From 7e45f801d47b758d3889288a96fe55f8c8e4d288 Mon Sep 17 00:00:00 2001
From: ShikiSuen <shikisuen@outlook.com>
Date: Wed, 9 Mar 2022 15:24:08 +0800
Subject: [PATCH] AppDelegate // Add a Bool to tell whether macOS is in Dark
 Mode.

---
 Source/Modules/AppDelegate.swift | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Source/Modules/AppDelegate.swift b/Source/Modules/AppDelegate.swift
index c0e51087..4f9aca18 100644
--- a/Source/Modules/AppDelegate.swift
+++ b/Source/Modules/AppDelegate.swift
@@ -299,4 +299,19 @@ class AppDelegate: NSObject, NSApplicationDelegate, ctlNonModalAlertWindowDelega
             NSLog("vChewingErrorCallback: %@", strPrint)
         }
     }
+    @objc static func isDarkMode() -> Bool {
+        if #available(macOS 10.15, *) {
+            let appearanceDescription = NSApplication.shared.effectiveAppearance.debugDescription.lowercased()
+            if appearanceDescription.contains("dark") {
+                return true
+            }
+        } else if #available(macOS 10.14, *) {
+            if let appleInterfaceStyle = UserDefaults.standard.object(forKey: "AppleInterfaceStyle") as? String {
+                if appleInterfaceStyle.lowercased().contains("dark") {
+                    return true
+                }
+            }
+        }
+        return false
+    }
 }