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,

gradle/libs.versions.toml

@@ -15,6 +15,7 @@ junit = "4.13.2"
 kotlin = "2.4.0"
 kotlinx-coroutines = "1.11.0"
 material3 = "1.11.0-alpha07"
+jna = "5.17.0"
 
 [libraries]
 kotlin-test = { module = "org.jetbrains.kotlin:kotlin-test", version.ref = "kotlin" }
@@ -36,6 +37,7 @@ compose-components-resources = { module = "org.jetbrains.compose.components:comp
 compose-uiToolingPreview = { module = "org.jetbrains.compose.ui:ui-tooling-preview", version.ref = "composeMultiplatform" }
 kotlinx-coroutinesCore = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-core", version.ref = "kotlinx-coroutines" }
 kotlinx-coroutinesSwing = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-swing", version.ref = "kotlinx-coroutines" }
+jna = { module = "net.java.dev.jna:jna", version.ref = "jna" }
 
 [plugins]
 androidApplication = { id = "com.android.application", version.ref = "agp" }

shared/src/commonMain/kotlin/com/vnidrop/app/ui/navigation/AppNavigation.kt

@@ -1,7 +1,6 @@
 package com.vnidrop.app.ui.navigation
 
 import androidx.compose.foundation.background
-import androidx.compose.foundation.border
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -40,23 +39,34 @@ fun AppSidebarNavigation(
 	modifier: Modifier = Modifier,
 ) {
 	val colors = LocalVniDropColors.current
-	Column(
+	Box(
 		modifier = modifier
 			.width(88.dp)
 			.fillMaxHeight()
-			.background(colors.backgroundSurface200)
-			.border(width = 1.dp, color = colors.borderDefault)
-			.padding(vertical = 10.dp),
-		horizontalAlignment = Alignment.CenterHorizontally,
-		verticalArrangement = Arrangement.spacedBy(2.dp),
+			.background(colors.backgroundSurface200),
 	) {
-		primaryNavigationItems.forEach { item ->
-			SidebarNavigationItem(
-				item = item,
-				selected = item.destination == selected,
-				onClick = { onDestinationSelected(item.destination) },
-			)
+		Column(
+			modifier = Modifier
+				.fillMaxHeight()
+				.padding(vertical = 10.dp),
+			horizontalAlignment = Alignment.CenterHorizontally,
+			verticalArrangement = Arrangement.spacedBy(2.dp),
+		) {
+			primaryNavigationItems.forEach { item ->
+				SidebarNavigationItem(
+					item = item,
+					selected = item.destination == selected,
+					onClick = { onDestinationSelected(item.destination) },
+				)
+			}
 		}
+		Box(
+			modifier = Modifier
+				.align(Alignment.CenterEnd)
+				.width(1.dp)
+				.fillMaxHeight()
+				.background(colors.borderDefault),
+		)
 	}
 }
 
@@ -70,10 +80,8 @@ fun AppBottomNavigation(
 	Column(
 		modifier = modifier
 			.fillMaxWidth()
-			.background(colors.backgroundSurface200)
-			.border(width = 1.dp, color = colors.borderDefault),
+			.background(colors.backgroundSurface200),
 	) {
-		ActiveBottomIndicator(selected = selected)
 		Row(
 			modifier = Modifier
 				.fillMaxWidth()
@@ -107,18 +115,8 @@ private fun SidebarNavigationItem(
 		modifier = Modifier
 			.fillMaxWidth()
 			.selectable(selected = selected, onClick = onClick)
-			.background(if (selected) colors.backgroundSurface300 else Color.Transparent)
 			.padding(vertical = 13.dp),
 	) {
-		if (selected) {
-			Box(
-				modifier = Modifier
-					.align(Alignment.CenterStart)
-					.size(width = 4.dp, height = 46.dp)
-					.clip(RoundedCornerShape(topEnd = 4.dp, bottomEnd = 4.dp))
-					.background(colors.brandLink),
-			)
-		}
 		Column(
 			modifier = Modifier.align(Alignment.Center),
 			horizontalAlignment = Alignment.CenterHorizontally,
@@ -168,19 +166,3 @@ private fun BottomNavigationItem(
 		)
 	}
 }
-
-@Composable
-private fun ActiveBottomIndicator(selected: AppDestination) {
-	val colors = LocalVniDropColors.current
-	val index = primaryNavigationItems.indexOfFirst { it.destination == selected }.coerceAtLeast(0)
-	Row(modifier = Modifier.fillMaxWidth()) {
-		repeat(primaryNavigationItems.size) { itemIndex ->
-			Box(
-				modifier = Modifier
-					.weight(1f)
-					.size(height = 3.dp, width = 1.dp)
-					.background(if (itemIndex == index) colors.brandLink else Color.Transparent),
-			)
-		}
-	}
-}

