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60 lines
2.2 KiB
Objective-C
60 lines
2.2 KiB
Objective-C
/* 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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#import "ASContextTransitioning.h"
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@interface ASDisplayNode (Beta)
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+ (BOOL)usesImplicitHierarchyManagement;
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+ (void)setUsesImplicitHierarchyManagement:(BOOL)enabled;
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/** @name Layout */
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/**
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* @abstract Recursively ensures node and all subnodes are displayed.
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* @see Full documentation in ASDisplayNode+FrameworkPrivate.h
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*/
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- (void)recursivelyEnsureDisplaySynchronously:(BOOL)synchronously;
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/**
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* @abstract allow modification of a context before the node's content is drawn
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*
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* @discussion Set the block to be called after the context has been created and before the node's content is drawn.
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* You can override this to modify the context before the content is drawn. You are responsible for saving and
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* restoring context if necessary. Restoring can be done in contextDidDisplayNodeContent
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* This block can be called from *any* thread and it is unsafe to access any UIKit main thread properties from it.
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*/
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@property (nonatomic, strong) ASDisplayNodeContextModifier willDisplayNodeContentWithRenderingContext;
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/**
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* @abstract allow modification of a context after the node's content is drawn
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*/
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@property (nonatomic, strong) ASDisplayNodeContextModifier didDisplayNodeContentWithRenderingContext;
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/** @name Layout Transitioning */
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/**
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* @discussion A place to perform your animation. New nodes have been inserted here. You can also use this time to re-order the hierarchy.
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*/
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- (void)animateLayoutTransition:(id<ASContextTransitioning>)context;
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/**
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* @discussion A place to clean up your nodes after the transition
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*/
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- (void)didCompleteLayoutTransition:(id<ASContextTransitioning>)context;
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/**
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* @abstract Invalidates the current layout and begins a relayout of the node to the new layout returned in `calculateLayoutThatFits:`.
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*
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* @discussion Animation is optional, but will still proceed through the `transitionLayout` methods with `isAnimated == NO`.
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*/
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- (ASLayout *)transitionLayoutWithSizeRange:(ASSizeRange)constrainedSize animated:(BOOL)animated;
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@end
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