From ced78c6c8561cd0df4d3a2d6eee00bfbf1d3a31a Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Wed, 7 Nov 2012 08:49:59 -0800
Subject: [PATCH] Don't lose focus if a child window gains focus

---
 src/video/x11/SDL_x11events.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/video/x11/SDL_x11events.c b/src/video/x11/SDL_x11events.c
index 30d0bdb74..51f342629 100644
--- a/src/video/x11/SDL_x11events.c
+++ b/src/video/x11/SDL_x11events.c
@@ -249,6 +249,12 @@ X11_DispatchEvent(_THIS)
 
         /* Gaining input focus? */
     case FocusIn:{
+            if (xevent.xfocus.detail == NotifyInferior) {
+#ifdef DEBUG_XEVENTS
+                printf("window %p: FocusIn (NotifierInferior, ignoring)\n", data);
+#endif
+                break;
+            }
 #ifdef DEBUG_XEVENTS
             printf("window %p: FocusIn!\n", data);
 #endif
@@ -259,6 +265,13 @@ X11_DispatchEvent(_THIS)
 
         /* Losing input focus? */
     case FocusOut:{
+            if (xevent.xfocus.detail == NotifyInferior) {
+                /* We still have focus if a child gets focus */
+#ifdef DEBUG_XEVENTS
+                printf("window %p: FocusOut (NotifierInferior, ignoring)\n", data);
+#endif
+                break;
+            }
 #ifdef DEBUG_XEVENTS
             printf("window %p: FocusOut!\n", data);
 #endif