Polish native shell navigation

desktopApp/build.gradle.kts

@@ -11,6 +11,7 @@ dependencies {
 
 	implementation(compose.desktop.currentOs)
 	implementation(libs.kotlinx.coroutinesSwing)
+	implementation(libs.jna)
 
 	implementation(libs.compose.uiToolingPreview)
 }

desktopApp/src/main/kotlin/com/vnidrop/app/MacOsAppKitAppearance.kt

@@ -0,0 +1,51 @@
+package com.vnidrop.app
+
+import com.sun.jna.Library
+import com.sun.jna.Native
+import com.sun.jna.NativeLibrary
+import com.sun.jna.Pointer
+
+internal object MacOsAppKitAppearance {
+	private val objc: ObjCRuntime? by lazy {
+		runCatching {
+			NativeLibrary.getInstance("AppKit")
+			Native.load("objc", ObjCRuntime::class.java)
+		}.getOrNull()
+	}
+
+	fun apply(isDarkTheme: Boolean) {
+		if (!isMacOs()) return
+		runCatching {
+			val runtime = objc ?: return
+			val applicationClass = runtime.objc_getClass("NSApplication") ?: return
+			val appearanceClass = runtime.objc_getClass("NSAppearance") ?: return
+			val application = runtime.objc_msgSend(applicationClass, runtime.sel_registerName("sharedApplication")) ?: return
+			val appearanceName = nsString(runtime, macOsAppearanceName(isDarkTheme)) ?: return
+			val appearance = runtime.objc_msgSend(
+				appearanceClass,
+				runtime.sel_registerName("appearanceNamed:"),
+				appearanceName,
+			) ?: return
+			runtime.objc_msgSend(application, runtime.sel_registerName("setAppearance:"), appearance)
+		}
+	}
+
+	private fun macOsAppearanceName(isDarkTheme: Boolean): String =
+		if (isDarkTheme) "NSAppearanceNameDarkAqua" else "NSAppearanceNameAqua"
+
+	private fun nsString(runtime: ObjCRuntime, value: String): Pointer? {
+		val stringClass = runtime.objc_getClass("NSString") ?: return null
+		return runtime.objc_msgSend(stringClass, runtime.sel_registerName("stringWithUTF8String:"), value)
+	}
+
+	private fun isMacOs(): Boolean =
+		System.getProperty("os.name").startsWith("Mac", ignoreCase = true)
+}
+
+private interface ObjCRuntime : Library {
+	fun objc_getClass(name: String): Pointer?
+	fun sel_registerName(name: String): Pointer
+	fun objc_msgSend(receiver: Pointer?, selector: Pointer?): Pointer?
+	fun objc_msgSend(receiver: Pointer?, selector: Pointer?, argument: Pointer?): Pointer?
+	fun objc_msgSend(receiver: Pointer?, selector: Pointer?, argument: String): Pointer?
+}

desktopApp/src/main/kotlin/com/vnidrop/app/main.kt

@@ -2,9 +2,11 @@ package com.vnidrop.app
 
 import androidx.compose.ui.window.Window
 import androidx.compose.ui.window.application
+import com.vnidrop.app.platform.DesktopAppearanceBridge
 
 fun main() {
 	configureMacOsNativeAppearance()
+	DesktopAppearanceBridge.applyNativeAppearance = MacOsAppKitAppearance::apply
 	application {
 		Window(
 			onCloseRequest = ::exitApplication,