shared/src/commonMain/kotlin/com/vnidrop/app/ui/navigation/VniDropIcons.kt

@@ -41,17 +41,13 @@ object VniDropIcons {
 				strokeLineJoin = StrokeJoin.Round,
 				pathFillType = PathFillType.NonZero,
 			) {
-				moveTo(12f, 3f)
-				lineTo(12f, 15f)
-				moveTo(7f, 10f)
-				lineTo(12f, 15f)
-				lineTo(17f, 10f)
-				moveTo(5f, 21f)
-				lineTo(19f, 21f)
-				moveTo(5f, 17f)
+				moveTo(12f, 17f)
+				lineTo(12f, 3f)
+				moveTo(6f, 11f)
+				lineTo(12f, 17f)
+				lineTo(18f, 11f)
+				moveTo(19f, 21f)
 				lineTo(5f, 21f)
-				moveTo(19f, 17f)
-				lineTo(19f, 21f)
 			}
 		}.build()
 	}
@@ -66,25 +62,22 @@ object VniDropIcons {
 				strokeLineJoin = StrokeJoin.Round,
 				pathFillType = PathFillType.NonZero,
 			) {
+				moveTo(9.671f, 4.136f)
+				arcToRelative(2.34f, 2.34f, 0f, false, true, 4.659f, 0f)
+				arcToRelative(2.34f, 2.34f, 0f, false, false, 3.319f, 1.915f)
+				arcToRelative(2.34f, 2.34f, 0f, false, true, 2.33f, 4.033f)
+				arcToRelative(2.34f, 2.34f, 0f, false, false, 0f, 3.831f)
+				arcToRelative(2.34f, 2.34f, 0f, false, true, -2.33f, 4.033f)
+				arcToRelative(2.34f, 2.34f, 0f, false, false, -3.319f, 1.915f)
+				arcToRelative(2.34f, 2.34f, 0f, false, true, -4.659f, 0f)
+				arcToRelative(2.34f, 2.34f, 0f, false, false, -3.32f, -1.915f)
+				arcToRelative(2.34f, 2.34f, 0f, false, true, -2.33f, -4.033f)
+				arcToRelative(2.34f, 2.34f, 0f, false, false, 0f, -3.831f)
+				arcTo(2.34f, 2.34f, 0f, false, true, 6.35f, 6.051f)
+				arcToRelative(2.34f, 2.34f, 0f, false, false, 3.319f, -1.915f)
 				moveTo(12f, 15f)
-				arcTo(3f, 3f, 0f, false, false, 12f, 9f)
-				arcTo(3f, 3f, 0f, false, false, 12f, 15f)
-				moveTo(19.4f, 15f)
-				lineTo(20.8f, 17.4f)
-				lineTo(18.4f, 21f)
-				lineTo(15.8f, 20f)
-				moveTo(8.2f, 4f)
-				lineTo(5.6f, 3f)
-				lineTo(3.2f, 6.6f)
-				lineTo(4.6f, 9f)
-				moveTo(15.8f, 4f)
-				lineTo(18.4f, 3f)
-				lineTo(20.8f, 6.6f)
-				lineTo(19.4f, 9f)
-				moveTo(4.6f, 15f)
-				lineTo(3.2f, 17.4f)
-				lineTo(5.6f, 21f)
-				lineTo(8.2f, 20f)
+				arcTo(3f, 3f, 0f, false, true, 12f, 9f)
+				arcTo(3f, 3f, 0f, false, true, 12f, 15f)
 			}
 		}.build()
 	}

shared/src/jvmMain/kotlin/com/vnidrop/app/platform/PlatformSystemAppearance.jvm.kt

@@ -22,6 +22,7 @@ internal object DesktopSystemAppearance {
 		if (!isMacOs()) return
 		System.setProperty(MAC_APPEARANCE_PROPERTY, macOsAppearanceName(isDarkTheme))
 		EventQueue.invokeLater {
+			DesktopAppearanceBridge.applyNativeAppearance?.invoke(isDarkTheme)
 			Window.getWindows().forEach { window ->
 				applyWindowChrome(window, isDarkTheme)
 			}
@@ -31,6 +32,8 @@ internal object DesktopSystemAppearance {
 	internal fun macOsAppearanceName(isDarkTheme: Boolean): String =
 		if (isDarkTheme) "NSAppearanceNameDarkAqua" else "NSAppearanceNameAqua"
 
+	internal fun usesTransparentTitlebar(): Boolean = true
+
 	internal fun titlebarBackground(isDarkTheme: Boolean): Color =
 		if (isDarkTheme) Color(0x12, 0x12, 0x12) else Color(0xF8, 0xF8, 0xF8)
 
@@ -38,9 +41,9 @@ internal object DesktopSystemAppearance {
 		val background = titlebarBackground(isDarkTheme)
 		window.background = background
 		(window as? JFrame)?.rootPane?.let { rootPane ->
-			// Keep the native macOS controls and drag behavior, but let the
-			// decorated titlebar blend with the app's resolved light/dark surface.
-			rootPane.putClientProperty(TRANSPARENT_TITLE_BAR_PROPERTY, true)
+			// The titlebar stays native, but AppKit receives the resolved app
+			// appearance so title text and controls switch contrast at runtime.
+			rootPane.putClientProperty(TRANSPARENT_TITLE_BAR_PROPERTY, usesTransparentTitlebar())
 			rootPane.background = background
 			rootPane.contentPane.background = background
 		}
@@ -49,3 +52,8 @@ internal object DesktopSystemAppearance {
 	private fun isMacOs(): Boolean =
 		System.getProperty("os.name").startsWith("Mac", ignoreCase = true)
 }
+
+object DesktopAppearanceBridge {
+	@Volatile
+	var applyNativeAppearance: ((Boolean) -> Unit)? = null
+}

shared/src/jvmTest/kotlin/com/vnidrop/app/platform/DesktopSystemAppearanceTest.kt

@@ -15,4 +15,15 @@ class DesktopSystemAppearanceTest {
 		assertEquals(0x121212, DesktopSystemAppearance.titlebarBackground(isDarkTheme = true).rgb and 0xFFFFFF)
 		assertEquals(0xF8F8F8, DesktopSystemAppearance.titlebarBackground(isDarkTheme = false).rgb and 0xFFFFFF)
 	}
+
+	@Test
+	fun transparentTitlebarIsAlwaysUsedWithAppKitAppearance() {
+		assertEquals(true, DesktopSystemAppearance.usesTransparentTitlebar())
+	}
+
+	@Test
+	fun runtimeAppearanceCallIsFailSoft() {
+		DesktopSystemAppearance.apply(isDarkTheme = true)
+		DesktopSystemAppearance.apply(isDarkTheme = false)
+	}
 }