From 6f684f674e1c91777d6bca6e2a49c478c4d5c401 Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Thu, 29 Jul 2021 18:20:36 -0500
Subject: [PATCH] cocoa: Add keyboard grab support

CGSSetGlobalHotKeyOperatingMode() is not a public API, so we will only
compile this in if SDL_MAC_NO_SANDBOX=1 is defined during compilation.
---
 src/video/cocoa/SDL_cocoakeyboard.h |  2 ++
 src/video/cocoa/SDL_cocoakeyboard.m | 17 +++++++++++++++++
 src/video/cocoa/SDL_cocoavideo.m    |  1 +
 3 files changed, 20 insertions(+)

diff --git a/src/video/cocoa/SDL_cocoakeyboard.h b/src/video/cocoa/SDL_cocoakeyboard.h
index fb8987b2d..6336e126e 100644
--- a/src/video/cocoa/SDL_cocoakeyboard.h
+++ b/src/video/cocoa/SDL_cocoakeyboard.h
@@ -31,6 +31,8 @@ extern void Cocoa_StartTextInput(_THIS);
 extern void Cocoa_StopTextInput(_THIS);
 extern void Cocoa_SetTextInputRect(_THIS, SDL_Rect *rect);
 
+extern void Cocoa_SetWindowKeyboardGrab(_THIS, SDL_Window * window, SDL_bool grabbed);
+
 #endif /* SDL_cocoakeyboard_h_ */
 
 /* vi: set ts=4 sw=4 expandtab: */
diff --git a/src/video/cocoa/SDL_cocoakeyboard.m b/src/video/cocoa/SDL_cocoakeyboard.m
index 0df685c49..cc61bfcd0 100644
--- a/src/video/cocoa/SDL_cocoakeyboard.m
+++ b/src/video/cocoa/SDL_cocoakeyboard.m
@@ -602,6 +602,23 @@ Cocoa_QuitKeyboard(_THIS)
 {
 }
 
+typedef int CGSConnection;
+typedef enum {
+    CGSGlobalHotKeyEnable = 0,
+    CGSGlobalHotKeyDisable = 1,
+} CGSGlobalHotKeyOperatingMode;
+
+extern CGSConnection _CGSDefaultConnection(void);
+extern CGError CGSSetGlobalHotKeyOperatingMode(CGSConnection connection, CGSGlobalHotKeyOperatingMode mode);
+
+void
+Cocoa_SetWindowKeyboardGrab(_THIS, SDL_Window * window, SDL_bool grabbed)
+{
+#if SDL_MAC_NO_SANDBOX
+    CGSSetGlobalHotKeyOperatingMode(_CGSDefaultConnection(), grabbed ? CGSGlobalHotKeyDisable : CGSGlobalHotKeyEnable);
+#endif
+}
+
 #endif /* SDL_VIDEO_DRIVER_COCOA */
 
 /* vi: set ts=4 sw=4 expandtab: */
diff --git a/src/video/cocoa/SDL_cocoavideo.m b/src/video/cocoa/SDL_cocoavideo.m
index cf6d8468f..f70ab747a 100644
--- a/src/video/cocoa/SDL_cocoavideo.m
+++ b/src/video/cocoa/SDL_cocoavideo.m
@@ -103,6 +103,7 @@ Cocoa_CreateDevice(int devindex)
     device->SetWindowGammaRamp = Cocoa_SetWindowGammaRamp;
     device->GetWindowGammaRamp = Cocoa_GetWindowGammaRamp;
     device->SetWindowMouseGrab = Cocoa_SetWindowMouseGrab;
+    device->SetWindowKeyboardGrab = Cocoa_SetWindowKeyboardGrab;
     device->DestroyWindow = Cocoa_DestroyWindow;
     device->GetWindowWMInfo = Cocoa_GetWindowWMInfo;
     device->SetWindowHitTest = Cocoa_SetWindowHitTest;