app_darwin.m

// +build !ci
// +build !ios

extern void themeChanged();

#import <Foundation/Foundation.h>

@interface FyneUserNotificationCenterDelegate : NSObject<NSUserNotificationCenterDelegate>

- (BOOL)userNotificationCenter:(NSUserNotificationCenter*)center
    shouldPresentNotification:(NSUserNotification*)notification;

@end

@implementation FyneUserNotificationCenterDelegate

- (BOOL)userNotificationCenter:(NSUserNotificationCenter*)center
    shouldPresentNotification:(NSUserNotification*)notification
{
    return YES;
}

@end

void sendNSUserNotification(const char *, const char *);

bool isBundled() {
    return [[NSBundle mainBundle] bundleIdentifier] != nil;
}

bool isDarkMode() {
    NSString *style = [[NSUserDefaults standardUserDefaults] stringForKey:@"AppleInterfaceStyle"];
    return [@"Dark" isEqualToString:style];
}

void sendNotification(const char *title, const char *body) {
    NSUserNotificationCenter *center = [NSUserNotificationCenter defaultUserNotificationCenter];
    if (center.delegate == nil) {
        center.delegate = [[FyneUserNotificationCenterDelegate new] autorelease];
    }

    NSString *uuid = [[NSUUID UUID] UUIDString];
    NSUserNotification *notification = [[NSUserNotification new] autorelease];
    notification.title = [NSString stringWithUTF8String:title];
    notification.informativeText = [NSString stringWithUTF8String:body];
    notification.identifier = [NSString stringWithFormat:@"%@-fyne-notify-%@", [[NSBundle mainBundle] bundleIdentifier], uuid];
    [center scheduleNotification:notification];
}

void watchTheme() {
    [[NSDistributedNotificationCenter defaultCenter] addObserverForName:@"AppleInterfaceThemeChangedNotification" object:nil queue:nil
        usingBlock:^(NSNotification *note) {
        themeChanged(); // calls back into Go
    }];
}