Swiftgram/AsyncDisplayKit/ASViewController.h
2016-05-10 14:44:32 -07:00

60 lines
2.1 KiB
Objective-C

//
// ASViewController.h
// AsyncDisplayKit
//
// Created by Huy Nguyen on 16/09/15.
// Copyright (c) 2015 Facebook. All rights reserved.
//
#import <UIKit/UIKit.h>
#import <AsyncDisplayKit/ASDisplayNode.h>
NS_ASSUME_NONNULL_BEGIN
typedef ASEnvironmentDisplayTraits (^ASEnvironmentDisplayTraitsForTraitCollectionBlock)(UITraitCollection *traitCollection);
typedef ASEnvironmentDisplayTraits (^ASEnvironmentDisplayTraitsForTraitWindowSizeBlock)(CGSize windowSize);
@interface ASViewController<__covariant DisplayNodeType : ASDisplayNode *> : UIViewController
- (instancetype)initWithNode:(DisplayNodeType)node NS_DESIGNATED_INITIALIZER;
@property (nonatomic, strong, readonly) DisplayNodeType node;
@property (nonatomic, strong) id displayTraitsContext;
/**
* Set this block to customize the ASDisplayTraits returned when the VC transitions to the given traitCollection.
*/
@property (nonatomic, copy) ASEnvironmentDisplayTraitsForTraitCollectionBlock overrideDisplayTraitsWithTraitCollection;
/**
* Set this block to customize the ASDisplayTraits returned when the VC transitions to the given window size.
*/
@property (nonatomic, copy) ASEnvironmentDisplayTraitsForTraitWindowSizeBlock overrideDisplayTraitsWithWindowSize;
/**
* @abstract Passthrough property to the the .interfaceState of the node.
* @return The current ASInterfaceState of the node, indicating whether it is visible and other situational properties.
* @see ASInterfaceState
*/
@property (nonatomic, readonly) ASInterfaceState interfaceState;
// AsyncDisplayKit 2.0 BETA: This property is still being tested, but it allows
// blocking as a view controller becomes visible to ensure no placeholders flash onscreen.
// Refer to examples/SynchronousConcurrency, AsyncViewController.m
@property (nonatomic, assign) BOOL neverShowPlaceholders;
/**
* The constrained size used to measure the backing node.
*
* @discussion Defaults to providing a size range that uses the view controller view's bounds as
* both the min and max definitions. Override this method to provide a custom size range to the
* backing node.
*/
- (ASSizeRange)nodeConstrainedSize;
@end
NS_ASSUME_NONNULL_END