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36 lines
1.2 KiB
Objective-C
36 lines
1.2 KiB
Objective-C
//
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// ASOverlayLayoutSpec.h
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// AsyncDisplayKit
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//
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// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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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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#import <AsyncDisplayKit/ASLayoutSpec.h>
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NS_ASSUME_NONNULL_BEGIN
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/**
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This layout spec lays out a single layoutElement child and then overlays a layoutElement object on top of it streched to its size
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*/
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@interface ASOverlayLayoutSpec : ASLayoutSpec
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/**
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* Overlay layoutElement of this layout spec
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*/
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@property (nullable, nonatomic, strong) id<ASLayoutElement> overlay;
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/**
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* Creates and returns an ASOverlayLayoutSpec object with a given child and an layoutElement that act as overlay.
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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 overlay A layoutElement object that is laid out over the child. If this is nil, the overlay is omitted.
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*/
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+ (instancetype)overlayLayoutSpecWithChild:(id<ASLayoutElement>)child overlay:(nullable id<ASLayoutElement>)overlay AS_WARN_UNUSED_RESULT;
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@end
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NS_ASSUME_NONNULL_END
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