From 2bf4e4d19ef5266e69f6deab4a82b2307e1c75ce Mon Sep 17 00:00:00 2001
From: Shelley Vohr <shelley.vohr@gmail.com>
Date: Mon, 21 Feb 2022 13:12:07 +0100
Subject: [PATCH] fix: macOS tray icon alternate images

---
 shell/browser/ui/tray_icon_cocoa.mm | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/shell/browser/ui/tray_icon_cocoa.mm b/shell/browser/ui/tray_icon_cocoa.mm
index 128764d47f077..c66ae6c486c3c 100644
--- a/shell/browser/ui/tray_icon_cocoa.mm
+++ b/shell/browser/ui/tray_icon_cocoa.mm
@@ -93,6 +93,15 @@ - (void)setImage:(NSImage*)image {
 
 - (void)setAlternateImage:(NSImage*)image {
   [[statusItem_ button] setAlternateImage:image];
+
+  // We need to change the button type here because the default button type for
+  // NSStatusItem, NSStatusBarButton, does not display alternate content when
+  // clicked. NSButtonTypeMomentaryChange displays its alternate content when
+  // clicked and returns to its normal content when the user releases it, which
+  // is the behavior users would expect when clicking a button with an alternate
+  // image set.
+  [[statusItem_ button] setButtonType:NSButtonTypeMomentaryChange];
+  [self updateDimensions];
 }
 
 - (void)setIgnoreDoubleClickEvents:(BOOL)ignore {