<Setter>())
{
previewStyle.Setters.Add(new Setter(setter.Property, setter.Value));
}
}
}
// Apply background color (remove transparency in color)
// WPF does not allow the use of an acrylic brush within the window's internal area,
// so transparency effects are not applied to the preview.
Color backgroundColor = Color.FromRgb(bgColor.Value.R, bgColor.Value.G, bgColor.Value.B);
previewStyle.Setters.Add(new Setter(Border.BackgroundProperty, new SolidColorBrush(backgroundColor)));
// The blur theme keeps the corner round fixed (applying DWM code to modify it causes rendering issues).
// The non-blur theme retains the previously set WindowBorderStyle.
if (BlurEnabled)
{
previewStyle.Setters.Add(new Setter(Border.CornerRadiusProperty, new CornerRadius(5)));
previewStyle.Setters.Add(new Setter(Border.BorderThicknessProperty, new Thickness(1)));
}
Application.Current.Resources["PreviewWindowBorderStyle"] = previewStyle;
}, DispatcherPriority.Render);
}
public void ColorizeWindow(string Mode)
{
Application.Current.Dispatcher.Invoke(() =>
{
var dict = GetThemeResourceDictionary(_settings.Theme);
if (dict == null) return;
var mainWindow = Application.Current.MainWindow;
if (mainWindow == null) return;
// Check if the theme supports blur
bool hasBlur = dict.Contains("ThemeBlurEnabled") && dict["ThemeBlurEnabled"] is bool b && b;
// SystemBG value check (Auto, Light, Dark)
string systemBG = dict.Contains("SystemBG") ? dict["SystemBG"] as string : "Auto"; // 기본값 Auto
// Check the user's ColorScheme setting
string colorScheme = _settings.ColorScheme;
// Check system dark mode setting (read AppsUseLightTheme value)
int themeValue = (int)Registry.GetValue(@"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize", "AppsUseLightTheme", 1);
bool isSystemDark = themeValue == 0;
// Final decision on whether to use dark mode
bool useDarkMode = false;
// If systemBG is not "Auto", prioritize it over ColorScheme and set the mode based on systemBG value
if (systemBG == "Dark")
{
useDarkMode = true; // Dark
}
else if (systemBG == "Light")
{
useDarkMode = false; // Light
}
else if (systemBG == "Auto")
{
// If systemBG is "Auto", decide based on ColorScheme
if (colorScheme == "Dark")
useDarkMode = true;
else if (colorScheme == "Light")
useDarkMode = false;
else
useDarkMode = isSystemDark; // Auto (based on system setting)
}
// Apply DWM Dark Mode
Methods.SetWindowAttribute(new WindowInteropHelper(mainWindow).Handle, DWMWINDOWATTRIBUTE.DWMWA_USE_IMMERSIVE_DARK_MODE, useDarkMode ? 1 : 0);
Color LightBG;
Color DarkBG;
// Retrieve LightBG value (fallback to WindowBorderStyle background color if not found)
try
{
LightBG = dict.Contains("LightBG") ? (Color)dict["LightBG"] : GetWindowBorderStyleBackground();
}
catch (Exception)
{
LightBG = GetWindowBorderStyleBackground();
}
// Retrieve DarkBG value (fallback to LightBG if not found)
try
{
DarkBG = dict.Contains("DarkBG") ? (Color)dict["DarkBG"] : LightBG;
}
catch (Exception)
{
DarkBG = LightBG;
}
// Select background color based on ColorScheme and SystemBG
Color selectedBG = useDarkMode ? DarkBG : LightBG;
ApplyPreviewBackground(selectedBG);
bool isBlurAvailable = hasBlur && IsBackdropSupported(); // Windows 11 미만이면 hasBlur를 강제 false
if (!isBlurAvailable)
{
mainWindow.Background = Brushes.Transparent;
}
else
{
// Only set the background to transparent if the theme supports blur
if (_settings.BackdropType == BackdropTypes.Mica || _settings.BackdropType == BackdropTypes.MicaAlt)
{
mainWindow.Background = new SolidColorBrush(Color.FromArgb(1, 0, 0, 0));
}
else
{
mainWindow.Background = new SolidColorBrush(selectedBG);
}
}
}, DispatcherPriority.Normal);
}
public bool IsBlurTheme()
{
if (!IsBackdropSupported()) // Windows 11 미만이면 무조건 false
return false;
var resource = Application.Current.TryFindResource("ThemeBlurEnabled");
