Add workaround for fix alt-tab issue in SDL2.

Also add option to enable/disable this workaround.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/input/keyboardconfig.h b/src/input/keyboardconfig.h
index 1759e4bb9..ef3f056b7 100644
--- a/src/input/keyboardconfig.h
+++ b/src/input/keyboardconfig.h
@@ -129,6 +129,10 @@ class KeyboardConfig final
 
         void resetRepeat(const int key);
 
+#ifdef USE_SDL2
+        bool ignoreKey(const SDL_Event &restrict event) A_WARN_UNUSED;
+#endif  // USE_SDL2
+
     private:
         bool mEnabled;                   /**< Flag to respond to key input */
 
@@ -143,6 +147,8 @@ class KeyboardConfig final
         KeyToIdMap mKeyToId;
 
         KeyTimeMap mKeyTimeMap;
+
+        bool mBlockAltTab;
 };
 
 extern KeyboardConfig keyboard;