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Make sure the UIKit message box is being handled on the main thread 

Potentially fixes https://github.com/libsdl-org/SDL/issues/4865
This commit is contained in:
Sam Lantinga 2022-04-07 11:32:22 -07:00
parent 2823534fef
commit 5613a56032
1 changed files with 19 additions and 5 deletions
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24
src/video/uikit/SDL_uikitmessagebox.m
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@ -186,8 +186,8 @@ UIKit_ShowMessageBoxAlertView(const SDL_MessageBoxData *messageboxdata, int *but
#endif /* __IPHONE_OS_VERSION_MIN_REQUIRED < 80000 */
}
int
UIKit_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
static void
UIKit_ShowMessageBoxImpl(const SDL_MessageBoxData *messageboxdata, int *buttonid, int *returnValue)
{
BOOL success = NO;
@ -199,12 +199,26 @@ UIKit_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
}
if (!success) {
return SDL_SetError("Could not show message box.");
*returnValue = SDL_SetError("Could not show message box.");
} else {
*returnValue = 0;
}
return 0;
}
int
UIKit_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
{ @autoreleasepool
{
__block int returnValue = 0;
if ([NSThread isMainThread]) {
UIKit_ShowMessageBoxImpl(messageboxdata, buttonid, &returnValue);
} else {
dispatch_sync(dispatch_get_main_queue(), ^{ UIKit_ShowMessageBoxImpl(messageboxdata, buttonid, &returnValue); });
}
return returnValue;
}}
#endif /* SDL_VIDEO_DRIVER_UIKIT */
/* vi: set ts=4 sw=4 expandtab: */