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1410b29b63
* Lock up to yogaRoot during layout to avoid dead lock. 1) lock to root for tree 2) lock self to change parent (& consequently root) 3) Implement ASLocking (tryLock) on ASNodeController 4) add lockPair to try-lock node & controller together 5) lock controllers if they exist in lockToRoot... Disable some asserts due to lock to root. :( LL# No commands remaining. * Add macro so non-Yoga still builds :) * wut
99 lines
2.7 KiB
Objective-C
99 lines
2.7 KiB
Objective-C
//
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// ASDisplayNode+Yoga.h
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// Texture
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//
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// Copyright (c) Pinterest, Inc. All rights reserved.
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// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
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//
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#import <AsyncDisplayKit/ASAvailability.h>
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#if YOGA
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NS_ASSUME_NONNULL_BEGIN
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@class ASLayout;
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AS_EXTERN void ASDisplayNodePerformBlockOnEveryYogaChild(ASDisplayNode * _Nullable node, void(^block)(ASDisplayNode *node));
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@interface ASDisplayNode (Yoga)
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@property (copy) NSArray *yogaChildren;
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- (void)addYogaChild:(ASDisplayNode *)child;
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- (void)removeYogaChild:(ASDisplayNode *)child;
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- (void)insertYogaChild:(ASDisplayNode *)child atIndex:(NSUInteger)index;
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- (void)semanticContentAttributeDidChange:(UISemanticContentAttribute)attribute;
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@property BOOL yogaLayoutInProgress;
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// TODO: Make this atomic (lock).
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@property (nullable, nonatomic) ASLayout *yogaCalculatedLayout;
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// Will walk up the Yoga tree and returns the root node
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- (ASDisplayNode *)yogaRoot;
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/**
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* @discussion Attempts(spinning) to lock all node up to root node when yoga is enabled.
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* This will lock self when yoga is not enabled;
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*/
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- (ASLockSet)lockToRootIfNeededForLayout;
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@end
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// These methods are intended to be used internally to Texture, and should not be called directly.
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@interface ASDisplayNode (YogaInternal)
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/// For internal usage only
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- (BOOL)shouldHaveYogaMeasureFunc;
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/// For internal usage only
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- (ASLayout *)calculateLayoutYoga:(ASSizeRange)constrainedSize;
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/// For internal usage only
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- (void)calculateLayoutFromYogaRoot:(ASSizeRange)rootConstrainedSize;
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/// For internal usage only
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- (void)invalidateCalculatedYogaLayout;
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/**
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* @discussion return true only when yoga enabled and the node is in yoga tree and the node is
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* not leaf that implemented measure function.
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*/
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- (BOOL)locked_shouldLayoutFromYogaRoot;
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@end
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@interface ASDisplayNode (YogaDebugging)
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- (NSString *)yogaTreeDescription;
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@end
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@interface ASLayoutElementStyle (Yoga)
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- (YGNodeRef)yogaNodeCreateIfNeeded;
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- (void)destroyYogaNode;
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@property (readonly) YGNodeRef yogaNode;
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@property ASStackLayoutDirection flexDirection;
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@property YGDirection direction;
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@property ASStackLayoutJustifyContent justifyContent;
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@property ASStackLayoutAlignItems alignItems;
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@property YGPositionType positionType;
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@property ASEdgeInsets position;
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@property ASEdgeInsets margin;
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@property ASEdgeInsets padding;
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@property ASEdgeInsets border;
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@property CGFloat aspectRatio;
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@property YGWrap flexWrap;
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@end
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NS_ASSUME_NONNULL_END
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// When Yoga is enabled, there are several points where we want to lock the tree to the root but otherwise (without Yoga)
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// will want to simply lock self.
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#define ASScopedLockSelfOrToRoot() ASScopedLockSet lockSet = [self lockToRootIfNeededForLayout]
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#else
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#define ASScopedLockSelfOrToRoot() ASLockScopeSelf()
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#endif
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