Only check for keyboard focus if the video subsystem was initialized.

Check the hint at initialization time, as an optimization.  This isn't something we expect the application to change at runtime, and if it is we should add an API for it.
This commit is contained in:
Sam Lantinga 2013-06-28 23:29:13 -07:00
parent 66328f31b9
commit 563185f19c

View file

@ -22,6 +22,7 @@
/* This is the joystick API for Simple DirectMedia Layer */ /* This is the joystick API for Simple DirectMedia Layer */
#include "SDL.h"
#include "SDL_events.h" #include "SDL_events.h"
#include "SDL_sysjoystick.h" #include "SDL_sysjoystick.h"
#include "SDL_assert.h" #include "SDL_assert.h"
@ -31,17 +32,25 @@
#include "../events/SDL_events_c.h" #include "../events/SDL_events_c.h"
#endif #endif
static SDL_bool SDL_joystick_allows_background_events = SDL_FALSE;
static SDL_Joystick *SDL_joysticks = NULL; static SDL_Joystick *SDL_joysticks = NULL;
static SDL_Joystick *SDL_updating_joystick = NULL; static SDL_Joystick *SDL_updating_joystick = NULL;
int int
SDL_JoystickInit(void) SDL_JoystickInit(void)
{ {
const char *hint;
int status; int status;
/* Check to see if we should allow joystick events while in the background */
hint = SDL_GetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS);
if (hint && *hint == '1') {
SDL_joystick_allows_background_events = SDL_TRUE;
}
status = SDL_SYS_JoystickInit(); status = SDL_SYS_JoystickInit();
if (status >= 0) { if (status >= 0) {
status = 0; status = 0;
} }
return (status); return (status);
} }
@ -455,17 +464,22 @@ SDL_JoystickQuit(void)
static SDL_bool static SDL_bool
SDL_PrivateJoystickShouldIgnoreEvent() SDL_PrivateJoystickShouldIgnoreEvent()
{ {
const char *hint; if (SDL_joystick_allows_background_events)
if (SDL_GetKeyboardFocus() != NULL) { {
return SDL_FALSE; return SDL_FALSE;
} }
hint = SDL_GetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS); if (SDL_WasInit(SDL_INIT_VIDEO)) {
if (hint && *hint == '1') { if (SDL_GetKeyboardFocus() == NULL) {
return SDL_FALSE; // Video is initialized and we don't have focus, ignore the event.
return SDL_TRUE;
} else {
return SDL_FALSE;
}
} }
return SDL_TRUE; // Video subsystem wasn't initialized, always allow the event
return SDL_FALSE;
} }
/* These are global for SDL_sysjoystick.c and SDL_events.c */ /* These are global for SDL_sysjoystick.c and SDL_events.c */