//
//  UIView+gesture.m
//
//  Created by CHD on 2018/5/8.
//  Copyright © 2018年 chd. All rights reserved.
//


#import "UIView+gesture.h"
#import <objc/runtime.h>

static char kDTActionHandlerTapBlockKey;
static char kDTActionHandlerTapGestureKey;
static char kDTActionHandlerLongPressBlockKey;
static char kDTActionHandlerLongPressGestureKey;

@implementation UIView (gesture)

- (void)setTapActionWithBlock:(void (^)(UITapGestureRecognizer*tap))block
{
    self.userInteractionEnabled = YES;
    UITapGestureRecognizer *gesture = objc_getAssociatedObject(self, &kDTActionHandlerTapGestureKey);
    
    if (!gesture)
    {
        gesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(__handleActionForTapGesture:)];
        [self addGestureRecognizer:gesture];
        objc_setAssociatedObject(self, &kDTActionHandlerTapGestureKey, gesture, OBJC_ASSOCIATION_RETAIN);
    }
    
    objc_setAssociatedObject(self, &kDTActionHandlerTapBlockKey, block, OBJC_ASSOCIATION_COPY);
}

- (void)__handleActionForTapGesture:(UITapGestureRecognizer *)gesture
{
    
    if (gesture.state == UIGestureRecognizerStateRecognized)
    {
        void(^action)(UITapGestureRecognizer*tap) = objc_getAssociatedObject(self, &kDTActionHandlerTapBlockKey);
        
        if (action)
        {
            action(gesture);
        }
    }
}

- (void)setLongPressActionWithBlock:(void (^)(UILongPressGestureRecognizer*longP))block
{
    self.userInteractionEnabled = YES;
    UILongPressGestureRecognizer *gesture = objc_getAssociatedObject(self, &kDTActionHandlerLongPressGestureKey);
    
    if (!gesture)
    {
        gesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(__handleActionForLongPressGesture:)];
        [self addGestureRecognizer:gesture];
        objc_setAssociatedObject(self, &kDTActionHandlerLongPressGestureKey, gesture, OBJC_ASSOCIATION_RETAIN);
    }
    
    objc_setAssociatedObject(self, &kDTActionHandlerLongPressBlockKey, block, OBJC_ASSOCIATION_COPY);
}

- (void)__handleActionForLongPressGesture:(UITapGestureRecognizer *)gesture
{
    if (gesture.state == UIGestureRecognizerStateBegan)
    {
        void(^action)(UILongPressGestureRecognizer*longP) = objc_getAssociatedObject(self, &kDTActionHandlerLongPressBlockKey);
        
        if (action)
        {
            action((UILongPressGestureRecognizer*)gesture);
        }
    }
}

@end