//
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// UIScrollView+FFPage.m
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// FFPage
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//
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// Created by North on 2019/8/9.
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// Copyright © 2019 North. All rights reserved.
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//
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#import "UIScrollView+FFPage.h"
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#import <objc/runtime.h>
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#import "FFPage.h"
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static void *TouchKey = @"touchKey";
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static void *BlockKey = @"blockKey";
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static void *FFHeaderRefreshKey = @"FFHeaderRefreshKey";
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static void *FFFooterRefreshKey = @"FFFooterRefreshKey";
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static void *AnimationKey = @"AnimationKey";
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@implementation UIScrollView (FFPage)
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- (void)setIsTouch:(BOOL)isTouch{
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if(isTouch != self.isTouch){
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objc_setAssociatedObject(self, TouchKey, @(isTouch).stringValue, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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if([self blockArray]){
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for (TouchBlock block in [self blockArray]) {
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if(block) block(isTouch);
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}
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}
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}
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}
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- (BOOL)isTouch{
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return [objc_getAssociatedObject(self, TouchKey) boolValue];
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}
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- (void)addTounchBlock:(TouchBlock)block{
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NSMutableArray * array = [self blockArray] ? [self blockArray].mutableCopy : @[].mutableCopy;
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[array addObject:block];
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objc_setAssociatedObject(self, BlockKey, array, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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- (NSMutableArray *)blockArray{
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return objc_getAssociatedObject(self, BlockKey);
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}
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- (BOOL)isReachTop{
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return self.contentOffset.y <= -self.contentInset.top;
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}
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- (BOOL)isReachLeft{
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return self.contentOffset.x <= -self.contentInset.left;
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}
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- (BOOL)isReachBottom{
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return self.contentOffset.y >= self.maxOffsetY;
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}
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- (BOOL)isReachRight{
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return self.contentOffset.x >= self.maxOffsetX;
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}
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- (CGFloat)maxOffsetX{
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return fmax(0, self.contentSize.width - CGRectGetWidth(self.bounds)) + self.contentInset.right;
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}
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- (CGFloat)maxOffsetY{
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return fmax(0, self.contentSize.height - CGRectGetHeight(self.bounds)) + self.contentInset.bottom;
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}
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- (void)setFf_header:(FFRereshView *)ff_header{
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if(ff_header != self.ff_header){
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[self.ff_header removeFromSuperview];
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[self insertSubview:ff_header atIndex:0];
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objc_setAssociatedObject(self, FFHeaderRefreshKey, ff_header, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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}
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- (FFRereshView *)ff_header{
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return objc_getAssociatedObject(self, FFHeaderRefreshKey);
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}
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- (void)setFf_footer:(FFRereshView *)ff_footer {
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if(ff_footer != self.ff_footer){
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[self.ff_footer removeFromSuperview];
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ff_footer.isFooter = YES;
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[self insertSubview:ff_footer atIndex:0];
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objc_setAssociatedObject(self, FFFooterRefreshKey, ff_footer, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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}
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- (FFRereshView *)ff_footer{
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return objc_getAssociatedObject(self, FFFooterRefreshKey);
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}
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- (void)setIsAnimationing:(BOOL)isAnimationing{
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objc_setAssociatedObject(self, AnimationKey, @(isAnimationing).stringValue, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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- (BOOL)isAnimationing{
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return [objc_getAssociatedObject(self, AnimationKey) boolValue];
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}
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@end
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