NSEvent+RACSignals

gistfile1.m

@implementation NSEvent (RACSignals)

+ (id<RACSignal>)rac_signalForEventsMatchingMask:(NSEventMask)eventMask {
  return [RACSignal createSignal:^(id<RACSubscriber> subscriber) {
		id monitor = [NSEvent addLocalMonitorForEventsMatchingMask:eventMask handler:^(NSEvent *event) {
			[subscriber sendNext:event];
			return event;
		}];

		return [RACDisposable disposableWithBlock:^{
			[NSEvent removeMonitor:monitor];
		}];
	}];
}

+ (id<RACSignal>)rac_mouseLocation {
	return [[[NSEvent
		rac_signalForEventsMatchingMask:NSMouseMovedMask]
		map:^(id _) {
			return [NSValue valueWithPoint:NSEvent.mouseLocation];
		}]
		startWith:[NSValue valueWithPoint:NSEvent.mouseLocation]];
}

@end