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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 GitHub
parent 2d7f8d7d51
commit 59ad6793b9
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 29 deletions
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34
src/video/cocoa/SDL_cocoamessagebox.m
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@ -31,7 +31,6 @@
NSWindow *nswindow;
}
- (id)initWithParentWindow:(SDL_Window *)window;
- (void)alertDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo;
@end
@implementation SDLMessageBoxPresenter
@ -55,39 +54,16 @@
- (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
static void Cocoa_ShowMessageBoxImpl(const SDL_MessageBoxData *messageboxdata, int *buttonid, int *returnValue)