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Keep the lifecycle observer active while there are windows active

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Fixes https://github.com/libsdl-org/SDL/issues/11627
This commit is contained in:
Sam Lantinga
2025-01-14 19:41:02 -08:00
parent 355f69ebfe
commit 2c7b7d1d33
2 changed files with 23 additions and 2 deletions
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12
src/video/SDL_video.c
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@@ -172,6 +172,10 @@ extern bool Cocoa_IsWindowInFullscreenSpace(SDL_Window *window);
extern bool Cocoa_SetWindowFullscreenSpace(SDL_Window *window, bool state, bool blocking);
#endif
#ifdef SDL_VIDEO_DRIVER_UIKIT
extern void SDL_UpdateLifecycleObserver(void);
#endif
static void SDL_CheckWindowDisplayChanged(SDL_Window *window);
static void SDL_CheckWindowDisplayScaleChanged(SDL_Window *window);
static void SDL_CheckWindowSafeAreaChanged(SDL_Window *window);
@@ -2467,6 +2471,10 @@ SDL_Window *SDL_CreateWindowWithProperties(SDL_PropertiesID props)
// Make sure window pixel size is up to date
SDL_CheckWindowPixelSizeChanged(window);
#ifdef SDL_VIDEO_DRIVER_UIKIT
SDL_UpdateLifecycleObserver();
#endif
SDL_ClearError();
return window;
@@ -4198,6 +4206,10 @@ void SDL_DestroyWindow(SDL_Window *window)
}
SDL_free(window);
#ifdef SDL_VIDEO_DRIVER_UIKIT
SDL_UpdateLifecycleObserver();
#endif
}
bool SDL_ScreenSaverEnabled(void)

13
src/video/uikit/SDL_uikitevents.m
View File

@@ -44,7 +44,16 @@ static BOOL UIKit_EventPumpEnabled = YES;
- (void)update
{
NSNotificationCenter *notificationCenter = NSNotificationCenter.defaultCenter;
if ((UIKit_EventPumpEnabled || SDL_HasMainCallbacks()) && !self.isObservingNotifications) {
bool wants_observation = (UIKit_EventPumpEnabled || SDL_HasMainCallbacks());
if (!wants_observation) {
// Make sure no windows have active animation callbacks
int num_windows = 0;
SDL_free(SDL_GetWindows(&num_windows));
if (num_windows > 0) {
wants_observation = true;
}
}
if (wants_observation && !self.isObservingNotifications) {
self.isObservingNotifications = YES;
[notificationCenter addObserver:self selector:@selector(applicationDidBecomeActive) name:UIApplicationDidBecomeActiveNotification object:nil];
[notificationCenter addObserver:self selector:@selector(applicationWillResignActive) name:UIApplicationWillResignActiveNotification object:nil];
@@ -58,7 +67,7 @@ static BOOL UIKit_EventPumpEnabled = YES;
name:UIApplicationDidChangeStatusBarOrientationNotification
object:nil];
#endif
} else if (!UIKit_EventPumpEnabled && !SDL_HasMainCallbacks() && self.isObservingNotifications) {
} else if (!wants_observation && self.isObservingNotifications) {
self.isObservingNotifications = NO;
[notificationCenter removeObserver:self];
}