Swiftgram/submodules/AsyncDisplayKit/Source/ASContextTransitioning.h
Peter 9bc996374f Add 'submodules/AsyncDisplayKit/' from commit '02bedc12816e251ad71777f9d2578329b6d2bef6'
git-subtree-dir: submodules/AsyncDisplayKit
git-subtree-mainline: d06f423e0ed3df1fed9bd10d79ee312a9179b632
git-subtree-split: 02bedc12816e251ad71777f9d2578329b6d2bef6
2019-06-11 18:42:43 +01:00

73 lines
1.9 KiB
Objective-C

//
// ASContextTransitioning.h
// Texture
//
// Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
// Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc. All rights reserved.
// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
//
#import <AsyncDisplayKit/ASDimension.h>
@class ASDisplayNode;
@class ASLayout;
NS_ASSUME_NONNULL_BEGIN
AS_EXTERN NSString * const ASTransitionContextFromLayoutKey;
AS_EXTERN NSString * const ASTransitionContextToLayoutKey;
@protocol ASContextTransitioning <NSObject>
/**
@abstract Defines if the given transition is animated
*/
- (BOOL)isAnimated;
/**
* @abstract Retrieve either the "from" or "to" layout
*/
- (nullable ASLayout *)layoutForKey:(NSString *)key;
/**
* @abstract Retrieve either the "from" or "to" constrainedSize
*/
- (ASSizeRange)constrainedSizeForKey:(NSString *)key;
/**
* @abstract Retrieve the subnodes from either the "from" or "to" layout
*/
- (NSArray<ASDisplayNode *> *)subnodesForKey:(NSString *)key;
/**
* @abstract Subnodes that have been inserted in the layout transition
*/
- (NSArray<ASDisplayNode *> *)insertedSubnodes;
/**
* @abstract Subnodes that will be removed in the layout transition
*/
- (NSArray<ASDisplayNode *> *)removedSubnodes;
/**
@abstract The frame for the given node before the transition began.
@discussion Returns CGRectNull if the node was not in the hierarchy before the transition.
*/
- (CGRect)initialFrameForNode:(ASDisplayNode *)node;
/**
@abstract The frame for the given node when the transition completes.
@discussion Returns CGRectNull if the node is no longer in the hierarchy after the transition.
*/
- (CGRect)finalFrameForNode:(ASDisplayNode *)node;
/**
@abstract Invoke this method when the transition is completed in `animateLayoutTransition:`
@discussion Passing NO to `didComplete` will set the original layout as the new layout.
*/
- (void)completeTransition:(BOOL)didComplete;
@end
NS_ASSUME_NONNULL_END