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Fix For issue #6948 (#6991)

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MessageBoxes attached to a window in macOS should use modal APIs and not
use a poll/sleep pattern on the main thread. Sleeping the main thread
makes the NSWindow message loop sluggish and interferes with external
applications that need to send messages to that window, such as
VoiceOver.
This commit is contained in:
Matt Durgavich 2023-01-05 11:54:27 -05:00 committed by Sam Lantinga
parent c83428475d
commit dfc56cfc0e
1 changed files with 6 additions and 26 deletions
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32
src/video/cocoa/SDL_cocoamessagebox.m
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@ -32,8 +32,7 @@
NSInteger clicked;
NSWindow *nswindow;
}
- (id) initWithParentWindow:(SDL_Window *)window;
- (void) alertDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo;
- (id)initWithParentWindow:(SDL_Window *)window;
@end
@implementation SDLMessageBoxPresenter
@ -57,35 +56,16 @@
- (void)showAlert:(NSAlert*)alert
{
if (nswindow) {
#ifdef MAC_OS_X_VERSION_10_9
if ([alert respondsToSelector:@selector(beginSheetModalForWindow:completionHandler:)]) {
[alert beginSheetModalForWindow:nswindow completionHandler:^(NSModalResponse returnCode) {
self->clicked = returnCode;
}];
} else
#endif
{
#if MAC_OS_X_VERSION_MIN_REQUIRED < 1090
[alert beginSheetModalForWindow:nswindow modalDelegate:self didEndSelector:@selector(alertDidEnd:returnCode:contextInfo:) contextInfo:nil];
#endif
}
while (clicked < 0) {
SDL_PumpEvents();
SDL_Delay(100);
}
[alert beginSheetModalForWindow:nswindow
completionHandler:^(NSModalResponse returnCode) {
[NSApp stopModalWithCode:returnCode];
}];
clicked = [NSApp runModalForWindow:nswindow];
nswindow = nil;
} else {
clicked = [alert runModal];
}
}
- (void) alertDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo
{
clicked = returnCode;
}
@end