From d043a8eebad75d9d32684af93b81f466f68176d5 Mon Sep 17 00:00:00 2001
From: 1024jp <1024jp@wolfrosch.com>
Date: Wed, 25 Sep 2024 23:01:18 +0900
Subject: [PATCH] Remove NSAppearance.isHighContrast

---
 .../Sources/Extensions/AppKit/NSAppearance.swift  | 15 +--------------
 CotEditor/Sources/Views/FormPopUpButton.swift     | 13 +++++++------
 2 files changed, 8 insertions(+), 20 deletions(-)

diff --git a/CotEditor/Sources/Extensions/AppKit/NSAppearance.swift b/CotEditor/Sources/Extensions/AppKit/NSAppearance.swift
index 712aa001e7..08c71034e9 100644
--- a/CotEditor/Sources/Extensions/AppKit/NSAppearance.swift
+++ b/CotEditor/Sources/Extensions/AppKit/NSAppearance.swift
@@ -27,26 +27,13 @@ import AppKit.NSAppearance
 
 extension NSAppearance {
     
+    /// The receiver is in the Dark Mode.
     final var isDark: Bool {
         
         self.bestMatch(from: [.aqua, .darkAqua]) == .darkAqua
     }
     
     
-    final var isHighContrast: Bool {
-        
-        switch self.name {
-            case .accessibilityHighContrastAqua,
-                 .accessibilityHighContrastDarkAqua,
-                 .accessibilityHighContrastVibrantLight,
-                 .accessibilityHighContrastVibrantDark:
-                true
-            default:
-                false
-        }
-    }
-    
-    
     /// The corresponding appearance for the light/dark mode.
     ///
     /// - Parameter isDark: Whether the return value to be for dark mode or not.
diff --git a/CotEditor/Sources/Views/FormPopUpButton.swift b/CotEditor/Sources/Views/FormPopUpButton.swift
index eb07015faf..06251c1677 100644
--- a/CotEditor/Sources/Views/FormPopUpButton.swift
+++ b/CotEditor/Sources/Views/FormPopUpButton.swift
@@ -86,15 +86,16 @@ final class FormPopUpButtonCell: NSPopUpButtonCell {
             : cellFrame.maxX - width - 6
         let rect = NSRect(x: x, y: cellFrame.minY + 3,
                           width: width, height: cellFrame.height - 9)
-        let appearance = controlView.effectiveAppearance
+        let isDark = controlView.effectiveAppearance.isDark
+        let isHighContrast = NSWorkspace.shared.accessibilityDisplayShouldIncreaseContrast
         
         // draw capsule
         let fillPath = NSBezierPath(roundedRect: rect, xRadius: 4, yRadius: 4)
-        if self.isEnabled, !appearance.isDark, appearance.isHighContrast {
+        if self.isEnabled, !isDark, isHighContrast {
             NSGradient(starting: .init(white: 0.4, alpha: 1), ending: .init(white: 0.3, alpha: 1))!
                 .draw(in: fillPath, angle: 90)
         } else {
-            let fillColor: NSColor = switch (appearance.isHighContrast, appearance.isDark, self.isEnabled) {
+            let fillColor: NSColor = switch (isHighContrast, isDark, self.isEnabled) {
                 case (false, false, true): .quaternarySystemFill
                 case (false, false, false): .quinarySystemFill
                 case (false, true, true): .tertiarySystemFill
@@ -109,7 +110,7 @@ final class FormPopUpButtonCell: NSPopUpButtonCell {
             fillPath.fill()
         }
         
-        if appearance.isHighContrast {
+        if isHighContrast {
             let strokeColor: NSColor = self.isEnabled ? .labelColor : .quaternaryLabelColor
             
             strokeColor.setStroke()
@@ -118,10 +119,10 @@ final class FormPopUpButtonCell: NSPopUpButtonCell {
         
         // draw chevron
         let chevron: NSImage = .chevronUpChevronDownNarrow
-        let chevronColor: NSColor = switch (appearance.isHighContrast, self.isEnabled) {
+        let chevronColor: NSColor = switch (isHighContrast, self.isEnabled) {
             case (false, true): .controlTextColor
             case (false, false): .disabledControlTextColor
-            case (true, true): appearance.isDark ? .black : .selectedMenuItemTextColor
+            case (true, true): isDark ? .black : .selectedMenuItemTextColor
             case (true, false): .tertiaryLabelColor
         }
         chevron.tinted(with: chevronColor)