Files

42 lines
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Objective-C

//
// ASTipProvider.h
// AsyncDisplayKit
//
// Created by Adlai Holler on 4/12/17.
// Copyright © 2017 Facebook. All rights reserved.
//
#import <Foundation/Foundation.h>
#import <AsyncDisplayKit/ASBaseDefines.h>
#if AS_ENABLE_TIPS
@class ASDisplayNode, ASTip;
NS_ASSUME_NONNULL_BEGIN
/**
* An abstract superclass for all tip providers.
*/
@interface ASTipProvider : NSObject
/**
* The provider looks at the node's current situation and
* generates a tip, if any, to add to the node.
*
* Subclasses must override this.
*/
- (nullable ASTip *)tipForNode:(ASDisplayNode *)node;
@end
@interface ASTipProvider (Lookup)
@property (class, nonatomic, copy, readonly) NSArray<__kindof ASTipProvider *> *all;
@end
NS_ASSUME_NONNULL_END
#endif // AS_ENABLE_TIPS