Merge commit '7621e2f8dec938cf48181c8b10afc9b01f444e68' into beta

2026-05-08 07:14:48 +02:00 · 2025-12-06 02:17:48 +04:00
commit 8344b97e03
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+//
+//  ASPendingStateController.h
+//  Texture
+//
+//  Copyright (c) Facebook, Inc. and its affiliates.  All rights reserved.
+//  Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc.  All rights reserved.
+//  Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#import <Foundation/Foundation.h>
+#import <AsyncDisplayKit/ASBaseDefines.h>
+
+@class ASDisplayNode;
+
+NS_ASSUME_NONNULL_BEGIN
+
+/**
+ A singleton that is responsible for applying changes to
+ UIView/CALayer properties of display nodes when they
+ have been set on background threads.
+ 
+ This controller will enqueue run-loop events to flush changes
+ but if you need them flushed now you can call `flush` from the main thread.
+ */
+AS_SUBCLASSING_RESTRICTED
+@interface ASPendingStateController : NSObject
+
+ (ASPendingStateController *)sharedInstance;
+
+@property (nonatomic, readonly) BOOL hasChanges;
+
+/**
+ Flush all pending states for nodes now. Any UIView/CALayer properties
+ that have been set in the background will be applied to their
+ corresponding views/layers before this method returns.
+ 
+ You must call this method on the main thread.
+ */
+- (void)flush;
+
+/**
+ Register this node as having pending state that needs to be copied
+ over to the view/layer. This is called automatically by display nodes
+ when their view/layer properties are set post-load on background threads.
+ */
+- (void)registerNode:(ASDisplayNode *)node;
+
+@end
+
+NS_ASSUME_NONNULL_END