SDL: Don't send normal keyboard events if no application window has focus

SDL Commits
1 
From 51fa076fdc56c3d9da92bf2f25bd78a23b80362e Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Tue, 14 Jan 2025 23:28:31 -0800
Subject: [PATCH] Don't send normal keyboard events if no application window
 has focus

This can happen if all the windows shown have the SDL_WINDOW_NOT_FOCUSABLE flag. We'll still accept modifier state changes though, so you can do Control-click actions.
---
 src/video/cocoa/SDL_cocoakeyboard.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/video/cocoa/SDL_cocoakeyboard.m b/src/video/cocoa/SDL_cocoakeyboard.m
index 19ee5932019bf..f73572da59c4a 100644
--- a/src/video/cocoa/SDL_cocoakeyboard.m
+++ b/src/video/cocoa/SDL_cocoakeyboard.m
@@ -476,7 +476,7 @@ void Cocoa_HandleKeyEvent(SDL_VideoDevice *_this, NSEvent *event)
             [data.fieldEdit setPendingKey:scancode scancode:code timestamp:Cocoa_GetEventTimestamp([event timestamp])];
             [data.fieldEdit interpretKeyEvents:[NSArray arrayWithObject:event]];
             [data.fieldEdit sendPendingKey];
-        } else {
+        } else if (SDL_GetKeyboardFocus()) {
             SDL_SendKeyboardKey(Cocoa_GetEventTimestamp([event timestamp]), SDL_DEFAULT_KEYBOARD_ID, scancode, code, true);
         }
         break;