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43 lines
909 B
Objective-C
43 lines
909 B
Objective-C
//
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// ASTipProvider.h
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// Texture
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//
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// Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
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// Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc. All rights reserved.
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// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
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//
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#import <Foundation/Foundation.h>
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#import <AsyncDisplayKit/ASBaseDefines.h>
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#if AS_ENABLE_TIPS
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@class ASDisplayNode, ASTip;
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NS_ASSUME_NONNULL_BEGIN
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/**
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* An abstract superclass for all tip providers.
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*/
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@interface ASTipProvider : NSObject
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/**
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* The provider looks at the node's current situation and
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* generates a tip, if any, to add to the node.
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*
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* Subclasses must override this.
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*/
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- (nullable ASTip *)tipForNode:(ASDisplayNode *)node;
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@end
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@interface ASTipProvider (Lookup)
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@property (class, nonatomic, copy, readonly) NSArray<__kindof ASTipProvider *> *all;
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@end
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NS_ASSUME_NONNULL_END
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#endif // AS_ENABLE_TIPS
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