//
//  FKRefreshControl.h
//  FirstLink
//
//  Created by jack on 15/12/1.
//  Copyright © 2015年 FirstLink. All rights reserved.
//

#import <Foundation/Foundation.h>

///**
// * 当前refreshing状态
// */
//typedef enum {
//    FKRefreshingDirectionNone    = 0,
//    FKRefreshingDirectionTop     = 1 << 0,
//    FKRefreshingDirectionBottom  = 1 << 1
//} FKRefreshingDirections;
//
///**
// *  指定回调方向
// */
//typedef enum {
//    FKRefreshDirectionTop = 0,
//    FKRefreshDirectionBottom
//} FKRefreshDirection;


@protocol FKRefreshControlDelegate;

@interface FKRefreshControl : NSObject
///当前的状态
@property (nonatomic,assign,readonly)RefreshingDirections refreshingDirection;

@property (nonatomic,readonly)UIScrollView * scrollView;


- (instancetype)initWithScrollView:(UIScrollView *)scrollView delegate:(id<FKRefreshControlDelegate>)delegate;


///是否开启下拉刷新，YES-开启 NO-不开启 默认是NO
@property (nonatomic,assign)BOOL topEnabled;
///是否开启上拉加载更多，YES-开启 NO-不开启 默认是NO
@property (nonatomic,assign)BOOL bottomEnabled;

///下拉刷新 状态改变的距离 默认65.0
@property (nonatomic,assign)float enableInsetTop;
///上拉 状态改变的距离 默认65.0
@property (nonatomic,assign)float enableInsetBottom;

/*
 *是否开启自动刷新,下拉到enableInsetTop位置自动刷新
 YES-开启，NO-不开启，默认是NO
 */
@property (nonatomic,assign)BOOL autoRefreshTop;
/*
 * 是否开启自动加载更多，上拉到enableInsetBottom位置自动加载跟多
 YES-开启，NO-不开启，默认是NO
 */
@property (nonatomic,assign)BOOL autoRefreshBottom;

/**
 *	注册Top加载的view,view必须接受RefreshViewDelegate协议,默认是RefreshTopView
 *	@param topClass 类类型
 */
- (void)registerClassForTopView:(Class)topClass;
/**
 *	注册Bottom加载的view,view必须接受RefreshViewDelegate协议,默认是RefreshBottomView
 *	@param bottomClass 类类型
 */
- (void)registerClassForBottomView:(Class)bottomClass;


///开始
- (void)startRefreshingDirection:(RefreshDirection)direction;

///完成
- (void)finishRefreshingDirection:(RefreshDirection)direction;


@end

/**
 *	代理方法
 */
@protocol FKRefreshControlDelegate <NSObject>


@optional

- (void)refreshControl:(FKRefreshControl *)refreshControl didEngageRefreshDirection:(RefreshDirection) direction;


@end