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31 lines
978 B
Objective-C
31 lines
978 B
Objective-C
/*
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* Copyright (c) 2014-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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*/
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#import <AsyncDisplayKit/ASLayoutSpec.h>
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NS_ASSUME_NONNULL_BEGIN
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/**
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Lays out a single layoutable child, then lays out a background layoutable instance behind it stretched to its size.
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*/
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@interface ASBackgroundLayoutSpec : ASLayoutSpec
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@property (nullable, nonatomic, strong) id<ASLayoutable> background;
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/**
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@param child A child that is laid out to determine the size of this spec.
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@param background A layoutable object that is laid out behind the child. If this is nil, the background is omitted.
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*/
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+ (instancetype)backgroundLayoutSpecWithChild:(id<ASLayoutable>)child background:(nullable id<ASLayoutable>)background;
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@end
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NS_ASSUME_NONNULL_END
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