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34 lines
965 B
Objective-C
34 lines
965 B
Objective-C
//
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// ASContextTransitioning.h
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// AsyncDisplayKit
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//
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// Created by Levi McCallum on 2/4/16.
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// Copyright © 2016 Facebook. All rights reserved.
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//
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#import <AsyncDisplayKit/AsyncDisplayKit.h>
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@protocol ASContextTransitioning <NSObject>
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/**
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@abstract The frame for the given node before the transition began.
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@discussion Returns CGRectNull if the node was not in the hierarchy before the transition.
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*/
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- (CGRect)initialFrameForNode:(ASDisplayNode *)node;
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/**
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@abstract The frame for the given node when the transition completes.
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@discussion Returns CGRectNull if the node is no longer in the hierarchy after the transition.
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*/
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- (CGRect)finalFrameForNode:(ASDisplayNode *)node;
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- (NSArray<ASLayout *> *)sublayouts;
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/**
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@abstract Invoke this method when the transition is completed in `transitionLayout:`
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@discussion Passing NO to `didComplete` will set the original layout as the new layout.
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*/
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- (void)completeTransition:(BOOL)didComplete;
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@end
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