UIResponder sendAction

UIResponder+sendAction.h

//
//  UIResponder+sendAction.h
//  Berik Visschers
//
//  Created by Berik Visschers on 2013-03-22.
//  Copyright (c) 2013 Xaton. All rights reserved.
//

#import <UIKit/UIKit.h>

#define propagateAction() ([self sendAction:_cmd])

@interface UIResponder (sendAction)

- (BOOL)sendAction:(SEL)action;
- (BOOL)sendAction:(SEL)action forEvent:(UIEvent *)event;
- (BOOL)sendAction:(SEL)action to:(id)target forEvent:(UIEvent *)event;
- (BOOL)sendAction:(SEL)action to:(id)target from:(id)sender forEvent:(UIEvent *)event;

@end

UIResponder+sendAction.m

//
//  UIResponder+sendAction.m
//  Berik Visschers
//
//  Created by Berik Visschers on 2013-03-22.
//  Copyright (c) 2013 Xaton. All rights reserved.
//

#import "UIResponder+sendAction.h"

@implementation UIResponder (sendAction)

- (BOOL)sendAction:(SEL)action {
    return [self sendAction:action forEvent:nil];
}

- (BOOL)sendAction:(SEL)action forEvent:(UIEvent *)event {
    return [self sendAction:action to:self.nextResponder forEvent:event];
}

- (BOOL)sendAction:(SEL)action to:(id)target forEvent:(UIEvent *)event {
    return [self sendAction:action to:target from:self forEvent:event];
}

- (BOOL)sendAction:(SEL)action to:(id)target from:(id)sender forEvent:(UIEvent *)event {
    UIResponder *implementor = target;
    while ([implementor respondsToSelector:action] == NO) {
        implementor = [implementor nextResponder];
        if (implementor == nil) {
            return NO;
        }
    }
    
//    [[UIApplication sharedApplication] sendAction:action to:implementor from:sender forEvent:event];
    
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
    NSMethodSignature *methodSignature = [implementor methodSignatureForSelector:action];
    switch (methodSignature.numberOfArguments) {
        case 2:
            [implementor performSelector:action];
            break;
        case 3:
            [implementor performSelector:action withObject:sender];
            break;
        case 4:
            [implementor performSelector:action withObject:sender withObject:event];
            break;
            
        default:
            NSAssert(NO, @"Maximum two arguments are supported");
            break;
    }
#pragma clang diagnostic pop
    
    return YES;
}

@end