From 2af58e997025f3605f26fffb98446881cb35defc Mon Sep 17 00:00:00 2001
From: tresf <tres.finocchiaro@gmail.com>
Date: Wed, 8 Jul 2020 18:20:10 -0400
Subject: [PATCH] Add a very crude luminosity screen-reader to find out what
 color the icon should be

---
 src/qz/utils/MacUtilities.java    | 16 +++++++++++++++-
 src/qz/utils/SystemUtilities.java | 12 +++++++-----
 2 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/src/qz/utils/MacUtilities.java b/src/qz/utils/MacUtilities.java
index 7bfc1c12b..516c8cc41 100644
--- a/src/qz/utils/MacUtilities.java
+++ b/src/qz/utils/MacUtilities.java
@@ -21,6 +21,7 @@
 import qz.ui.component.IconCache;
 
 import java.awt.*;
+import java.awt.image.BufferedImage;
 import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -107,10 +108,23 @@ public static void registerQuitHandler(TrayManager trayManager) {
      * Runs a shell command to determine if "Dark" desktop theme is enabled
      * @return true if enabled, false if not
      */
-    public static boolean isDarkMode() {
+    public static boolean isDarkDesktop() {
         return !ShellUtilities.execute(new String[] { "defaults", "read", "-g", "AppleInterfaceStyle" }, new String[] { "Dark" }, true, true).isEmpty();
     }
 
+    public static boolean isDarkTaskbar() {
+        try {
+            Rectangle rectangle = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
+            Rectangle topCorner = new Rectangle(rectangle.x, rectangle.y, 1, 1);
+            BufferedImage pixel = new Robot().createScreenCapture(topCorner);
+            Color color = new Color(pixel.getRGB(0, 0));
+            return (color.getRed() * 0.299) + (color.getGreen() * 0.587) + (color.getBlue() * 0.114) <= 174;
+        } catch(AWTException e) {
+            log.warn("Unable to detect dark taskbar: {}", e.getMessage());
+        }
+        return false;
+    }
+
     public static int getScaleFactor() {
         // Java 9+ per JDK-8172962
         if (Constants.JAVA_VERSION.greaterThanOrEqualTo(Version.valueOf("9.0.0"))) {
diff --git a/src/qz/utils/SystemUtilities.java b/src/qz/utils/SystemUtilities.java
index 178b66087..397e0de2c 100644
--- a/src/qz/utils/SystemUtilities.java
+++ b/src/qz/utils/SystemUtilities.java
@@ -313,11 +313,13 @@ public static boolean isDarkTaskbar() {
 
     public static boolean isDarkTaskbar(boolean recheck) {
         if(darkTaskbar == null || recheck) {
-            if (!isWindows()) {
-                // Mac and Linux don't differentiate; return the cached darkDesktop value
-                darkTaskbar = isDarkDesktop();
-            } else {
+            if (isWindows()) {
                 darkTaskbar = WindowsUtilities.isDarkTaskbar();
+            } else if(isMac()) {
+                darkTaskbar = MacUtilities.isDarkTaskbar();
+            } else {
+                // Linux doesn't differentiate; return the cached darkDesktop value
+                darkTaskbar = isDarkDesktop();
             }
         }
         return darkTaskbar.booleanValue();
@@ -331,7 +333,7 @@ public static boolean isDarkDesktop(boolean recheck) {
         if (darkDesktop == null || recheck) {
             // Check for Dark Mode on MacOS
             if (isMac()) {
-                darkDesktop = MacUtilities.isDarkMode();
+                darkDesktop = MacUtilities.isDarkDesktop();
             } else if (isWindows()) {
                 darkDesktop = WindowsUtilities.isDarkDesktop();
             } else {