return resource is bool b && b;
}
public string GetSystemBG()
{
if (Environment.OSVersion.Version >= new Version(6, 2))
{
var resource = Application.Current.TryFindResource("SystemBG");
if (resource is string)
return (string)resource;
return null;
}
return null;
}
#endregion
private void MakeSureThemeDirectoriesExist()
{
foreach (var dir in _themeDirectories.Where(dir => !Directory.Exists(dir)))
{
try
{
Directory.CreateDirectory(dir);
}
catch (Exception e)
{
Log.Exception($"|Theme.MakesureThemeDirectoriesExist|Exception when create directory <{dir}>", e);
}
}
}
public bool ChangeTheme(string theme)
{
const string defaultTheme = Constant.DefaultTheme;
string path = GetThemePath(theme);
try
{
if (string.IsNullOrEmpty(path))
throw new DirectoryNotFoundException("Theme path can't be found <{path}>");
// reload all resources even if the theme itself hasn't changed in order to pickup changes
// to things like fonts
UpdateResourceDictionary(GetResourceDictionary(theme));
_settings.Theme = theme;
//always allow re-loading default theme, in case of failure of switching to a new theme from default theme
if (_oldTheme != theme || theme == defaultTheme)
{
_oldTheme = Path.GetFileNameWithoutExtension(_oldResource.Source.AbsolutePath);
}
BlurEnabled = IsBlurTheme();
//if (_settings.UseDropShadowEffect)
// AddDropShadowEffectToCurrentTheme();
//Win32Helper.SetBlurForWindow(Application.Current.MainWindow, BlurEnabled);
SetBlurForWindow();
}
catch (DirectoryNotFoundException)
{
Log.Error($"|Theme.ChangeTheme|Theme <{theme}> path can't be found");
if (theme != defaultTheme)
{
_api.ShowMsgBox(string.Format(InternationalizationManager.Instance.GetTranslation("theme_load_failure_path_not_exists"), theme));
ChangeTheme(defaultTheme);
}
return false;
}
catch (XamlParseException)
{
Log.Error($"|Theme.ChangeTheme|Theme <{theme}> fail to parse");
if (theme != defaultTheme)
{
_api.ShowMsgBox(string.Format(InternationalizationManager.Instance.GetTranslation("theme_load_failure_parse_error"), theme));
ChangeTheme(defaultTheme);
}
return false;
}
return true;
}
private void UpdateResourceDictionary(ResourceDictionary dictionaryToUpdate)
{
var dicts = Application.Current.Resources.MergedDictionaries;
dicts.Remove(_oldResource);
dicts.Add(dictionaryToUpdate);
_oldResource = dictionaryToUpdate;
}
private ResourceDictionary GetThemeResourceDictionary(string theme)
{
var uri = GetThemePath(theme);
var dict = new ResourceDictionary
{
Source = new Uri(uri, UriKind.Absolute)
};
return dict;
}
private ResourceDictionary CurrentThemeResourceDictionary() => GetThemeResourceDictionary(_settings.Theme);
public ResourceDictionary GetResourceDictionary(string theme)
{
var dict = GetThemeResourceDictionary(theme);
if (dict["QueryBoxStyle"] is Style queryBoxStyle &&
dict["QuerySuggestionBoxStyle"] is Style querySuggestionBoxStyle)
{
var fontFamily = new FontFamily(_settings.QueryBoxFont);
var fontStyle = FontHelper.GetFontStyleFromInvariantStringOrNormal(_settings.QueryBoxFontStyle);
var fontWeight = FontHelper.GetFontWeightFromInvariantStringOrNormal(_settings.QueryBoxFontWeight);
var fontStretch = FontHelper.GetFontStretchFromInvariantStringOrNormal(_settings.QueryBoxFontStretch);
queryBoxStyle.Setters.Add(new Setter(TextBox.FontFamilyProperty, fontFamily));
queryBoxStyle.Setters.Add(new Setter(TextBox.FontStyleProperty, fontStyle));
queryBoxStyle.Setters.Add(new Setter(TextBox.FontWeightProperty, fontWeight));
queryBoxStyle.Setters.Add(new Setter(TextBox.FontStretchProperty, fontStretch));
var caretBrushPropertyValue = queryBoxStyle.Setters.OfType<Setter>().Any(x => x.Property.Name == "CaretBrush");
var foregroundPropertyValue = queryBoxStyle.Setters.OfType<Setter>().Where(x => x.Property.Name == "Foreground")
.Select(x => x.Value).FirstOrDefault();
