//
//  UIView+ViewController.m
//  Created by MacKun on 15/4/25.
//  Copyright (c) 2015年 MacKun All rights reserved.
//

#import "UIView+ViewController.h"

@implementation UIView (ViewController)
/**
 *  @brief  找到当前view所在的viewcontroler
 */
- (UIViewController *)viewController
{
    UIResponder *responder = self.nextResponder;
    do {
        if ([responder isKindOfClass:[UIViewController class]]) {
            return (UIViewController *)responder;
        }
        responder = responder.nextResponder;
    } while (responder);
    return nil;
}

- (void)removeAllSubviews {
    while (self.subviews.count) {
        [self.subviews.lastObject removeFromSuperview];
    }
}


- (CGPoint)convertPoint:(CGPoint)point toViewOrWindow:(UIView *)view {
    if (!view) {
        if ([self isKindOfClass:[UIWindow class]]) {
            return [((UIWindow *)self) convertPoint:point toWindow:nil];
        } else {
            return [self convertPoint:point toView:nil];
        }
    }
    
    UIWindow *from = [self isKindOfClass:[UIWindow class]] ? (id)self : self.window;
    UIWindow *to = [view isKindOfClass:[UIWindow class]] ? (id)view : view.window;
    if ((!from || !to) || (from == to)) return [self convertPoint:point toView:view];
    point = [self convertPoint:point toView:from];
    point = [to convertPoint:point fromWindow:from];
    point = [view convertPoint:point fromView:to];
    return point;
}

- (CGPoint)convertPoint:(CGPoint)point fromViewOrWindow:(UIView *)view {
    if (!view) {
        if ([self isKindOfClass:[UIWindow class]]) {
            return [((UIWindow *)self) convertPoint:point fromWindow:nil];
        } else {
            return [self convertPoint:point fromView:nil];
        }
    }
    
    UIWindow *from = [view isKindOfClass:[UIWindow class]] ? (id)view : view.window;
    UIWindow *to = [self isKindOfClass:[UIWindow class]] ? (id)self : self.window;
    if ((!from || !to) || (from == to)) return [self convertPoint:point fromView:view];
    point = [from convertPoint:point fromView:view];
    point = [to convertPoint:point fromWindow:from];
    point = [self convertPoint:point fromView:to];
    return point;
}

- (CGRect)convertRect:(CGRect)rect toViewOrWindow:(UIView *)view {
    if (!view) {
        if ([self isKindOfClass:[UIWindow class]]) {
            return [((UIWindow *)self) convertRect:rect toWindow:nil];
        } else {
            return [self convertRect:rect toView:nil];
        }
    }
    
    UIWindow *from = [self isKindOfClass:[UIWindow class]] ? (id)self : self.window;
    UIWindow *to = [view isKindOfClass:[UIWindow class]] ? (id)view : view.window;
    if (!from || !to) return [self convertRect:rect toView:view];
    if (from == to) return [self convertRect:rect toView:view];
    rect = [self convertRect:rect toView:from];
    rect = [to convertRect:rect fromWindow:from];
    rect = [view convertRect:rect fromView:to];
    return rect;
}

- (CGRect)convertRect:(CGRect)rect fromViewOrWindow:(UIView *)view {
    if (!view) {
        if ([self isKindOfClass:[UIWindow class]]) {
            return [((UIWindow *)self) convertRect:rect fromWindow:nil];
        } else {
            return [self convertRect:rect fromView:nil];
        }
    }
    
    UIWindow *from = [view isKindOfClass:[UIWindow class]] ? (id)view : view.window;
    UIWindow *to = [self isKindOfClass:[UIWindow class]] ? (id)self : self.window;
    if ((!from || !to) || (from == to)) return [self convertRect:rect fromView:view];
    rect = [from convertRect:rect fromView:view];
    rect = [to convertRect:rect fromWindow:from];
    rect = [self convertRect:rect fromView:to];
    return rect;
}

- (void)clearScrollViewDelegate {
    if ([self isKindOfClass:[UIScrollView class]]) {
        ((UIScrollView *)self).delegate = nil;
        if ([self isKindOfClass:[UITableView class]]) {
            ((UITableView *)self).delegate = nil;
        }
    }
    for (UIView *sub in self.subviews) {
        [sub clearScrollViewDelegate];
    }
}

- (void)removeAllGestures {
    NSArray *gs = [self.gestureRecognizers copy];
    for (UIGestureRecognizer *g in gs) {
        [self removeGestureRecognizer:g];
    }
}
- (void)removeAllGesturesWithSubViews {
    [self removeAllGestures];
    for (UIView *v in self.subviews) {
        [v removeAllGesturesWithSubViews];
    }
    [UIView animateWithDuration:0 animations:^{
        
    }];
}

+ (void)disableAnimationWithBlock:(void (^)(void))block {
    if (!block) return;
    BOOL aniEnabled = [CATransaction disableActions];
    [CATransaction setDisableActions:YES];
    block();
    [CATransaction setDisableActions:aniEnabled];
}

@end