Add method to get "base" system UI color (macOS/Windows) and system theme change callback.

3 files changed, 29 insertions, 5 deletions

diff --git a/platform/android/java/lib/src/org/godotengine/godot/Godot.kt b/platform/android/java/lib/src/org/godotengine/godot/Godot.kt
index da86e67c7d..dd007a4254 100644
--- a/platform/android/java/lib/src/org/godotengine/godot/Godot.kt
+++ b/platform/android/java/lib/src/org/godotengine/godot/Godot.kt
@@ -149,6 +149,7 @@ class Godot(private val context: Context) : SensorEventListener {
 	private var useApkExpansion = false
 	private var useImmersive = false
 	private var useDebugOpengl = false
+	private var darkMode = false;
 
 	private var containerLayout: FrameLayout? = null
 	var renderView: GodotRenderView? = null
@@ -184,6 +185,8 @@ class Godot(private val context: Context) : SensorEventListener {
 			return
 		}
 
+		darkMode = context.resources?.configuration?.uiMode?.and(Configuration.UI_MODE_NIGHT_MASK) == Configuration.UI_MODE_NIGHT_YES
+
 		beginBenchmarkMeasure("Startup", "Godot::onCreate")
 		try {
 			this.primaryHost = primaryHost
@@ -560,6 +563,17 @@ class Godot(private val context: Context) : SensorEventListener {
 	}
 
 	/**
+	 * Configuration change callback
+	*/
+	fun onConfigurationChanged(newConfig: Configuration) {
+		var newDarkMode = newConfig.uiMode?.and(Configuration.UI_MODE_NIGHT_MASK) == Configuration.UI_MODE_NIGHT_YES
+		if (darkMode != newDarkMode) {
+			darkMode = newDarkMode
+			GodotLib.onNightModeChanged()
+		}
+	}
+
+	/**
 	 * Activity result callback
 	 */
 	fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
@@ -731,7 +745,7 @@ class Godot(private val context: Context) : SensorEventListener {
 	 */
 	@Keep
 	private fun isDarkModeSupported(): Boolean {
-		return Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q
+		return context.resources?.configuration?.uiMode?.and(Configuration.UI_MODE_NIGHT_MASK) != Configuration.UI_MODE_NIGHT_UNDEFINED
 	}
 
 	/**
@@ -739,10 +753,7 @@ class Godot(private val context: Context) : SensorEventListener {
 	 */
 	@Keep
 	private fun isDarkMode(): Boolean {
-		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
-			return context.resources?.configuration?.uiMode?.and(Configuration.UI_MODE_NIGHT_MASK) == Configuration.UI_MODE_NIGHT_YES
-		}
-		return false
+		return darkMode
 	}
 
 	fun hasClipboard(): Boolean {
diff --git a/platform/android/java/lib/src/org/godotengine/godot/GodotFragment.java b/platform/android/java/lib/src/org/godotengine/godot/GodotFragment.java
index 643c9a658e..a323045e1b 100644
--- a/platform/android/java/lib/src/org/godotengine/godot/GodotFragment.java
+++ b/platform/android/java/lib/src/org/godotengine/godot/GodotFragment.java
@@ -38,6 +38,7 @@ import android.app.PendingIntent;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
+import android.content.res.Configuration;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Messenger;
@@ -147,6 +148,13 @@ public class GodotFragment extends Fragment implements IDownloaderClient, GodotH
 
 	@CallSuper
 	@Override
+	public void onConfigurationChanged(Configuration newConfig) {
+		super.onConfigurationChanged(newConfig);
+		godot.onConfigurationChanged(newConfig);
+	}
+
+	@CallSuper
+	@Override
 	public void onActivityResult(int requestCode, int resultCode, Intent data) {
 		super.onActivityResult(requestCode, resultCode, data);
 		if (resultCallback != null) {
diff --git a/platform/android/java/lib/src/org/godotengine/godot/GodotLib.java b/platform/android/java/lib/src/org/godotengine/godot/GodotLib.java
index fee50e93c2..d0c3d4a687 100644
--- a/platform/android/java/lib/src/org/godotengine/godot/GodotLib.java
+++ b/platform/android/java/lib/src/org/godotengine/godot/GodotLib.java
@@ -220,6 +220,11 @@ public class GodotLib {
 	public static native void requestPermissionResult(String p_permission, boolean p_result);
 
 	/**
+	 * Invoked on the theme light/dark mode change.
+	 */
+	public static native void onNightModeChanged();
+
+	/**
 	 * Invoked on the GL thread to configure the height of the virtual keyboard.
 	 */
 	public static native void setVirtualKeyboardHeight(int p_height);