if (!caretBrushPropertyValue && foregroundPropertyValue != null) //otherwise BaseQueryBoxStyle will handle styling
queryBoxStyle.Setters.Add(new Setter(TextBox.CaretBrushProperty, foregroundPropertyValue));
// Query suggestion box's font style is aligned with query box
querySuggestionBoxStyle.Setters.Add(new Setter(TextBox.FontFamilyProperty, fontFamily));
querySuggestionBoxStyle.Setters.Add(new Setter(TextBox.FontStyleProperty, fontStyle));
querySuggestionBoxStyle.Setters.Add(new Setter(TextBox.FontWeightProperty, fontWeight));
querySuggestionBoxStyle.Setters.Add(new Setter(TextBox.FontStretchProperty, fontStretch));
}
if (dict["ItemTitleStyle"] is Style resultItemStyle &&
dict["ItemTitleSelectedStyle"] is Style resultItemSelectedStyle &&
dict["ItemHotkeyStyle"] is Style resultHotkeyItemStyle &&
dict["ItemHotkeySelectedStyle"] is Style resultHotkeyItemSelectedStyle)
{
Setter fontFamily = new Setter(TextBlock.FontFamilyProperty, new FontFamily(_settings.ResultFont));
Setter fontStyle = new Setter(TextBlock.FontStyleProperty, FontHelper.GetFontStyleFromInvariantStringOrNormal(_settings.ResultFontStyle));
Setter fontWeight = new Setter(TextBlock.FontWeightProperty, FontHelper.GetFontWeightFromInvariantStringOrNormal(_settings.ResultFontWeight));
Setter fontStretch = new Setter(TextBlock.FontStretchProperty, FontHelper.GetFontStretchFromInvariantStringOrNormal(_settings.ResultFontStretch));
Setter[] setters = { fontFamily, fontStyle, fontWeight, fontStretch };
Array.ForEach(
new[] { resultItemStyle, resultItemSelectedStyle, resultHotkeyItemStyle, resultHotkeyItemSelectedStyle }, o
=> Array.ForEach(setters, p => o.Setters.Add(p)));
}
if (
dict["ItemSubTitleStyle"] is Style resultSubItemStyle &&
dict["ItemSubTitleSelectedStyle"] is Style resultSubItemSelectedStyle)
{
Setter fontFamily = new Setter(TextBlock.FontFamilyProperty, new FontFamily(_settings.ResultSubFont));
Setter fontStyle = new Setter(TextBlock.FontStyleProperty, FontHelper.GetFontStyleFromInvariantStringOrNormal(_settings.ResultSubFontStyle));
Setter fontWeight = new Setter(TextBlock.FontWeightProperty, FontHelper.GetFontWeightFromInvariantStringOrNormal(_settings.ResultSubFontWeight));
Setter fontStretch = new Setter(TextBlock.FontStretchProperty, FontHelper.GetFontStretchFromInvariantStringOrNormal(_settings.ResultSubFontStretch));
Setter[] setters = { fontFamily, fontStyle, fontWeight, fontStretch };
Array.ForEach(
new[] { resultSubItemStyle,resultSubItemSelectedStyle}, o
=> Array.ForEach(setters, p => o.Setters.Add(p)));
}
/* Ignore Theme Window Width and use setting */
var windowStyle = dict["WindowStyle"] as Style;
var width = _settings.WindowSize;
windowStyle.Setters.Add(new Setter(System.Windows.Window.WidthProperty, width));
mainWindowWidth = (double)width;
return dict;
}
private ResourceDictionary GetCurrentResourceDictionary( )
{
return GetResourceDictionary(_settings.Theme);
}
public List<ThemeData> LoadAvailableThemes()
{
List<ThemeData> themes = new List<ThemeData>();
foreach (var themeDirectory in _themeDirectories)
{
var filePaths = Directory
.GetFiles(themeDirectory)
.Where(filePath => filePath.EndsWith(Extension) && !filePath.EndsWith("Base.xaml"))
.Select(GetThemeDataFromPath);
themes.AddRange(filePaths);
}
return themes.OrderBy(o => o.Name).ToList();
}
private ThemeData GetThemeDataFromPath(string path)
{
using var reader = XmlReader.Create(path);
reader.Read();
var extensionlessName = Path.GetFileNameWithoutExtension(path);
if (reader.NodeType is not XmlNodeType.Comment)
return new ThemeData(extensionlessName, extensionlessName);
var commentLines = reader.Value.Trim().Split('\n').Select(v => v.Trim());
var name = extensionlessName;
bool? isDark = null;
bool? hasBlur = null;
foreach (var line in commentLines)
{
if (line.StartsWith(ThemeMetadataNamePrefix, StringComparison.OrdinalIgnoreCase))
