Please comment: adding tap and long press action with blocks to any view

gistfile1.txt

#import <objc/runtime.h>

@implementation UIView (DTActionHandlers)

- (id)tapActionBlock
{
	return objc_getAssociatedObject(self, "DTActionHandlerTap");
}

- (void)addTapActionWithBlock:(void (^)(void))block
{
	if (![self tapActionBlock])
	{
		UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(__handleTapAction:)];
		[self addGestureRecognizer:tap];
	}
	
	objc_setAssociatedObject(self, "DTActionHandlerTap", block, OBJC_ASSOCIATION_COPY);
}

- (void)__handleTapAction:(UITapGestureRecognizer *)gesture
{
	if (gesture.state == UIGestureRecognizerStateRecognized)
	{
		void (^block)(void) = [self tapActionBlock];
		
		if (block)
		{
			block();
		}
	}
}

- (id)longPressActionBlock
{
	return objc_getAssociatedObject(self, "DTActionHandlerLongPress");
}

- (void)addLongPressActionWithBlock:(void (^)(void))block
{
	if (![self longPressActionBlock])
	{
		UILongPressGestureRecognizer *tap = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(__handleLongPressAction:)];
		[self addGestureRecognizer:tap];
	}
	
	objc_setAssociatedObject(self, "DTActionHandlerLongPress", block, OBJC_ASSOCIATION_COPY);	
}

- (void)__handleLongPressAction:(UILongPressGestureRecognizer *)gesture
{
	if (gesture.state == UIGestureRecognizerStateBegan)
	{
		void (^block)(void) = [self longPressActionBlock];
		
		if (block)
		{
			block();
		}
	}
}

@end