1 files changed, 145 insertions, 0 deletions

diff --git a/contrib/SDL-3.2.8/src/video/cocoa/SDL_cocoamessagebox.m b/contrib/SDL-3.2.8/src/video/cocoa/SDL_cocoamessagebox.m
new file mode 100644
index 0000000..d54adb1
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/video/cocoa/SDL_cocoamessagebox.m
@@ -0,0 +1,145 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#ifdef SDL_VIDEO_DRIVER_COCOA
+
+#include "SDL_cocoavideo.h"
+
+@interface SDL3MessageBoxPresenter : NSObject
+{
+  @public
+    NSInteger clicked;
+    NSWindow *nswindow;
+}
+- (id)initWithParentWindow:(SDL_Window *)window;
+@end
+
+@implementation SDL3MessageBoxPresenter
+- (id)initWithParentWindow:(SDL_Window *)window
+{
+    self = [super init];
+    if (self) {
+        clicked = -1;
+
+        // Retain the NSWindow because we'll show the alert later on the main thread
+        if (window) {
+            nswindow = ((__bridge SDL_CocoaWindowData *)window->internal).nswindow;
+        } else {
+            nswindow = nil;
+        }
+    }
+
+    return self;
+}
+
+- (void)showAlert:(NSAlert *)alert
+{
+    if (nswindow) {
+        [alert beginSheetModalForWindow:nswindow
+                      completionHandler:^(NSModalResponse returnCode) {
+                        [NSApp stopModalWithCode:returnCode];
+                      }];
+        clicked = [NSApp runModalForWindow:nswindow];
+        nswindow = nil;
+    } else {
+        clicked = [alert runModal];
+    }
+}
+@end
+
+static void Cocoa_ShowMessageBoxImpl(const SDL_MessageBoxData *messageboxdata, int *buttonID, bool *result)
+{
+    NSAlert *alert;
+    const SDL_MessageBoxButtonData *buttons = messageboxdata->buttons;
+    SDL3MessageBoxPresenter *presenter;
+    NSInteger clicked;
+    int i;
+    Cocoa_RegisterApp();
+
+    alert = [[NSAlert alloc] init];
+
+    if (messageboxdata->flags & SDL_MESSAGEBOX_ERROR) {
+        [alert setAlertStyle:NSAlertStyleCritical];
+    } else if (messageboxdata->flags & SDL_MESSAGEBOX_WARNING) {
+        [alert setAlertStyle:NSAlertStyleWarning];
+    } else {
+        [alert setAlertStyle:NSAlertStyleInformational];
+    }
+
+    [alert setMessageText:[NSString stringWithUTF8String:messageboxdata->title]];
+    [alert setInformativeText:[NSString stringWithUTF8String:messageboxdata->message]];
+
+    for (i = 0; i < messageboxdata->numbuttons; ++i) {
+        const SDL_MessageBoxButtonData *sdlButton;
+        NSButton *button;
+
+        if (messageboxdata->flags & SDL_MESSAGEBOX_BUTTONS_RIGHT_TO_LEFT) {
+            sdlButton = &messageboxdata->buttons[messageboxdata->numbuttons - 1 - i];
+        } else {
+            sdlButton = &messageboxdata->buttons[i];
+        }
+
+        button = [alert addButtonWithTitle:[NSString stringWithUTF8String:sdlButton->text]];
+        if (sdlButton->flags & SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT) {
+            [button setKeyEquivalent:@"\r"];
+        } else if (sdlButton->flags & SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT) {
+            [button setKeyEquivalent:@"\033"];
+        } else {
+            [button setKeyEquivalent:@""];
+        }
+    }
+
+    presenter = [[SDL3MessageBoxPresenter alloc] initWithParentWindow:messageboxdata->window];
+
+    [presenter showAlert:alert];
+
+    clicked = presenter->clicked;
+    if (clicked >= NSAlertFirstButtonReturn) {
+        clicked -= NSAlertFirstButtonReturn;
+        if (messageboxdata->flags & SDL_MESSAGEBOX_BUTTONS_RIGHT_TO_LEFT) {
+            clicked = messageboxdata->numbuttons - 1 - clicked;
+        }
+        *buttonID = buttons[clicked].buttonID;
+        *result = true;
+    } else {
+        *result = SDL_SetError("Did not get a valid `clicked button' id: %ld", (long)clicked);
+    }
+}
+
+// Display a Cocoa message box
+bool Cocoa_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonID)
+{
+    @autoreleasepool {
+        __block bool result = 0;
+
+        if ([NSThread isMainThread]) {
+            Cocoa_ShowMessageBoxImpl(messageboxdata, buttonID, &result);
+        } else {
+            dispatch_sync(dispatch_get_main_queue(), ^{
+              Cocoa_ShowMessageBoxImpl(messageboxdata, buttonID, &result);
+            });
+        }
+        return result;
+    }
+}
+
+#endif // SDL_VIDEO_DRIVER_COCOA