{
name = line.Remove(0, ThemeMetadataNamePrefix.Length).Trim();
}
else if (line.StartsWith(ThemeMetadataIsDarkPrefix, StringComparison.OrdinalIgnoreCase))
{
isDark = bool.Parse(line.Remove(0, ThemeMetadataIsDarkPrefix.Length).Trim());
}
else if (line.StartsWith(ThemeMetadataHasBlurPrefix, StringComparison.OrdinalIgnoreCase))
{
hasBlur = bool.Parse(line.Remove(0, ThemeMetadataHasBlurPrefix.Length).Trim());
}
}
return new ThemeData(extensionlessName, name, isDark, hasBlur);
}
private string GetThemePath(string themeName)
{
foreach (string themeDirectory in _themeDirectories)
{
string path = Path.Combine(themeDirectory, themeName + Extension);
if (File.Exists(path))
{
return path;
}
}
return string.Empty;
}
public void AddDropShadowEffectToCurrentTheme()
{
var dict = GetCurrentResourceDictionary();
var windowBorderStyle = dict["WindowBorderStyle"] as Style;
var effectSetter = new Setter
{
Property = Border.EffectProperty,
Value = new DropShadowEffect
{
Opacity = 0.3,
ShadowDepth = 12,
Direction = 270,
BlurRadius = 30
}
};
var marginSetter = windowBorderStyle.Setters.FirstOrDefault(setterBase => setterBase is Setter setter && setter.Property == Border.MarginProperty) as Setter;
if (marginSetter == null)
{
var margin = new Thickness(ShadowExtraMargin, 12, ShadowExtraMargin, ShadowExtraMargin);
marginSetter = new Setter()
{
Property = Border.MarginProperty,
Value = margin,
};
windowBorderStyle.Setters.Add(marginSetter);
SetResizeBoarderThickness(margin);
}
else
{
var baseMargin = (Thickness)marginSetter.Value;
var newMargin = new Thickness(
baseMargin.Left + ShadowExtraMargin,
baseMargin.Top + ShadowExtraMargin,
baseMargin.Right + ShadowExtraMargin,
baseMargin.Bottom + ShadowExtraMargin);
marginSetter.Value = newMargin;
SetResizeBoarderThickness(newMargin);
}
windowBorderStyle.Setters.Add(effectSetter);
UpdateResourceDictionary(dict);
}
public void RemoveDropShadowEffectFromCurrentTheme()
{
var dict = GetCurrentResourceDictionary();
var windowBorderStyle = dict["WindowBorderStyle"] as Style;
var effectSetter = windowBorderStyle.Setters.FirstOrDefault(setterBase => setterBase is Setter setter && setter.Property == Border.EffectProperty) as Setter;
var marginSetter = windowBorderStyle.Setters.FirstOrDefault(setterBase => setterBase is Setter setter && setter.Property == Border.MarginProperty) as Setter;
if (effectSetter != null)
{
windowBorderStyle.Setters.Remove(effectSetter);
}
if (marginSetter != null)
{
var currentMargin = (Thickness)marginSetter.Value;
var newMargin = new Thickness(
currentMargin.Left - ShadowExtraMargin,
currentMargin.Top - ShadowExtraMargin,
currentMargin.Right - ShadowExtraMargin,
currentMargin.Bottom - ShadowExtraMargin);
marginSetter.Value = newMargin;
}
SetResizeBoarderThickness(null);
UpdateResourceDictionary(dict);
}
// because adding drop shadow effect will change the margin of the window,
// we need to update the window chrome thickness to correct set the resize border
private static void SetResizeBoarderThickness(Thickness? effectMargin)
{
var window = Application.Current.MainWindow;
if (WindowChrome.GetWindowChrome(window) is WindowChrome windowChrome)
{
Thickness thickness;
if (effectMargin == null)
{
thickness = SystemParameters.WindowResizeBorderThickness;
}
else
{
thickness = new Thickness(
effectMargin.Value.Left + SystemParameters.WindowResizeBorderThickness.Left,
effectMargin.Value.Top + SystemParameters.WindowResizeBorderThickness.Top,
effectMargin.Value.Right + SystemParameters.WindowResizeBorderThickness.Right,
effectMargin.Value.Bottom + SystemParameters.WindowResizeBorderThickness.Bottom);
}
windowChrome.ResizeBorderThickness = thickness;
}
}
public record ThemeData(string FileNameWithoutExtension, string Name, bool? IsDark = null, bool? HasBlur = null);
}
}