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637c4f3a9f
Passing around a pointer was leading to crashes as the ASVC was the sole owner of the context. There are cases where the VC would dealloc while its subnodes were laying out. This could lead to the subnodes accessing a garbage pointer.
65 lines
2.4 KiB
Objective-C
65 lines
2.4 KiB
Objective-C
//
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// ASViewController.h
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// AsyncDisplayKit
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//
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// Created by Huy Nguyen on 16/09/15.
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//
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// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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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 <UIKit/UIKit.h>
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#import <AsyncDisplayKit/ASDisplayNode.h>
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#import <AsyncDisplayKit/ASVisibilityProtocols.h>
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@class ASTraitCollection;
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NS_ASSUME_NONNULL_BEGIN
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typedef ASTraitCollection * _Nonnull (^ASDisplayTraitsForTraitCollectionBlock)(UITraitCollection *traitCollection);
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typedef ASTraitCollection * _Nonnull (^ASDisplayTraitsForTraitWindowSizeBlock)(CGSize windowSize);
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@interface ASViewController<__covariant DisplayNodeType : ASDisplayNode *> : UIViewController <ASVisibilityDepth>
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- (instancetype)initWithNode:(DisplayNodeType)node NS_DESIGNATED_INITIALIZER;
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@property (nonatomic, strong, readonly) DisplayNodeType node;
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/**
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* Set this block to customize the ASDisplayTraits returned when the VC transitions to the given traitCollection.
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*/
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@property (nonatomic, copy) ASDisplayTraitsForTraitCollectionBlock overrideDisplayTraitsWithTraitCollection;
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/**
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* Set this block to customize the ASDisplayTraits returned when the VC transitions to the given window size.
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*/
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@property (nonatomic, copy) ASDisplayTraitsForTraitWindowSizeBlock overrideDisplayTraitsWithWindowSize;
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/**
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* @abstract Passthrough property to the the .interfaceState of the node.
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* @return The current ASInterfaceState of the node, indicating whether it is visible and other situational properties.
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* @see ASInterfaceState
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*/
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@property (nonatomic, readonly) ASInterfaceState interfaceState;
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// AsyncDisplayKit 2.0 BETA: This property is still being tested, but it allows
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// blocking as a view controller becomes visible to ensure no placeholders flash onscreen.
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// Refer to examples/SynchronousConcurrency, AsyncViewController.m
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@property (nonatomic, assign) BOOL neverShowPlaceholders;
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/**
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* The constrained size used to measure the backing node.
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*
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* @discussion Defaults to providing a size range that uses the view controller view's bounds as
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* both the min and max definitions. Override this method to provide a custom size range to the
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* backing node.
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*/
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- (ASSizeRange)nodeConstrainedSize;
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@end
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NS_ASSUME_NONNULL_END |