Swiftgram/AsyncDisplayKit/ASContextTransitioning.h

41 lines
1.0 KiB
Objective-C

//
// ASContextTransitioning.h
// AsyncDisplayKit
//
// Created by Levi McCallum on 2/4/16.
// Copyright © 2016 Facebook. All rights reserved.
//
#import <AsyncDisplayKit/ASDisplayNode.h>
@protocol ASContextTransitioning <NSObject>
/**
@abstreact Defines if the given transition is animated
*/
- (BOOL)isAnimated;
- (ASLayout *)layout;
- (ASSizeRange)constrainedSize;
/**
@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