//
// UIControl+HitTestEdgeInsets.m
//
// Created by Maksym Shcheglov on 18/05/16.
//
// The MIT License (MIT)
// Copyright (c) 2015 Maksym Shcheglov
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//


#import "UIControl+HitTestEdgeInsets.h"

#import <objc/runtime.h>

@implementation UIControl (HitTestEdgeInsets)

- (void)setHitTestEdgeInsets:(UIEdgeInsets)hitTestEdgeInsets
{
    NSValue *value = [NSValue value:&hitTestEdgeInsets withObjCType:@encode(UIEdgeInsets)];

    objc_setAssociatedObject(self, @selector(hitTestEdgeInsets), value, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}

- (UIEdgeInsets)hitTestEdgeInsets
{
    NSValue *value = objc_getAssociatedObject(self, @selector(hitTestEdgeInsets));

    if (value) {
        UIEdgeInsets edgeInsets;
        [value getValue:&edgeInsets];
        return edgeInsets;
    }

    return UIEdgeInsetsZero;
}

- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event
{
    if (UIEdgeInsetsEqualToEdgeInsets(self.hitTestEdgeInsets, UIEdgeInsetsZero) || !self.enabled || self.hidden || !self.userInteractionEnabled || self.alpha == 0) return [super pointInside:point withEvent:event];

    CGRect relativeFrame = self.bounds;
    CGRect hitFrame = UIEdgeInsetsInsetRect(relativeFrame, self.hitTestEdgeInsets);

    return CGRectContainsPoint(hitFrame, point);
}

@end
